CN103603700A - Engine timing system assembly method - Google Patents
Engine timing system assembly method Download PDFInfo
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- CN103603700A CN103603700A CN201310543887.4A CN201310543887A CN103603700A CN 103603700 A CN103603700 A CN 103603700A CN 201310543887 A CN201310543887 A CN 201310543887A CN 103603700 A CN103603700 A CN 103603700A
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- camshaft
- timing
- pulley
- positioning hole
- assembly method
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Abstract
The invention discloses an engine timing system assembly method and belongs to the field of automobiles. According to the method, on the basis of the traditional engine timing system assembly method, after primary timing, a crankshaft and a camshaft are rotated by corresponding degrees for secondary timing, all pistons of an engine are kept equally high in a cylinder, and final installation and commissioning of a timing belt is performed after fixation. Through the application method, the risk that the engine pistons hit a valve during installation and commissioning of the engine timing system is eliminated.
Description
Technical field
The present invention relates to a kind of assembly method, particularly a kind of engine timing is system assembly method, and it belongs to automotive field.
Background technique
Engine timing system need to guarantee that in assembling valve can open and close in the correct time, therefore need to guarantee accuracy when timing system is installed.Traditional assembling mode is in to timing, crankshaft rotating is to a cylinder top dead center, piston movement is to the top dead center of cylinder block like this, camshaft is rotated to valve simultaneously and be compressed into fully open position, and at positioning hole, crank pulley and camshaft pulley are fixed on to above-mentioned two positions by bolt, and complete the installation of whole timing system.Timing is after belt has assembled like this, in order to check running whether normal, can be rotated counterclockwise bent axle, is now easy to produce the risk of piston and valve collision, causes valve to damage.
The open book publication number 101545384 of Chinese patent discloses a kind of assembly method of timing system of motor, by locating point being set on timing chain and timing sprocket, carry out timing aligning, thereby complete installation, can guarantee like this accuracy of installing, but still not solve the problem that engine piston clashes into valve possibility.
Summary of the invention
It is system assembly method that technical problem to be solved by this invention is to provide a kind of engine timing that can avoid piston to hit valve.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of engine timing is system assembly method, it is characterized in that comprising following steps:
A, first by timing, be that various parts assembles on motor, then by crankshaft rotating to a cylinder top dead center, camshaft is rotated to valve simultaneously and is compressed into fully open position;
B, by crank pulley dextrorotation gyration 2a, make the piston in each cylinder of motor be positioned at sustained height, angle 2a is by calculating, and bent axle and crank pulley relative position are fixed; By camshaft pulley dextrorotation gyration a, and camshaft and cam pulleys relative position are fixed;
C, load onto Timing Belt, automatic tensioner is adjusted to relevant position and tighten the bolt of automatic tensioner, then take out the latch of fixed crankshaft belt pulley and camshaft pulley, by timing system 2 circles that turn clockwise, make Timing Belt stressed evenly.
Further, described in step B, bent axle and crank pulley relative position means of fixation are: on bent axle, drive the first positioning hole, on crank pulley, drive the second positioning hole, described the first positioning hole and the second positioning hole just overlap after bent axle and crank pulley carry out timing aligning and dextrorotation gyration 2a, and fix by latch.
Further, described in step B, camshaft and camshaft pulley relative position means of fixation are: on camshaft, drive the 3rd positioning hole, in camshaft pulley, drive the 4th positioning hole, described the 3rd positioning hole and the 4th positioning hole just overlap after camshaft and camshaft pulley are carried out timing aligning and dextrorotation gyration a, and fix by latch.
The present invention compared with prior art, have the following advantages and effect: engine timing is that system assembly method passes through when installing, after to complete timing, by rotary crankshaft and camshaft, make the piston of motor all be positioned at sustained height and carry out secondary timing again, and then carry out the installation of Timing Belt, avoided like this piston to hit the risk of valve.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of engine timing system of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail by embodiment, and following examples are explanation of the invention and the present invention is not limited to following examples.
As shown in Figure 1, engine timing system of the present invention be take four cylinder engine as example, and engine timing system comprises camshaft pulley 1, automatic tensioner 2, oil pump belt pulley 3, idle pulley 4, crank pulley 5, water pump pulley 6, high pressure oil pump belt pulley 7.
Four cylinder engine timing system is in assembling:
A, first the camshaft pulley of timing system 1, automatic tensioner 2, oil pump belt pulley 3, idle pulley 4, crank pulley 5, water pump pulley 6, high pressure oil pump belt pulley 7 each position on motor is assembled, then by crankshaft rotating to a cylinder top dead center, camshaft is rotated to valve simultaneously and is compressed into fully open position.
B, crank pulley 5 dextrorotations are turn 90 degrees, due to the top dead center position in cylinder originally of the piston in a cylinder, after rotating like this 90 degree, piston in 4 cylinders of motor is positioned at sustained height, so just the distance between each piston and valve is zoomed out, thereby guarantee that piston can not bump with valve.On bent axle, drive the first positioning hole, drive the second positioning hole on crank pulley 5, the first positioning hole and the second positioning hole carry out after timing aligning and dextrorotation turn 90 degrees just overlapping at bent axle and crank pulley 5, and fix by latch.By camshaft pulley 1 45 degree that turn clockwise, and on camshaft, drive the 3rd positioning hole, in camshaft pulley 1, drive the 4th positioning hole, the 3rd positioning hole and the 4th positioning hole camshaft and camshaft pulley 1 is carried out timing aligning and 45 degree that turn clockwise after just overlap, and fix by latch.
C, load onto Timing Belt, automatic tensioner 2 is adjusted to relevant position and tighten the bolt of automatic tensioner 2, then take out the latch of fixed crankshaft belt pulley 5 and camshaft pulley 1, by timing system 2 circles that turn clockwise, make Timing Belt stressed evenly, thereby complete the assembling and setting of whole engine timing system.
Adopt technique scheme, engine timing of the present invention is that system assembly method is assembling mode by changing traditional timing, after traditional timing, carry out secondary timing, the piston of motor is all adjusted to sustained height, and then fixed installation Timing Belt, thereby avoided the risk that piston hits valve in check belt state.
Above content described in this specification is only made for the present invention illustrating.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment; only otherwise depart from the content of specification of the present invention or surmount this scope as defined in the claims, all should belong to protection scope of the present invention.
Claims (3)
1. engine timing is a system assembly method, it is characterized in that comprising following steps:
First by timing, be that various parts assembles on motor, then by crankshaft rotating to a cylinder top dead center, camshaft is rotated to valve simultaneously and is compressed into fully open position;
By crank pulley dextrorotation gyration 2a, make the piston in each cylinder of motor be positioned at sustained height, angle 2a is by calculating, and bent axle and crank pulley relative position are fixed; By camshaft pulley dextrorotation gyration a, and camshaft and cam pulleys relative position are fixed;
Load onto Timing Belt, automatic tensioner is adjusted to relevant position and tighten the bolt of automatic tensioner, then take out the latch of fixed crankshaft belt pulley and camshaft pulley, by timing system 2 circles that turn clockwise, make Timing Belt stressed evenly.
2. engine timing according to claim 1 is system assembly method, it is characterized in that: described in step B, bent axle and crank pulley relative position means of fixation are: on bent axle, drive the first positioning hole, on crank pulley, drive the second positioning hole, described the first positioning hole and the second positioning hole just overlap after bent axle and crank pulley carry out timing aligning and dextrorotation gyration 2a, and fix by latch.
3. engine timing according to claim 1 is system assembly method, it is characterized in that: described in step B, camshaft and camshaft pulley relative position means of fixation are: on camshaft, drive the 3rd positioning hole, in camshaft pulley, drive the 4th positioning hole, described the 3rd positioning hole and the 4th positioning hole just overlap after camshaft and camshaft pulley are carried out timing aligning and dextrorotation gyration a, and fix by latch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543887.4A CN103603700B (en) | 2013-11-06 | 2013-11-06 | Engine timing system system assembly method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543887.4A CN103603700B (en) | 2013-11-06 | 2013-11-06 | Engine timing system system assembly method |
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| CN103603700A true CN103603700A (en) | 2014-02-26 |
| CN103603700B CN103603700B (en) | 2015-12-30 |
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| CN201310543887.4A Active CN103603700B (en) | 2013-11-06 | 2013-11-06 | Engine timing system system assembly method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4744338A (en) * | 1987-02-24 | 1988-05-17 | Allied Corporation | Variable camshaft timing system |
| JPS63140807A (en) * | 1986-12-04 | 1988-06-13 | Yamaha Motor Co Ltd | Valve opening timing adjuster for engine |
| JP2610121B2 (en) * | 1985-05-14 | 1997-05-14 | ヤマハ発動機株式会社 | Valve timing control device for internal combustion engine |
| CN1936281A (en) * | 2005-09-20 | 2007-03-28 | 奇瑞汽车有限公司 | Engine correct-timing drive system mounting method and positioning tool |
| CN201013470Y (en) * | 2007-02-14 | 2008-01-30 | 张绍翔 | Energy-saving pressure boost piston for minicar |
| CN101545384A (en) * | 2008-03-24 | 2009-09-30 | 马自达汽车株式会社 | Assembling method for timing system of engine |
| CN201461019U (en) * | 2009-05-25 | 2010-05-12 | 姚勇 | Breaking alarm of timing belt of automobile |
| US7866292B2 (en) * | 2008-03-26 | 2011-01-11 | AES Industries Inc | Apparatus and methods for continuous variable valve timing |
-
2013
- 2013-11-06 CN CN201310543887.4A patent/CN103603700B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2610121B2 (en) * | 1985-05-14 | 1997-05-14 | ヤマハ発動機株式会社 | Valve timing control device for internal combustion engine |
| JPS63140807A (en) * | 1986-12-04 | 1988-06-13 | Yamaha Motor Co Ltd | Valve opening timing adjuster for engine |
| US4744338A (en) * | 1987-02-24 | 1988-05-17 | Allied Corporation | Variable camshaft timing system |
| CN1936281A (en) * | 2005-09-20 | 2007-03-28 | 奇瑞汽车有限公司 | Engine correct-timing drive system mounting method and positioning tool |
| CN201013470Y (en) * | 2007-02-14 | 2008-01-30 | 张绍翔 | Energy-saving pressure boost piston for minicar |
| CN101545384A (en) * | 2008-03-24 | 2009-09-30 | 马自达汽车株式会社 | Assembling method for timing system of engine |
| US7866292B2 (en) * | 2008-03-26 | 2011-01-11 | AES Industries Inc | Apparatus and methods for continuous variable valve timing |
| CN201461019U (en) * | 2009-05-25 | 2010-05-12 | 姚勇 | Breaking alarm of timing belt of automobile |
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| CN103603700B (en) | 2015-12-30 |
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Address after: 314500, Tongren Road, Jiaxing, Tongxiang, Zhejiang, 468 Applicant after: ZHEJIANG DAIDE POWER MACHINERY CO., LTD. Address before: 314500, Tongren Road, Jiaxing, Tongxiang, Zhejiang, 468 Applicant before: ZHEJIANG GONOW POWER MACHINERY CO., LTD. |
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Free format text: CORRECT: APPLICANT; FROM: ZHEJIANG GONOW POWER MACHINERY CO., LTD. TO: ZHEJIANG DAIDE POWER MACHINERY CO., LTD. |
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Address after: 314500 468 Tong Tong Road, Wutong street, Tongxiang, Jiaxing, Zhejiang Patentee after: Zhejiang Dade longcui RV Technology Co.,Ltd. Address before: 314500 468 Tong Tong Road, Wutong street, Tongxiang, Jiaxing, Zhejiang Patentee before: ZHEJIANG DAIDE POWER MACHINERY Co.,Ltd. |
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