Improved connecting structure for front push rod and rear push rod of support

Abstract

The invention discloses an improved connecting structure for a front push rod and a rear push rod of a support, which comprises the front push rod and the rear push rod; double dual lugs which are vertically arranged are arranged on the right end of the front push rod, double lugs which are vertically arranged are arranged on the left end of the rear push rod, the front push rod is connected with the rear push rod through pin shafts vertically penetrating through through holes, the pin shafts adopt three-section detachable connection, i.e. a first pin shaft, a spacing pin and a second pin shaft, the spacing pin is fixed in the groove of a supporting base, and the first pin shaft and the second pin shaft are placed in the holes of the double dual lugs and the double lugs. Since the improved connecting structure adopts the vertical and downward sectioned pin shaft mounting method and the open type connecting double-lug structure, the front push rod and the rear push rod can be conveniently connected and assembled, the space occupied by assembly is reduced, the problems of inconvenient assembly, disassembly and maintenance, complex structure and joint damage caused by poor strength and rigidity in the prior art are effectively solved, the high rigidity and strength of connection between the front push rod and the rear push rod is realized, the joints cannot be easily damaged, and moreover, the improved connecting structure has the characteristics of simple and compact structure and convenience in disassembly and maintenance.

Description

technical field [0001] The invention belongs to the field of coal machinery, in particular to an improved connection device for front and rear push rods of a bracket which is easy to install and operate. Background technique [0002] The front and rear push rods of the existing bracket are connected. The front push rod is provided with a frame structure with front and rear levels and horizontal holes, and the rear push rod is provided with a thicker single connecting ear. Penetrate from the horizontal side into the connecting ear hole for connection and fixation. Because the pin shaft is long, there must be enough space for the pin shaft when piercing in. However, the span width of the bracket installation push rod is limited, which makes installation difficult, and the installation is large. For the installation of parts, it is necessary to continuously adjust the position of the front and rear push rods to realize the alignment of the through holes on the connecting ears o...

AI Technical Summary

Problems solved by technology

[0002] The front and rear push rods of the existing bracket are connected. The front push rod is provided with a frame structure with front and rear levels and horizontal holes, and the rear push rod is provided with a thicker single connecting ear. Penetrate from the horizontal side into the connecting ear hole for connection and fixation. Because the pin shaft is long, there must be enough space for the pin shaft when penetrating in. However, the span width of the bracket installation push rod is limited, which makes installation difficult, and the installation is large. For the installation of parts, it is necessary to continuously adjust the position of the front and rear push rods to realize the alignment of the through holes on the connecting ears of the front and rear push rods. Broken and damaged, inconvenient maintenance, unreliable connection

Images