CN214879550U

CN214879550U - Lifting appliance for bridge crane

Info

Publication number: CN214879550U
Application number: CN202120753587.9U
Authority: CN
Inventors: 范旭东; 薛晖; 张跃; 吴建坤; 邬勇勇; 孟成宇
Original assignee: Ningbo Beilun Third Container Terminal Co Ltd; Ningbo Gangji Terminal Operators Co Ltd; Ningbo Cosco Jetty Management Co Ltd; Ningbo Yining Wharf Management Co Ltd
Current assignee: Ningbo Beilun Third Container Terminal Co Ltd; Ningbo Gangji Terminal Operators Co Ltd; Ningbo Cosco Jetty Management Co Ltd; Ningbo Yining Wharf Management Co Ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-11-26
Anticipated expiration: 2031-04-13

Abstract

The utility model relates to the technical field of lifting appliances, in particular to a lifting appliance for an axle crane, which comprises a lifting beam with a hollow inner part, wherein two groups of guide holes are symmetrically distributed at the bottom of the lifting beam, the number of each group of guide holes is two, a threaded rod is arranged in the lifting beam, a second bevel gear is fixedly connected on a rod body of the threaded rod, moving blocks are respectively and fixedly connected with the rod body of the threaded rod at the two sides of the second bevel gear in a threaded manner, the directions of the inner threads of the two moving blocks are opposite, two guide rods are fixedly connected at the bottom of the moving blocks, the guide holes are penetrated out from the bottom ends of the guide rods, a fixed plate is fixedly connected at the bottom of the guide rods, an air cylinder is fixedly connected at the bottom of the fixed plate, a clamping mechanism is arranged below the air cylinder, a steel wire rope is fixedly connected at the bottom of the lifting beam, and the steel wire rope is positioned between the two groups of guide holes, the lifting appliance for the axle crane can effectively prevent a lifted object from shaking after the object is lifted, the safety performance is good.

Description

Lifting appliance for bridge crane

Technical Field

The utility model relates to a hoist technical field, specifically speaking relates to a hoist for bridge crane.

Background

The lifting appliance is a device for lifting a heavy object in a lifting machine. The most common lifting devices for lifting finished articles are lifting hooks, lifting straps, lifting rings, lifting suction cups, clamps, forks and the like. Is widely applied to the hoisting industry. The lifting hook is one of the common lifting appliances in the bridge crane. However, after an object is lifted by the conventional lifting hook, the lifted object is prone to shaking after being lifted into the air, and therefore the conventional lifting hook has a great potential safety hazard. In view of this, we propose a spreader for a bridge crane.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hoist for bridge crane to solve at least one problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a lifting appliance for an axle crane comprises a lifting beam, a steel wire rope and lifting hooks, wherein the steel wire rope is fixedly connected to the bottom of the lifting beam, the lifting hooks are connected to the bottom of the steel wire rope, the interior of the lifting beam is hollow, two groups of guide holes are symmetrically distributed in the bottom of the lifting beam, the number of each group of guide holes is two, the steel wire rope is located between the two groups of guide holes, a threaded rod is arranged inside the lifting beam, a second bevel gear is fixedly connected to the rod body of the threaded rod, moving blocks are in threaded connection with the rod body of the threaded rod on two sides of the second bevel gear, the directions of internal threads of the two moving blocks are opposite, two guide rods are fixedly connected to the bottom of each moving block, the bottom ends of the guide rods penetrate through the guide holes, and a fixed plate is fixedly connected to the bottom ends of the guide rods, the bottom of the fixed plate is fixedly connected with an air cylinder, a clamping mechanism is arranged below the air cylinder, a motor is fixedly connected to the hanging beam, a first bevel gear is fixedly connected to the end portion of an output shaft of the motor, the first bevel gear is meshed with the second bevel gear, fixing seats are rotatably connected to two ends of the threaded rod, and the fixing seats are fixedly connected to the hanging beam.

Compared with the prior art, the beneficial effects of the utility model are that: the lifting appliance for the bridge crane has the advantages that through the arrangement of the clamping mechanism, the motor, the first bevel gear, the second bevel gear, the threaded rod, the moving blocks, the guide rods, the guide blocks, the fixing plate and the air cylinder, when the lifted object is lifted by the lifting hook, the shell and the clamping blocks are pushed to lift through the air cylinder according to the specific size of the lifted object, the clamping blocks are adjusted to be in proper height positions, then the motor is started to drive the first bevel gear to rotate, the second bevel gear and the threaded rod can be driven to rotate through the meshing of the first bevel gear and the second bevel gear, the two moving blocks are enabled to move close to each other, the two clamping blocks are driven to move close to each other to clamp the lifted object, the lifted object can be effectively prevented from shaking after the lifted object is lifted, the safety performance is good, the problem that the lifted object is easy to shake after being lifted into the air by the lifting hook used at present is solved, has great potential safety hazard.

Preferably, the clamping mechanism comprises a shell and a clamping block, the shell and the clamping block are arranged in a hollow mode, the clamping block is located outside the shell, the end portion of a piston rod of the air cylinder is fixedly connected with the shell, and a connecting mechanism for connecting the shell and the clamping block is arranged between the shell and the clamping block.

Preferably, the connecting mechanism comprises a plurality of pressing plates accommodated in the shell, connecting rods are fixedly connected to the pressing plates, one ends of the connecting rods, far away from the pressing plates, are fixedly connected with the clamping blocks, springs are fixedly connected to one sides of the pressing plates, far away from the connecting rods, and one ends of the springs, far away from the pressing plates, are fixedly connected with the shell.

Preferably, one side of the clamping block, which is far away from the connecting rod, is fixedly connected with a protective pad.

Preferably, the protection pad is made of a rubber material.

Preferably, the top of the hanging beam is fixedly connected with a plurality of lifting lugs.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the bottom structure of the middle suspension beam of the present invention.

Fig. 3 is a schematic cross-sectional structure diagram of the middle housing of the present invention.

Fig. 4 is a partial schematic structural view of the middle threaded rod, the first bevel gear, the second bevel gear and the moving block of the present invention.

The meaning of the reference symbols in the figures is: 1. a hanging beam; 10. a guide hole; 11. lifting lugs; 2. a clamping mechanism; 20. a housing; 21. a clamping block; 22. a connecting rod; 23. pressing a plate; 24. a spring; 25. a protective pad; 3. a fixing plate; 4. a cylinder; 50. a motor; 51. a first bevel gear; 52. a threaded rod; 53. a second bevel gear; 54. a moving block; 55. a guide bar; 56. a fixed seat; 6. a wire rope; 7. and (4) a lifting hook.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The utility model provides a technical scheme:

a lifting appliance for a bridge crane is shown in figures 1-2 and comprises a lifting beam 1, a steel wire rope 6 and a lifting hook 7, wherein the steel wire rope 6 is fixedly connected to the bottom of the lifting beam 1, the lifting hook 7 is connected to the bottom of the steel wire rope 6, the lifting beam 1 is hollow inside, two groups of symmetrically distributed guide holes 10 are formed in the bottom of the lifting beam 1, the number of each group of guide holes 10 is two, a plurality of lifting lugs 11 are fixedly connected to the top of the lifting beam 1, and the lifting beam 1 can be lifted conveniently through the lifting lugs 11. Referring to fig. 1 and 4, a threaded rod 52 is disposed inside the suspension beam 1, a second bevel gear 53 is fixedly connected to a body of the threaded rod 52, moving blocks 54 are respectively connected to two sides of the second bevel gear 53 on the body of the threaded rod 52 in a threaded manner, the internal thread directions of the two moving blocks 54 are opposite, and when the threaded rod 52 rotates, the two moving blocks 54 are driven to move close to each other or move away from each other. Two guide bars 55 are fixedly connected to the bottom of the moving block 54, the bottom ends of the guide bars 55 penetrate out of the guide holes 10, the bottom ends of the guide bars 55 are fixedly connected with the fixing plate 3, the bottom of the fixing plate 3 is fixedly connected with a cylinder 4, a clamping mechanism 2 is arranged below the cylinder 4, and the clamping mechanism 2 can be pushed through the cylinder 4 to adjust the height in a lifting mode.

In this embodiment, please refer to fig. 3, the clamping mechanism 2 includes a housing 20 and a clamping block 21, the interior of which is hollow, the clamping block 21 is located outside the housing 20, the end of the piston rod of the cylinder 4 is fixedly connected with the housing 20, the housing 20 and the clamping block 21 can be pushed by the cylinder 4 to go up and down, so that the clamping block 21 can be adjusted to a proper height position according to the specific size of the hung object, thereby being convenient for better clamping the hung object, when the hung object is lifted by the hook 7, the hung object can be effectively prevented from shaking, the safety performance of the device is enhanced, and a connecting mechanism for connecting the housing 20 and the clamping block 21 is arranged between the housing 20 and the clamping block. The connecting mechanism comprises a plurality of pressing plates 23 accommodated in the shell 20, connecting rods 22 are fixedly connected to the pressing plates 23, one ends, far away from the pressing plates 23, of the connecting rods 22 are fixedly connected with the clamping blocks 21, one sides, far away from the connecting rods 22, of the pressing plates 23 are fixedly connected with springs 24, one ends, far away from the pressing plates 23, of the springs 24 are fixedly connected with the shell 20, after the clamping blocks 21 clamp the hung object, when the clamping blocks 21 extrude the hung object, the connecting rods 22 can also have the force of extruding the pressing plates 23, the springs 24 are compressed through the pressing plates 23, a good buffering effect can be achieved, and the phenomenon that the hung object is damaged due to overlarge extrusion force of the clamping blocks 21 on the hung object is avoided.

Further, referring to fig. 3, a protection pad 25 is fixedly connected to a side of the clamping block 21 away from the connecting rod 22. The protective pad 25 is made of rubber materials which are soft and good in elasticity, can play a good role in protection, can reduce abrasion between the clamping block 21 and a hung object, and can effectively protect the clamping block 21 and the hung object.

In this embodiment, please refer to fig. 1 and 4, the steel wire rope 6 is located between the two sets of guiding holes 10, the object can be lifted by the hook 7, the motor 50 is fixedly connected to the hanging beam 1, the first bevel gear 51 is fixedly connected to the end of the output shaft of the motor 50, the first bevel gear 51 is engaged with the second bevel gear 53, the motor 50 is started to operate to drive the first bevel gear 51 to rotate, the second bevel gear 53 is engaged with the second bevel gear 53 through the first bevel gear 51, the second bevel gear 53 and the threaded rod 52 can be driven to rotate, the two ends of the threaded rod 52 are both rotatably connected with the fixing seats 56, the fixing seats 56 are fixedly connected to the hanging beam 1, and the threaded rod 52 can be rotated more stably through the arrangement of the fixing seats 56.

It should be noted that the motor 50 and the cylinder 4 are conventional technologies, and will not be described in detail herein.

When the lifting appliance for the bridge crane is used, a lifted object is firstly hung through the lifting hook 7, then the lifting beam 1 is driven by the bridge crane to ascend through the bridge crane so that the steel wire rope 6 on the lifting hook 7 is tensioned, then the shell 20 and the clamping block 21 are pushed to ascend and descend through the air cylinder 4 according to the specific size of the lifted object, the clamping block 21 is adjusted to a proper height position, then the motor 50 is started to drive the first bevel gear 51 to rotate, the first bevel gear 51 is meshed with the second bevel gear 53, the second bevel gear 53 and the threaded rod 52 can be driven to rotate, the two moving blocks 54 move close to each other, the two clamping blocks 21 are driven to move close to each other so as to clamp the lifted object, at the moment, the lifting beam 1 and the lifted object are lifted through the bridge crane, the lifted object can be effectively prevented from shaking after being lifted, and the safety performance is good.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a hoist for bridge crane, includes hanging beam (1), wire rope (6) and lifting hook (7), wire rope (6) fixed connection be in the bottom of hanging beam (1), just lifting hook (7) are connected the bottom of wire rope (6), its characterized in that: the steel wire rope hoisting device is characterized in that the interior of the hoisting beam (1) is hollow, two groups of guide holes (10) are symmetrically distributed at the bottom of the hoisting beam (1), the number of the guide holes (10) in each group is two, the steel wire rope (6) is positioned between the two groups of guide holes (10), a threaded rod (52) is arranged inside the hoisting beam (1), a second bevel gear (53) is fixedly connected onto the rod body of the threaded rod (52), moving blocks (54) are in threaded connection with the two sides of the second bevel gear (53) on the rod body of the threaded rod (52), the internal thread directions of the two moving blocks (54) are opposite, two guide rods (55) are fixedly connected onto the bottom of each moving block (54), the bottom ends of the guide rods (55) penetrate through the guide holes (10), and a fixing plate (3) is fixedly connected onto the bottom ends of the guide rods (55), the bottom fixedly connected with cylinder (4) of fixed plate (3), the below of cylinder (4) is equipped with clamping mechanism (2), fixedly connected with motor (50) on hanging beam (1), the first bevel gear (51) of output shaft end fixedly connected with of motor (50), first bevel gear (51) with second bevel gear (53) meshing, the both ends of threaded rod (52) all rotate and are connected with fixing base (56), fixing base (56) fixed connection is in on hanging beam (1).

2. A spreader for a bridge crane according to claim 1, wherein: clamping mechanism (2) are including inside casing (20) and the tight piece of clamp (21) that cavity set up, press from both sides tight piece (21) and be located the outside of casing (20), two press from both sides tight piece (21) and be located two between casing (20), the piston rod tip of cylinder (4) with casing (20) fixed connection, casing (20) with press from both sides and be equipped with the coupling mechanism who connects the two between tight piece (21).

3. A spreader for a bridge crane according to claim 2, wherein: the connecting mechanism comprises a plurality of pressing plates (23) accommodated in the shell (20), connecting rods (22) are fixedly connected to the pressing plates (23), one ends, far away from the pressing plates (23), of the connecting rods (22) are fixedly connected with the clamping blocks (21), springs (24) are fixedly connected to one sides, far away from the connecting rods (22), of the pressing plates (23), and one ends, far away from the pressing plates (23), of the springs (24) are fixedly connected with the shell (20).

4. A spreader for a bridge crane according to claim 3, wherein: one side of the clamping block (21) far away from the connecting rod (22) is fixedly connected with a protective pad (25).

5. A spreader for a bridge crane according to claim 4, wherein: the protective pad (25) is made of rubber materials.

6. A spreader for a bridge crane according to claim 1, wherein: the top of the hanging beam (1) is fixedly connected with a plurality of lifting lugs (11).