Excavator bucket rod rotation angle measuring device

A technology of rotation angle and measuring device, which is applied in the direction of measuring device, mechanically driven excavator/dredger, electric device, etc. damage, improved reliability, improved assembly efficiency

Active Publication Date: 2018-04-20
QINGDAO LOVOL EXCAVATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a device for measuring the rotation angle of the arm of an excavator, which solves the problem that the rotation axis of the angle sensor used to measure the rotation angle of the arm is difficult to be coaxial with the pin shaft, which leads to inaccurate measurement of the rotation angle of the arm and the reliability of the angle sensor lower sex problems

Method used

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  • Excavator bucket rod rotation angle measuring device
  • Excavator bucket rod rotation angle measuring device

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Embodiment Construction

[0022] Such as figure 1 , figure 2 As shown, this embodiment provides an excavator arm rotation angle measuring device, including a sensor mounting plate 3, a positioning rod 4, a bearing 5, a rotating disk 6, a transmission rod 7, and a reluctance angle sensor. The boom 11 of the excavator is fixedly connected with the pin shaft 2, the boom 11 is articulated with the arm 12 through the pin shaft 2, the arm cylinder 13 is arranged on the boom 11, and the expansion and contraction of the arm cylinder 13 drives the arm 12 to rotate around the pin shaft 2 . The shaft center of the pin shaft 2 is provided with a threaded hole, and the positioning rod 4 is provided with external threads, and the positioning rod 4 is threadedly connected to the threaded hole at the shaft center of the pin shaft 2, so that the positioning rod 4 is connected to the axial center position of the pin shaft 2 and Make positioning rod 4 and bearing pin 2 coaxial. The sensor mounting plate 3 is connecte...

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Abstract

The invention provides an excavator bucket rod rotation angle measuring device. A movable arm is fixedly connected with a pin shaft; and the movable arm is hinged with a bucket rod through the pin shaft. The excavator bucket rod rotation angle measuring device comprises a rotating disc, a positioning rod, a drive rod and a magnetic resistance angle sensor. The rotating disc is provided with an assembly hole; the positioning rod is connected to the pin shaft axis center position and is co-axis with the pin shaft. The tail end of the positioning rod is assembled and connected to the assembly hole in the rotating disc through a bearing. One end of the drive rod is connected with the bucket rod, and the other end of the drive rod is connected with the rotating disc. The magnetic resistance angle sensor comprises magnet pieces and a sensor main body. The magnet pieces are arranged on the rotating disc; the sensor main body is arranged on the movable arm; and the sensor main body is internally provided with a magnetic induction element. The beneficial effects are that the device is convenient to assemble, disassemble and maintain, and can accurately measure the rotation angle of the bucket rod; and the angle sensor is high in reliability.

Description

technical field [0001] The invention relates to the technical field of excavators, in particular to an excavator arm rotation angle measuring device. Background technique [0002] With the improvement of the intelligence level of construction machinery, excavators have begun to develop in the direction of semi-automatic or fully automatic control. The premise of realizing semi-automatic or fully automatic control is that the excavator can perceive its own posture, and can measure the rotation angle of the boom, stick, and bucket in real time. The stick of the excavator is connected to the boom through a pin shaft, and the stick rotates around the pin shaft of the boom under the push of the stick hydraulic cylinder. At present, there are two methods for measuring the movement angle of the stick: displacement measurement and angle measurement. [0003] Displacement measurement is to replace the stick hydraulic cylinder with a stroke sensing cylinder with a displacement senso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/30E02F3/38
CPCG01B7/30E02F3/38
Inventor 陈维雄李冰王宾陈会君王蓉袁淑芬刘晓磊
Owner QINGDAO LOVOL EXCAVATOR
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