CN202579980U - Speed changing box driven by push-and-pull flexible shaft for gear shifting - Google Patents
Speed changing box driven by push-and-pull flexible shaft for gear shifting Download PDFInfo
- Publication number
- CN202579980U CN202579980U CN 201220215045 CN201220215045U CN202579980U CN 202579980 U CN202579980 U CN 202579980U CN 201220215045 CN201220215045 CN 201220215045 CN 201220215045 U CN201220215045 U CN 201220215045U CN 202579980 U CN202579980 U CN 202579980U
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- China
- Prior art keywords
- gear
- shift
- shifting fork
- box
- shift fork
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- Expired - Lifetime
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Abstract
The utility model belongs to the technical field of agricultural machines and relates to a speed changing box driven by a push-and-pull flexible shaft for gear shifting. The speed changing box comprises a speed changing box body, a gear shaft, a change gear and a shifting fork which shifts the change gear for gear shifting, a shifting fork shaft box is arranged upwards in an extending mode on an opening arranged on an upper cover of the speed changing box, more than one group of trough holes are arranged correspondingly on two side walls which are opposite to the middle portion of the shifting fork shaft box, a shifting fork shaft penetrates through each group of through holes, a short driving lever is connected fixedly with the shifting fork shaft stretching into the shifting fork shaft box, the lower end of the short driving lever is connected with the shifting fork which shifts the change gear, one end of the shifting fork shaft extending out of the shifting fork shaft box is provided with a cardan joint which can be connected with a speed changing operation device, the inner side of the inner wall of each through hole is provided with a circular oil groove, the outer side is provided with a circular sealing groove, a sealing ring is arranged in the circular sealing groove, a shifting fork box cover is arranged at the upper end of the shifting fork shaft box, an oil injection nozzle which is communicated with each of circular oil grooves is arranged on the shifting fork box cover, and the speed changing box is applicable to various agricultural machines.
Description
Technical field
The utility model belongs to agricultural machinery technological field, refers in particular to a kind of gearbox that utilizes the push-and-pull flexible axle to drive gear shift.
Background technique
Front drive axles such as small-sized grain combine have gearbox; Need handle during gearshift be positioned at gear-driven gearbox top operating handle for improving working conditions, require small-sized grain combine band operator cabin, gear shift operating rod fitness for purpose lengthening; Sometimes to process the multi-angle curved shape; Stroke strengthens when not only putting into gear, and the shift control rod bending retrodeviates from original prolong knot center, is given a shock the back and is prone to off-gear.After the engage a gear stroke is big, interfere with miscellaneous part in the operator cabin, optimal ergonomic can not be realized.
Summary of the invention
The purpose of the utility model has provided that a kind of gearshift procedure is smoothly stable, the push-and-pull flexible axle that utilizes of rapid operation drives the gearbox of gear shift.
The purpose of the utility model is achieved in that
Utilize the push-and-pull flexible axle to drive the gearbox of gear shift; Comprise gear shaft, the speed change gear in gearbox casing, the gearbox casing and stir the shift fork of speed change gear with gearshift; Cover on the described gearbox casing to extend upward on the opening of setting and be provided with the shift fork axle box; Correspondingly on the relative two side, the middle part of shift fork axle box be provided with one group of above through hole, in every group of through hole, be equipped with declutch shift shaft, stretch on the declutch shift shaft in the shift fork axle box and be fixedly connected with short driving lever; The lower end of short driving lever is connected with the shift fork of stirring speed change gear; An end that stretches out the outer declutch shift shaft of shift fork axle box is provided with the universal joint that can be connected with gear controller, and the inboard of each through-hole wall all offers annular oil groove, the outside and all offers annular seal groove, is provided with seal ring in the annular seal groove; The upper end of shift fork axle box is provided with the shift fork case lid, and the shift fork case lid is provided with the pump nozzle with each annular oil groove UNICOM.
Above-mentioned through hole is provided with three groups; Three groups of through holes are provided with three declutch shift shafts; Three declutch shift shafts are respectively: high-grade and low-grade declutch shift shaft, second gear and five grades of declutch shift shafts, one grade and third gear declutch shift shaft, every group of through hole is made up of corresponding two through holes that are provided with on the two side relative in the middle part of the shift fork axle box.
Above-mentioned seal ring is the O RunddichtringO.
The outer surface of above-mentioned shift fork axle box sidewall is fixed with and is connected the dunnage that covers on the gearbox casing.
The utility model is compared the outstanding and beneficial technical effects of existing technology:
1, the declutch shift shaft of the utility model can be connected with operating stem through the push-and-pull flexible axle; Operating stem can be installed in the position of driver's easy-to-operat in the operator cabin; Operating stem keeps off combining of speed changing assembly with main shift lever assembly and height, can obtain best human engineering.
2, the utility model is oiling in the annular oil groove through pump nozzle, can guarantee moving flexibly of declutch shift shaft, and resistance is little, and rapid operation engages smoothly process stabilization, the long service life of product in gearshift procedure.
3, the utility model is simple in structure, easy to operate, and cost of production is low, suits on the gearbox of farm machinery (like big-and-middle-sized agricultural machinery and implement), to use.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is loam cake and the structure side view of shift fork axle box of the gearbox casing of the utility model.
Fig. 3 is that A-A of Fig. 2 is to sectional view.
Embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing; Referring to Fig. 1-3: utilize the push-and-pull flexible axle to drive the gearbox of gear shift; Comprise gear shaft, the speed change gear in the gearbox casing, gearbox casing and stir the shift fork of speed change gear, extend upward on the opening that is provided with on the loam cake 1 of described gearbox casing and be provided with shift fork axle box 4, correspondingly on the relative two side, the middle part of shift fork axle box 4 be provided with one group of above through hole with gearshift; In every group of through hole, be equipped with declutch shift shaft 2; Stretch on the declutch shift shaft 2 in the shift fork axle box 4 and be fixedly connected with short driving lever 8, the lower end of short driving lever 8 is connected with the shift fork of stirring speed change gear, and an end that stretches out the declutch shift shaft 2 outside the shift fork axle box 4 is provided with the universal joint 5 that can be connected with gear controller; The inboard of each through-hole wall is opened and is equipped with annular oil groove 9, the outside and all offers annular seal groove; Be provided with seal ring 10 in the annular seal groove, the upper end of shift fork axle box 4 is provided with shift fork case lid 11, and shift fork case lid 11 is provided with the pump nozzle 3 with each annular oil groove 9 UNICOMs; Utilize the oiling in annular oil groove 9 in time of this pump nozzle 3, to keep the accuracy and the rapid operation of lubricity, transmission.
Above-mentioned through hole is provided with three groups, and three groups of through holes are provided with 2, three declutch shift shafts 2 of three declutch shift shafts and are respectively: high-grade and low-grade declutch shift shaft, second gear and five grades of declutch shift shafts, one grade and third gear declutch shift shaft, and to change different gears and speed.
Above-mentioned seal ring 10 is O RunddichtringOs, and the good sealing effect of O RunddichtringO gets final product sealing lubricating oil, can prevent dust again, and low price is convenient to buying, and the user keeps in repair very convenient.
The outer surface of above-mentioned shift fork axle box 4 sidewalls is fixed with the dunnage 12 that is connected on the gearbox casing loam cake 1, and dunnage 12 can be strengthened the intensity of shift fork axle box 4 sidewalls, prevents little the deforming of thickness owing to shift fork axle box 4 sidewalls, influences the accuracy of transmission.
The use of the utility model: the universal joint 5 of the utility model is connected with gear controller through push-and-pull flexible axle 6; Gear controller can be installed in any position of driver's easy-to-operat in the operator cabin; Operation control stick 7; Can drive that speed change gear shifted gears, throw-over through flexible axle, declutch shift shaft 2 short driving levers 8 and shift fork, suit on the gearbox of various agricultural machinery, to use.
The foregoing description is merely the preferred embodiment of the utility model, is not the protection domain that limits the utility model according to this, so: the equivalence that all structures according to the utility model, shape, principle are done changes, and all should be covered by within the protection domain of the utility model.
Claims (4)
1. utilize the push-and-pull flexible axle to drive the gearbox of gear shift; Comprise gear shaft, the speed change gear in gearbox casing, the gearbox casing and stir the shift fork of speed change gear with gearshift; It is characterized in that: cover on the described gearbox casing to extend upward on the opening of setting and be provided with the shift fork axle box; Correspondingly on the relative two side, the middle part of shift fork axle box be provided with one group of above through hole, in every group of through hole, be equipped with declutch shift shaft, stretch on the declutch shift shaft in the shift fork axle box and be fixedly connected with short driving lever; The lower end of short driving lever is connected with the shift fork of stirring speed change gear; An end that stretches out the outer declutch shift shaft of shift fork axle box is provided with the universal joint that can be connected with gear controller, and the inboard of each through-hole wall offers annular oil groove, the outside offers annular seal groove, is provided with seal ring in the annular seal groove; The upper end of shift fork axle box is provided with the shift fork case lid, and the shift fork case lid is provided with the pump nozzle with each annular oil groove UNICOM.
2. the gearbox that utilizes the push-and-pull flexible axle to drive gear shift according to claim 1; It is characterized in that: described through hole is provided with three groups; Three groups of through holes are provided with three declutch shift shafts, and three declutch shift shafts are respectively: high-grade and low-grade declutch shift shaft, second gear and five grades of declutch shift shafts, one grade and third gear declutch shift shaft.
3. the gearbox that utilizes the push-and-pull flexible axle to drive gear shift according to claim 1, it is characterized in that: described seal ring is the O RunddichtringO.
4. according to each described gearbox that utilizes the push-and-pull flexible axle to drive gear shift of claim 1-3, it is characterized in that: the outer surface of described shift fork axle box sidewall is fixed with and is connected the dunnage that covers on the gearbox casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220215045 CN202579980U (en) | 2012-05-14 | 2012-05-14 | Speed changing box driven by push-and-pull flexible shaft for gear shifting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220215045 CN202579980U (en) | 2012-05-14 | 2012-05-14 | Speed changing box driven by push-and-pull flexible shaft for gear shifting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202579980U true CN202579980U (en) | 2012-12-05 |
Family
ID=47249394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220215045 Expired - Lifetime CN202579980U (en) | 2012-05-14 | 2012-05-14 | Speed changing box driven by push-and-pull flexible shaft for gear shifting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202579980U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196993A (en) * | 2014-08-26 | 2014-12-10 | 绛县星源工贸有限公司 | Gear shifting mechanism |
| CN110081154A (en) * | 2019-03-11 | 2019-08-02 | 全椒瑞禾动力机械有限公司 | A kind of gear chamber cover blank and gear chamber cover processing method |
| CN110242741A (en) * | 2019-07-04 | 2019-09-17 | 汪水龙 | A kind of control system of novel advanced multifunctional walking-tractor |
-
2012
- 2012-05-14 CN CN 201220215045 patent/CN202579980U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196993A (en) * | 2014-08-26 | 2014-12-10 | 绛县星源工贸有限公司 | Gear shifting mechanism |
| CN110081154A (en) * | 2019-03-11 | 2019-08-02 | 全椒瑞禾动力机械有限公司 | A kind of gear chamber cover blank and gear chamber cover processing method |
| CN110242741A (en) * | 2019-07-04 | 2019-09-17 | 汪水龙 | A kind of control system of novel advanced multifunctional 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 |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |