Safe bridge crane

Abstract

The utility model relates to the technical field of cranes, and discloses a safe bridge crane which comprises two guide rails fixedly mounted on the ground, vertical beams are slidably mounted at the tops of the two guide rails, the same cross beam is fixedly mounted at the top ends of the two vertical beams, and a linear motor is fixedly mounted at the bottom of the cross beam; and a transverse plate is fixedly installed at the bottom of the linear motor, a lifting assembly and a goods anti-shaking mechanism are arranged on the transverse plate, the lifting assembly is used for lifting goods, the goods anti-shaking mechanism comprises a fixed beam, a hydraulic cylinder, a U-shaped plate, a first motor, a bidirectional lead screw and two baffles, and the fixed beam is fixedly installed on the rear side wall of the transverse plate. Compared with the prior art, the cargo anti-shaking mechanism has the following advantages and effects that by arranging the cargo anti-shaking mechanism, cargos lifted to the proper height can be clamped and fixed, shaking of the cargos in the moving process is effectively restrained, the collision risk is reduced, and the safety and stability of the cargo lifting process are improved.

Description

Technical Field

[0001] This application relates to the field of crane technology, and in particular to a safety-type bridge crane. Background Technology

[0002] Bridge cranes are lifting equipment that spans across workshops, warehouses, and material yards for material handling. Because their ends rest on tall concrete pillars or metal supports, they resemble bridges. The bridge frame of a bridge crane runs longitudinally along rails laid on elevated structures on both sides, making full use of the space beneath the bridge frame for material handling without being obstructed by ground equipment. It is the most widely used and numerous type of lifting machinery.

[0003] In existing technologies, when traditional bridge cranes are lifting and transferring goods, the inertia during the start-up, stopping, and movement of the bridge crane causes the goods to cause significant swaying of the wire rope. This not only makes it easy for the goods to collide with surrounding equipment, buildings, and other objects, causing damage to the goods or equipment failure, but also poses a threat to the life safety of on-site operators. This swaying phenomenon is more pronounced when lifting heavy goods, greatly reducing the stability and safety of the operation.

[0004] Therefore, we propose a safety-type bridge crane to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a safe bridge crane that can effectively suppress the swaying of goods during movement, reduce the risk of collision, and improve the safety and stability of the goods lifting process.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a safe bridge crane, comprising two guide rails fixed on the ground, with vertical beams slidably mounted on the top of each guide rail, and a common horizontal beam fixedly mounted on the top of each of the two vertical beams, a linear motor fixedly mounted on the bottom of the horizontal beam, and a horizontal plate fixedly mounted on the bottom of the linear motor, with a lifting assembly and a cargo anti-sway mechanism provided on the horizontal plate, the lifting assembly being used to lift cargo, and the cargo anti-sway mechanism comprising a fixed beam, a hydraulic cylinder, a U-shaped plate, a motor, a double-acting screw, and two baffles, the fixed beam being fixedly mounted on the rear side wall of the horizontal plate, the hydraulic cylinder being fixedly mounted on the bottom of the fixed beam, the U-shaped plate being fixedly mounted on the output end of the hydraulic cylinder, the motor being fixedly mounted on the left inner wall of the U-shaped plate, one end of the double-acting screw being fixedly connected to the output shaft end of the motor, and the two baffles being threaded onto the double-acting screw and symmetrically distributed.

[0007] A further configuration of this application is as follows: the lifting assembly includes a winch, a wire rope, and an anti-detachment hook. The winch is fixedly installed at the bottom of the horizontal plate, the wire rope is wound around the output end of the winch, and the anti-detachment hook is fixedly installed at the end of the wire rope away from the winch. The anti-detachment hook is located between two baffles.

[0008] A further feature of this application is that sponge pads are fixedly installed on the sides of the two baffles that are close to each other.

[0009] A further feature of this application is that a bearing seat is fixedly installed on the inner right side of the U-shaped plate, and the right end of the bidirectional lead screw is rotatably connected to the bearing seat.

[0010] A further feature of this application is that a horizontal guide rod located above the bidirectional lead screw is fixedly installed inside the U-shaped plate, and both baffles are slidably sleeved on the horizontal guide rod.

[0011] The further configuration of this application is as follows: the bottom ends of the two vertical beams are provided with grooves, the tops of the two guide rails extend into the corresponding grooves respectively, the tops of the two guide rails are fixedly installed with racks, and the two grooves are provided with walking components. The walking components include a second motor and a gear. The second motor is fixedly installed on the right inner wall of the groove, and the gear is fixedly installed on the output shaft end of the second motor. The gear meshes with the corresponding rack.

[0012] A further feature of this application is that: an assembly plate is fixedly installed on the outer walls of both the left and right sides of the vertical beam, and rollers are rotatably installed on the bottom of the assembly plate.

[0013] A further feature of this application is that guide plates are fixedly installed on both the left and right sides of the bottom end of the vertical beam, and guide grooves are opened on both the left and right sides of the guide rail, with the two guide plates slidably installed in the corresponding guide grooves.

[0014] This application includes at least one of the following beneficial technical effects:

[0015] 1. This application utilizes a lifting assembly to facilitate the lifting and lowering of goods, uses a linear motor to achieve flexible adjustment of goods in the horizontal direction, and uses two sets of traveling assemblies to control two vertical beams to drive the horizontal beam and the lifting assembly below, the goods, and the goods anti-sway mechanism to move forward or backward along the guide rail, thereby realizing long-distance transportation of goods.

[0016] 2. This application utilizes a cargo anti-sway mechanism, which can clamp and fix cargo at a suitable lifting height, effectively suppressing cargo swaying during movement, reducing the risk of collision, and improving the safety and stability of cargo lifting process. Attached Figure Description

[0017] Figure 1 This is a front-view stereoscopic structural diagram of this embodiment.

[0018] Figure 2 This is a rear-view stereoscopic structural diagram of this embodiment.

[0019] Figure 3 This is a three-dimensional structural diagram of the cargo anti-sway mechanism.

[0020] Figure 4 yes Figure 1 A magnified structural diagram of part A in the middle.

[0021] In the diagram, 1. Guide rail; 2. Vertical beam; 3. Horizontal beam; 4. Linear motor; 5. Horizontal plate; 6. Winch; 7. Wire rope; 8. Anti-detachment hook; 9. Cargo anti-sway mechanism; 91. Fixed beam; 92. Hydraulic cylinder; 93. U-shaped plate; 94. Motor 1; 95. Double-acting lead screw; 96. Baffle; 97. Sponge pad; 98. Shaft seat; 99. Horizontal guide rod; 10. Groove; 11. Rack; 12. Motor 2; 13. Gear; 14. Assembly plate; 15. Roller; 16. Guide plate; 17. Guide groove. Detailed Implementation

[0022] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] See Figure 1 , Figure 2 , Figure 3 and Figure 4This application provides a safety-type bridge crane, including two guide rails 1 fixed on the ground. Vertical beams 2 are slidably mounted on the top of each guide rail 1. A common horizontal beam 3 is fixedly mounted on the top of each of the two vertical beams 2. A linear motor 4 is fixedly mounted on the bottom of the horizontal beam 3. A horizontal plate 5 is fixedly mounted on the bottom of the linear motor 4. A lifting assembly and a cargo anti-sway mechanism 9 are provided on the horizontal plate 5. The linear motor 4 can drive the horizontal plate 5, the lifting assembly, and the cargo anti-sway mechanism 9 to move horizontally in the left and right directions, thereby adjusting the lifting position of the cargo. The lifting assembly is used to lift the cargo. The cargo anti-sway mechanism 9 includes a fixed beam 91, a hydraulic cylinder 92, a U-shaped plate 93, a motor 94, a double-acting screw 95, and two baffles 96. The fixed beam 91 is fixedly mounted on the rear side wall of the horizontal plate 5, and the hydraulic cylinder 92 is fixed... Installed at the bottom of the fixed beam 91, the U-shaped plate 93 is fixedly installed at the output end of the hydraulic cylinder 92, and the motor 94 is fixedly installed on the left inner wall of the U-shaped plate 93. One end of the double-acting screw 95 is fixedly connected to the output shaft end of the motor 94. Two baffles 96 are threaded onto the double-acting screw 95 and are symmetrically distributed. Utilizing the telescopic feature of the hydraulic cylinder 92, the U-shaped plate 93 can be controlled to move up and down, and the height of the two baffles 96 can be flexibly adjusted to accommodate goods of different heights. The motor 94 can drive the double-acting screw 95 to rotate, which can make the two baffles 96 move closer or further apart, thereby clamping and limiting goods of different widths. This design can effectively limit the swaying of goods during the hoisting process, greatly reduce the risk of goods colliding with external objects due to swaying, and improve the safety and stability of the hoisting process.

[0024] In this embodiment, the lifting assembly includes a winch 6, a wire rope 7, and an anti-detachment hook 8. The winch 6 is fixedly installed at the bottom of the horizontal plate 5. The wire rope 7 is wound around the output end of the winch 6. The anti-detachment hook 8 is fixedly installed at the end of the wire rope 7 away from the winch 6. The anti-detachment hook 8 is located between two baffles 96. The winch 6 is used to wind and unwind the wire rope 7, thereby adjusting the height of the anti-detachment hook 8. The anti-detachment hook 8 is used to hook the goods to achieve lifting of the goods. The anti-detachment hook 8 can effectively prevent the goods from accidentally falling off during the lifting process, ensuring the safety of the lifting operation from a basic functional perspective and reducing the possibility of accidents caused by falling goods.

[0025] In this embodiment, a sponge pad 97 is fixedly installed on the side of the two baffles 96 that are close to each other. The design of the sponge pad 97 can prevent the baffles 96 from directly contacting the goods and causing hard damage to the surface of the goods.

[0026] In this embodiment, a bearing seat 98 is fixedly installed on the inner right side of the U-shaped plate 93, and the right end of the bidirectional lead screw 95 is rotatably connected to the bearing seat 98 to ensure that the bidirectional lead screw 95 rotates smoothly.

[0027] In this embodiment, a horizontal guide rod 99 is fixedly installed inside the U-shaped plate 93 above the bidirectional lead screw 95. Both baffles 96 are slidably sleeved on the horizontal guide rod 99. The design of the horizontal guide rod 99 can guide the movement direction of the two baffles 96, ensuring that the two baffles 96 maintain stable horizontal movement.

[0028] In this embodiment, the bottom ends of the two vertical beams 2 are provided with grooves 10, the tops of the two guide rails 1 extend into the corresponding grooves 10, and racks 11 are fixedly installed on the tops of the two guide rails 1. Traveling components are provided in the two grooves 10. Under the coordinated action of the two sets of traveling components, the two vertical beams 2 and the horizontal beam 3 can be controlled to move linearly, thereby facilitating the transfer of hoisted goods. The traveling components include a second motor 12 and a gear 13. The second motor 12 is fixedly installed on the right inner wall of the groove 10, and the gear 13 is fixedly installed on the output shaft end of the second motor 12. The gear 13 meshes with the corresponding rack 11. The second motor 12 can control the rotation of the gear 13. By using the meshing transmission action of the gear 13 and the rack 11, the vertical beam 2 can be controlled to move linearly along the guide rail 1.

[0029] In this embodiment, assembly plates 14 are fixedly installed on the outer walls of both the left and right sides of the vertical beam 2. Rollers 15 are rotatably installed on the bottom of the assembly plates 14. The design of the rollers 15 enables the bridge crane to play an auxiliary support role when moving, further improving the smoothness of the bridge crane's movement.

[0030] In this embodiment, guide plates 16 are fixedly installed on both the left and right sides of the bottom end of the vertical beam 2, and guide grooves 17 are opened on both the left and right sides of the guide rail 1. The two guide plates 16 are slidably installed in the corresponding guide grooves 17. By utilizing the sliding cooperation between the guide plates 16 and the guide grooves 17, the movement trajectory of the vertical beam 2 is effectively restricted, deviation is avoided, and the overall stability of the bridge crane is enhanced.

[0031] In this embodiment, both motor 94 and motor 12 are reversible motors. The wiring connection and control methods of linear motor 4, winch 6, hydraulic cylinder 92, motor 94 and motor 12 are conventional technologies in the field and have been fully disclosed, so they will not be described in detail here.

[0032] Based on the above structure, the working principle of the safety-type bridge crane provided in this application is as follows:

[0033] When lifting goods, control the winch 6 to run in reverse, which will gradually release the wire rope 7 and lower the anti-detachment hook 8. When the anti-detachment hook 8 has descended to a suitable height and hooked the goods and confirmed to be secure, control the winch 6 to run in forward, which will gradually wind up the wire rope 7 and use the anti-detachment hook 8 to lift the goods to a suitable height, so that the goods are between the two baffles 96, thus completing the lifting action.

[0034] After the goods are lifted, the hydraulic cylinder 92 is extended, which pushes the U-shaped plate 93 to move vertically downward. When the two baffles 96 are adjusted to a suitable position that matches the height of the goods, the hydraulic cylinder 92 stops running. Then, the motor 94 is rotated forward, and the output shaft of the motor 94 drives the double-acting screw 95 to rotate. Since the two baffles 96 are threaded on the double-acting screw 95 and are symmetrically distributed, the forward rotation of the double-acting screw 95 causes the two baffles 96 to move closer to each other until the sponge pads 97 on the two baffles 96 are in tight contact with the two sides of the goods. At this point, the motor 94 stops running, thus clamping and fixing the goods. This method of clamping and fixing the goods effectively suppresses the shaking of the goods during movement, reduces the risk of collision, and improves the safety and stability of the goods lifting process.

[0035] After the hoisted goods are clamped and secured, the two motors 12 are controlled to rotate forward or in reverse. The two motors 12 drive the corresponding gears 13 to rotate. Since the gears 13 mesh with the rack 11 at the top of the guide rail 1, the rotation of the gears 13 is converted into the linear movement of the vertical beam 2 along the guide rail 1. The two vertical beams 2 move synchronously under the coordinated action of the two sets of walking components, thereby driving the crossbeam 3 and the hoisting components below, the goods and the goods anti-sway mechanism to move forward or backward along the guide rail 1 as a whole, realizing the long-distance transfer of goods. During this process, the rollers 15 on the left and right sides of the vertical beam 2 rotate with the movement of the vertical beam 2, playing an auxiliary support role and making the movement smoother. At the same time, the guide plate 16 slides in the guide groove 17 of the guide rail 1, strictly limiting the movement trajectory of the vertical beam 2, avoiding deviation, and ensuring the stability of forward or backward movement.

[0036] By controlling the operation of linear motor 4, linear motor 4 drives horizontal plate 5 to move horizontally left and right. Horizontal plate 5 drives the lifting components, cargo anti-sway mechanism and cargo to move synchronously, so that cargo can be accurately transferred to the target horizontal position according to the needs. This process realizes the flexible adjustment of cargo in the horizontal direction and improves the flexibility of operation.

[0037] After the goods are transferred to the desired location, the motor 94 is reversed. The output shaft of the motor 94 drives the bidirectional lead screw 95 to rotate, which makes the two baffles 96 move away from each other. The sponge pads 97 on the two baffles 96 no longer contact the goods. Then, the hydraulic cylinder 92 is retracted and reset, which controls the U-shaped plate 93 to rise and return to its original position. Then, the winch 6 is reversed to gradually release the wire rope 7, which lowers the goods to the designated position.

Claims

1. A safety bridge crane, characterized in that The system includes two guide rails (1) fixed to the ground. Vertical beams (2) are slidably mounted on the top of each guide rail (1). A single horizontal beam (3) is fixedly mounted on the top of each vertical beam (2). A linear motor (4) is fixedly mounted on the bottom of the horizontal beam (3). A horizontal plate (5) is fixedly mounted on the bottom of the linear motor (4). A lifting assembly and a cargo anti-sway mechanism (9) are provided on the horizontal plate (5). The lifting assembly is used to lift cargo. The cargo anti-sway mechanism (9) includes a fixed beam (91), a hydraulic cylinder (92), a U-shaped plate (93), and a motor (94). 4) A two-way lead screw (95) and two baffles (96). The fixed beam (91) is fixedly installed on the rear side wall of the horizontal plate (5). The hydraulic cylinder (92) is fixedly installed at the bottom of the fixed beam (91). The U-shaped plate (93) is fixedly installed at the output end of the hydraulic cylinder (92). The motor (94) is fixedly installed on the left inner wall of the U-shaped plate (93). One end of the two-way lead screw (95) is fixedly connected to the output shaft end of the motor (94). The two baffles (96) are threaded on the two-way lead screw (95) and are symmetrically distributed.

2. A safety bridge crane according to claim 1, characterized in that The lifting assembly includes a winch (6), a wire rope (7), and an anti-derailment hook (8). The winch (6) is fixedly installed at the bottom of the horizontal plate (5). The wire rope (7) is wound around the output end of the winch (6). The anti-derailment hook (8) is fixedly installed at the end of the wire rope (7) away from the winch (6). The anti-derailment hook (8) is located between the two baffles (96).

3. The safety bridge crane according to claim 1, characterized in that: Both of the two baffles (96) are fixedly installed with sponge pads (97) on the side that is close to each other.

4. The safety bridge crane according to claim 1, characterized in that: A bearing seat (98) is fixedly installed on the inner right side of the U-shaped plate (93), and the right end of the bidirectional lead screw (95) is rotatably connected to the bearing seat (98).

5. The safety bridge crane according to claim 1, characterized in that: The U-shaped plate (93) has a horizontal guide rod (99) fixedly installed above the bidirectional lead screw (95), and the two baffles (96) are slidably sleeved on the horizontal guide rod (99).

6. The safety bridge crane according to claim 1, characterized in that: The bottom ends of the two vertical beams (2) are provided with grooves (10), the tops of the two guide rails (1) extend into the corresponding grooves (10), the tops of the two guide rails (1) are fixedly installed with racks (11), and the two grooves (10) are provided with walking components. The walking components include a second motor (12) and a gear (13). The second motor (12) is fixedly installed on the right inner wall of the groove (10), and the gear (13) is fixedly installed on the output shaft end of the second motor (12). The gear (13) meshes with the corresponding rack (11).

7. A safety bridge crane according to claim 6, characterized in that Assembly plates (14) are fixedly installed on the outer walls of both sides of the vertical beam (2), and rollers (15) are rotatably installed on the bottom of the assembly plates (14).

8. A safety bridge crane according to claim 6, characterized in that: The bottom end of the vertical beam (2) is fixedly provided with a guide plate (16) on the left and right sides, the left and right sides of the guide rail (1) are provided with a guide groove (17), and two guide plates (16) are respectively slidably installed in the corresponding guide grooves (17).

Images