Cantilever type coal cutter rocking arm

Abstract

The invention discloses a cantilever type coal cutter rocking arm, and belongs to the technical field of coal cutters. The cantilever type coal cutter rocking arm comprises a rocking arm shell, a cutting motor, a height adjusting gear pump, a gear transmission system, a clutch, an inner fog system, an outer fog system, a motor protective cap and a motor protecting cover, wherein the cutting motor is fixed on the rocking arm shell through a bolt, and the cutting motor is connected with the gear transmission system through the clutch; the height adjusting gear pump is arranged on the gear transmission system, the motor protective cap and the motor protecting cover are arranged outside the cutting motor, a cable, an oil pipe and the height adjusting gear pump; and a water channel of the inner fog system is a rigid channel, and oil drain holes are formed in the side surface and the bottom surface of the rocking arm. The cantilever type coal cutter rocking arm provided by the invention has the beneficial effects that the overall structure is compact, the change and disassembly and assembly of the motor are convenient, the inner and outer fog systems are safe and reliable, the temperature of a rocking arm gear box can be effectively reduced, and the oil drain is convenient; and the height adjusting gear pump is placed on the rocking arm, the length of a coal cutter is effectively reduced, the support is easy, and a water pipe is prevented from being damaged.

Description

technical field [0001] The invention relates to a rocker arm of a cantilever type coal shearer, which belongs to the technical field of coal shearers. Background technique [0002] At present, the rocker arm structure of the shearer mainly includes the rocker arm shell, cutting motor, cable, gear transmission system, clutch, internal spraying system, external spraying system, etc., and the cutting motor is installed from the side of the old pond. ,Such as Figure 5 shown. The conventional rocker arm structure has the following problems: 1. The cutting motor is installed from the side of the old pond, which is inconvenient to replace; 2. The height-adjusting gear pump is installed in the middle box, which increases the length of the fuselage and increases the height of the bracket. The roof control area increases the difficulty of support; 3. The water entering the internal spray system is transported through the external water pipe, which is easy to damage the water pipe; 4...

AI Technical Summary

Problems solved by technology

The conventional rocker arm structure has the following problems: 1. The cutting motor is installed from the side of the old pond, which is inconvenient to replace; 2. The height-adjusting gear pump is installed in the middle box, which increases the length of the fuselage and increases the height of the bracket. The roof control area increases the difficulty of support; 3. The water entering the internal spray system is transported through the external water pipe, which is easy to damage the water pipe; 4. The underground working conditions are complicated, and the temperature of the rocker oil tank is generally relatively high. In addition to cooling the temperature through the water of the internal and external spray systems, the cutting part does not have a special cooling device, and the cooling effect is not ideal

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