CN201961366U - Walking tractor steering mechanism - Google Patents
Walking tractor steering mechanism Download PDFInfo
- Publication number
- CN201961366U CN201961366U CN2011200151978U CN201120015197U CN201961366U CN 201961366 U CN201961366 U CN 201961366U CN 2011200151978 U CN2011200151978 U CN 2011200151978U CN 201120015197 U CN201120015197 U CN 201120015197U CN 201961366 U CN201961366 U CN 201961366U
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- CN
- China
- Prior art keywords
- gear
- transmission shaft
- right steering
- gearbox body
- steering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a walking tractor steering mechanism comprising a transmission shaft rotatably assembled in a gear case. A central driving gear is fixed on the transmission shaft in the radial direction; a left steering gear and a right steering gear are respectively sheathed on the transmission shaft at two sides of the central driving gear in a sliding way; and for the left and the right steering gears, the inner tooth diameters are larger than the outer tooth diameters. The walking tractor steering mechanism is improved on the existing Emei 71 type gear case, and the inner tooth diameters of the left and the right steering gears are enlarged, so that the reacting force on inner teeth of the left and the right steering gears is reduced, therefore, the abrasion speed of the inner teeth is reduced, and the service life of the left and the right steering gears is prolonged; and as the reacting force on the inner teeth is reduced, a left shifting fork and a right shifting fork can separate the left and the right steering gears easily, thereby solving the problem that a steering mechanism is difficult to steer and the steering gears are damaged at the early stage.
Description
Technical field
The utility model relates to a kind of walker tractor steering hardware.
Background technology
Because going down town in a large number of China rural migrant worker caused present rural laborer's resource comparatively nervous at present, labor cost improves.For raising labour efficiency, the diesel motor of 12-15 horsepower is directly installed as power in many areas on the walker tractor of existing 8-10 horsepower.Existing walker tractor is to realize turn inside diameter by the control steering gear with making two side drive wheel generation speed discrepancy separating of center driven gear.The patent No. is that the Chinese utility model patent specification sheets of ZL200520116510.1 discloses a kind of small hand tractor internal-gear type steering hardware, this steering hardware comprises the center driven gear that radially is fixed on the transmission shaft, on the transmission shaft of the both sides of center driven gear respectively slip cap a left side is housed, the right steering gear, a left side, the right steering gear is in transmission connection with the internal gearing that center driven gear both sides are provided with respectively, a left side, the outside of right steering gear is respectively by the external tooth left side that has been connected by meshing transmission, right reducing gear, a left side, right reducing gear correspondence respectively is connected with and a left side, the left side of the coaxial setting of right wheel, right driven wheel, a left side, interior tooth diameter on the right steering gear is not more than its outer tooth diameter.Correspondence is connected with left and right shift fork respectively on left and right steering gear, and left and right shift fork is connected with left and right steering tiller by the corresponding left and right spindle arm that is provided with respectively.During use, left and right steering tiller slides left and right steering gear respectively by the left and right shift fork that turns to of cooresponding left and right spindle arm control along transmission shaft, control walker tractor with center driven gear formation clutch transmission and turn to.But increase along with walker tractor power, wheel also increases the antagonistic force of steering hardware thereupon, trac. is faced the antagonistic force of wheel from a left side in steering procedure, right driven wheel is by a left side, right reducing gear is delivered to a left side, in the time of on the right steering gear, because the left side in the existing steering hardware, interior tooth diameter on the right steering gear is less than or equal to the diameter of its external tooth, make this antagonistic force from a left side, when the external tooth of right steering gear is delivered on the internal tooth, internal tooth has been subjected to being not less than the application force of external tooth, shift fork is separating a center driven gear and a left side on the one hand, difficulty more becomes during the right steering gear, cause the steering operation of walker tractor comparatively difficult, the rate of wear that makes internal tooth on the other hand is greater than external tooth, cause the infantile failure of steering gear, the internal tooth disengagement automatically of walker tractor steering gear and center driven gear mesh when normal walking, can't guarantee the normal delivery of power, directly influenced the normal operation of walker tractor, the hidden danger that also causes simultaneously.
The utility model content
The purpose of this utility model is: provide a kind of walker tractor steering hardware, to solve the problem of existing walker tractor steering box difficulty, the easy infantile failure of steering gear.
The technical solution of the utility model is: a kind of walker tractor steering hardware, comprise and rotate the transmission shaft that is assemblied in the gearbox body, the two ends of corresponding transmission shaft offer respectively and turn to mounting hole on the gearbox body, positioning and fixing has end cap on the outer wall of gearbox body, the inboard of end cap is axially arranged with and is located in the bearing seat that turns in the mounting hole, on transmission shaft, radially be fixed with the center driven gear, slip cap is equipped with a left side respectively on the transmission shaft of center driven gear both sides, the right steering gear, a described left side, the right steering gear comprises with the center driven gear mesh answers the internal tooth of engaged transmission and the external tooth of the reducing gear that is used to be in transmission connection, it is characterized in that described interior tooth diameter is greater than outer tooth diameter.
Corresponding left and right transmission gear is respectively arranged with shift fork on described gearbox body, and the width between centers between described two shift forks is 60-80mm.
The mounting hole diameter that turns at corresponding transmission shaft two ends is 69-71mm on the described gearbox body.
The utility model is the improvement of carrying out on existing high eyebrow 71 type gearbox bodys, because it has strengthened a left side, the diameter of internal tooth on the right steering gear, it is worked as antagonistic force and is delivered to a left side, in the time of on the right steering gear, a left side, the right steering gear has played a reducing gear effect, be that antagonistic force is delivered to the bigger internal tooth of diameter from the less external tooth of diameter, thereby reduced a left side, the antagonistic force that internal tooth on the right steering gear is subjected to, not only slowed down the rate of wear of internal tooth, prolonged a left side, the service life of right steering gear, and because the antagonistic force that internal tooth is subjected to reduces to make left, right shift fork is separating a left side, become during the right steering gear easily, overcome the problem that existing steering hardware turns to difficulty and steering gear infantile failure.
Description of drawings
Fig. 1 is the structural representation of the utility model walker tractor steering hardware specific embodiment.
The specific embodiment
The specific embodiment of walker tractor steering hardware of the present utility model as shown in Figure 1, present embodiment is example with existing walker tractor with high eyebrow 71 type gearbox bodys, it comprises gearbox body 1, in gearbox body 1, be rotatably equipped with transmission shaft 2 by the bearing seat that fixedly is assemblied on its both sides box wall, wherein, on the relative both sides sidewall of gearbox body 1, offer the coaxial mounting hole that turns to respectively, corresponding two turn to mounting hole to be fixed with roller bearing end cap 9 respectively on the outer wall of gearbox body 1,9 ', two bearings end cap 9, axially be provided with respectively on 9 ' the opposed inside end face and be located in correspondence and turn to bearing seat in the mounting hole, be respectively fitted with bearing 6 in the diaxon bearing with transmission shaft 2 two ends corresponding matching, 6 '.Radially be fixed with the center driven gear 5 of the driving engine that is used to be in transmission connection at the middle part of transmission shaft 2, slip cap is equipped with left and right steering gear 3,3 ' respectively on the turning cylinder 2 of center driven gear 5 both sides, in left and right steering gear 3,3 ' the outside respectively and be top-loaded with between the cooresponding roller bearing end cap 9,9 ' and turn to spring.On the end cap of gearbox body 1, to should being rotatably equipped with left and right shift fork 8,8 ' respectively by left and right steering gear 3,3 ', radially be fixed with the left and right connecting arm 10,10 ' that turns to that is used to connect left and right steering tiller respectively on the left and right shift fork 8,8 '.Be respectively arranged with the internal tooth 4,4 ' that is connected by meshing transmission with center driven gear 5 in left and right steering gear 3,3 ' opposed inside, be respectively arranged with the external tooth 7,7 ' of the left and right reducing gear (figure does not look out) that is used for being in transmission connection in left and right steering gear 3,3 ' the outside, wherein, the internal tooth on the left and right steering gear 3,3 ' 4,4 ' diameter are greater than external tooth 7,7 ' diameter.Owing to strengthened internal tooth 4,4 ' diameter, make it in steering procedure, work as antagonistic force and be delivered to a left side, right steering gear 3, in the time of on 3 ', a left side, right steering gear 3,3 ' has played a reducing gear effect, be that antagonistic force is from the less external tooth 7 of diameter, 7 ' is delivered to the bigger internal tooth of diameter 4,4 ', thereby reduced a left side, right steering gear 3, internal tooth 4 on 3 ', 4 ' the antagonistic force that is subjected to, not only slowed down internal tooth 4,4 ' the rate of wear, prolonged a left side, right steering gear 3,3 ' service life, and because internal tooth 4,4 ' the antagonistic force that is subjected to reduces to make left, right shift fork 8,8 ' is separating a left side, right steering gear 3, become in the time of 3 ' easily, overcome the problem that existing steering hardware turns to difficulty and steering gear infantile failure.
In actual applications, for existing high eyebrow 71 type gearbox bodys, it is owing to be subjected to the scantling of structure restriction of gearbox body, can not be encased in turning in the mounting hole of change speed gear box after two steering gears 3,3 ' fit together with center driven gear 5 and steering shaft 2 from the inner chamber of gearbox body 1.After can only earlier center driven gear 5 and steering shaft 2 being fitted together, from the inner chamber of gearbox body 1 the turning in the mounting hole of gearbox body 1 of packing into, and then with two steering gears 3,3 ' cooresponding turning on the steering shaft 2 of packing into outside the mounting hole from gearbox body 1, so the internal tooth 4 on left and right two steering gears 3,3 ', 4 ' diameter can not be greater than the crossover port diameter of gearbox body.And the utility model has been owing to increased the internal tooth 4 on the left and right steering gear 3,3 ', 4 ' diameter, therefore the dimensional restriction of existing gearbox body transmission shaft 2 and center driven gear 5 and left and right steering gear 3,3 ' assembling.For overcoming the restriction on this size, in the utility model with the cooresponding enlarged diameter 3-5mm that turns to mounting hole on gearbox body 1 two opposite side walls, make its diameter reach 69-71mm, during assembling, earlier center driven gear 5 is fixed on the transmission shaft 2, after then left and right steering gear 3,3 ' being sleeved on transmission shaft 2 together, can pack into from the inner chamber medium dip of gearbox body 1 easily.Simultaneously, increase the distance between two shift forks 8,8 ', make the width between centers between two shift forks 8,8 ' reach 60-80mm, with prevent two shift forks 8,8 ' and dilated diameter after left and right steering gear 3,3 ' between produce and interfere, guarantee left and right steering gear 3,3 ' with center driven gear 5 between the normal operation of clutch rotation.
Claims (3)
1. walker tractor steering hardware, comprise and rotate the transmission shaft that is assemblied in the gearbox body, the two ends of corresponding transmission shaft offer respectively and turn to mounting hole on the gearbox body, positioning and fixing has end cap on the outer wall of gearbox body, the inboard of end cap is axially arranged with and is located in the bearing seat that turns in the mounting hole, on transmission shaft, radially be fixed with the center driven gear, slip cap is equipped with a left side respectively on the transmission shaft of center driven gear both sides, the right steering gear, a described left side, the right steering gear comprises with the center driven gear mesh answers the internal tooth of engaged transmission and the external tooth of the reducing gear that is used to be in transmission connection, it is characterized in that described interior tooth diameter is greater than outer tooth diameter.
2. walker tractor steering hardware according to claim 1 is characterized in that, corresponding left and right transmission gear is respectively arranged with shift fork on described gearbox body, and the width between centers between described two shift forks is 60-80mm.
3. walker tractor steering hardware according to claim 1 and 2 is characterized in that, the mounting hole diameter that turns at corresponding transmission shaft two ends is 69-71mm on the described gearbox body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011200151978U CN201961366U (en) | 2010-11-28 | 2011-01-18 | Walking tractor steering mechanism |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201020630483 | 2010-11-28 | ||
CN201020630483.0 | 2010-11-28 | ||
CN2011200151978U CN201961366U (en) | 2010-11-28 | 2011-01-18 | Walking tractor steering mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201961366U true CN201961366U (en) | 2011-09-07 |
Family
ID=44523899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2011200151978U Expired - Fee Related CN201961366U (en) | 2010-11-28 | 2011-01-18 | Walking tractor steering mechanism |
Country Status (1)
Country | Link |
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CN (1) | CN201961366U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103727208A (en) * | 2013-12-25 | 2014-04-16 | 南宁市南北动力有限公司 | Speed changing box cover of GT121 walking tractor |
CN114633799A (en) * | 2022-04-13 | 2022-06-17 | 盐城工业职业技术学院 | Fast-assembling type farm tractor electric reversing device |
-
2011
- 2011-01-18 CN CN2011200151978U patent/CN201961366U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103727208A (en) * | 2013-12-25 | 2014-04-16 | 南宁市南北动力有限公司 | Speed changing box cover of GT121 walking tractor |
CN114633799A (en) * | 2022-04-13 | 2022-06-17 | 盐城工业职业技术学院 | Fast-assembling type farm tractor electric reversing device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20150118 |
|
EXPY | Termination of patent right or utility model |