CN107131220B - Elastic coupling and automobile - Google Patents
Elastic coupling and automobile Download PDFInfo
- Publication number
- CN107131220B CN107131220B CN201710520706.4A CN201710520706A CN107131220B CN 107131220 B CN107131220 B CN 107131220B CN 201710520706 A CN201710520706 A CN 201710520706A CN 107131220 B CN107131220 B CN 107131220B
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- Prior art keywords
- elastic coupling
- rubber
- rubber block
- metal
- blocks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/12—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted for accumulation of energy to absorb shocks or vibration
Abstract
The invention provides an elastic coupling and an automobile, and relates to the technical field of automobile parts, wherein the elastic coupling comprises: a plurality of rubber blocks and a plurality of metal blocks; the two metal blocks are connected through one rubber block, and the plurality of rubber blocks and the plurality of metal blocks are connected into an annular structure. According to the scheme, the pure rubber structure is adopted, so that the production cost is reduced, the elastic deformation quantity of the elastic coupling is improved, the tension and compression bearing capacity is improved, and the torsion damping effect is achieved; through setting up the metal block, realized right elastic coupling's axial and radial spacing has avoided the rubber block leads to damaging owing to transship.
Description
Technical Field
The invention belongs to the technical field of automobile parts, and particularly relates to an elastic coupling and an automobile.
Background
As shown in fig. 1, the elastic coupling is used for connecting with the main reducer assembly 4 through bolts penetrating through a main reduction flange 10 and connecting with the transmission shaft 5 through bolts penetrating through a transmission shaft flange 9, and the elastic coupling can be generally regarded as one of universal couplings, also called flexible hinges. In the prior art, as shown in fig. 2, the elastic coupling generally comprises a rubber body 6, a metal sleeve 7, a nylon wire harness 8, and other elements, wherein the nylon wire harness 8 is disposed in the rubber body 6, and the nylon wire harness 8 is a main bearing element in the process of transmitting torque of the elastic coupling. Because the deformation of the nylon wire harness 8 is small, after rubber is vulcanized, the tensile and compression bearing capacity of the nylon wire harness is low, the adaptive axial working angle is small, and the torsional vibration damping effect is general; in addition, the nylon wire harness 8 needs special equipment for binding the wire harness and determining the tensile force, and the manufacturing cost is high.
Disclosure of Invention
The invention aims to provide an elastic coupling and an automobile, and solves the problems that the elastic coupling in the prior art is low in bearing capacity, small in adaptive angle and high in manufacturing cost.
In order to achieve the above object, an embodiment of the present invention provides an elastic coupling, including:
a plurality of rubber blocks and a plurality of metal blocks; the two metal blocks are connected through one rubber block, and the plurality of rubber blocks and the plurality of metal blocks are connected into an annular structure.
The metal block comprises a connecting part and a limiting part, wherein the width of a first end face of the connecting part is smaller than that of a second end face, the limiting part is connected to the first end face, and the limiting part forms the inner surface of the elastic coupling.
The limiting part comprises a first part of a curved surface structure and a second part of a plane structure; the first part and the second part form a T shape, and the T shapes of the adjacent limiting parts are mutually inverted.
Wherein, adjacent first portion, in the axial of elastic coupling, is provided with first clearance.
Wherein the first portion and the adjacent second portion are provided with a second gap on the inner surface of the elastic coupling.
Wherein, be provided with a plurality of bolt mounting holes on the connecting portion.
Wherein the rubber block and the metal block adjacent to the rubber block are bonded by vulcanization.
The rubber block is fixedly connected with the metal block adjacent to the rubber block.
The present invention also provides an automobile, wherein the automobile comprises: the main reducing gear assembly and transmission shaft, and, connect the main reducing gear assembly with the elastic coupling of transmission shaft, wherein, elastic coupling is as above elastic coupling.
The technical scheme of the invention at least has the following beneficial effects:
according to the embodiment of the invention, the nylon wire harness in the rubber body of the elastic coupling in the prior art is eliminated, so that the production cost of the elastic coupling is reduced; by adopting the pure rubber block structure, the elastic deformation and the tension and compression bearing capacity of the elastic coupling are improved, so that the elastic coupling is adaptive to a larger axial working angle, the adaptive range of the coupling is greatly improved, and meanwhile, the elastic coupling has a better torsion damping effect; through increasing the metal block between the rubber block, the metal block has realized right elastic coupling's axial and radial limit function, the effectual overload damage of avoiding elastic coupling.
Drawings
FIG. 1 is a schematic view of the connection of an elastic coupling with a final drive assembly and a drive shaft;
FIG. 2 is a schematic view of a prior art elastomeric coupling;
FIG. 3 is a schematic view of an elastomeric coupling in accordance with an embodiment of the present invention;
fig. 4 is a schematic view of the connection of the elastic coupling and the three-jaw double-hole flange according to the embodiment of the invention.
Description of reference numerals:
the main reducer comprises a rubber block 1, a metal block 2, a bolt mounting hole 3, a main reducer assembly 4, a transmission shaft 5, a rubber body 6, a metal sleeve 7, a nylon wire harness 8, a transmission shaft flange 9, a main subtraction flange 10, a three-jaw double-hole flange 11, a connecting part 21, a limiting part 22, a first part 221 and a second part 222.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides an elastic coupling, aiming at the problems that the adaptive axial working angle is smaller and the vibration reduction effect is common due to higher manufacturing cost, smaller deformation, lower tension and compression bearing capacity of the elastic coupling in the prior art, and the elastic coupling 8 has low manufacturing cost, good vibration reduction effect and wide application range and effectively avoids overload damage through the structural design.
As shown in fig. 3, an embodiment of the present invention provides an elastic coupling including:
a plurality of rubber blocks 1 and a plurality of metal blocks 2; the two metal blocks 2 are connected through one rubber block 1, and the plurality of rubber blocks 1 and the plurality of metal blocks 2 are connected to form an annular structure.
Further, the metal block 2 comprises a connecting portion 21 and a limiting portion 22, wherein the cross section of the connecting portion 21 is a trapezoid, and the width of a first end surface of the connecting portion 21 is smaller than that of a second end surface; the limiting part 22 is connected to the first end face, and the limiting part 22 forms the inner surface of the elastic coupling.
Specifically, the connecting portion 21 is configured as a trapezoid structure, a plurality of metal blocks 2 are arranged at a certain angle, and the adjacent metal blocks 2 are connected by the rubber block 1, so that the elastic coupling forms an annular structure. The end face of the rubber block 1 along the radial direction of the elastic coupling is approximately trapezoidal, the distance between the two end faces of the rubber block 1 connected with the metal block 2 is the same as the distance between the side end faces of the connecting part 21 of the adjacent metal block 2, and the rubber block 1 is attached to the connecting part 21; the other two opposite end faces in the rubber block 1 are provided with bending radians sunken into the rubber block 1, and the bending radians improve the stability of the elastic deformation process of the rubber block 1.
The rubber block 1 in the elastic coupling of the embodiment of the invention adopts a pure rubber block structure, so that the deformation of the elastic coupling is increased, and meanwhile, the tension and compression bearing capacity of the elastic coupling is also enhanced, so that the elastic coupling can adapt to a larger axial working angle, and the application range of the elastic coupling is greatly improved; in addition, the elasticity of the pure rubber block is good, so that the elastic coupling has a better torsion damping effect.
Further, the position-limiting part 22 comprises a first part 221 of a curved structure and a second part 222 of a planar structure; the first portion 221 and the second portion 222 form a T-shape, and the T-shapes of the adjacent limiting portions 22 are inverted.
Will spacing portion 22 designs for the T font, and will be adjacent spacing portion 22's T font is invertd each other, in the use, has realized through rubber block 1 transmits load, under the too big condition of load, spacing portion 22 is spacing transmission each other to effectual protection rubber block 1 leads to damaging owing to transshipping.
Specifically, a first gap is formed between adjacent first portions 221 in the axial direction of the elastic coupling; first clearance is used for the restriction spacing portion 22 is at axial spacing degree, works as elastic coupling produces elastic deformation in the axial, metal block 2 follows rubber block 1 moves in the axial, and until adjacent the border of first portion 221 contacts the back each other, rubber block 1 no longer takes place elastic deformation, promptly first clearance is used for controlling rubber block 1 is in elastic coupling's the ascending deflection of axial, thereby prevents rubber block 1 is in elastic coupling's the ascending deformation of axial transships leads to damaging.
Specifically, the first portion 221 and the adjacent second portion 222 are provided with a second gap on the inner surface of the elastic coupling; the second gap is used for limiting the radial limiting degree of the limiting portion 22, when the elastic coupling elastically deforms in the radial direction, the metal block 2 moves in the radial direction along with the rubber block 1 until the edge of the first portion 221 contacts with the edge of the adjacent second portion, and the rubber block 1 does not elastically deform any more, namely the second gap is used for controlling the deformation of the rubber block 1 in the radial direction of the elastic coupling, so that the rubber block 1 is prevented from being damaged due to overload in the radial direction of the elastic coupling.
It should be noted that the first gap is smaller than the length of the first portion 221 in the axial direction of the elastic coupling, and the second gap is smaller than the minimum distance between the edge of the first portion 221 of the limiting portion 22 and the edge of the second portion 222, so as to achieve the axial and radial bidirectional limiting function of the elastic coupling.
Further, a plurality of bolt mounting holes 3 are formed in the connecting portion 21, the bolt mounting holes 3 penetrate through the top surface and the bottom surface of the connecting portion 21, and the bolt mounting holes 3 are penetrated through bolts to achieve fixed connection of the main speed reducer assembly 4 and the transmission shaft 5 with the elastic coupling.
Specifically, as shown in fig. 4, the elastic coupling includes six rubber blocks 1 and six metal blocks 2, and a connecting portion 21 of each metal block 2 is provided with two bolt mounting holes 3; the main speed reducer assembly 4 is fixedly connected with the elastic coupling through a three-jaw double-hole flange plate 11, wherein the three-jaw double-hole flange plate 11 penetrates through the bolt mounting holes 3 through bolts and is fixedly connected with the connecting parts 21 which are spaced from each other; similarly, the transmission shaft 5 may also be fixedly connected to the other three metal blocks 2 of the elastic coupling via another three-jaw double-hole flange 11, and the main reducer assembly 4 is connected to the transmission shaft 5 via a through hole formed in the elastic coupling, wherein the main reducer assembly 4 is fixedly connected to the transmission shaft 5 via a metal or plastic bushing disposed in the through hole after being centrally positioned.
The connecting part 21 is provided with a plurality of bolt mounting holes 3, so that the connection firmness of the three-jaw double-hole flange plate 11 and the elastic coupling is improved, and the phenomenon that the three-jaw double-hole flange plate 11 and the elastic coupling are not firmly connected and fall off in the use process is prevented.
It should be noted that, the main reducer assembly 4 and the transmission shaft 5 may be fixedly connected to the elastic coupling by the three-jaw double-hole flange 11, but not limited to using the three-jaw double-hole flange 11, and may also be fixedly connected by a multi-hole flange, and any way that can connect the main reducer assembly 4 and the transmission shaft 5 to the elastic coupling is within the protection scope of the present invention.
Further, the rubber block 1 and the metal block 2 adjacent to the rubber block 1 are bonded in a vulcanization mode with high joint strength and smooth interfaces, so that the rubber block 1 is fixedly connected with the metal block 2.
According to the embodiment of the invention, the rubber body 6 provided with the nylon wire harness 8 is replaced by the pure rubber structure, so that the manufacturing cost of the elastic coupling is reduced, the elastic deformation and the tension and compression bearing capacity of the elastic coupling are improved, the elastic coupling can adapt to a larger axial working angle, and the elastic coupling has an excellent torsion damping effect; the metal blocks 2 are arranged between the adjacent rubber blocks 1, so that the bidirectional limiting function of the elastic coupling is realized, and the rubber blocks 1 are prevented from being damaged due to overload; the elastic coupling of the embodiment of the invention has a simpler structure, has the size equivalent to that of the elastic coupling in the prior art, can directly replace the elastic coupling in the prior art, and reduces the production cost.
The embodiment of the present invention further provides an automobile, wherein the automobile includes: main reducer assembly 4 and transmission shaft 5, and, connect main reducer assembly 4 with the elastic coupling of transmission shaft 5, wherein, elastic coupling is as above elastic coupling.
Correspondingly, the elastic coupling is applied to the automobile, so the embodiment of the invention also provides the automobile, wherein the implementation embodiments of the elastic coupling are all suitable for the embodiment of the automobile, and the same technical effect can be achieved.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. An elastomeric coupling, comprising: a plurality of rubber blocks (1) and a plurality of metal blocks (2); the two metal blocks (2) are connected through one rubber block (1), and the plurality of rubber blocks (1) and the plurality of metal blocks (2) are connected to form an annular structure;
the metal block (2) comprises a connecting part (21) and a limiting part (22), wherein the width of a first end face of the connecting part (21) is smaller than that of a second end face, the limiting part (22) is connected to the first end face, and the limiting part (22) forms the inner surface of the elastic coupling;
wherein the limiting part (22) comprises a first part (221) of a curved surface structure and a second part (222) of a plane structure; wherein the first part (221) and the second part (222) form a T shape, and the T shapes of the adjacent limiting parts (22) are inverted.
2. An elastic coupling according to claim 1, characterized in that adjacent first portions (221), in the axial direction of the elastic coupling, are provided with a first gap.
3. An elastic coupling according to claim 2, characterized in that the first part (221) and the adjacent second part (222) are provided with a second gap on the inner surface of the elastic coupling.
4. An elastic coupling according to claim 1, characterized in that the connecting portion (21) is provided with a plurality of bolt mounting holes (3).
5. An elastic coupling according to claim 1, characterized in that the rubber block (1) and the metal block (2) adjacent to the rubber block (1) are bonded by vulcanization;
the rubber block (1) is fixedly connected with the metal block (2) adjacent to the rubber block (1).
6. An automobile, comprising: -a final drive assembly (4) and a drive shaft (5), and-an elastic coupling connecting the final drive assembly (4) and the drive shaft (5), wherein the elastic coupling is an elastic coupling according to any of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710520706.4A CN107131220B (en) | 2017-06-30 | 2017-06-30 | Elastic coupling and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710520706.4A CN107131220B (en) | 2017-06-30 | 2017-06-30 | Elastic coupling and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107131220A CN107131220A (en) | 2017-09-05 |
| CN107131220B true CN107131220B (en) | 2020-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710520706.4A Active CN107131220B (en) | 2017-06-30 | 2017-06-30 | Elastic coupling and automobile |
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| Country | Link |
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| CN (1) | CN107131220B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611459A (en) * | 2019-01-21 | 2019-04-12 | 柳州日高汽车减振技术有限责任公司 | A kind of yielding coupling |
| CN112268072B (en) * | 2020-10-27 | 2021-11-23 | 东风越野车有限公司 | Multistage flexible torque transmission device with variable torsional rigidity |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207034014U (en) * | 2017-06-30 | 2018-02-23 | 北京汽车研究总院有限公司 | A kind of yielding coupling and automobile |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB886715A (en) * | 1959-07-18 | 1962-01-10 | Gomma Antivibranti Applic | Improvements in elastic couplings for the transmission of torque |
| US4310579A (en) * | 1979-01-13 | 1982-01-12 | Dunlop Limited | Elastomeric elements |
| JP2001280355A (en) * | 2000-03-31 | 2001-10-10 | Nsk Ltd | Elastic coupling |
| CN204284235U (en) * | 2014-11-17 | 2015-04-22 | 北汽福田汽车股份有限公司 | A kind of flexible universal joint and there is its driving-shaft assembly and vehicle |
| CN205190553U (en) * | 2015-11-17 | 2016-04-27 | 重庆长安汽车股份有限公司 | Transmission shaft is with inhaling flexible -connector that shakes |
-
2017
- 2017-06-30 CN CN201710520706.4A patent/CN107131220B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207034014U (en) * | 2017-06-30 | 2018-02-23 | 北京汽车研究总院有限公司 | A kind of yielding coupling and automobile |
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| CN107131220A (en) | 2017-09-05 |
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Effective date of registration: 20200416 Address after: 100130 Zhaofeng Town, Shunyi District, Beijing Zhaofeng industrial base Tongxin Road No. 1 Applicant after: BAIC GROUP ORV Co.,Ltd. Address before: 101300, 99, Shuanghe Avenue, Renhe Town, Beijing, Shunyi District Applicant before: BEIJING AUTOMOBILE RESEARCH GENERAL INSTITUTE Co.,Ltd. |
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