CN100519251C - Modified height difference apparatus for tractor driving wheel - Google Patents
Modified height difference apparatus for tractor driving wheel Download PDFInfo
- Publication number
- CN100519251C CN100519251C CNB2007100157120A CN200710015712A CN100519251C CN 100519251 C CN100519251 C CN 100519251C CN B2007100157120 A CNB2007100157120 A CN B2007100157120A CN 200710015712 A CN200710015712 A CN 200710015712A CN 100519251 C CN100519251 C CN 100519251C
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- Prior art keywords
- rocking arm
- outer peripheral
- peripheral face
- lever
- takeoff output
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Abstract
The invention discloses a modified high difference device of tractor driving wheel, comprising left and right rockers as final transmission box. The second end of said left rocker is round the outer peripheral face of said left power output semi-shaft and he second end of said right rocker can rotate round the outer peripheral face of said right power output semi-shaft. It also comprises a lever hinged with the tractor frame and a hydraulic cylinder hinged between the tractor frame and lever. The lever is set horizontally along the tractor frame. One end of lever is hinged with the left rocker by a first connecting bar and the other end is hinged with the right rocker by a second connecting bar. 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 walker tractor is fixed on the same axis, can not adjust the relative 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 improved height difference apparatus for tractor driving wheel is provided, and this height difference 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: improved height difference apparatus for tractor driving wheel, the left rocking arm and the right rocking arm that comprise the final transmission case body of double as, be installed on the left takeoff output semiaxis in gearbox body left side, be installed on the right takeoff output semiaxis on gearbox body right side, be provided with the final driving device in a left side between left side takeoff output semiaxis and the left driving wheel, the final driving device in a left side is arranged in the left rocking arm, be provided with right final driving device between right takeoff output semiaxis and the right drive wheel, right final driving device is arranged in the right rocking arm; Described left rocking arm has first end that is installed on left driving wheel and around second end of left takeoff output semiaxis outer peripheral face, described right rocking arm has first end that is installed on right drive wheel and around second end of the outer peripheral face of right takeoff output semiaxis, second end of described left rocking arm is rotationally around the outer peripheral face of described left takeoff output semiaxis, and second end of described right rocking arm is rotationally around the outer peripheral face of described right takeoff output semiaxis; Described height difference apparatus also comprises a lever that is articulated in tractor frame, and be articulated in hydraulic actuating cylinder between tractor frame and the lever, described lever is along the horizontally set of tractor frame, the one end is hinged by first connecting rod and left rocking arm, and its other end is hinged by second connecting rod and right rocking arm.
As a kind of improvement, it also comprises around the outer peripheral face of described left takeoff output semiaxis and is fixed in the left support sleeve of gear box 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 left rocking arm is sheathed on the outer peripheral face of described left support sleeve; Second end of described right rocking arm is sheathed on the outer peripheral face of described right support sleeve.
As a kind of optimal way, the hinge-point of described lever and tractor frame is positioned at the midway location of lever.
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, second end of described right rocking arm is rotationally around the outer peripheral face of described right takeoff output semiaxis; Lever is articulated in tractor frame, hydraulic actuating cylinder is articulated between tractor frame and the lever, described lever is along the horizontally set of tractor frame, the one end is hinged by first connecting rod and left rocking arm, and its other end is hinged by second connecting rod and right rocking arm, so, during the hydraulic actuating cylinder lifting, lever will swing up and down around its hinge-point, and then, drive left rocking arm and the backswing simultaneously of right rocking arm by first connecting rod and second connecting rod.After adjusting,, make two drive wheels and frame remain on a fixing relative position, thus, realized that by simple structure the diff-H of two drive wheels is regulated by the hydraulic oil in the hydraulic control device confining liquid cylinder pressure.
When the hinge-point of described lever and tractor frame was positioned at the midway location of lever, the amplitude of two drive wheel backswings was identical, 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 forward structure scheme drawing of the embodiment of the invention;
Fig. 2 is the cutaway view of middle rocking arm part embodiment illustrated in fig. 1;
Fig. 3 is the schematic diagram of middle lever segment embodiment illustrated in fig. 1.
The specific embodiment
A kind of improved height difference apparatus for tractor driving wheel, shown in Fig. 1 and Fig. 2 are common, but the left rocking arm 3 and the right rocking arm 3 ' that comprise the final transmission case body of double as, described left rocking arm 3 and right rocking arm 3 ' have first end that is installed on left driving wheel 4 and right drive wheel 4 ' respectively and around second end of the outer peripheral face of left takeoff output semiaxis 11 and right takeoff output semiaxis 11 '.Be respectively equipped with final driving device 9 in a left side and right final driving device 9 ' between left side takeoff output semiaxis 11 and right takeoff output semiaxis 11 ' and left driving wheel 4 and the right drive wheel 4 ', 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 '.
Shown in Fig. 1 and Fig. 3 are common, this height difference apparatus also comprises a lever 7 that is articulated in tractor frame 2, and be articulated in hydraulic actuating cylinder 5 between tractor frame 2 and the lever 7, described lever 7 is along the horizontally set of tractor frame 2, the one end is hinged by first connecting rod 8 and left rocking arm 3, and its other end is hinged by second connecting rod 8 ' and right rocking arm 3 '.Described lever 7 and the preferential position intermediate of selecting to be positioned at lever 7 of the hinge-point of tractor frame 2, like this, the amplitude of two drive wheel backswings is identical, and the axis projection of adjusted two drive wheels in horizontal surface is located along the same line.
The present invention is not limited to above-mentioned embodiment, for example, second end of left side rocking arm 3 and right rocking arm 3 ' directly is sheathed on the outer peripheral face of left takeoff output semiaxis 11 and right takeoff output semiaxis 11 ', also can realize: during the hydraulic actuating cylinder lifting, lever swings up and down around its hinge-point, and then, drive left rocking arm and the backswing simultaneously of right rocking arm by first connecting rod and second connecting rod.But this moment, left takeoff output semiaxis 11 and right takeoff output semiaxis 11 ' will be subjected to the extra application force from left and right rocking arm, thereby shorten the service life of 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 (3)
1, improved height difference apparatus for tractor driving wheel, the left rocking arm (3) and the right rocking arm (3 ') that comprise the final transmission case body of double as, be installed on the left takeoff output semiaxis (11) in gearbox body (1) left side, be installed on the right takeoff output semiaxis (11) on gearbox body (1) right side ', be provided with the final driving device (6) in a left side between left side takeoff output semiaxis (11) and the left driving wheel (4), the final driving device (6) in a left side is arranged in the left rocking arm (3), be provided with right final driving device (6 ') between right takeoff output semiaxis (11 ') and the right drive wheel (4 '), right final driving device (6 ') is arranged in the right rocking arm (3 '); Described left rocking arm (3) has first end that is installed on left driving wheel (4) and around second end of the outer peripheral face of left takeoff output semiaxis (11), described right rocking arm (3 ') has first end that is installed on right drive wheel (4 ') and around second end of the outer peripheral face of right takeoff output semiaxis (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 second end of described right rocking arm (3 ') is rotationally around the outer peripheral face of described right takeoff output semiaxis (11 '); Described height difference apparatus also comprises a lever (7) that is articulated in tractor frame (2), and be articulated in hydraulic actuating cylinder (5) between tractor frame (2) and the lever (7), described lever (7) is along the horizontally set of tractor frame (2), the one end is hinged by first connecting rod (8) and left rocking arm (3), and its other end is hinged by second connecting rod (8 ') and right rocking arm (3 ').
2, improved height difference apparatus for tractor driving wheel as claimed in claim 1, it is characterized in that: it also comprises 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) and around the outer peripheral face of described right takeoff output semiaxis (11 ') and be fixed in the right support sleeve (6 ') of gear box (1); Second end of described left rocking arm (3) is sheathed on the outer peripheral face of described left support sleeve (6); Second end of described right rocking arm (3 ') is sheathed on the outer peripheral face of described right support sleeve (6 ').
3, improved height difference apparatus for tractor driving wheel as claimed in claim 2 is characterized in that: the hinge-point of described lever (7) and tractor frame (2) is positioned at the midway location of lever (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100157120A CN100519251C (en) | 2007-04-29 | 2007-04-29 | Modified height difference apparatus for tractor driving wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100157120A CN100519251C (en) | 2007-04-29 | 2007-04-29 | Modified height difference apparatus for tractor driving wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101041326A CN101041326A (en) | 2007-09-26 |
| CN100519251C true CN100519251C (en) | 2009-07-29 |
Family
ID=38807196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100157120A Expired - Fee Related CN100519251C (en) | 2007-04-29 | 2007-04-29 | Modified height difference apparatus for tractor driving wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100519251C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862884A (en) * | 2016-12-31 | 2017-06-20 | 惠州市毅隆机电设备有限公司 | A kind of cushion rubber sorting equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3792748A (en) * | 1972-01-18 | 1974-02-19 | Excel Ind | Anti-overturning implement vehicle |
-
2007
- 2007-04-29 CN CNB2007100157120A patent/CN100519251C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3792748A (en) * | 1972-01-18 | 1974-02-19 | Excel Ind | Anti-overturning implement vehicle |
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| Publication number | Publication date |
|---|---|
| CN101041326A (en) | 2007-09-26 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20090729 Termination date: 20110429 |