Brake for hydrostatic drive

A brake and hydrostatic technology, applied in the direction of brake actuators, gear transmission mechanisms, mechanical equipment, etc., can solve the problems of complex processing, assembly and maintenance of brakes, easy wear and tear of pistons, etc., and achieve convenient processing, assembly and maintenance, and lubrication Good effect, reducing piston sticking and wear

Active Publication Date: 2017-01-04
GUANGXI LIUGONG MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a brake for hydrostatic transmission, which can solve the problems of complex processing, assembly and maintenance of the brake, easy wear of the piston and high cost

Method used

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  • Brake for hydrostatic drive
  • Brake for hydrostatic drive
  • Brake for hydrostatic drive

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0027] figure 1 It is a schematic diagram of an existing Rexroth travel deceleration mechanism. As mentioned in the above background technology, this kind of brake has the problems of complicated processing, assembly and maintenance, easy wear of the piston and high cost.

[0028] figure 2 with image 3 The brake used for hydrostatic transmission includes a cylinder body 2, a piston assembly 3 and a power take-off shaft 1 installed in the cylinder body 2; as Figure 4 As shown, the power take-off shaft 1 includes a left end internal spline 1-1 for connecting the input part of the hydraulic motor, a right end internal spline 1-2 for connecting the output part of the reduction gear, and a brake for connecting the friction pair. Part of the top splines 1-3; the two sides of the top splines 1-3 are fitted with limit retaining rings 18, and the power take-off shaft...

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Abstract

The invention discloses a brake for hydrostatic drive, and relates to engineering machinery field. The brake comprises cylinder body, piston group, and power take-off shaft having left-end internal spline, right-end internal spline and top-end spline connected with friction pair, wherein the stop collar is set on the both side of the top-end spline; the friction pair comprises friction plate and steel sheet, and the pressure-bearing disc is set on the both sides of the friction pair; a steel bushing is connected with one end of the cylinder body, and the gland is pressing and jointing with the end face of the steel bushing; a spring is installed in the inner side of the gland, one end of the spring is pressing and jointing with the gland, and the other end of the spring is pressing and jointing on the pressure-bearing disc; the cylinder has oil path hole and oil cavity, the piston group comprises piston and push rod, one end of the push rod is connected with the piston, and the other end of the push rod is installed in the groove of the pressure-bearing disc; the friction plate and pressure-bearing disc is connected with the steel bushing through the spline inside the steel bushing, and the steel sheet is connected with the power take-off shaft through the top-end spline. The invention can solve the problems such as complex brake processing, assembly and maintenance, easy-to-wear and high cost of the piston.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a brake used in hydrostatic transmission components. Background technique [0002] The brake used in the hydrostatic transmission parts of construction machinery, its main function is to connect the output part of the motor in the transmission system and the input part of the travel reduction device, so as to achieve fast braking response. Such as figure 1 The one shown is a brake called "Rexroth travel deceleration mechanism". The brake is integrated in the travel deceleration mechanism, and the brake cylinder block with connecting splines is the travel deceleration device housing. The piston is ring-shaped and arranged outside the connecting spline, one end of which is offset against the brake spring, and the end of the piston rod at the other end is offset against the brake friction plate group. The brake is normally closed, and the friction pair is in a combin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/14F16D121/04F16D125/02F16D125/06F16D125/08
CPCF16D65/14F16D2121/04F16D2125/02F16D2125/06F16D2125/08
Inventor 明君剑陈素姣鄢万斌黄晓艳
Owner GUANGXI LIUGONG MASCH CO LTD
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