CN202958122U - Farm implement transmission mechanism with excessive torque protection - Google Patents
Farm implement transmission mechanism with excessive torque protection Download PDFInfo
- Publication number
- CN202958122U CN202958122U CN 201220676693 CN201220676693U CN202958122U CN 202958122 U CN202958122 U CN 202958122U CN 201220676693 CN201220676693 CN 201220676693 CN 201220676693 U CN201220676693 U CN 201220676693U CN 202958122 U CN202958122 U CN 202958122U
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- CN
- China
- Prior art keywords
- driving wheel
- transmission mechanism
- driven pulley
- output shaft
- power 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a farm implement transmission mechanism with excessive torque protection. The farm implement transmission mechanism with the excessive torque protection comprises an input shaft and an output shaft, a driving wheel is connected on the input shaft, a driven wheel is connected on the output shaft, the driving wheel and the driven wheel are connected in a transmission mode, and an expansion sleeve is arranged on the driving wheel and clamps the output shaft in a set torque range, or an expansion sleeve is arranged on the driven wheel and clamps the output shaft in the set torque range. Under the condition that resistance and torque of the output shaft and a power source are overlarge and the condition of overload of the output shaft and the power source, the input shaft or the output shaft slips in the expansion sleeve to protect the transmission mechanism and the power source, the service life of the output shaft and the service life of the whole transmission mechanism are prolonged, and moreover the expansion sleeve is convenient to manufacture and disassemble and has good interchangeability.
Description
Technical field
The utility model relates to a kind of farm implements transmission mechanism of crossing torque protection.
Background technology
The transmission device of existing farm implements generally comprises power shaft, a pair of moving runner and output shaft, connects by flat key between axle and wheel; Can effectively provide transmission in the course of the work, but in the situation that output device meets obstructions, moment of torsion is excessive and overload will be destroyed transmission, breaks power source, cause the damage of farm implements workpiece even can't realize transmission.
The utility model content
The technical problem that the utility model solves is to provide a kind of farm implements transmission mechanism that was provided with torque protection.
The utility model solves its technical problem and adopts following technical scheme: a kind of farm implements transmission mechanism of crossing torque protection; comprise power shaft, output shaft; be connected with driving wheel on described power shaft; be connected with driven pulley on described output shaft; described driving wheel and driven pulley are in transmission connection; described driving wheel is provided with expansion sleeve, and described expansion sleeve clamps power shaft in setting torque range.
Further technical scheme is: described expansion sleeve is ring bodies, and described ring bodies is provided with breach, and the described power shaft of cross-under in described ring bodies is by the contraction clamping power shaft of described breach.
Further technical scheme is: the periphery of described ring bodies is provided with projection, and described ring bodies connects driving wheel by described projection.
Further technical scheme is: described expansion sleeve comprises inner sleeve and overcoat, and described inner sleeve and put outward and be equipped with opening puts the described power shaft of cross-under and is connected with driving wheel in described, and described overcoat is clamped between described inner sleeve and driving wheel.
Further technical scheme is: described inner sleeve and put outward and be provided with the conical surface that matches, put in described along being circumferentially with extension, described extension side is provided with can be by the groove of screw thread section, screw connects described extension and driving wheel, and when tightening screw, the conical surface mutually moves and clamps described driving wheel and power shaft.
Another kind of scheme of the present utility model: a kind of farm implements transmission mechanism of crossing torque protection; comprise power shaft, output shaft; be connected with driving wheel on described power shaft; be connected with driven pulley on described output shaft; described driving wheel and driven pulley are in transmission connection; described driven pulley is provided with expansion sleeve, and described expansion sleeve clamps output shaft in setting torque range.
Further technical scheme is: described driving wheel and driven pulley are belt wheel, and described driving wheel connects by belt with driven pulley.
Further technical scheme is: described driving wheel and driven pulley are gear, and described driving wheel and driven pulley are intermeshing.
Further technical scheme is: described driving wheel and driven pulley are sprocket wheel, connect by chain between described driving wheel and driven pulley.
The beneficial effects of the utility model are: described power shaft and driving wheel are in transmission connection by expansion sleeve; perhaps described output shaft and driven pulley are in transmission connection by expansion sleeve; in the situation that output shaft and power source meet obstructions, moment of torsion is excessive and overload power shaft or output shaft skid in expansion sleeve; with protection transmission device and power source; extended the life-span of output shaft and whole transmission mechanism; and expansion sleeve manufacturing and convenient disassembly, and has good interchangeability.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the front view of expansion sleeve in the utility model;
Fig. 3 is the right view of expansion sleeve in the utility model embodiment 1;
Fig. 4 is the right view of expansion sleeve in the utility model embodiment 2.
Embodiment
With reference to figure 1; shown in a kind of farm implements transmission mechanism of crossing torque protection of the utility model; comprise power shaft 1, output shaft 4; be connected with driving wheel 2 and reduction box 7 on described power shaft 1, be connected with driven pulley 3 on described output shaft 4, described output shaft 4 is connected with driven pulley and is connected by key; described driving wheel 2 and driven pulley 3 are in transmission connection; described driving wheel 2 is provided with expansion sleeve 5, and described expansion sleeve 5 clamps power shaft 1 in setting torque range, and described transmission mechanism drives workpiece motion on output shaft 4.Set peak torque according to the intensity of axle and workpiece, during greater than this moment of torsion, power shaft dallies in expansion sleeve.
With reference to figure 1, referring to figs. 2 and 3, embodiment 1: as a kind of preferred structure of above-mentioned expansion sleeve, described expansion sleeve 5 is ring bodies, described ring bodies is provided with breach 51, and the described power shaft 1 of the interior cross-under of described ring bodies 5 is connected ring bodies 5 by screw with driving wheel 2; Projection 53 can be set on the periphery of described ring bodies 5, and described ring bodies 5 connects driving wheel 2 by the connecting hole 52 on described protruding 53, can control the clamping force of the different sizes of size generation of opening by the layout of screw thread.
With reference to figure 4, embodiment 2: as the another kind of frame mode of above-mentioned expansion sleeve, described expansion sleeve comprises inner sleeve 81 and overcoat 82, be equipped with opening on described inner sleeve 81 and overcoat 82, the described power shaft 1 of cross-under and being connected with driving wheel 2 on described inner sleeve 81, described overcoat 82 is clamped between described inner sleeve 83 and driving wheel 2 inner headed faces.
Described inner sleeve 81 and overcoat 82 are provided with the conical surface that matches, and on described inner sleeve 81, along being circumferentially with extension 83, described extension 83 sides are provided with can be by the groove 84 of screw thread section, and screw passes described groove 84 and connects driving wheels 2; By the effect of high-strength bolt, make between inner sleeve 81 and overcoat 82 conical surface mobile described driving wheel and the power shaft of clamping mutually during use, produce huge enclasping force between outer shroud and wheel hub; Realize connecting of driving wheel and power shaft, in order to transfer charge.The use torque-indicating wrench tights a bolt, and reaches the rated moment value.
With reference to figure 1, embodiment 3: as a kind of variation structure of embodiment 1 and 2, described expansion sleeve 5 is set on described driven pulley 3, described expansion sleeve 5 clamps output shaft 4 in setting torque range; Connect by expansion sleeve between described power shaft 1 and driving wheel 2, or connect by key.
Above-mentioned driving wheel 2 and driven pulley 3 are belt wheel, and described driving wheel is connected belt 6 and connects with driven pulley, and the frictional force between described expansion sleeve is greater than the frictional force between belt wheel and belt.
Above-mentioned driving wheel 2 and driven pulley 3 are gear, and described driving wheel and driven pulley are intermeshing.
Above-mentioned driving wheel 2 and driven pulley 3 are sprocket wheel, connect by chain between described driving wheel and driven pulley.
Those skilled in the art can make various changes and distortion to the utility model after knowing principle of the present utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (9)
1. farm implements transmission mechanism of crossing torque protection; comprise power shaft, output shaft; be connected with driving wheel on described power shaft; be connected with driven pulley on described output shaft; described driving wheel and driven pulley are in transmission connection; it is characterized in that: described driving wheel is provided with expansion sleeve, and described expansion sleeve clamps power shaft in setting torque range.
2. a kind of farm implements transmission mechanism of crossing torque protection according to claim 1, it is characterized in that: described expansion sleeve is ring bodies, and described ring bodies is provided with breach, the described power shaft of cross-under in described ring bodies, the contraction by described breach clamps power shaft.
3. a kind of farm implements transmission mechanism of crossing torque protection according to claim 2, it is characterized in that: the periphery of described ring bodies is provided with projection, and described ring bodies connects driving wheel by described projection.
4. a kind of farm implements transmission mechanism of crossing torque protection according to claim 1; it is characterized in that: described expansion sleeve comprises inner sleeve and overcoat; described inner sleeve and put outward and be equipped with opening; put the described power shaft of cross-under in described and be connected with driving wheel, described overcoat is clamped between described inner sleeve and driving wheel.
5. a kind of farm implements transmission mechanism of crossing torque protection according to claim 4; it is characterized in that: described inner sleeve and put outward and be provided with the conical surface that matches; put in described along being circumferentially with extension; described extension side is provided with can be by the groove of screw thread section; screw connects described extension and driving wheel, and when tightening screw, the conical surface mutually moves and clamps described driving wheel and power shaft.
6. farm implements transmission mechanism of crossing torque protection; comprise power shaft, output shaft; be connected with driving wheel on described power shaft; be connected with driven pulley on described output shaft; described driving wheel and driven pulley are in transmission connection; it is characterized in that: described driven pulley is provided with expansion sleeve, and described expansion sleeve clamps output shaft in setting torque range.
7. a kind of farm implements transmission mechanism of crossing torque protection according to claim 6, it is characterized in that: described driving wheel and driven pulley are belt wheel, and described driving wheel connects by belt with driven pulley.
8. a kind of farm implements transmission mechanism of crossing torque protection according to claim 6, it is characterized in that: described driving wheel and driven pulley are gear, and described driving wheel and driven pulley are intermeshing.
9. a kind of farm implements transmission mechanism of crossing torque protection according to claim 6, it is characterized in that: described driving wheel and driven pulley are sprocket wheel, connect by chain between described driving wheel and driven pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220676693 CN202958122U (en) | 2012-12-06 | 2012-12-06 | Farm implement transmission mechanism with excessive torque protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220676693 CN202958122U (en) | 2012-12-06 | 2012-12-06 | Farm implement transmission mechanism with excessive torque protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202958122U true CN202958122U (en) | 2013-06-05 |
Family
ID=48499284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220676693 Withdrawn - After Issue CN202958122U (en) | 2012-12-06 | 2012-12-06 | Farm implement transmission mechanism with excessive torque protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202958122U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103053238A (en) * | 2012-12-06 | 2013-04-24 | 浙江乐客来机械有限公司 | Over-torsion protection farm implement transmission mechanism |
-
2012
- 2012-12-06 CN CN 201220676693 patent/CN202958122U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103053238A (en) * | 2012-12-06 | 2013-04-24 | 浙江乐客来机械有限公司 | Over-torsion protection farm implement transmission mechanism |
| CN103053238B (en) * | 2012-12-06 | 2015-06-03 | 浙江乐客来机械有限公司 | Over-torsion protection farm implement transmission mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130605 Effective date of abandoning: 20150603 |
|
| RGAV | Abandon patent right to avoid regrant |