Straddle type monorail transit track beam spherical steel support

Abstract

A straddle type monorail transit track beam spherical steel support comprises an upper anchorage unit, tensile and compressive rotating mechanisms, a base, a bottom plate, a support horizontal adjusting mechanism and a lower anchorage unit; multiple tensile and compressive rotating mechanisms are arranged between the upper anchorage unit and the base; the lower anchorage unit is connected with thebottom plate at the upper part and the support horizontal adjusting mechanism; and the base capable of performing horizontal adjustment by using the support horizontal adjusting mechanism is arrangedon the upper surface of the bottom plate. According to the straddle type monorail transit track beam spherical steel support, the structure is simple, the operation is convenient, the loading and unloading are convenient, the size of a support is effectively reduced, the weight of the support is reduced, the cost can be preferably reduced, the application range is enlarged, better transverse anti-bending capacity is realized, the running safety is effctively guaranteed, the additional force to a bridge is smaller, and the straddle type monorail transit track beam spherical steel support is beneficial for guaranteeing the service life of the bridge.

Description

technical field [0001] The invention relates to the technical field of a straddle type monorail traffic track beam support, in particular to a straddle type monorail traffic track beam spherical steel support. Background technique [0002] At present, the country is vigorously developing urban rail transit. Among them, the straddle monorail will be widely used in the future because of its advantages such as low noise, strong climbing ability, small turning radius, fast and convenient, small footprint, low cost, and no terrain restrictions. A kind of rail transit. [0003] The existing straddle-type monorail beam bearing adopts the pin-shaft cast steel bearing, which not only needs to bear the vertical pressure transmitted by the beam body like the conventional bridge bearing, but also bears the tensile force, and the disturbance of the wind, the Bending, shearing, torsion and other loads generated by centrifugal force and seismic force are transmitted to the lower pier stru...

AI Technical Summary

Problems solved by technology

[0004] The existing pin-type cast steel monorail support can meet the above requirements, but it still has some shortcomings, such as: 1. The pin shaft of the movable support and its matching pair are in line contact and are guaranteed by the rack and pinion. It rotates and slides in a balanced manner. In order to reduce the contact stress, this structure needs to make the diameter of the pin shaft relatively large and use high-hardness materials. Line contact is easy to damage the surface of the pin shaft.

The linear contact stress limits the design of the support, making the support bulky. In order to increase the allowable contact stress of the material, relatively high-cost materials are also used, which increases the cost of the support. 2. The hem and lower part of the traditional pin cast steel support The structure is connected by four anchor bolts. There is an anchor box outside the anchor bolt. The anchor box is poured in concrete, which is not convenient for inspection and replacement of anchor bolts.

And the frequent accumulation of water in the anchor box reduces the service life of the support. 3. The traditional pin-type cast steel monorail support uses cast steel material, which is difficult to control in quality and causes greater environmental pollution.

4. The friction force of the traditional sliding pin-type monorail bearing is 0.1, which exerts a greater additional force on the inside of the bridge, which is not conducive to the force of the bridge

5. The construction and maintenance of traditional pin cast steel bearings are difficult, and the cost performance is low

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