Door machine anti-run brake mechanism

Abstract

This utility model discloses a gantry crane anti-runaway braking mechanism, including a mounting plate, a mounting block, a brake disc, a pressure rod, and a pressure plate. The mounting plate has a mounting cavity, and the bottom of the mounting block is connected to a drive plate via a vertical rod. A drive component drives a drive shaft, which rotates a threaded rod through a connecting structure, causing the mounting block and drive plate to move. The drive plate approaches the pressure plate, compressing an elastic component sleeved on a telescopic tube. The pressure plate drives the brake rod, causing the brake block to extend from the brake groove to between symmetrical brake rods. When the traveling wheel rotates, it drives the brake disc to rotate through a driven shaft and a connecting mechanism. The brake block, driven by the brake disc, attempts to continue rotating but is stopped by a limit rod, generating a reverse braking torque that stops the rotation of the brake disc and driven shaft, thereby stopping the traveling wheel and achieving active braking. This mechanism has a good braking effect, preventing the traveling wheel from rotating when not needed, improving the practicality and safety of the device in various working environments, and effectively ensuring the stable operation of the gantry crane.

Description

Technical Field

[0001] This utility model relates to a braking mechanism, specifically a gantry crane anti-running braking mechanism. Background Technology

[0002] Gantry cranes, also known as portal cranes, are large-scale material handling equipment that play a crucial role in numerous locations such as ports, docks, logistics warehouses, and construction sites. With their large working span and lifting height, they can efficiently complete tasks such as loading, unloading, handling, and stacking of goods, greatly improving the efficiency of logistics transportation and engineering construction. They are an indispensable and important piece of equipment in modern industry and logistics.

[0003] However, gantry cranes pose numerous safety hazards during operation, with runaway cranes being particularly prominent. Runaway cranes typically refer to the uncontrolled slippage or rotation of the traveling wheels under non-human-controlled or accidental circumstances. This situation can be caused by various factors, such as the gantry crane's own weight causing the traveling wheels to slip on sloping ground; the lateral force exerted by the wind on the gantry crane in strong winds potentially causing it to move; or a malfunction in the gantry crane's braking system, resulting in a runaway accident. Therefore, a runaway prevention braking mechanism for gantry cranes needs to be designed to solve this problem. Utility Model Content

[0004] The purpose of this utility model is to provide a gantry crane anti-running braking mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A gantry crane anti-running braking mechanism includes a mounting plate with a mounting cavity. Mounting blocks are symmetrically slidably mounted in the mounting cavity. A vertical rod is mounted at the bottom of each mounting block. A drive plate is mounted at the end of the vertical rod away from the mounting block. A connecting plate is mounted at the bottom of the mounting plate. Vertical plates are symmetrically mounted at the bottom of the connecting plate. A rotating shaft is rotatably mounted on the vertical plates, and a traveling wheel is mounted on the rotating shaft. A drive assembly is mounted on the mounting plate and connected to the mounting blocks. An auxiliary plate is symmetrically mounted at the bottom of the mounting plate. A transmission assembly is mounted on the auxiliary plate. One end of the transmission assembly is connected to the rotating shaft, and the other end is connected to a brake disc. A brake groove is formed on the brake disc, and a brake block is slidably mounted in the brake groove. A telescopic tube is mounted on the brake disc. A pressure plate is connected to the end of the telescopic tube away from the brake disc. A brake rod is hinged to one side of the pressure plate, and the end of the brake rod away from the pressure plate is hinged to the brake block. An elastic component is sleeved on the telescopic tube, with one end connected to the brake disc and the other end connected to the pressure plate. Limiting rods are symmetrically mounted on the auxiliary plate.

[0006] As a further embodiment of this utility model: the driving assembly includes a driving component, the driving component is mounted on a mounting plate, a driving shaft is mounted on the output end of the driving component, the end of the driving shaft away from the driving component extends into the mounting cavity, threaded rods are symmetrically arranged in the mounting cavity, one end of the threaded rod is rotatably connected to the side wall of the mounting groove, and the other end is connected to a connecting structure, the end of the connecting structure away from the threaded rod is connected to the driving shaft, and the threaded rod is connected to the mounting block.

[0007] As a further embodiment of this utility model: the transmission assembly includes a driven shaft, which is rotatably connected to an auxiliary plate. One end of the driven shaft is connected to a connecting mechanism, and the other end is fixedly connected to a brake disc. The end of the connecting mechanism away from the driven shaft is connected to a rotating shaft.

[0008] As a further embodiment of this invention, the elastic component is a spring.

[0009] As a further embodiment of this invention, the driving component is a stepper motor.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: When the device is in use, the driving component drives the drive shaft connected to it to rotate. The rotation of the drive shaft drives the threaded rod connected to it to rotate through the connecting unit. The rotation of the threaded rod drives the mounting block connected to it to move under the action of the thread. The movement of the mounting block drives the drive plate at one end of the vertical rod to move. The drive plate moves closer to the pressure plate. After the drive plate contacts the pressure plate, as the drive plate continues to move, the elastic component is compressed. At the same time, the pressure plate drives the brake rod on one side to rotate. The brake rod drives the brake block to slide in the brake groove. During the sliding process, the brake block extends out of the brake groove, so that the brake block extends between the symmetrically arranged limit rods. When the traveling wheel rotates due to external factors, it drives the brake disc to rotate through the transmission of the driven shaft and the connecting mechanism. The brake block attempts to continue to rotate with the brake disc under the drive of the brake disc, but the limit rod will prevent this movement of the brake block, thereby generating a reverse braking torque between the brake block and the limit rod. This braking torque will be quickly transmitted to the brake disc, causing the rotation speed of the brake disc to gradually slow down until it finally stops rotating. Because the brake disc is connected to the driven shaft, the rotation of the driven shaft will also stop, thereby stopping the rotation of the traveling wheel through the transmission relationship, achieving the effect of active braking. The braking effect is good and can effectively prevent the traveling wheel from rotating when it is not needed, improving the practicality and safety of the device in various working environments. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a gantry crane anti-running braking mechanism.

[0012] Figure 2 This is a schematic diagram of the threaded rod in a gantry crane anti-running braking mechanism.

[0013] Figure 3 This is a schematic diagram of the traveling wheel in a gantry crane anti-running braking mechanism.

[0014] Figure 4 This is a schematic diagram of the brake disc in a gantry crane anti-runaway braking mechanism.

[0015] In the diagram: 1. Mounting plate; 2. Driving component; 3. Drive shaft; 4. Connecting unit; 5. Threaded rod; 6. Mounting block; 7. Vertical rod; 8. Drive plate; 9. Pressure plate; 10. Brake lever; 11. Brake disc; 12. Telescopic tube; 13. Elastic component; 14. Connecting plate; 15. Vertical plate; 16. Driven shaft; 17. Connecting mechanism; 18. Rotating shaft; 19. Auxiliary plate; 20. Limiting rod; 21. Brake block; 22. Brake groove. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] Please see Figures 1-4As an embodiment of this utility model, a door operator anti-run braking mechanism includes a mounting plate 1, on which a mounting cavity is formed. Mounting blocks 6 are symmetrically slidably mounted in the mounting cavity. A vertical rod 7 is mounted at the bottom of the mounting block 6. A drive plate 8 is mounted at the end of the vertical rod 7 away from the mounting block 6. A connecting plate 14 is mounted at the bottom of the mounting plate 1. Vertical plates 15 are symmetrically mounted at the bottom of the connecting plate 14. A rotating shaft 18 is rotatably mounted on the vertical plate 15. A traveling wheel is mounted on the rotating shaft 18. A drive assembly is mounted on the mounting plate 1. The drive assembly is connected to the mounting block 6. The drive assembly includes a drive component 2, which is mounted on the mounting plate 1. A drive shaft 3 is mounted at the output end of the drive component 2. The end of the drive shaft 3 away from the drive component 2 extends into the mounting cavity. Threaded rods 5 are symmetrically arranged in the mounting cavity. One end of the threaded rod 5 is rotatably connected to the side wall of the mounting groove, and the other end is connected to a connecting structure. The end of the connecting mechanism 17 away from the threaded rod 5 is connected to the drive shaft 3. The threaded rod 5 is connected to the mounting block 6. An auxiliary plate 19 is symmetrically installed on the bottom of the mounting plate 1. A transmission assembly is installed on the auxiliary plate 19. The transmission assembly includes a driven shaft 16, which is rotatably connected to the auxiliary plate 19. One end of the driven shaft 16 is connected to a connecting mechanism 17, and the other end is fixedly connected to a brake disc 11. The end of the connecting mechanism 17 away from the driven shaft 16 is connected to a rotating shaft 18. A brake groove 22 is provided on the brake disc 11. A brake block 21 is slidably installed in the brake groove 22. A telescopic tube 12 is installed on the brake disc 11. A pressure plate 9 is connected to the end of the telescopic tube 12 away from the brake disc 11. A brake rod 10 is hinged to one side of the pressure plate 9. The end of the brake rod 10 away from the pressure plate 9 is hinged to the brake block 21. An elastic component 13 is sleeved on the telescopic tube 12. One end of the elastic component 13 is connected to the brake disc 11, and the other end is connected to the pressure plate 9. Limiting rods 20 are symmetrically installed on the auxiliary plate 19.

[0018] In this embodiment, when the device is in use, the driving component 2 drives the driving shaft 3 connected to it to rotate. The rotation of the driving shaft 3 drives the threaded rod 5 connected to it to rotate through the connecting unit 4. The rotation of the threaded rod 5 drives the mounting block 6 connected to it to move under the action of the thread. The movement of the mounting block 6 drives the driving plate 8 at one end of the vertical rod 7 to move. The driving plate 8 moves closer to the pressure plate 9. After the driving plate 8 contacts the pressure plate 9, as the driving plate 8 continues to move, the elastic component 13 is compressed. At the same time, the pressure plate 9 drives the brake lever 10 on one side to rotate. The brake lever 10... The brake block 21 slides in the brake groove 22. During its sliding, the brake block 21 extends out of the brake groove 22, thus extending between the symmetrically arranged limiting rods 20. When the traveling wheel rotates due to external factors, the driven shaft 16 and the connecting mechanism 17 drive the brake disc 11 to rotate. Under the drive of the brake disc 11, the brake block 21 attempts to continue rotating with the brake disc 11, but the limiting rods 20 prevent this movement of the brake block 21, thereby generating a reverse braking torque between the brake block 21 and the limiting rods 20. This braking torque is quickly transmitted to the brake disc 11, causing the rotation speed of the brake disc 11 to gradually decrease until it finally stops rotating. Since the brake disc 11 is connected to the driven shaft 16, the rotation of the driven shaft 16 also stops, thereby stopping the traveling wheel's rotation through the transmission relationship. This achieves the effect of active braking, providing good braking performance and effectively preventing the traveling wheel from rotating when not needed, thus improving the practicality and safety of the device in various working environments.

[0019] Furthermore, the driving component 2 can be a stepper motor or a servo motor, etc., which will not be described in detail here.

[0020] Furthermore, both the connecting unit 4 and the connecting mechanism 17 can be a gear set or a worm gear and worm wheel combination, which will not be described in detail here.

[0021] Furthermore, the elastic component 13 can be a spring or an elastic sheet, etc., which will not be described in detail here.

[0022] The working principle of this utility model is as follows: When the device is in use, the driving component 2 drives the driving shaft 3 connected to it to rotate. The rotation of the driving shaft 3 drives the threaded rod 5 connected to it to rotate through the connecting unit 4. The rotation of the threaded rod 5 drives the mounting block 6 connected to it to move under the action of the thread. The movement of the mounting block 6 drives the driving plate 8 at one end of the vertical rod 7 to move. The driving plate 8 moves closer to the pressure plate 9. After the driving plate 8 contacts the pressure plate 9, as the driving plate 8 continues to move, the elastic component 13 is compressed. At the same time, the pressure plate 9 drives the brake lever 10 on one side to rotate. The brake block 21 slides within the brake groove 22, extending out of the groove and reaching the symmetrically positioned limiting rods 20. When the traveling wheel rotates due to external factors, the driven shaft 16 and connecting mechanism 17 drive the brake disc 11 to rotate. The brake block 21 attempts to continue rotating with the brake disc 11, but the limiting rods 20 prevent this movement, creating a reverse braking torque between the brake block 21 and the limiting rods 20. This braking torque is quickly transmitted to the brake disc 11, gradually slowing its rotation until it stops. Since the brake disc 11 is connected to the driven shaft 16, the shaft's rotation also stops, thus stopping the traveling wheel's rotation through the transmission relationship. This achieves active braking, providing good braking performance and effectively preventing the traveling wheel from rotating unnecessarily, improving the device's practicality and safety in various working environments.

Claims

1. A gantry crane anti-running braking mechanism, comprising a mounting plate, characterized in that, The mounting plate has a mounting cavity, in which mounting blocks are symmetrically slidably mounted. A vertical rod is mounted on the bottom of the mounting block, and a drive plate is mounted on the end of the vertical rod away from the mounting block. A connecting plate is mounted on the bottom of the mounting plate, and a vertical plate is symmetrically mounted on the bottom of the connecting plate. A rotating shaft is rotatably mounted on the vertical plate, and a traveling wheel is mounted on the rotating shaft. A drive assembly is mounted on the mounting plate and connected to the mounting block. An auxiliary plate is symmetrically mounted on the bottom of the mounting plate, and a transmission assembly is mounted on the auxiliary plate. One end of the transmission assembly is connected to the rotating shaft, and the other end is connected to a brake disc. A brake groove is formed on the brake disc, in which a brake block is slidably mounted. A telescopic tube is mounted on the brake disc, and a pressure plate is connected to the end of the telescopic tube away from the brake disc. A brake rod is hinged to one side of the pressure plate, and the end of the brake rod away from the pressure plate is hinged to the brake block. An elastic component is sleeved on the telescopic tube, with one end connected to the brake disc and the other end connected to the pressure plate. Limiting rods are symmetrically mounted on the auxiliary plate.

2. The gantry crane anti-runaway braking mechanism according to claim 1, characterized in that, The drive assembly includes a drive component mounted on a mounting plate. A drive shaft is mounted on the output end of the drive component. The end of the drive shaft away from the drive component extends into the mounting cavity. Threaded rods are symmetrically arranged in the mounting cavity. One end of the threaded rod is rotatably connected to the side wall of the mounting groove, and the other end is connected to a connecting structure. The end of the connecting structure away from the threaded rod is connected to the drive shaft. The threaded rod is connected to the mounting block.

3. The gantry crane anti-running braking mechanism according to claim 1, characterized in that, The transmission assembly includes a driven shaft, which is rotatably connected to an auxiliary plate. One end of the driven shaft is connected to a connecting mechanism, and the other end is fixedly connected to a brake disc. The end of the connecting mechanism away from the driven shaft is connected to a rotating shaft.

4. The gantry crane anti-runaway braking mechanism according to claim 1, characterized in that, The elastic component is a spring.

5. A gantry crane anti-runaway braking mechanism according to claim 2, characterized in that, The driving component is a stepper motor.

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