CN216599281U - Linear adjusting mechanism and axial clearance control device thereof - Google Patents
Linear adjusting mechanism and axial clearance control device thereof Download PDFInfo
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- CN216599281U CN216599281U CN202122910210.2U CN202122910210U CN216599281U CN 216599281 U CN216599281 U CN 216599281U CN 202122910210 U CN202122910210 U CN 202122910210U CN 216599281 U CN216599281 U CN 216599281U
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- gear
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Abstract
The utility model discloses a linear adjusting mechanism and an axial clearance control device thereof, comprising: the box body is internally provided with an axial through hole, and one end of the box body is provided with an accommodating cavity; the motor shaft penetrates through the through hole; the elastic cushion is arranged in the accommodating cavity and is abutted with one end part of the motor shaft through a wear-resistant hard cushion; the sections of the elastic pad and the hard pad are larger than the section of the motor shaft. The utility model can improve the hardness of the elastic cushion, reduce the deformation of the elastic cushion, ensure the performance output while eliminating abnormal sound, and can control the radial run-out of the motor shaft by the motor shaft passing through the through hole on the box body, thereby having the advantages of good stability, small play, simple structure and the like.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a linear adjusting mechanism and an axial clearance control device thereof.
Background
The motor shaft generally has axial movement, and in the design process, if the axial clearance is large, impact abnormal sound can be generated during starting or reversing; if the axial clearance is small, the control is difficult, and the requirement on the size error of the part is too high; the clearance is completely eliminated, the motor shaft is easily compressed, the internal loss is overlarge, and the output performance of the motor is too low. Therefore, it is necessary to control the axial gap of the motor to eliminate abnormal noise and ensure performance output.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a linear adjustment mechanism and an axial gap control device thereof.
A linear adjusting mechanism and an axial clearance control device thereof comprise:
the box body is internally provided with an axial through hole, and one end of the box body is provided with an accommodating cavity;
the motor shaft penetrates through the through hole;
the elastic cushion is arranged in the accommodating cavity and is abutted with one end part of the motor shaft through a wear-resistant hard cushion;
the sections of the elastic pad and the hard pad are both larger than the section of the motor shaft.
In one embodiment, a box cover covers the box body, a positioning hole is formed in the box body, and a stepped positioning pin is arranged on the box cover and matched with the positioning hole.
In one embodiment, the stepped positioning pin comprises a guide cylinder and a positioning cylinder which are coaxially arranged, the guide cylinder plays a role in guiding when the box cover is installed on the box body, and the outer diameter of the positioning cylinder is matched with the inner diameter of the positioning hole.
In one embodiment, the box body and the box cover are fixedly connected through a buckle, the buckle comprises a locking platform and a barb type insertion block which are matched with each other, the locking platform is arranged in the circumferential direction of the box body at intervals, and the barb type insertion block is correspondingly arranged in the circumferential direction of the box cover.
In one embodiment, the motor shaft is connected to a worm that mates with a gear.
In one embodiment, connecting columns are arranged on two sides of the gear, the connecting columns are installed on the box body and the box cover, and one side of one connecting column is connected with a screw rod.
In one embodiment, the lead screw, the connecting column and the gear are integrally injection molded.
In one embodiment, the lead screw, the connecting column and the gear are arranged coaxially with each other.
In one embodiment, the gear is internally provided with a threaded sleeve, and the threaded sleeve is internally connected with a screw rod in a threaded manner.
According to the linear adjusting mechanism and the axial clearance control device thereof, the through hole for mounting the motor shaft is separated from the containing cavity, the size of the elastic pad can be increased, the end part of the motor shaft is propped against the wear-resistant hard pad, the axial clearance is eliminated by extruding the elastic pad, the hardness of the elastic pad can be improved, the deformation of the elastic pad is reduced, the performance output is ensured while abnormal sound is eliminated, and the radial jumping of the motor shaft can be controlled by the motor shaft penetrating through the through hole in the box body, so that the linear adjusting mechanism and the axial clearance control device thereof have the advantages of good stability, small play, simple structure and the like.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a linear adjustment mechanism and its axial clearance control arrangement of the present invention;
FIG. 2 is a schematic structural view of the case of the present invention;
FIG. 3 is a schematic view of the construction of the cover of the present invention;
FIG. 4 is a schematic structural view of the lock station of the present invention;
FIG. 5 is a schematic view of the position of the gear of the present invention;
FIG. 6 is a schematic view of an integrated lead screw structure of the present invention;
FIG. 7 is an exploded view of the screw of the present invention in one piece;
FIG. 8 is a schematic view of a lead screw through configuration of the present invention;
fig. 9 is an exploded view of a lead screw penetration type of the present invention.
Detailed Description
To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 9, an embodiment of the present invention provides a linear adjustment mechanism and an axial gap control device thereof, including:
the box body 1 is internally provided with an axial through hole 11, and one end of the box body 1 is provided with an accommodating cavity 12;
the motor shaft 2 is arranged in the through hole 11 in a penetrating mode;
the elastic pad 3 is arranged in the accommodating cavity 12, and the elastic pad 3 is abutted with one end part of the motor shaft 2 through a wear-resistant hard pad 4; in this embodiment, the elastic pad 3 may be a rubber pad, and the wear-resistant hard pad 4 may be a plastic pad. The plastic gasket is in contact with the motor shaft 2 to provide a wear-resistant support; the elastic pad 3 is deformed by force to absorb the play clearance of the motor shaft 2. Alternatively, the end of the motor shaft 2 may be formed as a ball head to reduce rotational friction loss.
The sections of the elastic pad 3 and the hard pad 4 are both larger than the section of the motor shaft 2.
The linear adjusting mechanism and the axial clearance control device thereof have the advantages that the through hole 11 for installing the motor shaft 2 is separated from the containing cavity 12, the size of the elastic pad 3 can be increased, the end part of the motor shaft 2 is propped against the wear-resistant hard pad 4, the axial clearance is eliminated by extruding the elastic pad 3, the hardness of the elastic pad 3 can be improved, the deformation of the elastic pad 3 is reduced, the performance output is ensured while abnormal sound is eliminated, and the radial jumping of the motor shaft 2 can be controlled by the motor shaft 2 penetrating through the through hole 11 on the box body 1, so that the linear adjusting mechanism and the axial clearance control device thereof have the advantages of good stability, small jumping, simple structure and the like.
In an embodiment of the present invention, a box cover 5 is covered on the box body 1, a positioning hole 6 is arranged on the box body 1, a stepped positioning pin 7 is arranged on the box cover 5, and the stepped positioning pin 7 is matched with the positioning hole 6. Therefore, the positioning device has the advantages of simplicity and convenience in disassembly and assembly, high positioning precision and the like.
Specifically, the stepped positioning pin 7 includes a guide cylinder 71 and a positioning cylinder 72 which are coaxially arranged, the guide cylinder 71 plays a guiding role when the box cover 5 is installed on the box body 1, and the outer diameter of the positioning cylinder 72 is matched with the inner diameter of the positioning hole 6.
In the present embodiment, the guide cylinder 71 is used for guiding when the case cover 5 is attached to the case 1, and the positioning cylinder 72 is used for positioning after the case 1 and the case cover 5 are attached. Optionally, the stepped positioning pin 7 can be arranged at an oblique angle, so that the installation is more accurate and convenient.
In an embodiment of the present invention, the box body 1 and the box cover 5 are fixedly connected by a buckle 8, the buckle 8 includes a locking platform 81 and a barb type insertion block 82 which are matched with each other, the locking platform 81 is arranged at intervals in the circumferential direction of the box body 1, and the barb type insertion block 82 is correspondingly arranged in the circumferential direction of the box cover 5. In this embodiment, the engagement between the barb-type insert 82 and the locking platform 81 makes the engagement between the box body 1 and the box cover 5 more secure and is not easy to disengage.
In one embodiment of the present invention, the motor shaft 2 is connected to a worm 9, and the worm 9 is engaged with a gear 10. In this way, when the motor drives the motor shaft 2 and the worm 9 clockwise, the control module energizes the motor to drive the gear 10 to rotate clockwise.
It should be noted that, the gear 10 mounting holes of the box body 1 and the box cover 5 are through holes, two structures of a screw rod penetrating type and a screw rod integrated type can be derived, the effects of screw rod translation and screw rod rotation are respectively realized, the practicability of the platform product can be expanded, and different customer requirements can be met.
Specifically, referring to fig. 6 to 7, in the screw integrated structure of the present invention, in one embodiment, connecting columns 13 are provided on both sides of the gear 10, the connecting columns 13 are mounted on the case body 1 and the case cover 5, and a screw 11 is connected to one side of one of the connecting columns 13. In this embodiment, the connecting column 13 is mainly matched with the mounting holes on the box body 1 and the box cover 5.
In one embodiment, the lead screw 11, the connecting column 13 and the gear 10 are integrally injection molded. Thus, the synchronous rotation of the gear 10 and the screw rod 11 can be realized.
In one embodiment, the spindle 11, the connecting column 13 and the gear 10 are arranged coaxially with respect to one another. Thus, the transmission efficiency of the screw 11 can be improved.
Referring to fig. 8-9, in the screw rod penetrating structure of the present invention, a threaded sleeve 12 is disposed inside the gear 10, and a screw rod 11 is connected to the threaded sleeve 12 through a thread. The rotation of the gear 10 can drive the screw rod 11 to move up and down.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described examples merely represent several embodiments of the present application and are not to be construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.
Claims (9)
1. A linear adjusting mechanism and an axial clearance control device thereof are characterized by comprising:
the box body is internally provided with an axial through hole, and one end of the box body is provided with an accommodating cavity;
the motor shaft penetrates through the through hole;
the elastic cushion is arranged in the accommodating cavity and is abutted with one end part of the motor shaft through a wear-resistant hard cushion;
the sections of the elastic pad and the hard pad are both larger than the section of the motor shaft.
2. The linear adjustment mechanism and its axial clearance control device of claim 1, wherein the housing is covered with a cover, the housing is provided with a positioning hole, the cover is provided with a stepped positioning pin, and the stepped positioning pin is engaged with the positioning hole.
3. The linear adjustment mechanism and its axial clearance control device of claim 2, wherein the stepped positioning pin comprises a guide cylinder and a positioning cylinder which are coaxially arranged, the guide cylinder is used for guiding when the box cover is installed on the box body, and the outer diameter of the positioning cylinder is matched with the inner diameter of the positioning hole.
4. The linear adjustment mechanism and the axial gap control device thereof as claimed in claim 1, wherein the housing and the cover are fixedly connected by a snap, the snap comprises a locking platform and a barb type insert which are mutually matched, the locking platform is arranged at intervals in the circumferential direction of the housing, and the barb type insert is correspondingly arranged in the circumferential direction of the cover.
5. The linear adjustment mechanism and its axial gap control device of claim 1, wherein the motor shaft is connected with a worm, and the worm is engaged with a gear.
6. The linear adjusting mechanism and the axial gap control device thereof as claimed in claim 5, wherein the gear is provided at both sides thereof with connection posts installed on the case body and the case cover, and one side of one of the connection posts is connected with a screw.
7. The linear adjustment mechanism and its axial gap control device of claim 6, wherein the lead screw, the connecting column and the gear are integrally injection molded.
8. The linear adjustment mechanism and its axial gap control device of claim 7, wherein the lead screw, the connection post and the gear are coaxially arranged with each other.
9. The linear adjusting mechanism and the axial gap control device thereof as claimed in claim 5, wherein the gear is internally provided with a threaded sleeve, and the threaded sleeve is internally threaded with a lead screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122910210.2U CN216599281U (en) | 2021-11-25 | 2021-11-25 | Linear adjusting mechanism and axial clearance control device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122910210.2U CN216599281U (en) | 2021-11-25 | 2021-11-25 | Linear adjusting mechanism and axial clearance control device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216599281U true CN216599281U (en) | 2022-05-24 |
Family
ID=81649715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122910210.2U Active CN216599281U (en) | 2021-11-25 | 2021-11-25 | Linear adjusting mechanism and axial clearance control device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216599281U (en) |
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2021
- 2021-11-25 CN CN202122910210.2U patent/CN216599281U/en active Active
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