CN201359062Y - Friction type speed regulating mechanism - Google Patents
Friction type speed regulating mechanism Download PDFInfo
- Publication number
- CN201359062Y CN201359062Y CNU2009200085220U CN200920008522U CN201359062Y CN 201359062 Y CN201359062 Y CN 201359062Y CN U2009200085220 U CNU2009200085220 U CN U2009200085220U CN 200920008522 U CN200920008522 U CN 200920008522U CN 201359062 Y CN201359062 Y CN 201359062Y
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- China
- Prior art keywords
- speed
- hand wheel
- regulating mechanism
- speed reducer
- friction
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- Expired - Fee Related
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 18
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000003116 impacting effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
A friction type speed regulating mechanism with simple structure and reliable work is applied to speed regulation of a rotary arm planetary friction type stepless speed reducer. It features that the speed regulating hand wheel and screw rod are provided with friction unit and the hand wheel is pressed tightly with elastic unit. The speed regulation torque is smaller than the torque which can be transmitted by the friction force between the hand wheel and the lead screw under the running condition of the speed reducer, the speed regulation of the speed reducer can be realized through the hand wheel, when the speed reducer is in a stop state or the speed regulation is in a limit position, the lead screw is limited to rotate, the hand wheel and the lead screw slip, the speed regulation hand wheel, the lead screw and the planetary speed reduction mechanism can be protected from being damaged, and the effect of protecting the speed reducer is better played.
Description
Technical field:
The utility model belongs to the stepless speed reducer speed regulating mechanism of arm planetary friction type.
Background technique:
The stepless speed reducer of arm planetary friction type is widely used in every field at present, its speed control principle is by changing the gap of planet wheel external friction ring, make input shaft drive the planet wheel time rotational and adjust its working position automatically, make its speed of autorotation and revolution speed generation respective change, thereby realize the purpose of speed governing.The gap of planet wheel external friction ring is to change by the pulling of the speed governing slide block on speed governing screw mandrel speed governing cam, and speed-regulating hand wheel is housed on the screw mandrel.The speed-regulating hand wheel that uses is all fixedlyed connected with screw mandrel at present; the type speed regulating mechanism can carry out normal speed governing under the speed reducer operating condition; but under outage state, there is not rotation owing to planet wheel; its working position can't be adjusted automatically; when exerting oneself greatly, will damage speed regulating mechanism; even planet wheel external friction ring can consequently be smashed the planet wheel locking planet wheel or twist off input shaft etc. when equipment moment startup.
Because operator are ignorant of the stepless speed reducer working principle of planetary friction formula or do not notice the operation requirement of equipment, occur shutting down the phenomenon of speed governing often in actual use, shine, bring bigger economic loss to the user into the substantial equipment fault.
The model utility content:
The utility model purpose provides a kind of simple and practical, the speed regulating mechanism that can effectively protect speed reducer not to be damaged.
The purpose of this utility model is achieved through the following technical solutions:
Be provided with rubbing device between speed governing screw mandrel and handwheel, rubbing surface is pressed together under the elastic device effect, and handwheel drives screw mandrel by friction and rotates.
The working principle of the utility model device: the contact friction face of speed-regulating hand wheel and leading screw is pressed together by elastic device, and when rotating speed-regulating hand wheel, frictional force drives the speed governing leading screw and rotates, and screw mandrel drives the speed governing that the speed governing slide block movement is realized speed reducer.During adjusting moment when the speed governing slide block movement is restricted or surpass the normal speed governing of speed reducer, handwheel and leading screw produce and skid.The impacting force of regulating elastic device can change frictional force between handwheel and screw mandrel.
The utility model is simple in structure; reliable operation; under the suitable situation of impacting force adjustment; not only can realize the normal speed-regulating function of speed reducer; and speed governing under outage state, can protect speed regulating mechanism not to be damaged, simultaneously the adjusting moment that produces by frictional force; when starting, can not cause by speed reducer planetary gear speed reducing mechanism to damage, so can better play the effect of protection speed reducer yet.
Description of drawings:
Fig. 1 is the structural representation of the utility model device;
Fig. 2 is the utility model Unit Installation key plan;
Among the figure: 1 speed governing screw mandrel, 2 speed-regulating hand wheels, 3 elastic devices, 4 nuts, 5 rubbing surfaces, 6 speed governing leading screw friction disks, 7 speed governing slide blocks, 8 governor housings, 9 governor assemblies, the stepless speed reducer of 10 arm planetary friction types,
Embodiment:
Embodiment 1: as shown in Figure 1, speed-regulating hand wheel 2 is installed on the screw mandrel 1, handwheel and screw mandrel friction disk 6 surface of contact compress speed-regulating hand wheel with suitable power with elastic device 3 with screw mandrel upper cap nut 4 then directly as rubbing surface 5.
Embodiment 2: can adopt friction plate between the rubbing surface 5 described in the embodiment 1, by changing the requirement that friction factor can satisfy equipment different adjustment moment.
Embodiment 3: elastic pressuring clamping device can adopt butterfly spring, helical spring or plastics spring described in the embodiment 1.Can cancel holddown spring when adopting plastics spring, as friction plate, self elasticity is as spring with plastics spring.
Elastic pressuring clamping device not only is confined to upper spring.
In the above-described embodiments, the working principle of frictional speed adjusting mechanism is identical, all is that the frictional force of utilizing rubbing surface to produce is under pressure transmitted speed governing moment.During speed governing, speed governing moment is less than the transferable moment of frictional force under operating condition for speed reducer, and handle can not skid, and can realize normal speed-regulating function; When handle with sleeve under outage state, if during the moment that the moment that acts on handle is transmitted greater than the frictional force between rubbing surface, handle produces and skids, thereby plays the effect that protection speed regulating mechanism and gear are without prejudice.
The utility model device not only is confined to above embodiment's structural type based on its limit principle of moment.
Claims (5)
1. the stepless speed reducer speed regulating mechanism of planet is made up of speed-regulating hand wheel, screw mandrel and rubbing device, it is characterized in that handwheel passes through friction and drives the leading screw rotation.
2. speed regulating mechanism according to claim 1 is characterized in that utilizing between screw mandrel and the speed-regulating hand wheel surface of contact as rubbing surface or employing friction plate transferring power.
3. speed regulating mechanism according to claim 1 and 2 is characterized in that elastic pressuring clamping device adopts the dish spring.
4. speed regulating mechanism according to claim 1 and 2 is characterized in that elastic pressuring clamping device adopts helical spring.
5. speed regulating mechanism according to claim 1 and 2 is characterized in that rubbing device adopts plastics spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200085220U CN201359062Y (en) | 2009-03-11 | 2009-03-11 | Friction type speed regulating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200085220U CN201359062Y (en) | 2009-03-11 | 2009-03-11 | Friction type speed regulating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201359062Y true CN201359062Y (en) | 2009-12-09 |
Family
ID=41424826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200085220U Expired - Fee Related CN201359062Y (en) | 2009-03-11 | 2009-03-11 | Friction type speed regulating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201359062Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832376A (en) * | 2009-03-11 | 2010-09-15 | 孟凡英 | Frictional speed adjusting mechanism |
| CN106321759A (en) * | 2015-07-10 | 2017-01-11 | 南京德朔实业有限公司 | Transmission device and power tool with transmission device |
-
2009
- 2009-03-11 CN CNU2009200085220U patent/CN201359062Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832376A (en) * | 2009-03-11 | 2010-09-15 | 孟凡英 | Frictional speed adjusting mechanism |
| CN106321759A (en) * | 2015-07-10 | 2017-01-11 | 南京德朔实业有限公司 | Transmission device and power tool with transmission device |
| CN106321759B (en) * | 2015-07-10 | 2018-10-02 | 南京德朔实业有限公司 | Transmission device and power tool with the transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yanzhou quantum science and Technology Co Ltd Assignor: Meng Fanying Contract fulfillment period: 2009.12.25 to 2016.1.1 Contract record no.: 2010370000044 Denomination of utility model: Frictional speed adjusting mechanism Granted publication date: 20091209 License type: Exclusive license Record date: 20100128 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.12.25 TO 2016.1.1; CHANGE OF CONTRACT Name of requester: YANZHOU CITY QUANTUM TECHNOLOGY CO.,LTD. Effective date: 20100128 |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 273500 Shandong city of Zoucheng Province East Ring Road No. 3399 Shandong Huazhi Technology Co Ltd Patentee after: Meng Fanying Address before: The revitalization of the road Xin Yan Zhen Private Economy Park 272100 Shandong city of Yanzhou Province Patentee before: Meng Fanying |
|
| DD01 | Delivery of document by public notice |
Addressee: Meng Fanying Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Meng Fanying Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20170311 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |