CN2772879Y - Hinge tractor with hydraulic driver on rear wheel - Google Patents
Hinge tractor with hydraulic driver on rear wheel Download PDFInfo
- Publication number
- CN2772879Y CN2772879Y CN 200520050751 CN200520050751U CN2772879Y CN 2772879 Y CN2772879 Y CN 2772879Y CN 200520050751 CN200520050751 CN 200520050751 CN 200520050751 U CN200520050751 U CN 200520050751U CN 2772879 Y CN2772879 Y CN 2772879Y
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- CN
- China
- Prior art keywords
- tractor
- valve
- pipeline
- trailer
- drive device
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model relates to a hinge tractor with a hydraulic drive device on rear wheels. The utility model is additionally provided with a hydraulic drive device on a rear axle of the existing hinge tractor trailer, wherein the existing hinge tractor trailer comprises front wheels (1), a machine head (2), a trailer (5), a rear wheel shaft (6) and a hydraulic lifting device composed of an oil pressure pump (3), an oil tank (4), a valve-1 (11), a valve-2 (8) and a pipeline; the hydraulic drive device is composed of an oil motor (7), a one-way valve (10), a valve-3 (12) and a pipeline (13); the hydraulic drive device directly drives the rear wheel shaft (6) of the tractor trailer. When the utility model runs on a flat road, the hydraulic drive device is not started to work, the tractor is made to use front wheels to drive, and the advantages of an original hinge tractor can be kept; when the utility model runs on a road surface which has big slope and needs climbing, the hydraulic drive device is started to work, when the front wheels drive, the rear wheels also become drive wheels simultaneously, and the tractor becomes a four-wheel drive tractor. The tractor keeps the advantages of an original hinge tractor, and also improves the climbing capacity; the utility model avoids the slipping phenomenon when running on slope, and is suitable for running on road surfaces, such as a flat road, a mountain road and a road having big slope.
Description
[technical field]
The utility model is a kind of trac., is the frame-steered tractor that a kind of trailing wheel is provided with fluid pressure drive device specifically.
[background technology]
At present, the radial type or the wheel-tire tractor of production and selling in all parts of the country, for example common 12Y trac. is to be fused by head and the trailer articulated mounting by the centre, by the f-w-d of head, the articulated mounting by the centre drags/promotes trailer railway carriage forward/backward during walking.Because the size of propulsive effort mainly decides by head and ground-surface friction force size, and equaling the weight of head, friction force multiply by ground-surface friction coefficient, friction coefficient one regularly, the weight of head is big more, the friction force that produces is just big more, but the weight of common trac. head is unmodified, and therefore the trac. hill climbing ability of this structure is poor, as long as the goods of adorning on the trailer is heavy slightly or meet the rainy day, during climbing skidding will appear.
[summary of the invention]
Poor in order to overcome existing frame-steered tractor hill climbing ability, the defective of skidding easily, the utility model provides a kind of hill climbing ability strong, load-carrying or non-slip frame-steered tractor when rainy.
For solving its technical matters, the technical solution adopted in the utility model is: on the basis of existing common radial type 12Y trac., set up the device of a cover hydraulic driven trailer trailing wheel.This device is that the hydraulic pressure with existing 12Y tractor hydraulic pump can be propulsion source, by valve and plumbing connection to the oil motor that is located on the trailer back axle wheel shaft, start valve, hydraulic pressure can be by the wheel shaft rotation of oil motor driving-trailer back axle, advance thereby drive trailer wheels, reach the purpose of four wheel drive.
The beneficial effects of the utility model are: 1. because the utility model is improved on the basis of existing radial type 12Y tractor structure, do not change the structure of former trac., therefore it to have kept original frame-steered tractor simple in structure, maneuvering performance is good, the advantage that turn radius is little.2. owing on the wheel shaft of trailer back axle, set up fluid pressure drive device, when trac. in that road gradient is big when needing climbing, in f-w-d, the work of primer fluid pressure device, making trailing wheel is that trailer wheel also becomes drive wheel, form the structure of four wheel drive, so it has strengthened hill climbing ability, skidding in the time of avoiding going up a slope has improved the traction adhesion value of trac.; Improve load carrying ability and road speed when trac. is climbed, thereby improved the work efficiency of trac..3. simple in structure, easy to operate because of set fluid pressure drive device, cost is low, can comprise the road surface cruising that the gradient is big on various road surfaces during work, can increase the driving profit for the car owner, and is easy to utilize.
[description of drawings]
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a fluid pressure drive device structural representation of the present utility model.
Among the figure: 1 trac. front-wheel, 2 trac. heads, 3 gear type pumps, 4 hydraulic reservoirs, 5 trailers, 6 trailer trailing wheels, 7 oil motors, 8 valves-2,9 hydraulic ram, 10 check valves, 11 valves-1,12 valve-3,13 pipeline.
[specific embodiment]
With reference to accompanying drawing:
Including trac. front-wheel (1), head (2), trailer (5), trailer trailing wheel (6), by gear type pump (3), hydraulic ram (9), hydraulic reservoir (4), on the existing radial type 12Y trac. of the hydraulic lifting device that valve-1 (11) and valve-2 (8) formed and the connecting device of headstock and trailer, set up one by oil motor (7) check valve (10), the fluid pressure drive device that valve-3 (12) and pipeline (13) are formed, wherein oil motor (7) can be by 320 types or 316 types, 314 types, the gear type pump of 310 types converts, be installed on the trailer back axle, the oil motor two ends are parallel with check valve (10) by pipeline, after oil motor that parallel connection and check valve one end are by manual three-way valve door-3 (12) of pipeline (13) serial connection, on the one hand by pipeline and original valve-1 (11), valve-2 (8) is connected in parallel on the two ends of hydraulic ram (9), on the other hand by being parallel to original hydraulic reservoir (4) two ends behind pipeline and the gear type pump (3).The working process of fluid pressure drive device is: a, oil motor work: valve-off-1 (11), Open valve-3 (12), make hydraulic oil suck gear type pump (3) from fuel tank (4), driving engine driven gear pump (3) work forms high-voltage oil liquid, high-voltage oil liquid enters the back axle wheel rotation that oil motor (7) drives trailer by valve-3 (12) and pipeline (13), and fluid is transmitted back in the fuel tank (4) from the mouth of oil motor (7); B, oil motor (7) are not worked: valve-off-3 (12), fluid forms the loop by oil motor (7) automatically by check valve (10) and fuel tank (4).
Claims (2)
1, a kind of trailing wheel is provided with the frame-steered tractor of fluid pressure drive device, comprise trac. front-wheel (1), head (2), trailer (5), trailing wheel (6), pipeline (13), the articulated mounting of head and trailer is by gear type pump (3), hydraulic reservoir (4), hydraulic ram (9), valve-1 (11), the hydraulic lifting device that valve-2 (8) and pipeline are formed, it is characterized in that: on this trac., also be provided with by oil motor (7), check valve (10), the tractor hydraulic actuating device that valve-3 (12) and pipeline (13) are formed, the oil motor of this actuating device (7) is installed on the back axle of tractor trailer, the two ends of oil motor (7) are parallel with check valve (10) by pipeline, after an end of the check valve (10) that parallel connection is connected in series valve-3 (12) by pipeline (13), pass through pipeline on the one hand, valve-2 (8) and valve-1 (11) is connected in parallel on the two ends of hydraulic ram (9), on the other hand by being parallel on the two ends of hydraulic reservoir (4) behind pipeline and the gear type pump (3).
2, trac. according to claim 1 is characterized in that: described oil motor (7) can be converted by the gear type pump of 320 types or 316 types, 314 types, 310 types, and described valve-3 (12) is the manual three-way valve door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520050751 CN2772879Y (en) | 2005-05-13 | 2005-05-13 | Hinge tractor with hydraulic driver on rear wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520050751 CN2772879Y (en) | 2005-05-13 | 2005-05-13 | Hinge tractor with hydraulic driver on rear wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2772879Y true CN2772879Y (en) | 2006-04-19 |
Family
ID=36708136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520050751 Expired - Lifetime CN2772879Y (en) | 2005-05-13 | 2005-05-13 | Hinge tractor with hydraulic driver on rear wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2772879Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427332C (en) * | 2005-05-13 | 2008-10-22 | 覃志明 | Hinged tractor with hydraulic driver on back wheel |
-
2005
- 2005-05-13 CN CN 200520050751 patent/CN2772879Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427332C (en) * | 2005-05-13 | 2008-10-22 | 覃志明 | Hinged tractor with hydraulic driver on back wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20081022 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |