CN101306647A - Process for using hydraulic driven trailer wheel for hinged jointed tractor - Google Patents
Process for using hydraulic driven trailer wheel for hinged jointed tractor Download PDFInfo
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- CN101306647A CN101306647A CNA2007100349741A CN200710034974A CN101306647A CN 101306647 A CN101306647 A CN 101306647A CN A2007100349741 A CNA2007100349741 A CN A2007100349741A CN 200710034974 A CN200710034974 A CN 200710034974A CN 101306647 A CN101306647 A CN 101306647A
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- trailer
- hydraulic pump
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Abstract
The invention relates to a method for implementing the use of hydraulically-driven trailer wheels in an articulated tractor. The method is implemented based on the prior articulated tractor with addition of a hydraulic driving device which consists of a hydraulic pump (3), a reversal valve (4), a trailer axle (7), an oil motor (8), a hydraulic oil tank (6) and a pipeline. The hydraulic driving device directly drives the shaft of the trailer axle (7). When driving on a normal road, the hydraulic driving device is not started and the heat-ended driving wheel is actuated. When climbing on a road with large slope or driving on a muddy road, the heat-ended driving wheel is actuated and simultaneously the hydraulic driving device is started, so that the trailer wheel acts as a driving wheel, thereby realizing four-wheel driving. The method can greatly improve the traction and attachment properties of the articulated tractor without changing the existing structure and purpose of the articulated tractor and increase the work efficiency. The method is widely applied in transport operation of various articulated tractors such as walking tractor, variable walking transporter and small-size four-wheel tractor.
Description
(technical field)
The present invention is a kind of method, is the method that a kind of frame-steered tractor uses hydraulic driven trailer wheel specifically.
(background technology)
At present, the frame-steered tractor that use in China rural area, when carrying out hauling operation, its head and trailer are that the articulated mounting by the centre fuses, and by the drive wheel of head, drag (promotion) trailer advance (retreating) by articulated mounting during walking.Decide by head and ground-surface friction force size because the size of propulsive effort is main, and equaling the weight of head, friction force multiply by the ground-surface friction coefficient, when friction coefficient one timing, 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, therefore on the trac. band of this structure behind the trailer floating put forth effort poor, hill climbing ability is poor, carrying capacity on mire, soft surface is poor, skid easily, road pavement damage is serious, serious restriction the performance that in being engaged in hauling operation, acts on of frame-steered tractor.
In recent years, the hand-variable transport plane is repacked into four wheel drive in the tractor plant that has, and has installed an auxiliary gear box on the change speed gear box of trac. additional, loads onto back axle on trailer, and auxiliary gear box drives back axle by transmission shaft and rotates.Though the trac. of this structure has improved hill climbing ability and at the carrying capacity of muddy soft surface, but obviously there is some defective: the one, owing to increased auxiliary gear box, changed the integral structure of trac., the trac. after the repacking can only be engaged in hauling operation, can not be engaged in farmland operation; The 2nd, owing to use transmission shaft, increased turn radius, it is dumb to turn, and has hidden dangers such as overturning easily; The 3rd, when not using the trailer back-wheel drive, the car load load obviously increases, and has increased oil consumption, the economy variation; The 4th, this method can only use on the hand-variable transport plane, can not be applied on walker tractor and the small four-wheel tractor.
Therefore, for real hill climbing ability and the carrying capacity on muddy soft surface of frame-steered tractor in being engaged in hauling operation that improve, be badly in need of finding a kind of trailer wheel that can when the head drive wheel skids, use to drive on the market, form the four-wheel driven in synchronism, do not change the existing structure of trac. again, make trac. can not only be engaged in hauling operation, can also be engaged in farmland operation, keep former turn radius little, turn flexibly, safety is good, and oil consumption is low, the advantage of good economy performance, simultaneously, install again simply, easy to operate, the method that all frame-steered tractors all are suitable for.
(summary of the invention)
In order to improve hill climbing ability and the carrying capacity on muddy mushy road of frame-steered tractor when being engaged in hauling operation, do not change the existing structure of trac. simultaneously, the invention provides the method that a kind of frame-steered tractor uses hydraulic driven trailer wheel.
For solving its technical matters, the technical solution used in the present invention is: on the basis of existing common frame-steered tractor, set up the device of a cover hydraulic driven trailer wheel.This device can be a propulsion source with the hydraulic pressure of the Hydraulic Pump of existing trac., to the oil motor that is located on the trailer vehicle bridge, start valve by valve and plumbing connection, hydraulic pressure can will pass through oil motor driving-trailer vehicle bridge, advance (retreating) thereby drive trailer, reach the purpose of four wheel drive.
The invention has the beneficial effects as follows: 1. owing on the trailer vehicle bridge, set up fluid pressure drive device, when trac. needs climbing or during by muddy road such as soft in that road gradient is big, in the head drive wheel, the work of primer fluid hydraulic driver, make trailer wheel also become drive wheel, form the structure of four wheel drive.Therefore, it has strengthened hill climbing ability and the carrying capacity when muddy soft surface, has avoided skidding, has improved the traction adhesion value of trac., has improved the work efficiency of trac..2. because the present invention does not change the existing structure of trac., therefore, it has kept the advantage of frame-steered tractor a tractor serves several purposes, promptly can be engaged in farmland operation, can be engaged in fixed operation again, can also be engaged in hauling operation.3. owing to be to lean on the high pressure hose transferring power between Hydraulic Pump and the oil motor (head and trailer), kept that the frame-steered tractor manoevreability is good, turn radius is little, turning is flexible, the advantage that safety is good.4. owing between oil motor and vehicle bridge power-transfer clutch is housed, when not using trailer wheel to drive, hind axle separates fully with running part, has reduced car resistance and mechanical wear, has kept the advantage of former trac. good economy performance.5. the present invention can be widely applied on all frame-steered tractors such as walker tractor, hand-variable transport plane, small four-wheel tractor, both can be used for new machine, can be applied to again in the old machine repacking, and is easy to utilize.
(description of drawings)
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, trac. head change speed gear box, 2, the Hydraulic Pump power-transfer clutch, 3, Hydraulic Pump, 4, change-over valve, 5, distributing valve, 6, hydraulic reservoir, 7, the trailer vehicle bridge, 8 oil motors, 9, the speed change driving lever, 10, clutch driving lever, 11, high pressure fuel pipe, 12, oil inlet, 13, oil return pipe.
(concrete method and facilities) is with reference to accompanying drawing 1: Hydraulic Pump (3) is housed on trac. head change speed gear box (1), between Hydraulic Pump (3) and the trac. head change speed gear box (1) Hydraulic Pump power-transfer clutch (2) is housed.The oil inlet of Hydraulic Pump (3) links to each other with hydraulic reservoir (6) by oil inlet (12), and the oil outlet of Hydraulic Pump (3) links to each other with change-over valve (4) by high pressure fuel pipe (11).Hydraulic Pump (3) can be selected different model according to the different needs of pressure, flow, rotating speed.Oil motor (8) is housed on trailer vehicle bridge (7), and is provided with speed change driving lever (9) and clutch driving lever (10), oil motor (8) links to each other by two high pressure fuel pipes (11) respectively with change-over valve (4).The model of oil motor (8) should be selected the different demands of pressure, rotating speed, moment of torsion according to different regions, different type of machines, different purposes.Link to each other by oil return pipe (13) between change-over valve (4) and the hydraulic reservoir (6), for keeping former trailer hoisting system normal operation, the distributing valve (5) of in oil return pipe (13), having connected.The fluid power system working process is: the work of a. oil motor.Operation trailer vehicle bridge speed change driving lever (9) is to the appropriate location, operation trailer vehicle bridge clutch driving lever (10) is to binding site, operation Hydraulic Pump power-transfer clutch (2) is to binding site, driving engine drives Hydraulic Pump (3) work, hydraulic oil enters Hydraulic Pump (3) by oil inlet (12) and forms high-voltage oil liquid from hydraulic reservoir (6), reversing valve operated (4), make high-voltage oil liquid pass through change-over valve (4), high pressure fuel pipe (11) enters oil motor (8) and drives the rotation of trailer vehicle bridge (7) wheel shaft, and hydraulic oil passes through high pressure fuel pipe (11) from the oil outlet of oil motor (8), change-over valve (4), distributing valve (5), oil return pipe (13) is got back to hydraulic reservoir (6) and is formed the loop.Because oil motor (8) has the function of rotating,, realize forward or reverse, thereby driving-trailer advances or retreats by the flow direction of the hydraulic oil in reversing valve operated (4) the change oil motors (8).As with trailer vehicle bridge clutch driving lever (10) when being put into disengaged position, then oil motor (8) idle running, not driving-trailer vehicle bridge wheel shaft.B. oil motor is not worked.Reversing valve operated (4) make high-voltage oil liquid directly get back to hydraulic reservoir (6) by change-over valve (4), distributing valve (5), oil return pipe (13) and form the loop.Perhaps operation of selector valve (5) realizes the trailer lifting.
Claims (9)
1, a kind of frame-steered tractor uses the method for hydraulic driven trailer wheel, is the device of setting up the hydraulic driven trailer wheel that a cover is made up of Hydraulic Pump (3), Hydraulic Pump power-transfer clutch (2), change-over valve (4), trailer vehicle bridge (7), oil motor (8), hydraulic reservoir (6), high pressure fuel pipe (11), oil inlet (12), oil return pipe (13), distributing valve (5) on the basis of existing frame-steered tractor.
2, method according to claim 1 is characterized in that: described Hydraulic Pump (3) according to the hydraulic driven trailer wheel device to the different demands of pressure, flow, rotating speed select 520,525,532,540,550, more than 563 kind of model.
3, method according to claim 1 is characterized in that: described oil motor (8) is selected the axle distributing cycloid motor of many kinds of models of R80.R100.R125.R160.R200.R250.R315 to the different demands of pressure, rotating speed, moment of torsion according to different regions, different type of machines, different purposes.
4, method according to claim 1 is characterized in that: oil motor (8) is housed on the described trailer vehicle bridge (7), and is provided with speed change driving lever (9) and clutch driving lever (10).
5, method according to claim 1 is characterized in that: described change-over valve (4) is according to the flow of fluid power system, the three-position four-way valve of pressure different choice different model.
6, method according to claim 1 is characterized in that: described hydraulic reservoir (6) is selected 20 liters, 30 liters, 40 liters, 50 liters multiple different capabilities according to the hydraulic driven trailer wheel asynchronism(-nization), and installs cooling system additional.
7, method according to claim 1 is characterized in that: described high pressure fuel pipe (11) is a high pressure hose.
8, method according to claim 1 is characterized in that: described Hydraulic Pump power-transfer clutch (2) is installed between trac. head change speed gear box (1) and the Hydraulic Pump (3).
9, method according to claim 1 is characterized in that: described distributing valve (5) is connected between change-over valve (4) and the hydraulic reservoir (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100349741A CN101306647A (en) | 2007-05-18 | 2007-05-18 | Process for using hydraulic driven trailer wheel for hinged jointed tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100349741A CN101306647A (en) | 2007-05-18 | 2007-05-18 | Process for using hydraulic driven trailer wheel for hinged jointed tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101306647A true CN101306647A (en) | 2008-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100349741A Pending CN101306647A (en) | 2007-05-18 | 2007-05-18 | Process for using hydraulic driven trailer wheel for hinged jointed tractor |
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| Country | Link |
|---|---|
| CN (1) | CN101306647A (en) |
Cited By (5)
| 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 |
| CN103182933A (en) * | 2011-12-29 | 2013-07-03 | 广西玉柴机器股份有限公司 | Power output device for agricultural tractor |
| 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 |
| CN104369620A (en) * | 2014-10-28 | 2015-02-25 | 浙江德盛铁路器材股份有限公司 | Hydraulic drive axle |
| CN105882397A (en) * | 2016-05-04 | 2016-08-24 | 秦海红 | Self-help travel driving device of truck semi-trailer |
-
2007
- 2007-05-18 CN CNA2007100349741A patent/CN101306647A/en active Pending
Cited By (5)
| 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 |
| CN103182933A (en) * | 2011-12-29 | 2013-07-03 | 广西玉柴机器股份有限公司 | Power output device for agricultural tractor |
| 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 |
| CN104369620A (en) * | 2014-10-28 | 2015-02-25 | 浙江德盛铁路器材股份有限公司 | Hydraulic drive axle |
| CN105882397A (en) * | 2016-05-04 | 2016-08-24 | 秦海红 | Self-help travel driving device of truck semi-trailer |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20081119 |