CN203670662U - Crank one-way slewing mechanism - Google Patents
Crank one-way slewing mechanism Download PDFInfo
- Publication number
- CN203670662U CN203670662U CN201320748995.0U CN201320748995U CN203670662U CN 203670662 U CN203670662 U CN 203670662U CN 201320748995 U CN201320748995 U CN 201320748995U CN 203670662 U CN203670662 U CN 203670662U
- Authority
- CN
- China
- Prior art keywords
- crank
- frame
- driven shaft
- sliding bar
- slewing mechanism
- 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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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model discloses a crank one-way slewing mechanism which is used for solving the problem that a machine tool slewing mechanism in the prior art can not carry out one-way movement. The crank one-way slewing mechanism comprises a rack, a driving wheel arranged on the rack, a driven shaft connected with the rack in a sliding mode and a driven wheel fixed to the driven shaft, and further comprises a crank and a gear connected with the driven shaft through a one-way bearing, wherein the crank is provided with a plurality of hinging holes, one end of the crank is hinged to the rim of the driving wheel, the other end of the crank is hinged to a sliding rod capable of moving in the axial direction, the two ends of the sliding rod are connected with the rack in a sliding mode, and a rack is arranged in the middle of the sliding rod and meshed with the gear. The crank one-way slewing mechanism is simple in structure and high in practicality.
Description
Technical field
The utility model relates to machine tooling technical field, is specifically related to a kind of crank unidirectional rotary mechanism.
Background technique
In machine tool rotary working table, commonly use rotation motion mechanism, what rotation motion mechanism was conventional is Geneva mechanism, but in actual use, Geneva mechanism remains in certain deficiency, traverse is unadjustable, corner can not be too little, cannot realize unidirectional movement, and the acceleration of sheave in the time of starting and stopping is large, there is impact, and along with the increase of rotating speed or the minimizing of sheave groove number and aggravate, therefore should not be used for high-speed motion, multiplexly realize the transposition campaign that does not need frequent regulating rotary parallactic angle degree.
Model utility content
The utility model is intended to provide a kind of crank unidirectional rotary mechanism, cannot realize the problem of unidirectional movement to solve machine tool rotary motion in prior art.
Crank unidirectional rotary mechanism in this programme, the driven shaft that comprises frame, is located at driving wheel in frame, is slidably connected with frame and with the fixing follower of driven shaft, also comprise crank and the gear being connected by unilateral bearing with driven shaft, crank is provided with multiple hinging holes, hinged driving wheel wheel rim place, crank one end, crank the other end hinging shaft is to sliding bar movably, and sliding bar two ends and frame are slidably connected, sliding bar middle part is provided with one section of tooth bar, and described tooth bar engages with described gear.
Compared with prior art, the utility model has the advantages that: crank rotates, drive sliding bar to-and-fro motion, in the time that sliding bar forward slides, rack drives gear forward on sliding bar, drive driven shaft forward by individual event bearing, and then drive follower forward, in the time of sliding bar reverse slide, rack drives gear reversion on sliding bar, and individual event bearing can only move towards a direction, thus gear idle running, and follower cannot rotate with gear; So just realize the unidirectional movement of follower; The utility model is simple in structure, processing ease.
Further, frame and the sliding bar place of being slidably connected are provided with abrasive rubber cover, avoid the direct contact wear of sliding bar and frame.
Accompanying drawing explanation
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 crank unidirectional rotary mechanism for implementing example.
Embodiment
Shown in Fig. 1, crank unidirectional rotary mechanism in the utility model embodiment, comprise frame, be located at the driving wheel 1 in frame, the driven shaft 5 being slidably connected with frame and with the fixing follower 4 of driven shaft 5, also comprise crank 2 and the gear being connected by unilateral bearing with driven shaft 5, crank 2 is provided with multiple hinging holes, crank 2 hinged driving wheel wheel rim places, one end, crank 2 the other end hinging shafts are to sliding bar 3 movably, sliding bar 3 two ends and frame are slidably connected, sliding bar 3 middle parts are provided with one section of tooth bar, described tooth bar engages with described gear, frame and sliding bar 3 places of being slidably connected are provided with abrasive rubber cover.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic is not done too much description at this.Should be understood that; for a person skilled in the art, not departing under the prerequisite of the utility model structure, can also make some distortion and improvement; 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. a crank unidirectional rotary mechanism, the driven shaft that comprises frame, is located at driving wheel in frame, is slidably connected with frame and with the fixing follower of driven shaft, it is characterized in that: also comprise crank and the gear being connected by unilateral bearing with driven shaft, crank is provided with multiple hinging holes, hinged driving wheel wheel rim place, crank one end, crank the other end hinging shaft is to sliding bar movably, sliding bar two ends and frame are slidably connected, sliding bar middle part is provided with one section of tooth bar, and described tooth bar engages with described gear.
2. crank unidirectional rotary according to claim 1 mechanism, is characterized in that: frame and the sliding bar place of being slidably connected are provided with abrasive rubber cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320748995.0U CN203670662U (en) | 2013-11-25 | 2013-11-25 | Crank one-way slewing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320748995.0U CN203670662U (en) | 2013-11-25 | 2013-11-25 | Crank one-way slewing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670662U true CN203670662U (en) | 2014-06-25 |
Family
ID=50966962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320748995.0U Expired - Fee Related CN203670662U (en) | 2013-11-25 | 2013-11-25 | Crank one-way slewing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670662U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090418A (en) * | 2015-08-31 | 2015-11-25 | 广西大学 | Gear and rack type intermittent driving mechanism |
| CN109099124A (en) * | 2018-09-27 | 2018-12-28 | 李廷东 | A kind of speed change rotating mechanism, sliding rotating device, volume face machine and dishing distributor |
-
2013
- 2013-11-25 CN CN201320748995.0U patent/CN203670662U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090418A (en) * | 2015-08-31 | 2015-11-25 | 广西大学 | Gear and rack type intermittent driving mechanism |
| CN109099124A (en) * | 2018-09-27 | 2018-12-28 | 李廷东 | A kind of speed change rotating mechanism, sliding rotating device, volume face machine and dishing distributor |
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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: 20140625 Termination date: 20141125 |
|
| EXPY | Termination of patent right or utility model |