Flow regulation type oil pumping system, hydraulic crushing system and excavator

A technology for flow regulation and oil cylinder adjustment, applied in the hydraulic field, can solve the problem of inability to meet the hydraulic oil supply flow demand of hydraulic drive attachments, and achieve the effect of increasing the inclination angle, ensuring the hydraulic flow demand, and improving work efficiency

Pending Publication Date: 2021-08-13
SANY HEAVY MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a flow regulating oil pump system, a hydraulic breaking system and an excavator, which are used to solve the problem that the existing single plunger pump cannot meet the hydraulic oil supply flow demand of the hydraulically driven attachment during the mine operation process. question

Method used

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  • Flow regulation type oil pumping system, hydraulic crushing system and excavator
  • Flow regulation type oil pumping system, hydraulic crushing system and excavator
  • Flow regulation type oil pumping system, hydraulic crushing system and excavator

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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] Combine below Figure 1 to Figure 3Describe a flow regulating oil pump system, hydraulic breaking system and excavator provided by the present invention.

[0035] Such as figure 1 As shown, the present embodiment provides a flow regulating oil pumping system, a hydraulic breaking system and an excavator. The flow regulating oil pumping system includes: a first plunger pump 1, a first...

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Abstract

The invention provides a flow regulation type oil pumping system, a hydraulic crushing system and an excavator. The flow regulation type oil pumping system comprises a first plunger pump, a first adjusting oil cylinder, a feedback oil cylinder and a flow regulation and control valve; a telescopic end of the first adjusting oil cylinder is rotationally connected with a first swash plate of the first plunger pump, an oil outlet end of the first plunger pump is used for being communicated with a hydraulic drive accessory, and a telescopic end of the feedback oil cylinder is rotationally connected with the telescopic end of the first adjusting oil cylinder; and the flow regulation and control valve controls the first plunger pump to output first flow or second flow, and the first flow is larger than the second flow. The inclination angle of the first swash plate is controlled through the flow regulation and control valve, the flow requirement of the hydraulic drive accessory is met, and the working efficiency of the hydraulic drive accessory is improved.

Description

technical field [0001] The invention relates to the field of hydraulic technology, in particular to a flow-adjustable oil pump system, a hydraulic breaking system and an excavator. Background technique [0002] In the process of traditional mining operations, explosives are often used to crush rocks. This blasting and crushing method has great safety hazards and environmental pollution. Therefore, using excavators equipped with hydraulic hammers to crush rocks is an alternative to the current A development trend of blasting and crushing operations in mines. [0003] During the large-scale crushing operation, the hydraulic breaker is installed at the execution end of the arm frame of the excavator, and the head end of the arm frame is installed on the slewing support of the excavator. Among them, the boom includes a first boom and a second boom, one end of the first boom is connected to the hydraulic breaker, the other end of the first boom is hinged to the second boom, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/17F15B13/06F15B13/16E02F5/30E02F9/22
CPCE02F3/966E02F9/2264E02F9/2267E02F9/2292F15B11/17F15B13/06F15B13/16F15B2211/20546F15B2211/20576F15B2211/78
Inventor 程义鹏刘启明俞豪杰
Owner SANY HEAVY MACHINERY
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