CN101041327A - Tractor driving wheel height difference regulating device - Google Patents
Tractor driving wheel height difference regulating device Download PDFInfo
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- CN101041327A CN101041327A CN 200710015713 CN200710015713A CN101041327A CN 101041327 A CN101041327 A CN 101041327A CN 200710015713 CN200710015713 CN 200710015713 CN 200710015713 A CN200710015713 A CN 200710015713A CN 101041327 A CN101041327 A CN 101041327A
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- rocking arm
- outer peripheral
- peripheral face
- tractor
- driving wheel
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Abstract
The invention discloses a height-difference adjusting device of tractor driving wheel, comprising left and right rockers as final transmission box. Said left and right rockers are set on first ends of left and right driving wheels and second ends round outer peripheral faces of left and right power output semi-shafts respectively. The second end of said left rocker rotates round the outer peripheral face of said left power output semi-shaft and the second end of said right rocker rotates round the outer peripheral face of said right power output semi-shaft. It also comprises a first oil cylinder controlling the swing of left rocker and set between the left rocker and the tractor frame and a second oil cylinder controlling the relative swing of right rocker corresponding with the left rocker and set between the right rocker and the tractor frame. The invention is provided with simple structure, low producing cost and reasonable force for all parts. It is the simple modification under the foundation of prior walking tractor directly so that it can be suitable for mountains or hill regions with larger gradient.
Description
Technical field
The present invention relates to the trac. technical field, relate in particular to a kind of device of two drive wheel relative heights of scalable trac..
Background technology
The left and right sidesing driving wheel of most of known trac. is fixed on the same axis, can not adjust the height of its left and right sidesing driving wheel along with the slope change of walking region, turn on one's side easily when laterally walking in the hillside fields, only suit on the level land or hillside fields operation that the gradient is less, and can not be applied to bigger mountain region of the gradient or intersected country.Chinese patent CN1579121A discloses a kind of hillside tractor, it is arranged at the height difference apparatus of change speed gear box by a cover, drive is rotated simultaneously in opposite directions around the left and right sides connection pipe of left and right moving power output shaft outer peripheral face, the rotation of left and right sides connection pipe makes the rotational of the rocking arm of captive joint with it around the takeoff output semiaxis, make the left and right sidesing driving wheel that is fixed in the rocking arm other end do upper and lower motion, thereby the diff-H of having realized two drive wheels is regulated.Though this height difference apparatus compact conformation of this patent disclosure, use also more convenient, but, because the effect of gravity, on the connection pipe of the left and right sides, can produce a torque, although height difference apparatus overlaps the swing self-locking that the worm and gear device has been realized rocking arm by one, this torque is done for a long time and is used for this cover worm and gear device, can influence its service life.Simultaneously, this height difference apparatus structure is too complicated, and manufacturing cost is higher.
Summary of the invention
Technical matters to be solved by this invention is: a kind of height difference regulating device of tractor driving wheel is provided, and this control apparatus is simple in structure, low cost of manufacture.
For solving the problems of the technologies described above, technical scheme of the present invention is: the height difference regulating device of tractor driving wheel, but the left and right rocking arm that comprises the final transmission case body of double as, described left and right rocking arm has first end of the left and right driving of being installed on wheel respectively, with second end around the outer peripheral face of left and right takeoff output semiaxis, around the outer peripheral face of described left takeoff output semiaxis, it also comprises first oil cylinder that is arranged between described left rocking arm and the tractor frame, controls left rocking arm swing to second end of described left rocking arm rotationally.
As a kind of improvement, second end of described right rocking arm is rotationally around the outer peripheral face of described right takeoff output semiaxis, it also comprise be arranged between described right rocking arm and the tractor frame, the right rocking arm of control makes in opposite directions second oil cylinder of swing synchronously with respect to left rocking arm.
Improve as another kind, it comprises also around the outer peripheral face of described left takeoff output semiaxis and is fixed in the left support sleeve of gear box that second end of described left rocking arm is sheathed on the outer peripheral face of described left support sleeve; And around the outer peripheral face of described right takeoff output semiaxis and be fixed in the right support sleeve of gear box, second end of described right rocking arm is sheathed on the outer peripheral face of described right support sleeve.
After having adopted technique scheme, because second end of described left rocking arm is rotationally around the outer peripheral face of described left takeoff output semiaxis, be provided with first oil cylinder between described left rocking arm and the tractor frame, can control the swing of left rocking arm by first oil cylinder, after adjusting, seal the first in-oil cylinder hydraulic oil by hydraulic control device, make this drive wheel and frame remain on a fixing relative position, thereby realized the diff-H adjusting of two drive wheels by simple structure.Because second end of described right rocking arm is rotationally around the outer peripheral face of described right takeoff output semiaxis, it also comprise be arranged between described right rocking arm and the tractor frame, the right rocking arm of control makes in opposite directions second oil cylinder of swing synchronously with respect to left rocking arm, compare with the diff-H setting device that can only carry out one-sided drive wheel adjustment, it can realize the adjustment of sustained height difference with approximately half oil cylinder stroke, and the axis projection of adjusted two drive wheels in horizontal surface is located along the same line.Because it comprises also around the outer peripheral face of described left takeoff output semiaxis and is fixed in the left support sleeve of gear box that second end of described left rocking arm is sheathed on the outer peripheral face of described left support sleeve; And around the outer peripheral face of described right takeoff output semiaxis and be fixed in the right support sleeve of gear box, second end of described right rocking arm is sheathed on the outer peripheral face of described right support sleeve, so the torque that acts on the left and right rocking arm can not act on left and right takeoff output semiaxis, can not make it be subjected to extra application force, thereby improve the service life of change speed gear box.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the schematic diagram of the embodiment of the invention;
Fig. 2 is the cutaway view of middle rocking arm part embodiment illustrated in fig. 1.
The specific embodiment
A kind of height difference regulating device of tractor driving wheel, as shown in Figure 2, but the left and right rocking arm 3,3 ' that comprises the final transmission case body of double as, described left and right rocking arm 3,3 ' has first end of the left and right driving of being installed on wheel 4,4 ' respectively and around second end of left and right takeoff output semiaxis 11,11 ' outer peripheral face.Left and right takeoff output semiaxis 11,11 ' and left and right driving wheel 4,4 ' between be respectively equipped with left and right final driving device 7,7 ', they can be chain gearing, also can be belt driver or gear system etc.
Left side support sleeve 6 is around the outer peripheral face of described left takeoff output semiaxis 11 and be fixed in gear box 1, and second end of described left rocking arm 3 is sheathed on the outer peripheral face of described left support sleeve 6.Right support sleeve 6 ' is around the outer peripheral face of described right takeoff output semiaxis 11 ' and be fixed in gear box 1, and second end of described right rocking arm 3 ' is sheathed on the outer peripheral face of described right support sleeve 6 '.
As shown in Figure 1, be provided with first oil cylinder 5 of may command left side rocking arm swing between described left rocking arm 3 and the tractor frame 2, be provided with the right rocking arm 3 ' of may command between described right rocking arm 3 ' and the tractor frame 2 and make in opposite directions second oil cylinder 5 ' of swing synchronously with respect to left rocking arm.The hydraulic control device of first oil cylinder 5 and second oil cylinder 5 ' can adopt the position control apparatus that is similar to the tractor hydraulic suspension gear.After relative position is adjusted, seal in-oil cylinder hydraulic oil, make this drive wheel and frame remain on a fixing relative position, thereby realized the diff-H adjusting of two drive wheels by simple structure by hydraulic control device.
The present invention is not limited to above-mentioned embodiment, if second end of left and right rocking arm 3 directly is sheathed on left and right takeoff output semiaxis 11,11 ' outer peripheral face, under the effect of first oil cylinder 5 and second oil cylinder 5 ', also can realize the swing of left and right rocking arm 3, but this moment, the extra application force that left and right takeoff output semiaxis 11,11 ' will be subjected to from rocking arm, thereby the service life of shortening change speed gear box.
In a word, the present invention is simple in structure, low cost of manufacture, each parts is stressed rationally, on the basis of existing walker tractor, directly simply transform, just can make it to be adapted at bigger mountain region of the gradient or intersected country and use, also can be fit to have the Tillage machine for fields and gardens use of two drive wheels.
Claims (4)
1, the height difference regulating device of tractor driving wheel, a but left side that comprises the final transmission case body of double as, right rocking arm (3,3 '), a described left side, right (3,3 ') rocking arm has the left side of being installed on respectively, right drive wheel (4,4 ') first end, with around a left side, right takeoff output semiaxis (11, second end of outer peripheral face 11 '), it is characterized in that: second end of described left rocking arm (3) is rotationally around the outer peripheral face of described left takeoff output semiaxis (11), and it also comprises and being arranged between described left rocking arm (3) and the tractor frame (2), control first oil cylinder (5) of left rocking arm swing.
2, the height difference regulating device of tractor driving wheel as claimed in claim 1, it is characterized in that: it comprises also around the outer peripheral face of described left takeoff output semiaxis (11) and is fixed in the left support sleeve (6) of gear box (1) that second end of described left rocking arm (3) is sheathed on the outer peripheral face of described left support sleeve (6).
3, the height difference regulating device of tractor driving wheel as claimed in claim 1 or 2, it is characterized in that: second end of described right rocking arm (3 ') is rotationally around the outer peripheral face of described right takeoff output semiaxis (11 '), and it also comprises and is arranged between described right rocking arm (3 ') and the tractor frame (2), controls right rocking arm (3 ') and make in opposite directions second oil cylinder (5 ') of swing synchronously with respect to left rocking arm.
4, the height difference regulating device of tractor driving wheel as claimed in claim 3, it is characterized in that: it comprises also around the outer peripheral face of described right takeoff output semiaxis (11 ') and is fixed in the right support sleeve (6 ') of gear box (1) that second end of described right rocking arm (3 ') is sheathed on the outer peripheral face of described right support sleeve (6 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710015713 CN101041327A (en) | 2007-04-29 | 2007-04-29 | Tractor driving wheel height difference regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710015713 CN101041327A (en) | 2007-04-29 | 2007-04-29 | Tractor driving wheel height difference regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101041327A true CN101041327A (en) | 2007-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710015713 Pending CN101041327A (en) | 2007-04-29 | 2007-04-29 | Tractor driving wheel height difference regulating device |
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| Country | Link |
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| CN (1) | CN101041327A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231651A (en) * | 2013-03-22 | 2013-08-07 | 北京林业大学 | Swing type hydraulic adjustable hanging articulated steering chassis |
| CN103407368A (en) * | 2013-03-22 | 2013-11-27 | 北京林业大学 | Hydraulic adjustable cantilever swinging door type drive axle |
| CN108725120A (en) * | 2018-06-04 | 2018-11-02 | 湖南科洋农机制造有限公司 | A kind of chassis height self-checking device of agricultural machinery |
-
2007
- 2007-04-29 CN CN 200710015713 patent/CN101041327A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231651A (en) * | 2013-03-22 | 2013-08-07 | 北京林业大学 | Swing type hydraulic adjustable hanging articulated steering chassis |
| CN103407368A (en) * | 2013-03-22 | 2013-11-27 | 北京林业大学 | Hydraulic adjustable cantilever swinging door type drive axle |
| CN108725120A (en) * | 2018-06-04 | 2018-11-02 | 湖南科洋农机制造有限公司 | A kind of chassis height self-checking device of agricultural machinery |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |