Hinge type bent positioning support

Abstract

The invention discloses a hinge type bent positioning support. The support consists of a bent connecting seat, an upper hoop, a limiting pipe and a positioner support; and the bent connecting seat iscomposed of a lower hoop, a supporting arm which is connected to the lower portion of the lower hoop and inclines downwards, and a positioning column connected to the lower end of the supporting arm.One side of the upper hoop is hinged to one side of the lower hoop through a pin, and the other side of the upper hoop is connected with the other side of the lower hoop through a bolt pair. The positioning column is inserted into the upper end of the limiting pipe, and the limiting pipe is fixed to the positioning column through rivets in the radial direction in a riveted mode. The positioner support is sleeved on the limiting pipe. The defects in the prior art are overcome.

Description

technical field [0001] The invention belongs to the technical field of electrified railway catenary component manufacturing, and in particular relates to a hinged bending type positioning support. Background technique [0002] The tension of contact wire and catenary cable of high-speed electrified railway is much higher than that of general line, and the corresponding lifting amount of pantograph and pull-out value of contact wire are higher than that of general line. The prior art closest to the present invention is "Bending Aluminum Alloy Positioning Support CN200920034075.6", although this support can meet the requirements of the large lifting amount and large pull-out value of the pantograph in terms of height and horizontal space. However, because the support adopts the "V" surface + U bolt connection form, forming point contact and stress concentration, it is easy to cause great damage to the part itself and the pipe, and the structural force is unreasonable. Moreove...

AI Technical Summary

Problems solved by technology

The prior art closest to the present invention is "Bending Aluminum Alloy Positioning Support CN200920034075.6", although this support can meet the requirements of the large lifting amount and large pull-out value of the pantograph in terms of height and horizontal space. The use requirements, but because the support adopts the "V" surface + U bolt connection form, forming point contact and stress concentration, it is easy to cause great damage to the part itself and the pipe, and the structural force is unreasonable.

Moreover, the connection between the support and the locator follows the traditional hook-and-loop connection structure, which not only has problems such as abnormal wear, gap discharge corrosion, and weak bearing capacity of the shackle, but also limits the horizontal rotation adjustment and vertical lift of the locator.

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