CN202969169U - Integrated small-resistance backing board - Google Patents
Integrated small-resistance backing board Download PDFInfo
- Publication number
- CN202969169U CN202969169U CN 201220514636 CN201220514636U CN202969169U CN 202969169 U CN202969169 U CN 202969169U CN 201220514636 CN201220514636 CN 201220514636 CN 201220514636 U CN201220514636 U CN 201220514636U CN 202969169 U CN202969169 U CN 202969169U
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- terrace
- frustum
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- edge
- backing plate
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Abstract
The utility model relates to an integrated small-resistance backing board, which adopts the structure that an upper surface and a lower surface of a body form a frustum structure with an upper surface on which symmetric quadrilateral frustum-shaped raised blocks and inverted frustum-shaped concave pits are arranged in a manner of being in mutual dislocation on the upper and the lower surfaces of the body; the edges of the adjacent frustum are not connected so as to form an 'island' structure; the bottom planes of the adjacent concave pits are connected to form a 'sea' structure; raised blocks of the frustum and the adjacent concave pits form a 'sea island' structure; and every four adjacent frustum-shaped raised blocks form one inverted frustum-shaped concave pit. The backing board provided by the utility model adopts an integrated structure to solve the separation problem of a double-layered composite structure, can permanently maintain anti-creeping resistance less than 4 kN, avoids the generation of the corrosion, and is long in service life.
Description
Technical field
The utility model relates to a kind of track resilient sleeper-bearing, relates in particular in a kind of urban track traffic, the friction resistance backing plate that uses under the elevated line rail.
Background technology
Along with the development of urban track traffic and the requirement of urban planning, elevated line is more and more.Elevated line adopts long rail more, and requires fastener system anti-creep resistance to be not more than 4kN, creeping when being beneficial to rail and expanding with heat and contract with cold.Common track slight drag backing plate mostly is composite construction in the market, mainly contains rubber combined backing plate and elastomeric vibration-absorbing pad of slight drag, but all exists deficiency.
The note rail level drag reduction layer of rubber combined backing plate is corrosion resistant plate, and because elevated line is outdoor operation, corrosion resistant plate can be because of air humidity and rainwater effect generation corrosion thing.After long-term operation, the corrosion thing sticks between the flange of rail and corrosion resistant plate, has limited expanding with heat and contract with cold of rail, loses the meaning of slight drag; On the other hand, the elastic layer of rubber combined backing plate is elastomeric material, and is ageing-resistant relatively poor with fatigue performance, generally runs 3-5 meeting hardening, the effect of following the string.
The drag reduction layer of elastomeric vibration-absorbing pad of slight drag adopts the high molecular abrasion-proof material, and elastic layer adopts polyester elastomer materials, both is combined with each other mechanically.Although this backing plate has solved rainwater corrosion problem and ageing-resistant, endurance problem, also brought new problem: the mechanical type combined strength bination is inadequate, occurs the individual separation phenomenon in operation; Drag reduction layer and elastic layer separate machined are in addition processed loaded down with trivial detailsly, and cost of production is high.
The utility model content
The purpose of this utility model is for the deficiencies in the prior art, and a kind of integrated slight drag backing plate is provided, existing little frictional force so that the operation in the anti-creep resistance less than 4kN; Can make again backing plate utilize deflection, shearing, compressive deformation that elasticity is provided simultaneously, guarantee the vibration damping requirement in operation.
For completing above-mentioned purpose, the technical solution adopted in the utility model is: integrated slight drag backing plate, upper and lower faces at body forms the terrace with edge structure, the upper surface of described terrace with edge structure is symmetrical tetragonal terrace with edge shape projection and inverted terrace with edge shape pit, and in body upper and lower faces mutual dislocation, it is characterized in that, do not join between adjacent terrace with edge rib-rib, form " island " structure; Adjacent pit baseplane is connected, and forms " sea " structure; The projection of terrace with edge and adjacent pit form " island " structure.
Further, the adjacent terrace with edge shape projection in four of every upper and lower, left and right surrounds an inverted terrace with edge shape pit.
Further, described body adopts the thermoplastic polyether ester material to make.
The upper surface of the utility model terrace with edge is load-carrying surface, can provide elasticity by deflection, shearing, compressive strain under the effect of vertical force, unload power after deformation recover rapidly.The anti-creep resistance can be realized by the size that changes terrace with edge shape projection top surface area; Rigidity can be by being inverted terrace with edge shape pit the degree of depth and the gradient on terrace with edge shape nub side surface change; The integrated slight drag backing plate of the low anti-creep resistance of the macromolecular material production of the enough high-modulus of energy, low rigidity.Its beneficial effect is: 1, keep for a long time the anti-creep resistance less than 4kN; 2, backing plate is made by macromolecular material, can not produce the corrosion thing; 3, has the low output ratio of Q-switching to free running; 4, endurance long service life reduces line upkeep, maintenance; 5, processing is once completed, simple and fast; 6, owing to being integrative-structure, the problem of separation of two-layer composite before having solved; 7, the recyclable recycling of inefficacy backing plate, be conducive to environmental protection.
Description of drawings
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is product figure of the present utility model;
Fig. 2 is sectional drawing of the present utility model.
The specific embodiment
Integrated slight drag backing plate as shown in Figure 1 and Figure 2 is characterized in that, in the upper and lower faces formation terrace with edge structure of body.The upper surface of described terrace with edge structure is symmetrical tetragonal terrace with edge shape projection and inverted terrace with edge shape pit, and in body upper and lower faces mutual dislocation.The adjacent terrace with edge shape projection in four of every upper and lower, left and right surrounds an inverted terrace with edge shape pit.Do not join between adjacent terrace with edge rib-rib, form " island " structure; Adjacent pit baseplane is connected, and forms " sea " structure; The projection of terrace with edge and adjacent pit form " island " structure.By the size of terrace with edge top surface area, can make the backing plate of different anti-creep resistances; By the gradient on terrace with edge shape nub side surface, the degree of depth of pit, can produce the vibration attenuation pad of different-stiffness.
Described body adopts the thermoplastic polyether ester material to make, and the method time processing in mould by injection moulding becomes goods.During use, be cut into as required suitable backing plate.This product does not have special requirement to production equipment, and known equipment gets final product.
The above specific embodiment only is used for explanation the utility model, but not is used for limiting the utility model, and the equivalent variations that those skilled in the art carry out above-described embodiment, replacement are all within the claim protection domain.
Claims (3)
1. integrated slight drag backing plate, upper and lower faces at body forms the terrace with edge structure, the upper surface of described terrace with edge structure is symmetrical tetragonal terrace with edge shape projection and inverted terrace with edge shape pit, and in body upper and lower faces mutual dislocation, it is characterized in that, do not join between adjacent terrace with edge rib-rib, form " island " structure; Adjacent pit baseplane is connected, and forms " sea " structure; The projection of terrace with edge and adjacent pit form " island " structure.
2. integrated slight drag backing plate according to claim 1, is characterized in that, the adjacent terrace with edge shape projection in four of every upper and lower, left and right surrounds an inverted terrace with edge shape pit.
3. integrated slight drag backing plate according to claim 1, is characterized in that, described body adopts the thermoplastic polyether ester material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220514636 CN202969169U (en) | 2012-10-10 | 2012-10-10 | Integrated small-resistance backing board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220514636 CN202969169U (en) | 2012-10-10 | 2012-10-10 | Integrated small-resistance backing board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202969169U true CN202969169U (en) | 2013-06-05 |
Family
ID=48510265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220514636 Expired - Fee Related CN202969169U (en) | 2012-10-10 | 2012-10-10 | Integrated small-resistance backing board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202969169U (en) |
-
2012
- 2012-10-10 CN CN 201220514636 patent/CN202969169U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131010 |