CN204729565U - A kind of friction drive - Google Patents
A kind of friction drive Download PDFInfo
- Publication number
- CN204729565U CN204729565U CN201520355997.2U CN201520355997U CN204729565U CN 204729565 U CN204729565 U CN 204729565U CN 201520355997 U CN201520355997 U CN 201520355997U CN 204729565 U CN204729565 U CN 204729565U
- Authority
- CN
- China
- Prior art keywords
- driven shaft
- follower
- driving shaft
- axle sleeve
- friction drive
- 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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- Mechanical Operated Clutches (AREA)
Abstract
The utility model relates to a kind of friction drive, comprise the axle sleeve (1) be sleeved on driving shaft (14), the friction wheel (2) be fixedly connected on axle sleeve (1), with driving shaft (14) vertically arranged driven shaft (13), axle sleeve (1) is held tightly with driving shaft (14) by being sleeved on the tapered sleeve that cracks (3) on driving shaft (14); Driven shaft (13) is set with end cap (6), follower (7) from top to bottom successively, end cap (6) is fixedly connected in the upper end of driven shaft (13) by the second screw (5), and follower (7) drives driven shaft (13) revolution by pivot pin (8).After adopting technique scheme, the utility model effectively can realize the adjustment of velocity ratio and driving force, and has overload protection function.
Description
Technical field
The utility model relates to a kind of transmission device, particularly relates to a kind of friction drive.
Background technique
In the mechanism of some vertical transmission campaigns, have the type of belt drive such as gear transmission, worm and worm gear, but these transmission costs are all comparatively large, the process-cycle is also long, especially can not be used in some occasions needing overload protection, velocity ratio adjustable.For overcoming above shortcoming, a kind of easy vertical transmission movement means need be designed, by the combination of mechanical parts, realize the vertical transmission of motion.
Model utility content
The purpose of this utility model is to provide a kind of transmission device that can complete movement in vertical direction transmission possessing overload protection function, adjustable velocity ratio.
The technological scheme realizing above-mentioned purpose is: a kind of friction drive, comprise the axle sleeve be sleeved on driving shaft, the friction wheel be fixedly connected on axle sleeve, with the vertically arranged driven shaft of driving shaft, axle sleeve is held tightly by crack tapered sleeve and the driving shaft be sleeved on driving shaft; Driven shaft is set with end cap, follower from top to bottom successively, and end cap is fixedly connected in the upper end of driven shaft by the second screw, and follower drives driven shaft revolution by pivot pin.
Further, also positioning device is provided with below described follower, described positioning device comprises spring seat, adjusting nut and is arranged on the butterfly spring group in spring seat, and the upper end of butterfly spring group is supported on the lower surface of follower, and the lower end of butterfly spring group withstands on the internal surface of spring seat.
Further, positioning device also comprises locking nut.
Further, friction wheel can be made with nonmetallic wear-resistant material.
After adopting technique scheme, there is following beneficial effect:
(1) velocity ratio and driving force adjustable;
(2) there is overload protection function;
(3) vertical transmission of motion is realized;
(4) structure is simple, and processing cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1: a kind of friction drive, comprise the axle sleeve 1 be sleeved on driving shaft 14, the friction wheel 2 be fixedly connected on axle sleeve 1, with the vertically arranged driven shaft 13 of driving shaft 14, axle sleeve 1 is held tightly with driving shaft 14 by the tapered sleeve 3 of cracking be sleeved on driving shaft 14; Driven shaft 13 is set with end cap 6, follower 7 from top to bottom successively, and end cap 6 is fixedly connected in the upper end of driven shaft 13 by the second screw 5, and follower 7 drives driven shaft 13 to turn round by pivot pin 8.
Further, for realizing the adjustment of friction driving force, also positioning device is provided with below described follower 7, the butterfly spring group 9 that described positioning device comprises spring seat 10, adjusting nut 11 and is arranged in spring seat 10, the upper end of butterfly spring group 9 is supported on the lower surface of follower 7, and the lower end of butterfly spring group 9 withstands on the internal surface of spring seat 10.
Further, for improving the stability of the utility model transmission, positioning device also comprises locking nut 12.
Further, for improving working life of the present utility model, friction wheel 2 can be made with nonmetallic wear-resistant material.
Working principle of the present utility model is as follows:
When needs regulate velocity ratio, compress the second screw 5, make that follower 7 is micro-to be moved downwards, at this moment unclamp the first screw 4, friction wheel 2 can move left and right along driving shaft 14, to desired location, then tightens the first screw.
When friction driving force need be adjusted, first unclamp locking nut 12, upwards turn adjusting nut 11, spring seat 10 is moved up, to make in seat butterfly spring group 9 by compression, then micro-loose second screw 5, the spring force of butterfly spring group 9 is added on friction wheel 2, more upwards tightens locking nut 12.When the resisting moment of driven shaft 13 is greater than rub-moment, friction wheel 2 and follower 7 can skid in contacting point, play overload protective function.
Claims (4)
1. a friction drive, comprise the axle sleeve (1) be sleeved on driving shaft (14), the friction wheel (2) be fixedly connected on axle sleeve (1), with driving shaft (14) vertically arranged driven shaft (13), it is characterized in that: axle sleeve (1) is held tightly with driving shaft (14) by being sleeved on the tapered sleeve that cracks (3) on driving shaft (14); Driven shaft (13) is set with end cap (6), follower (7) from top to bottom successively, end cap (6) is fixedly connected in the upper end of driven shaft (13) by the second screw (5), and follower (7) drives driven shaft (13) revolution by pivot pin (8).
2. a kind of friction drive according to claim 1, it is characterized in that: described follower (7) below is also provided with positioning device, the butterfly spring group (9) that described positioning device comprises spring seat (10), adjusting nut (11) and is arranged in spring seat (10), the upper end of butterfly spring group (9) is supported on the lower surface of follower (7), and the lower end of butterfly spring group (9) withstands on the internal surface of spring seat (10).
3. a kind of friction drive according to claim 2, is characterized in that: positioning device also comprises locking nut (12).
4. a kind of friction drive according to claim 3, is characterized in that: friction wheel (2) available nonmetallic wear-resistant material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355997.2U CN204729565U (en) | 2015-05-28 | 2015-05-28 | A kind of friction drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355997.2U CN204729565U (en) | 2015-05-28 | 2015-05-28 | A kind of friction drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204729565U true CN204729565U (en) | 2015-10-28 |
Family
ID=54387920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520355997.2U Expired - Fee Related CN204729565U (en) | 2015-05-28 | 2015-05-28 | A kind of friction drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204729565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108970921A (en) * | 2018-04-26 | 2018-12-11 | 安徽派日特智能装备有限公司 | A kind of rotating-table apparatus having machining position rotation |
-
2015
- 2015-05-28 CN CN201520355997.2U patent/CN204729565U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108970921A (en) * | 2018-04-26 | 2018-12-11 | 安徽派日特智能装备有限公司 | A kind of rotating-table apparatus having machining position rotation |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20200528 |