CN205312907U - Metallurgical two roof beam hoist formula hoist - Google Patents

Abstract

The utility model particularly relates to a metallurgical two roof beam hoist formula hoist, the purpose provides a safe and reliable, operates steadily, and the energy can be saved's metallurgical two roof beam hoist formula hoist, this hoist include dolly, bridge - crane frame, both ends are provided with complete machine running gear, operation around the drive hoist about bridge - crane frame, the trolley track of direction about the installation of bridge - crane frame girder upper portion, the operation is controlled to the dolly on the trolley track, the last cable that removes along with the dolly of still installing of bridge - crane frame, the hoist engine has included and has risen the motor, plays to rise the input shaft of motor and reduction gear, the reduction gear includes reduction gears, torque distribution mechanism. The utility model discloses a hoist can be according to the actual loading capacity left reel of adjustment at special lifting device both ends and the moment of torsion of right reel, make special lifting device rise to rise the process more steady, not run -off the straight to avoid wire rope to take place to transship, provide better protection to left wire rope and right wire rope.

Description

A kind of metallurgical twin beams winding type crane

Technical field

This utility model relates to technical field of crane equipment, particularly to a kind of metallurgical twin beams winding type crane.

Background technology

Traditional common double girder overhead crane, main by double; two girder crane span structures, traveling mechanism of the larger traveller, the dolly of hoisting mechanism, wheeling mechanism and electrical control etc. form, the major function of crane is an up mechanism's lifting cargo, then cart is longitudinally running, dolly is horizontal runs, goods handling to specifying position, reach the purpose of transport, handling and the equipment of installation; But in metallurgy industry, the special material of some industrial site, such as section bars such as the steel pipe of abnormity, rod irons, it is necessary to relies on special hanger to feed, then improves efficiency by crane for hoisting.

Special hanger both sides suspension centre wide apart, owing to suspender length is long, therefore it is typically all and steel wire rope and assembly pulley lifting are set at suspender two ends, but due to suspender two ends stress often and inconsistent, and crane of the prior art is all driven two groups of steel wire ropes by single motor, the pulling force of two groups of steel wire ropes cannot be changed, suspender so can be made easily to tilt to one end that its weight is big when hoisting, cause that the steel wire rope stress that this one end is connected is bigger, the life-span making steel wire rope is greatly reduced, suspender tilts excessively serious words it could even be possible to tumble simultaneously, abnormally dangerous.

Summary of the invention

For the problems referred to above, the purpose of this utility model is to provide a kind of safe and reliable, operates steadily, and saves the metallurgical twin beams winding type crane of the energy.

For achieving the above object, this utility model be the technical scheme is that a kind of metallurgical twin beams winding type crane, and including dolly, lifting crane span structure, two ends, described lifting crane span structure left and right are provided with complete machine travelling mechanism, drives and runs before and after crane; The trolley track of left and right directions is installed on lifting crane span structure crossbeam top, and dolly left and right on trolley track is run; Lifting crane span structure is also equipped with the cable moved with dolly; Described dolly is provided with hoist engine, described hoist engine includes lifting motor, lifting motor is connected with the power shaft of decelerator, it is characterised in that: described decelerator includes reducing gear, torque-splitting mechanism, and the input of described reducing gear is connected with the power shaft of lifting motor; Described torque-splitting mechanism includes torque input shaft, described torque input shaft one end is connected with the outfan of reducing gear, the other end is arranged on the housing of reductor by bearing, described torque input shaft is provided with the first idler gear, described first idler gear engages with the second idler gear on moment of torsion jackshaft, described moment of torsion jackshaft two ends, respectively through many friction plate clutch, are connected with the power shaft of left reel, right reel; Left reel is wound around left steel wire rope, right reel is wound around right steel wire rope; Being additionally provided with left chain wheel device, right pulley device on described dolly, left chain wheel device, right pulley device are connected with the two ends of special hanger, and left steel wire rope and right steel wire rope couple together described left chain wheel device and right pulley device and special hanger.

Preferably, between described lifting motor and reductor, gearshift is set, described gearshift includes the first axle, described one end of first axle is connected by shaft coupling with the outfan of lifting motor, the other end of described first axle, by the first combined cover that can slide along the first axle axial direction, is connected with one end of the second axle;The described other end of the second axle is connected with the input of decelerator, and the second axle is additionally provided with joint gear, and described joint gear is connected with the power shaft of retarder by the second clutch collar.

This utility model has the advantages that crane of the present utility model can adjust the moment of torsion of left reel and right reel according to the actual pay load at special hanger two ends; make the special hanger process that hoists more steady; not run-off the straight; and avoid steel wire rope to transship, provide better protection to left steel wire rope and right steel wire rope.

Accompanying drawing explanation

Fig. 1 is metallurgical twin beams winding type crane schematic diagram;

Fig. 2 is dolly schematic diagram;

Fig. 3 is decelerator schematic diagram;

Fig. 4 is gearshift schematic diagram.

Detailed description of the invention

A kind of metallurgical twin beams winding type crane as Figure 1-Figure 4, including dolly 1, lifting crane span structure 2, described lifting crane span structure about 2 two ends are provided with complete machine travelling mechanism 3, drive and run before and after crane; The trolley track 4 of left and right directions is installed on lifting crane span structure 2 crossbeam top, and dolly 1 left and right on trolley track 4 is run; Lifting crane span structure 2 is also equipped with the cable 5 moved with dolly 1; Described dolly 1 is provided with hoist engine, described hoist engine includes lifting motor 6, lifting motor 6 is connected with the power shaft of decelerator 7, described decelerator 7 includes reducing gear 8, torque-splitting mechanism, reducing gear 8 can be the wheeled reducing gear of multistage straight-tooth, can also being Worm-gear type reducing gear, the input of reducing gear 8 be connected with the outfan of lifting motor 6; Described torque-splitting mechanism includes torque input shaft 21, described torque input shaft 21 one end is connected with the outfan of reducing gear 8, the other end is arranged on the housing of decelerator 7 by bearing, described torque input shaft 21 is provided with the first idler gear 22, described first idler gear 22 engages with the second idler gear 24 on moment of torsion jackshaft 23, described moment of torsion jackshaft 23 two ends, respectively through many friction plate clutch 25, are connected with the power shaft of left reel 31, right reel 32.

Left reel 31 is wound around left steel wire rope 33, right reel 32 is wound around right steel wire rope 34; Described dolly 1 is additionally provided with left chain wheel device 35, right pulley device 36, left chain wheel device 35, right pulley device 36 are connected with the two ends of special hanger 37, and left steel wire rope 33 and the described left chain wheel device 35 of 34, right steel wire rope and right pulley device 36 and special hanger 37 couple together.

Being set to of weighing device, the bearing pin 38 that described left chain wheel device 35, right pulley device 36 are connected with special hanger 37 is the shearing gravity sensor of pivot pin, so can directly special hanger 37 and steel therein be weighed, the weight that makes to weigh is more accurate, it is to avoid the weight change of steel wire rope is to the impact of LOAD CELLS.

When using crane, first steel are loaded in special hanger 37, at this moment special hanger 37 is placed on the ground, left steel wire rope 33 and the non-stress of right steel wire rope 34, many friction plate clutch 25 at moment of torsion jackshaft 23 two ends are complete closure state, left reel 31, right reel 32 bias ratio be 50:50. when lifting motor 6 drives special hanger 37 to rise, the shearing gravity sensor of pivot pin at special hanger 37 two ends is weighed, and weight signal is passed to the controller of crane, left steel wire rope 33 is calculated and driving force ratio that right steel wire rope 34 should provide by it, then controller controls many friction plate clutch 325 action at moment of torsion jackshaft 23 two ends, make left reel 31, the moment of torsion basic of distribution demand of right reel 32 is adjusted, namely left reel 31 is adjusted according to the actual pay load at special hanger 37 two ends, the moment of torsion of right reel 32, make special hanger 37 process that hoists more steady, not run-off the straight, there is provided better protection to left steel wire rope 33 and right steel wire rope 34 simultaneously.

When steel are transferred to another place from a place by crane, need to rise special hanger 37, mobile, decline, in decline process, the gravitional force of available special hanger 37 and interior carried object thereof, make its automatic descending, therefore better embodiment is, between described lifting motor 6 and decelerator 7, gearshift 40 is set, described gearshift 40 includes the first axle 41, described one end of first axle 41 is connected by shaft coupling with the outfan of lifting motor 6, the other end of described first axle 41 first combined cover 42 by sliding along the first axle 41 axial direction, it is connected with one end of the second axle 43, the described other end of the second axle 43 is connected with the input of decelerator 7, and the second axle 43 is additionally provided with joint gear 44, and described joint gear 44 is connected with the power shaft of retarder 46 by the second clutch collar 45. described first clutch collar 42, the second clutch collar 45 can be the inertia-type lock loop synchronizer used in automotive transmission field, it is also possible to be the lock unit of gear sliding type.

When special hanger 37 needs to decline, controller controls the first clutch collar 42 by the first axle 41, second axle 43 separated, control the second clutch collar 45 to be connected between joint gear 44 and retarder 46 simultaneously, such special hanger 37 moves downward under gravity, and the speed that it moves downward can be controlled by retarder 46, described retarder 46 is electric motor type retarder, at this moment retarder 46 is equivalent to an electromotor, by retarder 46 and commutator, accumulator connects, gravitional force when namely can be declined by special hanger 37 is converted to electric energy, stored by accumulator.

When special hanger 37 needs to rise, then controller controls the first clutch collar 42, is connected by first axle the 510, second axle 43, control the second clutch collar 45 simultaneously, general's joint gear 44 is separated with retarder 46, then starts lifting motor 6, is risen by special hanger 37.

Claims (2)

1. a metallurgical twin beams winding type crane, including dolly (1), lifting crane span structure (2), described lifting crane span structure (2) two ends, left and right are provided with complete machine travelling mechanism (3), drive and run before and after crane; The trolley track (4) of left and right directions is installed on lifting crane span structure (2) crossbeam top, and dolly (1) runs in the upper left and right of trolley track (4); Lifting crane span structure (2) is also equipped with the cable (5) with dolly (1) movement; Described dolly (1) is provided with hoist engine, described hoist engine includes lifting motor (6), lifting motor (6) is connected with the power shaft of decelerator (7), it is characterized in that: described decelerator (7) includes reducing gear (8), torque-splitting mechanism, and the input of described reducing gear (8) is connected with the power shaft of lifting motor (6); Described torque-splitting mechanism includes torque input shaft (21), described torque input shaft (21) one end is connected with the outfan of reducing gear (8), the other end is arranged on the housing of decelerator (7) by bearing, described torque input shaft (21) is provided with the first idler gear (22), described first idler gear (22) is engaged with the second idler gear (24) on moment of torsion jackshaft (23), described moment of torsion jackshaft (23) two ends, respectively through many friction plate clutch (25), are connected with the power shaft of left reel (31), right reel (32); Left reel (31) is upper is wound around left steel wire rope (33), and right reel (32) is upper is wound around right steel wire rope (34);Described dolly (1) is additionally provided with left chain wheel device (35), right pulley device (36), left chain wheel device (35), right pulley device (36) are connected with the two ends of special hanger (37), and left steel wire rope (33) and right steel wire rope (34) couple together described left chain wheel device (35) and right pulley device (36) and special hanger (37).

2. a kind of metallurgical twin beams winding type crane according to claim 1, it is characterized in that: gearshift (40) is set between described lifting motor (6) and decelerator (7), described gearshift (40) includes the first axle (41), one end of described first axle (41) is connected by shaft coupling with the outfan of lifting motor (6), the other end of described first axle (41), by the first combined cover (42) that can slide along the first axle (41) axial direction, is connected with one end of the second axle (43); The other end of described second axle (43) is connected with the input of decelerator (7), and the second axle (43) is additionally provided with joint gear (44), and described joint gear (44) is connected by the power shaft of the second clutch collar (45) with retarder (46).