Front movable window slide rail of excavator cab

Abstract

The invention discloses a front movable window slide rail of an excavator cab. The front movable window slide rail is characterized in that: the slide way of the upper section of a left slide rail is in a horizontal state, and the deviation of the slide way is in a range of + / -5 degrees; the upper section of a right slide rail is in a horizontal state, and the deviation of the upper section is in a range of + / -5 degrees, so that the movable window device in failure can also be kept in an open state; the left slide rail, the front section of the right slide rail and the lower surface of the slide way at the bent position of the upper section are provided with notches; left and right brackets are arranged at the notches; cylindrical pulleys are respectively arranged at the front and rear ends of the left bracket, and a conical pulley is arranged in the middle of the left bracket; two sides of the left slide rail and the right slide rail are provided with flanges to increase the strength; the lower ends of the left slide rail and the right slide rail are provided with buffering bends; a balancer connecting rod is arranged at the joint of a balance pull rope and a front movable window; and a front movable window roller and a balancer roller are hinged on the balancer connecting rod. The front movable window slide rail has the advantages that: the movable window locking device in failure can also be kept in an open state, the front movable window slide rail is convenient to assemble and disassemble, and the balancer pull rope has long service life.

Description

Technical field [0001] The invention relates to a front movable window slide rail for an excavator cab, in particular to a front movable window slide rail for an excavator cab. Background technique [0002] At present, the upper section of the sliding rail of the front movable window of the excavator is inclined forward. When the locking device fails, the movable window cannot be kept open and will slide downward. The assembly and disassembly of the movable window are generally carried out from both ends of the slide rail. The balancer cable passes through the top of the cab and in front of the movable window, and the cable generates resistance when the movable window is closed. Summary of the invention [0003] The object of the present invention is to provide a sliding rail for the front movable window of an excavator cab that can maintain an open state even when the movable window locking device fails, is convenient to install and disassemble, and has a long service life of th...

AI Technical Summary

Problems solved by technology

[0002] At present, the upper part of the slide rail of the front movable window of the excavator is tilted forward. When the locking device fails, the movable window cannot be kept open and will slide down.

Images