CN210620024U

CN210620024U - Anti-falling device of bridge crane

Info

Publication number: CN210620024U
Application number: CN201921490814.2U
Authority: CN
Inventors: 和辉; 和伟; 张西伟; 和西超; 王正茂
Original assignee: Shandong Shenzhou Machinery Co Ltd
Current assignee: Shandong Shenzhou Machinery Co Ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-05-26
Anticipated expiration: 2029-09-09

Abstract

The utility model belongs to the field of bridge crane protection equipment, in particular to a bridge crane anti-falling device, aiming at the problem that the articles hung on a hook are easy to fall off and cause safety accidents when the existing bridge crane works, the utility model provides a scheme which comprises two support columns and a cross beam, wherein the bottom of the cross beam is fixedly connected with a fixed groove, a threaded shaft is rotationally connected with the fixed groove, a threaded plate is connected with the threaded shaft by screw threads, the bottom of the threaded plate is fixedly connected with a sliding sleeve, one side of the two support columns which are close to each other is fixedly connected with a sliding rod, and the sliding sleeve is connected with the sliding rod in a sliding way, the utility model has reasonable structure, under the influence of gravity, a baffle can move downwards and be clamped with a clamping groove, thereby the opening part of a hook can be blocked, and the articles can be effectively prevented from falling off from, the safety accidents are caused, and the safety of the bridge crane is improved.

Description

Anti-falling device of bridge crane

Technical Field

The utility model relates to a bridge crane protective apparatus technical field especially relates to a bridge crane prevents device that falls.

Background

The bridge crane is a hoisting device which is transversely erected above workshops, warehouses and material yards for hoisting materials, because the two ends of the bridge crane are located on high cement columns or metal supports and are shaped like a bridge, the bridge frame of the bridge crane longitudinally runs along rails laid on the elevated frames on the two sides, the space below the bridge frame can be fully utilized for hoisting the materials, the bridge crane is not hindered by ground equipment, and the bridge crane is a hoisting machine with the widest application range and the largest quantity.

When the existing bridge crane works, articles hung on a lifting hook are easy to fall off, so that safety accidents are caused, and the bridge crane falling prevention device is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the hanging article on the hook is easy to fall off when the bridge crane in the prior art is in operation, which causes the safety accident, and providing a falling-proof device for the bridge crane.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a falling-preventing device of a bridge crane comprises two supporting columns and a cross beam, wherein the bottom of the cross beam is fixedly connected with a fixed groove, a threaded shaft is rotationally connected in the fixed groove, a threaded plate is in threaded connection with the threaded shaft, the bottom of the threaded plate is fixedly connected with a sliding sleeve, one side, close to each other, of the two supporting columns is fixedly connected with a sliding rod, the sliding sleeve is in sliding connection with the sliding rod, the bottom of the sliding sleeve is fixedly connected with a lifting plate, the two sides of the lifting plate are respectively in sliding connection with one side, close to each other, of the two supporting columns, the bottom of the lifting plate is movably connected with a rack, the bottom of the rack is fixedly connected with a hook, one end of the hook is fixedly connected with a fixed plate, a gear is meshed with the rack, a rotating shaft, the other end fixedly connected with sleeve pipe of couple, sliding connection has the baffle in the sleeve pipe, the top of baffle extend to sheathed tube top and with the one end fixed connection of stay cord, the draw-in groove has been seted up at the top of fixed plate, the bottom of baffle extends to sheathed tube bottom below and blocks with the draw-in groove mutually, receives under the influence of gravity at the couple, can make the baffle move down and block with the draw-in groove, and then can carry out the shutoff with the opening part of couple, can effectually prevent that article can follow the couple and drop in the transportation, solved the problem of proposing among the background art.

Preferably, a first motor is fixedly connected to the inner wall of the top of the fixing groove, a worm wheel is fixedly connected to the output shaft of the first motor, a worm is rotatably connected to the inner wall of one side of the fixing groove, the worm wheel is meshed with the worm, one end of the worm is fixedly connected with one end of the threaded shaft, the first motor, the worm wheel and the worm are arranged, and power can be provided for the threaded shaft.

Preferably, the mounting groove has been seted up to one side of support column, fixedly connected with second motor on the top inner wall of mounting groove, fixedly connected with bull stick on the output shaft of second motor, the bottom of bull stick rotates with the bottom inner wall of mounting groove to be connected, one side of lifter plate extend to the mounting groove in and with bull stick threaded connection, set up second motor and bull stick, can make things convenient for the lifter plate to go up and down, make things convenient for getting of article to put.

Preferably, the bottom fixedly connected with buffer board of sliding sleeve, the dashpot has been seted up to the bottom of buffer board, sliding connection has the sliding plate in the dashpot, the bottom fixedly connected with dead lever of sliding plate, the sliding connection of dead lever and lifter plate, the bottom fixedly connected with reset spring of dead lever, reset spring's bottom and the top fixed connection of rack, the top fixedly connected with extension spring of sliding plate, extension spring's top and the top inner wall fixed connection of dashpot set up dashpot and sliding plate, can make can not take place the offset when the lifter plate descends, and extension spring can provide reset power for the lifter plate.

Preferably, the top fixedly connected with gag lever post of threading board, the spout has been seted up on the top inner wall of fixed slot, the top of gag lever post extend to in the spout and with the top inner wall sliding connection of spout, set up spout and gag lever post, can make the threading board can not rotate along with the screw shaft, and can steadily move, can not take place the offset.

The utility model discloses in, a bridge crane prevents device that falls owing to set up the rack, receives the effect of gravity at the couple under, can drive rack downstream, and rack removal can make the gear drive pivot rotate, and the pivot rotates can make the reel rotate, and the reel can be replayed the stay cord, and then can make the baffle descend and with draw-in groove looks chucking, just so can carry out the shutoff with the opening part of couple, can effectually prevent that article can follow the couple and drop in the transportation, cause the emergence of incident.

Owing to set up first motor, first motor can make the worm wheel drive the worm and rotate, and the worm can make the screw thread axle rotate, and then can make the threading board drive the article on the couple and remove, makes things convenient for the transportation of article, improves conveying efficiency greatly.

The utility model discloses it is rational in infrastructure, receive under the influence of gravity at the couple, can make baffle downstream clamp with the draw-in groove, and then can carry out the shutoff with the opening part of couple, can effectually prevent that article can follow the couple and drop in the transportation, cause the emergence of incident, improved bridge crane's security.

Drawings

Fig. 1 is a schematic view of a structure of a bridge crane falling prevention device provided by the present invention;

fig. 2 is a schematic view of a gear and rack meshing structure of an anti-falling device of a bridge crane provided by the present invention;

fig. 3 is an enlarged schematic structural view of a part a of the anti-falling device of the bridge crane according to the present invention;

fig. 4 is the enlarged schematic structural diagram of the part a of the anti-falling device for a bridge crane provided by the utility model.

In the figure: the device comprises a support column 1, a cross beam 2, a fixing groove 3, a threaded shaft 4, a threaded plate 5, a sliding sleeve 6, a sliding rod 7, a lifting plate 8, a rack 9, a hook 10, a fixing plate 11, a gear 12, a rotating shaft 13, a reel 14, a pull rope 15, a sleeve 16, a baffle 17, a first motor 18, a worm wheel 19, a worm 20, a limiting rod 21, a buffer plate 22, a buffer groove 23, a sliding plate 24, a tension spring 25, a second motor 26 and a rotating rod 27.

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.

Example one

Referring to fig. 1-4, a bridge crane anti-falling device comprises two supporting columns 1 and a crossbeam 2, a fixing groove 3 is fixedly connected to the bottom of the crossbeam 2, a threaded shaft 4 is rotatably connected to the fixing groove 3, a threaded plate 5 is threadedly connected to the threaded shaft 4, a sliding sleeve 6 is fixedly connected to the bottom of the threaded plate 5, a sliding rod 7 is fixedly connected to one side of the two supporting columns 1 close to each other, the sliding sleeve 6 is slidably connected to the sliding rod 7, a lifting plate 8 is fixedly connected to the bottom of the sliding sleeve 6, two sides of the lifting plate 8 are slidably connected to one side of the two supporting columns 1 close to each other respectively, a rack 9 is movably connected to the bottom of the lifting plate 8, a hook 10 is fixedly connected to the bottom of the rack 9, a fixing plate 11 is fixedly connected to one end of the hook 10, a gear 12 is engaged to the rack, the pull rope 15 is wound on the reel 14, the other end of the hook 10 is fixedly connected with a sleeve 16, a baffle 17 is connected in the sleeve 16 in a sliding mode, the top of the baffle 17 extends to the position above the top of the sleeve 16 and is fixedly connected with one end of the pull rope 15, a clamping groove is formed in the top of the fixing plate 11, and the bottom of the baffle 17 extends to the position below the bottom of the sleeve 16 and is clamped with the clamping groove.

The utility model discloses in, the first motor 18 of fixedly connected with on the top inner wall of fixed slot 3, fixedly connected with worm wheel 19 on the output shaft of first motor 18 rotates on one side inner wall of fixed slot 3 and is connected with worm 20, and worm wheel 19 meshes with worm 20 mutually, the one end of worm 20 and the one end fixed connection of threaded shaft 4.

The utility model discloses in, the mounting groove has been seted up to one side of support column 1, fixedly connected with second motor 26 on the top inner wall of mounting groove, fixedly connected with bull stick 27 on the output shaft of second motor 26, and the bottom of bull stick 27 is rotated with the bottom inner wall of mounting groove and is connected, one side of lifter plate 8 extend to in the mounting groove and with bull stick 27 threaded connection.

The utility model discloses in, sliding sleeve 6's bottom fixedly connected with buffer board 22, buffer slot 23 has been seted up to buffer board 22's bottom, sliding connection has sliding plate 24 in buffer slot 23, sliding plate 24's bottom fixedly connected with dead lever, the sliding connection of dead lever and lifter plate 8, the bottom fixedly connected with reset spring of dead lever, reset spring's bottom and rack 9's top fixed connection, sliding plate 24's top fixedly connected with extension spring 25, extension spring 25's top and buffer slot 23's top inner wall fixed connection.

The utility model discloses in, threaded plate 5's top fixedly connected with gag lever post 21 has seted up the spout on the top inner wall of fixed slot 3, the top of gag lever post 21 extend to in the spout and with the top inner wall sliding connection of spout.

Example two

Referring to fig. 1-4, a bridge crane anti-falling device comprises two supporting columns 1 and a beam 2, a fixing groove 3 is welded at the bottom of the beam 2, a threaded shaft 4 is rotatably connected in the fixing groove 3, a threaded plate 5 is threadedly connected on the threaded shaft 4, a sliding sleeve 6 is welded at the bottom of the threaded plate 5, a sliding rod 7 is welded at one side of the two supporting columns 1 close to each other, the sliding sleeve 6 is slidably connected with the sliding rod 7, a lifting plate 8 is welded at the bottom of the sliding sleeve 6, two sides of the lifting plate 8 are slidably connected with one side of the two supporting columns 1 close to each other respectively, a rack 9 is movably connected at the bottom of the lifting plate 8, a hook 10 is welded at the bottom of the rack 9, a fixing plate 11 is welded at one end of the hook 10, a gear 12 is meshed on the rack 9, a rotating shaft 13 is, the other end of the hook 10 is welded with a sleeve 16, a baffle 17 is connected in the sleeve 16 in a sliding manner, the top of the baffle 17 extends to the top of the sleeve 16 and is welded with one end of the pull rope 15, the top of the fixing plate 11 is provided with a clamping groove, the bottom of the baffle 17 extends to the bottom of the sleeve 16 and is clamped with the clamping groove, the baffle 17 can move downwards and is clamped with the clamping groove under the influence of gravity of the hook 10, so that the opening of the hook 10 can be blocked, articles can be effectively prevented from falling off from the hook 10 in the transportation process, the problems in the background art are solved, as the rack 9 is arranged, under the influence of gravity of the hook 10, the rack 9 can be driven to move downwards, the rack 9 can be moved to drive the gear 12 to drive the rotating shaft 13 to rotate, the rotating shaft 13 can be rotated to drive the reel 14 to rotate, and the pull rope 15, and then can make baffle 17 descend and with draw-in groove looks card dress, just so can carry out the shutoff with the opening part of couple 10, can effectually prevent that article can drop from couple 10 in the transportation, cause the emergence of incident, owing to set up first motor 18, first motor 18 can make worm wheel 19 drive worm 20 rotate, worm 20 can make threaded shaft 4 rotate, and then can make the flighting 5 drive the article on the couple 10 and remove, make things convenient for the transportation of article, improve the conveying efficiency greatly, the utility model discloses it is rational in infrastructure, receive under the influence of gravity at couple 10, can make baffle 17 move down and clamp with the draw-in groove, and then can carry out the shutoff with the opening part of couple 10, can effectually prevent that article can drop from couple 10 in the transportation, cause the emergence of incident, improved bridge crane's security.

The utility model discloses in, the welding has first motor 18 on the top inner wall of fixed slot 3, and the welding has worm wheel 19 on the output shaft of first motor 18, rotates on one side inner wall of fixed slot 3 and is connected with worm 20, and worm wheel 19 meshes with worm 20 mutually, and the one end of worm 20 welds with the one end of threaded shaft 4 mutually, sets up first motor 18, worm wheel 19 and worm 20, can provide power for threaded shaft 4.

The utility model discloses in, the mounting groove has been seted up to one side of support column 1, and the welding has second motor 26 on the top inner wall of mounting groove, and the welding has bull stick 27 on second motor 26's the output shaft, and the bottom of bull stick 27 rotates with the bottom inner wall of mounting groove to be connected, and one side of lifter plate 8 extends to in the mounting groove and with bull stick 27 threaded connection, sets up second motor 26 and bull stick 27, can make things convenient for lifter plate 8 to go up and down, makes things convenient for getting of article and puts.

The utility model discloses in, the bottom welding of sliding sleeve 6 has buffer board 22, buffer slot 23 has been seted up to buffer board 22's bottom, sliding connection has sliding plate 24 in buffer slot 23, the bottom welding of sliding plate 24 has the dead lever, the sliding connection of dead lever and lifter plate 8, the bottom welding of dead lever has reset spring, reset spring's bottom welds with the top of rack 9 mutually, the top welding of sliding plate 24 has extension spring 25, extension spring 25's top welds with the top inner wall of buffer slot 23 mutually, set up buffer slot 23 and sliding plate 24, can make and can not take place the offset when lifter plate 8 descends, extension spring 25 can provide the power that resets for lifter plate 8.

The utility model discloses in, the welding of the top of screw plate 5 has gag lever post 21, has seted up the spout on the top inner wall of fixed slot 3, and the top of gag lever post 21 extends to in the spout and with the top inner wall sliding connection of spout, set up spout and gag lever post 21, can make screw plate 5 can not rotate along with threaded shaft 4, and can steadily move, can not take place the offset.

In the utility model, when the crane is required to convey articles, the second motor 26 is started firstly, the output shaft of the second motor 26 can make the rotating rod 27 rotate, because the rotating rod 27 is in threaded connection with the lifting plate 8, the rotating rod 27 rotates to make the lifting plate 8 move downwards, and then the hook 10 can be driven to move downwards, and then the articles are hung on the hook 10, at the moment, the hook 10 can move downwards under the action of gravity, the hook 10 moves downwards to make the rack 9 move downwards, at the moment, the reset spring is stretched, the rack 9 moves to make the gear 12 drive the rotating shaft 13 to rotate, the rotating shaft 13 can make the reel 14 rotate, the stay cord 15 can be played back by the rotation of the reel 14, the stay cord 15 can make the baffle 17 descend and then be clamped with the clamping groove, so that the opening of the hook 10 can be blocked, the articles can be effectively prevented from dropping in transportation, and safety accidents are caused, then the second motor 26 is reversely rotated to make the lifting plate 8 move upwards, when the lifting plate moves to a proper position, the second motor 26 is closed, then the first motor 18 is started, the output shaft of the first motor 18 drives the worm wheel 19 to rotate, the worm wheel 19 rotates to drive the worm 20 to rotate, the worm 20 rotates to drive the threaded shaft 4 to rotate, because the threaded shaft 4 is in threaded connection with the threaded plate 5, the threaded plate 5 moves due to the rotation of the threaded shaft 4, the threaded plate 5 moves to drive the sliding sleeve 6 to slide on the sliding rod 7, and further the object on the hook 10 can move, when the lifting plate moves to a proper position, the first motor 18 is closed, then the second motor 26 is opened to make the hook 10 descend, and then the object is separated from the hook 10, and because the hook 10 loses the gravity, under the action of the reset spring, the hook 10 is reset to the rack 9, and further the rotating shaft 13 can drive the reel 14 to reversely rotate, at this time, the pulling rope 15 is tightened to pull the baffle 17 upwards, so that the opening of the hook 10 is opened, and then the article is taken down.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a bridge crane anti-falling device, includes two support columns (1) and crossbeam (2), its characterized in that, the bottom fixedly connected with fixed slot (3) of crossbeam (2), the internal rotation of fixed slot (3) is connected with screw shaft (4), threaded connection has screw plate (5) on screw shaft (4), the bottom fixedly connected with sliding sleeve (6) of screw plate (5), one side fixedly connected with slide bar (7) that two support columns (1) are close to each other, sliding sleeve (6) and slide bar (7) sliding connection, the bottom fixedly connected with lifter plate (8) of sliding sleeve (6), the both sides of lifter plate (8) respectively with one side sliding connection that two support columns (1) are close to each other, the bottom swing joint of lifter plate (8) has rack (9), the bottom fixedly connected with couple (10) of rack (9), the one end fixedly connected with fixed plate (11) of couple (10), the meshing has gear (12) on rack (9), fixedly connected with pivot (13) are gone up in gear (12), fixed cover is equipped with reel (14) on pivot (13), around being equipped with stay cord (15) on reel (14), the other end fixedly connected with sleeve pipe (16) of couple (10), sliding connection has baffle (17) in sleeve pipe (16), the top of baffle (17) extend to the top of sleeve pipe (16) and with the one end fixed connection of stay cord (15), the draw-in groove has been seted up at the top of fixed plate (11), the bottom of baffle (17) extends to the bottom below of sleeve pipe (16) and clamps mutually with the draw-in groove.

2. The bridge crane falling prevention device as claimed in claim 1, wherein a first motor (18) is fixedly connected to the inner wall of the top of the fixing groove (3), a worm wheel (19) is fixedly connected to the output shaft of the first motor (18), a worm (20) is rotatably connected to one inner wall of the fixing groove (3), the worm wheel (19) is meshed with the worm (20), and one end of the worm (20) is fixedly connected to one end of the threaded shaft (4).

3. The bridge crane falling prevention device according to claim 1, wherein a mounting groove is formed in one side of the support column (1), a second motor (26) is fixedly connected to the inner wall of the top of the mounting groove, a rotating rod (27) is fixedly connected to an output shaft of the second motor (26), the bottom end of the rotating rod (27) is rotatably connected to the inner wall of the bottom of the mounting groove, and one side of the lifting plate (8) extends into the mounting groove and is in threaded connection with the rotating rod (27).

4. The bridge crane falling prevention device according to claim 1, wherein a buffer plate (22) is fixedly connected to the bottom of the sliding sleeve (6), a buffer groove (23) is formed in the bottom of the buffer plate (22), a sliding plate (24) is slidably connected to the buffer groove (23), a fixed rod is fixedly connected to the bottom of the sliding plate (24), the fixed rod is slidably connected to the lifting plate (8), a return spring is fixedly connected to the bottom of the fixed rod, the bottom end of the return spring is fixedly connected to the top of the rack (9), an extension spring (25) is fixedly connected to the top of the sliding plate (24), and the top end of the extension spring (25) is fixedly connected to the inner wall of the top of the buffer groove (23).

5. The bridge crane falling prevention device according to claim 1, wherein a limiting rod (21) is fixedly connected to the top of the thread plate (5), a sliding groove is formed in the inner wall of the top of the fixing groove (3), and the top of the limiting rod (21) extends into the sliding groove and is slidably connected with the inner wall of the top of the sliding groove.