Adjusting device for transverse movement of positions of holes of titling type oil cylinder

Abstract

The invention provides an adjusting device for transverse movement of the positions of holes of a titling type oil cylinder and belongs to the technical field of auxiliary equipment for railways. The adjusting device comprises a lifting and returning oil cylinder arranged obliquely, wherein a bearing bottom plate is arranged under the lifting and returning oil cylinder; two hole brackets are longitudinally welded on the bearing bottom plate; a plurality of rotary shaft holes are symmetrically formed in the hole brackets and are forwards opened; an obliquely-upward small-slope oblique plane is arranged between every two adjacent rotary shaft holes; a rotary shaft penetrates through the bottom part of the lifting and returning cylinder; the two ends of the rotary shaft are respectively provided with a roller; the rollers are arranged in the rotary shaft holes; and when the position of the lifting and returning oil cylinder is adjusted, the rollers can roll easily into next rotary shaft hole from the oblique plane. The adjusting device provided by the invention has the advantages that the appearance and the structure are simple; the surface of the bearing bottom plate does not need to be cut by a machine tool; the requirement for the whole processing accuracy is reduced; the working conditions of supporting points are not interfered by the external environment; the adjustment for position movement of the lifting and returning oil cylinder is stable and reliable; and numerous problems in the existing device are solved.

Description

technical field [0001] The invention relates to the technical field of railway auxiliary equipment, in particular to a tilting type oil cylinder hole position lateral movement adjustment device. Background technique [0002] At present, the recovery device used for track off-line rescue, especially the rescue equipment for high-speed trains and urban rail transit vehicles, its recovery point is the lower edge busbar of the wheel set axle, and the effective space under the axle after falling off the track is even lower than 230mm. Due to the low and narrow operating space environment, the design height of the oil cylinder is greatly restricted. Although the structure of multi-stage oil cylinder is adopted, the total lift is still not enough to lift the wheel with a derailment distance of more than 300mm into place at one time. The working order of the tilting oil cylinder is to displace the wheel horizontally until it is close to the rail and then lift it. This process is of...

AI Technical Summary

Problems solved by technology

like Figure 3-5 As shown, in the prior art, a one-way ratchet structure is used for remote readjustment of the position of the lifting cylinder, but there are still the following deficiencies: the processing of the ratchet 12 is complicated, the precision is high, labor-intensive and time-consuming, and the load-bearing floor is also made of This is prone to processing stress deformation; the thickness of the load-bearing floor 2 is reduced after the ratchet 12 is processed, which has a great impact on its strength, especially the bending strength, and the contact between the load-bearing floor 2 and the ground (usually with a ballast bed) is not real. Or when the soft ground is sunken after being stressed, it is very easy to cause the bottom plate to bend and deform; the ratchet 12 needs to be used in groups with the load-bearing bottom plate 2 and the rotary shaft support 14, and the requirements for the contact surface of the two are high, otherwise it will work at a small inclination angle of the lifting cylinder 1 when the support force is insufficient, it is easy to slip backward due to lack of support; there are tolerances in the ratchets 12 processed in different batches, and it is inevitable that bumps, deformations, and damage to the ratchets 12 will occur in field operations, or foreign matter is mixed in, which will also cause the contact surface to detach; Point is a rotary shaft 6 placed on the load-bearing base plate 2 through the rotary shaft support 14, the vertical height of the rotary shaft support 14 mounting holes, the thickness of the load-bearing base plate 2 itself and the height of the bottom reinforcement rib 13, determine the lifting cylinder 1 The height of the space position of the rotary shaft 6, the current device has no room for downward movement. As the piston of the lifting cylinder continues to move forward or even exhausted, the inclination angle with the ground is also continuously reduced until it is lower than the lower limit of 35°. The attempt to increase the effective height (increase the lift) of the hoisting cylinder 1 by the rotating shaft 6 has also stopped. At this time, the geometric position of the cylinder on the bottom plate must be readjusted to improve the working conditions

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