CN115217876A - Double-spherical traction rubber joint and manufacturing method thereof - Google Patents

Double-spherical traction rubber joint and manufacturing method thereof Download PDF

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Publication number
CN115217876A
CN115217876A CN202210838963.3A CN202210838963A CN115217876A CN 115217876 A CN115217876 A CN 115217876A CN 202210838963 A CN202210838963 A CN 202210838963A CN 115217876 A CN115217876 A CN 115217876A
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CN
China
Prior art keywords
rubber
spherical
rubber body
double
mandrel
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210838963.3A
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Chinese (zh)
Inventor
程瑞国
马志强
李松志
邢鹏飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Tianyuan Rubber Co ltd
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Zhengzhou Tianyuan Rubber Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhengzhou Tianyuan Rubber Co ltd filed Critical Zhengzhou Tianyuan Rubber Co ltd
Priority to CN202210838963.3A priority Critical patent/CN115217876A/en
Publication of CN115217876A publication Critical patent/CN115217876A/en
Pending legal-status Critical Current

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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
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
    • F16F1/3835—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type characterised by the sleeve of elastic material, e.g. having indentations or made of materials of different hardness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/50—Other details
    • 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
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
    • F16F1/3842—Method of assembly, production or treatment; Mounting thereof
    • F16F1/3856—Vulcanisation or gluing of interface between rigid and elastic sleeves
    • 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
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
    • F16F1/3863—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type characterised by the rigid sleeves or pin, e.g. of non-circular cross-section
    • 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
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
    • F16F1/393—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type with spherical or conical sleeves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Springs (AREA)

Abstract

The invention relates to a double-spherical traction rubber joint and a manufacturing method thereof, and the double-spherical traction rubber joint comprises a metal outer sleeve and a mandrel, wherein an outer rubber layer is arranged outside the metal outer sleeve, the mandrel is arranged inside the metal outer sleeve, through holes are formed inside the left side and the right side of the mandrel, an inner rubber body is arranged between the metal outer sleeve and the mandrel, an anti-bulging cavity is arranged outside the inner rubber body, a rigid ring is arranged in front of the outer part of the inner rubber body, and tensile strain bearing rings are arranged on the left side and the right side of the rigid ring; the invention has the advantages of simple structure, reduced tensile strain, effective avoidance of rubber bulge, and realization of high radial rigidity and low deflection rigidity.

Description

Double-spherical traction rubber joint and manufacturing method thereof
Technical Field
The invention belongs to the technical field of traction rubber joints, and particularly relates to a double-spherical traction rubber joint and a manufacturing method thereof.
Background
The traction rubber joint is used for a central traction device of a bogie, is arranged in holes at two ends of a traction rod, plays a role in transmitting traction force, is an important elastic original piece of the bogie, consists of a metal mandrel, an outer sleeve and a rubber elastic body, is formed into a whole through vulcanization, and is pre-compressed to a certain extent through an outer sleeve diameter integral reduction process, so that the service life of the rubber joint is prolonged; therefore, it is very necessary to provide a double-spherical traction rubber joint which has a simple structure, reduces the tensile strain, effectively avoids rubber bulging, and realizes high radial stiffness and low deflection stiffness, and a manufacturing method thereof.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a double-spherical-surface traction rubber joint which is simple in structure, reduces tensile strain, effectively avoids rubber bulge and realizes high radial rigidity and low deflection rigidity and a manufacturing method thereof.
The purpose of the invention is realized as follows: the utility model provides a two spherical traction rubber joints, it includes metal overcoat and dabber, metal overcoat outside be provided with outer rubber layer, the inside dabber that is provided with of metal overcoat, the inside through-hole that all is provided with of dabber left and right sides, metal overcoat and dabber between be provided with the interior rubber body, interior rubber body outside be provided with and prevent bulging cavity, the external front rigidity ring that is provided with of interior rubber, the rigidity ring left and right sides all be provided with the tensile strain and hold the ring.
The inner rubber body comprises an inner spherical surface and an outer spherical surface, the inner spherical surface is attached to the outer spherical surface section of the mandrel, and the outer spherical surface is attached to the inner spherical surface section of the metal jacket.
The inner spherical surface comprises an inner arc-shaped end surface and an inner connecting end surface, and the outer spherical surface comprises an outer arc-shaped end surface and an outer connecting end surface.
The radian of the inner arc-shaped end face is 2 times of that of the outer arc-shaped end face, so that the fitting degree of the inner spherical surface and the outer spherical surface with the mandrel and the metal outer sleeve is improved.
Interior rubber body both sides all through corresponding side laminating terminal surface and metal coat inner wall connection, side laminating terminal surface from the top down be provided with a plurality of laminating cavity.
The side laminating terminal surface inboard all be provided with the nearly rubber terminal surface of pre-pasting of fan-shaped structure, the nearly rubber terminal surface of pre-pasting include with the side straight terminal surface of side laminating terminal surface connection and with interior rubber body coupling's first laminating cambered surface end, second laminating cambered surface end.
The metal outer sleeve is made of manganese steel materials, the mandrel is made of carbon steel materials, and the outer rubber layer and the inner rubber body are made of natural rubber materials.
The inner rubber body, the metal outer sleeve and the mandrel are combined by hot vulcanization, and the bonding strength is more than or equal to 4MPa.
The manufacturing method of the double-spherical traction rubber joint comprises the following steps:
step 1: processing the outer side surface of the middle part of the mandrel and the inner side surface of the middle part of the metal jacket into spherical surfaces;
step 2: vulcanizing and bonding the inner rubber body between the mandrel and the double spherical surfaces of the metal outer sleeve to form a whole through vulcanization;
and step 3: then the inner rubber body is pre-compressed to a certain extent by the overall diameter reduction process of the metal outer sleeve, so that the radial pre-compression manufacturing and forming are realized;
and 4, step 4: and (4) vulcanizing and combining the outer rubber layer and the metal outer sleeve to finish the processing and manufacturing of the rubber joint.
The invention has the beneficial effects that: the invention is a double-spherical traction rubber joint, in use, the outer rubber layer of the invention provides certain protective capacity for the metal jacket, the tensile strain bearing ring and the rigid ring of the invention can basically eliminate the tensile strain of the rubber joint in the traction direction, and the rigid ring can provide the function of limiting protection when the inner rubber body continuously deforms in the radial direction, so as to improve the radial rigidity of the inner rubber body; the anti-bulging cavity can reduce the volume of the inner rubber body, increase the free surface of the inner rubber body, effectively solve the bulging phenomenon of the inner rubber body and reduce the stress of the inner rubber body; the rubber joint provided by the invention has the advantages that after the inner rubber body, the metal outer sleeve and the mandrel are vulcanized into a whole, the metal outer sleeve is extruded to be contracted, so that the inner rubber body is compressed, the inner rubber body is in a pre-compression state before use, the pre-compression amount is greater than the tensile stress generated in the use process of the rubber joint, the comprehensive stress of the inner rubber body does not generate the tensile stress, and the service life of the rubber joint is prolonged; the invention has the advantages of simple structure, reduced tensile strain, effective avoidance of rubber bulge, and realization of high radial rigidity and low deflection rigidity.
Drawings
FIG. 1 is a front view of a dual spherical traction rubber joint of the present invention.
Fig. 2 is a schematic diagram I of the internal structure of a double-spherical traction rubber joint.
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention.
FIG. 4 is an enlarged view of the structure at B in FIG. 2 according to the present invention.
Fig. 5 is a second diagram of the internal structure of a double-spherical traction rubber joint of the present invention.
FIG. 6 is an enlarged view of the structure at C in FIG. 5 according to the present invention.
In the figure: 1. the anti-bulging structure comprises a metal outer sleeve 2, an outer rubber layer 3, a mandrel 4, a through hole 5, an inner rubber body 51, an inner spherical surface 511, an inner arc-shaped end surface 512, an inner connecting end surface 52, an outer spherical surface 521, an outer arc-shaped end surface 522, an outer connecting end surface 6, an anti-bulging cavity 7, a tensile strain bearing ring 8, a rigid ring 9, a side attaching end surface 91, an attaching cavity 10, a pre-attaching close rubber end surface 101, a side straight end surface 102, a first attaching arc surface end 103 and a second attaching arc surface end.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-6, a double-spherical traction rubber joint comprises a metal outer sleeve 1 and a mandrel 3, wherein an outer rubber layer 2 is arranged outside the metal outer sleeve 1, the mandrel 3 is arranged inside the metal outer sleeve 1, through holes 4 are formed inside the left side and the right side of the mandrel 3, an inner rubber body 5 is arranged between the metal outer sleeve 1 and the mandrel 3, a bulge-proof cavity 6 is arranged outside the inner rubber body 5, a rigid ring 8 is arranged in front of the outer part of the inner rubber body 5, and tensile strain bearing rings 7 are arranged on the left side and the right side of the rigid ring 8.
The inner rubber body 5 comprises an inner spherical surface 51 and an outer spherical surface 52, the inner spherical surface 51 is attached to the outer spherical surface section of the mandrel 3, and the outer spherical surface 52 is attached to the inner spherical surface section of the metal jacket 1.
The inner spherical surface 51 comprises an inner arc-shaped end surface 511 and an inner connecting end surface 512, and the outer spherical surface 52 comprises an outer arc-shaped end surface 521 and an outer connecting end surface 522.
The radian of the inner arc-shaped end surface 511 is 2 times of that of the outer arc-shaped end surface 521, so that the fitting degree of the inner spherical surface 51 and the outer spherical surface 52 with the mandrel 3 and the metal outer sleeve 1 is improved, and the integral mechanical performance and reliability are improved.
In order to achieve better effect, the metal outer sleeve 1 is made of manganese steel, the mandrel 3 is made of carbon steel, and the outer rubber layer 2 and the inner rubber body 5 are both made of natural rubber materials.
For better effect, the inner rubber body 5, the metal outer sleeve 1 and the mandrel 3 are combined by hot vulcanization, and the bonding strength is more than or equal to 4MPa.
The invention is a double-spherical traction rubber joint, in use, the tensile strain bearing ring 7 and the rigid ring 8 of the invention can basically eliminate the tensile strain of the rubber joint in the traction direction, and the rigid ring 8 can provide the limiting protection function when the inner rubber body 5 continuously deforms in the radial direction, so as to improve the radial rigidity of the inner rubber body 5, in addition, the tensile strain bearing ring 7 and the rigid ring 8 are both in a ring body structure, so that the inner rubber body 5 can be provided with smaller deflection rigidity to a certain extent, meanwhile, the torsional rigidity is smaller, and the capability of a vehicle to pass through a curve can be improved; the anti-bulging cavity 6 is arranged, so that the volume of the inner rubber body 5 can be reduced, the free surface of the inner rubber body 5 is enlarged, the bulging phenomenon of the inner rubber body 5 is effectively solved, the stress of the inner rubber body 5 is reduced, the deformation of the inner rubber body 5 is bulged towards the inner wall of the metal outer sleeve 1 and the direction of the anti-bulging cavity 6 along with the compression of the inner rubber body 5 under a large load, the deformation of the deformation profile is carried out along the deformation rule of the rubber joint, the bulging of rubber at the joint of the inner rubber body, the metal outer sleeve 1 and the mandrel 3 can be effectively reduced, the deformation profile is not easy to generate wrinkle cracking and extrusion cracking at the positions close to the metal outer sleeve 1 and the mandrel 3 in reciprocating deformation, and the fatigue resistance of the traction rubber joint can be effectively improved; according to the rubber joint, the inner rubber body 5, the metal outer sleeve 1 and the mandrel 3 are vulcanized into a whole, and then the metal outer sleeve 1 is extruded to shrink, so that the inner rubber body 5 is compressed, the inner rubber body 5 is in a pre-compression state before use, the pre-compression amount is larger than the tensile stress generated in the use process of the rubber joint, the comprehensive stress of the inner rubber body does not generate the tensile stress, and the service life of the rubber joint is prolonged; the invention has the advantages of simple structure, reduced tensile strain, effective avoidance of rubber bulge, and realization of high radial rigidity and low deflection rigidity.
Example 2
As shown in fig. 1-6, a double-spherical traction rubber joint comprises a metal outer sleeve 1 and a mandrel 3, wherein an outer rubber layer 2 is arranged outside the metal outer sleeve 1, the mandrel 3 is arranged inside the metal outer sleeve 1, through holes 4 are formed inside the left side and the right side of the mandrel 3, an inner rubber body 5 is arranged between the metal outer sleeve 1 and the mandrel 3, a bulge-proof cavity 6 is arranged outside the inner rubber body 5, a rigid ring 8 is arranged in front of the outside of the inner rubber body 5, and tensile strain bearing rings 7 are arranged on the left side and the right side of the rigid ring 8.
The inner rubber body 5 comprises an inner spherical surface 51 and an outer spherical surface 52, the inner spherical surface 51 is attached to the outer spherical surface section of the mandrel 3, and the outer spherical surface 52 is attached to the inner spherical surface section of the metal jacket 1.
The inner spherical surface 51 comprises an inner arc-shaped end surface 511 and an inner connecting end surface 512, and the outer spherical surface 52 comprises an outer arc-shaped end surface 521 and an outer connecting end surface 522.
The radian of the inner arc-shaped end surface 511 is 2 times of the radian of the outer arc-shaped end surface 521, so that the fitting degree of the inner spherical surface 51 and the outer spherical surface 52 with the mandrel 3 and the metal outer sleeve 1 is improved.
Interior rubber body 5 both sides all through corresponding side laminating terminal surface 9 and 1 interior wall connection of metal coat, side laminating terminal surface 9 from the top down be provided with a plurality of laminating cavity 91.
The side laminating terminal surface 9 inboard all be provided with fan-shaped structure's nearly rubber terminal surface 10 of laminating in advance, nearly rubber terminal surface 10 of laminating in advance include with the side straight terminal surface 101 that the terminal surface 9 of laminating is connected and with the first laminating cambered surface end 102, the second laminating cambered surface end 103 that interior rubber body 5 is connected.
In order to achieve better effect, the metal outer sleeve 1 is made of manganese steel, the mandrel 3 is made of carbon steel, and the outer rubber layer 2 and the inner rubber body 5 are both made of natural rubber materials.
For better effect, the inner rubber body 5, the metal outer sleeve 1 and the mandrel 3 are combined by hot vulcanization, and the bonding strength is more than or equal to 4MPa.
The manufacturing method of the double-spherical traction rubber joint comprises the following steps:
step 1: the outer side surface of the middle part of the mandrel 3 and the inner side surface of the middle part of the metal jacket 1 are processed into spherical surfaces;
step 2: the inner rubber body 5 is vulcanized and bonded between the mandrel 3 and the double spherical surfaces of the metal outer sleeve 1, and is vulcanized to form a whole;
and step 3: then the inner rubber body 5 is pre-compressed to a certain extent by the overall diameter reduction process of the metal outer sleeve 1, so that the radial pre-compression manufacturing and forming are realized;
and 4, step 4: and (3) vulcanizing and combining the outer rubber layer 2 and the metal outer sleeve 1 to finish the processing and manufacturing of the rubber joint.
The invention is a double-spherical traction rubber joint, in use, the tensile strain bearing ring 7 and the rigid ring 8 of the invention can basically eliminate the tensile strain of the rubber joint in the traction direction, and the rigid ring can provide the limiting protection function when the inner rubber body 5 continuously deforms in the radial direction, so as to improve the radial rigidity of the inner rubber body 5, in addition, the tensile strain bearing ring 7 and the rigid ring 8 are both in a ring body structure, so that the inner rubber body 5 can be provided with smaller deflection rigidity to a certain extent, meanwhile, the torsional rigidity is smaller, and the capability of a vehicle passing through a curve can be improved; the anti-bulging cavity 6 can reduce the volume of the inner rubber body 5, increase the free surface of the inner rubber body 5, effectively solve the bulging phenomenon of the inner rubber body 5 and reduce the stress of the inner rubber body 5; according to the rubber joint, the inner rubber body 5, the metal outer sleeve 1 and the mandrel 3 are vulcanized into a whole, and then the metal outer sleeve 1 is extruded to shrink, so that the inner rubber body 5 is compressed, the inner rubber body 5 is in a pre-compression state before use, the pre-compression amount is larger than the tensile stress generated in the use process of the rubber joint, the comprehensive stress of the inner rubber body 5 does not generate the tensile stress, and the service life of the rubber joint 5 is prolonged; according to the invention, both sides of an inner rubber body 5 are connected with the inner wall of a metal outer sleeve 1 through corresponding side joint end faces 9, the inner sides of the side joint end faces 9 are respectively provided with a pre-joint near rubber end face 10 with a fan-shaped structure, the pre-joint near rubber end face 10 with the fan-shaped structure has the advantages of small volume and convenience for pre-compression work compared with an arc shape or a semicircular shape, the pre-joint near rubber end face 10 comprises a side straight end face 101 connected with the side joint end face 9, a first joint arc face end 102 and a second joint arc face end 103 connected with the inner rubber body 5, after the inner rubber body 5 is pre-compressed, side rubber is parallelly attached to the side joint end face 9 of the metal outer sleeve 1, and the gap between the metal outer sleeve 1 and the inner rubber body 5 is gradually reduced; under the condition of radial load, rubber at the side surface continues to be parallelly attached to the attaching cavity 91 of the metal outer sleeve 1 and gradually attached in a reducing manner, gaps are gradually eliminated, the contact area of the inner rubber body 5 and the metal outer sleeve 1 is gradually increased, rigidity is changed, the free area of the inner rubber body 5 is increased, under the conditions of pre-compression and radial load, the deformation mode of the rubber at the end surface is parallel attachment and parallel attachment, bending deformation of the inner rubber body is effectively avoided, and the limitation of profile bending on increasing the pre-compression amount is eliminated; the invention has the advantages of simple structure, reduced tensile strain, effective avoidance of rubber bulge, and realization of high radial rigidity and low deflection rigidity.

Claims (9)

1. The utility model provides a rubber joint is pull to two spherical, it includes metal coat and dabber, its characterized in that: the metal coat outside be provided with outer rubber layer, the metal coat inside be provided with the dabber, the dabber left and right sides inside all be provided with the through-hole, metal coat and dabber between be provided with the interior rubber body, interior rubber body outside be provided with and prevent bulging cavity, the outside preceding rigid ring that is provided with of interior rubber body, the rigid ring left and right sides all be provided with and draw strain to take over the ring.
2. The double-spherical traction rubber joint as claimed in claim 1, wherein: the inner rubber body comprises an inner spherical surface and an outer spherical surface, the inner spherical surface is attached to the outer spherical surface section of the mandrel, and the outer spherical surface is attached to the inner spherical surface section of the metal jacket.
3. A double spherical traction rubber joint as defined in claim 2, wherein: the inner spherical surface comprises an inner arc-shaped end surface and an inner connecting end surface, and the outer spherical surface comprises an outer arc-shaped end surface and an outer connecting end surface.
4. A double spherical traction rubber joint as defined in claim 3, wherein: the radian of the inner arc-shaped end face is 2 times of that of the outer arc-shaped end face, so that the fitting degree of the inner spherical surface and the outer spherical surface with the mandrel and the metal outer sleeve is improved.
5. The double-spherical traction rubber joint as recited in claim 1, wherein: interior rubber body both sides all through corresponding side laminating terminal surface and metal coat inner wall connection, side laminating terminal surface from the top down be provided with a plurality of laminating cavity.
6. The double-spherical traction rubber joint as claimed in claim 5, wherein: the side laminating terminal surface inboard all be provided with the nearly rubber terminal surface of pre-pasting of fan-shaped structure, the nearly rubber terminal surface of pre-pasting include with the side straight terminal surface of side laminating terminal surface connection and with interior rubber body coupling's first laminating cambered surface end, second laminating cambered surface end.
7. The double-spherical traction rubber joint as recited in claim 1, wherein: the metal outer sleeve is made of manganese steel materials, the mandrel is made of carbon steel materials, and the outer rubber layer and the inner rubber body are made of natural rubber materials.
8. The double-spherical traction rubber joint as recited in claim 7, wherein: the inner rubber body, the metal outer sleeve and the mandrel are combined by hot vulcanization, and the bonding strength is more than or equal to 4MPa.
9. The method for manufacturing a double spherical traction rubber joint according to any one of claims 1 to 8, wherein: it comprises the following steps:
step 1: processing the outer side surface of the middle part of the mandrel and the inner side surface of the middle part of the metal jacket into spherical surfaces;
step 2: vulcanizing and bonding the inner rubber body between the mandrel and the double spherical surfaces of the metal outer sleeve, and vulcanizing to form a whole;
and step 3: then the inner rubber body is pre-compressed to a certain extent by the overall diameter reduction process of the metal outer sleeve, so that the radial pre-compression manufacturing and forming are realized;
and 4, step 4: and (4) vulcanizing and combining the outer rubber layer and the metal jacket to complete the processing and manufacturing of the rubber joint.
CN202210838963.3A 2022-07-18 2022-07-18 Double-spherical traction rubber joint and manufacturing method thereof Pending CN115217876A (en)

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Application Number Priority Date Filing Date Title
CN202210838963.3A CN115217876A (en) 2022-07-18 2022-07-18 Double-spherical traction rubber joint and manufacturing method thereof

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Application Number Priority Date Filing Date Title
CN202210838963.3A CN115217876A (en) 2022-07-18 2022-07-18 Double-spherical traction rubber joint and manufacturing method thereof

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Publication Number Publication Date
CN115217876A true CN115217876A (en) 2022-10-21

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Application Number Title Priority Date Filing Date
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1401882A (en) * 1971-07-24 1975-08-06 Metzeler Ag Flexible pipe coupling
JPH09100861A (en) * 1995-10-05 1997-04-15 Toyoda Gosei Co Ltd Suspension bush
CN1524042A (en) * 2002-05-02 2004-08-25 ZF ��ķ�����½�����Ʒ�ɷݹ�˾ Steering triangle
CN201363382Y (en) * 2009-01-07 2009-12-16 书元机械企业(昆山)有限公司 Novel shock-proof bushing block
CN203126878U (en) * 2013-04-09 2013-08-14 南车株洲电力机车有限公司 Rubber joint
CN108909755A (en) * 2018-07-23 2018-11-30 株洲时代新材料科技股份有限公司 A kind of double spherical surfaces traction rubber arthrosis and preparation method thereof
WO2019137645A1 (en) * 2018-01-11 2019-07-18 Contitech Luftfedersysteme Gmbh Hydraulic bearing bush
CN214788821U (en) * 2021-06-22 2021-11-19 郑州天源橡胶有限公司 Flexible connection rubber joint for rolling stock

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1401882A (en) * 1971-07-24 1975-08-06 Metzeler Ag Flexible pipe coupling
JPH09100861A (en) * 1995-10-05 1997-04-15 Toyoda Gosei Co Ltd Suspension bush
CN1524042A (en) * 2002-05-02 2004-08-25 ZF ��ķ�����½�����Ʒ�ɷݹ�˾ Steering triangle
CN201363382Y (en) * 2009-01-07 2009-12-16 书元机械企业(昆山)有限公司 Novel shock-proof bushing block
CN203126878U (en) * 2013-04-09 2013-08-14 南车株洲电力机车有限公司 Rubber joint
WO2019137645A1 (en) * 2018-01-11 2019-07-18 Contitech Luftfedersysteme Gmbh Hydraulic bearing bush
CN108909755A (en) * 2018-07-23 2018-11-30 株洲时代新材料科技股份有限公司 A kind of double spherical surfaces traction rubber arthrosis and preparation method thereof
CN214788821U (en) * 2021-06-22 2021-11-19 郑州天源橡胶有限公司 Flexible connection rubber joint for rolling stock

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