CN116517997A - Rubber disc spring device - Google Patents
Rubber disc spring device Download PDFInfo
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- CN116517997A CN116517997A CN202310624649.XA CN202310624649A CN116517997A CN 116517997 A CN116517997 A CN 116517997A CN 202310624649 A CN202310624649 A CN 202310624649A CN 116517997 A CN116517997 A CN 116517997A
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- Prior art keywords
- cone
- rubber
- layers
- ring
- connecting column
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- 230000035939 shock Effects 0.000 claims abstract description 49
- 238000002955 isolation Methods 0.000 claims abstract description 40
- 238000009413 insulation Methods 0.000 claims abstract description 23
- 238000013016 damping Methods 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 239000000463 material Substances 0.000 description 11
- 238000005452 bending Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
- F16F3/087—Units comprising several springs made of plastics or the like material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Springs (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a rubber disc spring device, belongs to the technical field of vibration isolation and vibration isolation, and aims to solve the problems that an existing vertical vibration isolation device is insufficient in bearing capacity and limited in vibration isolation effect. Comprises an upper bottom plate, a plurality of middle vibration isolating layers and a lower bottom plate which are arranged from top to bottom; the middle shock isolation layer comprises a center connecting column, the periphery of an inner wedge block and the inner Zhou Jun of an outer wedge ring are conical surfaces with small diameter ends facing downwards, the inner wedge block, a conical cylinder shock absorbing sleeve, the outer wedge ring and an outer cylinder are sequentially sleeved on the center connecting column from inside to outside, the center connecting columns of two adjacent middle shock isolation layers are correspondingly connected with the outer cylinder, the inner wedge block and the center connecting column of the middle shock isolation layer at the top end are connected with an upper bottom plate through a circular plate, and the outer wedge ring and the outer cylinder of the middle shock isolation layer at the bottom end are connected with a lower bottom plate through a ring plate; when the cone-shaped damping sleeve works, the cone-shaped damping sleeves of all layers are stressed simultaneously and are in parallel connection, and the rigidity is multiplied along with the number of layers, so that the requirement that the overall bearing capacity is improved by arranging the middle shock insulation layers in parallel connection while the horizontal space is saved is met.
Description
Technical Field
The invention belongs to the technical field of vibration isolation and vibration isolation, and particularly relates to a rubber disc spring device.
Background
In the design and construction process of the building, a part of the building is difficult to avoid being disturbed by unfavorable vibration such as peripheral rail transit, equipment and the like, and a large number of actual measurements show that the unfavorable vibration is mainly vertical vibration. In this case, it is often necessary to adopt a vibration isolation technique to reduce the adverse effect of vertical vibration on the building structure, and it is common practice to disconnect the upper structure from the foundation, and by providing vibration isolation devices between the upper structure and the foundation, the vertical frequency of the upper structure is changed to be away from the excellent frequency of external vibration with reasonable structural rigidity and damping parameters, so as to reduce the adverse effect caused by resonance.
The vibration isolation mounts of the current mainstream mainly comprise the following categories:
air springs are vibration isolation mounts which have the problem of low load carrying capacity, are often used in equipment or in low and low houses with special requirements, and in addition, such devices require regular maintenance and are costly.
The thick meat type laminated rubber vibration isolation support is characterized in that the vertical rigidity of the support is reduced by increasing the thickness of a rubber layer on the basis of a common laminated rubber vibration isolation support, if the device is required to realize a good vibration isolation effect, the rubber layer is required to be made very thick, the whole device is very heavy, and the lateral resistance and torsional stability of the device can be reduced by the excessively thick rubber layer.
The spiral spring vibration isolation support can realize vertical vibration control more ideally through vertical deformation of the spring, but the horizontal load resistance of the device is poor, so that the support has non-negligible potential safety hazards when facing earthquake and strong wind loads, in addition, the spiral spring is in a structural form, so that the filling rate of the unit volume of the spiral spring is low, and the geometric dimension of the whole device is larger.
The disc spring type vibration isolation support realizes vertical vibration isolation by utilizing the deformability of the disc spring. When the upper structure quality is lighter, dish spring class support can realize better vibration isolation effect, but when upper portion load increases, single dish spring bearing capacity is limited, often arranges a plurality of dish springs coincide, and the friction between the different dish springs this moment can show the dynamic stiffness of increase device when slightly vibrating, reduces the holistic vibration isolation effect of device.
Disclosure of Invention
The invention aims to provide a rubber disc spring device to solve the problems that an existing vertical vibration isolation device is insufficient in bearing capacity and limited in vibration isolation effect. The technical scheme adopted by the invention is as follows:
a rubber disc spring device comprises an upper bottom plate, a plurality of middle vibration isolation layers and a lower bottom plate, wherein the upper bottom plate, the middle vibration isolation layers and the lower bottom plate are arranged from top to bottom;
the middle shock insulation layer comprises an inner wedge block, a cone cylinder shock absorption sleeve, an outer wedge ring, an outer cylinder and a central connecting column, the periphery of the inner wedge block and the inner Zhou Jun of the outer wedge ring are conical surfaces with small diameter ends facing downwards, the inner wedge block, the cone cylinder shock absorption sleeve, the outer wedge ring and the outer cylinder are sequentially sleeved on the central connecting column from inside to outside, the upper end of the middle shock insulation layer is flush, and the lower end of the middle shock insulation layer is flush;
the outer cylinders of the two adjacent middle shock insulation layers are connected through the annular cushion, the center connecting column is connected through the circular cushion, the inner wedge blocks and the center connecting column of the middle shock insulation layers at the top end are connected with the upper bottom plate through the circular plate, and the outer wedge rings and the outer cylinders of the middle shock insulation layers at the bottom end are connected with the lower bottom plate through the annular plate.
Further, the cone damping sleeve is a member formed by sequentially sleeving a plurality of layers of rubber cones.
Further, a metal cone is arranged between any two layers of rubber cones.
Further, the rubber cone and the metal cone, the rubber cone and the outer wedge ring, and the rubber cone and the inner wedge are sequentially bonded through high-temperature vulcanization.
Further, the upper bottom plate, the lower bottom plate, the inner wedge block, the outer wedge ring, the outer cylinder, the central connecting column, the ring pad, the round pad, the circular plate and the ring plate are all metal components.
Further, the number of the middle shock insulation layers is three.
Compared with the prior art, the invention has the beneficial effects that:
1. the upper bottom plate, the circular plate, the inner wedge block and the central connecting column are used as force applying components, the outer wedge ring, the outer cylinder, the annular plate and the lower bottom plate are used as force bearing components, when the shock absorbing device works, the cone shock absorbing sleeves of all layers are stressed simultaneously and are in parallel connection, the rigidity is multiplied along with the number of layers, so that the requirement that the integral bearing capacity is improved when the middle shock insulating layers of all layers are placed in parallel while the horizontal space is saved is met, the middle shock insulating layers are uniform in form, and the number of layers of the middle shock insulating layers which are overlapped in parallel can be determined according to the bearing capacity requirement of the upper part of a building structure so as to obtain the shock insulating device with different bearing capacities. When the upper load is lower, a single middle shock isolation layer can be arranged, and as the upper load increases, multiple middle shock isolation layers can be arranged. When the vibration is directed against rail transit, the vibration-proof support can achieve a stronger control effect than a disc spring vibration-proof support. The device is arranged at the foundation of a structure or equipment with vibration control requirements, two ends of the device are respectively connected with the upper part and the foundation, and the device is mainly composed of rigid materials such as metal and flexible materials such as rubber. Compared with the common rubber vertical vibration isolation device, the upper limit of the vertical bearing capacity is obviously higher, the vertical vibration isolation device has stronger vertical deformation capacity under the same condition, and when the vertical rigidity of the same level is realized, the height of the device is lower, the bending stability is stronger, and the space is saved; compared with a vertical vibration isolation device mainly made of metal materials, the device mainly meets the working requirements through deformation of rubber materials, and is more beneficial to isolating high-frequency vibration. Compared with a metal disc spring, the device adopts rubber as a main deformation material, the elastic modulus of the device is far lower than that of metal, and the device has less influence of high-order resonance when facing high-frequency vibration.
2. The invention may be used for, but is not limited to, vertical vibration control of buildings and the like. The rigidity of the invention can be adjusted by adjusting and adjusting the cone surface angles of the inner wedge block, the outer wedge ring and the cone damping sleeve, the types of rubber cone materials, the horizontal thickness and the vertical height of the rubber cone and the number of the shock insulation layers in each layer connected in parallel according to the upper load, the vibration isolation requirement and the like.
Drawings
FIG. 1 is a schematic cut-away view of the present invention;
FIG. 2 is an isometric view of the present invention;
FIG. 3 is a schematic cross-sectional view of a mid-spacer layer;
FIG. 4 is a schematic cut-away view of a cone damping sleeve.
In the figure: 1-upper bottom plate, 2-circular plate, 3-middle shock insulation layer, 31-center connecting column, 32-inner wedge block, 33-cone damping sleeve, 331-rubber cone, 332-metal cone, 34-outer wedge ring, 35-outer cylinder, 4-circular pad, 5-ring pad, 6-ring plate and 7-lower bottom plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention is described below by means of specific embodiments shown in the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
The connection mentioned in the invention is divided into fixed connection and detachable connection, wherein the fixed connection is a conventional fixed connection mode such as folding connection, rivet connection, bonding connection, welding connection and the like, the detachable connection comprises a conventional detachable mode such as bolt connection, buckle connection, pin connection, hinge connection and the like, and when a specific connection mode is not limited, at least one connection mode can be found in the conventional connection mode by default to realize the function, and the person skilled in the art can select the function according to the needs. For example: the fixed connection is welded connection, and the detachable connection is bolted connection.
The present invention will be described in further detail below with reference to the accompanying drawings, the following examples being illustrative of the present invention and the present invention is not limited to the following examples.
Examples: as shown in fig. 1-4, a rubber disc spring device comprises an upper bottom plate 1, a plurality of middle shock isolation layers 3 and a lower bottom plate 7 which are arranged from top to bottom;
the middle shock insulation layer 3 comprises an inner wedge block 32, a cone cylinder shock absorption sleeve 33, an outer wedge ring 34, an outer cylinder 35 and a central connecting column 31, the periphery of the inner wedge block 32 and an inner Zhou Jun of the outer wedge ring 34 are conical surfaces with small diameter ends facing downwards, the inner wedge block 32, the cone cylinder shock absorption sleeve 33, the outer wedge ring 34 and the outer cylinder 35 are sequentially sleeved on the central connecting column 31 from inside to outside, the upper end of the middle shock insulation layer 3 is flush, and the lower end is flush;
the outer cylinders 35 of the adjacent two middle shock insulation layers 3 are connected through the annular cushion 5, the center connecting columns 31 are connected through the circular cushion 4, the inner wedge blocks 32 and the center connecting columns 31 of the middle shock insulation layers 3 positioned at the top end are connected with the upper base plate 1 through the circular plate 2, and the outer wedge rings 34 and the outer cylinders 35 of the middle shock insulation layers 3 positioned at the bottom end are connected with the lower base plate 7 through the annular plate 6.
The cone damping sleeve 33 is a member of sequentially sleeving the multi-layer rubber cone 331.
A metal cone 332 is arranged between any two layers of rubber cones 331.
The rubber cone 331 and the metal cone 332, the rubber cone 331 and the outer wedge ring 34, and the rubber cone 331 and the inner wedge 32 are bonded in sequence through high-temperature vulcanization.
The upper base plate 1, the lower base plate 7, the inner wedge 32, the outer wedge ring 34, the outer cylinder 35, the center connecting column 31, the ring pad 5, the round pad 4, the circular plate 2 and the ring plate 6 are all metal components. The adjacent metal components are connected through welding or bolting.
The number of the middle vibration isolation layers 3 is three.
The upper base plate 1, the circular plate 2, the inner wedge block 32 and the central connecting column 31 are used as force applying components, the outer wedge ring 34, the outer cylinder 35, the ring plate 6 and the lower base plate 7 are used as force bearing components, when the shock absorbing sleeve is in parallel connection, the cone cylinder shock absorbing sleeves 33 of all layers are stressed at the same time, the rigidity is multiplied along with the number of layers, so that the requirement of improving the overall bearing capacity by arranging the middle shock insulating layers 3 in parallel in each layer while saving horizontal space is met, the forms of the middle shock insulating layers 3 are uniform, and the number of layers of the middle shock insulating layers 3 which are overlapped in parallel can be determined according to the bearing capacity requirement of the upper part of a building structure so as to obtain the shock insulating device with different bearing capacities. When the upper load is low, a single-layered medium seismic layer 3 may be arranged, and as the upper load increases, multiple-layered medium seismic layers 3 may be arranged.
The cone damping sleeve 33 between each inner wedge block 32 and each outer wedge ring 34 is in a compression shearing state, the rigidity of the invention is between pure shearing and pure compression, and the rigidity can be changed by adjusting the cone angles of the inner wedge block 32, the outer wedge rings 34 and the cone damping sleeve 33 according to requirements. The metal cone 332 enhances the bending stiffness of the present invention and enhances stability. The vertical rigidity of the invention has obvious nonlinearity, and the rigidity is continuously increased along with the increase of deformation, so that the vertical stability is excellent, and the instability problem caused by overlarge gravity is avoided.
The invention relates to a rubber disc spring shock insulation device which uses rubber as a main deformation material. When the vibration is directed against rail transit, the vibration-proof support can achieve a stronger control effect than a disc spring vibration-proof support. The device is arranged at the foundation of a structure or equipment with vibration control requirements, two ends of the device are respectively connected with the upper part and the foundation, and the device is mainly composed of rigid materials such as metal and flexible materials such as rubber.
The invention may be used for, but is not limited to, vertical vibration control of buildings and the like. The rigidity of the present invention can be adjusted by adjusting the cone angles of the inner wedge 32, the outer wedge ring 34 and the cone damping sleeve 33, the kind of the material of the rubber cone 331, the horizontal thickness and vertical height of the rubber cone 331, and the number of the middle shock insulation layers 3 in each layer connected in parallel according to the upper load, vibration isolation requirements, etc.
Compared with the common rubber vertical vibration isolation device, the upper limit of the vertical bearing capacity is obviously higher, the vertical vibration isolation device has stronger vertical deformation capacity under the same condition, and when the vertical rigidity of the same level is realized, the height of the device is lower, the bending stability is stronger, and the space is saved; compared with a vertical vibration isolation device mainly made of metal materials, the device mainly meets the working requirements through deformation of rubber materials, and is more beneficial to isolating high-frequency vibration. Compared with a metal disc spring, the device adopts rubber as a main deformation material, the elastic modulus of the device is far lower than that of metal, and the device has less influence of high-order resonance when facing high-frequency vibration.
The above embodiments are only illustrative of the present invention and do not limit the scope thereof, and those skilled in the art may also make modifications to parts thereof without departing from the spirit of the invention.
Claims (6)
1. A rubber dish spring device which characterized in that: comprises an upper bottom plate (1), a plurality of middle vibration isolation layers (3) and a lower bottom plate (7) which are arranged from top to bottom;
the middle shock insulation layer (3) comprises an inner wedge block (32), a cone cylinder shock absorption sleeve (33), an outer wedge ring (34), an outer cylinder (35) and a central connecting column (31), wherein the periphery of the inner wedge block (32) and an inner Zhou Jun of the outer wedge ring (34) are conical surfaces with small diameter ends facing downwards, the inner wedge block (32), the cone cylinder shock absorption sleeve (33), the outer wedge ring (34) and the outer cylinder (35) are sequentially sleeved on the central connecting column (31) from inside to outside, the upper ends of the middle shock insulation layer (3) are flush, and the lower ends of the middle shock insulation layer are flush;
the outer cylinders (35) of the two adjacent middle shock insulation layers (3) are connected through the ring pad (5), the center connecting column (31) is connected through the round pad (4), the inner wedge block (32) of the middle shock insulation layer (3) and the center connecting column (31) at the top end are connected with the upper base plate (1) through the circular plate (2), and the outer wedge ring (34) of the middle shock insulation layer (3) and the outer cylinders (35) at the bottom end are connected with the lower base plate (7) through the ring plate (6).
2. A rubber disc spring apparatus as claimed in claim 1, wherein: the cone damping sleeve (33) is a member formed by sequentially sleeving a plurality of layers of rubber cones (331).
3. A rubber disc spring apparatus as claimed in claim 2, wherein: a metal cone (332) is arranged between any two layers of rubber cones (331).
4. A rubber disc spring apparatus according to claim 3, wherein: the rubber cone (331) and the metal cone (332), the rubber cone (331) and the outer wedge ring (34) and the rubber cone (331) and the inner wedge (32) are sequentially bonded through high-temperature vulcanization.
5. A rubber disc spring apparatus as claimed in claim 1, wherein: the upper bottom plate (1), the lower bottom plate (7), the inner wedge block (32), the outer wedge ring (34), the outer cylinder (35), the central connecting column (31), the ring pad (5), the round pad (4), the circular plate (2) and the ring plate (6) are all metal components.
6. A rubber disc spring device according to any one of claims 1-5, wherein: the number of the middle vibration isolation layers (3) is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310624649.XA CN116517997B (en) | 2023-05-30 | 2023-05-30 | Rubber disc spring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310624649.XA CN116517997B (en) | 2023-05-30 | 2023-05-30 | Rubber disc spring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116517997A true CN116517997A (en) | 2023-08-01 |
| CN116517997B CN116517997B (en) | 2023-09-22 |
Family
ID=87397707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310624649.XA Active CN116517997B (en) | 2023-05-30 | 2023-05-30 | Rubber disc spring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116517997B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3191551A (en) * | 1962-06-06 | 1965-06-29 | Metalastik Ltd | Railway vehicles |
| US5150657A (en) * | 1989-12-29 | 1992-09-29 | Caoutchouc Manufacture Et Plastiques S.A. | Train of railway cars having truncated conical resilient articulation on shared truck between two adjacent cars |
| US20090218740A1 (en) * | 2005-06-21 | 2009-09-03 | Volker Gedenk | Highly elastic leaf spring |
| US20120205845A1 (en) * | 2009-09-03 | 2012-08-16 | Volker Gedenk | Hydraulic Bearing |
| DE102012007709A1 (en) * | 2012-04-19 | 2013-10-24 | Gmt Gummi-Metall-Technik Gmbh | Rubber-metal-cone bearing, particularly for suspension and guidance of axes of rail vehicles, has inner intermediate panel that is folded over inner and adjacent elastomer layer and is pulled at upper end to outside |
| WO2016131688A1 (en) * | 2015-02-17 | 2016-08-25 | Siemens Ag Österreich | Primary spring for a rail vehicle |
| CN206591674U (en) * | 2017-03-02 | 2017-10-27 | 沈阳工业大学 | A kind of diaphragm of rubber lead core three is combined disc spring shock mount |
| US20180290668A1 (en) * | 2015-12-09 | 2018-10-11 | Contitech Luftfedersysteme Gmbh | Rubber-metal spring unit |
-
2023
- 2023-05-30 CN CN202310624649.XA patent/CN116517997B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3191551A (en) * | 1962-06-06 | 1965-06-29 | Metalastik Ltd | Railway vehicles |
| US5150657A (en) * | 1989-12-29 | 1992-09-29 | Caoutchouc Manufacture Et Plastiques S.A. | Train of railway cars having truncated conical resilient articulation on shared truck between two adjacent cars |
| US20090218740A1 (en) * | 2005-06-21 | 2009-09-03 | Volker Gedenk | Highly elastic leaf spring |
| US20120205845A1 (en) * | 2009-09-03 | 2012-08-16 | Volker Gedenk | Hydraulic Bearing |
| DE102012007709A1 (en) * | 2012-04-19 | 2013-10-24 | Gmt Gummi-Metall-Technik Gmbh | Rubber-metal-cone bearing, particularly for suspension and guidance of axes of rail vehicles, has inner intermediate panel that is folded over inner and adjacent elastomer layer and is pulled at upper end to outside |
| WO2016131688A1 (en) * | 2015-02-17 | 2016-08-25 | Siemens Ag Österreich | Primary spring for a rail vehicle |
| US20180290668A1 (en) * | 2015-12-09 | 2018-10-11 | Contitech Luftfedersysteme Gmbh | Rubber-metal spring unit |
| CN206591674U (en) * | 2017-03-02 | 2017-10-27 | 沈阳工业大学 | A kind of diaphragm of rubber lead core three is combined disc spring shock mount |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116517997B (en) | 2023-09-22 |
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