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Elastic piston, pumping system and engineering machinery

A technology of elastic piston and pumping system, which is applied to the components, mechanical equipment, pump components, etc. of the pumping device for elastic fluid, which can solve the problems of elastic seal wear, increased wear, elastic piston failure, etc.

Active Publication Date: 2016-06-22
SANY AUTOMOBILE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. In the initial stage of use, the interference between the elastic piston and the delivery cylinder is relatively large, and the radial pressure between the elastic piston and the delivery cylinder is relatively large, resulting in wear and serious heat generation of the elastic sealing body
Severe heat generation will easily lead to premature coking and aging of the elastic sealing body, which will further aggravate wear and eventually cause premature failure of the elastic piston
[0005] 2. During use, the interference between the elastic piston and the delivery cylinder gradually decreases, eventually resulting in a gap between the elastic piston and the inner wall of the delivery cylinder, which will also cause premature failure of the elastic piston

Method used

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  • Elastic piston, pumping system and engineering machinery
  • Elastic piston, pumping system and engineering machinery
  • Elastic piston, pumping system and engineering machinery

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Embodiment Construction

[0027] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. Attached below Figures 1 to 4 Specific examples of the present invention will be described in detail.

[0028] On the one hand, the specific embodiment of the present invention proposes an elastic piston 40, such as figure 1 As shown, it includes a piston body 1 and an elastic sealing body 2; the elastic sealing body 2 is provided with a pressure charging chamber 3, and the piston body 1 is provided with a pressure charging channel 4 communicating with the pressure charging chamber 3. When the elastic piston 40 is in use, liquid or gas can be filled into the pressurized chamber 3 as required, so that the elastic sealing body 2 and the cylinder (the cylinder here can be the delivery cylinder 50 or the piston of the oil cylinder) The inner wall of the cylinder) maintains a tight fit, while preventing the elas...

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Abstract

The present invention provides an elastic piston, which includes a piston body and an elastic sealing body; the elastic sealing body is provided with a pressure charging chamber, and the piston body is provided with a pressure charging channel connected with the pressure charging chamber. Compared with the prior art, the elastic piston has longer service life and better use effect. In addition, the invention also proposes a pumping system and construction machinery with the elastic piston.

Description

technical field [0001] The invention relates to engineering machinery, in particular to an elastic piston; in addition, it also relates to a pumping system and engineering machinery with the elastic piston. Background technique [0002] At present, pumping machinery (such as pump trucks, vehicle-mounted pumps, etc.) for pumping materials has been widely used in engineering construction. Among these pumping machines, the pumping system is one of their core components. Generally, a pumping system includes a main cylinder, a delivery cylinder and an elastic piston; the elastic piston is slidably arranged in the delivery cylinder and connected with the piston rod of the main cylinder; the working process of the pumping system is: when the piston rod is retracted, The conveying cylinder sucks in the material, and when the piston rod is stretched out, the material is pumped out from the conveying cylinder under the push of the elastic piston. [0003] In order to prevent the mat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B53/14F04B53/02
CPCF04B53/02F04B53/14
Inventor 付杰勤胡任韩丽丽
Owner SANY AUTOMOBILE MFG CO LTD