CN2900219Y - Hydraulic driving device capable of two-way driving tractor rear axle - Google Patents
Hydraulic driving device capable of two-way driving tractor rear axle Download PDFInfo
- Publication number
- CN2900219Y CN2900219Y CN 200620034054 CN200620034054U CN2900219Y CN 2900219 Y CN2900219 Y CN 2900219Y CN 200620034054 CN200620034054 CN 200620034054 CN 200620034054 U CN200620034054 U CN 200620034054U CN 2900219 Y CN2900219 Y CN 2900219Y
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- hydraulic
- gear type
- type pump
- power
- hydraulic motor
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- Expired - Fee Related
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Abstract
The utility model discloses a hydraulic driving device that drives back tractor axle at dual directions, which comprises an assembly of gear pump and clutch (2), a gear pump (3), an oil suction tube (4) of the gear pump, a hydraulic oil storage tank (5), a return tube (6) and an oil suction tube (7) of a reversal valve, a reversal valve (8), hydraulic oil tubes (9 and 10), a hydraulic motor (11) and a hydraulic motor clutch (12). Wherein, both ends of the oil suction pipe of the gear pump are respectively connected with the gear pump (3) and hydraulic oil storage tank (5). The hydraulic motor (11) is connected with a back axle speed reducer (13) through the hydraulic motor clutch (12). In addition, the assembly of gear pump and clutch (2) is arranged between the driving shaft (1) and gear pump (3). One end of the oil suction tube (7) and return tube of the reversal valve is connected with the reversal valve (8) and the other end is connected with the gear pump (3) and hydraulic oil storage tank (5). The hydraulic motor clutch (12) has rectangular tooth. The utility model has function of reverse tractor running and disconnects the clutch while the hydraulic driving system is under idle state, thus decreasing power and energy consumption.
Description
Technical field
But the utility model relates to a kind of hydraulic actuator of bi-directional drive tractor rear axle.
Background technology
Existing trac. it drag case not have power-handling capability, particularly when climbing, heavy duty often skids, for improving this situation, someone is connected HM Hydraulic Motor and is installed in trac. and drags on the case as rear drive equipment with the lilliput car rear axle reductor, though this driving device can provide certain rear-guard power, because it is unidirectional transmission, so onward impulse can only be provided, and do not have car-backing function, therefore, result of use is still not good.
Summary of the invention
But the purpose of this utility model is to provide a kind of hydraulic actuator of bi-directional drive tractor rear axle, and this driving device not only can provide onward impulse, strengthens the heavily loaded hill climbing ability of trac., but also possesses car-backing function, makes trac. drag case free to advance or retreat.
For achieving the above object, the solution that the utility model adopts is: it comprises gear type pump, the gear type pump oil inlet, hydraulic reservoir, hydraulic oil pipe, HM Hydraulic Motor and HM Hydraulic Motor power-transfer clutch, the two ends of gear type pump oil inlet are connected with fuel tank with gear type pump respectively, HM Hydraulic Motor links by HM Hydraulic Motor power-transfer clutch and rear axle reductor, in addition, it also comprises gear type pump clutch assembly and change-over valve, the gear type pump clutch assembly is connected between imput shaft and the gear type pump, one end of change-over valve oil inlet and oil outlet pipe links to each other with change-over valve respectively, the other end links to each other with fuel tank with gear type pump respectively, the two ends of hydraulic oil pipe are connected with HM Hydraulic Motor with change-over valve respectively, and the HM Hydraulic Motor power-transfer clutch is a rectangular tooth clutch.
Gear type pump clutch assembly in the such scheme is made up of joystick, shift fork, power-transfer clutch left side meshing-body, the right meshing-body of power-transfer clutch, castellated shaft and spring, power-transfer clutch left side meshing-body links by castellated shaft and gear type pump, spring is located on the castellated shaft, the right meshing-body of power-transfer clutch links to each other with imput shaft, the lower end of shift fork is positioned at the annular groove of power-transfer clutch left side meshing-body, can stir power-transfer clutch left side meshing-body, the upper end of joystick control shift fork.
The utility model compared with prior art has following effect:＜1〉owing between gear type pump and imput shaft, be provided with power-transfer clutch, therefore when not using power hydraulic system, power-transfer clutch can be separated, thereby can reduce consumption of power, save the energy;＜2〉owing between gear type pump and HM Hydraulic Motor, be provided with change-over valve, therefore increased the car-backing function of back axle;＜3〉both can provide rear-axle drive power, can be used for auxiliary braking again.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the constructional drawing of gear type pump clutch assembly.
Among the figure: 1-imput shaft 2-gear type pump clutch assembly 3-gear type pump 4-gear type pump oil inlet 5-hydraulic reservoir 6-change-over valve oil return pipe 7-change-over valve oil inlet 8-change-over valve 9, the right meshing-body 205-of 10-hydraulic oil pipe 11-HM Hydraulic Motor 12-HM Hydraulic Motor power-transfer clutch 13-retarder 14-wheel 201-joystick 202-shift fork 203-power-transfer clutch left side meshing-body 204-power-transfer clutch castellated shaft 206-spring
The specific embodiment
As shown in Figure 1, the utility model is by gear type pump clutch assembly 2, gear type pump 3, gear type pump oil inlet 4, hydraulic reservoir 5, change-over valve oil return pipe 6, change-over valve oil inlet 7, change-over valve 8, hydraulic oil pipe 9,10, HM Hydraulic Motor 11 and HM Hydraulic Motor power-transfer clutch 12 are formed, gear type pump 3 links to each other with imput shaft 1 by engagement sleeve assembly 2, the structure of gear type pump clutch assembly 2 as shown in Figure 2, it comprises control lever 201, shift fork 202, power-transfer clutch left side meshing-body 203, the right meshing-body 204 of power-transfer clutch, castellated shaft 205 and spring 206, the lower end of shift fork 202 is positioned at the annular groove of power-transfer clutch left side meshing-body 203, the upper end of joystick 201 control shift forks 202, spring 206 is installed on the castellated shaft 205, the endoporus of power-transfer clutch left side meshing-body 203 is milled with spline, it combines with the castellated shaft 205 of gear type pump and forms Partner, the endoporus and the imput shaft 1 usefulness flat key of the right meshing-body 204 of power-transfer clutch are fixed, form drive end, when power-transfer clutch left side meshing-body 203 and right meshing-body 204 mesh together, 3 work of imput shaft 1 driven gear pump.In the present embodiment, what power-transfer clutch left side meshing-body 203 and right meshing-body 204 adopted is rectangular teeth.When power-transfer clutch left side meshing-body 203 is separated with right meshing-body 204, pulling joystick 201 to the right makes its lower end stir shift fork 202 to be moved to the left, the elastic force that the moving belt dynamic clutch left side meshing-body 203 of shift fork 202 overcomes spring 206 slides left, the left and right meshing-body of power-transfer clutch separates, gear type pump 3 stalls, reverse operating, then power-transfer clutch left side meshing- body 203 and 204 combinations of right meshing-body.Among Fig. 1, the two ends of gear type pump oil inlet 4 are connected on gear type pump 3 and the fuel tank 5, one end of change-over valve oil inlet 7 and oil outlet pipe 6 is connected with change-over valve 8, and the other end is connected with fuel tank 5 with gear type pump 3 respectively, and HM Hydraulic Motor 11 links by HM Hydraulic Motor power-transfer clutch 12 and rear axle reductor 13.The utility model possesses rewind function for making tractor rear axle, and what the left and right meshing-body of HM Hydraulic Motor power-transfer clutch 12 adopted is rectangular teeth.Connect by hydraulic oil pipe 9,10 between HM Hydraulic Motor 11 and the change-over valve 8.
Working process when the utility model is used as Power Drive Unit is such: when imput shaft 1 is rotated by gear type pump clutch assembly 2 driven gear pumps 3, hydraulic oil flows into gear type pump 3 from fuel tank 5 through gear type pump oil inlet 4, the high pressure oil that gear type pump 3 pumps enters change-over valve 8 and hydraulic oil pipe 10 through change-over valve oil inlet 7, enter HM Hydraulic Motor 11 at last and promote its work, 11 of HM Hydraulic Motor drive back axle by HM Hydraulic Motor power-transfer clutch 12 and move.When change-over valve 8 is placed on when advancing gear, hydraulic oil pipe 10 is an oil inlet, and hydraulic oil pipe 9 is an oil return pipe, and HM Hydraulic Motor 11 is just being changeed, and back axle advances.When change-over valve 8 was placed on the reverse gear position, hydraulic oil pipe 9 was an oil inlet, and hydraulic oil pipe 10 is an oil return pipe, HM Hydraulic Motor 11 counter-rotatings, and back axle falls back.
The utility model as the principle of work of retarder is: during power hydraulic system work, consume a part of engine power and be converted to rear-axle drive power, conversely, we also can be used as auxiliary braking power with the resistance of power hydraulic system.
During the trac. lower long slope, wheel 14 drives retarder 13 rotations under the sliding force effect, and through HM Hydraulic Motor power-transfer clutch 12 drive HM Hydraulic Motor 11 forward rotation, this moment, HM Hydraulic Motor 11 was converted to gear type pump, and the oil that pumps flows back to hydraulic reservoir 5 through hydraulic oil pipe 9, change-over valve 8 and oil pipe 6.During HM Hydraulic Motor 11 rotations, the oil outlet place of hydraulic oil pipe 10 forms vacuum, and this pull of vacuum reaches gear type pump 3 through oil pipe 10, change-over valve 8 and oil pipe 7, and gear type pump 3 flows passive rotation under the promotion at the oil of siphon action, and forms the loop from oil pipe 4 suction hydraulic oil.Therefore, during the trac. lower long slope, hydraulic efficiency pressure system can play certain deceleration effort.
Claims (2)
1. but the hydraulic actuator of a bi-directional drive tractor rear axle, it comprises gear type pump (3), gear type pump oil inlet (4), hydraulic reservoir (5), hydraulic oil pipe (9,10), HM Hydraulic Motor (11) and HM Hydraulic Motor power-transfer clutch (12), the two ends of gear type pump oil inlet (4) are connected with fuel tank (5) with gear type pump (3) respectively, HM Hydraulic Motor (11) subtracts connected device (13) by HM Hydraulic Motor power-transfer clutch (12) and back axle and links, it is characterized in that: it also comprises gear type pump clutch assembly (2) and change-over valve (8), gear type pump clutch assembly (2) is connected between imput shaft (1) and the gear type pump (3), one end of change-over valve oil inlet (7) and oil return pipe (6) links to each other with change-over valve (8) respectively, the other end links to each other with fuel tank (5) with gear type pump (3) respectively, hydraulic oil pipe (9,10) two ends are connected (11) with change-over valve (8) respectively with HM Hydraulic Motor, HM Hydraulic Motor power-transfer clutch (12) is a rectangular tooth clutch.
2. but the hydraulic actuator of a kind of bi-directional drive tractor rear axle according to claim 1, it is characterized in that: gear type pump clutch assembly (2) is by joystick (201), shift fork (202), power-transfer clutch left side meshing-body (203), the right meshing-body (204) of power-transfer clutch, castellated shaft (205) and spring (206) are formed, power-transfer clutch left side meshing-body (203) links by castellated shaft (205) and gear type pump (3), spring (206) is located on the castellated shaft (205), the right meshing-body of power-transfer clutch (204) links to each other with imput shaft (1), the lower end of shift fork (202) is positioned at the annular groove of power-transfer clutch left side meshing-body (203), can stir power-transfer clutch left side meshing-body (203), the upper end of joystick (201) control shift fork (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034054 CN2900219Y (en) | 2006-04-30 | 2006-04-30 | Hydraulic driving device capable of two-way driving tractor rear axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034054 CN2900219Y (en) | 2006-04-30 | 2006-04-30 | Hydraulic driving device capable of two-way driving tractor rear axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900219Y true CN2900219Y (en) | 2007-05-16 |
Family
ID=38084383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620034054 Expired - Fee Related CN2900219Y (en) | 2006-04-30 | 2006-04-30 | Hydraulic driving device capable of two-way driving tractor rear axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900219Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101879864A (en) * | 2010-05-18 | 2010-11-10 | 覃志明 | Four-wheel drive wheeled tractor with hydraulically driven front axle |
| CN103332110A (en) * | 2013-07-04 | 2013-10-02 | 四川川龙拖拉机制造有限公司 | Independent hydraulic power output device of tractor |
| CN104108311A (en) * | 2014-07-21 | 2014-10-22 | 赵铁栓 | Hydraulic-motor traveling driving device of land leveler |
-
2006
- 2006-04-30 CN CN 200620034054 patent/CN2900219Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101879864A (en) * | 2010-05-18 | 2010-11-10 | 覃志明 | Four-wheel drive wheeled tractor with hydraulically driven front axle |
| CN103332110A (en) * | 2013-07-04 | 2013-10-02 | 四川川龙拖拉机制造有限公司 | Independent hydraulic power output device of tractor |
| CN104108311A (en) * | 2014-07-21 | 2014-10-22 | 赵铁栓 | Hydraulic-motor traveling driving device of land leveler |
| CN104108311B (en) * | 2014-07-21 | 2018-03-30 | 西安卓士博液压工程有限责任公司 | A kind of land leveller hydraulic motor travel driving unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070516 Termination date: 20100430 |