Road roller crab walk structure

Abstract

The invention discloses a road roller crab walk structure. The road roller crab walk structure is characterized in that connecting blocks are arranged in the middles of the inner sides of steel wheel racks, each traction block comprises a cross beam and a carling which is vertical to and fixedly connected with the middle of the cross beam, and the bottom end of the carling of the traction block is fixedly connected with the middle of the corresponding connecting block; the two traction blocks are connected through two horizontally arranged spring rods, and the two spring rods are arranged to be symmetrical about central axle lines of the carlings; connecting plates are hinged to carlings of two symmetrically arranged traction blocks; crab walk oil cylinders are symmetrically arranged with the vertical central axle lines of the connecting plates being a symmetrical line, and the ends of pistons of the crab walk oil cylinders are hinged to the ends of the connecting plates; the steel wheel racks are provided with horizontal supporting plates, and the cylinder bottoms of the crab walk oil cylinders are rotatably connected with the upper parts of the supporting plates. In the road roller crab walk structure, the two spring rods can weaken discontinuity stress caused by various reasons like vibration or deviation in a motion process of a road roller at random angles, the damage to the crab walk oil cylinders is reduced, and the service life of the crab walk oil cylinders is prolonged.

Description

technical field [0001] The invention relates to the technical field of road rollers, and more specifically relates to a crab row structure of a road roller. Background technique [0002] At present, most of the existing articulated steering structures of road rollers adopt the crab row structure; the existing crab row structure is unified in the middle or a separate crab row frame structure is adopted, and the horizontal staggering of the front and rear frames is realized by steering with the crab row; the crab row structure is adopted The frame structure means that the front and rear frame plus the middle hinged connection part, the front and rear frames and the middle hinged part can rotate each other centering on each axis perpendicular to the ground, and the entire hinged part can be rigidly connected to either side of the front and rear frame, and connected to the other side. The frame is connected by a shaft sleeve structure parallel to the ground, so that the front an...

AI Technical Summary

Problems solved by technology

However, at present, these crab mechanisms rely entirely on the hydraulic cylinder to maintain the swing angle during normal driving. Due to road conditions, it is inevitable that pulling and squeezing will occur. These sudden stresses will cause great damage to the hydraulic cylinder.

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