Year1
- 承载力：
- 300KN-80000KN
- 摩擦系数：
- u≤0.03（-25°C~+60°C）
- 位移量：
- （±5~±1500）mm
Hengshui Haotong Engineering Rubber Co., Ltd., formerly Hengshui Haokun Engineering Rubber Factory, was founded in 2001 and covers an area of It covers an area of 8,500 square meters and currently has 156 employees, including 38 professional and technical personnel. Our company is a key manufacturer specializing in the production of rubber products and supporting products for transportation facilities. Its leading products have formed bridge expansion joints, modular expansion joints, comb-tooth plate expansion joints, bridge guardrail brackets, bridge bearings, basin-type rubber bearings, plate-type rubber bearings, spherical bearings, grid supports, and other bridge and water-stop rubber products. There are several major categories, including more than 20 product series and more than 1,500 varieties. Our company's products are widely used in various bridge and tunnel projects such as highways and railways across the country, as well as large-scale engineering projects such as power plants, water plants, and sewage treatment plants. The company always adheres to the core of improving quality and strengthening management, adheres to the economic principle of integrity and development, and establishes a scientific and complete quality management and guarantee system. The company wholeheartedly hopes for the trust, support and cooperation of friends from all walks of life. Through full cooperation with new and old customers, the company will serve the motherland's transportation and construction industry with high-quality products and strive to revitalize our country's economy.
Features and functions of a grid sliding bearing
The grid sliding ball bearing consists of an upper seat plate, a lower seat plate, a convex middle plate and two different shapes of polytetrafluoroethylene Composed of vinyl fluoride board. There is a concave spherical surface in the middle of the lower seat plate, which corresponds to the convex middle plate. There is an arc-shaped PTFE plate lined between the two, and the spherical surface slides with it to meet the rotation of the beam end. The sliding grid of the upper seat plate of the ball bearing The stainless steel plate and another PTFE plate on the middle steel plate form a second sliding surface to complete the expansion and contraction displacement of the beam due to various factors such as temperature difference.
The spherical sliding bearing has reliable force transmission and consistent rotation performance in all directions. The grid sliding ball bearing not only has the characteristics of large load-bearing capacity and large horizontal displacement of the basin-type rubber bearing, but also can adapt to the needs of large turning angles. , suitable for wide bridges and curved bridges. Since the pressure-bearing parts do not use rubber parts, there is no impact of low-temperature brittle aging of rubber, so it is especially suitable for low-temperature areas.
Advantages of the second grid sliding bearing support
The grid sliding ball bearing adopts surface contact, which has a large contact surface, low pressure, and uniform force transmission, so it is small in size and requires a small amount of steel.
The grid sliding ball bearing is small in size and low in height. Its mechanical calculation diagram is consistent with the overall calculation diagram, which will not cause or reduce the error between the mechanical calculation model and the actual structure.
The sliding ball bearing of the grid frame can be universally loaded, which can withstand pressure, pullout force, and shear force in any direction. The size of the force can be designed according to requirements. The general series products are ~. In continuous beam bridges, curved bridges, the corners of large grids, and temporary loads generated during construction, the bearings will produce pull-out forces. Other types of supports cannot withstand excessive pull-out forces and shear forces.
The sliding ball bearing of the grid frame can rotate in all directions, and the inside is a ball dumpling, so it can rotate in all directions. The size of the rotation angle can be designed according to engineering requirements. The rotation of the sliding bearing can generally be in arc. This function is most suitable for wide bridges, ramp bridges, inclined plane bridges and spatial structures
Types of three-frame sliding bearings
There are several forms of grid supports on the market today, from road basin type The grid support product transformed from the rubber bearing slightly adjusts the structure of the upper support plate and the bottom basin of the support to achieve the tensile strength and horizontal force resistance of the support.
The angle of this type of product is small, generally 10 degrees, and the support contains rubber parts, so the service life should be clearly required.
There are also grid support products converted from spherical bearings. These products have relatively large corner angles and relatively uniform force-bearing surfaces, without causing force necking. The upper and lower seat plates of the support are connected together using the chuck structural principle of the pressure cooker to achieve the support's resistance to vertical tension and horizontal force. This type of support is a mainstream product in the current market.
Components such as leaf springs or polyurethane springs can also be added to this type of support to achieve special requirements such as the horizontal stiffness of the support.
There are also grid products made using the principle of spherical hinges. The rotation angle of these products is generally 10 degrees, and the resistance to horizontal force is relatively large. However, the friction coefficient of the spherical hinge surface is slightly larger, so you should pay attention to it. In recent years, spherical bearing supports have also been developed. The rotation of the spherical bearing time node is placed in the support. The rotation of this kind of support is flexible, but the displacement is subject to certain restrictions.
★The above is a brief introduction to this product. If you have any questions, please call us. Inquiry phone★
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