CN220149031U - Gantry crane with telescopic main beam - Google Patents

Abstract

The utility model belongs to the technical field of cranes, in particular to a girder telescopic gantry crane, which comprises two supporting leg boxes, wherein the top parts of the two supporting leg boxes are fixedly provided with the same protective box, and the right side of the protective box is fixedly provided with a motor box; the inner wall on the right side of the motor case is rotationally provided with a first motor, an output shaft of the first motor is rotationally connected with the inner wall on the left side of the protective case, the inner wall on the bottom of the supporting leg case is rotationally provided with a first screw rod, the top end of the first screw rod extends into the protective case, and a tooth-moving mechanism is arranged between the first motor and the first screw rod. The lifting mechanism is reasonable in design, the gear moving mechanism and the lifting mechanism are arranged, so that the main beam box can be driven to lift, the main beam box can be stretched up and down, the lifting effect can be enhanced, and the potential safety hazard can be avoided.

Description

Gantry crane with telescopic main beam

Technical Field

The utility model relates to the technical field of crane equipment, in particular to a gantry crane with a telescopic girder.

Background

The portal crane is a deformation of bridge crane, is mainly used for loading and unloading operations of outdoor goods yards, stock yards and bulk cargos at ports, has a metal structure like a portal frame, is provided with two supporting legs below a bearing main beam, can directly walk on a track on the ground, can be provided with overhanging cantilever beams at two ends of the main beam, and has the characteristics of high field utilization rate, large operation range, wide application range, strong universality and the like, and is widely used in the goods yards at ports.

At present, a scalable overhead crane in girder both sides that chinese patent bulletin of bulletin number CN213231267U was published, including main beam pole, motor and play pouring weight and lift movable assembly, the welding of girder pole top both sides has lift movable assembly, the threaded rod that extends to the girder pole inside is installed to the output of motor, the drive block is installed through the helicitic texture in the threaded rod outside, the welding of drive block bottom has the bracing piece, the welding of bracing piece bottom has the fixing base, the transmission shaft is installed through the bolt inside the fixing base, the positive roll-up of transmission shaft has fixed rope, the pouring weight is installed through the rim plate to fixed rope one end. According to the utility model, the fixed rope is arranged on the front surface of the fixed wheel, so that the fixed rope can be used for fixing the lifting block, the inertia force generated by the lifting block in the starting and stopping, acceleration and deceleration or direction-changing movement is reduced, the stability of goods is increased, meanwhile, the damage to the goods is avoided, the safety in the lifting process is increased, and the lifting efficiency is ensured.

In practical use, the lifting movable assembly used in the lifting and telescoping process of the existing equipment is thinner, the lifting movable assembly is easy to damage when heavy goods are lifted, accidents are caused, and the problem that certain potential safety hazards exist when heavy goods are lifted is solved.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, a lifting movable assembly used in the lifting and telescoping process of the existing equipment is thinner, the lifting movable assembly is easy to damage when heavy goods are lifted, accidents occur, and certain potential safety hazards exist when heavy goods are lifted.

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

a telescopic gantry crane with a main beam comprises two supporting leg boxes, wherein the top parts of the two supporting leg boxes are fixedly provided with the same protective box, and the right side of the protective box is fixedly provided with a motor box; the inner wall on the right side of the motor case is rotationally provided with a first motor, an output shaft of the first motor is rotationally connected with the inner wall on the left side of the protection case, the inner wall on the bottom of the supporting leg case is rotationally provided with a first screw rod, the top end of the first screw rod extends into the protection case, a tooth-moving mechanism is arranged between the first motor and the first screw rod, a lifting mechanism is arranged on the first screw rod, and through holes are formed in one sides of the two supporting leg cases, which are adjacent.

Preferably, the gear mechanism comprises a first conical wheel and a second conical wheel, the first conical wheel is fixedly arranged on the output shaft of the first motor, the second conical wheel is fixedly arranged at the top end of the first screw rod, the first conical wheel and the second conical wheel are positioned in the protective box, and the first conical wheel is meshed with the second conical wheel.

Preferably, the lifting mechanism comprises two lifting blocks and a main beam box, the lifting blocks are sleeved on the first screw rod through threads, one side, adjacent to the two lifting blocks, of the two lifting blocks is fixedly provided with the same main beam box, a sliding mechanism is arranged between the lifting blocks and the supporting leg box, the lifting blocks are matched with the through holes, a translation mechanism is arranged in the main beam box, and a stabilizing mechanism is arranged in the main beam box.

Preferably, the sliding mechanism comprises a sliding block and a sliding groove, wherein the sliding block is arranged on one side, away from each other, of the two lifting blocks, the sliding groove is formed in the inner wall of one side, away from each other, of the two supporting leg boxes, and the sliding block is in sliding connection with the sliding groove.

Preferably, the translation mechanism comprises a second motor, a second screw rod, a screw rod seat and a first connecting column, wherein the second motor is fixedly arranged on the inner wall of the right side of the main beam box, the second screw rod is fixedly arranged on an output shaft of the second motor, the left end of the second screw rod is rotationally connected with the inner wall of the left side of the main beam box, the screw rod seat is sleeved on the second screw rod, the first connecting column is fixedly arranged at the bottom of the screw rod seat, and a column hole is formed in the bottom of the main beam box and is matched with the first connecting column.

Preferably, the stabilizing mean includes slide bar, slide and second spliced pole, girder case both sides inner wall fixed mounting has same slide bar, and slide and first spliced pole all slip cap are established on the slide bar, and slide bottom fixed mounting has the second spliced pole, and second spliced pole and post hole looks adaptation, and second spliced pole has same mount pad with first spliced pole bottom fixed mounting.

Preferably, the lifting box is fixedly installed at the bottom of the installation seat, the third motor is fixedly installed at the right side of the lifting box, the left end of an output shaft of the third motor is rotationally connected with the inner wall at the left side of the lifting box, the lifting mechanism is arranged between the third motor and the lifting box, and a rope hole is formed in the bottom of the lifting box.

Preferably, the lifting mechanism comprises a lifting rope, a lifting block and a lifting hook, wherein the lifting rope is arranged on the output shaft of the third motor, the lifting rope is matched with the rope hole, the lifting block is arranged at the bottom end of the lifting rope, and the lifting hook is arranged at the bottom of the lifting block.

The utility model has the beneficial effects that:

1. through the cooperation of the first motor, the first conical wheels and the second conical wheels, the two first screw rods can be driven to rotate, through the cooperation of the first screw rods and the lifting blocks, the main beam box can be driven to lift, the purpose that the main beam box stretches up and down can be achieved, and the purpose that the lifting effect is enhanced and potential safety hazards are avoided can be achieved;

2. through the cooperation of second motor, second lead screw, lead screw seat and first spliced pole, can realize driving mount pad and jack box and control the removal, can realize driving third motor, lifting rope, lifting block and lifting hook and control the removal, can realize that the lifting hook removes to the goods position that needs the jack-up, can realize driving the lifting hook through the third motor and carry out the purpose of lifting operation to the goods.

Drawings

Fig. 1 is a schematic perspective view of a telescopic girder gantry crane according to the present utility model;

fig. 2 is a schematic diagram of a front view cross section structure of a gantry crane with a telescopic girder according to the present utility model;

fig. 3 is a schematic diagram of a part a structure of a gantry crane with a telescopic girder according to the present utility model;

fig. 4 is a schematic diagram of a part B of the telescopic girder gantry crane according to the present utility model.

In the figure: 1. a leg box; 2. a protective box; 3. a motor case; 4. a first motor; 5. a first screw rod; 6. a first cone pulley; 7. a second cone wheel; 8. a lifting block; 9. a main girder box; 10. a second motor; 11. a second screw rod; 12. a screw rod seat; 13. a first connection post; 14. a slide bar; 15. a slide; 16. a second connection post; 17. a mounting base; 18. a jack box; 19. a third motor; 20. a lifting rope; 21. a lifting block; 22. a lifting hook; 23. a slide block; 24. a chute; 25. and a through hole.

Detailed Description

The technical scheme of the present utility model will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, a girder telescopic gantry crane comprises two leg boxes 1, wherein the top parts of the two leg boxes 1 are fixedly provided with the same protective box 2, and the right side of the protective box 2 is fixedly provided with a motor box 3; the inner wall on the right side of the motor case 3 is rotationally provided with a first motor 4, an output shaft of the first motor 4 is rotationally connected with the inner wall on the left side of the protective case 2, the inner wall on the bottom of the supporting leg case 1 is rotationally provided with a first screw rod 5, the top end of the first screw rod 5 extends into the protective case 2, a tooth-moving mechanism is arranged between the first motor 4 and the first screw rod 5, a lifting mechanism is arranged on the first screw rod 5, and through holes 25 are formed in one sides, adjacent to the two supporting leg cases 1, of the two supporting leg cases.

In this embodiment, the gear mechanism includes first cone pulley 6 and second cone pulley 7, and fixed mounting has first cone pulley 6 on the output shaft of first motor 4, and first lead screw 5 top end fixed mounting has second cone pulley 7, and first cone pulley 6 and second cone pulley 7 are located the protective housing 2, and first cone pulley 6 meshes with second cone pulley 7, through being provided with gear mechanism for first motor 4 can drive two first lead screws 5 and rotate.

In this embodiment, elevating system includes two lifter blocks 8 and girder case 9, the thread bush is equipped with lifter block 8 on the first lead screw 5, one side fixed mounting adjacent to two lifter blocks 8 has same girder case 9, be provided with slide mechanism between lifter block 8 and the landing leg case 1, lifter block 8 and through-hole 25 looks adaptation are provided with translation mechanism in the girder case 9, be provided with stabilizing mean in the girder case 9, through being provided with elevating system for two first lead screws 5 can drive girder case 9 and reciprocate, can realize that girder case 9 goes up and down flexible purpose.

In this embodiment, slide mechanism includes slider 23 and spout 24, and one side that two lifting blocks 8 kept away from each other all is provided with slider 23, and spout 24 has all been seted up to one side inner wall that two landing leg casees 1 kept away from each other, slider 23 and spout 24 sliding connection for lifting block 8 can stably go up and down through being provided with slide mechanism, can realize driving girder case 9 and stabilize flexible purpose.

In this embodiment, translation mechanism includes second motor 10, second lead screw 11, lead screw seat 12 and first spliced pole 13, girder case 9 right side inner wall fixed mounting has second motor 10, fixed mounting has second lead screw 11 on the second motor 10 output shaft, second lead screw 11 left end and girder case 9 left side inner wall rotate and are connected, the screw shell is equipped with lead screw seat 12 on the second lead screw 11, first spliced pole 13 is fixed mounting in lead screw seat 12 bottom, the post hole has been seted up to girder case 9 bottom, first spliced pole 13 and post hole looks adaptation, through being provided with translation mechanism, make second motor 10 can drive mount pad 17 and control the removal, can realize driving jack box 18 and control the purpose of removing.

In this embodiment, stabilizing mean includes slide bar 14, slide 15 and second spliced pole 16, same slide bar 14 is fixed mounting to girder case 9 both sides inner wall, slide 15 and first spliced pole 13 all slip cap are established on slide bar 14, slide 15 bottom fixed mounting has second spliced pole 16, second spliced pole 16 and post hole looks adaptation, second spliced pole 16 and first spliced pole 13 bottom fixed mounting have same mount pad 17, through being provided with stabilizing mean, more stable when the mount pad 17 drives jack box 18 and control the removal, can realize the purpose of reducing the burden to second lead screw 11.

In this embodiment, mount pad 17 bottom fixed mounting has jack box 18, jack box 18 right side fixed mounting has third motor 19, and third motor 19 output shaft left end and jack box 18 left side inner wall rotate to be connected, are provided with hoisting mechanism between third motor 19 and the jack box 18, and the rope hole has been seted up to jack box 18 bottom for jack box 18 can be connected with first spliced pole 13 and second spliced pole 16 through mount pad 17, can realize jack box 18 more stable purpose when controlling the removal.

In this embodiment, the hoisting mechanism includes lifting rope 20, lifting block 21 and lifting hook 22, is provided with lifting rope 20 on the third motor 19 output shaft, lifting rope 20 and rope hole looks adaptation, and lifting rope 20 bottom is provided with lifting block 21, and lifting block 21 bottom is provided with lifting hook 22, through being provided with the hoisting mechanism for third motor 19 can drive the lifting hook and go up and down, can realize carrying out the purpose of lifting operation to the goods.

In the utility model, when the lifting device is used, the first motor 4 is started to drive the first conical wheel 6 and the second conical wheel 7 to rotate, the two first screw rods 5 can be driven to rotate, the two lifting blocks 8 can be driven to move up and down, the main beam box 9 can be driven to lift, the purpose of extending and retracting the main beam box 9 up and down can be achieved, the lifting effect can be enhanced, the potential safety hazard can be avoided, when the main beam box 9 is lifted to a designated height, the second motor 10 is started to drive the second screw rod 11 to rotate, the screw rod seat 12 can be driven to move left and right, the mounting seat 17 can be driven to move left and right, the third motor 19 can be driven to move left and right through the lifting box 18, the lifting rope 20, the lifting block 21 and the lifting hook 22 can be driven to move left and right through the lifting rope 20 which is started to move down through the positive direction, the lifting block 21 and the lifting hook 22 can be driven to move down, the lifting hook 22 can reach the cargo position, and the motor can drive the lifting hook 22 to operate the cargo through the lifting hook 19.

The telescopic girder gantry crane provided by the utility model is described in detail. The principles and embodiments of the present utility model have been described herein with reference to specific examples, which are intended to be merely illustrative of the methods of the present utility model and their core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (8)

1. The telescopic gantry crane with the main beams is characterized by comprising two supporting leg boxes (1), wherein the same protective box (2) is fixedly arranged at the tops of the two supporting leg boxes (1), and a motor box (3) is fixedly arranged on the right side of the protective box (2);

the novel electric power generation device comprises a motor box (3), wherein a first motor (4) is rotatably arranged on the right side inner wall of the motor box (3), an output shaft of the first motor (4) is rotatably connected with the left side inner wall of a protective box (2), a first screw rod (5) is rotatably arranged on the bottom inner wall of a supporting leg box (1), the top end of the first screw rod (5) extends into the protective box (2), a tooth-moving mechanism is arranged between the first motor (4) and the first screw rod (5), a lifting mechanism is arranged on the first screw rod (5), and through holes (25) are formed in two adjacent sides of the supporting leg box (1).

2. The girder telescopic gantry crane according to claim 1, wherein the gear mechanism comprises a first conical wheel (6) and a second conical wheel (7), the first conical wheel (6) is fixedly installed on an output shaft of the first motor (4), the second conical wheel (7) is fixedly installed at the top end of the first screw rod (5), the first conical wheel (6) and the second conical wheel (7) are located in the protective box (2), and the first conical wheel (6) is meshed with the second conical wheel (7).

3. The telescopic girder gantry crane according to claim 1, wherein the lifting mechanism comprises two lifting blocks (8) and a girder box (9), the lifting blocks (8) are sleeved on the first screw rod (5) in a threaded mode, one side, adjacent to the lifting blocks (8), of each lifting block is fixedly provided with the same girder box (9), a sliding mechanism is arranged between each lifting block (8) and each supporting leg box (1), the lifting blocks (8) are matched with the through holes (25), a translation mechanism is arranged in each girder box (9), and a stabilizing mechanism is arranged in each girder box (9).

4. A girder telescopic gantry crane according to claim 3, wherein the sliding mechanism comprises a sliding block (23) and a sliding groove (24), the two lifting blocks (8) are provided with the sliding block (23) on one side far away from each other, the sliding groove (24) is formed in the inner wall of one side far away from each other of the two supporting leg boxes (1), and the sliding block (23) is in sliding connection with the sliding groove (24).

5. A girder telescopic gantry crane according to claim 3, characterized in that the translation mechanism comprises a second motor (10), a second screw rod (11), a screw rod seat (12) and a first connecting column (13), the second motor (10) is fixedly installed on the right inner wall of the girder box (9), the second screw rod (11) is fixedly installed on the output shaft of the second motor (10), the left end of the second screw rod (11) is rotationally connected with the left inner wall of the girder box (9), the screw rod seat (12) is sleeved on the second screw rod (11), the first connecting column (13) is fixedly installed at the bottom of the screw rod seat (12), a column hole is formed in the bottom of the girder box (9), and the first connecting column (13) is matched with the column hole.

6. A telescopic girder gantry crane according to claim 3, wherein the stabilizing mechanism comprises a sliding rod (14), a sliding seat (15) and a second connecting column (16), the same sliding rod (14) is fixedly arranged on the inner walls of two sides of the girder box (9), the sliding seat (15) and the first connecting column (13) are both sleeved on the sliding rod (14) in a sliding manner, the second connecting column (16) is fixedly arranged at the bottom of the sliding seat (15), the second connecting column (16) is matched with the column hole, and the same mounting seat (17) is fixedly arranged at the bottom of the second connecting column (16) and the bottom of the first connecting column (13).

7. The girder telescopic gantry crane of claim 6, wherein a lifting box (18) is fixedly installed at the bottom of the installation seat (17), a third motor (19) is fixedly installed at the right side of the lifting box (18), the left end of an output shaft of the third motor (19) is rotationally connected with the left inner wall of the lifting box (18), a lifting mechanism is arranged between the third motor (19) and the lifting box (18), and a rope hole is formed in the bottom of the lifting box (18).

8. The girder telescopic gantry crane of claim 7, wherein the lifting mechanism comprises a lifting rope (20), a lifting block (21) and a lifting hook (22), the lifting rope (20) is arranged on an output shaft of the third motor (19), the lifting rope (20) is matched with the rope hole, the lifting block (21) is arranged at the bottom end of the lifting rope (20), and the lifting hook (22) is arranged at the bottom of the lifting block (21).