CN203308959U

CN203308959U - Coupler

Info

Publication number: CN203308959U
Application number: CN2013201174641U
Authority: CN
Inventors: 李建安
Original assignee: Conspicuous Automation Science And Technology Ltd Of Kunshan Riamb
Current assignee: Conspicuous Automation Science And Technology Ltd Of Kunshan Riamb
Priority date: 2013-03-15
Filing date: 2013-03-15
Publication date: 2013-11-27
Anticipated expiration: 2023-03-15

Abstract

The utility model discloses a coupler which comprises a coupling part and at least one boss. The coupling part is a cylinder which is provided with a central through hole and an opening, the central through hole passes through the central axis, and the opening is formed in the parallel axis direction in a cylinder wall formed by the cylinder and the through hole. The boss is arranged on the surface of the cylinder and protrudes in the direction parallel to the central axis in a rectangular shape. On one hand, the boss can be inserted into the corresponding opening during mounting, so that relative sliding is avoided, on the other hand, due to the fact that the shape of the boss is designed, the boss can be broken after exceeding preset torque, a motor is prevented from being damaged, and therefore the coupler has obvious advantages.

Description

A kind of coupling

Technical field

The utility model belongs to dynamo-electric field, relates to a kind of coupling.

Background technique

In current coupling industry, the coupling used such as stepper motor, direct current generator, actuating motor are generally to adopt structure as shown in Figure 1, the material used simultaneously is substantially also to belong to the softer material of material, after an end of working shaft is used screw-threaded coupling, connect with connector, and connect with motor shaft at the other end of coupling.When the motor High Rotation Speed, the problem of coupling and working shaft relative sliding often occurs, although can avoid the excessive damage that causes motor of moment of torsion, but can allow coupling because friction produces amount of heat, thereby cause the rising of coupling self temperature, cause on the one hand the error of motor transmission aspect, also greatly affected the working life of coupling simultaneously.When therefore needing in the industry to solve the relative sliding problem occurred in motor High Rotation Speed process, also can occur when moment of torsion exceeds predefined value, produce self-protection, avoid the damage of motor.

The model utility content

In view of this, need to overcome at least one in above-mentioned defect of the prior art.The utility model provides a kind of coupling.

Described coupling comprises the shaft coupling parts, described shaft coupling parts are the cylindrical body had by the central through bore of central axis, and has the opening formed along on the direction that parallels to the axis on the cylinder wall of described cylindrical body and described through hole formation, described central through bore is used for passing two axle heads of required connection, the pressure produced in the mismatch error produced when described opening is used for absorbing described coupling and coordinates with axle head and installation process;

And

At least one boss, described boss are arranged on described periphery and edge is parallel to the rectangular projection on described central axial direction.

According to described to prior art in this patent background technique, as shown in Figure 1, because coupling commonly used is all generally that cylinder forms, when the motor High Rotation Speed, the fricative amount of heat that coupling and working shaft relative sliding can occur and cause thus, thereby cause the rising of coupling self temperature, cause on the one hand the error of motor transmission aspect, also greatly affected the working life of coupling simultaneously.And the disclosed coupling of the utility model, existence due to described boss, in installation process, insert in corresponding opening on the one hand, avoided the appearance of relative sliding, shape process due to boss designs on the other hand, but make its fracture after exceeding preset torque, thereby the situation of avoiding damaging motor occurs therefore having obvious advantage.

In addition, according to the disclosed coupling of the utility model, also have a following additional technical feature:

Described central through bore cross-section area is the closed curve structure of camber line formation or the sealing composite structure of curve and straight line;

Preferably, described curve is circular arc.

Further, the central through bore cross-section area can be comprised of circular arc and oblique line section;

Alternatively, the central through bore cross-section area can be comprised of circular arc and wedge angle line segment;

Alternatively, the central through bore cross-section area can be comprised of the part of circular arc and rectangle;

Described central through bore can match with motor shaft, and an end of coupling connects motor shaft, and the other end connects working shaft.

Further, the diameter of described circular arc is for being more than or equal to 10mm and being less than or equal to 52mm.

According to motor diameter of axle standard, standard is corresponding one by one therewith in above-mentioned scope for described arc diameter.

Further, described land length is more than or equal to 2mm and is less than or equal to 20mm.

Determining of the concrete length of described boss can be determined by calculating according to preset torque.

Further, described shaft coupling part length is less than or equal to 50mm.

After described shaft coupling part length is greater than 50mm, can coordinates and have certain size deviation with market institute sale of electricity machine.

Alternatively, described boss has two.

Preferably, described boss is symmetrically distributed in described periphery according to the position of described opening on described cylindrical body.

Alternatively, described boss has one.

Preferably, described coupling is metal structure.

Alternatively, described metal structure is P20 or S136 or SKD10 or A3 steel structure.

Adopt the higher metallic material of hardness can have hardness and fracture property better, rupture and can occur fast when moment of torsion exceeds preset torque.

The aspect that the utility model is additional and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.

The accompanying drawing explanation

Above-mentioned and/or additional aspect of the present utility model and advantage will become from the following description of the accompanying drawings of embodiments and obviously and easily understand, wherein:

Fig. 1 is the coupling that tradition is used;

Fig. 2 is according to a kind of embodiment's front view of the present utility model;

Fig. 3-5th, the different embodiments' of Fig. 2 cross sectional representation;

Fig. 6 is a kind of embodiment's front view;

In Fig. 2, the 1st, the shaft coupling parts, the 2nd, boss, the 12nd, opening, X are to parallel to the axis;

In Fig. 3, the 13rd, cylinder wall, the 11st, central through bore.

Embodiment

Below describe embodiment of the present utility model in detail, described embodiment's example is shown in the drawings, and wherein same or similar label means same or similar element or the element with identical or similar functions from start to finish.Below by the embodiment who is described with reference to the drawings, be exemplary, only be used to explaining the utility model, and can not be interpreted as restriction of the present utility model.

In description of the present utility model, it will be appreciated that, term " on ", orientation or the position relationship of the indications such as D score, " end ", " top ", 'fornt', 'back', " interior ", " outward ", " horizontal stroke ", " erecting " be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as restriction of the present utility model.

In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " connection ", " connection ", " being connected ", " connection ", " cooperation " should be done broad understanding, for example, can be to be fixedly connected with, connecting integratedly, can be also to removably connect; It can be the connection of two element internals; Can be directly to be connected, also can indirectly be connected by intermediary; " cooperation " can be face and the coordinating of face, and can be also point and the coordinating of face or line and face, and also comprises the cooperation of hole axle, for the ordinary skill in the art, and can the concrete meaning of the concrete condition above-mentioned term of understanding in the utility model.

Model utility of the present utility model design is as follows, thereby has been caused the error of motor transmission aspect and affected working life of coupling by the described phenomenon of description; Therefore the disclosed coupling of the utility model has not only structurally increased the boss of avoiding relative sliding, the material used has simultaneously also adopted the material that hardness is higher, the metallic material that preferred hardness is higher, in the size design of boss, also according to predetermined moment of torsion, calculate its three-dimensional dimension, make after exceeding preset torque fracture fast, avoid the damage of motor.

Describe below with reference to accompanying drawings the alignment device of steel bonding sheet of the present utility model, wherein Fig. 1 is the coupling that tradition is used; Fig. 2 is according to a kind of embodiment's front view of the present utility model; Fig. 3-5th, the different embodiments' of Fig. 2 cross sectional representation; Fig. 6 is a kind of embodiment's of Fig. 2 front view.

As shown in Figure 2, according to embodiment of the present utility model, described coupling comprises shaft coupling parts 1, described shaft coupling parts 1 are for to have by the cylindrical body of the central through bore 11 of central axis X, and has the opening 12 formed along on the directions X that parallels to the axis on the cylinder wall 13 of described cylindrical body and described through hole 11 formations, described central through bore 11 is used for passing two axle heads of required connection, the pressure produced in the mismatch error produced when described opening 12 is used for absorbing described coupling and coordinates with axle head and installation process;

And

At least one boss 2, described boss 2 are arranged on described periphery and edge is parallel to the rectangular projection on described central axis X direction.

According to described to prior art in this patent background technique, as shown in Figure 1, because coupling commonly used is all generally that cylinder forms, when the motor High Rotation Speed, the fricative amount of heat that coupling and working shaft relative sliding can occur and cause thus, thereby cause the rising of coupling self temperature, cause on the one hand the error of motor transmission aspect, also greatly affected the working life of coupling simultaneously.And the disclosed coupling of the utility model, existence due to described boss, in installation process, insert in corresponding opening on the one hand, as shown in Figure 2, avoided the appearance of relative sliding, the shape process due to boss designs on the other hand, but makes its fracture after exceeding preset torque, thereby the situation of avoiding damaging motor occurs therefore having obvious advantage.

According to embodiment of the present utility model, described central through bore 11 cross-section areas are the closed curve structure of camber line formation or the sealing composite structure of curve and straight line;

Preferably, described curve is circular arc.

According to embodiments more of the present utility model, central through bore 11 cross-section areas can be comprised of circular arc and oblique line section;

According to embodiments more of the present utility model, central through bore 11 cross-section areas can be comprised of circular arc and wedge angle line segment;

According to embodiments more of the present utility model, central through bore 11 cross-section areas can be comprised of the part of circular arc and rectangle;

Described central through bore 11 can match with motor shaft, and an end of coupling connects motor shaft, and the other end connects working shaft.

According to embodiments more of the present utility model, the diameter of described circular arc is for being more than or equal to 10mm and being less than or equal to 52mm.

According to embodiments more of the present utility model, described land length is more than or equal to 2mm and is less than or equal to 20mm.

According to embodiments more of the present utility model, described shaft coupling part length is less than or equal to 50mm.

According to embodiments more of the present utility model, described boss 2 has two, as shown in Figure 2-5.

Preferably, described boss 2 is symmetrically distributed in described periphery according to the position of described opening 12 on described cylindrical body.

According to embodiments more of the present utility model, described boss 2 has one, as shown in Figure 6.

According to embodiments more of the present utility model, described coupling is metal structure.

Preferably, described metallic material is P20 or S136 or SKD10 or A3 steel.

Any mentioning " embodiment ", " embodiment ", " illustrative examples " etc. mean to be contained at least one embodiment of the present utility model in conjunction with concrete member, structure or characteristics that this embodiment describes.In this schematic statement everywhere of this specification, not necessarily refer to identical embodiment.And when in conjunction with any embodiment, describing concrete member, structure or characteristics, what advocate is, within conjunction with other embodiment, realizing that such member, structure or characteristics all drop on those skilled in the art's scope.

Although with reference to a plurality of illustrative examples of the present utility model, embodiment of the present utility model is described in detail, but it must be understood that, those skilled in the art can design multiple other improvement and embodiment, and these improve and within embodiment will drop on the spirit and scope of the utility model principle.Particularly, within the scope of aforementioned open, accompanying drawing and claim, can aspect the layout of component and/or subordinate composite configuration, make rational modification and improvement, and can not break away from spirit of the present utility model.Except modification and the improvement of component and/or layout aspect, its scope is limited by claims and equivalent thereof.

Claims

1. a coupling, is characterized in that, comprising:

The shaft coupling parts, described shaft coupling parts are the cylindrical body had by the central through bore of central axis, and has the opening formed along on the direction that parallels to the axis on the cylinder wall of described cylindrical body and described through hole formation, described central through bore is used for passing two axle heads of required connection, the pressure produced in the mismatch error produced when described opening is used for absorbing described coupling and coordinates with axle head and installation process;

And

At least one boss, described boss are arranged on described periphery and edge is parallel to the cuboid projection on described central axial direction.

2. coupling according to claim 1, is characterized in that, described central through bore cross-section area is the closed curve structure of curve formation or the sealing composite structure of curve and straight line.

3. coupling according to claim 2, is characterized in that, described curve is circular arc.

4. coupling according to claim 3, is characterized in that, the diameter of described circular arc is for being more than or equal to 10mm and being less than or equal to 52mm.

5. coupling according to claim 1, is characterized in that, described land length is more than or equal to 2mm and is less than or equal to 20mm.

6. coupling according to claim 1, is characterized in that, described shaft coupling part length is less than or equal to 50mm.

7. coupling according to claim 1, is characterized in that, described boss has two.

8. coupling according to claim 7, is characterized in that, described boss is symmetric at described periphery according to the position of described opening on described cylindrical body.

9. according to the described coupling of any one in claim 1-8, it is characterized in that, described coupling is metal structure.

10. coupling according to claim 9, is characterized in that, described metal structure is P20 or S136 or SKD10 or A3 steel structure.