CN203880045U - Gearbox cover of GT 121 walking tractor - Google Patents
Gearbox cover of GT 121 walking tractor Download PDFInfo
- Publication number
- CN203880045U CN203880045U CN201320867535.XU CN201320867535U CN203880045U CN 203880045 U CN203880045 U CN 203880045U CN 201320867535 U CN201320867535 U CN 201320867535U CN 203880045 U CN203880045 U CN 203880045U
- Authority
- CN
- China
- Prior art keywords
- cover body
- shift fork
- gear shift
- turn
- gearbox cover
- 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 - Lifetime
Links
- 238000005266 casting Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract 5
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Abstract
The utility model pertains to the technical field of agricultural mechanical equipment and relates to a gearbox cover of a GT 121 walking tractor in order to resolve the problem that steering transmission fork covers of a gearbox cover of a current GT 121 walking tractor are susceptible to breakage for use. The gearbox cover comprises a gearbox cover body and the two steering transmission fork covers arranged on the gearbox cover body. The gearbox cover body is provided with two steering transmission fork cover installing positions corresponding to the two steering transmission fork covers. The two steering transmission fork covers and the gearbox cover body are of an integral casting structure. By employ of the above technical scheme, the above technical problem is effectively resolved.
Description
Technical field
The utility model belongs to agricultural machinery equipment technical field, relates to a kind of gear shift cover of GT121 hand tractor.
Background technique
GT121 hand tractor is at present Chinese widely used a kind of hand tractor, see Fig. 1, GT121 speed changing box for walking tractor lid comprises and turns to shift fork lid and gear shift cover body, turn to shift fork lid to be bearing on gear shift cover body, shift fork is by turning to the crossover port in shift fork lid to rotate, while rotation due to shift fork, require high to the rigidity that turns to shift fork lid part, machining accuracy also has higher requirement, otherwise, be easy to occur turn to the problem of shift fork lid fracture.
At present, turning to shift fork lid and gear shift cover body is all Split type structure, technician need to turn to shift fork lid to be arranged on gear shift cover body by two, in order to prevent turning to shift fork lid to occur the problem of fracture, existing remedial measure is set up corresponding fastening piece often, to strengthening rigidity and intensity, but effect not obvious.
Model utility content
What the GT121 of being speed changing box for walking tractor to be solved in the utility model covered turns to shift fork lid easily in use to occur the problem of fracture, and a kind of gear shift cover of GT121 hand tractor is provided for this problem, specifically:
A kind of gear shift cover of GT121 hand tractor, comprise gear shift cover body and two of being arranged on gear shift cover body turn to shift fork lid, described gearbox body be provided with two respectively with two turn to shift fork lid corresponding turn to shift fork lid installation position, it is characterized in that described two turn to shift fork lid and gear shift cover body to be integrated cast structure.
The gear shift cover of GT121 hand tractor described in the utility model is an overall structure, comprise that gear shift cover body and two turn to shift fork lid, just as described in the background section, prior art is to turn to shift fork lid as Split type structure gear shift cover body and two, thereby cause the problem of two aspects: first, turn to shift fork to mount cover to be fitted on the precision of gear shift cover body to ensure, in the time turning to shift fork to rotate, can produce the wearing and tearing that turn between shift fork lid and gear shift cover body like this; The second, be fitted on gear shift cover body in order to be conducive to turn to shift fork to mount cover, also need gear shift cover body to install that to turn to the installation position of shift fork lid to carry out milling flat, increase operation and reduced mechanical strength.
The utility model turns to shift fork lid and gear shift cover body to carry out integrally casting shaping by two, there is not the problem of assembling, like this, while turning to shift fork to rotate, turn between shift fork lid and gear shift cover body and do not have wearing and tearing, also do not have in addition milling equality operation, intensity can be greatly improved than the gear shift cover of existing GT121 hand tractor, thereby is not easy to occur turning to shift fork lid to produce in use for some time the problem of slight crack.
Brief description of the drawings
Fig. 1 is an assembling schematic diagram (only showing that turns to a shift fork lid) of the gear shift cover of existing GT121 hand tractor described in embodiment;
Fig. 2 is the structural representation of a kind of GT121 speed changing box for walking tractor lid described in embodiment.
Embodiment
Embodiment
The gear shift cover of existing GT121 hand tractor is shown in Fig. 1, comprise that gear shift cover body 1 and two turn to that in shift fork lid 3(figure, another turns to shift fork lid not show), turn to shift fork lid 3 in a tubular form, gear shift cover body 1 is provided with installs two mounting holes 2 that turn to shift fork lid 3, technician turns to shift fork lid 3 to insert to insert respectively in two mounting holes 2 by two and completes installation, certainly, technician can and turn between shift fork lid 3 at mounting hole 2 and fastening piece is set to increase the fastness of installing.
Described in the present embodiment, the gear shift cover of GT121 hand tractor is shown in Fig. 2, two turn to shift fork lid 5 and gear shift cover body 6 is a cast inblock structure, realizing two, to turn to shift fork lid 5 and the cast inblock structure of gear shift cover body 6 be simple, technician, as long as manufacture corresponding mould, then adopts conventional casting technique casting.
Claims (1)
1. the gear shift cover of a GT121 hand tractor, comprise gear shift cover body and two of being arranged on gear shift cover body turn to shift fork lid, described gearbox body be provided with two respectively with two turn to shift fork lid corresponding turn to shift fork lid installation position, it is characterized in that described two, to turn to shift fork lid and gear shift cover body be the integrally casting structure that the gear shift cover of the existing GT121 hand tractor of strength ratio is improved, and gear shift cover body installed and turned to the installation position of shift fork lid not have milling flat structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867535.XU CN203880045U (en) | 2013-12-25 | 2013-12-25 | Gearbox cover of GT 121 walking tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867535.XU CN203880045U (en) | 2013-12-25 | 2013-12-25 | Gearbox cover of GT 121 walking tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203880045U true CN203880045U (en) | 2014-10-15 |
Family
ID=51680543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320867535.XU Expired - Lifetime CN203880045U (en) | 2013-12-25 | 2013-12-25 | Gearbox cover of GT 121 walking tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203880045U (en) |
Cited By (1)
| 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 |
-
2013
- 2013-12-25 CN CN201320867535.XU patent/CN203880045U/en not_active Expired - Lifetime
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |