Single-beam double-hoist crane

Abstract

The utility model discloses a single-beam double-hoist crane, and relates to the technical field of single-beam double-hoist cranes, the single-beam double-hoist crane comprises bases, the bases are platform-shaped, the number of the bases is two, the bottoms of the bases are provided with first grooves, the tops of the two bases are fixedly connected with first supporting rods, the tops of the first supporting rods are provided with second grooves, and the first supporting rods are fixedly connected with second supporting rods. Second supporting rods are slidably connected to the inner walls of the second grooves, the second supporting rods and the second grooves are consistent in size and shape, threaded rods are rotatably connected to the inner bottom walls of the second grooves, the outer ends of the threaded rods are in threaded connection with the bottoms of the second supporting rods, and the two second supporting rods correspond to the bases one to one. The tops of the two second supporting rods are fixedly connected with a top rod, the two second supporting rods are located at the left end and the right end of the top rod respectively, and the inner side wall of the first supporting rod is fixedly connected with a first outer rod.

Description

Technical Field

[0001] The utility model relates to the technical field of single-girder double-hoist cranes, and specifically relates to a single-girder double-hoist crane. Background Technique

[0002] A gantry double-hoist crane mainly consists of a main girder, a cross beam, electric hoists, a trolley running mechanism, and an electric control part. With the development of gantry double-hoist cranes, people have realized that a single electric hoist can gradually no longer meet the need to lift heavy objects. For example, it cannot achieve the flipping of heavy objects, and thus a double-hoist structure has emerged in gantry double-hoist cranes.

[0003] In a double-hoist gantry crane disclosed in the Chinese utility model patent application publication specification CN219408989U, although the problem of goods being damaged due to collision with the column is solved, the double-hoist gantry crane still has the following disadvantages: First, although the above double-hoist gantry crane uses buffer air bags to reduce the impact force, when the goods are long and large, the distance between the bottom of the goods and the ground still needs to be adjusted to prevent damage to the bottom of the goods; Second, when the two electric hoists stop at the collision ends, shaking will occur, which will cause the goods to shake, and is not conducive to the transportation of goods. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a single-girder double-hoist crane, which solves the problems raised in the above background technique.

[0006] (II) Technical Solutions

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions: A single-girder double-hoist crane includes a base. The base is in a table shape, and there are two bases. The bottom of the base is provided with a first groove. The top of the two bases is fixedly connected with a first support rod. The top of the first support rod is provided with a second groove. The inner wall of the second groove is slidably connected with a second support rod. The second support rod is the same in size and shape as the second groove. The inner bottom wall of the second groove is rotatably connected with a threaded rod. The outer end of the threaded rod is threadedly connected with the bottom of the second support rod. There are two second support rods and they correspond to the bases one by one. The tops of the two second support rods are fixedly connected with a top rod. The two second support rods are respectively located at the left and right ends of the top rod. The inner side wall of the first support rod is fixedly connected with a first outer rod.

[0008] Optionally, a first motor is fixedly installed on the inner bottom wall of the first groove. The first motor is in transmission connection with the threaded rod. There are two groups of first outer rods, which are symmetrically arranged up and down with respect to the first support rod. The inner wall of the first outer rod is slidably connected with a first inner rod. The first inner rods correspond to the first outer rods one by one. One end of the first inner rod close to the inner wall of the first outer rod is fixedly connected with a first spring, and the other end of the first spring is fixedly connected with the inner wall of the first outer rod.

[0009] Optionally, the inner side wall of the top of the second support rod is fixedly connected with a second outer rod. There are two second outer rods, which correspond to the second outer rods one by one. The inner wall of the second outer rod is slidably connected with a second inner rod. The second inner rods correspond to the second outer rods one by one. One end of the second inner rod close to the inner wall of the second outer rod is fixedly connected with a second spring, and the other end of the second spring is fixedly connected with the inner wall of the second outer rod. One end of the second inner rod away from the second spring is fixedly connected with an inner plate. The inner plate is T-shaped. The top of the inner plate is slidably connected with the bottom of the top rod. One end of the first inner rod away from the first spring is fixedly connected with an outer plate. The outer plate is slidably connected with the inner plate.

[0010] Optionally, a first chute is formed in the front surface of the top rod. A baffle is arranged on the front surface of the first chute. There are two baffles, which are symmetrically arranged up and down with respect to the top rod. Second chutes are formed in the opposite surfaces of the two baffles. A moving wheel is rotatably connected to the inner wall of the first chute. There are two moving wheels. Fixed wheels are fixedly connected to the front surfaces of the two moving wheels. The fixed wheels correspond to the moving wheels one by one and have the same center of circle as the moving wheels.

[0011] Optionally, connecting seats are rotatably connected to the front surfaces of the two fixed wheels. There are two connecting seats. A second motor is fixedly installed on the front surface of the connecting seat. The second motor is in transmission connection with the fixed wheel. A reel is arranged at the bottom of the connecting seat. A hook is arranged at the outer end of the reel. Clamping plates are fixedly connected to both ends of the two connecting seats. Third outer rods are fixedly connected to the outer side walls of the clamping plates. There are three groups of third outer rods. A clamping groove is formed at the outer end of the third outer rod. A third inner rod is slidably connected to the inner wall of the clamping groove. The number of the third inner rods is the same as that of the third outer rods and they correspond to each other one by one.

[0012] Optionally, one end of the third inner rod close to the clamping groove is fixedly connected with a third spring, and the other end of the third spring is fixedly connected with the inner wall of the clamping groove. One end of the third inner rod away from the clamping groove is fixedly connected with a fixing plate. The top of the fixing plate is in tight contact with and slidably connected to the inner top wall of the upper half of the second chute. The bottom of the fixing plate is in tight contact with and slidably connected to the inner bottom wall of the lower half of the second chute. The fixing plate is made of rubber.

[0013] (III) Beneficial effects

[0014] The present utility model provides a single-girder double-hoist crane, which has the following beneficial effects:

[0015] 1. For this single-girder double-hoist crane, through the cooperative setting of the first spring and the second spring, the single-girder double-hoist crane is enabled to reduce the impact force of the goods colliding with the two side columns, protecting the goods from damage. Through the cooperative setting of the threaded rod, the outer plate and the inner plate, during the use process, when the second support rod adjusts its height, the inner plate can also adjust its height accordingly, thus playing a role in lifting the crane while not affecting the buffering of the force between the goods and the columns.

[0016] 2. For this single-girder double-hoist crane, through the setting that the material of the fixing plate is rubber, the single-girder double-hoist crane is enabled to initially reduce the sway when the electric hoist stops. Through the cooperative setting of the third spring and the fixing plate, during the use process, it can slow down the impact force when the electric hoist stops, thus playing a role in reducing the sway of the electric hoist, achieving the purpose of stabilizing the goods and reducing the sway of the goods when the lifted goods stop. Description of the Drawings

[0017] Figure 1 It is a three-dimensional schematic diagram of the whole of the present utility model;

[0018] Figure 2 It is a front schematic diagram of the whole of the present utility model;

[0019] Figure 3 It is a left-side cross-sectional view of the inside of the first support rod of the present utility model;

[0020] Figure 4 It is a left-side cross-sectional view of the second chute of the present utility model;

[0021] Figure 5 It is a top cross-sectional view of the first chute of the present utility model;

[0022] Figure 6 It is of the present utility model Figure 2 Enlarged schematic diagram of part A;

[0023] Figure 7 It is of the present utility model Figure 5 Enlarged schematic diagram of part B.

[0024] In the figure: 1, base; 2, first support rod; 3, threaded rod; 4, first motor; 5, second support rod; 6, ejector rod; 7, first outer rod; 8, first inner rod; 9, first spring; 10, second outer rod; 11, second inner rod; 12, second spring; 13, outer plate; 14, inner plate; 15, first chute; 16, second chute; 17, moving wheel; 18, fixed wheel; 19, connecting seat; 20, third outer rod; 21, third inner rod; 22, third spring; 23, fixing plate; 24, baffle; 25, second motor. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0026] Embodiment 1:

[0027] Please refer to Figures 1 to 4, the utility model provides a technical solution: a single-girder double-hoist crane, including a base 1. The base 1 is in a table shape and there are two bases 1. A first groove is opened at the bottom of the base 1. A first support rod 2 is fixedly connected to the top of each of the two bases 1. A second groove is opened at the top of the first support rod 2. A second support rod 5 is slidably connected to the inner wall of the second groove. The second support rod 5 is the same in size and shape as the second groove. A threaded rod 3 is rotatably connected to the inner bottom wall of the second groove. The outer end of the threaded rod 3 is threadedly connected to the bottom of the second support rod 5. There are two second support rods 5 and they correspond to the bases 1 one by one. The tops of the two second support rods 5 are fixedly connected to a top rod 6. The two second support rods 5 are respectively located at the left and right ends of the top rod 6. A first outer rod 7 is fixedly connected to the inner side wall of the first support rod 2. A first motor 4 is fixedly installed on the inner bottom wall of the first groove. The first motor 4 is in transmission connection with the threaded rod 3. There are two groups of first outer rods 7 and they are symmetrically arranged up and down with respect to the first support rod 2. A first inner rod 8 is slidably connected to the inner wall of the first outer rod 7. The first inner rod 8 corresponds to the first outer rod 7 one by one. One end of the first inner rod 8 close to the inner wall of the first outer rod 7 is fixedly connected to a first spring 9. The other end of the first spring 9 is fixedly connected to the inner wall of the first outer rod 7. A second outer rod 10 is fixedly connected to the inner top side wall of the second support rod 5. There are two second outer rods 10 and they correspond to the second outer rods 10 one by one. A second inner rod 11 is slidably connected to the inner wall of the second outer rod 10. The second inner rod 11 corresponds to the second outer rod 10 one by one. One end of the second inner rod 11 close to the inner wall of the second outer rod 10 is fixedly connected to a second spring 12. The other end of the second spring 12 is fixedly connected to the inner wall of the second outer rod 10. One end of the second inner rod 11 away from the second spring 12 is fixedly connected to an inner plate 14. The inner plate 14 is in a T shape. The top of the inner plate 14 is slidably connected to the bottom of the top rod 6. One end of the first inner rod 8 away from the first spring 9 is fixedly connected to an outer plate 13. The outer plate 13 is slidably connected to the inner plate 14.

[0028] When in use, although the existing double-hoist gantry crane reduces the impact force through buffer air bags, when the goods are long and large, it is still necessary to adjust the distance between the bottom of the goods and the ground to prevent damage to the bottom of the goods. Therefore, there is a single-girder double-hoist crane. When the crane needs to adjust its height, start the first motor 4 to make the threaded rod 3 start to rotate, and the second support rod 5 moves upward from the bottom inside the first support rod 2. At this time, the inner plate 14 follows the second support rod 5 and slides upward inside the outer plate 13. Then, turn off the first motor 4 after the height of the crane is appropriate. When the goods are transported from one end of the crane to the other end, the goods will collide with the outer plate 13 or the inner plate 14 according to the height. At this time, the first inner rod 8 and the second inner rod 11 respectively squeeze the first spring 9 and the second spring 12, making the first inner rod 8 and the second inner rod 11 slide inside the first outer rod 7 and the second outer rod 10 respectively, so as to slow down the impact force caused by the goods on the outer plate 13 or the inner plate 14, protecting the goods from damage and reducing the shaking of the goods at the same time.

[0029] Embodiment 2:

[0030] Please refer to Figures 1 to 7 , the present utility model provides a technical solution: a single-girder double-hoist crane. A first chute 15 is provided on the front surface of the top rod 6. A baffle 24 is provided on the front surface of the first chute 15. There are two baffles 24 and they are symmetrically arranged up and down with respect to the top rod 6. Second chutes 16 are provided on the opposite surfaces of the two baffles 24. A moving wheel 17 is rotatably connected to the inner wall of the first chute 15. There are two moving wheels 17. Fixed wheels 18 are fixedly connected to the front surfaces of the two moving wheels 17. The fixed wheels 18 correspond to the moving wheels 17 one by one and have the same center of the circle as the moving wheels 17. Connecting seats 19 are rotatably connected to the front surfaces of the two fixed wheels 18. There are two connecting seats 19. A second motor 25 is fixedly installed on the front surface of the connecting seat 19. The second motor 25 is in transmission connection with the fixed wheel 18. A reel is provided at the bottom of the connecting seat 19. A hook is provided at the outer end of the reel. Clamping plates are fixedly connected to both ends of the two connecting seats 19. Third outer rods 20 are fixedly connected to the outer side walls of the clamping plates. There are three groups of third outer rods 20. A card slot is provided at the outer end of the third outer rod 20. A third inner rod 21 is slidably connected to the inner wall of the card slot. The number of the third inner rods 21 is the same as that of the third outer rods 20 and they correspond to each other one by one. A third spring 22 is fixedly connected to the end of the third inner rod 21 close to the card slot. The other end of the third spring 22 is fixedly connected to the inner wall of the card slot. A fixing plate 23 is fixedly connected to the end of the third inner rod 21 away from the card slot. The top of the fixing plate 23 is in tight contact with and slidably connected to the inner top wall of the upper half of the second chute 16. The bottom of the fixing plate 23 is in tight contact with and slidably connected to the inner bottom wall of the lower half of the second chute 16. The fixing plate 23 is made of rubber.

[0031] During use, when the two electric hoists stop at both ends of the collision, they will shake, which will cause the goods to shake, and it is not conducive to the transportation of the goods. Therefore, there is a single-girder double-hoist crane. When the two electric hoists stop moving, the side walls of the two electric hoists will collide. At this time, the moving wheel 17 and the fixing plate 23 slide inside the first chute 15 and the second chute 16 respectively. Subsequently, the fixing plate 23 hits the inner wall of the second chute 16. Through the setting that the fixing plate 23 is made of rubber, the impact force of hitting the inner wall of the second chute 16 can be initially reduced. Subsequently, the impact force is transmitted to the third spring 22 through the third inner rod 21, causing the third spring 22 to contract, thereby reducing the impact force caused by the fixing plate 23 hitting the inner wall of the second chute 16 for the second time. Through the combined setting of the third spring 22 and the fixing plate 23, the shaking generated when the electric hoist stops moving can be reduced to the greatest extent, achieving the purpose of stabilizing the goods and reducing the shaking of the goods.

[0032] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A single-beam double-hoist crane, comprising a base (1), characterized in that: The base (1) is in a table shape. There are two bases (1). A first groove is provided at the bottom of the base (1). The tops of the two bases (1) are fixedly connected to a first support rod (2). A second groove is provided at the top of the first support rod (2). A second support rod (5) is slidably connected to the inner wall of the second groove. The second support rod (5) is consistent with the second groove in size and shape. A threaded rod (3) is rotatably connected to the inner bottom wall of the second groove. The outer end of the threaded rod (3) is threadedly connected to the bottom of the second support rod (5). There are two second support rods (5) and they correspond to the base (1) one by one. A top rod (6) is fixedly connected to the top of the two second support rods (5). The two second support rods (5) are respectively located at the left and right ends of the top rod (6). The inner side wall of the first support rod (2) is fixedly connected to a first outer rod (7).

2. A single-beam double-hoist crane according to claim 1, characterized in that: A first motor (4) is fixedly mounted on the inner bottom wall of the first groove, the first motor (4) is transmission-connected to the threaded rod (3), the first outer rod (7) has two groups and is vertically symmetrical to the first support rod (2), the inner wall of the first outer rod (7) is slidably connected to a first inner rod (8), the first inner rod (8) corresponds to the first outer rod (7) one-to-one, one end of the first inner rod (8) close to the inner wall of the first outer rod (7) is fixedly connected to a first spring (9), and the other end of the first spring (9) is fixedly connected to the inner wall of the first outer rod (7).

3. A single-beam double-hoist crane according to claim 2, characterized in that: A second outer rod (10) is fixedly connected to the inner side wall of the top of the second support rod (5); there are two second outer rods (10) and they correspond one to one with the second outer rods (10); a second inner rod (11) is slidably connected to the inner wall of the second outer rod (10); the second inner rod (11) corresponds one to one with the second outer rod (10); one end of the second inner rod (11) close to the inner wall of the second outer rod (10) is fixedly connected to a second spring (12); the other end of the second spring (12) is fixedly connected to the inner wall of the second outer rod (10); one end of the second inner rod (11) away from the second spring (12) is fixedly connected to an inner plate (14); the inner plate (14) is T-shaped; the top of the inner plate (14) is slidably connected to the bottom of the top rod (6); one end of the first inner rod (8) away from the first spring (9) is fixedly connected to an outer plate (13); the outer plate (13) is slidably connected to the inner plate (14).

4. The single-beam double-hoist crane according to claim 1, characterized in that: The front face of the push rod (6) is provided with a first slide groove (15), the front face of the first slide groove (15) is provided with a baffle (24), there are two baffles (24) and they are symmetrical with the push rod (6) in the upper and lower directions, and the opposite sides of the two baffles (24) are provided with a second slide groove (16), the inner wall of the first slide groove (15) is rotatably connected with a moving wheel (17), there are two moving wheels (17), the front faces of the two moving wheels (17) are fixedly connected with a fixed wheel (18), the fixed wheel (18) corresponds to the moving wheel (17) one by one and has the same circle center as the moving wheel (17).

5. The single-beam double-hoist crane according to claim 4, characterized in that: The front sides of the two fixed wheels (18) are rotatably connected to a connecting seat (19), there are two connecting seats (19), a second motor (25) is fixedly mounted on the front sides of the connecting seat (19), the second motor (25) is transmission-connected to the fixed wheel (18), a reel is provided at the bottom of the connecting seat (19), a hook is provided at the outer end of the reel, both ends of the two connecting seats (19) are fixedly connected to a clamping plate, the outer side walls of the clamping plate are fixedly connected to a third outer rod (20), there are three groups of the third outer rod (20), the outer ends of the third outer rod (20) are provided with a clamping slot, the inner wall of the clamping slot is slidably connected to a third inner rod (21), the number of the third inner rod (21) and the third outer rod (20) are the same and correspond one to one.

6. The single-beam double-hoist crane according to claim 5, characterized in that: The end of the third inner rod (21) close to the slot is fixedly connected to a third spring (22), the other end of the third spring (22) is fixedly connected to the inner wall of the slot, the end of the third inner rod (21) away from the slot is fixedly connected to a fixing plate (23), the top of the fixing plate (23) is tightly attached to and slidably connected to the inner top wall of the upper second slide slot (16), the bottom of the fixing plate (23) is tightly attached to and slidably connected to the inner bottom wall of the lower second slide slot (16), and the fixing plate (23) is made of rubber.

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