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Hydraulic excavator device capable of achieving movable arm dead load offsetting

A technology of hydraulic excavators and booms, which is applied to mechanically driven excavators/dredgers, earth movers/shovels, construction, etc., which can solve the waste of excavator power, increase excavator exhaust emissions, and reduce excavator waste. Work efficiency and other issues

Pending Publication Date: 2019-02-22
程春雷
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  • Abstract
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Problems solved by technology

Among them, during the lifting and lowering process of the working device, the self-weight of the working device is often greater than the load, and the load capacity accounts for a small proportion of the output power of the excavator. Most of the power is consumed on the self-weight of the working device, thus wasting the power of the excavator and increasing the load. Reduce the exhaust emission of the excavator and reduce the operating efficiency of the excavator

Method used

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  • Hydraulic excavator device capable of achieving movable arm dead load offsetting
  • Hydraulic excavator device capable of achieving movable arm dead load offsetting

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Embodiment Construction

[0014] The embodiments of the present invention will be described below with reference to specific embodiments and accompanying drawings. Those skilled in the art can understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific examples, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0015] combine figure 1 and figure 2 , the hydraulic excavator device for offsetting the dead weight of the boom of the present invention includes:

[0016] The frame 13, the boom 2 connected to the frame 13.

[0017] One end of the rodless cavity of the boom cylinder 4 is installed on the frame 13, and the other end is connected to the boom 2 through its piston rod;

[0018] One end of the rodless cavity of one or m...

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Abstract

The invention discloses a hydraulic excavator device capable of achieving movable arm dead load offsetting. A rack and a movable arm connected with the rack are included. A movable arm oil cylinder and one to more nitrogen pressure spring cylinders are further included, wherein the rodless cavity end and a piston rod of the movable arm oil cylinder are arranged on the rack and the movable arm correspondingly, and the rodless cavity ends and piston rods of the nitrogen pressure spring cylinders are arranged on the rack and the movable arm correspondingly; a rodless cavity of each nitrogen pressure spring cylinder is connected with an energy accumulator through a pipeline so that the rodless cavity of the nitrogen pressure spring cylinder can be inflated with high-pressure nitrogen; and a rod cavity of the movable arm oil cylinder and one to more rod cavities of one to more nitrogen pressure spring cylinders are connected with hydraulic control equipment through parallel oil paths. The hydraulic excavator device achieves movable arm dead load offsetting, and the work efficiency of an excavator is improved.

Description

technical field [0001] The invention relates to the technical field of excavators, in particular to a hydraulic excavator device with a boom self-weight offset. Background technique [0002] The excavator is articulated by three parts: the boom, the stick, and the work tool. Generally, the working device of the excavator has a dead weight of more than several tons, and the dead weight of the working device of the excavator increases with the increase of the model of the excavator. [0003] Since the operation process of the excavator is controlled by the reciprocating double-acting hydraulic cylinder, the lifting and lowering of the working device, such as the lifting and lowering of the boom, the telescopic operation of the stick, and the work of the working tool, are used to complete the functions of excavation, lifting and loading and unloading. Among them, during the lifting and landing process of the working device, the self-weight of the working device is often greater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F3/32E02F3/42
CPCE02F3/32E02F3/425
Inventor 程春雷
Owner 程春雷
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