CA2527893A1 - Dynamic blade distance ratio system and method - Google Patents
Dynamic blade distance ratio system and method Download PDFInfo
- Publication number
- CA2527893A1 CA2527893A1 CA002527893A CA2527893A CA2527893A1 CA 2527893 A1 CA2527893 A1 CA 2527893A1 CA 002527893 A CA002527893 A CA 002527893A CA 2527893 A CA2527893 A CA 2527893A CA 2527893 A1 CA2527893 A1 CA 2527893A1
- Authority
- CA
- Canada
- Prior art keywords
- track
- valve
- roller
- load
- hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/02—Travelling-gear, e.g. associated with slewing gears
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0841—Articulated frame, i.e. having at least one pivot point between two travelling gear units
Abstract
The blade ratio of an articulated work vehicle with multiple tracks is adjusted by shifting a load from the weight of the vehicle toward the front or rear of one or more of the tracks. The load may be shifted through the actuation of a hydraulic cylinder that applies a biasing load between a frame on which a track frame is mounted and a front or rear portion of the track frame.
Claims (17)
1. A track system for a multi-track work vehicle, comprising:
a track having a first side and a second side;
a first idle roller engaging the first side of the track;
a second idle roller engaging the first side of the track;
a drive wheel engaging the first side of the track, the second side of the track engaging the ground between at least two of the first idle roller, the second idle roller and the drive wheel; and an actuator, the actuator shifting a load from a weight of the vehicle toward at least one of the first and second idle rollers when the actuator is activated.
a track having a first side and a second side;
a first idle roller engaging the first side of the track;
a second idle roller engaging the first side of the track;
a drive wheel engaging the first side of the track, the second side of the track engaging the ground between at least two of the first idle roller, the second idle roller and the drive wheel; and an actuator, the actuator shifting a load from a weight of the vehicle toward at least one of the first and second idle rollers when the actuator is activated.
2. The track system of claim 1, wherein the actuator comprises a biasing hydraulic cylinder.
3. The track system of claim 2, further comprising a hydraulic circuit, the hydraulic circuit including a hydraulic pump, a pressure reducing valve having a first valve position and a second valve position, a pressure relief valve, an accumulator, a controller and a switch control, the switch control having a first switch position and a second switch position, the hydraulic circuit controlling the hydraulic cylinder by controlling a flow of pressurized hydraulic fluid to the biasing hydraulic cylinder.
4. The track system of claim 3, wherein the actuator is activated when the hydraulic circuit allows the pressurized hydraulic fluid to flow to the biasing hydraulic cylinder.
5. The track system of claim 4, wherein the second switch position causes the pressure reducing valve to move to the second valve position and allow the pressurized hydraulic fluid to flow to the hydraulic cylinder.
6. The track system of claim 5, wherein the controller causes the pressure reducing valve to move to the second valve position.
7. The track system of claim 3, wherein the first switch position allows the displacement valve to move to the first valve position and prevent the flow of pressurized hydraulic fluid to the hydraulic cylinder.
8. The track system of claim 3, wherein a pressure across the pressure relief valve is adjusted by the controller.
9. The track system of claim 8, wherein a pressure delivered to the hydraulic cylinder is controlled by the pressure relief valve and a preload on the accumulator.
The track system of claim 9, wherein a preload comprises a pre-charge.
11. A pivotable track system for a multi-track work vehicle, comprising:
a track assembly, including:
a track, a track frame, a first main idle roller engaging a first side of the track and pivotally attached to the tension link, a second main idle roller engaging the first side of the track and pivotally attached to the track frame, at least one minor idle roller engaging the first side of the track and pivotally attached to the track frame, a drive wheel engaging the first side of the track, a mounting frame, the track frame pivotally mounted to the mounting frame, the drive wheel pivotally mounted to the mounting frame, and a biasing cylinder, the biasing cylinder pivotally mounted to the mounting frame, the biasing cylinder pivotally mounted to the track frame, the biasing cylinder arranged to cause a load from a weight of the vehicle to shift toward the first main idle roller when the biasing cylinder is actuated; and a hydraulic circuit, including:
a hydraulic pump;
a load sense actuating valve;
a check valve;
a pressure reducing valve having at least two positions;
a pressure relief valve;
a first accumulator;
a second accumulator;
a controller;
a control switch having a first switch position and a second switch position; and a fluid reservoir, the load sense actuating valve in communication with the hydraulic pump, the first accumulator and the pressure reducing valve, the check valve in communication with the hydraulic pump and the pressure reducing valve, the pressure reducing valve in communication with the second accumulator, the pressure relief valve and the biasing cylinder, the controller adjusting a position of the pressure reducing valve, the controller adjusting pressure a reducing setting of the pressure reducing valve and the pressure relief setting of the pressure relief valve.
a track assembly, including:
a track, a track frame, a first main idle roller engaging a first side of the track and pivotally attached to the tension link, a second main idle roller engaging the first side of the track and pivotally attached to the track frame, at least one minor idle roller engaging the first side of the track and pivotally attached to the track frame, a drive wheel engaging the first side of the track, a mounting frame, the track frame pivotally mounted to the mounting frame, the drive wheel pivotally mounted to the mounting frame, and a biasing cylinder, the biasing cylinder pivotally mounted to the mounting frame, the biasing cylinder pivotally mounted to the track frame, the biasing cylinder arranged to cause a load from a weight of the vehicle to shift toward the first main idle roller when the biasing cylinder is actuated; and a hydraulic circuit, including:
a hydraulic pump;
a load sense actuating valve;
a check valve;
a pressure reducing valve having at least two positions;
a pressure relief valve;
a first accumulator;
a second accumulator;
a controller;
a control switch having a first switch position and a second switch position; and a fluid reservoir, the load sense actuating valve in communication with the hydraulic pump, the first accumulator and the pressure reducing valve, the check valve in communication with the hydraulic pump and the pressure reducing valve, the pressure reducing valve in communication with the second accumulator, the pressure relief valve and the biasing cylinder, the controller adjusting a position of the pressure reducing valve, the controller adjusting pressure a reducing setting of the pressure reducing valve and the pressure relief setting of the pressure relief valve.
12. A method of changing a blade distance ratio in an articulated vehicle having a blade and a plurality of track assemblies, at least one of the plurality of track assemblies having a first roller and a second roller, the first roller and the second roller bearing a portion of a weight of the vehicle, the first roller being closer to the blade than the second roller, the method comprising:
shifting a load from the weight of the vehicle toward one of the first roller and the second roller.
shifting a load from the weight of the vehicle toward one of the first roller and the second roller.
13. The method of claim 12, wherein shifting the load comprises actuating a hydraulic cylinder.
14. A method of changing a blade distance ratio in an articulated vehicle having a blade and a plurality of track assemblies, at least one of the plurality of track assemblies having a front portion and a rear portion, the front portion and the rear portion bearing a load of a weight of the vehicle, the front portion being closer to the blade than the rear portion, the method comprising:
shifting the load from the weight of the vehicle toward one of the front portion and the rear portion.
shifting the load from the weight of the vehicle toward one of the front portion and the rear portion.
15. The method of claim 14, wherein shifting the load comprises actuating a hydraulic cylinder.
16. The method of claim 14, wherein the plurality of track assemblies comprises four track assemblies and the at least one of the plurality of track assemblies comprises two of the plurality of track assemblies.
17. The method of claim 16, wherein the two of the plurality of track assemblies are closer to the blade than a remainder of the plurality of track assemblies.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63156304P | 2004-11-29 | 2004-11-29 | |
| US60/631,563 | 2004-11-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2527893A1 true CA2527893A1 (en) | 2006-05-29 |
| CA2527893C CA2527893C (en) | 2010-11-16 |
Family
ID=36565957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2527893A Expired - Fee Related CA2527893C (en) | 2004-11-29 | 2005-11-25 | Dynamic blade distance ratio system and method |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7641007B2 (en) |
| AU (1) | AU2005239647B2 (en) |
| CA (1) | CA2527893C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010323B (en) * | 2012-10-10 | 2015-05-13 | 湖南云马华盛汽车科技有限公司 | Traveling wheel system and sugarcane harvester |
| US9648992B2 (en) | 2013-12-19 | 2017-05-16 | Gojo Industries, Inc. | Pumps with vents to vent inverted containers and refill units having non-collapsing containers |
| US10160590B2 (en) | 2014-02-24 | 2018-12-25 | Gojo Industries, Inc. | Vented non-collapsing containers, dispensers and refill units having vented non-collapsing containers |
| US10220895B2 (en) | 2016-03-21 | 2019-03-05 | Ariens Company | Snow thrower track drive |
| US10238240B2 (en) | 2016-06-07 | 2019-03-26 | Gojo Industries, Inc. | Uptake shroud for inverted pumps |
| CN109398517A (en) * | 2018-12-29 | 2019-03-01 | 合肥多加农业科技有限公司 | A kind of leg structure and the agricultural machinery using this leg structure |
| US11358430B2 (en) | 2020-06-16 | 2022-06-14 | Deere & Company | Suspension system with variable roll resistance |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3182741A (en) * | 1964-02-26 | 1965-05-11 | Charles D Roach | On-road, off-road track carrying vehicle |
| DE2110200C3 (en) | 1971-03-03 | 1974-01-31 | Maschinenbau Ulm Gmbh, 7900 Ulm | Grader |
| US3677427A (en) * | 1971-04-23 | 1972-07-18 | Caterpillar Tractor Co | Stabilizing strut for tracked loader |
| IL37217A (en) | 1971-07-04 | 1975-04-25 | Technion Res & Dev Foundation | Tractor-mounted grader-leveler |
| US3899028A (en) | 1972-03-30 | 1975-08-12 | Systron Donner Corp | Angular position sensing and control system, apparatus and method |
| US3974699A (en) | 1973-08-28 | 1976-08-17 | Systron Donner Corporation | Angular position sensing and control system, apparatus and method |
| US3986563A (en) | 1975-05-01 | 1976-10-19 | Deere & Company | Suspension and control linkage for a grade blade support frame |
| US4041623A (en) * | 1975-09-22 | 1977-08-16 | Miller Formless Co., Inc. | Grade cutting machine |
| US4053017A (en) | 1975-11-07 | 1977-10-11 | Westinghouse Air Brake Company | Cross slope contact system for surface finishing machines |
| US4061194A (en) | 1976-03-04 | 1977-12-06 | Hesston Corporation | Tractor mounted scraper blade |
| FR2368584A1 (en) | 1976-10-23 | 1978-05-19 | Frisch Sarl | LEVELING VEHICLE |
| US4088236A (en) | 1977-06-17 | 1978-05-09 | B. B. And M. Inc. | Multiple use earth working machine |
| WO1980001668A1 (en) | 1979-02-08 | 1980-08-21 | D Larson | Overspeed control for a vehicle drive system |
| SE459017B (en) | 1984-05-18 | 1989-05-29 | Vreten Ab | ADDITIONAL TOOLS FOR WHEEL LOADERS AND SIMILAR MACHINES |
| US4696350A (en) | 1985-09-25 | 1987-09-29 | Deere & Company | Motor grader with saddle mounted to transverse pin on main frame |
| US4807461A (en) | 1986-01-21 | 1989-02-28 | Deere & Company | Motor grader main frame |
| US5074061A (en) | 1991-03-20 | 1991-12-24 | Thompson Warren H | Land arranger |
| US5762446A (en) | 1994-01-07 | 1998-06-09 | Manatts Inc. | Methods & means for on-roadway recycling of pavement and recovering steels therefrom |
| US5549412A (en) | 1995-05-24 | 1996-08-27 | Blaw-Knox Construction Equipment Corporation | Position referencing, measuring and paving method and apparatus for a profiler and paver |
| CN1203645A (en) | 1995-10-13 | 1998-12-30 | 土地压实技术有限公司 | Soil levelling device |
| US5775438A (en) | 1997-06-11 | 1998-07-07 | Confoey; Richard J. | Earth working scraper apparatus |
| US6164399A (en) * | 1999-06-02 | 2000-12-26 | Sercel, Inc. | Track-type carriage system for heavy vehicles |
| US6322287B1 (en) | 2000-04-10 | 2001-11-27 | James E. Yelton | Aggregate grading machine |
| CA2346574C (en) | 2001-05-07 | 2008-11-04 | Tri-Track International Ltd. | Snow or soil grader |
-
2005
- 2005-11-23 US US11/286,726 patent/US7641007B2/en not_active Expired - Fee Related
- 2005-11-25 CA CA2527893A patent/CA2527893C/en not_active Expired - Fee Related
- 2005-11-29 AU AU2005239647A patent/AU2005239647B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US7641007B2 (en) | 2010-01-05 |
| AU2005239647A1 (en) | 2006-06-15 |
| CA2527893C (en) | 2010-11-16 |
| US20060124329A1 (en) | 2006-06-15 |
| AU2005239647B2 (en) | 2012-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20171127 |