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Loader working device reset system

A working device and position limiting technology, which is applied to earth movers/shovels, mechanically driven excavators/dredgers, construction, etc., can solve problems such as difficulty in adjusting the limit of working devices of loaders, and achieve simple structure, Improved work efficiency and easy installation

Active Publication Date: 2020-01-07
GUANGXI LIUGONG MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a loader working device reset system that facilitates the adjustment of the limit position in view of the difficulty in adjusting the limit position of the existing loader working device

Method used

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  • Loader working device reset system
  • Loader working device reset system

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Embodiment Construction

[0017] The specific implementation will be described below in conjunction with the accompanying drawings.

[0018] The reset system of the loader working device in the present invention is as follows: figure 1 , figure 2 image 3 and Figure 5 As shown, it includes a bucket limit relay 7 whose contact terminal is connected in series with the electromagnetic coil 8 of the rotary bucket pilot valve and a circuit in which the contact terminal is connected in series with the electromagnetic coil 6 of the boom pilot valve. Boom limit relay 5 on the top, bucket cylinder ultrasonic monitoring module 4 for detecting the extension of the piston rod of the bucket cylinder, and an ultrasonic monitoring module 3 for the boom cylinder used to detect the extension of the piston rod of the boom cylinder in the working device, The bucket oil cylinder limit setting switch 22 is connected with the ultrasonic monitoring module 4 of the bucket oil cylinder for setting the upper limit and the ...

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Abstract

The invention relates to loading machine limiting and provides a reset system for a working device of a loading machine to solve the problem that limiting and adjusting of the working device of the loading machine are difficult. The reset system for the working device of the loading machine comprises a rotating bucket pilot valve attraction electromagnetic coil, a rotating bucket limiting relay, amovable arm pilot valve attraction electromagnetic coil, a movable arm limiting relay, a rotating bucket oil cylinder ultrasonic monitoring module, a movable arm oil cylinder ultrasonic monitoring module, a rotating bucket oil cylinder limiting set switch and a movable arm oil cylinder limiting set switch. The upper limiting values and the lower limiting values of the extending amounts of a movable arm oil cylinder and a rotating bucket oil cylinder are set through the rotating bucket oil cylinder limiting set switch and the movable arm oil cylinder limiting set switch. When the extending amounts of the movable arm oil cylinder and the rotating bucket oil cylinder are within the range, the rotating bucket oil cylinder ultrasonic monitoring module and the movable arm oil cylinder ultrasonic monitoring module output electric potentials to electrify the pilot valve attraction electromagnetic coils so that a pilot handle can keep attraction, otherwise, the pilot handle is disconnected, and automatic reset of the working device of the loading machine is achieved.

Description

technical field [0001] The invention relates to a loader working device, more specifically, to a loader working device reset system. Background technique [0002] At present, the control of the working device of the loader is divided into bucket limit and boom limit. The control of the revolving bucket is mainly to control the leveling position of the bucket through the proximity switch. When the proximity switch fails to sense the induction plate, the proximity switch stops outputting, the relay operates, and the handle is closed and disconnected; the limit control of the boom is mainly controlled through the proximity switch. At the highest position of the boom lift, when the proximity switch senses the sensor board, the proximity switch outputs, the relay operates, and the handle pulls in and disconnects. [0003] Due to the manufacturing error and assembly error of the parts, it is necessary to adjust the position of the proximity switch or the induction plate to realiz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F3/43
CPCE02F3/43E02F3/431E02F3/432E02F3/435
Inventor 杨华斌邵晖钟荣康李劼
Owner GUANGXI LIUGONG MASCH CO LTD
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