CN103639696B - Rail freight double leval jib bottom door bell mouth mechanism's mounting equipment and assemble method - Google Patents
Rail freight double leval jib bottom door bell mouth mechanism's mounting equipment and assemble method Download PDFInfo
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- CN103639696B CN103639696B CN201310638644.9A CN201310638644A CN103639696B CN 103639696 B CN103639696 B CN 103639696B CN 201310638644 A CN201310638644 A CN 201310638644A CN 103639696 B CN103639696 B CN 103639696B
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- bell mouth
- out against
- side wall
- lower side
- anachomata
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
Abstract
The invention discloses rail freight double leval jib bottom door bell mouth mounting equipment, comprise and be arranged on the vertical lateral locator of first on base plate, the first center filler, the first underframe binding clasp, first time headwall holding device, bell mouth module position device group, second time headwall holding device, the second underframe binding clasp, the second center filler, the second vertical lateral locator from front to back successively; The the first lower side wall anachomata being arranged on base plate side holds out against unit and the first lower side wall catachomata holds out against unit; The the second lower side wall anachomata being arranged on base plate opposite side holds out against unit and the second lower side wall catachomata holds out against unit.Invention increases the lural assembly precision of rail freight double leval jib bottom door and packaging efficiency.
Description
Technical field
The present invention relates to rail freight package technique field, be specifically related to a kind of rail freight double leval jib bottom door bell mouth mechanism's mounting equipment and assemble method.
Technical background
In railway freight-car industry, hopper wagon system adopts the vehicle of quadric chain a lot, and bottom door bell mouth manufacture difficulty is very large, is the bottleneck that restriction hopper wagon is produced.Existing rail freight double leval jib bottom door bell mouth mechanism, as illustrated in fig. 1 and 2, primarily of underframe 1, catachomata 2, lower side wall 3, anachomata 4, lower headwall 5 and by catachomata 2, lower side wall 3, multiple bell mouths 6 that anachomata 4 forms form, the existing assemble method of the assemble method of above-mentioned rail freight double leval jib bottom door bell mouth mechanism guarantees single bell mouth 6 size and location, be specially: utilize simple fetal membrane, first assemble a bell mouth of rail freight double leval jib bottom door one end, after detecting single bell mouth size qualification with model, from one end to the other side assemble each bell mouth 6 successively again.Mainly there is following shortcoming in above-mentioned traditional manufacture method: two bell mouths 6 in same set of double leval jib bottom door bell mouth mechanism only ensure that the size of single bell mouth 6, do not ensure the relative position relation of mutual alignment relation between two relative bell mouths 6 and bell mouth 6 and track horizontal plane (datum level).Reduce the assembling quality of rail freight double leval jib bottom door bell mouth mechanism.Simultaneously because existing assembling form adopts simple fetal membrane to carry out assembling one by one to bell mouth, and whether each bell mouth 6 assemble and has all been needed by model detection package size qualified afterwards, reduces the packaging efficiency of rail freight double leval jib bottom door bell mouth mechanism.
Summary of the invention
The object of the invention is for above-mentioned technical problem, provide a kind of rail freight double leval jib bottom door bell mouth mechanism's mounting equipment and assemble method, this equipment and method can improve the lural assembly precision of rail freight double leval jib bottom door and packaging efficiency.
For realizing this object, rail freight double leval jib bottom door bell mouth mounting equipment designed by the present invention, comprise base plate, also comprise and be arranged on the vertical lateral locator of first on base plate, the first center filler, the first underframe binding clasp, first time headwall holding device, bell mouth module position device group, second time headwall holding device, the second underframe binding clasp, the second center filler, the second vertical lateral locator from front to back successively; The the first lower side wall anachomata being arranged on base plate side holds out against unit and the first lower side wall catachomata holds out against unit; The the second lower side wall anachomata being arranged on base plate opposite side holds out against unit and the second lower side wall catachomata holds out against unit; Wherein, described first lower side wall anachomata hold out against unit and the second lower side wall anachomata hold out against unit include multiple be arranged side by side first hold out against machine, first lower side wall catachomata hold out against unit and the second lower side wall catachomata hold out against unit include multiple be arranged side by side second hold out against machine, adjacent two first hold out against and arrange second between machine and hold out against machine.
Further, each bell mouth module position device of described bell mouth module position device group includes base and is arranged on the platform on base, and described base is provided with catachomata and holds out against screw mandrel, and described platform is provided with anachomata and holds out against screw mandrel.
Further, described first lower side wall anachomata holds out against unit and the second lower side wall anachomata and holds out against unit and be arranged symmetrically with relative to bell mouth module position device group, and the first lower side wall catachomata holds out against unit and the second lower side wall catachomata and holds out against unit and be arranged symmetrically with relative to bell mouth module position device group.
Further, the described first vertical lateral locator and the second vertical lateral locator are arranged symmetrically with relative to bell mouth module position device group; Described first center filler and the second center filler are arranged symmetrically with relative to bell mouth module position device group; Described first underframe binding clasp and the second underframe binding clasp are arranged symmetrically with relative to bell mouth module position device group; First time headwall holding device and second time headwall holding device are arranged symmetrically with relative to bell mouth module position device group.
Utilize above-mentioned rail freight double leval jib bottom door bell mouth mounting equipment to carry out a method for rail freight double leval jib bottom door bell mouth assembling, it is characterized in that, it comprises the steps:
Step 1: multiple catachomatas of rail freight double leval jib bottom door bell mouth mechanism are hung in bell mouth module position device group, the two ends of each catachomata are by the vertical support of base of two bell mouth module position devices adjacent in bell mouth module position device group;
Step 2: the lower headwall of rail freight double leval jib bottom door bell mouth mechanism is lain low on the platform hanging in bell mouth module position device group;
Step 3: the underframe of rail freight double leval jib bottom door bell mouth mechanism is hung in rail freight double leval jib bottom door bell mouth mechanism mounting equipment, and be vertical origin reference location by underframe with the first center filler and the second center filler by the first center filler and the second center filler, thus determine the vertical position of underframe; And by the first vertical lateral locator and the second vertical lateral locator, underframe is carried out longitudinal direction and located lateral; By the first underframe binding clasp and the second underframe binding clasp, underframe is fixed further simultaneously;
Step 4: hang in the corresponding anachomata installation portion of underframe by multiple anachomatas of rail freight double leval jib bottom door bell mouth mechanism, now, underframe carries out located lateral to each anachomata, meanwhile, carries out longitudinal and vertical location by platform to each anachomata;
Step 5: manually lower headwall is gone to heeling condition on platform, lower headwall is embedded lower headwall installation portion corresponding to underframe simultaneously, then by first time headwall holding device and second time headwall holding device, lower headwall is carried out horizontal and vertical location, utilize platform to carry out vertical location to lower headwall;
Step 6: two groups of lower side walls of rail freight double leval jib bottom door bell mouth mechanism are positioned at respectively the first lower side wall anachomata and hold out against the first location division of unit and the second lower side wall anachomata holds out against on the second location division of unit, open that the first lower side wall anachomata holds out against unit, the second lower side wall anachomata holds out against unit, the first lower side wall catachomata holds out against unit and the second lower side wall catachomata holds out against the reservoir of unit, each lower side wall is pushed underframe and fits tightly with corresponding anachomata and catachomata;
Step 7: the catachomata tightened on the base of adjacent two bell mouth module position devices holds out against screw mandrel, makes each catachomata longitudinal register, the anachomata tightened on the platform of each bell mouth module position device holds out against screw mandrel, makes each anachomata longitudinal register;
Step 8: by underframe and anachomata spot-welded together, by underframe and lower headwall spot-welded together, by lower side wall and anachomata spot-welded together, by lower side wall and catachomata spot-welded together, by lower side wall and lower headwall spot-welded together, by underframe and lower side wall spot-welded together, namely complete the assembling of whole rail freight double leval jib bottom door bell mouth mechanism.
Above-mentioned rail freight double leval jib bottom door bell mouth mounting equipment designed by the present invention and assemble method can not only ensure single lural fitted position, can also ensure the relative position relation of mutual alignment relation between two relative bell mouths and bell mouth and track horizontal plane (datum level).The present invention simultaneously can by shaping for the disposable assembly welding of rail freight double leval jib bottom door bell mouth, assembling mould is coordinated by multiple loose tools before, be modified into an integral type monolithic mold, improve assembling quality and the assembly precision of rail freight double leval jib bottom door bell mouth mechanism.All-in-one-piece mould can also improve the packaging efficiency of rail freight double leval jib bottom door bell mouth mechanism simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing rail freight double leval jib bottom door bell mouth mechanism;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the structural representation of environment division of the present invention;
Fig. 4 is the top view of Fig. 3;
Fig. 5 is that the A-A of Fig. 4 is to sectional structure schematic diagram;
Fig. 6 is the structural representation of the present invention when using.
1-underframe, 1.1-anachomata installation portion, headwall installation portion under 1.2-, 2-catachomata, 3-lower side wall, 4-anachomata, headwall under 5-, 6-bell mouth, 7-base plate, 8-first indulges lateral locator, 8.1-second indulges lateral locator, 9-first center filler, 9.1-second center filler, 10-first underframe binding clasp, 10.1-second underframe binding clasp, 11-first time headwall holding device, 11.1-second time headwall holding device, 12-bell mouth module position device group, 12.1-platform, 12.2-base, 12.3-catachomata holds out against screw mandrel, 12.4-anachomata holds out against screw mandrel, 13-first lower side wall anachomata holds out against unit, 13.1-the first location division, 14-second lower side wall anachomata holds out against unit, 14.1-the second location division, 15-first lower side wall catachomata holds out against unit, 16-second lower side wall catachomata holds out against unit, 17-first holds out against machine, 18-second holds out against machine.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail:
Rail freight double leval jib bottom door bell mouth mounting equipment as illustrated in figures 3-6, it comprises base plate 7, is arranged on vertical lateral locator 8, first center filler 9, first underframe binding clasp 10, the first time headwall holding device 11 of first on base plate 7, the vertical lateral locator 8.1 of bell mouth module position device group 12, second time headwall holding device 11.1, second underframe binding clasp 10.1, second center filler 9.1, second from front to back successively; The the first lower side wall anachomata being arranged on base plate 7 side holds out against unit 13 and the first lower side wall catachomata holds out against unit 15; The the second lower side wall anachomata being arranged on base plate 7 opposite side holds out against unit 14 and the second lower side wall catachomata holds out against unit 16; Wherein, described first lower side wall anachomata hold out against unit 13 and the second lower side wall anachomata hold out against unit 14 include multiple be arranged side by side first hold out against machine 17, first lower side wall catachomata hold out against unit 15 and the second lower side wall catachomata hold out against unit 16 include multiple be arranged side by side second hold out against machine 18, adjacent two first hold out against and arrange second between machine 17 and hold out against machine 18.The present invention ensures track horizontal plane (datum level) relative position relation of underframe 1 and vehicle operating by the first center filler 9 and the second center filler 9.1.
In technique scheme, the first vertical lateral locator 8 and the second vertical lateral locator 8.1 are for carrying out longitudinal direction and located lateral by underframe 1.First center filler 9 and the second center filler 9.1 are for ensureing track horizontal plane (datum level) relative position relation of underframe 1 and vehicle operating.First underframe binding clasp 10 and the second underframe binding clasp 10.1 are for further fixing underframe 1.First time headwall holding device 11 and second time headwall holding device 11.1 are for carrying out horizontal and vertical location to lower headwall 5.Bell mouth module position device group 12 for providing the longitudinal register of vertical support and catachomata 2 for catachomata 2, also for carrying out longitudinal and vertical location to anachomata 4, also for carrying out vertical location, also for the longitudinal register of anachomata 4 to lower headwall 5.First lower side wall anachomata holds out against unit 13, second lower side wall anachomata and holds out against unit 14, first lower side wall catachomata and hold out against unit 15 and the second lower side wall catachomata holds out against unit 16 for lower side wall 3 being pushed underframe 1 and fitting tightly with corresponding anachomata 4 and catachomata 2.
In technique scheme, each bell mouth module position device of bell mouth module position device group 12 includes base 12.2 and the platform 12.1 be arranged on base 12.2, described base 12.2 is provided with catachomata and holds out against screw mandrel 12.3, and described platform 12.1 is provided with anachomata and holds out against screw mandrel 12.4.
In technique scheme, described first lower side wall anachomata holds out against unit 13 and the second lower side wall anachomata and holds out against unit 14 and be arranged symmetrically with relative to bell mouth module position device group 12, and the first lower side wall catachomata holds out against unit 15 and the second lower side wall catachomata and holds out against unit 16 and be arranged symmetrically with relative to bell mouth module position device group 12.
In technique scheme, the described first vertical lateral locator 8 and the second vertical lateral locator 8.1 are arranged symmetrically with relative to bell mouth module position device group 12; Described first center filler 9 and the second center filler 9.1 are arranged symmetrically with relative to bell mouth module position device group 12; Described first underframe binding clasp 10 and the second underframe binding clasp 10.1 are arranged symmetrically with relative to bell mouth module position device group 12; First time headwall holding device 11 and second time headwall holding device 11.1 are arranged symmetrically with relative to bell mouth module position device group 12.
Underframe 1, catachomata 2, lower side wall 3, anachomata 4, lower headwall 5 can be carried out modular assembling by the said equipment, ensure that single bell mouth 6 size simultaneously, also assures that between same switching mechanism two bell mouth 6, each bell mouth and track horizontal plane (datum level) relative position relation.The present invention is owing to all adopting modularization assembling, and packaging efficiency, quality obtain larger lifting.
A method for rail freight double leval jib bottom door bell mouth assembling, it comprises the steps:
Step 1: multiple catachomatas 2 of rail freight double leval jib bottom door bell mouth mechanism are hung in bell mouth module position device group 12, the two ends of each catachomata 2 are by the vertical support of base 12.2 of two bell mouth module position devices adjacent in bell mouth module position device group 12;
Step 2: the lower headwall 5 of rail freight double leval jib bottom door bell mouth mechanism is lain low on the platform 12.1 hanging in bell mouth module position device group 12;
Step 3: the underframe 1 of rail freight double leval jib bottom door bell mouth mechanism is hung in rail freight double leval jib bottom door bell mouth mechanism mounting equipment, and be vertical origin reference location by underframe 1 with the first center filler 9 and the second center filler 9.1 by the first center filler 9 and the second center filler 9.1, thus determine the vertical position of underframe 1; And by the first vertical lateral locator 8 and the second vertical lateral locator 8.1, underframe 1 is carried out longitudinal direction and located lateral; By the first underframe binding clasp 10 and the second underframe binding clasp 10.1, underframe 1 is fixed further simultaneously;
Step 4: multiple anachomatas 4 of rail freight double leval jib bottom door bell mouth mechanism are hung in the corresponding anachomata installation portion 1.1 of underframe 1, now, underframe 1 carries out located lateral to each anachomata 4, meanwhile, carries out longitudinal and vertical location by platform 12.1 to each anachomata 4;
Step 5: manually lower headwall 5 is gone to heeling condition on platform 12.1, lower headwall 5 is embedded the lower headwall installation portion (1.2) of underframe 1 correspondence simultaneously, then by first time headwall holding device 11 and second time headwall holding device 11.1, lower headwall 5 is carried out horizontal and vertical location, utilize platform 12.1 to carry out vertical location to lower headwall 5;
Step 6: two groups of lower side walls 3 of rail freight double leval jib bottom door bell mouth mechanism are positioned at respectively the first lower side wall anachomata and hold out against the first location division 13.1 of unit 13 and the second lower side wall anachomata holds out against on the second location division 14.1 of unit 14, open the first lower side wall anachomata to hold out against unit 13, second lower side wall anachomata and hold out against unit 14, first lower side wall catachomata and hold out against the reservoir that unit 15 and the second lower side wall catachomata hold out against unit 16, each lower side wall 3 is pushed underframe 1 and fits tightly with corresponding anachomata 4 and catachomata 2;
Step 7: the catachomata tightened on the base 12.2 of adjacent two bell mouth module position devices holds out against screw mandrel 12.3, make each catachomata 2 longitudinal register, the anachomata tightened on the platform 12.1 of each bell mouth module position device holds out against screw mandrel 12.4, makes each anachomata 4 longitudinal register;
Step 8: by underframe 1 and anachomata 4 spot-welded together, by underframe 1 and lower headwall 5 spot-welded together, by lower side wall 3 and anachomata 4 spot-welded together, by lower side wall 3 and catachomata 2 spot-welded together, by lower side wall 3 and lower headwall 5 spot-welded together, by underframe 1 and lower side wall 3 spot-welded together, namely complete the assembling of whole rail freight double leval jib bottom door bell mouth mechanism.
In technique scheme, the length direction of underframe 1 is longitudinally, and width is laterally.
The content that this description is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (5)
1. a rail freight double leval jib bottom door bell mouth mechanism mounting equipment, comprise base plate (7), it is characterized in that: also comprise and be arranged on the vertical lateral locator (8) of first on base plate (7), the first center filler (9), the first underframe binding clasp (10), first time headwall holding device (11), bell mouth module position device group (12), second time headwall holding device (11.1), the second underframe binding clasp (10.1), the second center filler (9.1), the second vertical lateral locator (8.1) from front to back successively; The the first lower side wall anachomata being arranged on base plate (7) side holds out against unit (13) and the first lower side wall catachomata holds out against unit (15); The the second lower side wall anachomata being arranged on base plate (7) opposite side holds out against unit (14) and the second lower side wall catachomata holds out against unit (16); Wherein, described first lower side wall anachomata hold out against unit (13) and the second lower side wall anachomata hold out against unit (14) include multiple be arranged side by side first hold out against machine (17), first lower side wall catachomata hold out against unit (15) and the second lower side wall catachomata hold out against unit (16) include multiple be arranged side by side second hold out against machine (18), adjacent two first hold out against and arrange second between machine (17) and hold out against machine (18).
2. rail freight double leval jib bottom door bell mouth mechanism according to claim 1 mounting equipment, it is characterized in that: each bell mouth module position device of described bell mouth module position device group (12) includes base (12.2) and is arranged on the platform (12.1) on base (12.2), described base (12.2) is provided with catachomata and holds out against screw mandrel (12.3), and described platform (12.1) is provided with anachomata and holds out against screw mandrel (12.4).
3. rail freight double leval jib bottom door bell mouth mechanism according to claim 1 mounting equipment, it is characterized in that: described first lower side wall anachomata holds out against unit (13) and the second lower side wall anachomata and holds out against unit (14) and be arranged symmetrically with relative to bell mouth module position device group (12), the first lower side wall catachomata holds out against unit (15) and the second lower side wall catachomata and holds out against unit (16) and be arranged symmetrically with relative to bell mouth module position device group (12).
4. rail freight double leval jib bottom door bell mouth mechanism according to claim 1 mounting equipment, is characterized in that: the described first vertical lateral locator (8) is arranged symmetrically with relative to bell mouth module position device group (12) with the second vertical lateral locator (8.1); Described first center filler (9) and the second center filler (9.1) are arranged symmetrically with relative to bell mouth module position device group (12); Described first underframe binding clasp (10) and the second underframe binding clasp (10.1) are arranged symmetrically with relative to bell mouth module position device group (12); First time headwall holding device (11) is arranged symmetrically with relative to bell mouth module position device group (12) with second time headwall holding device (11.1).
5. utilize the rail freight double leval jib bottom door bell mouth mechanism mounting equipment described in claim 2 to carry out a method for rail freight double leval jib bottom door bell mouth mechanism assembling, it is characterized in that, it comprises the steps:
Step 1: multiple catachomatas (2) of rail freight double leval jib bottom door bell mouth mechanism are hung in bell mouth module position device group (12), the two ends of each catachomata (2) are by base (12.2) the vertical support of two bell mouth module position devices adjacent in bell mouth module position device group (12);
Step 2: the lower headwall (5) of rail freight double leval jib bottom door bell mouth mechanism is lain low and hangs on the platform (12.1) of bell mouth module position device group (12);
Step 3: the underframe (1) of rail freight double leval jib bottom door bell mouth mechanism is hung in rail freight double leval jib bottom door bell mouth mechanism mounting equipment, and by the first center filler (9) and the second center filler (9.1) by underframe (1) with the first center filler (9) and the second center filler (9.1) for vertical origin reference location, thus determine the vertical position of underframe (1); And by the first vertical lateral locator (8) and the second vertical lateral locator (8.1), underframe (1) is carried out longitudinal direction and located lateral; By the first underframe binding clasp (10) and the second underframe binding clasp (10.1), underframe (1) is fixed further simultaneously;
Step 4: multiple anachomatas (4) of rail freight double leval jib bottom door bell mouth mechanism are hung in the corresponding anachomata installation portion (1.1) of underframe (1), now, underframe (1) carries out located lateral to each anachomata (4), meanwhile, by platform (12.1), longitudinal and vertical location is carried out to each anachomata (4);
Step 5: manually lower headwall (5) is gone to heeling condition on platform (12.1), lower headwall (5) is embedded lower headwall installation portion (1.2) corresponding to underframe (1) simultaneously, then by first time headwall holding device (11) and second time headwall holding device (11.1), lower headwall (5) is carried out horizontal and vertical location, utilize platform (12.1) to carry out vertical location to lower headwall (5);
Step 6: two groups of lower side walls (3) of rail freight double leval jib bottom door bell mouth mechanism are positioned at respectively the first lower side wall anachomata and hold out against first location division (13.1) of unit (13) and the second lower side wall anachomata holds out against on second location division (14.1) of unit (14), open the first lower side wall anachomata and hold out against unit (13), second lower side wall anachomata holds out against unit (14), first lower side wall catachomata holds out against the reservoir that unit (15) and the second lower side wall catachomata hold out against unit (16), each lower side wall (3) is pushed underframe (1) and fits tightly with corresponding anachomata (4) and catachomata (2),
Step 7: the catachomata tightened on the base (12.2) of adjacent two bell mouth module position devices holds out against screw mandrel (12.3), make each catachomata (2) longitudinal register, the anachomata tightened on the platform (12.1) of each bell mouth module position device holds out against screw mandrel (12.4), makes each anachomata (4) longitudinal register;
Step 8: by underframe (1) and anachomata (4) spot-welded together, by underframe (1) and lower headwall (5) spot-welded together, by lower side wall (3) and anachomata (4) spot-welded together, by lower side wall (3) and catachomata (2) spot-welded together, by lower side wall (3) and lower headwall (5) spot-welded together, by underframe (1) and lower side wall (3) spot-welded together, namely complete the assembling of whole rail freight double leval jib bottom door bell mouth mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310638644.9A CN103639696B (en) | 2013-11-29 | 2013-11-29 | Rail freight double leval jib bottom door bell mouth mechanism's mounting equipment and assemble method |
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| CN201310638644.9A CN103639696B (en) | 2013-11-29 | 2013-11-29 | Rail freight double leval jib bottom door bell mouth mechanism's mounting equipment and assemble method |
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| CN103639696B true CN103639696B (en) | 2016-02-03 |
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| CN109909735B (en) * | 2017-12-12 | 2021-06-01 | 中车齐齐哈尔车辆有限公司 | Assembling device and method for hopper car bottom door opening and closing mechanism |
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| CN102390014A (en) * | 2011-08-11 | 2012-03-28 | 齐齐哈尔轨道交通装备有限责任公司 | Assembling method for centre sill and body bolster of underframe of railway wagon |
| CN202804547U (en) * | 2012-09-29 | 2013-03-20 | 南车石家庄车辆有限公司 | Chassis assembling welding tool for stone frantic jumble hopper car |
| CN203566228U (en) * | 2013-11-29 | 2014-04-30 | 南车长江车辆有限公司 | Equipment for assembling railway freight four-bar linkage bottom door hopper opening mechanism |
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| Publication number | Publication date |
|---|---|
| CN103639696A (en) | 2014-03-19 |
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Address after: 430212 new bridge area, Jiangxia Economic Development Zone, Wuhan, Hubei Patentee after: CRRC Yangtze Co.,Ltd. Address before: 430212 new bridge area, Jiangxia Economic Development Zone, Wuhan, Hubei Patentee before: CSR Yangtze Co.,Ltd. |
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Effective date of registration: 20200424 Address after: Song Jia Qiao Zhuzhou Hetang District of Hunan Province in 412003 Patentee after: CRRC Zhuzhou Vehicle Co.,Ltd. Address before: 430212 new bridge area, Jiangxia Economic Development Zone, Wuhan, Hubei Patentee before: CRRC Yangtze Co.,Ltd. |