Container portal crane sling anti-collision device

Abstract

The utility model relates to the technical field of crane equipment, in particular to a container portal crane sling anti-collision device which comprises a trolley and a winch, the winch is arranged on the trolley, a steel wire rope is wound on the winch, a fixing plate is arranged on the trolley, and two first buffer assemblies are symmetrically arranged at the bottom of the fixing plate. A second buffering assembly is arranged on the first buffering assembly, the fixed end of the steel wire rope is fixedly connected with a supporting plate, and a movable plate is arranged above the supporting plate. According to the utility model, through the arrangement of the first buffer assembly and the second buffer assembly, when the lifting appliance has a top collision phenomenon, the impact on the lifting appliance is buffered, the impact of the lifting appliance on the trolley is reduced, the collision damage of the lifting appliance and the trolley is avoided, and the use and maintenance cost is reduced; the first buffering assembly and the second buffering assembly act in sequence, multi-stage buffering is achieved, the buffering capacity is improved, the buffering time is prolonged, and impact is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of crane equipment, in particular to an anti-collision device for a container gantry crane hoist. Background Art

[0002] Container gantry crane is a special gantry crane used for loading, unloading, handling and stacking of containers at container terminals, railway freight stations, and storage yards. It lifts and lowers containers by wire ropes to move containers. In the actual working process, the spreader may fail to stop in time during the rising process due to improper operation of the operator or failure of the control system, resulting in the spreader hitting the top, colliding with the trolley, causing damage to the spreader and the trolley, affecting the normal operation of the crane and increasing the use and maintenance costs.

[0003] Therefore, it is necessary to propose a container gantry crane spreader anti-collision device to overcome the defects of the prior art. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and provides a container gantry crane hoisting device anti-collision device.

[0005] The technical solution of the utility model is:

[0006] A container gantry crane hoist anti-collision device comprises a trolley and a winch, wherein the winch is arranged on the trolley, a steel wire rope is wound around the winch, a fixed plate is arranged on the trolley, two groups of first buffer assemblies are symmetrically arranged at the bottom of the fixed plate, a second buffer assembly is arranged on the first buffer assembly, a fixed end of the steel wire rope is fixedly connected to a support plate, and a movable plate is arranged above the support plate.

[0007] Preferably, the first buffer assembly includes a slide rod and two sliders, the two sliders are symmetrically mounted on the slide rod, the sliders are pivotally connected to the fixed plate via a connecting rod, and a first spring is mounted on the slide rod and located on the outside of the sliders.

[0008] Preferably, the second buffer assembly includes a lifting plate, on which two guide rods are symmetrically arranged, and the upper ends of the two guide rods penetrate the slide rod upward, and a second spring is sleeved on the guide rod and located between the lifting plate and the slide rod.

[0009] Preferably, the elastic force of the second spring is smaller than the elastic force of the first spring.

[0010] Preferably, a first connecting seat is provided on the fixing plate, a second connecting seat is provided on the sliding block, one end of the connecting rod is hinged to the first connecting seat, and the other end of the connecting rod is hinged to the second connecting seat.

[0011] Preferably, the movable plate is provided with a through hole for the fixed end of the steel wire rope to pass through and a first slot hole for the movable end of the steel wire rope to pass through.

[0012] Preferably, the fixing plate is provided with a second slot hole for the fixed end of the steel wire rope to pass through and a third slot hole for the movable end of the steel wire rope to pass through.

[0013] Preferably, the fixing plate is provided with an avoidance hole matched with the guide rod.

[0014] Preferably, a first pad is provided on the lower surface of the lifting plate, and a second pad is provided on the lower surface of the sliding rod, and both the first pad and the second pad are made of soft materials.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a first buffer component and a second buffer component, which can buffer the impact of the spreader when the spreader hits the top, absorb the impact force, reduce the impact of the spreader on the trolley, avoid collision damage between the spreader and the trolley, and reduce the cost of use and maintenance. The first buffer component and the second buffer component can act in sequence by setting different elastic forces of the first spring and the second spring, thereby achieving multi-level buffering, improving the buffering capacity, extending the buffering time, and greatly reducing the impact of the collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 3 It is a partial enlarged structural schematic diagram of A of the utility model;

[0020] Figure 4 This is a schematic diagram of the fixed plate seat structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the movable plate of the utility model;

[0022] Figure 6 It is a schematic diagram of the combined structure of the lifting plate, the guide rod and the first pad of the utility model.

[0023] Among them, 1. trolley; 2. winch; 3. wire rope; 4. fixed plate; 5. support plate; 6. movable plate; 7. slide bar; 8. slider; 9. first spring; 10. connecting rod; 11. lifting plate; 12. guide rod; 13. second spring; 14. first connecting seat; 15. second connecting seat; 16. through hole; 17. first slot hole; 18. second slot hole; 19. third slot hole; 20. avoidance hole; 21. first pad; 22. second pad. DETAILED DESCRIPTION

[0024] In order to make the technical means, technical features, utility model objectives and technical effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific illustrations.

[0025] like Figure 1-Figure 6 As shown, a container gantry crane hoist anti-collision device comprises a trolley 1, a winch 2, a fixed plate 4 and a movable plate 6. The winch 2 is installed on the trolley 1, a steel wire rope 3 is wound and installed on the winch 2, and the steel wire rope 3 is divided into a fixed end and a movable end. A support plate 5 is connected to the fixed end of the steel wire rope 3, and the support plate 5 is fixedly connected to the steel wire rope 3, and the relative position with the fixed end of the steel wire rope 3 remains unchanged. The fixed plate 4 is installed on the trolley 1 and is located below the winch 2. The bottom of the fixed plate 4 is connected to two groups of first buffer groups Parts, two groups of first buffer components are symmetrically distributed and are respectively located on both sides of the wire rope 3. A second buffer component is installed on the first buffer component of each group. The movable plate 6 is placed above the support plate 5, and the support plate 5 supports and positions the movable plate 6. The fixed end and the movable end of the wire rope 3 pass through the fixed plate 4 and the movable plate 6 in turn to connect the sling. The movable plate 6 can move relative to the support plate 5 along the wire rope 3 under the action of external force, and the first buffer component and the second buffer component can perform multi-level buffering on the top of the sling.

[0026] like Figure 1-Figure 3 As shown, the first buffer assembly includes a slide bar 7 and two sliders 8. The two sliders 8 are symmetrically mounted on the slide bar 7 and can slide along the slide bar 7. The slider 8 is pivotally connected to the fixed plate 4 through a connecting rod 10. Specifically, a plurality of first connecting seats 14 are symmetrically connected in pairs on the fixed plate 4. A second connecting seat 15 is processed on the upper surface of the slider 8. One end of the connecting rod 10 is hingedly connected to the first connecting seat 14, and the other end of the connecting rod 10 is hingedly connected to the second connecting seat 15. First springs 9 are mounted on both ends of the slide bar 7 and located on the outside of the slider 8. One end of the first spring 9 abuts against the end of the slide bar 7, and the other end of the first spring 9 abuts against the slider 8. The elastic force of the first spring 9 acts on the slider 8, so that the two sliders 8 have a tendency to move closer to each other.

[0027] The second buffer assembly includes a lifting plate 11 and two guide rods 12, the two guide rods 12 are symmetrically connected to the lifting plate 11, the upper ends of the two guide rods 12 penetrate the slide bar 7 upward, and a second spring 13 is sleeved on the guide rod 12 and located between the lifting plate 11 and the slide bar 7, one end of the second spring 13 abuts on the lifting plate 11, and the other end of the second spring 13 abuts on the slide bar 7, and the elastic force of the second spring 13 pushes the lifting plate 11 to generate a movement trend away from the slide bar 7;

[0028] When in use, the elastic force of the second spring 13 is smaller than the elastic force of the first spring 9. When the sling pushes the movable plate 6 to cause a top collision, the second spring 13 is compressed and deformed first, and the second buffer assembly works first to prevent the impact force generated by the top collision from directly acting on the trolley 1.

[0029] A first pad 21 is installed on the lower surface of the lifting plate 11, and a second pad 22 is installed at the middle position of the lower surface of the sliding rod 7 facing the lifting plate 11. The first pad 21 and the second pad 22 are both made of soft materials to avoid hard impact between the lifting plate 11 and the sliding rod 7, and between the movable plate 6 and the lifting plate 11;

[0030] When in use, a limiter can be installed on the slide rod 7 or the slide block 8 can be limited by the guide rod 12, so that when the first spring 9 is in a free state, the connecting rod 10 maintains a certain angle with the slide rod 7 to avoid the connecting rod 10 forming a dead point and causing the slide block 8 to be unable to slide relative to the slide rod 7.

[0031] like Figure 4 As shown, a through hole 16 and a first slot 17 are processed on the movable plate 6, the fixed end of the steel wire rope 3 passes through the through hole 16, and the movable end of the steel wire rope 3 passes through the first slot 17, and the movement of the movable plate 6 will not interfere with the steel wire rope 3.

[0032] like Figure 5 As shown, a second slot 18 and a third slot 19 are processed on the fixed plate 4, the fixed end of the wire rope 3 passes through the second slot 18, and the movable end of the wire rope 3 passes through the third slot 19, so that the winding of the wire rope 3 will not interfere with the fixed plate 4, and a plurality of avoidance holes 20 are symmetrically distributed on the fixed plate 4, and the avoidance holes 20 are adapted to the guide rod 12. When the guide rod 12 moves upward, the upper end of the guide rod 12 can pass through the avoidance hole 20 without causing interference and collision with the fixed plate 4.

[0033] The working principle of the utility model is:

[0034] When in use, the winch 2 drives the sling through the wire rope 3 to lift the objects. When the sling hits the top, the sling collides with the movable plate 6, driving the movable plate 6 to move upward to impact the lifting plate 11. Since the elastic force of the second spring 13 is less than the elastic force of the first spring 9, the second spring 13 is compressed first, and the lifting plate 11 and the guide rod 12 move. When the second spring 13 is fully compressed and the lifting plate 11 contacts the second pad 22, the first spring 9 begins to compress, and the two sliders 8 move away from each other relative to the slide bar 7, and the slide bar 7 moves upward toward the fixed plate 4. By compressing the second spring 13 and the first spring 9 in sequence, a buffer is generated. The buffering prevents the sling from directly hitting the trolley 1, reduces the impact force on the trolley 1, reduces the probability of the sling and the trolley 1 colliding and being damaged, and saves use and maintenance costs.

[0035] The above description is only a preferred embodiment of the utility model, and is not intended to limit the scope of implementation of the utility model. That is, all equivalent changes and modifications made according to the content of the patent application scope of the utility model should belong to the technical scope of the utility model.

Claims

1. A container gantry crane hoisting device anti-collision device, comprising a trolley (1) and a winch (2), wherein the winch (2) is arranged on the trolley (1), and a steel wire rope (3) is wound around the winch (2), characterized in that: The trolley (1) is provided with a fixed plate (4), two groups of first buffer components are symmetrically arranged at the bottom of the fixed plate (4), a second buffer component is arranged on the first buffer component, the fixed end of the steel wire rope (3) is fixedly connected to a support plate (5), and a movable plate (6) is arranged above the support plate (5).

2. The container gantry crane spreader anti-collision device according to claim 1 is characterized in that: The first buffer assembly comprises a slide bar (7) and two sliders (8), the two sliders (8) being symmetrically mounted on the slide bar (7), the sliders (8) being pivotally connected to the fixed plate (4) via a connecting rod (10), and a first spring (9) being mounted on the slide bar (7) and located outside the sliders (8).

3. The container gantry crane spreader anti-collision device according to claim 2 is characterized in that: The second buffer assembly comprises a lifting plate (11), on which two guide rods (12) are symmetrically arranged, the upper ends of the two guide rods (12) passing through the slide bar (7) upwards, and a second spring (13) is sleeved on the guide rod (12) and located between the lifting plate (11) and the slide bar (7).

4. The container gantry crane spreader anti-collision device according to claim 3 is characterized in that: The elastic force of the second spring (13) is smaller than the elastic force of the first spring (9).

5. The container gantry crane spreader anti-collision device according to claim 2 is characterized in that: A first connecting seat (14) is provided on the fixing plate (4), a second connecting seat (15) is provided on the sliding block (8), one end of the connecting rod (10) is hinged to the first connecting seat (14), and the other end of the connecting rod (10) is hinged to the second connecting seat (15).

6. The container gantry crane spreader anti-collision device according to claim 1 is characterized in that: The movable plate (6) is provided with a through hole (16) for the fixed end of the steel wire rope (3) to pass through, and a first slot hole (17) for the movable end of the steel wire rope (3) to pass through.

7. The container gantry crane spreader anti-collision device according to claim 1 is characterized in that: The fixing plate (4) is provided with a second slot hole (18) for the fixed end of the steel wire rope (3) to pass through, and a third slot hole (19) for the movable end of the steel wire rope (3) to pass through.

8. The container gantry crane spreader anti-collision device according to claim 3 is characterized in that: The fixing plate (4) is provided with an avoidance hole (20) adapted to the guide rod (12).

9. The container gantry crane spreader anti-collision device according to claim 3 is characterized in that: A first pad (21) is provided on the lower surface of the lifting plate (11), and a second pad (22) is provided on the lower surface of the sliding rod (7); the first pad (21) and the second pad (22) are both made of soft material.

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