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Autonomous operation device of bulldozer scarifier, and bulldozer including autonomous operation device

A technology for operating devices and bulldozers, which is applied to earth movers/shovels, mechanically driven excavators/dredgers, construction, etc., and can solve problems such as poor intelligence, uncertainty, and hysteresis of rippers

Inactive Publication Date: 2020-07-07
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The current ripper has poor intelligence, and the general driver relies on hearing and vision to judge the working status of the ripper, which has hysteresis and uncertainty

Method used

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  • Autonomous operation device of bulldozer scarifier, and bulldozer including autonomous operation device
  • Autonomous operation device of bulldozer scarifier, and bulldozer including autonomous operation device
  • Autonomous operation device of bulldozer scarifier, and bulldozer including autonomous operation device

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Embodiment Construction

[0020] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0021] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the invention clearly states otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, their Indicate the presence of features, steps, operations, means, components and / or combinations thereof;

[0022] For the convenience of description, if the words "up", "down", "left" and "right" appear in th...

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Abstract

The invention discloses an autonomous operation device of a bulldozer scarifier, and a bulldozer including the autonomous operation device. The autonomous operation device comprises a ripping tooth, alifting oil cylinder, and an inclined oil cylinder; the lifting oil cylinder controls digging depth of the ripping tooth, and the inclined oil cylinder controls an inclination angle of the ripping tooth; when the scarifier performs operation, a control system locks an oil circuit of the lifting oil cylinder, thereby providing greater cutting force for the ripping tooth; when working stress on theripping tooth is changed, the pressure of the lifting oil cylinder is changed, a force-bearing condition of the scarifier is reflected through the change of the pressure, and a pressure sensor monitors the change of the pressure in real time; when the pressure is higher than or lower than the preset value range, the control system controls the lifting oil cylinder to lift and descend the rippingtooth, the working efficiency of the scarifier is prevented from being affected by excessive or undersized stress on the ripping tooth; and a displacement sensor detects an expansion amount of the lifting oil cylinder, the inclined oil cylinder takes an action to adjust the inclination angle of the ripping tooth so as to maintain the optimum cutting posture.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to an autonomous operating device for a ripper of a bulldozer and a bulldozer including the device. Background technique [0002] As a kind of construction machinery, bulldozers can complete various construction tasks with high efficiency and high quality, and play an extremely important role in the construction industry. The control type is to obtain the surrounding working condition information through various sensors and perform a series of actions by the control system for decision-making processing, which is also the main research direction at present. [0003] The ripper is an important working part on the bulldozer. It can also be called the tail hook. There are single teeth and three teeth. The ripper is generally installed at the tail of the bulldozer. Its function is to force the ripper teeth into the soil through the hydraulic cylinder, relying on the hydrau...

Claims

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Application Information

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IPC IPC(8): E02F3/815E02F3/85E02F5/32
CPCE02F3/815E02F3/8155E02F3/84E02F3/844E02F3/845E02F5/32
Inventor 董全成李明春曹树坤张成梁孙选周广存
Owner UNIV OF JINAN
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