Self-locking hydraulic variable-diameter threshing cylinder and combine harvester

A threshing drum, hydraulic technology, applied in the direction of harvesters, threshing equipment, cutters, etc., can solve the problems of complex structure, heavy weight, and poor automatic control of variable diameter drums, so as to ensure operation stability, reduce weight, Effects that are easy to automate

Active Publication Date: 2021-01-08
JIANGSU UNIV
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Problems solved by technology

[0003] In order to solve the problems of complex structure, heavy weight and poor automatic control of the variable diameter drum of the existing combine harvester, an automatic drum with simple and compact structure, light weight, fast response speed, high power density, and real-time, fast and stepless adjustment of the diam

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  • Self-locking hydraulic variable-diameter threshing cylinder and combine harvester
  • Self-locking hydraulic variable-diameter threshing cylinder and combine harvester
  • Self-locking hydraulic variable-diameter threshing cylinder and combine harvester

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[0038]The present invention will be further described below with reference to the drawings and specific embodiments, but the protection scope of the present invention is not limited to this.

[0039]Such asfigure 1 ,figure 2 As shown, the self-locking hydraulic variable diameter threshing drum of the present invention includes a threshing drum, a diameter adjustment device, a hydraulic transmission device, a hydraulic pump station, and a signal acquisition control system. The diameter adjustment device is located inside the threshing drum and is installed in the threshing drum. The inner side of the support web at both ends of the drum and the installation groove of the middle support web are symmetrical to each other, and the first dust cover 208 and the second dust cover 209 are installed to prevent dust.

[0040]The threshing drum includes a drum main shaft 105, a feeding wheel 101, a front support web 102, a rear support web 107, and a first intermediate support web 103, which are seq...

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Abstract

The invention provides a self-locking hydraulic variable-diameter threshing cylinder and a combine harvester. The self-locking hydraulic variable-diameter threshing cylinder comprises a diameter adjusting device, a hydraulic transmission device, a hydraulic pump station and a signal acquisition control system, and the diameter adjusting device is located at the inner sides of supporting radial discs at the two sides of a threshing cylinder body; and the hydraulic transmission device transmits power to the diameter adjusting device. The cylinder threshing diameter can be steplessly adjusted through the diameter adjusting device; and a controller continuously adjusts the opening degree of three-position four-way electromagnetic proportional reversing valves based on real-time feedback signals of displacement sensors to control the input and output flow of hollow hydraulic cylinders, it is guaranteed that piston rods of the two hollow hydraulic cylinders synchronously move, and the diameter of the threshing cylinder body is synchronously adjusted in real time. After the diameter of the threshing cylinder body is adjusted, the threshed cylinder diameter can be effectively locked, and the operation stability of the threshing cylinder body is guaranteed. The working performance of the combine harvester can be effectively improved.

Description

technical field [0001] The invention relates to a grain threshing and separating device on a combine harvester, in particular to a self-locking hydraulic threshing diameter-adjustable threshing drum structure, which can realize stepless adjustment of the diameter of the threshing drum in real time. Background technique [0002] Threshing separation is an essential and crucial process in grain combined harvesting. The threshing drum is an important device of combined harvesting machinery, which separates the grain from the stem. Among them, the threshing gap of the threshing drum and the linear speed of the threshing element are important factors affecting the grain threshing performance. Because the physical and mechanical properties of different varieties of grains are quite different, and the annual output varies, so the fixed threshing gap and the linear speed of the threshing element lead to unsatisfactory threshing effect, and adjusting the threshing diameter of the dru...

Claims

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Application Information

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IPC IPC(8): A01F12/22A01F12/18A01F12/56A01F12/00A01D41/12
CPCA01D41/12A01F12/00A01F12/181A01F12/22A01F12/56
Inventor 李耀明刘延彬苏展陈立鹏
Owner JIANGSU UNIV
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