Connecting rod type agricultural machine wheel turning angle measuring mechanism and measuring method

A technology for wheel angle and measuring mechanism, which is applied to measuring devices, instruments, and optical devices, etc., can solve the problems of difficulty in establishing a parallel four-bar mechanism, complicated structure of the front axle of agricultural machinery, and increased cost, and achieves simple structure and high precision. , the effect of easy installation

Active Publication Date: 2014-07-02
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] Using an electronic ruler to measure the wheel angle requires a high-precision wheel angle meter to calibrate the wheel angle, which undoubtedly increases the cost; the magneto-resistive angle sensor has high requirements for installation accuracy, and the rotation center of the angle senso

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  • Connecting rod type agricultural machine wheel turning angle measuring mechanism and measuring method
  • Connecting rod type agricultural machine wheel turning angle measuring mechanism and measuring method
  • Connecting rod type agricultural machine wheel turning angle measuring mechanism and measuring method

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[0046] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0047] Such as figure 1 As shown, the present invention includes a link mechanism 1, an angle sensor 2, a steering cylinder 3, a king pin 5, and a steering arm 4. One end of the link mechanism 1 is connected to the front axle 6 of the agricultural machine, and the other end is connected to the output end of the steering cylinder 3. connection. One end of the steering arm 4 is connected to the kingpin 5 rotatably mounted on the front axle 6 of the agricultural machinery, and the other end is connected to the output end of the steering cylinder 3. The angle sensor 2 is arranged at one end of the link mechanism 1, the kingpin rotation center A, angle sensor The rotation center E and the two hinge points B and F of the ball bearing form an arbitrary quadrilateral. The steering cylinder 3 drives the steering arm 4 and the link mechanism 1 to rotate.

[0048] Such as...

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Abstract

The invention provides a high-precision wheel turning angle measuring device and measuring method. The high-precision wheel turning angle measuring device is used for an agricultural machine automatic navigation control system and is simple in structure and easy to mount. The measuring device comprises a connecting rod structure, a collecting module and an angle sensor. the connecting rod mechanism is connected with an agricultural machine steering mechanism, and the linear motion of an agricultural machine steering oil cylinder is transformed into the rotation of the angle sensor, or the swing of an agricultural steering arm is transformed into the rotation of the angle sensor; a 32-bit embedded processor serves as a kernel of the collecting module, and the collecting module is provided with various angle sensor data collecting interfaces. According to the measuring method, original data of the angle sensors are transformed into wheel turning angle values according to a model of the relation between wheel turning angles and output values of the angle sensor. According to the wheel turning angle measuring device and measuring method, mechanism and measurement integrated design is achieved, and the wheel turning angle measuring device and measuring method are novel for the agricultural automatic navigation control system.

Description

technical field [0001] The invention relates to wheel rotation angle measurement technology, in particular to a wheel rotation angle measurement device and measurement method for automatic navigation of agricultural machinery. Background technique [0002] Agricultural machinery automatic navigation technology is one of the important supporting technologies of modern agricultural machinery equipment. Realizing the intelligent navigation of agricultural machinery can effectively reduce the labor intensity of drivers and improve the quality of farmland operations, which has important theoretical research significance and practical application value. [0003] In the automatic navigation control system of agricultural machinery, the wheel angle measurement accuracy is one of the important factors affecting the navigation control accuracy. The existing sensors for measuring the wheel angle of agricultural machinery mainly include electronic scales, magnetoresistive angle sensors...

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Application Information

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IPC IPC(8): G01B11/26
Inventor 胡静涛高雷王鹤白晓平刘晓光李逃昌迟浩东
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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