Tire clamping mechanism for land leveller

Abstract

The invention discloses a tire clamping mechanism for a land leveller. The tire clamping mechanism comprises a supporting cylinder body, a connecting rod and a limiting structure. A baffle is installed in the supporting cylinder body and fixedly provided with a motor. The output end of the motor is connected with a rotating plate after penetrating through the baffle. A plurality of horizontal grooves are uniformly formed in the other end of the supporting cylinder body, and clamping claws are arranged in the horizontal grooves in a sliding mode. One end of the connecting rod is hinged to the bottom of the rotating plate, and the other end of the connecting rod is hinged to the end portions of the clamping claws. Rectangular blind holes are formed in the inner walls of the horizontal grooves, and a plurality of idler wheels are installed in the rectangular blind holes. The limiting structure is arranged on the baffle. The idler wheels in the horizontal grooves can change sliding friction between the clamping claws and the groove walls into rolling friction, loss between the horizontal grooves and the clamping claws can be reduced, and the moving speed of the clamping claws can be increased. In the rotating process, the motor rotates horizontally at a constant oscillation angle, and therefore the clamping claws can move in the horizontal grooves fast.

Description

technical field [0001] The invention relates to a clamping tool, in particular to a tire clamping mechanism of a motor grader. Background technique [0002] The grader is an earthmoving machine that uses a scraper to level the ground. It is suitable for building roadbeds and road surfaces, building side slopes, digging side ditches, mixing road surface mixtures, sweeping snow, pushing loose materials, and maintenance of dirt roads and gravel roads. Work. There are two types of motor graders: double-axis and three-axis. The commonly used one is three-axis. differential for steering. The working principle of the grader is roughly as follows: the scraper is installed under the slewing ring through two brackets, and the slewing ring can be rotated to adjust the position of the scraper; the bracket of the slewing ring is triangular, and its front end is hinged on the front of the main frame, and The two corners are suspended in the middle of the main frame by lifting hydraulic...

AI Technical Summary

Problems solved by technology

[0003] In the production and assembly of motor graders, due to its large size and weight, it is generally difficult to manually move and assemble various parts

During the production, installation and disassembly process of motor grader tires, the ordinary peripheral clamping method is around the tire, and the outer ring of the tire is clamped by mechanical claws from the periphery to the middle to fix the tire. Although this clamping method can ensure that the tire It moves smoothly, but when the tire is vulcanized and other production and processing procedures, the peripheral clamping cannot meet the needs of production and processing; and in the ordinary peripheral clamping process, the mechanical jaw uses the hydraulic cylinder to clamp the tire, so that the clamping The overall weight of the head increases, which increases the working load of the telescopic end of the lifting equipment. During the clamping process, the hydraulic cylinder drives the mechanical claws to contact the tires for a rigid connection. Once the hydraulic cylinder fails, it is easy to make the clamped tire fall.

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