Index location mechanism of grass mowing disc of farm machinery

Abstract

The invention discloses an index location mechanism of a grass mowing disc of farm machinery. The index location mechanism comprises a worktable, index pins, a location block, a poking strip, a sliding block, a cylinder and a rack, wherein the index pins are fixedly arranged on the lower surface of the worktable at equal intervals; one end of the location block is provided with a hook claw; the middle part of the location block is hinged to the rack, and a torsion spring is arranged at the hinged position; the poking strip is L-shaped; the corner of the poking strip is hinged to the sliding block; one end of the poking strip is provided with a poking fork provided with an S-shaped clamping track; the end part of the poking fork is pressed against the location block and can drive the location block to rotate; and the sliding block is connected with an output rod of the cylinder. The scheme disclosed by the invention has the advantages that the power mechanism of the worktable is only the cylinder; the poking strip is driven by the cylinder; linkage between the location block and the worktable is realized; and the whole index mechanism is simple in structure and convenient to manufacture.

Description

technical field [0001] The invention relates to an indexing and positioning mechanism, in particular to an indexing and positioning mechanism for mowing trays of agricultural machinery. Background technique [0002] The mowing disc is the main accessory of garden trimming tools such as lawn mowers, and is often used for lawn trimming. Existing mowing discs use the shearing force generated by high-speed rotating ropes or chains to trim the lawn; knives need to be installed on the disc surface of the mowing disc, and the knives need to be installed symmetrically in the circumferential direction. Holes are processed. Generally, when processing mounting holes, it is necessary to fix the workpiece on the indexing and positioning device, and then cooperate with the drilling machine to process the grass disc. The transmission mechanism for indexing and positioning currently used mostly uses worm gears. Although worm gears have better The self-locking function, but its transmission...

AI Technical Summary

Problems solved by technology

Existing mowing discs use the shearing force generated by high-speed rotating ropes or chains to trim the lawn; knives need to be installed on the disc surface of the mowing disc, and the knives need to be installed symmetrically in the circumferential direction. Holes are processed. Generally, when processing mounting holes, it is necessary to fix the workpiece on the indexing and positioning device, and then cooperate with the drilling machine to process the grass disc. The transmission mechanism for indexing and positioning currently used mostly uses worm gears. Although worm gears have better The self-locking function, but its transmission mode is relatively complicated, which makes the whole mechanism more complicated, and the power mechanism is selected as a motor. Due to the inertia of the motor operation, the wear of the worm gear is relatively large, which affects the accuracy of indexing and positioning.

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