CN202732864U - Variable-speed gear shifting transmission device - Google Patents
Variable-speed gear shifting transmission device Download PDFInfo
- Publication number
- CN202732864U CN202732864U CN 201220412712 CN201220412712U CN202732864U CN 202732864 U CN202732864 U CN 202732864U CN 201220412712 CN201220412712 CN 201220412712 CN 201220412712 U CN201220412712 U CN 201220412712U CN 202732864 U CN202732864 U CN 202732864U
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- gear
- countershaft
- main shaft
- tooth
- shaft
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Abstract
The utility model provides a variable-speed gear shifting transmission device which comprises a main shaft, an auxiliary shaft and a gear shifting fork. The variable-speed gear shifting transmission device is characterized in that a first main shaft gear, a second main shaft gear and a main shaft reverse gear, the auxiliary shaft is provided with a first auxiliary shaft gear and a second auxiliary shaft gear, the first auxiliary shaft gear is meshed with the first main shaft gear and the second auxiliary shaft gear is meshed with the second main shaft gear to respectively drive the auxiliary shaft to rotate. The device further comprises a reverse gear shaft which is provided with a reverse gear idler gear and a reverse gear, the reverse gear idler gear is normally meshed with the main shaft reverse gear on the main shaft, and the reverse gear can be meshed with the second auxiliary shaft gear to drive the auxiliary shaft to rotate reversely. The variable-speed gear shifting transmission device is simple in structure, provided with less gears and convenient to manufacture and mount, gear positions are simple to adjust, and qualified mounting precision can be easily adjusted. Further, the gear shifting fork is arranged on the auxiliary shaft to push a duplex gear on the auxiliary shaft to move axially to complete gear shifting, and gear shifting operations are flexible.
Description
Technical field
The utility model relates to the microtilling machine gear shift transmission device of the speed that changes outputting power on a kind of gear shift transmission device, the especially microtilling machine of power plant gearbox and forward, counter-rotating.
Background technique
Motor is the power plant of automobile, motorcycle, microtilling machine etc., fuel (gasoline, diesel oil etc.) passes through in the indoor burning of engine combustion, heat energy is changed into mechanical kinetic energy, through piston, connecting rod, bent axle, speed change gear and power transmission shaft, moment of torsion is transported out driving automobile, motorcycle, microtilling machine walking.In speed change gear, by the engagement of the gear of different gears on main shaft, countershaft and the reverse gear shaft, to change speed and the sense of rotation (forward, counter-rotating) of outputting power.Microtilling machine is because powerdriven needs, and the needs of spatial structure layout, in gearbox, or in the gearbox upper box, be provided with shift gear, reverse gear shaft and reverse gear etc. on shift gear, countershaft and the countershaft on main shaft and the main shaft, under the effect of selector fork, realize the engagement of different shift gears, to change speed and the sense of rotation of outputting power.In the prior art, adapt to the gear shift transmission device of Mini-tiller power transmission needs, complicated structure mostly, shift gear is more, and the location comparison between the install and adjust gear bothers, and difficulty is adjusted to satisfactory installation precision.And gearbox of the prior art, its selector fork are arranged on the main shaft usually, and the shift gear that promotes on the main shaft moves axially to mesh to realize different transmission speeds from the coupling gear of countershaft; But this kind selector fork is arranged on the structure on the main shaft, and gearshift has some setbacks, total is also complicated, and operation is also dumb, is not suitable with the needs of microtilling machine gearshift transmission; And, back fork need to be set be meshed to stir reverse gear, more want the adapted parts such as drag-line, the push-plate that reverses gear that reverse gear, more complicated on the structure.
Summary of the invention
For above-mentioned deficiency of the prior art, main purpose of the present utility model is to overcome the prior art above shortcomings, and provide a kind of simple in structure, shift gear is less, gear shift operation microtilling machine gear shift transmission device flexibly.
The technical solution of the utility model is as follows: microtilling machine gear shift transmission device, comprise main shaft, countershaft and selector fork, and it is characterized in that: be provided with main shaft one tooth, main shaft bidentate and the main shaft tooth that reverses gear at main shaft; Be provided with the first countershaft tooth and the second countershaft tooth at countershaft, the first countershaft tooth and the engagement of main shaft one tooth, the second countershaft tooth and the engagement of main shaft bidentate drive respectively countershaft and rotate; Also comprise reverse gear shaft, be provided with reverse gear idle pulley and reverse gear at reverse gear shaft, the tooth that reverses gear of the main shaft on reverse gear idle pulley and the main shaft often meshes, reverse gear can with the engagement of the second countershaft tooth, drive the countershaft backward rotation.
Further feature is: the first countershaft tooth and the second countershaft tooth are set to duplex-gear.
Selector fork is arranged on the countershaft, can promote the second countershaft tooth and move axially at countershaft, and the second countershaft tooth is meshed with main shaft bidentate and reverse gear respectively.
On countershaft, be provided with bevel gear.
With respect to prior art, microtilling machine gear shift transmission device of the present utility model has following beneficial effect:
1, simple in structure, the shift gear of adapted is less; Be convenient to make and install, the location comparison of adjusting between the gear is simple, and easily adjusts to satisfactory installation precision.
2, selector fork is arranged on the countershaft, and a pair of duplex-gear on the promotion countershaft moves axially and produces gearshift, and gear shift operation is flexible.
3, do not have back fork, adopt selector fork just can realize that reverse gear is meshed, the parts such as the drag-line that more do not need to reverse gear, the push-plate that reverses gear, structure is simplified more.
Description of drawings
Fig. 1 is the structural representation of the utility model transmission device.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, microtilling machine gear shift transmission device is arranged in the gearbox casing, comprises main shaft 1
, countershaft 2 and selector fork, main shaft 1 is connected with the bent axle of motor by clutch etc., and the power of motor is input in the gearbox casing; Be provided with main shaft one tooth 3, main shaft bidentate 4 and the main shaft tooth 5 that reverses gear at main shaft 1, be provided with the first countershaft tooth 6 and the second countershaft tooth 7, the first countershaft teeth 6 and the second countershaft tooth 7 at countershaft 2 and can be set to duplex-gear, be convenient to moving axially.The first countershaft tooth 6 can mesh with main shaft one tooth 3, is top gear, drives countershaft 2 and realizes High Rotation Speed; The second countershaft tooth 7 can mesh with main shaft bidentate 4, is bottom gear, drives countershaft 2 and realizes low speed rotation; Also comprise reverse gear shaft 8, be provided with reverse gear idle pulley 9 and reverse gear 10 at reverse gear shaft 8, idle pulley 9 and main shaft on the main shaft 1 tooth 5 that reverses gear that reverses gear often meshes, drive reverse gear shaft 8 is followed main shaft 1 and is rotated always, reverse gear 10 on the reverse gear shaft 8 can mesh with the second countershaft tooth 7, drive countershaft 2 backward rotation, realize reversing gear.
Described selector fork (not shown in FIG.), be arranged on the countershaft 2, the operator stirs selector fork, and it can promote the second countershaft tooth 7 and move axially at countershaft 2, the second countershaft tooth 7 is meshed with main shaft bidentate 4 and reverse gear 10 respectively, realize slowly running or backward rotation of countershaft 2.If the first countershaft tooth 6 and the second countershaft tooth 7 can be set to duplex-gear, then selector fork promotes simultaneously this duplex-gear and moves axially.Selector fork of the present utility model when producing action, can realize that the shift gear of different rotating speeds is meshed, and more can promote reverse gear and be meshed, and realizes the counter-rotating of countershaft 2.
On countershaft 2, be provided with bevel gear 11, by this bevel gear 11 be arranged on the lower box (not shown) in the engagement of corresponding bevel gear, change the transmission direction (being converted to pivotal axis by horizontal axis) of power, with the relevant power unit of transmission of power to microtilling machine.
Need to prove, above embodiment is only in order to technical solutions of the utility model to be described but not the restriction technologies scheme, although the claimant has been described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, those are made amendment to the technical solution of the utility model or are equal to replacement, and do not break away from aim and the scope of the technical program, all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. microtilling machine gear shift transmission device comprises main shaft (1), countershaft (2) and selector fork, it is characterized in that: be provided with main shaft one tooth (3), main shaft bidentate (4) and the main shaft tooth (5) that reverses gear at main shaft (1); Be provided with the first countershaft tooth (6) and the second countershaft tooth (7) at countershaft (2), the first countershaft tooth (6) and main shaft one tooth (3) engagement, the second countershaft tooth (7) and main shaft bidentate (4) engagement drive respectively countershaft (2) and rotate; Also comprise reverse gear shaft (8), be provided with the idle pulley that reverses gear (9) and reverse gear (10) at reverse gear shaft (8), the main shaft on idle pulley (9) and the main shaft (1) of the reversing gear normal engagement of tooth (5) of reversing gear, reverse gear (10) can mesh with the second countershaft tooth (7), drives countershaft (2) backward rotation.
2. described microtilling machine gear shift transmission device according to claim 1, it is characterized in that: the first countershaft tooth (6) and the second countershaft tooth (7) are set to duplex-gear.
3. described microtilling machine gear shift transmission device according to claim 1, it is characterized in that: described selector fork is arranged on the countershaft (2), can promote the second countershaft tooth (7) and move axially at countershaft (2), the second countershaft tooth (7) is meshed with main shaft bidentate (4) and reverse gear (10) respectively.
4. arbitrary described microtilling machine gear shift transmission device is characterized in that: on countershaft (2), be provided with bevel gear (11) according to claim 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412712 CN202732864U (en) | 2012-08-20 | 2012-08-20 | Variable-speed gear shifting transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412712 CN202732864U (en) | 2012-08-20 | 2012-08-20 | Variable-speed gear shifting transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732864U true CN202732864U (en) | 2013-02-13 |
Family
ID=47658565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220412712 Expired - Fee Related CN202732864U (en) | 2012-08-20 | 2012-08-20 | Variable-speed gear shifting transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732864U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234009A (en) * | 2013-05-15 | 2013-08-07 | 南京金腾重载齿轮箱有限公司 | Gear speed reducer for combined type copper pipe coil drawing machine |
| CN104653721A (en) * | 2013-11-21 | 2015-05-27 | 李斯端 | Mini-tiller variable speed transmission mechanism |
| CN105325087A (en) * | 2015-12-12 | 2016-02-17 | 威马农业机械有限公司 | Forward gear changing mechanism of mini-tiller |
| CN107830125A (en) * | 2017-11-29 | 2018-03-23 | 滁州悦达实业有限公司 | Dynamic power shift gear box |
-
2012
- 2012-08-20 CN CN 201220412712 patent/CN202732864U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234009A (en) * | 2013-05-15 | 2013-08-07 | 南京金腾重载齿轮箱有限公司 | Gear speed reducer for combined type copper pipe coil drawing machine |
| CN104653721A (en) * | 2013-11-21 | 2015-05-27 | 李斯端 | Mini-tiller variable speed transmission mechanism |
| CN105325087A (en) * | 2015-12-12 | 2016-02-17 | 威马农业机械有限公司 | Forward gear changing mechanism of mini-tiller |
| CN107830125A (en) * | 2017-11-29 | 2018-03-23 | 滁州悦达实业有限公司 | Dynamic power shift gear box |
| CN107830125B (en) * | 2017-11-29 | 2023-12-05 | 滁州悦达实业有限公司 | Power shift gearbox |
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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: 20130213 Termination date: 20140820 |
|
| EXPY | Termination of patent right or utility model |