Transverse moving mechanism of portal crane

Abstract

The utility model relates to a transverse moving mechanism of a portal crane, which comprises a transverse moving flatcar arranged on a main beam of the portal crane and an electric hoist arranged at the bottom of the transverse moving flatcar, and a cargo bearing structure is arranged at the bottom of the electric hoist. The cargo bearing structure comprises a plurality of connecting plates welded to the outer side of the electric hoist and close to the bottom of the electric hoist, and a top plate is fixedly installed at the bottoms of the connecting plates. According to the transverse moving mechanism of the portal crane, the transverse moving flatcar runs on the main beam of the portal crane and can drive the electric hoist and the cargo bearing structure to transversely move, the top plate, the connecting rod and the bottom plate are fixed to the bottom of the electric hoist through the connecting plate and used for hoisting and putting down cargoes, and after the cargoes are placed on the top of the bottom plate, the two electric push rods are started; after being unfolded, the lifting plates are pushed to descend, make contact with the tops of goods and stably limit the goods, it is guaranteed that the goods cannot shake or fall off in the hoisting and transferring process, safe and stable hoisting and transferring of the goods are achieved through the design, and the operation efficiency and safety are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to door type crane technical field, concretely is a door type crane transverse moving mechanism. BACKGROUND

[0002] The door type crane is a deformation of the bridge crane, and its metal structure is like a door frame, two support legs are installed below the load-bearing girder, and the door type crane can directly walk on the track on the ground, and the door type crane has the characteristics of high utilization rate of site, large operation range, wide adaptability and strong versatility, through the transverse moving mechanism, the door type crane can realize efficient operation in limited space, and the occupation of the site is reduced.

[0003] The Chinese utility model patent with the publication number CN220502468U proposes a "door type crane transverse moving mechanism", and the technical scheme proposes that the hooks at the bottom of the transverse moving flat car on the existing door type crane are fixed, and it is inconvenient to replace the hooks, so that the door type crane cannot be changed to the suitable hooks according to the shape of the goods. The utility model provides the following technical scheme: "a connecting structure, a abutting structure and a hook structure are adopted, the problem that the hooks at the bottom of the transverse moving flat car are inconvenient to replace is solved, the effect that the lifting hook can be firmly fixed and the disassembly of the lifting hook is facilitated is achieved, and the replacement is convenient".

[0004] The above device has the following defects in actual use: the hook structure directly acts on the goods, and if the shape of the goods is irregular or the center of gravity is unstable, the goods is prone to shaking or even falling off in the lifting process, which not only damages the goods, but also threatens the safety of the surrounding environment and personnel, therefore, the door type crane transverse moving mechanism is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the defects of the prior art, the utility model provides a door type crane transverse moving mechanism to overcome the defects in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A door type crane transverse moving mechanism, comprising a transverse moving flat car arranged on a main girder of a door type crane and an electric hoist arranged at the bottom of the transverse moving flat car, and a goods bearing structure is arranged at the bottom of the electric hoist.

[0008] The cargo carrying structure comprises a plurality of connecting plates welded to the outside of the electric hoist and close to the bottom of the electric hoist, the bottom of the plurality of connecting plates is fixedly provided with a top plate, the bottom of the top plate is fixedly provided with four connecting rods, the bottom of the four connecting rods is fixedly provided with a bottom plate, the outside of the four connecting rods is slidably provided with a lifting plate, the lifting plate is located between the top plate and the bottom plate, the bottom of the lifting plate is provided with clamping limiting structures, the top of the top plate is fixedly provided with two electric push rods penetrating through the bottom of the top plate, and the telescopic ends of the two electric push rods are fixedly connected with the top of the lifting plate.

[0009] The lateral moving flat car runs on the main beam of the portal crane, can drive the electric hoist and the cargo carrying structure to move laterally, the bottom of the electric hoist is fixedly provided with the top plate, the connecting rod and the bottom plate through the connecting plate, is used for lifting and lowering the cargo, after the cargo is placed on the top of the bottom plate, two electric push rods are started, they are expanded to push the lifting plate to descend, contact and stably limit the top of the cargo, and the cargo is prevented from shaking or falling off in the hoisting and transferring process, the safety and stable hoisting and transferring of the cargo are realized, and the operation efficiency and safety are improved.

[0010] On the basis of the above technical scheme, the utility model still can make improvement as follows.

[0011] Further, the clamping limiting structure comprises an empty groove plate fixedly installed at the bottom of the lifting plate, two convex blocks penetrating through the bottom of the empty groove plate are slidably installed in the inside of the empty groove plate, side plates are fixedly installed at the bottom of the two convex blocks, a motor is fixedly installed at the right side of the empty groove plate, a bidirectional screw rod penetrating through the inside of the empty groove plate is fixedly installed at the output end of the motor, and the bidirectional screw rod is rotatably installed in the inside of the empty groove plate and threadedly penetrates through the two convex blocks.

[0012] Further, a pressure sensor is fixedly installed at the bottom of the empty groove plate, a controller electrically connected with the pressure sensor is fixedly installed at the top of the top plate, and the controller is electrically connected with the two electric push rods.

[0013] Further, a protective cover is fixedly installed at the top of the top plate and covers the outside of the controller.

[0014] Further, a recess is formed at the top of the bottom plate, and an antiskid pad is fixedly installed at the bottom of the recess.

[0015] Further, a rubber plate is fixedly installed at the bottom of the bottom plate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the portal crane lateral moving mechanism of the utility model;

[0017] Figure 2This is a schematic diagram of the overall cargo-bearing structure of this utility model;

[0018] Figure 3 This is an exploded view of the cargo-bearing structure of this utility model;

[0019] Figure 4 This is a partial cross-sectional schematic diagram of the cargo-bearing structure of this utility model;

[0020] Figure 5 for Figure 2 Enlarged structural diagram at point A in the middle.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Horizontal moving flatcar; 2. Electric hoist; 3. Connecting plate; 4. Top plate; 5. Connecting rod; 6. Bottom plate; 7. Lifting plate; 8. Electric push rod; 9. Hollow slot plate; 10. Convex block; 11. Side plate; 12. Motor; 13. Bidirectional screw; 14. Pressure sensor; 15. Controller; 16. Protective cover; 17. Anti-slip mat; 18. Rubber plate. Detailed Implementation

[0023] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0024] Example 1, such as Figures 1-4 As shown, a gantry crane transverse mechanism includes a transverse flatcar 1 mounted on the main beam of the gantry crane and an electric hoist 2 mounted at the bottom of the transverse flatcar 1. The electric hoist 2 is characterized by having a cargo-bearing structure at its bottom.

[0025] Specifically, the cargo-bearing structure includes multiple connecting plates 3 welded to the outside of the electric hoist 2 and near its bottom. A top plate 4 is fixedly installed at the bottom of the multiple connecting plates 3. Four connecting rods 5 are fixedly installed at the bottom of the top plate 4. A bottom plate 6 is fixedly installed at the bottom of the four connecting rods 5. A lifting plate 7 is slidably installed on the outside of the four connecting rods 5. The lifting plate 7 is located between the top plate 4 and the bottom plate 6. A clamping and limiting structure is provided at the bottom of the lifting plate 7. Two electric push rods 8 are fixedly installed on the top of the top plate 4, extending to its bottom. The telescopic ends of the two electric push rods 8 are fixedly connected to the top of the lifting plate 7.

[0026] The transverse moving flat car 1 runs on the main beam of the portal crane to drive the electric hoist 2 and the cargo carrying structure to move transversely. The top plate 4, the connecting rod 5 and the bottom plate 6 are connected and fixed at the bottom of the electric hoist 2 through a plurality of connecting plates 3. The electric hoist 2 can lift and lower the cargo carrying structure. When the cargo carrying structure falls to the ground, the cargo can be directly placed on the top of the bottom plate 6. After the cargo is placed, the two electric push rods 8 can be controlled to start. After the two electric push rods 8 are started, they are unfolded to push the lifting plate 7 down. The lifting plate 7 contacts the top of the cargo to restrict it. After the cargo is restricted, it can be lifted and transferred. At this time, there is no need to worry about the cargo shaking or falling off.

[0027] Embodiment 2, as shown in the figure, this embodiment is a further improvement on the basis of embodiment 1, which is as follows: Figures 2-4

[0028] The clamping and limiting structure comprises an empty slot plate 9 fixedly installed at the bottom of the lifting plate 7. Two convex blocks 10 penetrating to the bottom of the empty slot plate 9 are slidably installed in the inside of the empty slot plate 9. The bottom of each of the two convex blocks 10 is fixedly installed with a side plate 11. The right side of the empty slot plate 9 is fixedly installed with a motor 12. The output end of the motor 12 is fixedly installed with a bidirectional screw rod 13 penetrating to the inside of the empty slot plate 9. The bidirectional screw rod 13 is rotatably installed in the inside of the empty slot plate 9 and threadedly penetrates the two convex blocks 10.

[0029] In this way, the two side plates 11 are respectively limited to move at the bottom of the empty slot plate 9 by the two convex blocks 10. After the lifting plate 7 lowers to restrict the top of the cargo, the motor 12 can be controlled to start. After the motor 12 starts, the bidirectional screw rod 13 is driven to rotate forward, so that the two convex blocks 10 drive the side plates 11 to approach each other. The two side plates 11 contact the cargo to limit it left and right. Rubber convex point plates are fixedly installed on the opposite sides of the two side plates 11 to prevent the cargo from sliding forward and backward when it is limited by the two side plates 11. The motor 12 drives the bidirectional screw rod 13 to rotate reversely to make the two convex blocks 10 and the side plates 11 move away from each other. At this time, the cargo is released from the limitation.

[0030] Embodiment 3, as shown in the figure, this embodiment is a further improvement on the basis of embodiment 2, which is as follows: Figures 2-5

[0031] A pressure sensor 14 is fixedly installed at the bottom of the empty slot plate 9. A controller 15 electrically connected with the pressure sensor 14 is fixedly installed at the top of the top plate 4. The controller 15 is electrically connected with the two electric push rods 8.

[0032] ​​In this way, the lifting plate 7 and the hollow groove plate 9 are lowered to drive the pressure sensor 14 to be lowered synchronously, and when the pressure sensor 14 contacts the top of the goods, a pressure signal is transmitted to the controller 15, and the controller 15 stops the operation of the two electric push rods 8 to prevent the goods from being damaged by the lifting plate 7 and the hollow groove plate 9.

[0033] It should be noted that the electrical connection in the embodiment includes power connection and control signal connection, and is adapted to 5V, 3.3V or other voltages, and the control signal connection connects the output pin of the controller 15, such as a PWM signal, a control stop signal, to the input end of the drive module of the two electric push rods 8.

[0034] In the embodiment 4, as shown in the figure, the embodiment is a further improvement based on the embodiment 3, and the specific implementation is as follows: Figures 1-4

[0035] The top of the top plate 4 is fixedly provided with a protective cover 16, and the protective cover 16 is arranged outside the controller 15.

[0036] In this way, the protective cover 16 is installed outside the controller 15 to protect the controller 15.

[0037] In the embodiment 5, as shown in the figure, the embodiment is a further improvement based on the embodiment 1, and the specific implementation is as follows: Figures 3-4

[0038] The top of the bottom plate 6 is provided with a groove, and the bottom of the groove is fixedly provided with a non-slip pad 17.

[0039] In this way, the groove serves as a limiting part for the goods, and the non-slip pad 17 can prevent the goods from sliding on the top of the bottom plate 6.

[0040] In the embodiment 6, as shown in the figure, the embodiment is a further improvement based on the embodiment 1, and the specific implementation is as follows: Figures 1-4

[0041] The bottom of the bottom plate 6 is fixedly provided with a rubber plate 18.

[0042] In this way, the vibration transmission of the goods bearing structure when falling to the ground can be reduced.

[0043] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model, and those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the utility model.​​​

Claims

1. A portal crane traversing mechanism comprising a traversing bogie (1) arranged on a portal crane girder and an electric hoist (2) arranged on the bottom of the traversing bogie (1), characterized in that: The bottom of the electric hoist (2) is provided with a cargo bearing structure. The cargo bearing structure comprises a plurality of connecting plates (3) welded to the outside of the electric hoist (2) and close to the bottom thereof, the bottom of the plurality of connecting plates (3) is fixedly installed with a top plate (4), the bottom of the top plate (4) is fixedly installed with four connecting rods (5), the bottom of the four connecting rods (5) is fixedly installed with a bottom plate (6), the outside of the four connecting rods (5) is slidingly installed with a lifting plate (7), the lifting plate (7) is located between the top plate (4) and the bottom plate (6), the bottom of the lifting plate (7) is provided with a clamping limiting structure, the top of the top plate (4) is fixedly installed with two electric push rods (8) penetrating to the bottom thereof, and the telescopic ends of the two electric push rods (8) are fixedly connected with the top of the lifting plate (7).

2. A portal crane traversing mechanism according to claim 1, characterised in that: The clamping limiting structure comprises a hollow groove plate (9) fixedly installed at the bottom of the lifting plate (7), two convex blocks (10) penetrating to the bottom of the hollow groove plate (9) are slidingly installed in the inside of the hollow groove plate (9), the bottom of each of the two convex blocks (10) is fixedly installed with a side plate (11), a motor (12) is fixedly installed on the right side of the hollow groove plate (9), a bidirectional screw rod (13) penetrating to the inside of the hollow groove plate (9) is fixedly installed at the output end of the motor (12), and the bidirectional screw rod (13) is rotatably installed in the inside of the hollow groove plate (9) and threadedly penetrates the two convex blocks (10).

3. A portal crane traversing mechanism according to claim 2, characterised in that: A pressure sensor (14) is fixedly installed at the bottom of the hollow groove plate (9), a controller (15) electrically connected with the pressure sensor (14) is fixedly installed at the top of the top plate (4), and the controller (15) is electrically connected with the two electric push rods (8).

4. A portal crane traversing mechanism according to claim 3, characterised in that: A protective cover (16) is fixedly installed at the top of the top plate (4) and covers the outside of the controller (15).

5. A portal crane traversing mechanism according to claim 1, characterized in that: A recess is formed in the top of the bottom plate (6), and an anti-skid pad (17) is fixedly installed at the bottom of the recess.

6. A portal crane traversing mechanism according to claim 1, characterized in that: A rubber plate (18) is fixedly installed at the bottom of the bottom plate (6).

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