Double-beam bridge crane with lifting limiting structure

Abstract

The utility model relates to the technical field of special equipment hoisting machinery design, and discloses a double-beam bridge crane with a lifting limiting structure, which comprises two support beams, two main beams are arranged at the tops of the two support beams and are connected through a connecting beam, rollers are arranged at the bottoms of the main beams, and the lifting limiting structure is arranged between the two main beams. A sliding groove is formed in the top of the supporting beam, the idler wheels abut against the sliding groove in a rolling mode, a crane is connected to the middle of the main beam in a sliding mode, a mounting plate is arranged at the bottom of the main beam, and a connecting assembly is arranged between the main beam and the mounting plate. According to the lifting device, when the goods are lifted, the goods can make contact with the rubber pad and can extrude the pressing plate at the same time, then the first compression spring and the damping rod can be compressed, meanwhile, when the pressing plate ascends to extrude the button, the controller can stop lifting the goods, and the problem that the lifted goods collide with the main beam, and consequently the goods are damaged is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of special equipment hoisting machinery design, in particular to a double-beam bridge crane with a lifting limit structure. Background Art

[0002] A crane refers to a multi-action lifting machinery that can vertically lift and horizontally move heavy objects within a certain range. It is also called an overhead crane, an overhead crane, or a crane. A bridge crane is generally composed of a main beam, an end beam, a trolley running mechanism, a carriage running mechanism, and a lifting mechanism. The carriage running mechanism drives the end beam to move the entire bridge crane along the guide rail in the length direction of the workshop. The lifting mechanism is connected to a hook on the wire rope of the winch, and the hook is used to lift goods.

[0003] After searching, Chinese patent announcement number: CN211034929U discloses a double-beam bridge crane, including a first main beam and a second main beam, an end beam is arranged between the first main beam and the second main beam, and the two ends of the end beam are respectively fixed to the end of the first main beam and the second main beam, the first main beam and the second main beam are equipped with a crane trolley, and the crane trolley is provided with a lifting mechanism, and flexible flanges are arranged at both ends of the first main beam, and the flexible flange includes an upper flange base, and a lower flange base is arranged below the upper flange base, and the upper flange base and the lower flange base are arranged at intervals, and the lower flange base is fixed on the end beam, and the upper flange base and the lower flange base are correspondingly provided with mounting holes, and fixing bolts are arranged in the mounting holes, and fixing nuts are arranged at the outer ends of the fixing bolts. Rigid flanges are arranged at both ends of the second main beam, and the two ends of the second main beam are fixed to the end beam through the rigid flanges, and a trolley walking mechanism is arranged below the rigid flange. The utility model has a simple structure, solves the problem of uneven force on the walking wheels of the double-beam bridge crane, and is safe and reliable.

[0004] Although the above technology solves the problem of uneven force on the traveling wheels of the double-beam bridge crane, there are still some shortcomings. The device cannot stop automatically and needs to be stopped manually, which is prone to operating errors, causing the hoisted cargo to collide with the main beam, thereby causing damage to the cargo. Therefore, a double-beam bridge crane with a lifting limit structure is proposed to solve the above problem. Utility Model Content

[0005] In order to remedy the above deficiencies, the utility model provides a double-beam bridge crane with a lifting limit structure, which aims to improve the problem in the prior art that the crane cannot be stopped automatically and needs to be stopped manually, which is prone to operating errors and causes collision between the hoisted cargo and the main beam, thereby causing damage to the cargo.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a double-beam bridge crane with a lifting and limiting structure, comprising two supporting beams, two main beams are arranged on the top of the two supporting beams, the two main beams are connected by a connecting beam, rollers are arranged at the bottom of the main beams, a slide groove is opened at the top of the supporting beams, the rollers and the slide groove are in rolling abutment, a crane is slidably connected to the middle part of the main beam, a mounting plate is arranged at the bottom of the main beam, a connecting assembly is arranged between the main beam and the mounting plate, two fixing blocks are fixedly connected to the bottom of the mounting plate, a connecting rod is fixedly connected between the two fixing blocks, and the outer periphery of the connecting rod is slidably connected to two A movable seat, the top of which is fixedly connected with a T-block, one side opposite to the two movable seats is fixedly connected with a compression spring, one end of the two compression springs away from the movable seat is respectively fixedly connected to the side close to the two fixed blocks, the bottom of the movable seat is rotatably connected with a connecting block, the other side of the connecting block is rotatably connected with a pressure plate, the bottom of the pressure plate is fixedly connected with a rubber pad, a damping rod is fixedly connected between the mounting plate and the pressure plate, the bottom of the fixed block is fixedly connected with a button, the outer side of the support beam is fixedly connected with a controller, the button is electrically connected to the controller, the controller is electrically connected to the crane, and the top of the pressure plate is fixedly connected with a limiting assembly.

[0007] As a further description of the above technical solution:

[0008] The limiting assembly comprises a limiting rod, the limiting rod is fixedly connected to the top of the pressing plate, a limiting groove is provided at the bottom of the main beam, and the limiting rod is slidably connected to the middle of the limiting groove.

[0009] As a further description of the above technical solution:

[0010] The connecting component includes a positioning block, which is fixedly connected to the top of the mounting plate. A second compression spring is fixedly connected to the inside of the main beam. A clamping block is fixedly connected to the other end of the second compression spring. The clamping block is in contact with the positioning block. A clamping slot is provided in the middle of the positioning block. The clamping block and the clamping slot are plugged in and matched. A disassembly component is slidably connected to the middle of the main beam.

[0011] As a further description of the above technical solution:

[0012] The disassembly assembly includes a pull rod, which is slidably connected to the middle part of the main beam, and one end of the pull rod close to the main beam is fixedly connected to a movable plate, the outer side of the movable plate is rotatably connected to a connecting plate, and the other side of the connecting plate is rotatably connected to a pull plate, the pull plate is slidably connected to the inside of the main beam, and the side of the pull plate away from the connecting plate is fixedly connected to the side of the block close to the second compression spring.

[0013] As a further description of the above technical solution:

[0014] A T-shaped slot is provided at the bottom of the mounting plate, and the T-shaped block is slidably connected to the middle of the T-shaped slot.

[0015] As a further description of the above technical solution:

[0016] A positioning groove is provided at the bottom of the main beam, and the positioning block is plug-fitted into the positioning groove.

[0017] As a further description of the above technical solution:

[0018] A partition is slidably connected inside the main beam, and the partition is fixedly connected between the second compression spring and the clamping block.

[0019] As a further description of the above technical solution:

[0020] One end of the pull rod away from the main beam is fixedly connected with a pull ring.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, through the mutual cooperation of the structures such as the mounting plate, the fixing block, the connecting rod, the movable seat, the T-block, the compression spring 1, the connecting block, the pressure plate, the rubber pad, the button, the controller, the damping rod, the limit rod and the limit groove, when the goods are lifted, the goods will contact with the rubber pad and squeeze the pressure plate, thereby compressing the compression spring 1 and the damping rod. At the same time, when the pressure plate rises to squeeze the button, the controller can stop lifting the goods, thereby avoiding the problem of damage to the goods caused by collision between the hoisted goods and the main beam.

[0023] 2. In the utility model, through the mutual cooperation of the positioning block, the second compression spring, the card block, the card slot, the pull rod, the movable plate, the connecting plate and the pull plate, the mounting plate can be fixed by inserting the positioning block into the main beam, and the mounting plate can be removed by pulling the pull rod, so that the mounting plate can be quickly installed or removed, and the mounting plate can be quickly replaced when the structure is aged or damaged during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of a double-beam bridge crane with a lifting limit structure proposed by the utility model;

[0025] Figure 2 This is a structural schematic diagram of a button of a double-beam bridge crane with a lifting limit structure proposed by the utility model;

[0026] Figure 3This is a structural schematic diagram of a double-beam bridge crane block with a lifting limit structure proposed by the utility model;

[0027] Figure 4 The utility model is a schematic structural diagram of a pull plate of a double-beam bridge crane with a lifting limit structure.

[0028] Legend:

[0029] 1. Support beam; 2. Main beam; 3. Roller; 4. Slide; 5. Crane; 6. Mounting plate; 7. Fixed block; 8. Connecting rod; 9. Movable seat; 10. T-block; 11. Compression spring 1; 12. Connecting block; 13. Pressure plate; 14. Rubber pad; 15. Button; 16. Controller; 17. Damping rod; 18. Limit rod; 19. Limit slot; 20. Positioning block; 21. Compression spring 2; 22. Block; 23. Slot; 24. Pull rod; 25. Movable plate; 26. Connecting plate; 27. Pull plate; 28. T-slot; 29. ​​Positioning slot. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1 and Figure 2 The utility model provides an embodiment: a double-beam bridge crane with a lifting limit structure, comprising two support beams 1, two main beams 2 are arranged on the top of the two support beams 1, the two main beams 2 are connected by a connecting beam, a roller 3 is arranged at the bottom of the main beam 2, a slide groove 4 is opened on the top of the support beam 1, the roller 3 and the slide groove 4 are in rolling contact, the main beam 2 can slide on the top of the support beam 1 through the roller 3 and the slide groove 4, the middle part of the main beam 2 is slidably connected with a crane 5, a mounting plate 6 is arranged at the bottom of the main beam 2, a connecting component is arranged between the main beam 2 and the mounting plate 6, and the main beam 2 and the mounting plate 6 can be connected or separated through the connecting component.

[0032] Reference Figure 1 and Figure 2The bottom of the mounting plate 6 is fixedly connected to two fixed blocks 7, a connecting rod 8 is fixedly connected between the two fixed blocks 7, the outer periphery of the connecting rod 8 is slidably connected to two movable seats 9, the top of the movable seat 9 is fixedly connected to a T-block 10, a T-slot 28 is provided at the bottom of the mounting plate 6, the T-block 10 is slidably connected to the middle of the T-slot 28, the movable seat 9 can be limited by the T-slot 28 and the T-block 10, thereby preventing the movable seat 9 from tilting when being squeezed, so that the movable seat 9 can only move vertically, and the opposite sides of the two movable seats 9 are fixedly connected to a compression spring. 11, one end of the two compression springs 11 away from the movable seat 9 is fixedly connected to the side close to the two fixed blocks 7 respectively, the bottom of the movable seat 9 is rotatably connected with a connecting block 12, and the other side of the connecting block 12 is rotatably connected with a pressing plate 13, and the bottom of the pressing plate 13 is fixedly connected with a rubber pad 14. Under the action of the rubber pad 14, the surface of the goods can be prevented from being damaged when the goods come into contact with it, and at the same time, the goods can be squeezed against the rubber pad 14 and the pressing plate 13 when the goods are lifted. When the pressing plate 13 moves upward, the connecting block 12 can compress the compression spring 11, so that the goods can continue to be lifted.

[0033] Reference Figure 1 and Figure 2 A damping rod 17 is fixedly connected between the mounting plate 6 and the pressing plate 13. Under the action of the damping rod 17, the movement of the pressing plate 13 can be made more stable. A button 15 is fixedly connected to the bottom of the fixed block 7. A controller 16 is fixedly connected to the outer side of the support beam 1. The button 15 and the controller 16 are electrically connected. The controller 16 and the crane 5 are electrically connected. When the pressing plate 13 squeezes the button 15 during movement, the controller 16 will receive a signal that the button 15 is squeezed, and then the crane 5 can be controlled to stop lifting the goods, and the lifting height of the goods can be limited, thereby avoiding the problem of damage to the goods caused by the collision between the hoisted goods and the main beam 2. The top of the pressing plate 13 is fixedly connected with a limiting component.

[0034] Reference Figure 1-Figure 3 The limiting assembly includes a limiting rod 18, which is fixedly connected to the top of the pressure plate 13. A limiting groove 19 is provided at the bottom of the main beam 2. The limiting rod 18 is slidably connected to the middle of the limiting groove 19. The pressure plate 13 can be limited by the limiting rod 18 and the limiting groove 19, which can prevent the pressure plate 13 from tilting when the goods are moved, causing abnormalities in the top structure, and thus enable the structure on the top of the pressure plate 13 to be in a normal working state.

[0035] Reference Figure 2-Figure 4The connection assembly includes a positioning block 20, which is fixedly connected to the top of the mounting plate 6. A positioning groove 29 is provided at the bottom of the main beam 2. The positioning block 20 and the positioning groove 29 are plugged together. The positioning groove 29 can quickly establish a connection between the main beam 2 and the mounting plate 6, thereby improving the installation speed of the mounting plate 6. A compression spring 21 is fixedly connected inside the main beam 2. The other end of the compression spring 21 is fixedly connected to a clamping block 22. The clamping block 22 contacts the positioning block 20, and the positioning A slot 23 is provided in the middle of the block 20, and the block 22 and the slot 23 are plugged into each other. When the positioning block 20 enters the positioning slot 29, the positioning block 20 will contact the block 22, thereby squeezing the block 22 and moving it. When the block 22 moves, the compression spring 21 can be compressed and put into the main beam 2. When the slot 23 moves to the original position of the block 22, the block 22 can be bounced into the slot 23 under the action of the compression spring 21, thereby quickly installing the mounting plate 6.

[0036] Reference Figure 3 and Figure 4 The main beam 2 is internally slidably connected with a partition, which is fixedly connected between the compression spring 21 and the block 22. The partition can prevent the block 22 from tilting when it moves, thereby preventing the compression spring 21 from being deformed and damaged due to tilting and squeezing, thereby increasing the service life of the compression spring 21. The middle part of the main beam 2 is slidably connected with a disassembly component.

[0037] Reference Figure 3 and Figure 4 The disassembly assembly includes a pull rod 24, which is slidably connected to the middle part of the main beam 2. One end of the pull rod 24 close to the main beam 2 is fixedly connected to a movable plate 25, and the outer side of the movable plate 25 is rotatably connected to a connecting plate 26. The other side of the connecting plate 26 is rotatably connected to a pull plate 27, and the pull plate 27 is slidably connected to the inside of the main beam 2. The side of the pull plate 27 away from the connecting plate 26 is fixedly connected to the side of the block 22 close to the compression spring 21. The movable plate 25 can be driven to move by pulling the pull rod 24, and the movable plate 25 can be brought into contact with the movable plate 25 when it moves. One side of the movable connecting plate 26 is moved. At the same time, since the connecting plate 26, the movable plate 25 and the pulling plate 27 are arranged to rotate, the connecting plate 26 will tilt and pull the pulling plate 27 when the movable plate 25 moves. When the pulling plate 27 moves, the blocking block 22 can be pulled out of the middle of the card slot 23, and the mounting plate 6 can be quickly removed, so that the structure at the bottom of the mounting plate 6 can be maintained or replaced. The end of the pull rod 24 away from the main beam 2 is fixedly connected with a pull ring, and the pull rod 24 can be pulled more conveniently and comfortably through the pull ring.

[0038] Working principle: When in use, when the rubber pad 14 is squeezed, the pressure plate 13 can be squeezed against the connecting block 12. At the same time, the limiting rod 18 and the limiting groove 19 can prevent the pressure plate 13 from tilting when moving, so that the connecting block 12 can drive the T-block 10 and compress the compression spring 11 under the action of the fixed block 7. At the same time, when the pressure plate 13 moves upward, the damping rod 17 can be compressed, so that the pressure plate 13 can slowly rise. When the pressure plate 13 squeezes the button 15, the button 15 controller 16 receives the information that the button 15 is squeezed, and can stop lifting the goods, so as to limit the lifting height of the goods. When the goods are put down, the pressure plate 13 is not squeezed by external force. At this time, under the action of the compression spring 11 and the damping rod 17, the pressure plate 13 and the rubber pad 14 can move downward until they return to their original positions.

[0039] Among them, by inserting the positioning block 20 into the main beam 2, the positioning block 20 will squeeze the block 22 when it enters, and the block 22 will compress the compression spring 21 when it is squeezed and enter the main beam 2. When the slot 23 moves to the original position of the block 22, the block 22 can be bounced into the slot 23 under the action of the compression spring 21, so that the mounting plate 6 can be quickly installed, and the structure at the bottom of the mounting plate 6 can be installed at the same time. When the structure at the bottom of the mounting plate 6 is aged or damaged due to long-term use, the movable plate 25 is moved by pulling the pull rod 24. When the movable plate 25 moves, the pull plate 27 can be moved through the connecting plate 26. When the pull plate 27 moves, the block 22 can be pulled out of the middle of the slot 23, so that the mounting plate 6 can be quickly removed, which is convenient for maintenance or replacement of the structure at the bottom of the mounting plate 6.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-beam bridge crane with a lifting limit structure, comprising two support beams (1), characterized in that: Two main beams (2) are arranged on the top of the two support beams (1), and the two main beams (2) are connected by a connecting beam. A roller (3) is arranged on the bottom of the main beam (2). A slide groove (4) is provided on the top of the support beam (1), and the roller (3) and the slide groove (4) are in rolling contact. A crane (5) is slidably connected to the middle of the main beam (2). A mounting plate (6) is arranged on the bottom of the main beam (2). A connecting component is arranged between the main beam (2) and the mounting plate (6). Two fixed blocks (7) are fixedly connected to the bottom of the mounting plate (6), and a connecting rod (8) is fixedly connected between the two fixed blocks (7). Two movable seats (9) are slidably connected to the outer periphery of the connecting rod (8), and a T-shaped block (10) is fixedly connected to the top of the movable seat (9). The two movable seats (9) are relatively One side of each of the two support beams (1) is fixedly connected with a compression spring (11); one end of each of the two compression springs (11) away from the movable seat (9) is fixedly connected to a side close to the two fixed blocks (7); the bottom of the movable seat (9) is rotatably connected with a connecting block (12); the other side of the connecting block (12) is rotatably connected with a pressure plate (13); the bottom of the pressure plate (13) is fixedly connected with a rubber pad (14); a damping rod (17) is fixedly connected between the mounting plate (6) and the pressure plate (13); the bottom of the fixed block (7) is fixedly connected with a button (15); the outer side of the support beam (1) is fixedly connected with a controller (16); the button (15) and the controller (16) are electrically connected; the controller (16) and the crane (5) are electrically connected; and the top of the pressure plate (13) is fixedly connected with a limiting component.

2. A double-beam bridge crane with a lifting limit structure according to claim 1, characterized in that: The limiting assembly comprises a limiting rod (18), the limiting rod (18) being fixedly connected to the top of the pressure plate (13), a limiting groove (19) being provided at the bottom of the main beam (2), and the limiting rod (18) being slidably connected to the middle of the limiting groove (19).

3. The double-beam bridge crane with a lifting limit structure according to claim 1, characterized in that: The connection assembly comprises a positioning block (20), the positioning block (20) being fixedly connected to the top of the mounting plate (6), a second compression spring (21) being fixedly connected inside the main beam (2), a clamping block (22) being fixedly connected to the other end of the second compression spring (21), the clamping block (22) being in contact with the positioning block (20), a clamping groove (23) being provided in the middle of the positioning block (20), the clamping block (22) and the clamping groove (23) being plugged in and matched, and a disassembly assembly being slidably connected to the middle of the main beam (2).

4. A double-beam bridge crane with a lifting limit structure according to claim 3, characterized in that: The disassembly assembly comprises a pull rod (24), the pull rod (24) being slidably connected to the middle part of the main beam (2), one end of the pull rod (24) close to the main beam (2) being fixedly connected to a movable plate (25), the outer side of the movable plate (25) being rotatably connected to a connecting plate (26), the other side of the connecting plate (26) being rotatably connected to a pull plate (27), the pull plate (27) being slidably connected to the inside of the main beam (2), and the side of the pull plate (27) away from the connecting plate (26) being fixedly connected to a side of the block (22) close to the second compression spring (21).

5. The double-beam bridge crane with a lifting limit structure according to claim 1, characterized in that: A T-shaped slot (28) is provided at the bottom of the mounting plate (6), and the T-shaped block (10) is slidably connected to the middle of the T-shaped slot (28).

6. The double-beam bridge crane with a lifting limit structure according to claim 3, characterized in that: A positioning groove (29) is provided at the bottom of the main beam (2), and the positioning block (20) and the positioning groove (29) are plug-fitted.

7. The double-beam bridge crane with a lifting limit structure according to claim 3, characterized in that: A partition is slidably connected inside the main beam (2), and the partition is fixedly connected between the second compression spring (21) and the clamping block (22).

8. The double-beam bridge crane with a lifting limit structure according to claim 4, characterized in that: One end of the pull rod (24) away from the main beam (2) is fixedly connected to a pull ring.

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