CN202732863U - Speed-change mechanism for mini-tiller - Google Patents
Speed-change mechanism for mini-tiller Download PDFInfo
- Publication number
- CN202732863U CN202732863U CN 201220339755 CN201220339755U CN202732863U CN 202732863 U CN202732863 U CN 202732863U CN 201220339755 CN201220339755 CN 201220339755 CN 201220339755 U CN201220339755 U CN 201220339755U CN 202732863 U CN202732863 U CN 202732863U
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- CN
- China
- Prior art keywords
- gear
- shaft
- driven
- triple
- driven shaft
- 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 relates to an agricultural mini-tiller for farming paddy fields and dry lands, in particular to a speed-change mechanism for a mini-tiller. The speed-change mechanism comprises a driving shaft, a driven shaft, a reversing shaft, a shift shaft and an output shaft, wherein the driving shaft is provided with a belt driven wheel and a driving triple gear which can move axially along the driving shaft; the driven shaft is provided with a clutch gear capable of moving along the axial direction of the driven shaft, a driven triple gear which is rotationally matched with the driven shaft, and a driven shaft output gear fixed on the driven shaft; the reversing shaft is provided with a reverse gear; the shift shaft is provided with a shifting yoke; the output shaft is provided with the driving gear which is normally meshed with the driven shaft output gear; the driving triple gear is provided with a sliding chute which is matched with the shifting yoke; the driving triple gear is separately and correspondingly meshed with the driven triple gear under the action of the shifting yoke; and the side face of the driven shaft triple gear is provided with a neck which can be clamped integrally with the clutch gear. The speed-change mechanism has the advantages of multiple gears, simple structure and high reliability.
Description
Technical field
The utility model relates to a kind of agricultural cultivation machinery for farming paddy field, nonirrigated farmland, is specifically related to the gear of microtilling machine.
Background technique
In surface slope larger rolling country and mountain area, and in the underwater cultivation of fritter, large-scale farm machinery can't be brought into play its power, more is to use manpower or animal power, and labor intensity is large, and manufacturing efficiency is low.For this present situation, agricultural microtilling machine has appearred at present.In the prior art, exist following deficiency: 1, the speed change gear of existing most of microtilling machine is less, only for cultivated land gear need to be set, speed changes underaction, can't finish preferably the demands such as trench digging, ridging, in addition because gear is few, its place beyond cultivated land, slower such as travelling speed on the road surface; 2, even the minority microtilling machine is provided with a plurality of gears, but these gears are provided with a plurality of transmission shafts usually, not only cause its volume of speed change larger, and are comparatively heavy, and complicated structure causes gear to cause its reliable sexual intercourse lower.
The model utility content
It is many that the technical problems to be solved in the utility model provides a kind of gear, simple in structure, the gear shift mechanism for mini-tiller that reliability is high.
In order to address the above problem, the utility model provides a kind of gear shift mechanism for mini-tiller, include driving shaft, driven shaft, reverse gear shaft, declutch shift shaft and output shaft, described driving shaft is provided with belt slave wheel and can be along the axially movable active triple gear of driving shaft, described driven shaft is provided with the clutch gear that can move along its axis, driven three teeth that are rotatably assorted with it and be fixed on driven shaft output gear on the driven shaft, described reverse gear shaft is provided with reverse gear, described declutch shift shaft is provided with selector fork, and described output shaft is provided with the actuation gear with the normal engagement of driven shaft output gear; Initiatively triple gear is provided with the chute that matches with selector fork, this initiatively triple gear under the effect of selector fork with the single corresponding engagement of driven triple gear, described reverse gear can move axially and matches with active triple gear and driven triple gear simultaneously along reverse gear shaft, and described driven shaft triple gear side is provided with the draw-in groove that can become with the clutch gear clamping integral body.
Adopt the gear shift mechanism for mini-tiller of technique scheme to have following advantage: 1, since initiatively triple gear under the effect of selector fork with the single corresponding engagement of driven triple gear, reverse gear can move axially and matches with active triple gear and driven triple gear simultaneously along reverse gear shaft, so that gear has a gear, two gears, three gears three advance gear and the gears that reverse gear, gear is more, can satisfy the speed requirement under the different condition; 2, owing to only being provided with driving shaft, driven shaft, reverse gear shaft and four axles of declutch shift shaft, and adopted the structure of three teeth, whole gear are in the situation that satisfy the microtilling machine demand, simple structure, and than existing many gears gear, its reliability is higher.
As preferred version, in order to guarantee to shift gears initiatively triple gear along driving shaft convenience in axial sliding, improve simultaneously initiatively triple gear and driven driven off by shaft reliability, the axial centre of described active triple gear is provided with teeth groove, and the surface of described driving shaft is provided with the bar shaped tooth that cooperates with teeth groove.This is so that the driving shaft triple gear is stirred easilyer, and simultaneously the area of contact of bar shaped tooth and teeth groove is also larger, has improved the reliability of power transmission.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model embodiment gear shift mechanism for mini-tiller;
Fig. 2 is the main TV structure schematic diagram of Fig. 1.
Embodiment
As illustrated in fig. 1 and 2, the utility model provides a kind of gear shift mechanism for mini-tiller, include driving shaft 1, driven shaft 2, reverse gear shaft 3, declutch shift shaft 4 and output shaft 5, driving shaft 1 is provided with belt slave wheel 11 and can be along driving shaft 1 axially movable active triple gear 12, driven shaft 2 is provided with the clutch gear 21 that can move along its axis, driven three teeth 22 that are rotatably assorted with it and be fixed on driven shaft output gear 23 on the driven shaft, reverse gear shaft 3 is provided with reverse gear 31, declutch shift shaft 4 is provided with selector fork 41, and output shaft 5 is provided with the actuation gear 51 with the 23 normal engagements of driven shaft output gear.
Initiatively the axial centre of triple gear 12 is provided with teeth groove, the surface of driving shaft 1 is provided with the bar shaped tooth 14 that cooperates with teeth groove, initiatively triple gear 12 is provided with the chute that matches with selector fork 41, initiatively triple gear 12 slides a distance along bar shaped tooth 14 under the effect of selector fork 41, thereby realize single corresponding engagement with driven triple gear 22, realize a gear, two gears and three gears that advance of three gears; Reverse gear 31 can move axially along reverse gear shaft 3, and moves reverse gear 31 simultaneously bridge joint active triple gear 12 and driven triple gear 22 when being in neutral, thereby changes the sense of rotation of driven shaft output gear 23, realizes reversing gear; Driven shaft triple gear 22 sides are provided with the draw-in groove that can become with clutch gear 21 clampings whole, by mobile clutch gear 21, can realize driven shaft triple gear 22 and transmission of power to driven shaft 2, thereby reach combined effect.
Above-described only is preferred implementation of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement, such as the corresponding engaging gear that passes through on increase or minimizing main shaft and the countershaft, to increase or to reduce gear; these also should be considered as protection domain of the present utility model, and these can not affect effect and practical applicability that the utility model is implemented.
Claims (2)
1. gear shift mechanism for mini-tiller, include driving shaft, driven shaft, reverse gear shaft, declutch shift shaft and output shaft, it is characterized in that: described driving shaft is provided with belt slave wheel and can be along the axially movable active triple gear of driving shaft, described driven shaft is provided with the clutch gear that can move along its axis, driven three teeth that are rotatably assorted with it and is fixed on driven shaft output gear on the driven shaft, described reverse gear shaft is provided with reverse gear, described declutch shift shaft is provided with selector fork, and described output shaft is provided with the actuation gear with the normal engagement of driven shaft output gear; Initiatively triple gear is provided with the chute that matches with selector fork, this initiatively triple gear under the effect of selector fork with the single corresponding engagement of driven triple gear, described reverse gear can move axially and matches with active triple gear and driven triple gear simultaneously along reverse gear shaft, and described driven shaft triple gear side is provided with the draw-in groove that can become with the clutch gear clamping integral body.
2. gear shift mechanism for mini-tiller as claimed in claim 1 is characterized in that, the axial centre of described active triple gear is provided with teeth groove, and the surface of described driving shaft is provided with the bar shaped tooth that cooperates with teeth groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339755 CN202732863U (en) | 2012-07-13 | 2012-07-13 | Speed-change mechanism for mini-tiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339755 CN202732863U (en) | 2012-07-13 | 2012-07-13 | Speed-change mechanism for mini-tiller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732863U true CN202732863U (en) | 2013-02-13 |
Family
ID=47658564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220339755 Expired - Fee Related CN202732863U (en) | 2012-07-13 | 2012-07-13 | Speed-change mechanism for mini-tiller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732863U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102763502A (en) * | 2012-07-13 | 2012-11-07 | 江伟 | Mini-cultivator speed-change mechanism |
| CN111615871A (en) * | 2020-05-29 | 2020-09-04 | 重庆舰帏机械有限公司 | Transmission for four-wheel-drive mini-tiller |
| CN111623093A (en) * | 2020-05-29 | 2020-09-04 | 重庆舰帏机械有限公司 | Small four-wheel-drive mini-tiller |
-
2012
- 2012-07-13 CN CN 201220339755 patent/CN202732863U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102763502A (en) * | 2012-07-13 | 2012-11-07 | 江伟 | Mini-cultivator speed-change mechanism |
| CN111615871A (en) * | 2020-05-29 | 2020-09-04 | 重庆舰帏机械有限公司 | Transmission for four-wheel-drive mini-tiller |
| CN111623093A (en) * | 2020-05-29 | 2020-09-04 | 重庆舰帏机械有限公司 | Small four-wheel-drive mini-tiller |
| CN111615871B (en) * | 2020-05-29 | 2022-04-26 | 重庆舰帏机械有限公司 | Transmission for four-wheel-drive mini-tiller |
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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: 20140713 |
|
| EXPY | Termination of patent right or utility model |