CN201024044Y

CN201024044Y - Rotary sling of crane

Info

Publication number: CN201024044Y
Application number: CNU200620128080XU
Authority: CN
Inventors: 沈雷; 曹天浩; 闫俊慧
Original assignee: TAIYUAN HEAVY MACHINERY GROUP CO Ltd
Current assignee: Taiyuan Heavy Industry Co Ltd
Priority date: 2006-11-08
Filing date: 2006-11-08
Publication date: 2008-02-20
Anticipated expiration: 2016-11-08

Abstract

The utility model provides a rotary lifting tool of a crane. The utility model is characterized in that a lifting hook transverse beam and four lifting hook side plates are welded into a whole for integrated process together, which can ensure the processing and assembly precision of the lifting tool. A traveling pulley block is arranged between two lifting hook side plates and is symmetrically arranged on a central line of the lifting hook; a lifting handle of the lifting hook is provided with a thrust bearing and a conical roller bearing, is then arranged in a central hole of the lifting hook transverse beam, and is tightly locked by a nut; a reducing motor is arranged in the middle of the traveling pulley block, and is directly connected with a lifting handle head spline by a hollow spline shaft; the reducing motor is fixed on a lifting transverse beam by a flange, a sleeve and a bolt. The utility model has the advantages of compact structure, small volume, light weight, safety and reliability, low malfunction ratio, convenient maintenance and application, simple manufacturing processing and assembly process, low manufacturing cost, etc.

Description

A kind of revolution suspender of hoisting crane

One, technical field

The utility model belongs to the handling machinery technical field; What be specifically related to is a kind of revolution suspender of hoisting crane.

Two, background technology

At present, in the steel mill workshop, the suspender of the metallurgical crane in bridge type of joining because of manufacturing technique requirent has required revolute function, therefore, is provided with swing type mechanism on suspender.The revolution suspender comprises reducing motor 1, coupler 2, tapered roller bearing 3, thrust ball bearing 4, miniature gears 5, big gear wheel 6, suspension hook 7, overarm brace 8, counterweight 9 and assembly pulley etc. as depicted in figs. 1 and 2; Big gear wheel drives suspension hook 7 and rotates, and adorns suspension hook on the overarm brace 8, and reducing motor is arranged in suspension hook one side, and has increased counter weight device at the opposite side of suspender.This revolution hanger structure is loose, and parts are more in addition, and volume is bigger, and weight is heavier, and arrangement makes that the manufacturing processing and the assembly technology that turn round suspender are comparatively complicated, and manufacturing cost is higher.And exist reliability of service than low and the higher deficiency of fault rate.

Three, summary of the invention

The purpose of this utility model is to overcome the deficiency that exists with above-mentioned prior art, provides a kind of and has compact conformation, volume is little, in light weight, safe and reliable, fault rate is low, maintenance and revolution suspender easy to use, that make processing and the hoisting crane that assembly technology is simple, manufacturing cost is lower.

The technical solution of the utility model is achieved in that

A kind of revolution suspender of hoisting crane, comprise reducing motor 201, running block 202, lifting beam with hook 203 and suspension hook 204, be characterized in: described lifting beam with hook and four suspension hook side plates are welded as integral body, adorn running block between two suspension hook side plates, and be symmetrical in the line of centers of suspension hook, suspension hook hang on the handle dress thrust bearing 205, tapered roller bearing 206 after, reinstall in the mesopore of lifting beam with hook, and by nut 207 lockings; Described reducing motor is contained in the centre of running block, directly be connected with the negative winding stem spline that hangs of suspension hook by hollow castellated shaft, reducing motor with flange 208, sleeve 209 be bolted on the lifting beam with hook.

The revolution suspender of a kind of hoisting crane that the utility model provides is compared with the revolution suspender of existing hoisting crane, has removed the parts such as big miniature gears, coupler, counterweight and radial bearing of traditional revolution suspender.Therefore, it has compact conformation, volume is little, in light weight, safe and reliable, fault rate is low, maintenance and easy to use, make processing and advantage such as assembly technology is simple, manufacturing cost is lower, be mainly used on the metallurgical crane in bridge type.

Four, description of drawings

Fig. 1 is the front view of existing crane rotation suspender;

Fig. 2 is the lateral plan of existing crane rotation suspender;

Fig. 3 is the front view of the utility model crane rotation suspender;

Fig. 4 is the lateral plan of the utility model crane rotation suspender.

Five, the specific embodiment

Below in conjunction with the description of drawings specific embodiment of the present utility model.

Fig. 3 and shown in Figure 4, the revolution suspender of a kind of hoisting crane of the utility model comprises reducing motor 201, running block 202, lifting beam with hook 203 and suspension hook 204 equally; Lifting beam with hook and four suspension hook side plates are welded as integral body, and carry out integral body processing together, have guaranteed the processing and the assembly precision of suspender; Adorn running block between two suspension hook side plates, and be symmetrical in the line of centers of suspension hook, suspension hook hang on the handle dress thrust bearing 205, tapered roller bearing 206 after, reinstall in the mesopore of lifting beam with hook, and by nut 207 lockings; Reducing motor is contained in the centre of running block, directly be connected with the negative winding stem spline that hangs of suspension hook by hollow castellated shaft, reducing motor with flange 208, sleeve 209 be bolted on the lifting beam with hook.

Claims

1. the revolution suspender of a hoisting crane, comprise reducing motor (201), running block (202), lifting beam with hook (203) and suspension hook (204), it is characterized in that: described lifting beam with hook and four suspension hook side plates are welded as integral body, adorn running block between two suspension hook side plates, and be symmetrical in the line of centers of suspension hook, the hanging of suspension hook adorned thrust bearing (205), tapered roller bearing (206) on the handle after, reinstall in the mesopore of lifting beam with hook, and lock by nut (207); Described reducing motor is contained in the centre of running block, directly is connected with the negative winding stem spline that hangs of suspension hook by hollow castellated shaft, and reducing motor is with flange (208), sleeve (209) and be bolted on the lifting beam with hook.