Single-pump and double-motor open type hydraulic system for travelling mechanism of land leveler

A traveling mechanism, open hydraulic technology, applied in the direction of fluid pressure actuation system components, servo motors, servo motor components, etc., can solve the problems of high production, operation and maintenance costs, complex system design, etc., and achieve operation and maintenance costs. Low, simple and compact system design, easy to promote and use

Inactive Publication Date: 2014-05-28
XIAN ZHIYUE ELECTROMECHANICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hydraulic system used by most foreign grader traveling mechanisms is a closed hydraulic system. The closed hydraulic system detects and feeds back the output of the hydraulic motor, which largely eliminates or suppresses the influence of unfavorabl

Method used

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  • Single-pump and double-motor open type hydraulic system for travelling mechanism of land leveler

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Example Embodiment

[0024] Such as figure 1 A single-pump dual-motor open hydraulic system for the running mechanism of a grader shown includes a cartridge valve 1, a cartridge valve 2, 6, a cartridge valve three 7, a cartridge valve four 8 and a cartridge valve five 9. The C port of the cartridge valve 1 is connected to the overflow valve 4, the B port of the cartridge valve 2, the R port of the reversing valve 5, the D port of the cartridge valve 2 6 and the cartridge valve 4 8 J ports are all connected with the outlet of hydraulic pump 1, and the A port of the cartridge valve 1-2, the G port of the cartridge valve three 7, the M port of the cartridge valve five 9 and the outlet of the overflow valve 4 are all connected to the oil tank , The F port of the cartridge valve two 6 and the I port of the cartridge valve three 7 are both connected with the U port of the reversing valve 5, the L port of the cartridge valve four 8 and the P port of the cartridge valve five 9 They are all connected with ...

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Abstract

The invention discloses a single-pump and double-motor closed type hydraulic system for a travelling mechanism of a land leveler. A port B of a first cartridge valve, a port R of a reversing valve, a port D of a second cartridge valve and a port J of a fourth cartridge valve are communicated with an outlet of a hydraulic pump. A port A of the first cartridge valve, a port G of a third cartridge valve, a port M of a fifth cartridge valve and an outlet of a relief valve are communicated with an oil tank. A port F of the second cartridge valve and a port I of the third cartridge valve are communicated with a port U of the reversing valve, a port L of the fourth cartridge valve and a port P of the fifth cartridge valve are communicated with a port T of the reversing valve, and a port E of the second cartridge valve, a port N of the fifth cartridge valve, a port X of a first hydraulic motor and a port Q of a second hydraulic motor are communicated, and a port H of the third cartridge valve, a port K of the fourth cartridge valve, a port Y of the first hydraulic port and a port V of the second hydraulic motor are communicated. The single-pump and double-motor closed type hydraulic system has the advantages of simplicity and compactness in design, capability of greatly improving quality of hydraulic oil in the system, adaptability to severe working environments, introduction of the cartridge valves, low cost in production, operation and maintenance, and convenience in popularization and use.

Description

technical field [0001] The invention belongs to the technical field of construction machinery and relates to a hydraulic system, in particular to a single-pump and double-motor open hydraulic system for a motor grader traveling mechanism. Background technique [0002] A motor grader is a self-propelled wheeled earthmoving machine, which uses scrapers installed between the front and rear axles of the machine and various other auxiliary operating devices for shaping and leveling operations in earthworks. The grader is a high-speed, high-efficiency, high-precision and multi-purpose construction machine, which is widely used in large-scale ground construction such as roads, farmland, and airports. The main operations include ground leveling, trenching, scraping, and bulldozing It is an indispensable and important machine in the construction of the national economy. [0003] In the second half of the 20th century, with the development of hydraulic technology, hydraulic technolog...

Claims

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Application Information

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IPC IPC(8): F15B11/16F15B13/02F15B21/04B60K17/10
Inventor 武道
Owner XIAN ZHIYUE ELECTROMECHANICAL TECH
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