Steering hinge device for extra-heavy type vibratory roller

Abstract

The invention discloses a steering hinge device for an extra-heavy type vibratory roller. The steering hinge device comprises a rear hinged frame, a bearing, a hinge pin and a front hinged frame; the rear hinged frame is hinged to the front hinged frame through the hinge pin, the bearing is connected between the hinge pin and the front hinged frame in a sleeved mode, and the rear hinged frame comprises an outer support rod and an inner support rod; the device further comprises a sliding sleeve and multiple lock nuts, the upper end face of the bearing is connected with the lower end face of the outer support rod, the sliding sleeve is connected between the lower end of the hinge pin and the inner support rod in a sleeved mode, the lock nuts are installed on the hinge pin at the lower end of the sliding sleeve, the lock nuts are screwed to push the sliding sleeve to move upwards, and the hinge pin, the outer support rod, the bearing and the sliding sleeve are driven to be closely connected in sequence to control the hinge pin to be locked on the rear hinged frame. The steering hinge device for the extra-heavy type vibratory roller is simple in structure, convenient to install and disassemble and capable of effectively eliminating axial clearances among the hinge pin, the rear hinged frame, the bearing and the front hinged frame, hole or shaft abrasion caused by relative rotation between the hinge pin and the rear hinged frame is eliminated, and the steering stability of the whole machine, the whole machine workability and safe drivability are guaranteed.

Description

technical field [0001] The invention belongs to the field of road surface machinery of construction machinery, in particular to a steering hinge device of a super-heavy vibratory road roller. Background technique [0002] Vibratory rollers are equipment that use their own gravity and vibration to compact various construction and road construction materials. In railways, airports, ports, construction and other projects, vibratory rollers are most suitable for compacting various non-cohesive soils, crushed stones, crushed stone mixtures and various asphalt concrete, and are one of the important equipment for engineering construction; in road construction , it is mostly used in the compaction of roadbed and road surface, and it is an indispensable compaction equipment in road surface construction. [0003] The front and rear frames of the existing vibratory roller are basically connected by a steering hinge device. During the running of the vibratory roller, the steering of th...

AI Technical Summary

Problems solved by technology

[0006] 1. The pressing bolt positions the pin shaft on the rear hinged frame through the pressing plate. Because there is always an axial gap between the pressing plate and the pin shaft, and between the pressing bolt and the threaded hole of the pressing plate, the front and rear hinged frames are controlled in When turning relatively in the horizontal plane, under the super large load force, the pin shaft gradually deforms and wears due to the contact with the pressure plate, and the pin shaft gradually rotates relative to the rear hinge frame, thus wearing the pin shaft mounting hole on the rear hinge frame , so that it becomes an oval hole, which affects the steering stability and overall performance of the vibratory roller;

[0007] 2. Because there are always errors in the processing of the connection between the rear hinged frame and the front hinged frame, the spacer can not completely eliminate the axial gap between the rear hinged frame and the front hinged frame. When turning, under the super-large load force, the pin shaft moves axially and contacts the pressure plate to gradually deform and wear, and the pin shaft gradually rotates relative to the rear hinge frame, thus wearing the pin shaft mounting hole on the rear hinge frame, making It becomes an oval hole, which affects the steering stability of the vibratory roller and the working performance of the whole machine;

[0008] 3. Under the super-large load force, the two compression bolts will be sheared, causing the pressure plate and the pin shaft to loosen from the rear hinged frame, which has hidden dangers to the safe driving performance of the whole machine

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