Telescopic guide roller device of crane sling

Abstract

The invention relates to a flexible guide cylinder of crane, wherein it comprises a fixed guide cylinder connected to the cart support, inner guide cylinder sheathed in fixed guide cylinder while its lower part is connected to the lifter; the fixed guide cylinder via bolt is fixed on the cart support; the inner guide cylinder is formed by at least three segment movable guide cylinders; the movable guide cylinder and fixed guide cylinder, and two movable guide cylinders are guided by lubricant blocks, and positioned by small buffer. The invention can reduce the height of workshop, and position accurately, reduce the inter-cylinder abrasion and prolong the service life of cylinder.

Description

technical field [0001] The invention belongs to parts of a crane, and relates to an auxiliary device of a crane spreader. Background technique [0002] At present, the supporting spreader of the crane usually uses a guide cylinder device, so that when the spreader is running with the crane trolley, it is rigidly connected in the running direction to play the role of accurate positioning. Such as Japanese guide cylinder ( Figure 5 ), its structure is a two-section telescopic guide cylinder, the outer guide cylinder I is radially fixed on the trolley frame II, and can move up and down relative to the trolley frame, the inner guide cylinder III is installed in the outer guide cylinder, and there are four guide wheels on the upper part IV guide, the lower part is guided at the lower end of the outer guide cylinder. The lower part of the inner guide cylinder is connected with the sling V, and the up and down movement of the guide cylinder is driven and supported by the lifting ...

AI Technical Summary

Problems solved by technology

The shortcoming that the guide cylinder device of prior art exists: 1, when inside and outside guide cylinder reaches the highest point, the highest point of the vehicle height is also the highest point of the guide cylinder (about 5m above the trolley frame, and now the vehicle height is about 9m )

Therefore, the height of the required factory building is high, and the basic investment is large.

2. The four guide wheels of the inner guide cylinder are always moving at a fixed position. As time goes by, the wall of the outer guide cylinder is worn and thinned, which is prone to accidents

Moreover, the replacement of the guide cylinder takes up a lot of working time and high cost

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