A symmetrical bolt positioning type gapless height adjustment device

Abstract

The invention discloses a symmetric bolt positioning gapless height adjusting device belonging to the technical field of agricultural machines. The height adjusting device is mainly composed of an adjusting rocking handle, an adjusting main shell, an adjusting sliding block, a locking device and a shell bottom cover, wherein the adjusting rocking handle is coaxially connected with the adjusting main shell and is coaxially connected with the shell bottom cover, the adjusting rocking handle is in threaded connection with the locking device of the adjusting sliding block, and fastening bolts are connected with hinge holes of stretching arms of the locking device of the adjusting sliding block. According to work needs, the adjusting sliding block can be adjusted at any height through the adjusting rocking handle; height adjusting of a component to be adjusted of a combined machine is completed so that the machine operates; disassembly-free adjustment, bi-directional adjustment and gapless adjustment are achieved during adjustment, it is avoided that the combined machine cannot be fixed at the needed work height, the combined machine is in a locked state after height adjustment is completed, stress is uniform, work is stable, and all work requirements are met.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a symmetrical bolt positioning type clearance-free height adjustment device, in particular, the device is suitable for a ploughing and rotary tillage retesting machine; The symmetrical tightening bolts make the adjustment slider locked at any height, and according to the work needs, the adjustment direction is bidirectional, and the height adjustment is completed to make the machine work. Background technique [0002] In the field of agricultural machinery, height adjustment devices are applied in many places. At present, the height adjustment devices in the field of agricultural machinery are mainly divided into the following types: one is the adjustment of the threaded screw and the positioning of the limit hole, such as the Chinese patent CN202455769 U, whose name is "Elevating agricultural machinery guide device"; one is hydraulic adjustment with li...

AI Technical Summary

Problems solved by technology

The disadvantage is that the adjustment height does not have continuity, and arbitrary height adjustment cannot be performed; the height adjustment direction is single, and can only be adjusted in one direction; the machine needs to be disassembled and reconnected during adjustment

[0005] Aiming at the shortcomings of the existing height adjustment devices in the field of agricultural machinery: the height adjustment does not have continuity, the adjustment process is cumbersome and needs to be disassembled, the work efficiency is low, the adjustment direction is single and does not have bidirectionality, and a disassembly-free adjustment is invented. Symmetrical bolt-positioned non-gap height adjustment device for plow turning and rotary tillage retesting machine with clearance adjustment and bidirectional adjustment

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