CN116532968A - Multilayer rubber spherical hinge and assembling method thereof - Google Patents
Multilayer rubber spherical hinge and assembling method thereof Download PDFInfo
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- CN116532968A CN116532968A CN202310470690.6A CN202310470690A CN116532968A CN 116532968 A CN116532968 A CN 116532968A CN 202310470690 A CN202310470690 A CN 202310470690A CN 116532968 A CN116532968 A CN 116532968A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000010410 layer Substances 0.000 claims abstract description 148
- 239000002356 single layer Substances 0.000 claims abstract description 145
- 239000002184 metal Substances 0.000 claims abstract description 22
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 abstract description 7
- 125000006850 spacer group Chemical group 0.000 description 12
- 239000000463 material Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0614—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part of the joint being open on two sides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The utility model relates to the technical field of vehicle vibration reduction parts, in particular to a multi-layer rubber spherical hinge and an assembly method thereof. The assembling method of the multilayer rubber spherical hinge comprises the following steps: s1: precompression is carried out on more than two single-layer rubber spherical hinges comprising a metal outer sleeve, a single-layer rubber layer and a metal inner sleeve respectively; s2: designing a press-fitting tool and a press-fitting cylinder; s3: and sequentially press-fitting each pre-compressed single-layer rubber spherical hinge into the press-fitting cylinder to form a multi-layer rubber spherical hinge finished product. The scheme can reduce the precompression difficulty and the vulcanization difficulty of the product and improve the service life of the product.
Description
Technical Field
The utility model relates to the technical field of vehicle vibration reduction parts, in particular to a multilayer rubber spherical hinge and an assembly method thereof.
Background
The rubber spherical hinge is an important damping connecting element and is mainly used for trains, high-speed rails, automobiles, ships or airplanes, when the machine body bears radial, torsion, deflection and other complex load working conditions, the deflection torsion angle and radial load are born through the deformation of the rod end rubber spherical hinge, and the machine body is prevented from turning on one's side during running. The existing rubber spherical hinge generally adopts a single-layer rubber joint form of a metal outer sleeve, a single-layer rubber layer and a metal inner sleeve, the radial rigidity of the single-layer rubber joint is small, only small radial load can be born, and the deflection load resistance and the radial load resistance are poor.
In view of the above problems, the following multi-layer rubber ball joint structure capable of increasing the load capacity of the rubber ball joint has appeared in the prior art:
1. the patent number is 201811168231.8, the patent name is a shock absorption method and structure of a rubber spherical hinge for a wheelless axle bogie, a split type metal partition plate is arranged between a metal inner sleeve and a metal outer sleeve, and a parting surface is arranged at a split position so as to meet the requirements of four rigidities of radial, axial, deflection and torsion. The utility model can improve the radial rigidity of the rubber ball hinge and simultaneously realize extremely small torsional rigidity, the parting surface arranged at the parting position can increase the free surface of the rubber, the stress generated after the rubber is extruded can be greatly reduced, the fatigue resistance life of the rubber is prolonged, and the service life of the rubber ball hinge is prolonged.
2. The utility model patent with the patent number of 201120260433.2 is named as a connecting rod joint for a torsion bar system of a high-speed train, and the connecting rod joint comprises a metal inner sleeve, a metal outer sleeve, an elastic rubber body and a metal spacer sleeve, wherein the elastic rubber body, the metal outer sleeve, the metal inner sleeve and the metal spacer sleeve are integrated through vulcanization, and the connecting rod joint is divided into a multi-layer structure by the metal spacer sleeve. The scheme can enable the deflection torsional rigidity of the rubber ball hinge elastic element to be very low, and can solve the problem that the ball-head type rubber ball hinge product cannot precompress the elastic rubber body.
However, the above-mentioned multi-layer rubber ball joint or multi-layer shock absorbing member patents still have the following problems:
1. rubber has the characteristics of good compression performance and poor tensile performance, and after vulcanization of the rubber spherical hinge is completed, the rubber is usually required to be precompressed so as to ensure the reliability of the product performance; in the prior art, the rubber ball hinge is required to be embedded with the spacer bush in the rubber body, and some spacer bushes are required to be made into multi-petal type, so that the spacer bush is easy to move in the precompression process of the rubber ball hinge and the quality and performance of products are influenced.
2. Gaps are required to be designed at split positions to ensure the movement of the spacer bush, so that a die insert is usually required to be inserted to ensure the gaps, and the die structure is complex, so that the vulcanization difficulty is increased; meanwhile, after the rubber spherical hinge finished product is precompressed, a certain gap still exists at the split part of the multi-split spacer bush, and the fatigue life of the product is seriously influenced.
In summary, how to design a rubber spherical hinge which can not only ensure the load capacity, but also reduce the vulcanization difficulty and ensure the product performance and the fatigue life is a problem to be solved currently and urgently.
Disclosure of Invention
The utility model provides a multilayer rubber spherical hinge and an assembling method thereof, wherein at least two single-layer rubber spherical hinges are pressed together through a press-fit tool to form a multilayer rubber spherical hinge finished product, the multilayer rubber spherical hinge finished product is used for replacing a rubber spherical hinge with a spacer bush in the prior art, so that the vulcanization difficulty can be reduced, the precompression problem is solved, the rubber spherical hinge is prevented from being shifted out in the working process, and the service life of the product and the running stability of a vehicle body are improved.
In order to achieve the above purpose, the present utility model proposes the following technical scheme: an assembling method of a multi-layer rubber spherical hinge comprises the following steps:
s1: precompression is carried out on more than two single-layer rubber spherical hinges comprising a metal outer sleeve, a single-layer rubber layer and a metal inner sleeve respectively;
s2: designing a press-fitting tool and a press-fitting cylinder;
s3: and sequentially press-fitting each pre-compressed single-layer rubber spherical hinge into the press-fitting cylinder to form a multi-layer rubber spherical hinge finished product.
Preferably, the press-fitting tool in the step S2 is cylindrical, and the inner diameter size of the press-fitting tool is matched with the outer diameter size of the outer sleeve of the outermost layer single-layer rubber spherical hinge after precompression; the outer wall of the outer sleeve in the outermost layer single-layer rubber spherical hinge is sleeved in the press-fit tool, and is bonded and pressed with the inner wall of the press-fit tool.
Preferably, the single-layer rubber spherical hinge of the inner layer in the adjacent single-layer rubber spherical hinge is sleeved in the single-layer rubber spherical hinge of the outer layer, and the inner wall of the inner sleeve in the single-layer rubber spherical hinge of the outer layer is bonded and pressed with the outer wall of the outer sleeve in the single-layer rubber spherical hinge of the inner layer.
Preferably, the press-fitting step of the single-layer rubber spherical hinge in the step S3 includes:
s31: the single-layer rubber spherical hinge of the outermost layer is pressed into a press-fit tool from top to bottom by adopting a press-fit cylinder;
s32: the second layer single-layer rubber spherical hinge is pressed into the outermost layer rubber spherical hinge in an interference fit manner from top to bottom by adopting a press-fit cylinder;
sequentially pressing each layer of single-layer rubber spherical hinge into the previous layer of single-layer rubber spherical hinge according to the method in S32;
s3n: pressing the innermost layer rubber spherical hinge into the n-1 layer rubber spherical hinge in an interference fit manner from top to bottom; and (5) assembling the multi-layer rubber spherical hinge finished product.
Preferably, when each layer of single-layer rubber spherical hinge is pressed into the previous layer of single-layer rubber spherical hinge in an interference fit mode, the interference force is larger than the axial bearing force of the plurality of layers of rubber spherical hinges.
Preferably, the thickness of the rubber body in each layer of single-layer rubber spherical hinge is designed according to the total rigidity of the multi-layer rubber spherical hinge, and the rubber body in each layer of single-layer rubber spherical hinge is strained.
The multi-layer rubber spherical hinge is assembled by adopting the method and comprises more than two single-layer rubber spherical hinges which are sleeved and pressed, wherein the single-layer rubber spherical hinge comprises an outer sleeve, an inner sleeve and a rubber body vulcanized between the outer sleeve and the inner sleeve; the outer diameter of the outer sleeve of the inner layer single-layer rubber spherical hinge in the adjacent single-layer rubber spherical hinge is matched with the inner diameter of the inner sleeve of the outer layer single-layer rubber spherical hinge, and the outer sleeve and the inner sleeve are adhered and pressed.
Preferably, the thickness of the outer sleeve of the inner layer single-layer rubber spherical hinge in the adjacent single-layer rubber spherical hinge is smaller than that of the inner sleeve of the outer layer single-layer rubber spherical hinge.
Preferably, the outer wall of the inner sleeve of the inner layer single-layer rubber spherical hinge and the inner wall of the outer sleeve of the outer layer single-layer rubber spherical hinge in the adjacent single-layer rubber spherical hinges are of arc-shaped surface structures.
Preferably, in the adjacent single-layer rubber spherical hinge, the outer wall of the inner sleeve of the inner-layer single-layer rubber spherical hinge protrudes outwards to form a first cambered surface, and the inner wall of the outer sleeve of the outer-layer single-layer rubber spherical hinge is recessed outwards to form a second cambered surface; the curvature radius of the convex top A of the cambered surface I is larger than that of the concave bottom B of the cambered surface II.
The utility model has the beneficial effects that:
1. compared with the traditional multi-layer rubber spherical hinge with the metal spacer added into the rubber body, the utility model does not need to design a gap between the metal spacer and the spacer, can simplify the structure of the die, reduce the vulcanization difficulty of the product and improve the fatigue life of the product.
2. The single-layer rubber spherical hinge is pressed together to form a multi-layer rubber spherical hinge finished product after being pre-compressed independently, so that the problem of high pre-compression difficulty of the traditional multi-layer rubber spherical hinge can be solved, and the processing efficiency of the product is improved.
3. According to the utility model, the adjacent rubber spherical hinges are pressed by interference fit, so that the rubber spherical hinges can be prevented from being shifted out in the use process by the design of the interference magnitude, the assembly stability and the use performance of the rubber spherical hinges are improved, and the running stability of a vehicle body is improved.
Drawings
Fig. 1 is a schematic structural view of a multi-layered rubber ball hinge according to an embodiment of the present utility model.
Fig. 2 is a schematic structural view of an outer rubber ball joint according to an embodiment of the present utility model.
Fig. 3 is a schematic structural view of an inner layer rubber ball joint according to an embodiment of the present utility model.
Fig. 4 is an assembly schematic diagram of an outer layer rubber ball joint according to an embodiment of the utility model.
Fig. 5 is an assembly schematic diagram of an inner layer rubber ball joint according to an embodiment of the utility model.
Fig. 6 is a schematic structural view of a multi-layered rubber ball hinge according to a second embodiment of the present utility model.
Reference numerals: 1. a jacket; 1a, first coat; 1b, a second coat; 2. a rubber body; 2a, a first rubber body; 2b, a second rubber body; 3. an inner sleeve; 3a, a first inner sleeve; 3b, a second inner sleeve; 4. pressing and mounting a tool; 5. the inner wall of the press-fitting tool; 6. pressing the barrel; 7. an outermost layer single-layer rubber spherical hinge; 8. a cambered surface I; 9. and a cambered surface II.
Detailed Description
The present utility model will be further described in detail with reference to fig. 1 to 6 and the specific embodiments thereof in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limiting the utility model.
Example 1
An assembling method of a multi-layer rubber spherical hinge comprises the following steps:
s1: precompression is carried out on more than two single-layer rubber spherical hinges comprising a metal outer sleeve, a single-layer rubber layer and a metal inner sleeve respectively; as shown in fig. 1, the single-layer rubber ball joint comprises an outer sleeve 1, an inner sleeve 3 and a rubber body 2 vulcanized between the outer sleeve 1 and the inner sleeve 3.
S2: designing a press-fitting tool 4 and a press-fitting cylinder 6; as shown in fig. 4, the press-fitting tool 4 is cylindrical, and the inner diameter size of the press-fitting tool 4 is matched with the outer diameter size of the outer sleeve 1 of the outermost layer single-layer rubber spherical hinge 7 after precompression; in the press-fitting process of the single-layer rubber spherical hinge, the outer sleeve 1 and the rubber body 2 are deformable, in the press-fitting process, the rubber body 2 is extruded, the outer sleeve 1 is subjected to permanent deformation after yielding, the inner diameter size of the press-fitting tool 4 is matched with the outer diameter size of the outer sleeve 1 in the outermost-layer single-layer rubber spherical hinge 7 after precompression, the fact that the outermost-layer single-layer rubber spherical hinge 7 can be pressed into the press-fitting tool 4 can be guaranteed, and the press-fitting stability can be guaranteed; as shown in fig. 5, after the outermost layer single-layer rubber spherical hinge 7 is assembled, the outermost layer single-layer rubber spherical hinge 7 is sleeved in the press-fit tool 4, and the outer wall of the outer sleeve 1 in the outermost layer single-layer rubber spherical hinge 7 is attached to and pressed against the inner wall 5 of the press-fit tool.
S3: each pre-compressed single-layer rubber spherical hinge is sequentially pressed in the press-fit cylinder 6 through the press-fit cylinder 6 to form a multi-layer rubber spherical hinge finished product.
As shown in fig. 1-3, the single-layer rubber spherical hinge of the inner layer in the adjacent single-layer rubber spherical hinge is shown as M, the single-layer rubber spherical hinge of the outer layer is shown as N, when the single-layer rubber spherical hinge of the inner layer in the adjacent single-layer rubber spherical hinge is sleeved in the single-layer rubber spherical hinge of the outer layer, and the inner wall of the inner sleeve 3 in the single-layer rubber spherical hinge of the outer layer is bonded and pressed with the outer wall of the outer sleeve 1 in the single-layer rubber spherical hinge of the inner layer.
The press-fitting step of the single-layer rubber spherical hinge comprises the following steps:
s31: the press-mounting cylinder 6 is adopted to press-mount the outermost layer single-layer rubber spherical hinge 7 into the press-mounting tool 4 from top to bottom;
s32: the second layer single-layer rubber spherical hinge is pressed into the outermost layer rubber spherical hinge from top to bottom by adopting a press-fit cylinder 6 in an interference fit manner; the interference force is larger than the axial bearing force of the multi-layer rubber spherical hinge, so that the multi-layer rubber spherical hinge cannot be fleed out in the use process, and the assembly stability and the use performance of the multi-layer rubber spherical hinge are improved;
sequentially pressing each layer of single-layer rubber spherical hinge into the previous layer of single-layer rubber spherical hinge according to the method in S32;
s3n: pressing the innermost layer rubber spherical hinge into the n-1 layer rubber spherical hinge in an interference fit manner from top to bottom; and (5) assembling the multi-layer rubber spherical hinge finished product.
As shown in fig. 2 and 3, in the adjacent single-layer rubber spherical hinge, the single-layer rubber spherical hinge of the outer layer comprises an outer sleeve 1a, a rubber body 2a and an inner sleeve 3a, the single-layer rubber spherical hinge of the inner layer comprises an outer sleeve second 1b, a rubber body second 2b and an inner sleeve second 3b, wherein the inner sleeve first 3a is made of harder materials, preferably 45 steel, and the outer sleeve second 1b is made of softer materials, preferably 20 steel, so as to ensure the stability of interference press fit between the single-layer rubber spherical hinge of the outer layer and the single-layer rubber spherical hinge of the inner layer; the materials of the inner sleeve 3a and the outer sleeve 1b can be adjusted by a person skilled in the art according to actual conditions.
The embodiment comprises two layers of single-layer rubber ball joints, wherein the outermost layer of single-layer rubber ball joint 7 is the single-layer rubber ball joint of the outer layer in the adjacent single-layer rubber ball joints, and the second layer of single-layer rubber ball joint is the single-layer rubber ball joint of the inner layer in the adjacent single-layer rubber ball joints; three or more layers of single-layer rubber ball joints can also be provided by those skilled in the art.
The assembly process of the outermost layer single-layer rubber ball joint 7 (outer layer single-layer rubber ball joint) is as follows: as shown in fig. 4, the outermost layer single-layer rubber spherical hinge 7 is arranged above the press-fitting tool 4, and the outermost layer single-layer rubber spherical hinge 7 and the press-fitting tool 4 are ensured to be coaxial as far as possible; then the press-fitting cylinder 6 is used for press-fitting the outermost layer single-layer rubber spherical hinge 7 into the press-fitting tool 4 from top to bottom; at this time, the outer wall of the first outer sleeve 1a is attached to and pressed against the inner wall 5 of the press-fit tool.
The assembly process of the second layer single-layer rubber spherical hinge (the inner layer single-layer rubber spherical hinge) comprises the following steps: as shown in fig. 5, the second single-layer rubber ball joint is arranged above the outermost single-layer rubber ball joint 7 and is ensured to be coaxial with the outermost single-layer rubber ball joint 7 as far as possible; then the second layer single-layer rubber spherical hinge is pressed into the outermost layer single-layer rubber spherical hinge 7 from top to bottom by using the pressing cylinder 6; at this time, the outer wall of the second outer sleeve 1b is attached to and pressed against the inner wall of the first inner sleeve 3 a.
The multilayer rubber spherical hinge is assembled by adopting the method, and comprises more than two single-layer rubber spherical hinges which are sleeved and pressed, wherein the embodiment comprises two single-layer rubber spherical hinges; wherein the single-layer rubber spherical hinge comprises an outer sleeve 1, an inner sleeve 3 and a rubber body 2 vulcanized between the outer sleeve 1 and the inner sleeve 3; the outer diameter of the outer sleeve 1 of the inner layer single-layer rubber spherical hinge in the adjacent single-layer rubber spherical hinge is matched with the inner diameter of the inner sleeve 3 of the outer layer single-layer rubber spherical hinge, and the outer sleeve and the inner sleeve are adhered and pressed; the thickness of the rubber body 2 in each layer of single-layer rubber spherical hinge is designed according to the total rigidity of the multi-layer rubber spherical hinge, and the strain of the rubber body 2 and the like in each layer of single-layer rubber spherical hinge is improved so as to improve the stable deformation of the multi-layer rubber spherical hinge; the thickness of the outer sleeve 1 of the inner layer single-layer rubber spherical hinge in the adjacent single-layer rubber spherical hinge is smaller than that of the inner sleeve 3 of the outer layer single-layer rubber spherical hinge, so that the overall rigidity of the multi-layer rubber spherical hinge and the stability of interference press fitting between the single-layer rubber spherical hinge of the outer layer and the single-layer rubber spherical hinge of the inner layer in the adjacent single-layer rubber spherical hinge are improved.
Example two
As shown in fig. 6, the difference between the present embodiment and the embodiment is that the inner sleeve outer wall of the inner layer single-layer rubber ball joint and the outer sleeve inner wall of the outer layer single-layer rubber ball joint in the adjacent single-layer rubber ball joints are both arc-shaped structures, that is, the inner wall of the outer sleeve 1a and the outer wall of the inner sleeve 3b are both arc-shaped structures, so that the strain capacity between the rubber body 1 and the rubber body 2b can be improved, and the fatigue life of the multi-layer rubber ball joint can be prolonged.
In the adjacent single-layer rubber spherical hinge, the outer wall of an inner sleeve 3 of the inner layer single-layer rubber spherical hinge protrudes outwards to form a first cambered surface 8, and the inner wall of an outer sleeve 1 of the outer layer single-layer rubber spherical hinge is recessed outwards to form a second cambered surface 9; the curvature radius of the convex top A in the first cambered surface 8 is larger than that of the concave bottom B in the second cambered surface 9, so that the second inner sleeve 3B is thicker, and the installation stability and rigidity of the multi-layer rubber spherical hinge can be improved; meanwhile, the first rubber body 2a is thicker, so that the rigidity of the outer layer single-layer rubber spherical hinge can be increased, and the bearing capacity of the multi-layer rubber spherical hinge is improved.
While embodiments of the present utility model have been illustrated and described above, it will be appreciated that the above described embodiments are illustrative and should not be construed as limiting the utility model. Variations, modifications, alternatives and variations of the above-described embodiments may be made by those of ordinary skill in the art within the scope of the present utility model.
The above embodiments of the present utility model do not limit the scope of the present utility model. Any other corresponding changes and modifications made in accordance with the technical idea of the present utility model shall be included in the scope of the claims of the present utility model.
Claims (10)
1. The assembling method of the multilayer rubber spherical hinge is characterized by comprising the following steps of:
s1: precompression is carried out on more than two single-layer rubber spherical hinges comprising a metal outer sleeve, a single-layer rubber layer and a metal inner sleeve respectively;
s2: designing a press-fitting tool (4) and a press-fitting cylinder (6);
s3: each precompressed single-layer rubber spherical hinge is sequentially pressed in the press-fit cylinder (6) through the press-fit cylinder (6) to form a multi-layer rubber spherical hinge finished product.
2. The method for assembling the multilayer rubber spherical hinge according to claim 1, wherein the press-fitting tool (4) in the step S2 is cylindrical, and the inner diameter size of the press-fitting tool (4) is matched with the outer diameter size of the outer sleeve (1) in the outermost layer single-layer rubber spherical hinge (7) after pre-compression; the outermost layer single-layer rubber spherical hinge (7) is sleeved in the press-fit tool (4), and the outer wall of the outer sleeve (1) in the outermost layer single-layer rubber spherical hinge (7) is attached to and pressed against the inner wall (5) of the press-fit tool.
3. The method for assembling the multi-layer rubber spherical hinge according to claim 2, wherein the single-layer rubber spherical hinge of the inner layer in the adjacent single-layer rubber spherical hinge is sleeved in the single-layer rubber spherical hinge of the outer layer, and the inner wall of the inner sleeve (3) in the single-layer rubber spherical hinge of the outer layer is bonded and pressed with the outer wall of the outer sleeve (1) in the single-layer rubber spherical hinge of the inner layer.
4. The method of assembling a multi-layered rubber ball joint according to claim 3, wherein the press-fitting step of the single-layered rubber ball joint in step S3 comprises:
s31: the outermost layer single-layer rubber spherical hinge (7) is pressed into the press-fit tool (4) from top to bottom by adopting the press-fit cylinder (6);
s32: a press-fit cylinder (6) is adopted to press-fit the second layer of single-layer rubber spherical hinge into the outermost layer of rubber spherical hinge in an interference fit manner from top to bottom;
sequentially pressing each layer of single-layer rubber spherical hinge into the previous layer of single-layer rubber spherical hinge according to the method in S32;
s3n: pressing the innermost layer rubber spherical hinge into the n-1 layer rubber spherical hinge in an interference fit manner from top to bottom; and (5) assembling the multi-layer rubber spherical hinge finished product.
5. The method for assembling a multi-layer rubber ball joint according to claim 4, wherein when each layer of single-layer rubber ball joint is pressed into the previous layer of single-layer rubber ball joint in an interference fit manner, the interference force is larger than the axial bearing force of the multi-layer rubber ball joint.
6. The method for assembling a multi-layer rubber ball joint according to claim 5, wherein the thickness of the rubber body (2) in each layer of single-layer rubber ball joint is designed according to the total rigidity of the multi-layer rubber ball joint, and the strain of the rubber body (2) in each layer of single-layer rubber ball joint is equal.
7. A multilayer rubber spherical hinge assembled by the method of any one of claims 1-6, characterized by comprising more than two single-layer rubber spherical hinges sleeved and pressed, wherein the single-layer rubber spherical hinge comprises an outer sleeve (1), an inner sleeve (3) and a rubber body (2) vulcanized between the outer sleeve (1) and the inner sleeve (3); the outer diameter of the outer sleeve (1) of the inner layer single-layer rubber spherical hinge in the adjacent single-layer rubber spherical hinge is matched with the inner diameter of the inner sleeve (3) of the outer layer single-layer rubber spherical hinge, and the outer sleeve and the inner sleeve are bonded and pressed.
8. The multi-layer rubber ball joint according to claim 7, wherein the thickness of the outer sleeve (1) of the inner layer single-layer rubber ball joint in the adjacent single-layer rubber ball joints is smaller than the thickness of the inner sleeve (3) of the outer layer single-layer rubber ball joint.
9. The multi-layer rubber spherical hinge according to claim 8, wherein the outer wall of an inner sleeve (3) of the inner layer single-layer rubber spherical hinge and the inner wall of an outer sleeve (1) of the outer layer single-layer rubber spherical hinge in the adjacent single-layer rubber spherical hinge are of arc-shaped surface structures.
10. The multi-layer rubber spherical hinge according to claim 9, wherein in the adjacent single-layer rubber spherical hinge, the outer wall of an inner sleeve (3) of the inner layer single-layer rubber spherical hinge protrudes outwards to form a first cambered surface (8), and the inner wall of an outer sleeve (1) of the outer layer single-layer rubber spherical hinge is recessed outwards to form a second cambered surface (9); the curvature radius of the convex top A in the first cambered surface (8) is larger than that of the concave bottom B in the second cambered surface (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310470690.6A CN116532968A (en) | 2023-04-27 | 2023-04-27 | Multilayer rubber spherical hinge and assembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310470690.6A CN116532968A (en) | 2023-04-27 | 2023-04-27 | Multilayer rubber spherical hinge and assembling method thereof |
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| CN116532968A true CN116532968A (en) | 2023-08-04 |
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|---|---|---|---|
| CN202310470690.6A Pending CN116532968A (en) | 2023-04-27 | 2023-04-27 | Multilayer rubber spherical hinge and assembling method thereof |
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