Guide wheel for hoisting endless chain calabash

Abstract

A directive wheel used for a lifting loop chain block belongs to the technical field of lifting loop chain blocks. The directive wheel comprises a mandrel and a flange combined on the mandrel, wherein, one end of the mandrel forms a first concave groove, the other end thereof forms a second concave groove; the middle part of the hub of the flange is combined with the middle part of the mandrel; one end of the hub is inserted in the first concave groove, and the other end thereof is inserted in the second concave groove. The directive wheel is characterized in that the first concave groove and the second concave groove are arranged on the mandrel, so that the flange and the mandrel can be combined reliably; the flange is made of non-metal materials, thereby avoiding pollution to the environment of the prior art because of casting, saving steel resource and showing lightness.

Description

technical field [0001] The invention belongs to the technical field of lifting chain hoists, and in particular relates to a guide wheel for lifting chain hoists. Background technique [0002] The chain hoist is a new type of small lifting tool introduced by our country in recent years and accepted by the public. This kind of hoist has the characteristics of lightness, flexibility, safety, reliability and low price. It can be used to replace the hand chain hoist. Double the work efficiency and reduce the labor intensity of the operator. Especially suitable for frequent lifting operations. There have been reports about chain hoists in documents such as Chinese patent documents. For example, A).CN2820810Y discloses a new electric chain hoist; B).CN2769245Y recommends an electric chain hoist. Document A) revolves around the technical solution proposed to overcome the shortcomings of the electric chain hoist in the prior art, such as low motor efficiency and high energy consum...

AI Technical Summary

Problems solved by technology

However, the prior art, including the above two documents, has not disclosed how to reasonably improve the structure of the guide wheels for lifting chain hoists, especially manual lifting chain hoists.

Therefore, the structure of the guide wheel used in the current lifting chain hoist is as follows: figure 1 As shown, it includes a mandrel 1 and a rim 2 arranged on the mandrel 1, wherein there is a pair of rims 2, which form a split assembly structure with the mandrel 1. The disadvantage is that the assembly operation is troublesome, and the rim 2 will produce The situation that it is separated from the mandrel 1 will affect the use and even cause safety hazards

Another structure of the guide wheel for the lifting chain hoist consists of figure 2 As shown, the mandrel 1 and the rim 2 are integrally cast. The advantage is that it can overcome the shortcomings of the former structure. The disadvantages are: heavy and casting will cause environmental pollution and unreasonable consumption of steel resources.

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