CN202047363U - Pressure-bearing support - Google Patents
Pressure-bearing support Download PDFInfo
- Publication number
- CN202047363U CN202047363U CN201120085254XU CN201120085254U CN202047363U CN 202047363 U CN202047363 U CN 202047363U CN 201120085254X U CN201120085254X U CN 201120085254XU CN 201120085254 U CN201120085254 U CN 201120085254U CN 202047363 U CN202047363 U CN 202047363U
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- pressure
- layer
- support
- bearing supporting
- bearing support
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Abstract
The utility model discloses a pressure-bearing support comprising a polyurethane elastic layer and a sliding wear-resisting layer which are bonded with each other to form an integral structure. Compared with a traditional rubber pressure-bearing support, as the pressure-bearing support adopts polyurethane material, and the adjustable range of the polyurethane material is large, the elastic deformation requirement can be met by adjusting the rigidity; by adopting the good mechanical property of the polyurethane material, the anti-fatigue property of the support is improved markedly, the residual deformation of the support is reduced greatly, and the service life of the support is long; in addition, as the polyurethane material adopts a pouring molding method to manufacture products, the quality of the obtained product is stable, the pollution is small, the energy consumption is low, and the manufacturing cost is saved greatly; and simultaneously, the sliding wear-resisting layer is prepared by adopting teflon material or filled teflon material, so that the sliding friction coefficient is low, thereby being beneficial to the sliding between the pressure-bearing support and a box body when the support is stressed.
Description
Technical field
The utility model relates to the device accessory in a kind of bridge field, particularly a kind of pressure-bearing supporting that is used for bridge extension joint.
Background technology
Bridge extension joint is important composition parts of bridge construction, is for making vehicle steadily by bridge floor and satisfy the distortion needs of bridge floor, the general name of the various devices that are provided with at the deck joint place.Modulus formula bridge extension joint is meant mainly the supporting construction that is combined by special section or steel assembly and elastic component, is assembled into the series of products of different size stroke as required.Its elastic component mainly comprises elastic bodys such as compressing supporting, pressure-bearing supporting, shear spring, compression control spring.In the prior art, the main composite construction that adopts rubber and iron plate of pressure-bearing supporting, as shown in Figure 1, the method by sulfidization molding is provided with the formation caoutchouc elasticity in the iron plate outer wrapping, then bonding one deck polytetrafluoroethylene floor on the rubber elastomer.In this pressure-bearing supporting, owing in the centre of pressure-bearing supporting iron plate is set, iron plate also greatly reduces the elastic reaction of rubber when playing the pressure-bearing effect, and dynamic mechanical is relatively poor; In addition, the ageing-resistant performance of elastomeric material and cryogenic property are relatively poor; Because the elastomeric material poor mechanical property causes the shearing force of gained pressure-bearing supporting product less, anti-fatigue performance is relatively poor, and the permanent set amount is bigger; And the production method that adopts sulfuration causes polluting and energy consumption is bigger, and cost is higher, and usually because colloid mixes the inhomogeneous products obtained therefrom quality instability that causes.
At above-mentioned deficiency, need to explore a kind of novel pressure-bearing supporting that is used for bridge extension joint, make its good springiness, dynamic mechanical can improve greatly, and the cost of production reduction, and product quality improves greatly, environmental protection simultaneously.
The utility model content
In view of this, the purpose of this utility model provides the supporting of a kind of pressure-bearing, make its good springiness, anti-fatigue performance is good, the permanent set amount is less, comprehensive mechanical property height, long service life, and cost is lower.
The purpose of this utility model is achieved through the following technical solutions: a kind of pressure-bearing supporting, comprise elastic polyurethane layer and wearing layer, and be bonded as one structure between elastic polyurethane layer and the slip wearing layer.
The utility model also provides a kind of pressure-bearing supporting construction: a kind of pressure-bearing supporting, comprise elastic polyurethane layer and wearing layer, between described elastic polyurethane layer and the wearing layer resistance to compression layer is set also, is bonded as one structure by the viscose glue mode between elastic polyurethane layer, resistance to compression layer and the wearing layer.
Further, the thickness of described elastic polyurethane layer is 7mm-20mm;
Further, described slip wearing layer is made by polytetrafluoroethylmaterial material or filled polytetrafluoroethylene material;
Further, described resistance to compression plate is made by epoxy novolac laminated paper board or monolithic metal.
The beneficial effects of the utility model: pressure-bearing supporting of the present utility model, compare with traditional rubber pressure-bearing supporting, owing to adopt polyurethane material, utilize polyurethane material to utilize the polyurethane material adjustable extent to satisfy the elastic deformation demand by adjusting hardness greatly, utilize polyurethane material good mechanical performance, make pressure-bearing supporting anti-fatigue performance of the present utility model be clearly better, the permanent set amount reduces greatly, long service life; In addition, owing to adopt the method for moulding by casting to carry out the product manufacturing to polyurethane material, the products obtained therefrom steady quality pollutes for a short time, and energy consumption is low, has saved manufacturing cost greatly; Simultaneously, adopt polytetrafluoroethylmaterial material or filled polytetrafluoroethylene material preparation slip wearing layer, the coefficient of sliding friction is low, helps the slip between the pressure-bearing supporting and casing when stressed.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the structural representation of pressure-bearing supporting in the prior art;
Fig. 2 is the structural representation of pressure-bearing supporting of the present utility model.
The specific embodiment
Fig. 1 is the structural representation of pressure-bearing supporting in the prior art; Fig. 2 is the structural representation of pressure-bearing supporting of the present utility model.
As shown in the figure: pressure-bearing supporting of the present utility model, comprise elastic polyurethane layer 1 and wearing layer 3, be bonded as one structure between elastic polyurethane layer 1 and the slip wearing layer 3; In the present embodiment, the thickness of described elastic polyurethane layer 1 is 7mm-20mm.Utilize the adjustable extent of polyurethane material big, excellent mechanical property has improved the elasticity of pressure-bearing supporting greatly, and dynamic mechanical improves greatly, and the permanent set amount reduces greatly.
The utility model also provides another pressure-bearing supporting, comprise elastic polyurethane layer 1 and wearing layer 3, between described elastic polyurethane layer 1 and the wearing layer 3 resistance to compression layer 2 is set also, is bonded as one structure by the viscose glue mode between elastic polyurethane layer 1, resistance to compression layer 2 and the wearing layer 3.Resistance to compression layer 2 adopts epoxy novolac laminated paper board (being commonly called as bakelite plate) or monolithic metal to make in the present embodiment, utilizes the good rigidity of bakelite plate or monolithic metal, can play tangible carrying effect.
As the further improvement to the foregoing description, described slip wearing layer 3 is made by polytetrafluoroethylmaterial material.Utilize good abrasion resistance of polytetrafluoroethylmaterial material or filled polytetrafluoroethylene material and the low characteristics of friction factor, make the pressure-bearing supporting in the course of the work excessively smoothly, and wear-resisting lastingly, and prolong application life greatly.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (5)
1. a pressure-bearing supporting is characterized in that: comprise elastic polyurethane layer (1) and wearing layer (3), be bonded as one structure between elastic polyurethane layer (1) and the slip wearing layer (3).
2. pressure-bearing supporting according to claim 1, it is characterized in that: between described elastic polyurethane layer (1) and the wearing layer (3) resistance to compression layer (2) is set also, is bonded as one structure by the viscose glue mode between elastic polyurethane layer (1), resistance to compression layer (2) and the wearing layer (3).
3. pressure-bearing supporting according to claim 1 and 2, it is characterized in that: the thickness of described elastic polyurethane layer (1) is 7mm-20mm.
4. pressure-bearing supporting according to claim 1 and 2, it is characterized in that: described slip wearing layer (3) is made by polytetrafluoroethylmaterial material or filled polytetrafluoroethylene material.
5. pressure-bearing supporting according to claim 2, it is characterized in that: described resistance to compression plate (2) is made by epoxy novolac laminated paper board or monolithic metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120085254XU CN202047363U (en) | 2011-03-28 | 2011-03-28 | Pressure-bearing support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120085254XU CN202047363U (en) | 2011-03-28 | 2011-03-28 | Pressure-bearing support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202047363U true CN202047363U (en) | 2011-11-23 |
Family
ID=44987677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120085254XU Expired - Fee Related CN202047363U (en) | 2011-03-28 | 2011-03-28 | Pressure-bearing support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202047363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243645A (en) * | 2013-05-21 | 2013-08-14 | 洛阳双瑞特种装备有限公司 | Sliding support for bridge extension device |
-
2011
- 2011-03-28 CN CN201120085254XU patent/CN202047363U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243645A (en) * | 2013-05-21 | 2013-08-14 | 洛阳双瑞特种装备有限公司 | Sliding support for bridge extension device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20160328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |