Auxiliary jacking device for tire crane

Abstract

The invention discloses an auxiliary jacking device of a tyre crane. The auxiliary jacking device comprises a jacking oil cylinder, a spherical hinge support, a hydraulic mechanism and a control device. The jacking oil cylinder is installed on a machine frame of the tyre crane. The installation position of the jacking oil cylinder corresponds to the position of a cart mechanism of the tyre crane. The spherical hinge support is installed at the bottom of the jacking oil cylinder and supported on the ground. The hydraulic mechanism is installed on the machine frame of the tyre crane and connected to the jacking oil cylinder. The control device is connected to the hydraulic mechanism and used for detecting operation of the cart mechanism, operation of a trolley mechanism and operation of a lifting mechanism of the tyre crane. A control mechanism sends out a control command to indicate the hydraulic mechanism to drive the jacking oil cylinder to stretch out or retract, when the jacking oil cylinder stretches out, the spherical hinge support is supported on the ground, and the load of tyres of the cart operation mechanism is shared by the jacking oil cylinder and the spherical hinge support. Through the auxiliary jacking device of the tyre crane, the load of the tyres can be effectively shared during fixed point operation, and impact of operation of the trolley mechanism and operation of the lifting mechanism to the tyres is reduced.

Description

Technical field [0001] The invention relates to the field of construction machinery, and more specifically to cranes. Background technique [0002] The tire crane is a crane with walking ability, and the tire crane is operated in the container yard. The tyre crane can use its self-lifting cart mechanism and trolley structure to carry containers to move in the yard and move the containers to a designated location. Due to the heavy weight of the tire crane, coupled with the load of the container carried, it will put a lot of pressure on the tires of the cart mechanism. According to statistics, the wear of the tires of the cart mechanism mainly occurs in the links of cart walking, cart steering, and fixed-point operation. [0003] The wear of the tires during the walking of the cart is unavoidable and can be considered as the normal wear and tear of the tires. The abrasion of the big car when turning is mainly from the wear caused by the in-situ rotation of the tire under a heavy l...

AI Technical Summary

Problems solved by technology

Due to the frequent fixed-point operations, the frequent operation of the trolley mechanism and the lifting mechanism causes a lot of pressure on the tires. Whether it is lateral impact or pressure fluctuations in the tires, it will cause great damage to the tires, which is prone to fatigue and bulges. fail

Fixed-point operation is the main operation method of tire cranes, so the tire damage caused by fixed-point operation accounts for a high proportion of tire wear, but at present, there is no good means of protecting tires for fixed-point operation

[0005] The tires of the tire crane are special tires, which are expensive, and the rapid wear of the tires makes the use cost of the tire crane rise rapidly.

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