Arrangement form of balance weight on balance arm of tower crane with luffing boom

Abstract

The invention discloses an arrangement form of a balance weight on a balance arm of a tower crane with a luffing boom. The balance weight (1) is suspended on the rear middle portion of the balance arm (2) and located between two main beams of the balance arm (2). The balance weight (1) is limited and fixed through the main beams, and a mounting mechanism connected with the main beams is located above the balance weight (1). The arrangement form has the beneficial effects that the balance weight arranged on the balance arm is very convenient and quick to mount and demount, and the use requirements for a cement balance weight and a cast iron balance weight can be met at the same time; and the length of the balance arm can be effectively reduced, the turning radius of the tower crane with the luffing boom can be reduced, and the tower crane with the luffing boom can meet the use requirement of narrower space.

Description

technical field [0001] The invention relates to an arrangement form of a counterweight on a balance arm, and belongs to the technical field of a boom-type tower crane. Background technique [0002] The counterweight on the balance arm of the existing boom-type tower crane is generally arranged as a rear-mounted type, such as figure 1 As mentioned above, the counterweight is placed at the rear end of the balance arm, which requires additional installation space, and other components such as the tower top and mechanism are placed inwards in turn, and the structure of the balance arm is relatively simple, which can only meet the needs of cement counterweights. Or the use requirements of cast iron counterweight, two structural forms need to be considered in the design and production, and choose to use according to the different needs of customers. [0003] However, the existing method of arranging counterweights on the balance arm has the following technical disadvantages: 1. T...

AI Technical Summary

Problems solved by technology

[0002] The counterweight on the balance arm of the existing boom-type tower crane is generally arranged as a rear-mounted type, such as figure 1 As mentioned above, the counterweight is placed at the rear end of the balance arm, which requires additional installation space, and other components such as the tower top and mechanism are placed inwards in turn, and the structure of the balance arm is relatively simple, which can only meet the needs of cement counterweights. Or the use requirements of cast iron counterweight, two structural forms need to be considered when designing and manufacturing, and choose to use according to different needs of customers

[0003] However, the existing method of arranging counterweights on the balance arm has the following technical disadvantages: 1. The structure is single, resulting in an increase in the variety of tower cranes with the same performance, which is not conducive to production management and inventory control

When installing and dismounting the counterweight, personnel can only operate while standing on the side of the balance arm. At the same time, they need to often climb above the counterweight to operate, which makes it difficult to install and disassemble the counterweight, and reduces the safety of the operator.

[0005] 3. The tower crane has a large turning radius, which is not conducive to mobile operations in a narrow space

The counterweight is arranged at the tail of the balance arm, resulting in an increase in the length of the balance arm. When working, the balance arm needs to occupy more space for turning and hoisting operations

Images