CN101214906A

CN101214906A - Orbit type gantry crane

Info

Publication number: CN101214906A
Application number: CN 200710173163
Authority: CN
Inventors: 张钢
Original assignee: Shanghai Gangji Heavy Industry Co Ltd
Current assignee: Shanghai Gangji Heavy Industry Co Ltd
Priority date: 2007-12-26
Filing date: 2007-12-26
Publication date: 2008-07-09

Abstract

The present invention relates to an orbit type gantry crane, comprising a crossbeam, an outrigger, a saddle beam, a hoisting mechanism and an orbit hanging trolley. The hosting mechanism is installed at the saddle beam. A steel wire led out by the hoisting mechanism is connected with a pulley at an orbit hanging crane hanging tool through a relevant pulley group. The hoisting mechanism is not installed at the trolley but is installed at the saddle beam at the lower part of the outrigger, thus the trolley has simple structure and greatly reduced weight, and the manufacturing technology of the trolley is simplified greatly; at the same time, because the installation position of the hoisting mechanism is placed at the saddle beam which is close to the ground, the hoisting mechanism is very convenient for maintaining; in addition, a novel single beam structure is adopted to the crossbeam, and a double-beam structure in the prior art is not adopted, so the whole crane weight is reduced greatly at the same time, and the borne pressure of the wheels of the crane is reduced greatly.

Description

A kind of orbit type gantry crane

Technical field

The present invention relates to the harbour container hoisting crane, more particularly, relate to a kind of formula gantry crane car.

Background technology

The continuous growth of the thriving demand of world's freight container traffic and China's container port throughput, the container handling technical equipment has been proposed to upgrade higher requirement, so press for the high efficiency Quayside container loading and unloading system of development and Design, to satisfy the requirement of boats and ships maximization and high speed to the hoisting crane capacity rating.Orbit type gantry crane is exactly a kind of of container handling technical equipment, referring to Fig. 1, it generally comprises, and crossbeam 10, supporting leg 20, track hang dolly 50, lifting mechanism 40 is formed, track hangs dolly 50 and slides in the eminence of hoisting crane, it utilizes steel rope to connect the suspender 60 of hoisting crane by assembly pulley, and suspender 60 is implemented the allocation and transportation of goods, when needs are changed the position, orbit type gantry crane slides along track, and arrival works on behind the desired location.

Referring to Fig. 1 and Fig. 2, the structure of present orbit type gantry crane has following defective:

1. lifting mechanism 40 is installed in track and hangs on the dolly 50, and the weight that causes track to hang dolly 50 like this increases greatly, causes track to hang dolly 50 structures and manufacturing process is also very complicated.

2. the crossbeam 10 of orbit type gantry crane is a twin-spar construction, and described supporting leg 20 supports the twin beams of described crossbeam 10, causes the weight of complete machine to increase like this, and corresponding cost also can increase.

Summary of the invention

The very big defective of weight at the dolly and the complete machine of present orbit type gantry crane the purpose of this invention is to provide a kind of orbit type gantry crane, and the weight of the present hoisting crane of weight ratio of its dolly and complete machine significantly reduces.

For achieving the above object, the invention provides a kind of orbit type gantry crane, comprise that crossbeam, supporting leg, saddle beam, lifting mechanism and track hang dolly, described supporting leg supports crossbeam, described saddle beam is installed in the supporting leg bottom, described track hangs dolly and flexibly connects crossbeam and be suitable for sliding on crossbeam, and described lifting mechanism is installed on the saddle beam, and the steel rope that described lifting mechanism is drawn connects sling pulley on the heavy-duty machine suspender of described track after through the associated sheaves group.

The diverse location that described crossbeam, track hang dolly and suspender all is equipped with several pulleys, the steel rope of first reel of described lifting mechanism has two exits, after described two exits at first pass through pulley on crossbeam one end, the pulley room that hangs on dolly, suspender and the crossbeam other end at track successively twines again, returns second reel of lifting mechanism at last again by the pulley on crossbeam one end.

Described crossbeam is a single-spar construction, and described supporting leg top has attachment face, and two described supporting legs are connected and fixed described crossbeam at the two ends of crossbeam by described attachment face respectively.

Around the described lifting mechanism and top has coaming plate and top board, and described coaming plate is installed on the described saddle beam, and the top of top board and coaming plate is connected.

Adopt a kind of orbit type gantry crane of the present invention, because its lifting mechanism is not installed on the dolly, and be mounted on the saddle beam of supporting leg bottom, alleviated the burden of dolly like this, simple in structure and the weight of dolly is significantly reduced, the manufacturing process of dolly is simplified greatly, because the lifting mechanism installation site is positioned on the overhead nearer saddle beam, makes that the maintenance of lifting mechanism is very convenient simultaneously; Its crossbeam has adopted later-model single-spar construction in addition, and do not adopt twin-spar construction of the prior art, so simultaneously the complete machine weight of hoisting crane is significantly reduced, hoisting crane wheel pressure greatly reduces, according to test, the hoisting crane that the wheel pressure ratio of hoisting crane of the present invention is traditional is less 30%, and wheel load is reduced to 20 tons with interior (wheel quantity is under 4 situations of taking turns) from original 25 tons.

Description of drawings

Fig. 1 is traditional track heavy-duty machine overall structure front view of slinging;

Fig. 2 is traditional track heavy-duty machine overall structure right elevation of slinging

Fig. 3 is a front view of the present invention;

Fig. 4 is a right elevation of the present invention;

Fig. 5 is the A-A-A-A cutaway view of Fig. 2;

Fig. 6 is that steel rope of the present invention and pulley winding concern scheme drawing;

Fig. 7 is the M place enlarged diagram of Fig. 3.

The specific embodiment

Further specify technical scheme of the present invention below in conjunction with drawings and Examples.

With reference to figure 3 and Fig. 4, described a kind of orbit type gantry crane, comprise crossbeam 10, supporting leg 20, saddle beam 30, lifting mechanism 40 and track hang dolly 50, described supporting leg 20 supports crossbeam 10, described saddle beam is installed in supporting leg 20 bottoms, described track hangs dolly 50 and flexibly connects crossbeam 10 and be suitable for slip on crossbeam 10, described lifting mechanism 40 is installed on the saddle beam 30, the steel rope 41 that described lifting mechanism 40 is drawn, 42 through connecting sling pulley on the heavy-duty machine suspender 60 of described track after the associated sheaves groups, crossbeam 10 is a single-spar construction, described supporting leg 20 tops have 21, two described supporting legs 20 of attachment face and are connected and fixed described crossbeam 10 at the two ends of crossbeam 10 by described attachment face 21 respectively.。

Below in conjunction with Fig. 5 and Fig. 4, detailed illustrate steel rope of the present invention and pulley twine relation, on the described crossbeam 10 pulley 11 is installed, 12,13,14,15,16, track hangs pulley 51 is installed on the

dolly

50,52,53,54, suspender 60 is equipped with

pulley

61,62,63,64, the steel rope of first reel 41 of described lifting mechanism 40 has two exits 411,412, steel rope exit 411 arrives pulley 51 through pulley 11, return pulley 51 and arrive pulley 13 through pulley 61 again through pulley 12, arrive pulley 63 and return pulley 53 through pulley 53 again, turn back to second reel 42 of lifting mechanism 40 through pulley 16; In like manner, the steel rope exit 412 of first reel 41 of described lifting mechanism 40 arrives pulley 52 through pulley 11, return pulley 52 and arrive pulley 15 through pulley 62 again through pulley 14, arrive pulley 64 and return pulley 54 through pulley 54 again, turn back to second reel 42 of lifting mechanism 40 through pulley 16.

In order to prevent that lifting mechanism 40 from being encroached on by wind and rain, around the described lifting mechanism 40 and top has coaming plate and top board, and described coaming plate is installed on the described saddle beam 30, and the top of top board and coaming plate is connected.

In addition, in order to realize verting of suspender, can by with the similar scheme of general bridge crane, referring to Fig. 3 and Fig. 7, end at the crossbeam 10 of lifting mechanism 40 opposite sides is provided with electric pushrod 70, the movable end 71 of described electric pushrod 70 is with corresponding and promote described steel rope by the direction of being scheduled to through the steel rope of crossbeam 10 top sheaves herein, and under the drive of steel rope, described track hangs the suspender 60 of dolly 50 and just realized verting like this.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of above embodiment.

Claims

1. orbit type gantry crane, comprise that crossbeam, supporting leg, saddle beam, lifting mechanism and track hang dolly, described supporting leg supports crossbeam, described saddle beam is installed in the supporting leg bottom, described track hangs dolly flexible connection crossbeam and is suitable for sliding on crossbeam, it is characterized in that: described lifting mechanism is installed on the saddle beam, and steel rope that described lifting mechanism is drawn connects sling pulley on the heavy-duty machine suspender of described track after through the associated sheaves group.

2. orbit type gantry crane as claimed in claim 1, it is characterized in that, the diverse location that described crossbeam, track hang dolly and suspender all is equipped with several pulleys, the steel rope of first reel of described lifting mechanism has two exits, after described two exits at first pass through pulley on crossbeam one end, the pulley room that hangs on dolly, suspender and the crossbeam other end at track successively twines again, returns second reel of lifting mechanism at last again by the pulley on crossbeam one end.

3. orbit type gantry crane as claimed in claim 1 is characterized in that, described crossbeam is a single-spar construction, and described supporting leg top has attachment face, and two described supporting legs are connected and fixed described crossbeam at the two ends of crossbeam by described attachment face respectively.

4. orbit type gantry crane as claimed in claim 1 is characterized in that, around the described lifting mechanism and top has coaming plate and top board, and described coaming plate is installed on the described saddle beam, and the top of top board and coaming plate is connected.