CN107128325A - Rubber nodal point - Google Patents
Rubber nodal point Download PDFInfo
- Publication number
- CN107128325A CN107128325A CN201710357983.8A CN201710357983A CN107128325A CN 107128325 A CN107128325 A CN 107128325A CN 201710357983 A CN201710357983 A CN 201710357983A CN 107128325 A CN107128325 A CN 107128325A
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- CN
- China
- Prior art keywords
- sleeve
- rubber
- shaft core
- nodal point
- rubber bodies
- Prior art date
- 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.)
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Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Abstract
Rubber nodal point, including shaft core, sleeve and rubber bodies, the sleeve are tubular, are sleeved in shaft core, including side perisporium and extend both sides end wall from side perisporium two ends to shaft core direction, and rubber bodies and shaft core, which vulcanize, to be integrated, and there is gap between the end wall of sleeve both sides；Further comprise the anticreep axle sleeve and limit shaft sleeve for being arranged on rubber bodies two ends, the anticreep axle sleeve towards rubber bodies one side be taper surface, rubber bodies are pressed into along taper surface, it press-fits between rubber bodies and sleeve both sides end wall for interference, and anticreep axle sleeve further has gap between shaft core；The limit shaft sleeve is arranged in the gap between anticreep axle sleeve and shaft core, and it press-fits between rubber bodies and sleeve both sides end wall for interference.The present invention can increase considerably the axial rigidity and bending stiffness of rubber nodal point on the premise of rubber nodal point radial rigidity is not changed.
Description
Technical field
The present invention relates to a kind of track traffic damping means, specifically say, be a kind of track traffic vibration damping rubber nodal point.
Background technology
Rubber nodal point is widely used in track traffic damped products, especially the damped products of bogie, is to ensure vehicle
The critical component of safe operation.According to the application operating mode of Brake Products, rubber nodal point requirement has preferable effectiveness in vibration suppression, has simultaneously
There are certain axial direction, radial direction and bending stiffness requirement, it is ensured that when vehicle crosses bend, the deflection of brake clamp unit causes and wheel pair
Motion is not interfered.
Current rubber nodal point primary structure pattern has two kinds.
Publication No. CN201296256Y Chinese patent application discloses a kind of rubber joint used for rail transportation bogie,
It includes overcoat, shaft core and rubber layer, and sets back-up ring (anticreep axle sleeve) at the two ends of rubber layer.This product structure such as Fig. 1
Shown, this node is vulcanized integrally using shaft core 4 and rubber bodies 3, is fitted in sleeve (or product framework) 1, and anticreep axle sleeve 5 is prevented
Only axially come off.Such node product typically has certain radial rigidity, and radial direction can bear certain impulsive force, has
There is preferable effectiveness in vibration suppression.This structure axial rigidity and bending stiffness are smaller, easily cause brake clamp unit with wheel to fortune
Dynamic interference.
It is another rubber nodal point structural representation applied to bogie shown in Fig. 2, this node uses shaft core 4, rubber
Body 3, overcoat 2 vulcanize integrally, then overall structure is fitted on sleeve (or product framework) 1, and this structure has larger
Radial rigidity, while also have relatively large axial rigidity and bending stiffness.It is larger just because of its bending stiffness, can be to prevent
Only brake clamp unit and wheel to movement interference, but go to reduce damping effect.
The content of the invention
It is an object of the present invention to can be significantly there is provided one kind on the premise of rubber nodal point radial rigidity is not changed
Increase the new type rubber node of rubber nodal point axial rigidity and bending stiffness.
Present disclosure is：Rubber nodal point, including shaft core, sleeve and rubber bodies, the sleeve are tubular, are sleeved on axle
On core, including side perisporium and extend both sides end wall from side perisporium two ends to shaft core direction, rubber bodies and shaft core, which vulcanize, to be integrated, and
There is gap between the end wall of sleeve both sides；Further comprise the anticreep axle sleeve and limit shaft sleeve for being arranged on rubber bodies two ends, it is described
Anticreep axle sleeve is taper surface towards the one side of rubber bodies, and rubber bodies, itself and rubber bodies and sleeve both sides end wall are pressed into along taper surface
Between press-fit for interference, rubber bodies are squeezed in by the elastic force of rubber on the conical surface of anticreep axle sleeve；Anticreep axle sleeve further with axle
There is gap between core；The limit shaft sleeve is arranged in the gap between anticreep axle sleeve and shaft core, itself and rubber bodies and sleeve two
Press-fit between side wall for interference.
Preferably：Further there is gap between shaft core in the limit shaft sleeve.
Preferably：The one side that limit shaft sleeve is engaged with anticreep axle sleeve is taper surface, is brought into close contact therebetween.
Preferably：Limit shaft sleeve uses nonmetallic or metal material, and anticreep axle sleeve uses metal material.
Preferably：Limit shaft sleeve can be integrated with anticreep axle sleeve or be separable structure.
Beneficial effects of the present invention are：
The invention provides a kind of new type rubber node structure applied to rail vehicle, by setting anticreep axle sleeve and limit
Position axle sleeve is used cooperatively, and rubber nodal point is had radial rigidity, while also have axial direction and bending stiffness, and limit shaft sleeve with
There is gap in shaft core part, this structure and can limit excessive bending, while again there is axial limiting to act on, that is, allow product
Bent in certain angle, and angle of bend can be controlled, and prevent its axial jump.Make vehicle when by bend, prevent
The deflection of nipper units cause with wheel to movement interference.
The present invention can increase considerably the axially firm of rubber nodal point on the premise of rubber nodal point radial rigidity is not changed
Degree and bending stiffness, when preventing the bending stiffness of rubber nodal point from withstanding shocks, limit shaft sleeve can limit the curved of rubber nodal point
Song, the percussion being subject to cushioning rail vehicle strengthens the damping property of product.
Brief description of the drawings
Fig. 1 is a kind of rubber nodal point structural representation in the prior art.
Fig. 2 is another rubber nodal point structural representation in the prior art.
Fig. 3 is rubber nodal point structural representation of the present invention.
Wherein：1- sleeves, 101- sides perisporium, 102- end walls, 2- overcoats, 3- rubber bodies, 4- shaft cores, 5- anticreep axle sleeves, 6-
Limit shaft sleeve
Embodiment
The embodiment of the present invention is clearly fully described by below with reference to accompanying drawing.Obviously, it is embodied
Embodiment described by mode is only a part of embodiment of the present invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made,
Belong to protection scope of the present invention.
The invention provides a kind of rubber nodal point applied to railway vehicle vibration damping system.With traditional rubber nodal point phase
Than this product has more preferable radial rigidity, axial rigidity and degree of crook.
Identical with traditional rubber nodal point structure, the rubber nodal point that the application is provided includes shaft core 4, sleeve 1 and rubber bodies
3, sleeve 1 be tubular, be sleeved in shaft core 4, including side perisporium 101 and from the two ends of side perisporium 101 to the direction of shaft core 4 extend end wall
102, after the completion of shaft core 4 is machined, binding agent is smeared in mould is put into, rubber size is injected into mould, by axle more than
Core 4 and the vulcanization of rubber bodies 3 are integrated, then are fitted in upper bush 1.Between existing between rubber bodies 3 and the both sides end wall of sleeve 1
Gap.Described herein as with specific reference to Fig. 3, using the direction shown in Fig. 3 as standard, vertical direction is following " radial direction ", horizontal direction
For following " axial direction ".
From unlike traditional rubber nodal point structure, the present embodiment provide rubber nodal point structure further comprise being arranged on
The anticreep axle sleeve 5 and limit shaft sleeve 6 at the two ends of rubber bodies 3.
Anticreep axle sleeve 5 towards rubber bodies 3 one side be taper surface, due to being non-between rubber bodies and the side perisporium of sleeve 1
Fixed connection structure so that anticreep axle sleeve 5 can be pressed into rubber bodies 3 along taper surface, and rubber bodies 3 are pressed towards the direction of shaft core 4
Contracting.Press-fit between anticreep axle sleeve 5 and rubber bodies 3 and the both sides end wall 102 of sleeve 1 for interference, after press-fiting, anticreep axle sleeve 5 is further
There is gap between shaft core 4.
Anticreep axle sleeve 5 can ensure the radial rigidity of rubber bodies 3, limit the axial deformation of rubber bodies 3, but itself and shaft core 4
Between gap will also result in the axial direction of rubber bodies 3 simultaneously and easily come off.
To solve problem above, limit shaft sleeve 6 is further set in the gap between anticreep axle sleeve 5 and shaft core 4, it is spacing
The one side that axle sleeve 6 is engaged with anticreep axle sleeve 5 is to use the conical surface to match somebody with somebody between taper surface, i.e. limit shaft sleeve 6 and anticreep axle sleeve 5
The pattern of conjunction, limit shaft sleeve 6 is squeezed in by the elastic force of rubber on the conical surface of anticreep axle sleeve 5.Limit shaft sleeve 6 and anticreep axle sleeve 5
It can be integrated or for separable structure, integrative-structure advantageously ensures that the stability of product structure, and Split type structure is more flexible,
Under the premise of parts damages, change more convenient.
Further there is gap in limit shaft sleeve 6, this gap can increase the axial bending of node between shaft core 4.
Limit shaft sleeve uses nonmetallic (meeting insulation requirements during Some vehicles use) or metal material, anticreep axle sleeve
Using metal material.
Rubber nodal point of the present invention can be arranged in train bogie system, with certain radial rigidity and preferably
Damping property, while also have axial bending performance and axial rigidity.In train normal straight traveling or turning driving process
In, can show preferably it is damping and prevent clamp motion caused by take turns to movement interference.
Claims (5)
1. rubber nodal point, including shaft core, sleeve and rubber bodies, the sleeve is tubular, is sleeved in shaft core, including side perisporium and
Extend both sides end wall from side perisporium two ends to shaft core direction, rubber bodies are integrated with shaft core vulcanization, and between the end wall of sleeve both sides
There is gap；It is characterized in that：Further comprise the anticreep axle sleeve and limit shaft sleeve for being arranged on rubber bodies two ends, the anticreep axle
The one side covered towards rubber bodies is taper surface, is pressed into rubber bodies along taper surface, it is between rubber bodies and sleeve both sides end wall
Interference press-fits, and anticreep axle sleeve further has gap between shaft core；The limit shaft sleeve is arranged between anticreep axle sleeve and shaft core
Gap in, it press-fits between rubber bodies and sleeve both sides end wall for interference.
2. rubber nodal point as claimed in claim 1, it is characterised in that：Between the limit shaft sleeve further exists between shaft core
Gap.
3. rubber nodal point as claimed in claim 1, it is characterised in that：The one side that limit shaft sleeve is engaged with anticreep axle sleeve is cone
Shape face, is brought into close contact therebetween.
4. rubber nodal point as claimed in claim 1, it is characterised in that：Limit shaft sleeve uses nonmetallic or metal material, anticreep
Axle sleeve uses metal material.
5. rubber nodal point as claimed in claim 1, it is characterised in that：Limit shaft sleeve can be integrated with anticreep axle sleeve or for that can divide
From structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710357983.8A CN107128325A (en) | 2017-05-19 | 2017-05-19 | Rubber nodal point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710357983.8A CN107128325A (en) | 2017-05-19 | 2017-05-19 | Rubber nodal point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107128325A true CN107128325A (en) | 2017-09-05 |
Family
ID=59732916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710357983.8A Pending CN107128325A (en) | 2017-05-19 | 2017-05-19 | Rubber nodal point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107128325A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0409704A1 (en) * | 1989-07-19 | 1991-01-23 | Caoutchouc Manufacture Et Plastiques | Elastic joint with high radial damping and progressive restriction of rigidity |
| CN201296256Y (en) * | 2009-03-19 | 2009-08-26 | 株洲名扬橡塑有限公司 | Rubber joint used for rail transportation bogie |
| CN101596786A (en) * | 2009-07-03 | 2009-12-09 | 株洲时代新材料科技股份有限公司 | A kind of ball hinged rubber elastic element assembling mode and product |
| CN101852263A (en) * | 2010-03-22 | 2010-10-06 | 株洲时代新材料科技股份有限公司 | Spherical hinge rubber elastic element rigidity changing method, and rubber elastic element and manufacturing method thereof |
| CN103758854A (en) * | 2014-02-11 | 2014-04-30 | 株洲时代新材料科技股份有限公司 | Traction bar ball assembly, and assembling tool and assembling method for traction bar ball assembly |
| CN203879923U (en) * | 2014-05-12 | 2014-10-15 | 固安金海橡塑集团有限公司 | Traction spherical hinge with low-falling-possibility backstop for railway locomotive |
-
2017
- 2017-05-19 CN CN201710357983.8A patent/CN107128325A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0409704A1 (en) * | 1989-07-19 | 1991-01-23 | Caoutchouc Manufacture Et Plastiques | Elastic joint with high radial damping and progressive restriction of rigidity |
| CN201296256Y (en) * | 2009-03-19 | 2009-08-26 | 株洲名扬橡塑有限公司 | Rubber joint used for rail transportation bogie |
| CN101596786A (en) * | 2009-07-03 | 2009-12-09 | 株洲时代新材料科技股份有限公司 | A kind of ball hinged rubber elastic element assembling mode and product |
| CN101852263A (en) * | 2010-03-22 | 2010-10-06 | 株洲时代新材料科技股份有限公司 | Spherical hinge rubber elastic element rigidity changing method, and rubber elastic element and manufacturing method thereof |
| CN103758854A (en) * | 2014-02-11 | 2014-04-30 | 株洲时代新材料科技股份有限公司 | Traction bar ball assembly, and assembling tool and assembling method for traction bar ball assembly |
| CN203879923U (en) * | 2014-05-12 | 2014-10-15 | 固安金海橡塑集团有限公司 | Traction spherical hinge with low-falling-possibility backstop for railway locomotive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190516 Address after: No. 231, Ruichang Road, North District, Qingdao, Shandong Applicant after: CRRC QINGDAO SIFANG VEHICLE RESEARCH INSTITUTE CO., LTD. Applicant after: Qingdao Sirui Technology Co., Ltd. Address before: 266112 Qingdao High-tech Industrial Development Zone and Ronglu 8, Qingdao, Shandong Province Applicant before: Qingdao Sirui Technology Co., Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170905 |