CN208271818U - A kind of motor worm anti-lock transmission device and a kind of breaker - Google Patents
A kind of motor worm anti-lock transmission device and a kind of breaker Download PDFInfo
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- CN208271818U CN208271818U CN201820899712.5U CN201820899712U CN208271818U CN 208271818 U CN208271818 U CN 208271818U CN 201820899712 U CN201820899712 U CN 201820899712U CN 208271818 U CN208271818 U CN 208271818U
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- motor
- axle sleeve
- block
- motor shaft
- worm
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Abstract
The utility model discloses a kind of motor worm anti-lock transmission devices, including motor, axle sleeve and worm screw, the motor shaft and axle sleeve clearance fit or transition fit of motor, the position limiting structure that limiting motor axis and axle sleeve relatively rotate is equipped between motor shaft and axle sleeve, axle sleeve periphery is provided with the first block, worm screw inner circumferential is provided with the second block for being circumferentially clamped the first block, and there are the rotation spaces circumferentially distributed along axle sleeve between the first block and the second block.This programme can will not generate damage easily by axle sleeve assembly on motor shaft in assembling sleeve to structures such as brush and bearings, meanwhile, it can guarantee that the two rotates synchronously using position limiting structure with the relative rotation between limiting motor axis and axle sleeve.There is inertia force when the design of block and rotation space can guarantee electric motor starting between worm screw and axle sleeve, avoid that locking occurs, improve the stability of product operation.The invention also discloses a kind of breakers including above-mentioned motor worm anti-lock transmission device.
Description
Technical field
The utility model relates to technical field of transmission more particularly to a kind of motor worm anti-lock transmission devices and one
Kind breaker.
Background technique
Motor worm bridge-set is used in the operating mechanism of circuit breaker operation mechanism or other electric components
Transmission parts.Motor worm bridge-set includes motor, axle sleeve and worm screw, and motor and worm screw generally use the installation knot of close-fitting
Structure.When with the process Installation of close-fitting, motor and worm screw turbine locking occur for discovery motor occasional in the starting course of work
Phenomenon.Currently used solution is first to be pressed into axle sleeve and be tightly placed on motor shaft, then will be used between axle sleeve and worm screw
The connection type that pine is matched, in this way, motor is made to have inertia on startup, motor and worm screw turbine would not lockings.This knot
Structure locking when although the motor of solving the problems, such as over and worm screw start, still, during practical set, since axle sleeve is to want
First in interference fit on motor shaft, when being firmly pressed into axle sleeve on motor shaft, motor is easily lead to after motor shaft stress
Brush and bearing displacement seriously destroy the structure and performance of motor, or even damage motor.
Utility model content
In view of this, both ensure that electricity the purpose of the utility model is to provide a kind of motor worm anti-lock transmission device
Locking will not occur in electric motor starting for machine and worm screw, in turn ensure will not be damaged during assembling sleeve motor brush and
Bearing.Another purpose of the utility model is to provide a kind of breaker including above-mentioned motor worm anti-lock transmission device.
In order to achieve the above object, the utility model provides following technical solution:
A kind of motor worm anti-lock transmission device, including motor, axle sleeve and worm screw, the motor shaft of the motor with it is described
Axle sleeve clearance fit or transition fit are equipped between the motor shaft and the axle sleeve and limit the motor shaft and the axle sleeve phase
To the position limiting structure of rotation, the axle sleeve periphery is provided with the first block, and the worm screw inner circumferential is provided with for being circumferentially clamped
Second block of first block, there are circumferentially distributed along the axle sleeve between first block and second block
Rotation space.
Preferably, the locating shaft being provided on the motor shaft between the motor casing and the axle sleeve of the motor
Shoulder.
Preferably, the section of the motor shaft is convexity or ellipse or semicircle or polygon.
Preferably, the outer peripheral surface of the motor shaft includes along itself axially extending plane and cylindrical surface.
Preferably, the circle in above-mentioned motor worm anti-lock transmission device, in the cross section outer profile of the motor shaft
The maximum distance of arc side and straight flange is greater than the radius of the arc-shaped edges.
Motor worm anti-lock transmission device provided by the utility model, including motor, axle sleeve and worm screw, the motor
Motor shaft and the axle sleeve clearance fit or transition fit are equipped between the motor shaft and the axle sleeve and limit the motor shaft
The position limiting structure relatively rotated with the axle sleeve, the axle sleeve periphery are provided with the first block, and the worm screw inner circumferential setting is useful
There are along the axis between the second block for being circumferentially clamped first block, first block and second block
Cover circumferentially distributed rotation space.
When assembly, first axle sleeve is assembled on motor shaft, then worm screw is set in outside the axle sleeve of motor shaft, forms motor
Worm gearing.It is gap-matched between motor shaft and axle sleeve in this programme or the assembling structure of transition fit, is come with this
Interference fit in the prior art is substituted, can be easily by axle sleeve assembly on motor shaft in assembling sleeve, it will not be to electricity
The structures such as brush and bearing generate damage, meanwhile, it can be protected using position limiting structure with the relative rotation between limiting motor axis and axle sleeve
Both cards rotate synchronously.The design of block and rotation space between worm screw and axle sleeve can guarantee there is inertia when electric motor starting
Power avoids that locking occurs, improves the stability of product operation.
The utility model additionally provides a kind of breaker including above-mentioned motor worm anti-lock transmission device.The breaker
The derivation process of the derivation process of the beneficial effect of generation and above-mentioned motor worm anti-lock transmission device bring beneficial effect
Substantially similar, therefore, this article will not repeat them here.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the cross-sectional view of the motor worm anti-lock transmission device in the utility model specific embodiment；
Fig. 2 is the cross-sectional view of the motor shaft in the utility model specific embodiment；
Fig. 3 is the cross-sectional view of the axle sleeve in the utility model specific embodiment；
Fig. 4 is the assembling schematic diagram of the motor worm anti-lock transmission device in the utility model specific embodiment.
In Fig. 1 to Fig. 4:
1- motor shaft, 2- axle sleeve, the first block of 3-, 4- worm screw, the second block of 5-, 6- motor, 11- straight flange, 12- circular arc
Side, 13- positioning shaft shoulder, 21- axle sleeve hole.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1 to Fig. 4 is please referred to, Fig. 1 is the motor worm anti-lock transmission device in the utility model specific embodiment
Cross-sectional view, Fig. 2 are the cross-sectional view of the motor shaft in the utility model specific embodiment, and Fig. 3 is that this is practical new
The cross-sectional view of axle sleeve in type specific embodiment, Fig. 4 are that the motor worm in the utility model specific embodiment is antilock
The assembling schematic diagram of dead transmission device.
A kind of motor worm anti-lock transmission device, including motor 6, axle sleeve 2 and worm screw 4, the motor shaft 1 and axis of motor 6
2 clearance fits or transition fit are covered, the limit that limiting motor axis 1 and axle sleeve 2 relatively rotate is equipped between motor shaft 1 and axle sleeve 2
Structure, 2 periphery of axle sleeve are provided with the first block 3, and 4 inner circumferential of worm screw is provided with the second gear for being circumferentially clamped the first block 3
Block 5, there are the rotation spaces circumferentially distributed along axle sleeve 2 between the first block 3 and the second block 5.
When assembly, first axle sleeve 2 is assembled on motor shaft 1, then worm screw 4 is set in outside the axle sleeve 2 of motor shaft 1, shape
At motor worm transmission device.It is gap-matched between motor shaft 1 and axle sleeve 2 in this programme or the assembly knot of transition fit
Structure substitutes interference fit in the prior art with this, can easily assemble axle sleeve 2 in motor shaft 1 in assembling sleeve 2
On, will not the structures such as brush and bearing be generated with damage, meanwhile, it can be between limiting motor axis 1 and axle sleeve 2 using position limiting structure
Relative rotation, guarantee both rotate synchronously.The design of block and rotation space between worm screw 4 and axle sleeve 2 can guarantee electricity
There is inertia force when machine starts, avoid that locking occurs, improve the stability of product operation.
Preferably, the positioning shaft shoulder 13 being provided on motor shaft 1 between the motor casing and axle sleeve 2 of motor 6, such as Fig. 4
It is shown.The positioning shaft shoulder 13 is integrally formed when processing motor shaft 1, and positioning shaft shoulder 13 can make the motor casing of axle sleeve 2 Yu motor 6
There are certain distance between outside, after assembling sleeve 2, axle sleeve 2 is positioned by the end face of the positioning shaft shoulder 13, guarantees axle sleeve 2 not
Motor housing can be encountered and cause locking.
It should be noted that the position limiting structure between motor shaft 1 and axle sleeve 2 can be designed as diversified forms, such as in electricity
The other structures such as periphery setting stop block structure, planar structure or the ellipsoid structure of arbor 1.In a kind of preferred embodiment scheme
In, motor shaft 1 is designed as off-axis structure, that is, the cross section of motor shaft 1 is designed as the other shapes other than circle, such as convex
Other polygons such as round or ellipse or semicircle or square or hexagon, cross section are the motor shaft of these shapes
1, with after 2 transition fit of axle sleeve or clearance fit, can play the function that limiting motor axis 1 and axle sleeve 2 relatively rotate.
In another preferred embodiment scheme, the outer peripheral surface of motor shaft 1 includes along itself axially extending plane and circle
Cylinder its axial direction can mill out a plane in the motor shaft outer periphery of cylinder, that is, can be processed into when processing motor shaft 1
Off-axis structure, meanwhile, the axle sleeve hole 21 of axle sleeve 2 is designed to the shape matched with motor shaft 1, as shown in figure 3, and using
Cooperation or clearance fit assembly are crossed, hidden danger caused by forced assembly is avoided, promotes the stability of product.
Preferably, the arc-shaped edges in above-mentioned motor worm anti-lock transmission device, in the cross section outer profile of motor shaft 1
12 are greater than the radius of arc-shaped edges 12 with the maximum distance of straight flange 11, as shown in Fig. 2, the cross section profile is equivalent to and cuts away in circle
One section of minor arc simultaneously connects major arc both ends with string, forms a closed figure.So set, it is more that motor shaft 1 can be made to retain
Material guarantees there is enough intensity, is provided simultaneously with the function that limiting motor axis 1 and axle sleeve 2 relatively rotate.
In the use process of breaker or other electric components, motor 6 relies on motor shaft 1 and axle sleeve during the work time
2 transmitting power when motor shaft 1 rotates, since there are rotation spaces with worm screw 4 for axle sleeve 2, avoid motor shaft 1 and worm screw 4 directly
Locking is led to the problem of when transmission.
The utility model additionally provides a kind of breaker including above-mentioned motor worm anti-lock transmission device.The breaker
The derivation process of the derivation process of the beneficial effect of generation and above-mentioned motor worm anti-lock transmission device bring beneficial effect
Substantially similar, therefore, this article will not repeat them here.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (6)
1. a kind of motor worm anti-lock transmission device, including motor (6), axle sleeve (2) and worm screw (4), which is characterized in that described
The motor shaft (1) of motor (6) and the axle sleeve (2) clearance fit or transition fit, the motor shaft (1) and the axle sleeve (2)
Between be equipped with and limit the position limiting structure that the motor shaft (1) and the axle sleeve (2) relatively rotate, axle sleeve (2) periphery is arranged
Have the first block (3), worm screw (4) inner circumferential is provided with the second block for being circumferentially clamped first block (3)
(5), there are the rotation spaces circumferentially distributed along the axle sleeve (2) between first block (3) and second block (5).
2. motor worm anti-lock transmission device according to claim 1, which is characterized in that set on the motor shaft (1)
The positioning shaft shoulder (13) being equipped between the motor casing and the axle sleeve (2) of the motor (6).
3. motor worm anti-lock transmission device according to claim 1, which is characterized in that the motor shaft (1) is cut
Face is convexity or ellipse or semicircle or polygon.
4. motor worm anti-lock transmission device according to claim 1, which is characterized in that outside the motor shaft (1)
Circumferential surface includes along itself axially extending plane and cylindrical surface.
5. motor worm anti-lock transmission device according to claim 4, which is characterized in that the cross of the motor shaft (1)
The maximum distance of arc-shaped edges (12) and straight flange (11) in the outer profile of section is greater than the radius of the arc-shaped edges (12).
6. a kind of breaker, which is characterized in that passed including the motor worm anti-lock as described in any one of claims 1 to 5
Dynamic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820899712.5U CN208271818U (en) | 2018-06-11 | 2018-06-11 | A kind of motor worm anti-lock transmission device and a kind of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820899712.5U CN208271818U (en) | 2018-06-11 | 2018-06-11 | A kind of motor worm anti-lock transmission device and a kind of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208271818U true CN208271818U (en) | 2018-12-21 |
Family
ID=64688358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820899712.5U Active CN208271818U (en) | 2018-06-11 | 2018-06-11 | A kind of motor worm anti-lock transmission device and a kind of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208271818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110556266A (en) * | 2019-08-26 | 2019-12-10 | 浙江巨高电力设备有限公司 | Vacuum circuit breaker on post |
-
2018
- 2018-06-11 CN CN201820899712.5U patent/CN208271818U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110556266A (en) * | 2019-08-26 | 2019-12-10 | 浙江巨高电力设备有限公司 | Vacuum circuit breaker on post |
| CN110556266B (en) * | 2019-08-26 | 2021-06-25 | 浙江巨高电力设备有限公司 | Vacuum circuit breaker on post |
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