CN202174937U - Crawler-type double-car-body hydraulic transmission travelling system - Google Patents
Crawler-type double-car-body hydraulic transmission travelling system Download PDFInfo
- Publication number
- CN202174937U CN202174937U CN 201120270386 CN201120270386U CN202174937U CN 202174937 U CN202174937 U CN 202174937U CN 201120270386 CN201120270386 CN 201120270386 CN 201120270386 U CN201120270386 U CN 201120270386U CN 202174937 U CN202174937 U CN 202174937U
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- pump
- motor
- controller
- crawler
- pressure sensor
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Abstract
The utility model discloses a crawler-type double-car-body hydraulic transmission travelling system, belonging to a crawler-type engineering truck travelling system. The utility model aims at providing a crawler-type double-car-bod travelling system which is flexible in mechanism and strong in obstacle-climbing capability. The crawler-type double-car-body hydraulic transmission travelling system comprises a front driving system, a rear driving system, a central processing unit and a travelling controller, wherein the front driving system (1) is composed of a front pump (2), a front pump delivery controller (17), a front pump pressure sensor (18), a left front motor (3), a right front motor (4), a front revolution speed sensor (5) and a front motor delivery controller (6); the rear driving system (13) is composed of a rear pump (16), a rear pump delivery controller (14), a rear pump pressure sensor (15), a left rear motor (12), a right rear motor (11), a rear revolution speed sensor (10) and a rear motor delivery controller (9); and the front pump (2) is connected with the rear pump (16) by a key and a transfer case of an engine. The crawler-type double-car-body hydraulic transmission travelling system is suitable for special type engineering trucks such as a crawler-type all-terrain vehicle and the like.
Description
Technical field: the utility model relates to a kind of tracked engineering vehicle running gear, relates in particular to the two car body hydrostatic drive running gears of a kind of crawler type.
Background technology: the crawler type two-body bicycle is a kind of extraordinary cross-country engineering truck of high speed that is specifically designed to landform such as mountain region, snowfield, marsh, river shoal, desert, gully.Because the operating environment of this car is very complicated, abominable, thereby requires it must have flexible preferably property and powerful obstacle climbing ability.At present; Caterpillar engineering vehicles adopts the open hydrostatic transmission system that is driven HM Hydraulic Motor by Hydraulic Pump mostly; Maneuvering performancies such as not only moving velocity lower (having only 5 kilometers/hour usually), and Vehicular turn are relatively poor, can not satisfy the needs of crawler type binary cross-country car far away.
Summary of the invention: to the above-mentioned defective that exists in the prior art, the utility model aims to provide a kind of two car body hydrostatic drive running gears of crawler type that can improve the flexible property of vehicle, strengthen the vehicle obstacle climbing ability.
To achieve these goals, the utility model adopts following technical scheme: it comprises front drive system, rear drive system, central process unit and the traveling controller that is electrically connected with it; Left front motor that front drive system is communicated with front pump by front pump, the preceding pump capacity controller that is located at this front pump pumping hole place and preceding pump pressure sensor, parallel connection back and right front motor, the preceding tachogen and the preceding motor displacement controller that are located at left front motor and right front motor operations oil port separately constitute; Wherein, tachogen and two preceding motor displacement controllers are electrically connected with central process unit respectively before preceding pump capacity controller, the preceding pump pressure sensor, two; The rear drive system by back pump, the back pump capacity controller that is located at this pump pumping hole place, back and back pump pressure sensor, parallel connection back with after the left back motor that is communicated with of pump and right back motor, separately be located at left back motor and right back motor operations oil port back tachogen and after the motor displacement controller constitute; Wherein, back pump capacity controller, back pump pressure sensor, two back tachogens and two back motor displacement controllers are electrically connected with central process unit respectively; Be connected with the driving engine auxiliary gear box through key between front pump, the back pump.
All be integrated with slippage pump on front pump and the back pump.
Compare with prior art, the utility model has adopted the enclosed hydrostatic transmissions mode of double pump four motors owing to adopted technique scheme, has therefore improved the driving efficiency of hydraulic efficiency pressure system greatly; Not only can be convenient to forward and backward car body and can obtain bigger angle, thereby help reducing turn radius, raising maneuvering performance, and can improve the moving velocity of vehicle through the discharge capacity of control double pump and four motors.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Among the figure: pump pressure sensors 18 before the pump capacity controllers 17 before the left back motor of the right back motor of motor displacement controller 6 central process units 7 traveling controllers 8 back motor displacement controllers 9 back tachogens 10 11 12 rear drive systems 13 back pump capacity controllers, 14 back pump pressure sensors, the 15 back pumps 16 before the tachogens 5 before the left front motor 3 right front motors 4 of front drive system 1 front pump 2
The specific embodiment: the utility model is described further below in conjunction with accompanying drawing and concrete embodiment:
As shown in Figure 1: left front motor 3 that front drive system 1 is communicated with front pump 2 through oil pipe by front pump 2, the preceding pump capacity controller 17 that is located at this front pump pumping hole place and preceding pump pressure sensor 18, parallel connection back and right front motor 4, be located at the preceding tachogen of left front motor 3 and right front motor 4 actuator port places two 5 separately, two preceding motor displacement controllers 6 being located at left front motor 3 and right front motor 4 actuator port places separately constitute; Wherein, preceding pump capacity controller 17, preceding pump pressure sensor 18, two preceding tachogens 5 and two preceding motor displacement controllers 6 are electrically connected with central process unit 7 respectively.Rear drive system 13 by back pump 16, the back pump capacity controller 14 that is located at this pump pumping hole place, back and back pump pressure sensor 15, parallel connection back through oil pipe with after the left back motor 12 that is communicated with of pump 16 and right back motor 11, separately be located at tachogen 10 behind left back motor 12 and right back motor 11 actuator port places two, separately be located at left back motor 12 and right back motor 11 actuator port places two after motor displacement controller 9 constitute; Wherein, back pump capacity controller 14, back pump pressure sensor 15, after two behind tachogen 10 and two motor displacement controller 9 be electrically connected with central process unit 7 respectively.Central process unit 7 is electrically connected with traveling controller 8 through the CAN data bus, is connected with the driving engine auxiliary gear box through key between front pump 2, the back pump 16.In order to guarantee normal fuel feeding in time, all be integrated with slippage pump on front pump 2 and the back pump 16.
During Vehicular turn; Traveling controller 8 gives left front motor 3, right front motor 4, left back motor 12, right back motor 11 different current values; Adjust the rotating speed of each motor, the differential that left front motor 3 and right front motor 4, left back motor 12 and right back motor 11 acquisitions and turn radius are complementary; Prevent that simultaneously crawler belt from skidding, motor is inhaled sky, guarantee the pressure basically identical of left front motor 3 and right front motor 4, left back motor 12 and right back motor 11, improve driving efficiency.
When the vehicle road running raises speed; Load continues to increase; Need to strengthen engine throttle, load and throttle information feed back to traveling controller 8 through central controller 7, and this traveling controller provides the execution signal; Central process unit 3 is carried out pump capacity controller 17 before signal control, back pump capacity controller 14 according to this, and preceding motor displacement controller 6, back motor displacement controller 9; Preceding pump capacity controller 17, back pump capacity controller 14 are regulated and control front pump 2, back pump 16 respectively to max.cap.; Before the left front motor of motor displacement controller 6 regulation and control 3, right front motor 4 reduce to minimum injection rate; The left back motor of back motor displacement controller 9 regulation and control 12, right back motor 11 are reduced to minimum injection rate, thereby are obtained running at high speed of vehicle.
Claims (2)
1. the two car body hydrostatic drive running gears of crawler type comprise front drive system, rear drive system, central process unit and the traveling controller that is electrically connected with it; It is characterized in that: left front motor (3) that front drive system (1) is communicated with front pump (2) by front pump (2), the preceding pump capacity controller (17) that is located at this front pump pumping hole place and preceding pump pressure sensor (18), parallel connection back and right front motor (4), be located at the preceding tachogen (5) and preceding motor displacement controller (6) formation at left front motor (3) and right front motor (4) actuator port place separately; Wherein, tachogen (5) and two preceding motor displacement controllers (6) are electrically connected with central process unit (7) respectively before preceding pump capacity controller (17), the preceding pump pressure sensor (18), two; Rear drive system (13) by back pump (16), the back pump capacity controller (14) and the back pump pressure sensor (15) that are located at this pump pumping hole place, back, parallel connection back with after the left back motor (12) that is communicated with of pump (16) and right back motor (11), separately be located at left back motor (12) and right back motor (11) actuator port place back tachogen (10) and after motor displacement controller (9) formation; Wherein, back pump capacity controller (14), back pump pressure sensor (15), two back tachogens (10) and two back motor displacement controllers (9) are electrically connected with central process unit (7) respectively; Be connected with the driving engine auxiliary gear box through key between front pump (2), the back pump (16).
2. the two car body hydrostatic drive running gears of crawler type according to claim 1 is characterized in that: all be integrated with slippage pump on front pump (2) and the back pump (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120270386 CN202174937U (en) | 2011-07-28 | 2011-07-28 | Crawler-type double-car-body hydraulic transmission travelling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120270386 CN202174937U (en) | 2011-07-28 | 2011-07-28 | Crawler-type double-car-body hydraulic transmission travelling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202174937U true CN202174937U (en) | 2012-03-28 |
Family
ID=45864839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120270386 Expired - Lifetime CN202174937U (en) | 2011-07-28 | 2011-07-28 | Crawler-type double-car-body hydraulic transmission travelling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202174937U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958543A (en) * | 2021-09-27 | 2022-01-21 | 太原重工股份有限公司 | Traveling mechanism control system and control method thereof |
| US20220097704A1 (en) * | 2020-09-30 | 2022-03-31 | Ford Global Technologies, Llc | Crawl operations for four-wheel steering vehicles |
-
2011
- 2011-07-28 CN CN 201120270386 patent/CN202174937U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220097704A1 (en) * | 2020-09-30 | 2022-03-31 | Ford Global Technologies, Llc | Crawl operations for four-wheel steering vehicles |
| US11993262B2 (en) * | 2020-09-30 | 2024-05-28 | Ford Global Technologies, Llc | Crawl operations for four-wheel steering vehicles |
| CN113958543A (en) * | 2021-09-27 | 2022-01-21 | 太原重工股份有限公司 | Traveling mechanism control system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120328 |