Square and round object hoisting tong device and hoisting method thereof

Abstract

The invention relates to a square and round object hoisting tong device. The square and round object hoisting tong device comprises a suspension weighing device, a tong tongue, a tong body, movable stop pieces and a pressing machine, wherein the tong body is of a horizontally-rightward-U-shaped structure; the pressing machine with adjustable pressing force is vertically arranged at the middle position of the tong body; the pressing direction of the pressing machine faces inwards; the tong tongue is shaped as an outwardly-warped arc line; clamping teeth are arranged at the lower end of the tongtongue structure; the upper end of the tong tongue structure is movably connected with the lower end of the suspension weighing device; the middle part of the tong tongue is hinged with one end of the tong body; the other end of the tong body is hinged with a pair of movable stop pieces; a torsion mechanism is arranged at a hinged part; the pair of movable stop pieces are arranged on two sides ofthe tong body and are warped upwards in an unloaded state. Through the square and round object hoisting tong device, the vacancy of square timber hoisting tools is made up; the unification of round and square timber hoisting tools is achieved; an intelligent method is used for monitoring whether hoisted heavy objects are in a reasonable load range, so that simple, efficient, safe and intelligenthoisting can be achieved; the safety of workers is ensured; meanwhile, the efficiency of engineering is also improved.

Description

technical field [0001] The invention relates to a lifting tong device, in particular to a lifting tong device for square and round objects. Background technique [0002] Timber is divided into two categories: round wood and finished timber. Finished wood refers to processed or preliminary processed wood, which is divided into two types: square wood and plank. For the lifting of logs, horse hooks are often used ( figure 1 ), wire rope buckle ( figure 2 ), hooked sling ( image 3 ), grab to complete. [0003] Finished timber is a frequently used material in construction and other fields, so the research on the lifting mechanism of processed timber has its practical needs that cannot be ignored. However, there are few lifting devices for square timber in actual engineering. The more common ones are slings, and some use compression clamps ( Figure 5 ). [0004] When the sling is used, usually two ring-shaped slings are used at the same time, and the hoisting operation ...

AI Technical Summary

Problems solved by technology

The complexity of the operation of the two results in low efficiency in hoisting square timber with the two

[0009] 2) Poor flexibility and few applicable environments: Whether it is a sling or a compression test fixture, the volume is large, and it is inconvenient to use when the construction space is limited

In addition, the two are more suitable for lifting a large number of square logs at a time. If the construction conditions only allow a small amount of square logs to be lifted to the working position each time, both are wasteful, and they cannot fix the square logs well, so no guarantee of safety

[0010] 3) Lack of intelligence: when hoisting is overloaded and continues to operate, it will bring great safety hazards

In this case, the current spreader cannot make full use of the tension data during the hoisting process to assist manual work and ensure the safety of hoisting

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