Hoist portal crane

Abstract

The utility model discloses a hoist portal crane which comprises a supporting beam, two groups of sliding assemblies are simultaneously connected to two opposite sides of the supporting beam in a sliding mode, motors are installed at the lower ends of the sliding assemblies, rubber connecting blocks are installed on two adjacent sides of the two motors, one side of each rubber connecting block is fixedly connected with a sliding block, and the other side of each rubber connecting block is fixedly connected with a sliding block. A buffer block is inserted into the side, away from the motor, of the sliding block, limiting grooves are formed in the two opposite sides of the buffer block at the same time, limiting blocks are installed on the two opposite sides, close to the limiting grooves, of the inner wall of the sliding block, a spring is arranged in the sliding block, and a movable rod is inserted into one end of the buffer block. An air pressure rod is inserted into the end, close to the motor, of the sliding block, and an air pressure column is inserted into one end of the air pressure rod. According to the utility model, the spring is matched with the air pressure rod and the air pressure column, the buffer characteristic of the spring is quickly responded in the early stage of collision, and the air pressure buffer weakens the residual impact force again, thereby ensuring the stable operation of the motor.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, and in particular to a hoist gantry crane. Background Technology

[0002] A hoist gantry crane is a type of gantry crane that combines the structural features of a gantry crane with the lifting function of an electric hoist.

[0003] The application of double electric hoist gantry cranes in industrial production is becoming increasingly widespread. Since the two electric hoists run on the same track or in a close area, collisions between the two motors can occur due to excessive speed of the sliding components or lack of attention during operation. This can lead to deformation of the motor housing, damage to the hook, and failure of the motor and transmission components. It can also cause heavy objects to fall, posing a serious threat to personnel and surrounding equipment. Existing anti-collision technologies mostly focus on detection and early warning in a single direction, lacking a comprehensive and effective buffer protection mechanism, making it difficult to ensure the absolute safe operation of double electric hoists under various complex working conditions.

[0004] Therefore, we provide a hoist-type gantry crane. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a hoist-type gantry crane that can buffer the impact of motor collisions.

[0006] In view of this, the present invention provides a gantry crane with a hoist, including a support beam. Two sets of sliding components are slidably connected to opposite sides of the support beam. The two sets of sliding components are located at different positions on the same horizontal plane. A motor is installed at the lower end of each sliding component. Rubber connecting blocks are installed on both adjacent sides of the two motors. A sliding block is fixedly connected to one side of each rubber connecting block. A buffer block is inserted into the side of the sliding block away from the motor. Limiting grooves are opened on opposite sides of the buffer block. Limiting blocks are installed on opposite sides of the inner wall of the sliding block near the limiting grooves. The limiting blocks slide inside the limiting grooves. A spring is provided inside the sliding block. The spring is located between the buffer block and the front inner wall of the sliding block. A movable rod is inserted into one end of the buffer block. A pneumatic rod is inserted into the end of the sliding block near the motor. The pneumatic rod and the movable rod slide inside the sliding block. A pneumatic column is inserted into one end of the pneumatic rod.

[0007] Preferably, the pneumatic column and the movable rod are located on the same horizontal plane, and there is a certain gap between the movable rod and the pneumatic column.

[0008] Preferably, a piston block and a connecting block are respectively installed at opposite ends of the pneumatic rod. The piston block slides inside the pneumatic column and is in close contact with the inner wall of the pneumatic column. The connecting block moves inside the sliding block.

[0009] Preferably, the lower end of the support beam is provided with a movable groove, and the sliding block slides inside the movable groove.

[0010] Preferably, the support connecting plate has sliding grooves on both sides, the support connecting plate slides inside the sliding grooves, and a plurality of rotating beads are rotatably connected to the support connecting plate.

[0011] Preferably, a fixing block is inserted into one end of the air pressure column, and a connecting plate is installed on the side of the fixing block and the sliding block adjacent to each other. Slider blocks are installed on both sides of the fixing block opposite to each other, and the sliders slide inside the sliding groove.

[0012] Preferably, a limiting rubber ring is installed on the outer surface of the buffer block, and the limiting rubber ring is located at one-third of the buffer block.

[0013] Compared with the prior art, the present invention provides a hoist-type gantry crane, which has the following beneficial effects:

[0014] 1. This utility model uses a spring and a buffer block as the first buffer. The impact force of the motor collision compresses the spring, reducing the severity of the initial collision. This gradual buffering provides a better transition for the subsequent second buffering, making the entire buffering process smoother and effectively reducing the damage caused by the impact force at the moment of collision. A pneumatic rod and a pneumatic column are used as the second buffering, which take over after the first buffering to further reduce the remaining impact force, further reduce the damage caused by the collision impact force, improve the protection of the motor, and ensure safe operation.

[0015] 2. This utility model, with the guidance and support of the sliding groove and the supporting connecting plate, ensures that the sliding block will not fall off and that the direction and angle of the sliding block are accurate during movement. The use of rotating beads to drive the supporting connecting plate to move in the sliding groove can reduce the friction between the supporting connecting plate and the inner wall of the sliding groove, improve the smoothness of the sliding block movement, and prevent jamming.

[0016] 3. This utility model limits the compression state of the spring by using a limiting rubber ring to prevent the spring from being damaged due to excessive compression and ensure that the spring can be used continuously.

[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a hoist-type gantry crane proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the sliding mechanism of a hoist-type gantry crane proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of a spring buffer structure for a hoist-type gantry crane proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of a pneumatic buffer structure for a hoist-type gantry crane proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of the sliding connection structure of a hoist gantry crane proposed in this utility model.

[0023] In the diagram: 1. Support beam; 2. Sliding assembly; 3. Motor; 4. Sliding block; 5. Buffer block; 6. Spring; 7. Limiting block; 8. Movable rod; 9. Pneumatic rod; 10. Pneumatic column; 11. Rubber connecting block; 13. Piston block; 14. Connecting block; 15. Limiting rubber ring; 16. Limiting groove; 17. Support connecting plate; 18. Rotating ball; 19. Fixed block; 20. Sliding block; 21. Movable groove; 22. Sliding groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example: A gantry crane with a hoist mechanism, such as Figure 1 - Figure 5As shown, the device includes a support beam 1. Two sets of sliding components 2 are slidably connected to opposite sides of the support beam 1. The two sets of sliding components 2 are located at different positions on the same horizontal plane. A motor 3 is installed at the lower end of the sliding component 2. Rubber connecting blocks 11 are installed on both sides of the two adjacent motors 3. A sliding block 4 is fixedly connected to one side of the rubber connecting block 11. A buffer block 5 is inserted into the side of the sliding block 4 away from the motor 3. Limiting grooves 16 are opened on opposite sides of the buffer block 5. Limiting blocks 7 are installed on opposite sides of the inner wall of the sliding block 4 near the limiting grooves 16. The limiting blocks 7 slide inside the limiting grooves 16. A spring 6 is installed inside the sliding block 4. The spring 6 is located between the buffer block 5 and the inner wall of the front end of the sliding block 4. A movable rod 8 is inserted into one end of the buffer block 5. A pneumatic rod 9 is inserted into the end of the sliding block 4 near the motor 3. The pneumatic rod 9 and the movable rod 8 slide inside the sliding block 4. A pneumatic column 10 is inserted into one end of the pneumatic rod 9.

[0027] When the two motors 3 are about to collide, the two buffer blocks 5 first come into contact. The buffer blocks 5 move inward towards the sliding block 4. Because the limiting block 7 remains stationary, the spring 6 is compressed, providing the first buffering effect through the buffer blocks 5. At this time, the movable rod 8 moves simultaneously with the buffer blocks 5. When the movable rod 8 comes into contact with the pneumatic rod 9, it continues to move under the impact. The pneumatic rod 9 moves towards the pneumatic column 10, compressing the gas inside the pneumatic column 10, providing a second buffering effect. With the spring 6 and buffer blocks 5 acting as the first buffer, the impact force of the motor 3 collision compresses the spring 6, reducing the severity of the initial collision. This gradual buffering provides a better transition for the subsequent second buffering. This makes the entire buffering process smoother and effectively reduces the damage caused by the impact force at the moment of collision. The pneumatic rod 9 and pneumatic column 10 are used as a second buffer, which take over after the first buffer to further reduce the remaining impact force and further reduce the damage caused by the collision impact force, improve the protection of motor 3, and ensure safe operation. The spring 6 works in conjunction with the pneumatic rod 9 and pneumatic column 10. The buffering characteristics of the spring 6 respond quickly in the early stage of the collision, while the pneumatic buffer weakens the remaining impact force again. The two form a complete and smooth buffering process, which minimizes the adverse effects of the collision on motor 3 and ensures the safe and stable operation of motor 3 in complex working environments.

[0028] like Figure 1 - Figure 5 As shown, the pneumatic column 10 and the movable rod 8 are located on the same horizontal plane, and there is a certain gap between the movable rod 8 and the pneumatic column 9.

[0029] Piston block 13 and connecting block 14 are respectively installed at opposite ends of the pneumatic rod 9. Piston block 13 slides inside the pneumatic column 10 and is in close contact with the inner wall of the pneumatic column 10. Connecting block 14 moves inside the sliding block 4.

[0030] When the pneumatic rod 9 is compressed, it pushes the piston block 13 to move inside the pneumatic column 10. Because the piston block 13 is tightly attached to the inner wall of the pneumatic column 10, the gas can be effectively compressed, reducing gas leakage. The connecting block 14 can increase the contact area between the movable rod 8 and the pneumatic rod 9, ensuring that the movable rod 8 can make timely contact with the pneumatic rod 9 when it is compressed.

[0031] like Figure 1 - Figure 5 As shown, the lower end of the support beam 1 is provided with a movable groove 21, and the sliding block 4 slides inside the movable groove 21.

[0032] The sliding block 4 is equipped with support connecting plates 17 on both sides. The inner wall of the movable groove 21 is provided with sliding grooves 22 on both sides near the support connecting plates 17. The support connecting plates 17 slide inside the sliding grooves 22. Several rotating beads 18 are rotatably connected to the support connecting plates 17.

[0033] With the guidance and support of the sliding groove 22 and the supporting connecting plate 17, the sliding block 4 will not fall off, and the direction and angle of the sliding block 4 are accurate during the movement. The rotating ball 18 drives the supporting connecting plate 17 to move in the sliding groove 22, which can reduce the friction between the supporting connecting plate 17 and the inner wall of the sliding groove 22, improve the smoothness of the movement of the sliding block 4, and prevent jamming.

[0034] like Figure 1 - Figure 5 As shown, a fixed block 19 is inserted into one end of the air pressure column 10. A connecting plate is installed on the side adjacent to the fixed block 19 and the sliding block 4. Slider 20 is installed on both sides of the fixed block 19. The slider 20 slides inside the sliding groove 22.

[0035] The fixed block 19 provides support and limits the pneumatic column 10, ensuring its stability during operation. Under the support and limiting of the slider 20 and the sliding groove 22, the sliding component 2 is further limited to prevent it from detaching from the slide rail and causing the motor 3 to fall, thus further improving the stability and safety of the device.

[0036] like Figure 1 - Figure 5 As shown, a limiting rubber ring 15 is installed on the outer surface of the buffer block 5, and the limiting rubber ring 15 is located at one-third of the buffer block 5.

[0037] The compression state of the spring 6 is limited by the limiting rubber ring 15 to prevent the spring 6 from being damaged due to excessive compression and to ensure that the spring 6 can be used continuously.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hoist-type gantry crane, comprising a support beam (1), characterized in that, The support beam (1) is slidably connected to two sets of sliding components (2) on opposite sides. The two sets of sliding components (2) are located at different positions on the same horizontal plane. A motor (3) is installed at the lower end of the sliding component (2). Rubber connecting blocks (11) are installed on both sides of the two motors (3). A sliding block (4) is fixedly connected to one side of the rubber connecting block (11). A buffer block (5) is inserted into the side of the sliding block (4) away from the motor (3). Limiting grooves (16) are opened on opposite sides of the buffer block (5). The inner wall of the sliding block (4) is close to the limiting groove. (16) Limiting blocks (7) are installed on both sides. The limiting blocks (7) slide inside the limiting groove (16). A spring (6) is provided inside the sliding block (4). The spring (6) is located between the buffer block (5) and the inner wall of the front end of the sliding block (4). A movable rod (8) is inserted into one end of the buffer block (5). A pneumatic rod (9) is inserted into one end of the sliding block (4) near the motor (3). The pneumatic rod (9) and the movable rod (8) slide inside the sliding block (4). A pneumatic column (10) is inserted into one end of the pneumatic rod (9).

2. A hoist-type gantry crane according to claim 1, characterized in that, The pneumatic column (10) and the movable rod (8) are located on the same horizontal plane, and there is a certain gap between the movable rod (8) and the pneumatic column (9).

3. A hoist-type gantry crane according to claim 2, characterized in that, The pneumatic rod (9) is equipped with a piston block (13) and a connecting block (14) at opposite ends. The piston block (13) slides inside the pneumatic column (10) and is in close contact with the inner wall of the pneumatic column (10). The connecting block (14) moves inside the sliding block (4).

4. A hoist-type gantry crane according to claim 1, characterized in that, The lower end of the support beam (1) is provided with a movable groove (21), and the sliding block (4) slides inside the movable groove (21).

5. A hoist-type gantry crane according to claim 4, characterized in that, The sliding block (4) is equipped with a support connecting plate (17) on both sides. The inner wall of the movable groove (21) is provided with a sliding groove (22) on both sides near the support connecting plate (17). The support connecting plate (17) slides inside the sliding groove (22). Several rotating beads (18) are rotatably connected to the support connecting plate (17).

6. A hoist-type gantry crane according to claim 5, characterized in that, One end of the air pressure column (10) is connected to a fixing block (19). The fixing block (19) and the sliding block (4) are both equipped with connecting plates on their adjacent sides. The fixing block (19) is equipped with sliders (20) on both sides opposite to each other. The sliders (20) slide inside the sliding groove (22).

7. A hoist-type gantry crane according to claim 1, characterized in that, A limiting rubber ring (15) is installed on the outer surface of the buffer block (5), and the limiting rubber ring (15) is located at one-third of the buffer block (5).

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