CN203892448U - Rubber shock absorption product with built-in UHMWPE (Ultra-High Molecular Weight Polyethylene) framework - Google Patents

Abstract

The utility model discloses a rubber damping product with a built-in ultra-high molecular weight polyethylene skeleton. The ultra-high molecular weight polyethylene board is placed in the rubber shock-absorbing product (3) as the main skeleton (1) of the rubber shock-absorbing product, and serves as the supporting structure of the rubber shock-absorbing product. In order to improve the bonding strength between the ultra-high molecular weight polyethylene skeleton and the rubber material, a hollow design is adopted for the ultra-high molecular weight polyethylene plate, that is, holes (2) are opened on the skeleton. The utility model has the advantages of practical structure, good impact resistance and shock absorption, light weight, convenient installation and maintenance, economical price and easy realization.

Description

Rubber shock-absorbing products with built-in ultra-high molecular weight polyethylene skeleton

technical field

The utility model relates to a rubber shock-absorbing product with a built-in ultra-high molecular weight polyethylene skeleton, which belongs to the technical field of manufacturing rubber, plastic products and hardware accessories. the

Background technique

Rubber shock-absorbing products are widely used in various vehicles, ships, machinery, instruments, bridges, and buildings. The main materials of rubber shock-absorbing products are mostly natural rubber, neoprene or ethylene-propylene rubber. Some other synthetic rubbers will be used under certain conditions, such as: nitrile rubber is often used for oil resistance requirements, silicone rubber is used for high and low temperature resistance, butyl rubber is used for high damping requirements, etc. Rubber shock-absorbing products mainly use high elasticity to isolate vibrations and absorb shocks to eliminate or slow down the adverse consequences of vibrations. Its molding method mostly adopts compression molding. Usually made into supports or connectors. the

Rubber shock-absorbing products use a certain number of supporting skeletons inside according to their use environment and pressure-bearing size. The shape of the skeleton and the distribution position of the skeleton are designed according to the environmental requirements of the use. The skeleton material is mainly made of metal steel plates. Metal materials have the advantages of good adhesion with rubber, pressure resistance, and impact resistance. The disadvantages are that the weight of metal materials is relatively high, and the cost of metal materials is also high, which increases the cost of production, replacement and maintenance. the

Utility model content

Technical solutions:

In order to solve the above problems, the utility model adopts the ultra-high molecular weight polyethylene board as the skeleton of the rubber shock-absorbing product, which reduces the weight of the rubber shock-absorbing product and can ensure the pressure resistance and impact resistance of the rubber shock-absorbing product.

The ultra-high molecular weight polyethylene board used in the utility model has a molecular weight of 3 million to 5 million, a density of 0.93 to 0.94 g/cm ³ , a hardness of 60 to 80 Shore D, a tensile strength of ≥30 MPa, and a yield strength of ≥20 MPa. Bending strength ≥ 600MPa (23°C), tensile elongation at break 300-400%.

The molding method of the ultra-high molecular weight polyethylene sheet skeleton adopts the compression molding method, and a number of holes are arranged on the surface of the skeleton, which is beneficial to the positioning and connection with the rubber matrix material. The holes can be formed by the mold cavity with a columnar structure during the molding of the skeleton, or can be formed by post-processing methods, such as: mechanical drilling. It can be reprocessed according to actual requirements. the

The skeleton needs to be incorporated into the rubber base material of shock-absorbing products. The utility model adopts the vulcanization molding process usually used in the production of rubber products to realize the positioning and combination of the skeleton in the rubber base material of shock-absorbing products. the

Beneficial effect:

The utility model realizes the application of ultra-high molecular weight polyethylene board in rubber shock-absorbing products, reduces the weight of rubber shock-absorbing products, reduces the production cost of products, and at the same time ensures that rubber shock-absorbing products have good pressure resistance and impact resistance sex.

Below in conjunction with accompanying drawing, structure of the present utility model is further described. the

Description of drawings

The three-dimensional schematic view of the rubber shock-absorbing product of Fig. 1 ultra-high molecular weight polyethylene skeleton;

The schematic cross-sectional view of the rubber shock-absorbing product of Fig. 2 UHMWPE skeleton along the symmetrical plane along the length direction;

in:

1 skeleton, 2 skeleton hole, 3 rubber matrix material.

Detailed ways

Embodiment: Referring to Fig. 1 and Fig. 2, the utility model is a shock-absorbing product with a built-in ultra-high molecular weight polyethylene skeleton, which is mainly composed of a skeleton 1, a skeleton hole 2, and a rubber matrix material 3. the

The built-in ultra-high molecular weight polyethylene skeleton rubber shock-absorbing product is in the shape of a cube, with a total size of 600mm in length, 300mm in width, and 100mm in thickness; it adopts a 3-layer skeleton structure, the upper skeleton is 5mm away from the rubber surface, and the interval between each layer of skeleton is 20mm. the

The skeleton (1) has a hollow design of the skeleton hole (2) and is in the shape of a rectangular plate. The size of the skeleton (1) is 500mm in length, 260mm in width, and 15mm in thickness; the diameter of the holes in the skeleton on the surface is 40mm, and the number of holes is 9, which are symmetrically and evenly distributed along the length and width directions. the

The processing technology of the rubber shock-absorbing products with built-in ultra-high molecular weight polyethylene skeleton is the vulcanization molding process usually used in the production of rubber products. The rubber base material used is extruded into the required semi-finished unvulcanized rubber strip with a certain width and thickness after kneading and hot-melting, and then the UHMWPE skeleton with holes opened is layered and coated with the rubber base material ; When covering the rubber, it is necessary to fill the UHMWPE skeleton cavity, fill the rubber matrix material, and remove the internal air; after covering the rubber matrix material, put it into the vulcanization molding mold, at the specified temperature, Time and pressure complete the processing and molding of the built-in ultra-high molecular weight polyethylene skeleton rubber shock-absorbing product. the

The processed rubber shock-absorbing products with built-in ultra-high molecular weight polyethylene skeleton can withstand 50 tons per piece after the pressure test, which can fully meet the requirements for the use of rubber shock-absorbing products. the

Claims (5)

1. A rubber shock-absorbing product with a built-in ultra-high molecular weight polyethylene skeleton, characterized in that the rubber shock-absorbing product is in the shape of a cube, and three layers of skeletons (1) are placed in parallel inside it, and the skeleton has skeleton holes (2) Cutout design and rectangular plate shape. 2. The rubber shock-absorbing product with a built-in ultra-high molecular weight polyethylene skeleton according to claim 1, characterized in that, between and around the three-layer skeleton (1) built in the rubber shock-absorbing product, and the skeleton holes (2) ) are continuously filled with rubber matrix material (3). 3. The rubber shock-absorbing product with a built-in ultra-high molecular weight polyethylene skeleton according to claim 1, characterized in that, the skeleton (1) of the rubber shock-absorbing product is ultra-high molecular weight polyethylene formed by one-shot molding process The material has a molecular weight of 3 million to 5 million, a density of 0.93 to 0.94 g/cm ³ , a hardness of 60 to 80 Shore D, and a tensile strength of ≥30 MPa. 4. The rubber shock-absorbing product with a built-in ultra-high molecular weight polyethylene skeleton according to claim 1, characterized in that the holes (2) are evenly distributed on the surface of the skeleton (1), and the holes (2) can be molded on the skeleton (1) When forming, it is formed by a mold cavity with a columnar structure, and it can also be formed by post-processing. 5. The rubber shock-absorbing product with a built-in ultra-high molecular weight polyethylene skeleton according to claim 1, characterized in that, the vulcanization molding process commonly used in the production of rubber products is used to realize the skeleton (1) in the rubber base material (3) of the shock-absorbing product ) positioning and combination. the