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Crushing oil return system and crushing mechanism and excavator

A technology of oil return system and crushing mechanism, which is applied in the field of hydraulic oil return, can solve the problems of large hydraulic shock and high failure rate, and achieve the effect of lower oil temperature, low failure rate, and not easy to oxidize and deteriorate

Pending Publication Date: 2017-12-15
SANY HEAVY MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a broken oil return system to solve the technical problem of high failure rate of the excavator broken oil return system due to large hydraulic shock in the prior art

Method used

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  • Crushing oil return system and crushing mechanism and excavator
  • Crushing oil return system and crushing mechanism and excavator
  • Crushing oil return system and crushing mechanism and excavator

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Embodiment Construction

[0042] 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. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0043] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0044] The crushing oil return system provided ...

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Abstract

The invention discloses a crushing oil return system, a crushing mechanism and an excavator so as to solve the technical problem that the crushing oil return system of the excavator in the prior art has a high failure rate due to large hydraulic impact. The crushing oil return system comprises a hydraulic oil tank, a main oil return system, an oil return pipeline and at least two branch pipelines, wherein the oil inlet of the oil return pipeline is connected to the main oil return system; first ports of the at least two branch pipelines are connected to the oil outlet of the oil return pipeline; and second ports of the at least two branch pipelines are connected to the hydraulic oil tank.

Description

technical field [0001] The invention relates to the technical field of hydraulic oil return, in particular to a crushing oil return system, a crushing mechanism and an excavator. Background technique [0002] The power source of the hydraulic breaker is the pressure oil provided by the pump station of the excavator or loader, which can more effectively clean up the floating stones and the soil in the rock crevices during the operation of excavating the foundation of the building. Wherein, the excavator includes an oil return system matched with the hydraulic breaker. [0003] In the prior art, all the return oil in the oil return line of the oil return system of the breaker installed on the excavator returns directly to the hydraulic oil tank, or all the return oil in the oil return line returns to the hydraulic tank after passing through the radiator, or returns to the hydraulic tank. All return oil in the oil pipeline returns directly to the main valve, and all hydraulic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/04E02F5/30
CPCF15B21/041F15B21/042F15B21/044E02F5/30
Inventor 王守伏尹满义马卫强郭文博刘启明程义鹏叶旺盛
Owner SANY HEAVY MACHINERY