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Energy-saving and reliable scraper hydraulic system

A hydraulic system and scraper technology, applied in the field of hydraulic systems, can solve the problems of low energy efficiency utilization rate of hydraulic pumps, high failure rate of oil cylinders, short service life, etc., to save low-pressure pilot pumps, reduce failure rates, and improve service life and reliability effects

Active Publication Date: 2021-03-30
SANSHANDAO GOLD MINE SHANDONG GOLD MINING LAIZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional hydraulic system of a scraper is often composed of a working system, a steering system, and a braking system. Each of the three systems uses one or two hydraulic pumps. The disadvantages are: (1) As long as one hydraulic pump has a problem, the scraper hydraulic The system will be shut down due to failure, and the reliability is poor; (2) Since the three systems operate in isolation, the energy efficiency of the hydraulic pump is low; The impact of the system, and the external impact caused by the uneven road surface and the rock's recoil on the bucket, etc., the failure rate of the oil cylinder is high and the service life is short

Method used

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  • Energy-saving and reliable scraper hydraulic system

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Embodiment Construction

[0037] The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

[0038] Such as figure 1 , an energy-saving and reliable hydraulic system of a scraper, including a power module, a brake hydraulic module 100 , a steering hydraulic module 200 and a lifting bucket working hydraulic module 300 , and also includes a steering sequence valve 12 and a working sequence valve 22 .

[0039] The power module includes an oil tank 1 containing hydraulic oil 2, a parallel hydraulic pump 4 for pumping the hydraulic oil 2, and a filter 3 and a connection between the oil tank 1 and the hydraulic pump 4. The main relief valve 5 at the output of the hydraulic pump 4 . When the P port pressure of the main relief valve 5 reaches 21 MPa, the main relief valve 5 is opened to ensure the safe operation of the hydraulic system.

[0040] The hydraulic pump 4 is a duplex plunger pump, which can be divided into two identical small hydraulic pum...

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Abstract

The invention discloses an energy-saving and reliable hydraulic system of a carry-scraper. The energy-saving and reliable hydraulic system comprises a power module, a brake hydraulic module, a turninghydraulic module and a lifting tipping bucket working hydraulic module and also comprises a turning sequence valve and a working sequence valve. The power module comprises a fuel tank and a hydraulicpump. An output end of the hydraulic pump is connected to an input end of the turning sequence valve, and an output end of the turning sequence valve is connected to an input end of the working sequence valve; the output end of the hydraulic pump is also connected to the brake hydraulic module, the output end of the turning sequence valve is also connected to the turning hydraulic module, and anoutput end of the working sequence valve is connected to the lifting tipping bucket working hydraulic module. The energy-saving and reliable hydraulic system achieves graded utilization and full utilization of hydraulic energy creatively through the two sequence valves and three energy accumulators, cancels a turning pump, a brake pump and the like which are independently arranged, and not only guarantees the reliability of the module systems, but also improves the utilization ratio the hydraulic energy of the hydraulic pump to a great extent.

Description

technical field [0001] The invention relates to a hydraulic system of a scraper. Background technique [0002] The traditional hydraulic system of a scraper is often composed of a working system, a steering system, and a braking system. Each of the three systems uses one or two hydraulic pumps. The disadvantages are: (1) As long as one hydraulic pump has a problem, the scraper hydraulic The system will be shut down due to failure, and the reliability is poor; (2) Since the three systems operate in isolation, the energy efficiency of the hydraulic pump is low; The impact of the system, and the external impact caused by the uneven road surface and the rock's recoil on the bucket, etc., the failure rate of the oil cylinder is high and the service life is short. Contents of the invention [0003] The invention proposes an energy-saving and reliable scraper hydraulic system, the purpose of which is to: (1) improve the reliability of the hydraulic system; (2) improve the utiliz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/16F15B13/06F15B1/02E02F9/22
CPCE02F9/22E02F9/225E02F9/2267E02F9/2292F15B1/024F15B11/16F15B13/06F15B2211/20546F15B2211/20576F15B2211/212F15B2211/71
Inventor 于鹏永杜云龙彭友杰吕德林李威汪姣妍孙小健施升涛韩文涛张春亮左汉勇
Owner SANSHANDAO GOLD MINE SHANDONG GOLD MINING LAIZHOU
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