A floating gravity support device at the end of a coal shearer guide shoe

Abstract

The invention discloses a floating gravity support device at the end of a guide slip shoe of a coal cutter. The floating gravity support device comprises a guide slip shoe (10) and gravity support hydraulic cylinders (4), wherein the guide slip shoe (10) slides in a walking pin row (9); a hydraulic cylinder fixing seat (3) is composed of walking parts, a connection block (11) and an extension section (31) of the connection block (11); the walking parts are arranged on two sides of the walking part housing (1); the connection block (11) is connected with a coal cutter body; the upper ends of the gravity support hydraulic cylinders (4) are respectively arranged on two sides of the hydraulic cylinder fixing seat (3) through hinges (2); support slip shoes (8) are also arranged on two sides of the guide slip shoe (10), and slide on the walking pin row through the support slip shoes; the upper ends of the support slip shoes penetrate through the guide slip shoe and are connected with the lower ends of the gravity support hydraulic cylinders. According to the floating gravity support device, walking wheels are shared or even replaced with the floating gravity support device to support the gravity of the coal cutter; the contact stress between a transmission wheel and a walking wheel and between the walking wheel and a pin tooth is reduced, so that the plastic deformation of various wheel contact surfaces and meshing wear of various wheels are reduced; and the service life of the walking wheels is prolonged.

Description

technical field [0001] The invention relates to a coal shearer gravity support device, in particular to a coal shearer guide sliding shoe end floating gravity support device, which belongs to the technical field of coal shearers. Background technique [0002] The "Eleventh Five-Year Plan" of the coal industry requires that the degree of mechanization of coal mining should be significantly improved, and the production technology level of the coal industry should be significantly improved. This requires the coal machinery industry to step up research and development of mining machinery suitable for the modern mining environment on the one hand, master advanced technologies with independent intellectual property rights, and break the situation where foreign companies dominate the high-end coal machinery market; problems with machinery. Solving the problems existing in the existing mining machinery also has important reference significance for the research and development of ne...

AI Technical Summary

Problems solved by technology

This kind of fault maintenance requires the disassembly of large parts of the equipment to replace parts, which is time-consuming and laborious, and has a great impact on coal mining

Images