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Split sealing structure for piston core of loader booster pump

A technology of sealing structure and booster pump, which is applied in the direction of hydraulic brake transmission, etc., can solve the problems of easy fatigue damage of seals, insufficient braking pressure, and reduced braking force, so as to reduce the cost of maintenance parts, improve efficiency, The effect of reducing maintenance costs

Inactive Publication Date: 2016-08-10
SHANDONG LINGONG CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a split sealing structure for the piston core of the afterburner pump of the loader, so as to overcome the fatigue damage of the seal in the piston core of the afterburner pump of the loader in the prior art, which causes insufficient braking pressure and reduces the braking force. Defects as small as loss of braking

Method used

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  • Split sealing structure for piston core of loader booster pump
  • Split sealing structure for piston core of loader booster pump
  • Split sealing structure for piston core of loader booster pump

Examples

Experimental program
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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing.

[0018] Such as Figure 1 to Figure 4 As shown, a loader afterburner pump piston core split seal structure, including piston core 1, seal 2 and piston 3, piston core 1 is provided with a seal groove 7 to cooperate with seal 2, piston core 1 and seal Part 2 adopts a split seal structure, that is, the piston core 1 and the seal 2 are two independent structures, which can be replaced separately when damaged, and the seal groove 7 and the seal 2 are interference fit, and the cut-off of the seal groove 7 The area is larger than the cross-sectional area of ​​the sealing member 2 to ensure that the sealing member 2 has a reasonable filling rate and compression rate; wherein, the sealing member 2 is an O-shaped or D-shaped or rectangular structure.

[0019] Such as Figure 5 As shown, when the loader is operating under the service brake, the compressed air pushes the air piston 6 ...

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PUM

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Abstract

The invention discloses a split sealing structure for a piston core of a loader booster pump, which belongs to the field of engineering machinery. It includes a piston core, a seal and a piston. The piston core is provided with a seal groove that cooperates with the seal. The piston core and the seal adopt a split seal structure, and the seal groove and the seal are interference fit. , and the cross-sectional area of ​​the sealing groove is greater than that of the seal to ensure that the seal has a reasonable filling rate and compression rate. The invention is applied to the seal between the piston and the piston core of the afterburner pump of the loader, solves the problem that the piston core seal of the afterburner pump is easily crushed, and reduces the manufacturing cost and maintenance cost of the piston core and the piston core seal.

Description

technical field [0001] The invention belongs to a sealing structure of an afterburner pump, in particular to a split sealing structure of a piston core of an afterburner pump of a loader. Background technique [0002] The brake system of the loader is used for deceleration or parking conditions during driving to meet the needs of the whole machine operation or transition. The working conditions of the loader are very bad, and the frequent forward and backward movements in the operation process require brake coordination. Therefore, the sealing performance of the brake system is directly related to the normal work and production efficiency of the whole machine, especially the property of the whole machine and the driver. life safety. Therefore, the reliability of braking is particularly important. [0003] At present, domestic loaders generally use caliper disc dry brake calipers as the actuator of the braking system. Taking a 5T loader as an example, the working pressure o...

Claims

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Application Information

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IPC IPC(8): B60T11/16
CPCB60T11/16
Inventor 董立队李强王世东朱博刘震罗明牛肇
Owner SHANDONG LINGONG CONSTR MACHINERY
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