CN201220878Y

CN201220878Y - Transmission mechanism of sling for moving rotating beam of bridge-type lifter

Info

Publication number: CN201220878Y
Application number: CNU2008200705623U
Authority: CN
Inventors: 张立强; 刘忠岱; 李志国; 申长兰; 黄进前
Original assignee: WEIHUA CO Ltd
Current assignee: WEIHUA CO Ltd
Priority date: 2008-05-09
Filing date: 2008-05-09
Publication date: 2009-04-15
Anticipated expiration: 2018-05-09

Abstract

A transmission mechanism of a movable hanging tool for a bridge crane rotating beam relates to a crane. The utility model aims to provide a transmission mechanism of a movable hanging tool for a bridge crane rotating beam which can adjust the span between a hanging tool at the end of a telescopic beam and a hanging tool adjacent to the hanging tool. The utility model adopts the technical proposal that the transmission mechanism comprises a rotating beam and hanging tools. A sprocket is respectively arranged on a rotating shaft extending out of both sides of the rotating beam backwardly; a pair of movable hanging tools is respectively arranged at left and right ends of the rotating beam; the ends of two parallel shafts are fixedly connected with supporting frames for the hanging tools; a roller at the other end is supported on a guide rail outside a lateral plate for the rotating beam; a sprocket is arranged on a shaft under the end of the rotating shaft; the sprocket is relative to the sprocket on the lateral plate at the end of the rotating beam; chains are arranged on the sprocket on the shaft under the rotating shaft and the lateral plate at the end of the rotating shaft, and both ends thereof are connected with the supporting frames for the movable hanging tools; and flanges are arranged on the outer side of the rollers on the parallel shafts of the movable hanging tools. The utility model is used for cranes.

Description

A kind of transmission device of crane in bridge type rotating beam movable hanger

Technical field:

The utility model relates to a kind of hoisting crane, particularly a kind of transmission device of crane in bridge type rotating beam movable hanger.

Background technology:

Existing rotary extension beam bridge formula hoisting crane has a plurality of Electromagnetic slings for lifting loads, wherein the suspender at two ends is located at the termination of telescopic girder, remaining suspender is located on the rotating beam, when lifting by crane long weight (as steel plate), need make telescopic girder overhanging by Power train, this moment since all the other suspenders for being fixed on the rotating beam, the span increase between two suspenders, the lifted weight thing can produce flexural deformation.

Summary of the invention:

The purpose of this utility model provide the suspender of a kind of telescopic girder termination and the suspender that is adjacent between the transmission device of the adjustable a kind of crane in bridge type rotating beam movable hanger of span.The technical solution of the utility model is, a kind of transmission device of crane in bridge type rotating beam movable hanger, comprise rotating beam and suspender, it is characterized in that: stretch in outside on the S. A. of rotating beam both sides and respectively be provided with a sprocket wheel, two ends, the left and right sides at rotating beam respectively are provided with a pair of movable hanger, one end and the suspender support of two parallel shafts are connected, the roller of the other end is supported on the outer track of rotating beam side plate, on the axle below the S. A. termination, be provided with sprocket wheel, this sprocket wheel is relative with sprocket wheel on the side plate of rotating beam termination, chain places on the axle upper sprocket wheel and the sprocket wheel on the side plate of rotating beam termination of above-mentioned S. A. below, and there is flange in its two ends are connected the roller on the described movable hanger parallel shafts with the movable hanger support the outside.The utility model has two spans between the suspender compared with the prior art, and can be in harmonious proportion telescopic girder stressed evenly and the less advantage of flexural deformation of suspended object.

Description of drawings:

Fig. 1 is the front view of the utility model crane in bridge type telescopic girder operation transmission device, Fig. 2 be the A of Fig. 1 to partial view, Fig. 3 is the B-B cutaway view of Fig. 1.

The specific embodiment:

In conjunction with above accompanying drawing the utility model is elaborated, in order to solve the excessive problem of span between the adjacent rotating beam suspender of existing telescopic girder suspender crane in bridge type and telescopic girder 2 terminations 1, the fixing suspender in rotating beam outer end that revolution is supported 5 belows becomes removable suspender 4, for this reason, two horizontal shafts 12 are installed on the support of this suspender, axle is provided with roller 13, this roller is supported on and is fixed on the outer guide rail 14 of rotating beam side plate, be respectively equipped with sprocket wheel and gear on the S. A. 7 by reducing motor 6 drivings, the S. A. rotational support is on rotating beam 3, tooth bar engagement on gear and the telescopic girder, stretch in outside on the outer S. A. of rotating beam and respectively be provided with sprocket wheel, the outside at the two ends of rotating beam is provided with sprocket wheel 11, sprocket wheel 9 on the axle 8 of this sprocket wheel and S. A. below is on same horizon, and equal diameters, chain 10 place on above-mentioned two sprocket wheels, and its two ends are connected with removable suspender support respectively.

Principle of work of the present utility model is, when needs lift by crane than long article, reducing motor is rotated, rotation by gear on the S. A. and sprocket wheel drives telescopic girder movable outwards extending certain distance respectively, meanwhile, closed chain drive movable hanger moves certain distance respectively to the left and right sides, and the distance of the existing immovable suspender of the distance between two suspenders of this moment is little.For the distance between each suspender after telescopic girder is moved outward equates, (this moment, the force-bearing situation of rotating beam and telescopic girder the was better) number of teeth and ratio of number of teeth of sprocket wheel by the appropriate design gear is can realize this requirement at 2: 1.

Claims

1, a kind of transmission device of crane in bridge type rotating beam movable hanger, comprise rotating beam and suspender, it is characterized in that: stretch in outside on the S. A. of rotating beam both sides and respectively be provided with a sprocket wheel, two ends, the left and right sides at rotating beam respectively are provided with a pair of movable hanger, one end and the suspender support of two parallel shafts are connected, the roller of the other end is supported on the outer track of rotating beam side plate, on the axle below the S. A. termination, be provided with sprocket wheel, this sprocket wheel is relative with sprocket wheel on the side plate of rotating beam termination, chain places on the axle upper sprocket wheel and the sprocket wheel on the side plate of rotating beam termination of above-mentioned S. A. below, and its two ends are connected with the movable hanger support.

2, the transmission device of a kind of crane in bridge type rotating beam movable hanger as claimed in claim 1 is characterized in that: there is flange in the outside of the roller on the described movable hanger parallel shafts.