Lift truck for hot vessels, particularly for steel-mill converters专利检索-起落架飞行器飞机类型专利检索查询-专利查询网

Lift truck for hot vessels, particularly for steel-mill converters

阅读：487发布：2024-01-21

专利汇可以提供Lift truck for hot vessels, particularly for steel-mill converters专利检索，专利查询，专利分析的服务。并且The lift truck has an undercarriage with driving means for moving the truck along tracks and carrying hydraulic actuators operable to lift the undercarriage at track intersections to change the direction of movement of the truck. Two pairs of piston-cylinder hydraulic actuators are mounted on the undercarriage and each actuator includes a cylinder supported on the undercarriage to extend vertically upwardly therefrom and a piston movable upwardly in the associated cylinder and carrying an enlarged piston head. Pairs of tie rods are supported on each piston head through universal or gimbal type Cardan joints for universal swinging movement, and the lower ends of the tie rods are also provided with the same general type of joints. The tie rods associated with each pair of actuators support a respective stirrup so that, when the pistons are extended, the associated stirrups are lifted. These stirrups engage beneath a reinforcing ring or the like on a hot vessel, such as a steel-mill converter, and are operable to lift the vessel upwardly to engage the vessel in a tilting cradle or support in which the vessel is then locked. The gimbal or Cardan type connections of the tie rods to the piston heads and to the stirrups provide for adjustment of the tie rods and stirrups to the orientation assumed by the converter when the latter is being inserted into a tilting support.，下面是Lift truck for hot vessels, particularly for steel-mill converters专利的具体信息内容。

权利要求

1. In a transportation lift truck, for hot vessels having an external projection for support of the vessel, particularly steel-mill converters adapted to be supported in a tilting support, and including an undercarriage having driving means for moving the truck along tracks and carrying hydraulic actuator means opeRable to lift the undercarriage at track intersections to change the direction of movement of the truck along the tracks: the improvement comprising, in combination, hoisting means on said undercarriage engageable with vessel projections at at least two points of the vessel periphery, and operable to lift a vessel from said undercarriage into a tilting support for securement in the latter; and means included in said hoisting means accomodating adaption of the entire vessel to the orientation assumed by the entire vessel during insertion thereof into a tilting support.

2. In a transportation lift truck, the improvement claimed in claim 1, in which said hoisting means comprises hydraulic piston-cylinder actuators arranged in pairs on said undercarriage and each including an upwardly extensible piston rod having a respective head gimbal-mounted at its upper end; and stirrups each supported from a pair of piston rod heads and oriented to extend tangentially of the circumference of a vessel carried by said truck.

3. In a transportation lift truck, for hot vessels having an external projection for support of the vessel, particularly steel-mill converters adapted to be supported in a tilting support, and including an undercarriage having driving means for moving the truck along tracks and carrying hydraulic actuator means operable to lift the undercarriage at track intersections to change the direction of movement of the truck along the tracks: the improvement comprising, in combination, hoisting means on said undercarriage engageable with vessel projections at at least two points of the vessel periphery, and operable to lift a vessel from said undercarriage into a tilting support for securement in the latter; and means adapting said hoisting means to the orientation assumed by a vessel during insertion thereof into a tilting support; said hoisting means comprising hydraulic piston-cylinder actuators arranged in pairs on said undercarriage and each including an upwardly extensible piston rod having a respective head gimbal-mounted at its upper end; stirrups each supported from a pair of piston rod heads and oriented to extend tangentially of the circumference of a vessel carried by said truck; Cardan joints on each piston rod head; and substantially vertically oriented tie rods connected to said joints and to said stirrups; said stirrups being arranged to extend tangentially under a reinforcing ring fixedly connected with a vessel positioned on said truck.

4. In a transportation lift truck, the improvement claimed in claim 3, in which the connecting points of said tie rods to said stirrups comprise further Cardan joints.

5. In a transportation lift truck, the improvement claimed in claim 3, in which each piston rod head supports two double pins extending perpendicularly to each other; each set of two double pins supporting a pair of tie rods; each end of one double pin forming, with the associated tie rod end, a Cardan joint.

6. In a transportation lift truck, the improvement claimed in claim 4, in which the opposite ends of said stirrups are forked to provide two spaced fork tines; each fork tine engaging a respective pivot pin of the associated one of said further Cardan joints.

7. In a transportation lift truck, the improvement claimed in claim 5, in which each of said double pins is engaged in a Cardan joint body mounted on the associated piston rod head through the medium of one of said two double pins.

8. In a transportation lift truck, the improvement claimed in claim 7, in which said stirrups are forked at their opposite ends to provide spaced fork tines; each fork tine being engaged with a respective pin of a further Cardan joint at the lower end of the associated tie rod; said forks being designed as pivot bearings for the associated stirrup.

9. In a transportation lift truck, the improvement claimed in claim 8, in which the upper tie rod ends carry cross-pins engaged in upwardly opening recesses of the Cardan joint body.

10. In a Transportation lift truck, the improvement claimed in claim 9, in which the lower tie rod ends have cross-pins engaged in downwardly opening recesses in said forks.

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Lift truck for hot vessels, particularly for steel-mill converters

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