CN201018768Y - Clutch transmission mechanism of mini-tiller - Google Patents
Clutch transmission mechanism of mini-tiller Download PDFInfo
- Publication number
- CN201018768Y CN201018768Y CNU2007201239689U CN200720123968U CN201018768Y CN 201018768 Y CN201018768 Y CN 201018768Y CN U2007201239689 U CNU2007201239689 U CN U2007201239689U CN 200720123968 U CN200720123968 U CN 200720123968U CN 201018768 Y CN201018768 Y CN 201018768Y
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- Prior art keywords
- clutch
- cam
- transmission shaft
- displacement
- power transmission
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 79
- 238000006073 displacement reaction Methods 0.000 claims abstract description 39
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
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Abstract
The utility model discloses a clutch transmission mechanism of miniature tiller, including belt drive mechanism and dry-type friction clutch, a belt pulley of belt drive mechanism is the clutch dustcoat, clutch dustcoat and transmission shaft sliding fit and axial positioning, clutch center cover and transmission shaft spline fit, the chimb that a supporting disk and clutch center cover circumference set up is cliied the friction disc combination, the cover has thrust bearing and compression spring to make clutch center cover have the space of axial displacement on the transmission shaft between clutch dustcoat and the clutch center cover, the transmission shaft of the clutch center cover other end passes through bearing and supporting disk sliding fit, a displacement cam axial and the bearing contact that is used for pushing away the cam combination of clutch center cover displacement, displacement cam connection control cable, the fixed cam and the support fixed connection of cam combination. The transmission performance is stable, the control operation is convenient, the problem that the service life of the belt is shortened due to the friction between the belt and the stop block is solved, and the universality is realized.
Description
Technical field
The utility model relates to a kind of Miniature cultivator used on higher, particularly a kind of clutch transmission of Miniature cultivator used on higher.
Background technology
The transmission mechanism of Miniature cultivator used on higher on the market generally is by the tape handler transferring power at present, and the control of its transmission of power normally adopts regulating wheel mechanism or centrifugal clutch to control.Wherein, regulating wheel mechanism simple in structure, it is by being provided with regulating wheel between the driving wheel of tape handler and driven pulley, displacement movement by regulating wheel forces belt tension or lax transmission or the interruption that realizes power, but prevent that belt from coming off from driving wheel and driven pulley owing to adopt regulating wheel mechanism that block must be set in the belt periphery, cause to produce in the belt movement process to vibrate simultaneously to produce high temperature, cause the belt life shortening with block generation friction; And in a single day the frictional force of regulating wheel and belt reduce and cause belt creep easily, and the performance of mini-size tillage machine is descended; Simultaneously because the regulating wheel tensile force is big, so in operation tensioning clutch handle, require great effort very much the operator fatiguability.Centrifugal clutch is to control transmission of power by the rotating speed of engine, when in case the engine of Miniature cultivator used on higher is in slow-speed of revolution work, centrifugal clutch just is difficult to finish transmission of power, influence the Miniature cultivator used on higher performance, and centrifugal clutch is because of its reasons in structure, volume is bigger, can only be installed on the driven pulley, can not be installed on the drive pulley, so the Miniature cultivator used on higher that is used as power with diesel engine can not use the centrifugal clutch transferring power, so adopt the shortage versatility of the transmission mechanism of centrifugal clutch.These two kinds of devices all do not influence serviceability because of it does not have dust reduction capability.
Summary of the invention
The purpose of this utility model provides a kind of clutch transmission of Miniature cultivator used on higher, and its transmission performance is stable, and control operation is light, has eliminated belt and block the friction shortening belt problem in service life takes place, and had versatility.
The purpose of this utility model is achieved in that and comprises tape handler and clutch, described clutch is a dry friction clutch, a belt pulley of tape handler is a clutch housing, described clutch housing and power transmission shaft are slidingly matched and axial location, the clutch core cover cooperates with splined driveshaft, the combination of the friction plate of clutch respectively with the internal spline of clutch housing, the external splines of clutch core cover cooperates, the chimb of supporting disk and the setting of clutch core cover circumference is clamped the friction plate combination, being with thrust bearing and compressing spring on the power transmission shaft between clutch housing and the clutch core cover makes clutch core be with the space of axial displacement, the power transmission shaft of the clutch core cover other end is slidingly matched by bearing and supporting disk, a cam combination that is used to promote the displacement of clutch core cover is slidingly matched with power transmission shaft, the displacement camshaft of cam combination is to contacting with bearing, the displacement cam connects the control drag-line, and the cam of deciding of cam combination is fixedlyed connected with support.
Owing to adopted such scheme, the clutch transmission of this Miniature cultivator used on higher adopts tape handler and dry friction clutch structure combining, a belt pulley of tape handler is a clutch housing, because the clutch core of dry friction clutch is enclosed within the tension force effect of compression spring, make the friction plate of the friction plate combination of clutch be in the normal impaction state that contacts and carry out transmission of power with friction shim, even under the slow-revving situation of engine, also can guarantee transmission of power, compare with existing Miniature cultivator used on higher, improved the Miniature cultivator used on higher performance; When needs interrupt transmission of power, only need to handle the control drag-line, drive the displacement cam that being used to of being slidingly matched on the power transmission shaft promote the cam combination of clutch core cover displacement and rotate, just can promote the displacement of clutch core cover friction plate is separated with friction shim, the interruption transmission of power.Especially this transmission mechanism can also use under half-clutch state, has increased the service behaviour of Miniature cultivator used on higher, is that the Miniature cultivator used on higher of existing employing centrifugal clutch is inaccessiable.Because the displacement cam is to promote the displacement of clutch core cover by the bearing that is slidingly matched with power transmission shaft, it is little to rub, move light, rapid operation.Because the dry friction clutch compact conformation of this structure, volume is little, can be used as the driving wheel control transmission of power of tape handler, also can be used as the driven pulley control transmission of power of tape handler, make the transmission mechanism of this Miniature cultivator used on higher have extremely strong versatility, both can be installed on the Miniature cultivator used on higher that is used as power with gasoline engine, and also can be installed on the Miniature cultivator used on higher that is used as power with diesel engine, its performance is unaffected.Adopt the transmission mechanism of this Miniature cultivator used on higher can cancel the peripheral block that is provided with of belt, eliminated to produce in the belt movement process to vibrate simultaneously and the hidden danger that friction produces high temperature has taken place, obtain prolongation the service life of belt with block.Simultaneously,, have stronger dustproof effect, the performance of the Miniature cultivator used on higher of working under mal-condition is guaranteed because of the good airproof performance of dry friction clutch.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Accompanying drawing is a kind of example structure schematic diagram of the present utility model.
In the accompanying drawing, 1 is bolt, and 2 is spring washer, and 3 is packing ring, 4 is radial bearing, and 5 is thrust bearing, and 6 is the clutch core cover, and 7 is friction plate, 8 is friction shim, and 9 is clutch housing, and 10 is circlip, and 11 are the compression spring, 12 is supporting disk, and 13 is thrust bearing, and 14 is outside framework oil seal, and 15 is radial bearing, 16 are the displacement cam, and 17 is power transmission shaft, and 18 is support, 19 is engine, and 20 are the control drag-line, and 21 for deciding cam.
Embodiment
Referring to accompanying drawing, the clutch transmission of this Miniature cultivator used on higher comprises tape handler and clutch.Described clutch is a dry friction clutch, and a belt pulley of tape handler is a clutch housing 9, and the excircle of this clutch housing is provided with the V-type annular groove.Described clutch housing 9 is slidingly matched and axial location with power transmission shaft 17, clutch housing is slidingly matched by bearing and power transmission shaft, a radial bearing 4 and power transmission shaft 17 axle journal matched in clearance are set in the outboard counterbore of clutch housing, and pass through bolt 1 from axle head clutch housing axial location, be lined with spring washer 2 and packing ring 3 between bolt and the radial bearing 4, the seat ring interference fits of the inboard counterbore of clutch housing and a thrust bearing 5, thrust bearing 5 and power transmission shaft 17 matched in clearance.Clutch core cover 6 and power transmission shaft 17 spline fitted, the axis hole of described clutch core cover 6 is a stepped hole, the small end of this stepped hole and power transmission shaft 17 spline fitted, the big end of stepped hole are entangled a compression spring 11, and compression spring 11 is enclosed within on the power transmission shaft 17 adjacent with thrust bearing 5.Thrust bearing 5 that is with on the power transmission shaft 17 between clutch housing 9 and the clutch core cover 6 and compression spring 11 make clutch core be with the space of axial displacement, and the displacement stroke of clutch core cover is about 10mm.The friction plate combination of clutch cooperates with the internal spline of clutch housing, the external splines of clutch core cover respectively, wherein friction plate 7 cooperates with the internal spline of clutch housing, friction shim 8 cooperates with the external splines of clutch core cover, a supporting disk 12 is clamped the friction plate combination with the chimb that clutch core is overlapped 6 circumference settings, and withstand the clutch core cover by the tension force of compression spring 11, make the clutch core cover that friction plate and the friction shim that is arranged alternately in the friction plate combination compressed the applying transferring power.Supporting disk 12 is by circlip 10 axial location that are stuck in the clutch housing inwall annular groove, the power transmission shaft 17 of the clutch core cover other end is slidingly matched by bearing and supporting disk 12, described bearing is two, one of them overlaps 6 adjacent being close to for thrust bearing 13 and clutch core, another is close to for radial bearing 15 and thrust bearing, and two bearings can axially slide in the axis hole of supporting disk along power transmission shaft.A cam combination that is used to promote the displacement of clutch core cover is slidingly matched with power transmission shaft 17, the displacement cam 16 of the described cam combination that is used to promote the displacement of clutch core cover and the cam contour of deciding cam 21 are located at axially, the cam contour of two cams is slidingly matched, displacement cam 16 radial bearings 15 axial and in the supporting disk axis hole of cam combination contact to be close to, be provided with an outside framework oil seal 14 between the one end periphery of supporting disk 12 and displacement cam 16, the cam 21 of deciding of cam combination circumferentially is fixed on the support 18 by key, and in support, support is bolted to connection on engine 19 casings by the step axial location of deciding cam.Described displacement cam 16 connects control drag-line 20 by a torque arm, and the control drag-line is connected with operating grip.The power transmission shaft 17 of present embodiment promptly is the output shaft of engine 19 as driving shaft, and described clutch housing 9 is the driving wheel of tape handler, and the driven pulley of tape handler is connected with the gear-box of Miniature cultivator used on higher by driven shaft.
When the clutch transmission of present embodiment Miniature cultivator used on higher is worked, the power of engine output drives the rotation of clutch core cover by power transmission shaft, the clutch core cover is the driving wheel rotation of tape handler by the friction plate assemblage zone dynamic clutch outer cover of normal applying, belt by tape handler drives the driven pulley rotation thus, driven pulley is given the gear-box of Miniature cultivator used on higher, Miniature cultivator used on higher work by driven shaft with transmission of power.When needing to interrupt transmission of power, by handling the operating grip of control drag-line, the displacement cam of control drag-line pulling cam combination is rotated around power transmission shaft, the displacement cam is in the effect lower edge axial displacement of cam contour, promote clutch core and overlap displacement vertically, the friction plate that friction plate is made up is in friction shim and separates or half-clutch state, temporarily interrupts transmission of power.
Dry friction clutch of the present utility model also can be used for the driven pulley of tape handler, described clutch housing is the driven pulley of tape handler, power transmission shaft is as the gear-box of driven shaft connection Miniature cultivator used on higher, and the driving wheel of tape handler is connected with the output shaft of engine.When the transmission mechanism of Miniature cultivator used on higher is this enforcement state, the power of engine output drives the driving wheel rotation of tape handler by engine output shaft, belt by tape handler drives the driven pulley rotation that clutch housing is a tape handler thus, clutch housing is by normal friction plate assemblage zone dynamic clutch center of fitting and power transmission shaft rotation, give the gear-box of Miniature cultivator used on higher, Miniature cultivator used on higher work by power transmission shaft with transmission of power.When needing to interrupt transmission of power, by handling the operating grip of control drag-line, the displacement cam of control drag-line pulling cam combination is rotated around power transmission shaft, the displacement cam is in the effect lower edge axial displacement of cam contour, promote clutch core and overlap displacement vertically, the friction plate that friction plate is made up is in friction shim and separates or half-clutch state, temporarily interrupts transmission of power.
The clutch transmission of this Miniature cultivator used on higher can be used for the Miniature cultivator used on higher that is used as power with gasoline engine or diesel engine, has stronger versatility.
Claims (8)
1. the clutch transmission of a Miniature cultivator used on higher, comprise tape handler and clutch, it is characterized in that: described clutch is a dry friction clutch, a belt pulley of tape handler is a clutch housing, described clutch housing and power transmission shaft are slidingly matched and axial location, the clutch core cover cooperates with splined driveshaft, the combination of the friction plate of clutch respectively with the internal spline of clutch housing, the external splines of clutch core cover cooperates, the chimb of supporting disk and the setting of clutch core cover circumference is clamped the friction plate combination, being with thrust bearing and compressing spring on the power transmission shaft between clutch housing and the clutch core cover makes clutch core be with the space of axial displacement, the power transmission shaft of the clutch core cover other end is slidingly matched by bearing and supporting disk, a cam combination that is used to promote the displacement of clutch core cover is slidingly matched with power transmission shaft, the displacement camshaft of cam combination is to contacting with bearing, the displacement cam connects the control drag-line, and the cam of deciding of cam combination is fixedlyed connected with support.
2. the clutch transmission of Miniature cultivator used on higher according to claim 1, it is characterized in that: described clutch housing is slidingly matched by bearing and power transmission shaft, be provided with in the outboard counterbore of clutch housing that a radial bearing cooperates with the power transmission shaft axle journal and by the bolt axial location, the inboard counterbore of clutch housing cooperates with the seat ring of thrust bearing.
3. the clutch transmission of Miniature cultivator used on higher according to claim 1 is characterized in that: the axis hole of described clutch core cover is a stepped hole, and the small end of stepped hole cooperates with splined driveshaft, and the big end of stepped hole entangles the compression spring.
4. the clutch transmission of Miniature cultivator used on higher according to claim 1, it is characterized in that: the displacement cam of the described cam combination that is used to promote the displacement of clutch core cover and the cam contour of deciding cam are located at axially, and the cam contour of two cams is slidingly matched.
5. the clutch transmission of Miniature cultivator used on higher according to claim 1, it is characterized in that: described power transmission shaft is slidingly matched by two bearings and supporting disk, one of them is that thrust bearing is adjacent with the clutch core cover, and another is that radial bearing is adjacent with the displacement cam.
6. according to the clutch transmission of the arbitrary described Miniature cultivator used on higher of claim 1～5, it is characterized in that: be provided with an outside framework oil seal between the periphery of described supporting disk and displacement cam.
7. according to the clutch transmission of the arbitrary described Miniature cultivator used on higher of claim 1～5, it is characterized in that: described clutch housing is the driving wheel of tape handler, and power transmission shaft is a driving shaft.
8. according to the clutch transmission of the arbitrary described Miniature cultivator used on higher of claim 1～5, it is characterized in that: described clutch housing is the driven pulley of tape handler, and power transmission shaft is a driven shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201239689U CN201018768Y (en) | 2007-04-05 | 2007-04-05 | Clutch transmission mechanism of mini-tiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201239689U CN201018768Y (en) | 2007-04-05 | 2007-04-05 | Clutch transmission mechanism of mini-tiller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201018768Y true CN201018768Y (en) | 2008-02-13 |
Family
ID=39086167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201239689U Expired - Fee Related CN201018768Y (en) | 2007-04-05 | 2007-04-05 | Clutch transmission mechanism of mini-tiller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201018768Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102687609A (en) * | 2012-05-21 | 2012-09-26 | 浙江亚特电器有限公司 | Grass raker with clutch mechanism |
| CN104763799A (en) * | 2015-03-28 | 2015-07-08 | 盛瑞传动股份有限公司 | Output shaft support device for automatic gearbox |
| CN110005725A (en) * | 2019-05-07 | 2019-07-12 | 佛山市根哈智能数控设备有限公司 | Clutch |
-
2007
- 2007-04-05 CN CNU2007201239689U patent/CN201018768Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102687609A (en) * | 2012-05-21 | 2012-09-26 | 浙江亚特电器有限公司 | Grass raker with clutch mechanism |
| CN104763799A (en) * | 2015-03-28 | 2015-07-08 | 盛瑞传动股份有限公司 | Output shaft support device for automatic gearbox |
| CN104763799B (en) * | 2015-03-28 | 2017-05-10 | 盛瑞传动股份有限公司 | Output shaft support device for automatic gearbox |
| CN110005725A (en) * | 2019-05-07 | 2019-07-12 | 佛山市根哈智能数控设备有限公司 | Clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080213 |