CN202131023U

CN202131023U - Two-beam bridge crane

Info

Publication number: CN202131023U
Application number: CN201120205101U
Authority: CN
Inventors: 王守岗; 钱永强; 朱海剑; 潘小虎
Original assignee: Changzhou Changkuang Hoisting Machinery Co Ltd
Current assignee: Changzhou Changkuang Hoisting Machinery Co Ltd
Priority date: 2011-06-17
Filing date: 2011-06-17
Publication date: 2012-02-01
Anticipated expiration: 2021-06-17

Abstract

A two-beam bridge crane is provided with a bridge rack, crane travel mechanisms and a trolley, wherein the crane travel mechanisms are arranged at two ends of a main beam; the trolley is arranged on the bridge rack, and provided with a main hoisting mechanism, an auxiliary hoisting mechanism, a trolley travel mechanism, a trolley rack, a main lifting hook component and an auxiliary lifting hook component; the main hoisting mechanism, the auxiliary hoisting mechanism and the trolley travel mechanism are mounted on the trolley rack; the trolley rack comprises a main frame and an auxiliary frame; and the trolley travel mechanism is provided with a speed reducer, a brake and an electric motor. The utility model is characterized in that the speed reducer, the brake and the electric motor are connected through a coupler into a whole horizontally arranged on a platform of the main frame; the limiting size is reduced, the sizes and the manufacturing costs of a vehicle body and a vehicle track are reduced, the maintenance and the replacement are convent, the dead weight is light, the wheel pressure is low, and the performance is reliable.

Description

A kind of twin beam overhead bridge crane

Technical field

The utility model relates to a kind of hoisting crane, relates in particular to a kind of twin beam overhead bridge crane.

Background technology

Crane in bridge type be crossbearer in the workshop, warehouse and the sky, the stock ground weight-lifting equipment that carries out the material handling.Its two ends are seated on the tall and big concrete column or metallic support.Crane in bridge type generally is made up of monkey, crane span structure operating unit and crane span structure metal construction; Lifting mechanism comprises electrical motor, drg, reductor, reel and assembly pulley; Electrical motor drives reel through reductor and rotates, and steel rope is put down, with the up-down weight around coiling or from reel.But the limiting size of existing hoisting crane is higher, and weight is bigger, is not easy to transportation.

The utility model content

The purpose of the utility model is to overcome the defective that prior art exists, and a kind of twin beam overhead bridge crane from heavy and light, stable working is provided.

The utility model solves the technical scheme that its technical matters adopted: a kind of twin beam overhead bridge crane has crane span structure, traveling mechanism of the larger traveller and dolly; Said traveling mechanism of the larger traveller is arranged on girder two ends, and said dolly is arranged on the crane span structure, and said dolly has main hoisting mechanism; Auxiliary hoisting mechanism, wheeling mechanism, trolley frame; Main hook assembly, secondary hook assembly; Described main hoisting mechanism, auxiliary hoisting mechanism, wheeling mechanism are installed on the trolley frame; Said trolley frame is made up of main car frame and subframe; Said wheeling mechanism has reductor, drg, electrical motor, it is characterized in that: said reductor, drg, electrical motor link into an integrated entity to sit through coupler and crouch on the platform of main car frame.

The described main hoisting mechanism of technique scheme has the pulley beam, and the two ends of said pulley beam are positioned in the posting on the main car frame.

The centre of the said pulley beam of technique scheme is equipped with fixed pulley.

A girder of the said dolly of technique scheme is provided with electric system.

Hinge is connected between the said main car frame of technique scheme and the subframe.

The said main hook assembly of technique scheme is intertwined and connected with steel rope on the said fixed pulley.

The beneficial effect of the utility model:

(1) the said reductor of the utility model, drg, electrical motor link into an integrated entity through coupler, have reduced limiting size, make weight saving; Reduced the size and the manufacturing cost of car body and track, had convenient maintenance and replacement, from heavy and light; Wheel load is little, the characteristics of dependable performance.

(2) the said reductor of the utility model, drg, electrical motor are sat and are crouched one jiao of trolley frame, have reduced the center of gravity of wheeling mechanism, make work more steady.

(3) two ends of the said pulley beam of the utility model are positioned in the posting on the said longeron, can move by actv. restriction pulley beam.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the birds-eye view of Fig. 1.

Fig. 3 is the structural representation of the dolly main hoisting mechanism of the utility model.

Fig. 4 is the birds-eye view of the dolly of the utility model.

1. crane span structures among the figure, 11. electric systems, 2. traveling mechanism of the larger traveller, 3. dolly, 31. main hoisting mechanisms, 311. pulley beams; 312. fixed pulley, 32. auxiliary hoisting mechanisms, 33. wheeling mechanisms, 331. reductors, 332. brakes; 333. electrical motor, 334. coupler, 34. trolley frames, 341. main car frames, 342. subframes; 343. posting, 35. main hook assemblies, 36. secondary hook assemblies, 37. steel ropes, 38. girders.

The specific embodiment

To combine accompanying drawing that the utility model is described further below.

A kind of twin beam overhead bridge crane shown in Fig. 1-4 has crane span structure 1, traveling mechanism of the larger traveller 2 and dolly 3; Traveling mechanism of the larger traveller 2 is arranged on girder 38 two ends, and dolly 3 is arranged on the crane span structure 1, and dolly 3 is walked on crane span structure 1; Dolly 3 has main hoisting mechanism 31, auxiliary hoisting mechanism 32, wheeling mechanism 33; Trolley frame 34, main hook assembly 35, secondary hook assembly 36; Main hoisting mechanism 31, auxiliary hoisting mechanism 32, wheeling mechanism 33 are installed on the trolley frame 34; Trolley frame 34 is made up of main car frame 341 and subframe 342; Hinge is connected between main car frame 341 and the subframe 342; Wheeling mechanism 33 has reductor 331, drg 332, electrical motor 333, and reductor 331, drg 332, electrical motor 333 link into an integrated entity to sit through coupler 334 and crouch on the platform of main car frame 341, and promptly wheeling mechanism 33 is suspended on the crossbeam outside; Wheeling mechanism 33 lower ends are provided with support beam 39; Main hoisting mechanism 31 has pulley beam 311, and the two ends of pulley beam 311 are positioned in the posting 343 on the main car frame 341, and the inside middle of pulley beam 311 is equipped with fixed pulley 312; A girder 38 of dolly 3 is provided with electric system 11, and main hook assembly 35 is intertwined and connected with steel rope 37 on the fixed pulley 312.

During work; Dolly 3 moves on crane span structure 1 under the driving of wheeling mechanism 33, and main hoisting mechanism 31, auxiliary hoisting mechanism 32 liftings drive through the starter of corresponding mechanism; The retarder of corresponding mechanism drives the reel rotation; Through the flexible lifting of steel rope, cart moves on the cart orbit under the driving of traveling mechanism of the larger traveller 2.

Should be appreciated that specific embodiment described above only is used to explain the utility model, and be not used in qualification the utility model.By the spirit conspicuous variation of being extended out of the utility model or change and still be among the protection domain of the utility model.

Claims

1. a twin beam overhead bridge crane has crane span structure (1), traveling mechanism of the larger traveller (2) and dolly (3); Said traveling mechanism of the larger traveller (2) is arranged on a girder (38) two ends, and said dolly (3) is arranged on the crane span structure (1), and said dolly (3) has main hoisting mechanism (31); Auxiliary hoisting mechanism (32), wheeling mechanism (33), trolley frame (34); Main hook assembly (35), secondary hook assembly (36); Described main hoisting mechanism (31), auxiliary hoisting mechanism (32), wheeling mechanism (33) are installed on the trolley frame (34); Said trolley frame (34) is made up of main car frame (341) and subframe (342); Said wheeling mechanism (33) has reductor (331), drg (332), electrical motor (333), it is characterized in that: said reductor (331), drg (332), electrical motor (333) link into an integrated entity to sit through coupler (334) and crouch on the platform of main car frame (341).

2. twin beam overhead bridge crane according to claim 1 is characterized in that: said wheeling mechanism (33) is suspended on the crossbeam outside, and said wheeling mechanism (33) lower end is provided with support beam (39).

3. twin beam overhead bridge crane according to claim 1 is characterized in that: said main hoisting mechanism (31) has pulley beam (311), and the two ends of said pulley beam (311) are positioned in the posting (343) on the main car frame (341).

4. twin beam overhead bridge crane according to claim 3 is characterized in that: fixed pulley (312) is installed in the middle of the said pulley beam (311).

5. twin beam overhead bridge crane according to claim 1 is characterized in that: said main hook assembly (35) is intertwined and connected with steel rope (37) on the said fixed pulley (312).

6. twin beam overhead bridge crane according to claim 1 is characterized in that: hinge is connected between said main car frame (341) and the subframe (342).

7. twin beam overhead bridge crane according to claim 1 is characterized in that: a girder (38) of said dolly (3) is provided with electric system (11).