CN216382298U - Coupling device - Google Patents

Coupling device Download PDF

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Publication number
CN216382298U
CN216382298U CN202123345801.6U CN202123345801U CN216382298U CN 216382298 U CN216382298 U CN 216382298U CN 202123345801 U CN202123345801 U CN 202123345801U CN 216382298 U CN216382298 U CN 216382298U
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China
Prior art keywords
coupling
core
connector
ring
convex
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Application number
CN202123345801.6U
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Chinese (zh)
Inventor
施尔韵
喻如婷
张永闯
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Thyssenkrupp Presta Shanghai Co ltd
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Thyssenkrupp Presta Shanghai Co ltd
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Priority to CN202123345801.6U priority Critical patent/CN216382298U/en
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Abstract

The utility model discloses a coupling device, which comprises a first coupling with a first coupling hole, a second coupling with a second coupling hole and an intermediate connector, wherein the first coupling is provided with a first coupling hole; the intermediate connector includes a connector core and a connector body connected between the first coupling and the second coupling; the connector core is provided with a core first convex part and a core second convex part; the core first projection is at least partially fitted in the first coupling bore and the core second projection is at least partially fitted in the second coupling bore. According to the coupling device disclosed by the utility model, the first core convex part and the second core convex part are arranged on the connector core body of the intermediate connector, when the coupling device is assembled, one part of the first core convex part is plugged into the first coupling hole, and one part of the second core convex part is plugged into the second coupling hole, so that the axial clearance among the first coupling, the intermediate connector and the second coupling is reduced, and the noise can be effectively reduced.

Description

Coupling device
Technical Field
The utility model relates to the technical field of connection of a motor shaft and a worm, in particular to a coupler device.
Background
In the field of machinery, especially in the field of steering shafts of automobiles, a motor shaft of a motor is often required to be matched with a worm so as to realize worm and gear transmission.
In the prior art, a coupling is generally adopted between a motor shaft and a worm, and the existing coupling generally comprises a motor shaft coupling, a worm coupling and an intermediate connector for connecting the motor shaft coupling and the worm coupling. During assembly and use, axial gaps exist among the motor shaft coupler, the middle connector and the worm coupler, and noise is easy to generate.
In view of the above, it is necessary to provide a coupling device capable of reducing noise.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a coupling device capable of reducing noise.
The technical scheme of the utility model provides a coupling device which comprises a first coupling with a first coupling hole, a second coupling with a second coupling hole and an intermediate connector assembled between the first coupling and the second coupling;
the intermediate connector comprises a connector core and a connector body connected to the connector core, the connector body being connected between the first coupling and the second coupling;
a first core convex part is arranged on one side, facing the first coupler, of the connector core, and a second core convex part is arranged on one side, facing the second coupler, of the connector core;
the core first projection is at least partially fitted in the first coupling bore and the core second projection is at least partially fitted in the second coupling bore.
In one optional technical solution, the connector core further includes a core connecting ring coaxially arranged with the first coupling shaft hole and the second coupling shaft hole, and the connector body is connected to an outer side of the core connecting ring;
the core body first convex part and the core body second convex part are respectively connected to the middle part of the core body connecting ring and are convex along the axial direction.
In an alternative embodiment, the core first protrusion, the core second protrusion, and the core connecting ring are integrally formed.
In one optional technical solution, the surfaces of the core first convex portion and the core second convex portion are respectively a part of a spherical surface.
In an alternative embodiment, the first core convex portion and the second core convex portion are elastic convex portions respectively.
In an alternative embodiment, the first core convex portion and the second core convex portion are rubber convex portions respectively.
In an optional technical solution, the first coupling comprises a first coupling body, the first coupling hole is disposed on the first coupling body, and a plurality of first protruding blocks are disposed on one side of the first coupling body facing the second coupling;
the second coupler comprises a second coupler main body, the second coupler hole is formed in the second coupler main body, and one side, facing the first coupler, of the second coupler main body is provided with a plurality of second protruding blocks;
the connector body comprises a connector outer ring and a plurality of connector clapboards connected between the connector outer ring and the connector core body, and a connector slot is arranged between any two adjacent connector clapboards;
each of the first bumps and each of the second bumps are independently embedded in one of the connector slots, respectively.
In an optional technical solution, a coupling outer ring is arranged on one side of the first coupling body facing the second coupling;
the connector outer ring is assembled between the first projection, the second projection and the coupling outer ring.
In an optional technical solution, the first coupling body, the first protrusion and the coupling outer ring are integrally formed.
In an alternative embodiment, the second coupling body and the second protrusion are integrally formed.
By adopting the technical scheme, the method has the following beneficial effects:
according to the coupling device provided by the utility model, the first core body convex part and the second core body convex part are arranged on the connector core body of the intermediate connector, when the coupling device is assembled, one part of the first core body convex part is plugged into the first coupling shaft hole, and one part of the second core body convex part is plugged into the second coupling shaft hole, so that the axial clearance among the first coupling, the intermediate connector and the second coupling is reduced, and the noise can be effectively reduced.
Drawings
The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:
fig. 1 is a perspective view of a coupling device according to an embodiment of the present invention;
fig. 2 is an exploded view of a coupling device according to an embodiment of the present invention;
FIG. 3 is an axial cross-sectional view of a coupling device according to one embodiment of the present invention taken along the plane of two symmetrically disposed connector spacers;
FIG. 4 is an axial cross-sectional view of a coupling device according to one embodiment of the present invention taken along the plane of one of the first projections and one of the second projections;
FIG. 5 is a radial cross-sectional view of a coupling device provided in accordance with an embodiment of the present invention;
FIG. 6 is a perspective view of the intermediate connector;
FIG. 7 is a front view of the intermediate connector as viewed from the second male portion side of the core;
fig. 8 is a radial cross-sectional view of the intermediate connector.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1 to 8, an embodiment of the present invention provides a coupling device including a first coupling 1 having a first coupling hole 10, a second coupling 2 having a second coupling hole 20, and an intermediate connector 3 fitted between the first coupling 1 and the second coupling 2.
The intermediate connector 3 includes a connector core 31 and a connector body 32 connected to the connector core 31, the connector body 32 being connected between the first coupling 1 and the second coupling 2.
The side of the connector core 31 facing the first coupling 1 is provided with a core first protrusion 312, and the side of the connector core 31 facing the second coupling 2 is provided with a core second protrusion 313.
The core first projection 312 is at least partially fitted in the first coupling bore 10, and the core second projection 313 is at least partially fitted in the second coupling bore 20.
The coupling device provided by the utility model can be used for connecting a motor shaft and a worm.
The coupling arrangement comprises a first coupling 1, a second coupling 2 and an intermediate connector 3. The intermediate connector 3 is assembled between the first coupling 1 and the second coupling 2, and realizes the transmission connection of the first coupling 1 and the second coupling 2.
The middle part of the first coupler 1 is provided with a first coupling shaft hole 10, and the first coupling shaft hole 10 is a threaded hole and can be assembled and connected with a motor shaft. The second coupling 2 has a second coupling hole 20 in the middle, and the second coupling hole 20 is a threaded hole that can be assembled with the worm. The shaft coupling hole referred to in the present invention is a hole for assembling with a shaft, a worm, or the like, and may also be referred to as a shaft coupling hole, an assembling hole, a connecting hole, or the like.
The intermediate connector 3 includes a connector core 31 and a connector body 32, and the connector core 31 has a circular shape, which is located in the middle of the intermediate connector 3. The connector body 32 is attached to the connector core 31 and surrounds the connector core 31.
The connector body 32 is assembled between the first coupling 1 and the second coupling 2 for realizing the transmission connection of the first coupling 1 and the second coupling 2.
The connector core 31 may be made of a plastic or rubber member. The connector core 31 has a core first projection 312 and a core second projection 313 on opposite sides of the center portion thereof, respectively. The first protrusion 312 and the second protrusion 313 of the core body are also made of plastic or rubber, and have certain elastic deformation capacity, so that the gap between the assembled parts can be made up, the buffering effect is achieved, and the noise can be reduced.
During the assembly, the part of the first convex part 312 of the core is plugged into the first coupling shaft hole 10, the first coupling shaft hole 10 is sleeved on the first convex part 312 of the core, the root of the first convex part 312 of the core is tightly matched with the first coupling shaft hole 10, the gap between the first coupler 1 and the middle connector 3 can be reduced, the assembly stability of the first coupler 1 and the middle connector 3 is improved, and the noise generated between the first coupler 1 and the middle connector due to the axial gap can be effectively reduced.
During assembly, a part of the core body second convex part 313 is inserted into the second coupling shaft hole 20, the second coupling shaft hole 20 is sleeved on the core body second convex part 313, the root part of the core body second convex part 313 is tightly matched with the second coupling shaft hole 20, the gap between the second coupling 1 and the middle connector 3 can be reduced, the assembly stability of the second coupling 2 and the middle connector 3 is improved, and the noise generated by the axial gap between the second coupling 2 and the middle connector can be effectively reduced.
In summary, in the coupling device provided by the present invention, the first core protrusion 312 and the second core protrusion 313 are disposed on the connector core 31 of the intermediate connector 3, and when assembling, a part of the first core protrusion 312 is inserted into the first coupling hole 10, and a part of the second core protrusion 313 is inserted into the second coupling hole 20, so that the axial gap between the first coupling 1, the intermediate connector 3, and the second coupling 2 is reduced, and the noise can be effectively reduced.
In one embodiment, the radius of the root of the core first projection 312 is greater than the radius of the first coupling bore 10, and the radius of the root of the core second projection 313 is greater than the radius of the second coupling bore 20. That is, the root of the core first projecting portion 312 is thicker than the first coupling hole 10, and when the core first projecting portion 312 is fitted into the first coupling hole 10, the root of the core first projecting portion 312 is press-fitted into the first coupling hole 10, and the root of the core first projecting portion 312 is tightly fitted into the first coupling hole 10. The root portion of the core second protrusion 313 is thicker than the second coupling hole 20, and when the core second protrusion 313 is fitted into the second coupling hole 20, the root portion of the core second protrusion 313 is press-fitted into the second coupling hole 20, and the root portion of the core second protrusion 313 is tightly fitted into the second coupling hole 20.
The core first protrusion 312 is adjusted in size according to the corresponding first coupling hole 10, and the core second protrusion 313 is adjusted in size according to the corresponding second coupling hole 20.
In one embodiment, as shown in fig. 2 to 4 and fig. 7 to 8, the connector core 31 further includes a core coupling ring 311 coaxially disposed with the first coupling shaft hole 10 and the second coupling shaft hole 20, and the connector body 32 is coupled to an outer side of the core coupling ring 311. The core first protrusion 312 and the core second protrusion 313 are respectively connected to the middle of the core connection ring 311 and protrude in the axial direction.
In the present embodiment, the connector core 31 includes a core attachment ring 311, a core first protrusion 312, and a core second protrusion 313. The core connection ring 311 is coaxially arranged with the first coupling shaft hole 10 and the second coupling shaft hole 20. The connector body 32 surrounds the core attachment ring 311 outside. The core first protrusion 312 and the core second protrusion 313 are respectively connected to the middle of the core connecting ring 311 and protrude in the axial direction, that is, the core first protrusion 312 is connected to the middle of the core connecting ring 311 and protrudes in the axial direction toward the first coupling hole 10 side, and the core second protrusion 313 is connected to the middle of the core connecting ring 311 and protrudes in the axial direction toward the second coupling hole 20 side. The core first protrusion 312 and the core second protrusion 313 may be connected to each other to form a unitary structure.
In one embodiment, the core first protrusion 312, the core second protrusion 313, and the core attachment ring 311 are integrally formed. The core body first convex part 312, the core body second convex part 313 and the core body connecting ring 311 can be made of plastic or rubber, and the core body first convex part 312, the core body second convex part 313 and the core body connecting ring 311 can be integrally formed, so that the processing and the forming are convenient, and the structural stability is improved.
In one embodiment, as shown in fig. 3-4 and 8, the surfaces of the core first protrusion 312 and the core second protrusion 313 are each a portion of a sphere. The first core convex part 312 and the second core convex part 313 can be spherical crown surfaces or hemispherical surfaces, are beneficial to being plugged into the first circular shaft coupling hole 10 and the second circular shaft coupling hole 20 and are tightly matched with the hole walls of the first circular shaft coupling hole 10 and the second circular shaft coupling hole 20, so that the connection stability is improved, and the axial clearance is reduced.
In one embodiment, the core first protrusion 312 and the core second protrusion 313 are each an elastic protrusion. The elastic protrusions may be plastic protrusions, which are easily inserted into the first coupling shaft hole 10 and the second coupling shaft hole 20, so that the core first protrusion 312 is tightly fitted with the first coupling shaft hole 10, and the core second protrusion 313 is tightly fitted with the second coupling shaft hole 20.
In one embodiment, the first core convex portion 312 and the second core convex portion 313 are respectively rubber convex portions, so that the elastic deformation capability is good, the buffering effect can be improved, and the noise generated by vibration between adjacent components can be reduced.
In one embodiment, as shown in fig. 1 to 8, the first coupling 1 comprises a first coupling body 11, a first coupling bore 10 is provided on the first coupling body 11, and a side of the first coupling body 11 facing the second coupling 2 is provided with a plurality of first protrusions 12.
The second coupling 2 comprises a second coupling body 21, the second coupling bore 20 being provided on the second coupling body 21, a side of the second coupling body 21 facing the first coupling 1 being provided with a plurality of second projections 22.
The connector body 32 includes a connector outer ring 321 and a plurality of connector partitions 322 connected between the connector outer ring 321 and the connector core 31, and a connector insertion groove 323 is provided between any two adjacent connector partitions 322.
Each of the first protrusions 12 and each of the second protrusions 22 are independently inserted into one of the connector slots 323.
In this embodiment, the first coupling 1 comprises a first coupling body 11 and a plurality of first lugs 12. The first coupling hole 10 is provided in the middle of the first coupling body 11. The first protrusions 12 are connected to one side of the first coupling body 11 facing the second coupling 2, and the first protrusions 12 are uniformly distributed around the first coupling hole 10.
The second coupling 2 includes a second coupling body 21 and a plurality of second projections 22. The second coupling shaft hole 20 is provided in the middle of the second coupling main body 21. The second protrusions 22 are connected to the side of the second coupling body 21 facing the first coupling 1, and the second protrusions 22 are uniformly distributed around the second coupling hole 20.
The connector body 32 includes a connector outer ring 321 and a plurality of connector spacers 322, the plurality of connector spacers 322 being connected between the connector outer ring 321 and the connector core 31 at intervals, specifically, the connector spacers 322 being connected between the connector outer ring 321 and the core connection ring 311. A connector insertion groove 323 is formed between any adjacent two connector partitions 322.
The number of the first protrusions 12 is equal to that of the second protrusions 22, the number of the connector partitions 322 is equal to the sum of the number of the first protrusions 12 and the number of the second protrusions 22, and the number of the connector slots 323 is equal to the sum of the number of the first protrusions 12 and the number of the second protrusions 22.
During assembly, each first bump 12 and each second bump 22 are respectively and independently embedded into one connector slot 323, one second bump 22 is arranged between every two first bumps 12, one first bump 12 is arranged between every two second bumps 22, and the adjacent first bumps 12 and second bumps 22 are separated by the connector partition plate 322, so that torque transmission is realized, hard contact between the first bumps 12 and the second bumps 22 can be avoided, and noise reduction is facilitated.
In one of the embodiments, as shown in fig. 1-5, the first coupling body 11 is provided with a coupling outer ring 13 on the side facing the second coupling 2. The connector outer ring 321 fits between the first projections 12, the second projections 22 and the coupling outer ring 13.
The coupling outer ring 13 functions to shield the connector outer ring 321, so as to prevent the connector outer ring 321, the first protrusion 12 and the second protrusion 22 from being exposed, and prevent impurities from entering gaps among the connector outer ring 321, the first protrusion 12 and the second protrusion 22.
In one embodiment, the first coupling body 11, the first projection 12 and the coupling outer ring 13 are integrally formed. The first coupling body 11, the first bump 12 and the coupling outer ring 13 are all metal parts, can be integrally cast and formed, and have high structural strength.
In one embodiment, the second coupling body 21 and the second projection 22 are integrally formed. The second coupling body 21 and the second protrusion 22 are both metal parts, and can be integrally cast and formed, and the structural strength is high.
In conclusion, the coupling device provided by the utility model has the advantages that the adjacent parts are stably connected, the axial clearance is small, and the noise reduction effect is good.
According to the needs, the above technical schemes can be combined to achieve the best technical effect.
The foregoing is considered as illustrative only of the principles and preferred embodiments of the utility model. It should be noted that, for those skilled in the art, several other modifications can be made on the basis of the principle of the present invention, and the protection scope of the present invention should be regarded.

Claims (10)

1. A coupling device comprising a first coupling having a first coupling bore, a second coupling having a second coupling bore, and an intermediate connector fitted between the first coupling and the second coupling;
the intermediate connector comprises a connector core and a connector body connected to the connector core, the connector body being connected between the first coupling and the second coupling;
a first core convex part is arranged on one side, facing the first coupler, of the connector core, and a second core convex part is arranged on one side, facing the second coupler, of the connector core;
the core first projection is at least partially fitted in the first coupling bore and the core second projection is at least partially fitted in the second coupling bore.
2. The coupling device according to claim 1, wherein the connector core further comprises a core connection ring arranged coaxially with the first and second coupling shaft holes, the connector body being connected outside the core connection ring;
the core body first convex part and the core body second convex part are respectively connected to the middle part of the core body connecting ring and are convex along the axial direction.
3. The coupling device of claim 2, wherein the core first projection, the core second projection, and the core connecting ring are integrally formed.
4. A coupling device according to claim 1, wherein the surfaces of the core first and second protrusions are each a portion of a spherical surface.
5. The coupling device according to claim 1, wherein the core first protrusions and the core second protrusions are respectively elastic protrusions.
6. The coupling device according to claim 5, wherein the core first protrusions and the core second protrusions are rubber protrusions, respectively.
7. The coupling device according to any one of claims 1 to 6, wherein the first coupling comprises a first coupling body, the first coupling hole being provided on the first coupling body, a side of the first coupling body facing the second coupling being provided with a plurality of first projections;
the second coupler comprises a second coupler main body, the second coupler hole is formed in the second coupler main body, and one side, facing the first coupler, of the second coupler main body is provided with a plurality of second protruding blocks;
the connector body comprises a connector outer ring and a plurality of connector clapboards connected between the connector outer ring and the connector core body, and a connector slot is arranged between any two adjacent connector clapboards;
each of the first bumps and each of the second bumps are independently embedded in one of the connector slots, respectively.
8. A coupling device according to claim 7, characterized in that the first coupling body is provided with a coupling outer ring on the side facing the second coupling;
the connector outer ring is assembled between the first projection, the second projection and the coupling outer ring.
9. The coupling device of claim 8, wherein the first coupling body, the first tab, and the coupling outer ring are integrally formed.
10. The coupling device of claim 7, wherein the second coupling body and the second tab are integrally formed.
CN202123345801.6U 2021-12-28 2021-12-28 Coupling device Active CN216382298U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123345801.6U CN216382298U (en) 2021-12-28 2021-12-28 Coupling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123345801.6U CN216382298U (en) 2021-12-28 2021-12-28 Coupling device

Publications (1)

Publication Number Publication Date
CN216382298U true CN216382298U (en) 2022-04-26

Family

ID=81237691

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123345801.6U Active CN216382298U (en) 2021-12-28 2021-12-28 Coupling device

Country Status (1)

Country Link
CN (1) CN216382298U (en)

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