CN208764162U - A kind of shaft coupling for precision drive - Google Patents
A kind of shaft coupling for precision drive Download PDFInfo
- Publication number
- CN208764162U CN208764162U CN201821085103.2U CN201821085103U CN208764162U CN 208764162 U CN208764162 U CN 208764162U CN 201821085103 U CN201821085103 U CN 201821085103U CN 208764162 U CN208764162 U CN 208764162U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- axle sleeve
- input axle
- output
- square block
- 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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- Clamps And Clips (AREA)
Abstract
The utility model relates to a kind of shaft couplings for precision drive, comprising: input axle sleeve, thrust steel balls retainer, lateral steel ball retainer, square block, output sleeve；Wherein, it is machined with clamping groove respectively on input axle sleeve and output sleeve, input axle sleeve and output sleeve make-up are connected together, and input axle sleeve is fixed on input shaft, and output sleeve is fixed on output shaft；Square block is arranged between input axle sleeve and output sleeve, and square block and input axle sleeve and output sleeve contact jaw are provided with thrust steel balls retainer；Lateral steel ball retainer is respectively equipped on four side walls of square block, wherein two groups of lateral steel ball retainers are installed in the form of interference with the side of the medial surface of input axle sleeve and square block respectively, other two groups then contact with the side of the medial surface of output sleeve and square block respectively, same interference installation.The shaft coupling can be realized the high rigidity of high-accuracy rotary motion, be driven without backlash, and two axis coaxiality errors will not cause damages to output shaft precision.
Description
Technical field
The utility model belongs to mechanical transmission fields, and in particular to a kind of achievable high rigidity precision rotating motion transmission
Coupler structure.
Background technique
In some precision drive mechanical structures, need the rotary motion of motor being transmitted to output shaft by shaft coupling.
In order to guarantee high transmission accuracy, need shaft coupling that there is enough torsion stiffness to guarantee accurate output, while needing shaft coupling
Other several freedom degrees in no restrained condition, to avoid will because motor and output shaft it is not coaxial caused by loss of significance.At present
Common coupler structure includes diaphratic elastic coupling, quincunx yielding coupling and sleeve-like rigid shaft coupling etc.；Wherein,
Diaphragm type coupler and quincunx shaft coupling are yielding coupling, defeated due to the elasticity of shaft coupling in motor stalls
Shaft cannot keep locking state, and under the action of by external force, Angle Position is easy to produce variation, be unfavorable for precision positioning；Sleeve
Formula positive coupling can solve the above problem, but positive coupling restraint of liberty spend it is more, in assembling process motor shaft and
Driving error caused by angle and position deviation between output shaft can not overcome.
Summary of the invention
The purpose of this utility model is to provide a kind of shaft coupling for precision drive, solve main in precision mechanical transmission
The technical issues of high-precision between moving axis and output shaft is driven.
To achieve the above object, the utility model adopts the following technical scheme that realization:
A kind of shaft coupling for precision drive, comprising: input axle sleeve, thrust steel balls retainer, lateral steel ball retainer,
Square block, Anti-loose bolt, output sleeve；Wherein, it is machined with clamping groove respectively on the input axle sleeve and output sleeve, inputs
Axle sleeve and output sleeve make-up are connected together, and the input axle sleeve is fixed on input shaft, and output sleeve is fixed on output shaft
On；The square block is arranged between input axle sleeve and output sleeve, and square block and input axle sleeve and output sleeve contact jaw are equal
It is provided with thrust steel balls retainer, carries out axial limiting for square shaped block；It is set respectively on four side walls of the square block
Have lateral steel ball retainer, wherein two groups of lateral steel ball retainers respectively with the side of the medial surface of input axle sleeve and square block with
The installation of interference form, in addition then contacts with the side of the medial surface of output sleeve and square block for two groups respectively, same interference installation；
The Anti-loose bolt passes through square block and is connected as one input axle sleeve and output sleeve.
As the preferred of the utility model, the Anti-loose bolt installation Shi Buying is tightened, in order to avoid to shaft coupling freedom degree
It generates constraint and influences precision.
The advantages of the utility model and good effect: coupler structure provided by the utility model is simple, inexpensive,
There is enough torsion stiffness in transmission process, antiport can well adapt to two axis without backlash gap
Between the angle of axis intersect and offset, the coaxiality error of two axis is not transferred to output shaft, avoids making output shaft precision
At loss, guarantee the high-precision rotary movement of output shaft.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model shaft coupling.
Fig. 2 is the cross-sectional view of the utility model shaft coupling.
Fig. 3 is the structural schematic diagram of the utility model input axle sleeve.
Specific embodiment
To make those skilled in the art more understand the technical solution of the utility model and advantage, below in conjunction with attached drawing pair
The technical solution of the utility model is clearly and completely described, it is clear that described embodiment is only the utility model one
Section Example, instead of all the embodiments.
Refering to fig. 1 to Fig. 3, a kind of shaft coupling for precision drive provided by the utility model, comprising: input axle sleeve 1,
Thrust steel balls retainer 2, lateral steel ball retainer 3, square block 4, Anti-loose bolt 5, output sleeve 6；Wherein, the input shaft
It is machined with clamping groove 7 respectively on set 1 and output sleeve 6, input axle sleeve 1 and 6 make-up of output sleeve are connected together, the input
Axle sleeve 1 is fixed on input shaft by two jackscrews, and output sleeve 6 is equally fixed on output shaft by two jackscrews；It is described
Square block 4 is arranged between input axle sleeve 1 and output sleeve 6, and square block 4 is all provided with input axle sleeve 1 and 6 contact jaw of output sleeve
It is equipped with thrust steel balls retainer 2, carries out axial limiting for square shaped block 4；It is set respectively on four side walls of the square block 4
There is lateral steel ball retainer 3, wherein two groups of lateral steel ball retainers 3 side with the medial surface of input axle sleeve 1 and square block 4 respectively
Face is installed in the form of interference, is in addition then contacted respectively with the side of the medial surface of output sleeve 6 and square block 4 for two groups, same mistake
It is full of installation；The Anti-loose bolt 5 passes through square block 4 and is connected as one input axle sleeve 1 and 6 axle sleeves of output, to prevent from installing
Thrust steel balls retainer falls off in the process, but Anti-loose bolt should not be tightened, so as not to shaft coupling freedom degree generate constraint and
Influence precision.
Claims (2)
1. a kind of shaft coupling for precision drive characterized by comprising input axle sleeve, thrust steel balls retainer, lateral steel
Ball Retainer, square block, Anti-loose bolt, output sleeve；Wherein, it is machined with card respectively on the input axle sleeve and output sleeve
Access slot, input axle sleeve and output sleeve make-up are connected together, and the input axle sleeve is fixed on input shaft, and output sleeve is fixed
On output shaft；The square block is arranged between input axle sleeve and output sleeve, square block and input axle sleeve and output sleeve
Contact jaw is provided with thrust steel balls retainer, carries out axial limiting for square shaped block；In four side walls of the square block
On be respectively equipped with lateral steel ball retainer, wherein two groups of lateral steel ball retainers respectively with the medial surface of input axle sleeve and square block
Side installed in the form of interference, in addition then contacted respectively with the side of the medial surface of output sleeve and square block for two groups, equally
Interference installation；The Anti-loose bolt passes through square block and is connected as one input axle sleeve and output sleeve.
2. a kind of shaft coupling for precision drive according to claim 1, which is characterized in that the Anti-loose bolt peace
Dress Shi Buying is tightened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821085103.2U CN208764162U (en) | 2018-07-10 | 2018-07-10 | A kind of shaft coupling for precision drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821085103.2U CN208764162U (en) | 2018-07-10 | 2018-07-10 | A kind of shaft coupling for precision drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208764162U true CN208764162U (en) | 2019-04-19 |
Family
ID=66128253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821085103.2U Expired - Fee Related CN208764162U (en) | 2018-07-10 | 2018-07-10 | A kind of shaft coupling for precision drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208764162U (en) |
-
2018
- 2018-07-10 CN CN201821085103.2U patent/CN208764162U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190419 Termination date: 20200710 |