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Excavator boom energy regenerating device and boom energy regenerating valve block thereof

A technology of energy regeneration and motorized arms, which is applied to earth movers/shovels, construction, etc., can solve the problems of low efficiency and high energy consumption of excavators, and achieve the effect of reducing energy consumption and improving the operating efficiency of excavators

Active Publication Date: 2014-09-17
XCMG CONSTR MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the embodiments of the present invention is to provide an excavator arm energy regeneration device and its arm energy regeneration valve group to solve the problems of high energy consumption and low efficiency of the excavator

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  • Excavator boom energy regenerating device and boom energy regenerating valve block thereof
  • Excavator boom energy regenerating device and boom energy regenerating valve block thereof
  • Excavator boom energy regenerating device and boom energy regenerating valve block thereof

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0025] figure 1 It is a structural schematic diagram of an embodiment of the excavator arm energy regeneration device of the present invention. Such as figure 1As shown, the excavator arm energy regeneration device of this embodiment includes: a power oil circuit 1 connected to the oil tank 6, a pilot oil circuit 2, a loading oil circuit 3, a boom energy regeneration valve group 4, and an oil return circuit 5. The boom energy regeneration valve group 4 has six o...

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Abstract

The invention discloses an excavator boom energy regeneration device and a boom energy regeneration valve group thereof, and relates to the technical field of excavators. The excavator arm energy regeneration device includes: power oil circuit, pilot oil circuit, loading oil circuit, boom energy regeneration valve group, and oil return circuit. The working speed of the boom, when the pilot pressure reaches the first preset value, the hydraulic oil in the small chamber of the boom cylinder controlled by the fourth oil port flows into the large boom cylinder between the power oil circuit and the loading oil circuit through the first oil port cavity for regeneration. The invention recognizes the operating speed of the boom through the change of the pilot pressure, activates the energy regeneration function of the boom after the pilot pressure reaches a preset value, regenerates hydraulic oil in the small chamber of the boom oil cylinder, reduces the energy consumption of the excavator, and improves the working efficiency of the excavator.

Description

technical field [0001] The invention relates to the technical field of excavators, in particular to an excavator boom energy regeneration device and a boom energy regeneration valve group thereof. Background technique [0002] As an efficient earth-rock construction machine, hydraulic excavators occupy an important position in the construction machinery industry. The hydraulic multi-way valve is the core of the excavator, and its performance directly affects the performance and quality of the excavator. [0003] Excavators currently on the market do not have boom energy regeneration function, the lack of boom energy regeneration function, so that a part of the excavator boom operation cycle can be recovered and the energy is wasted in the form of overflow, which increases the heat dissipation system The load reduces the service life of the hydraulic multi-way valve, resulting in high energy consumption and low efficiency of the excavator. [0004] However, many countries i...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F9/22
Inventor 孙辉斯塔门赵斌翟海燕杨涛黄飞王钦
Owner XCMG CONSTR MACHINERY
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