Anti-collision device for port crane
By expanding the protection range through the rotating rod and bevel gear meshing structure, and combining the movable clip and spring to absorb impact force, the problem of poor adaptability and secondary damage of existing devices is solved, realizing flexible adaptation and collision protection for different types of cranes.
Patent Information
- Application Number
- CN202423206027.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing anti-collision devices for port cranes are difficult to adapt to different models of cranes and may cause secondary damage to the cranes or cargo.
The structure employs a rotating rod and bevel gear meshing mechanism. The auxiliary plate is driven by a two-way threaded rod to expand the protection range. The impact force is absorbed by the movable clip and spring, and the rebound is slowed down by the rubber pad. The protective mechanism is designed to adapt to different crane models.
It achieves flexible adaptability to different crane models, reduces collision damage, and improves the practicality and anti-collision performance of the device.
Smart Images
Figure CN223561138U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of hoist protection, especially relates to port hoist anti-collision device. BACKGROUND
[0002] The port hoist is a kind of large-scale mechanical equipment for loading and unloading goods in port wharf, mainly including portal crane, shore container crane and gantry crane various types, in container wharf, port hoist can quickly lift or put down container from cargo ship, dozens of even hundreds of containers can be loaded and unloaded per hour, substantially shorten the ship stay time in port, improve the throughput of port.
[0003] With the continuous development of global trade, the size of ship is larger and larger, and the scale and intensity of port loading and unloading operation also increase accordingly, hoist simultaneously operates in limited wharf space, and collision risk significantly increases, at this time, a port hoist anti-collision device is needed to protect hoist from damage in collision and avoid shutdown due to collision.
[0004] The port hoist anti-collision device on the market mainly includes protective plate, buffer spring, support structure and mounting bracket, in use, the device is installed on the outside of port hoist through mounting bracket, when collision occurs, the protective plate extrudes the buffer spring to buffer the collision, but the device, when in use, since the protective plate is directly connected with the spring, after the spring contracts, it will rebound and drive the protective plate to move, which can easily cause secondary damage to hoist or goods, to solve the above problems, the prior art often uses the installation of damping to reduce the rebound of buffer spring, but the device, in actual use, since the port usually sets multiple types of hoists, the anti-collision device is not convenient for use on different types of hoist equipment due to limited protective area, which reduces the practicability of the device and cannot meet the needs of users. UTILITY MODEL CONTENTS
[0005] In order to make up for the above shortcomings, the utility model provides a port hoist anti-collision device, which aims at improving the problem that the port hoist anti-collision device in the prior art is not convenient for use on different types of hoist.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a port crane anti-collision device, comprising a base plate, a fixed plate on the top of the base plate, a protective plate on the upper side of the fixed plate, an inner cavity inside the protective plate, a rotating rod rotatably connected to the middle of the front side of the protective plate, a driving bevel gear fixedly connected to the rear end of the rotating rod through the protective plate, a bidirectional threaded rod rotatably connected to the middle of the inner side of the inner cavity, a driven bevel gear fixedly connected to the middle of the outer side of the bidirectional threaded rod, the driven bevel gear meshing with the driving bevel gear, grooves on both the left and right sides of the protective plate, auxiliary plates slidably connected inside both grooves, the left and right ends of the bidirectional threaded rod through the protective plate and threadedly connected to the corresponding auxiliary plates, and protective mechanisms on both the left and right sides of the fixed plate, the protective mechanisms being used to conveniently provide protection for the crane.
[0007] As a further description of the above technical solution:
[0008] The protective mechanism includes holes, with multiple holes respectively opened on the left and right ends and front and rear sides of the fixed plate. A fixed rod is fixedly connected to one end of the inner side of each of the multiple holes. A first movable clip is slidably connected to the outer side of each of the multiple fixed rods. A spring is fixedly connected to one side of each of the multiple first movable clips. One end of each of the multiple springs is fixedly connected to one side of the corresponding inner side of the hole. A connecting rod is rotatably connected to the inside of each of the multiple first movable clips. A second movable clip is rotatably connected to the top of each of the multiple connecting rods. The top of each of the multiple second movable clips is fixedly connected to the bottom perimeter of the same protective plate.
[0009] As a further description of the above technical solution:
[0010] A knob is fixedly connected to the front end of the rotating rod, and a reflective strip is provided on the top of the protective plate.
[0011] As a further description of the above technical solution:
[0012] The top four sides of the fixed plate are provided with sliding grooves, and the interior of each of the sliding grooves is slidably connected to the corresponding first movable card.
[0013] As a further description of the above technical solution:
[0014] Each of the inner bottom sides of the multiple sliding grooves is fixedly connected with a first rubber pad, and each of the bottom ends of the multiple first movable cards is fixedly connected with a second rubber pad.
[0015] As a further description of the above technical solution:
[0016] The bottom front, rear, left and right sides of the fixed plate are fixedly connected with fixing plates. The top of each fixing plate is threaded with a screw, and the bottom of each screw passes through the corresponding fixing plate and is threaded to the bottom plate.
[0017] As a further description of the above technical solution:
[0018] One end of each of the multiple fixing rods is threaded to a limit block, and the inner dimensions of the groove match the dimensions of the auxiliary plate.
[0019] As a further description of the above technical solution:
[0020] Mounting plates are fixedly connected to the bottom front and rear ends and left and right sides of the base plate, and mounting holes are opened on the top of each of the mounting plates.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the rotating rod drives the active bevel gear to rotate. Since the driven bevel gear meshes with the active bevel gear, the driven bevel gear will drive the bidirectional threaded rod to rotate. At this time, the auxiliary plates on both sides will move to both sides respectively, which can expand the protection range of the device, so that the device can be adapted to cranes of various models and sizes, improving the practicality of the device and meeting the needs of users.
[0023] 2. In this utility model, when the protective plate is impacted, it will move to one side of the base plate and drive the second movable card to move. At this time, the second movable card can push the first movable card to move through the connecting rod. The movement of the first movable card will squeeze the spring, and the spring will contract and absorb the impact force, which can reduce the damage caused by the collision to the device and improve the anti-collision performance of the device. Attached Figure Description
[0024] Figure 1 This is a perspective view of the anti-collision device for port cranes proposed in this utility model;
[0025] Figure 2 This is a cross-sectional view of the protective plate structure of the anti-collision device for port cranes proposed in this utility model;
[0026] Figure 3 This is a partial structural exploded view of the anti-collision device for port cranes proposed in this utility model;
[0027] Figure 4 This is a partial structural schematic diagram of the anti-collision device for port cranes proposed in this utility model;
[0028] Figure 5 This is a structural exploded view of the protective mechanism of the anti-collision device for port cranes proposed in this utility model.
[0029] Legend:
[0030] 1, bottom plate; 2, protection mechanism; 201, hole; 202, fixed rod; 203, first movable card; 204, spring; 205, connecting rod; 206, second movable card; 3, fixed plate; 4, protection plate; 5, inner cavity; 6, rotating rod; 7, driving bevel gear; 8, bidirectional threaded rod; 9, driven bevel gear; 10, groove; 11, auxiliary plate; 12, knob; 13, reflective strip; 14, sliding groove; 15, first rubber pad; 16, second rubber pad; 17, limiting block; 18, fixed piece; 19, screw; 20, mounting piece; 21, mounting hole. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0032] Referring to Figure 1 , Figure 2 and Figure 3 , one embodiment provided by the utility model: port crane anti-collision device, including bottom plate 1, the top of bottom plate 1 is provided with fixed plate 3, the upper side of fixed plate 3 is provided with protection plate 4, the inside of protection plate 4 is provided with inner cavity 5, the front side middle part of protection plate 4 is rotatably connected with rotating rod 6, the rear end of rotating rod 6 penetrates protection plate 4 and is fixedly connected with driving bevel gear 7, rotating rod 6 rotation will drive driving bevel gear 7 to rotate, the inside middle part of inner cavity 5 is rotatably connected with bidirectional threaded rod 8, the outside middle part of bidirectional threaded rod 8 is fixedly connected with driven bevel gear 9, driven bevel gear 9 is engagedly connected with driving bevel gear 7, when driving bevel gear 7 rotates, driven bevel gear 9 will drive bidirectional threaded rod 8 to rotate, the left and right sides of protection plate 4 are provided with groove 10, the inside of two grooves 10 is slidably connected with auxiliary plate 11, the left and right ends of bidirectional threaded rod 8 penetrate protection plate 4 and are threadedly connected with corresponding auxiliary plate 11, when bidirectional threaded rod 8 rotates, the auxiliary plate 11 on both sides will move to both sides, the left and right sides of fixed plate 3 are provided with protection mechanism 2, protection mechanism 2 is used for conveniently providing protection for crane, the front end of rotating rod 6 is fixedly connected with knob 12, knob 12 can conveniently rotate rotating rod 6 for staff, the top of protection plate 4 is provided with reflective strip 13, reflective strip 13 can warn personnel;
[0033] Specifically, in use, when various different models of cranes need to be used, first rotate the knob 12, the knob 12 will drive the rotating rod 6 to rotate when rotating, with the rotation of the rotating rod 6, the driving bevel gear 7 will also rotate, since the driven bevel gear 9 and the driving bevel gear 7 are engaged with each other, therefore, when the driving bevel gear 7 starts to rotate, the driven bevel gear 9 will also rotate accordingly, and drive the bidirectional threaded rod 8 to rotate, while the bidirectional threaded rod 8 is rotating, it will be limited by the auxiliary plate 11 and the groove 10, the two auxiliary plates 11 will move to the two sides respectively, thereby expanding the protection range of the device, so that the device can flexibly adapt to various different models and sizes of cranes, improve the practicability of the device, and meet the needs of the user.
[0034] With reference to Figure 1 , Figure 4 and Figure 5 , the protection mechanism 2 comprises holes 201, a plurality of holes 201 are respectively arranged on the front and rear sides of the left and right ends of the fixed plate 3, one end of the inner side of each of the plurality of holes 201 is fixedly connected with a fixed rod 202, the outer side of each of the plurality of fixed rods 202 is slidably connected with a first movable clamp 203, the first movable clamp 203 can slide on the outer side of the fixed rod 202, one side of each of the plurality of first movable clamps 203 is fixedly connected with a spring 204, the movement of the first movable clamp 203 will compress the spring 204 to make it shrink, one end of each of the plurality of springs 204 is fixedly connected with the inside of the corresponding hole 201, the inside of each of the plurality of first movable clamps 203 is rotatably connected with a connecting rod 205, the top end of each of the plurality of connecting rods 205 is rotatably connected with a second movable clamp 206, when the first movable clamp 203 moves, the second movable clamp 206 can be pushed to move through the connecting rod 205, the top end of each of the plurality of second movable clamps 206 is fixedly connected with the bottom of the periphery of the same protection plate 4, when the second movable clamp 206 moves, it can push the protection plate 4 to move, the inner side bottom of each of the plurality of sliding grooves 14 is fixedly connected with a first rubber pad 15, the bottom end of each of the plurality of first movable clamps 203 is fixedly connected with a second rubber pad 16, the first rubber pad 15 and the second rubber pad 16 can slow down the rebound of the spring 204;
[0035] Specifically, in the process of using the device for protection work, in the emergency of collision, the object will first hit the protective plate 4, the protective plate 4 will move to the direction of the bottom plate 1 after being hit, the protective plate 4 will move the second movable card 206, the second movable card 206 can further push the first movable card 203 to move forward in the process of moving, the first movable card 203 will extrude the spring 204 when moving, so that the spring 204 shrinks, the shrinkage of the spring 204 can absorb most of the impact force, thereby effectively reducing the damage caused by the collision to the device, when the spring 204 rebounds after absorbing the impact force, the second rubber pad 16 at the bottom of the first movable card 203 and the first rubber pad 15 can provide a larger friction force, the larger friction force helps to slow down the rebound speed of the spring 204, further ensures the stability and safety of the device after the collision, and improves the anti-collision performance of the device.
[0036] With reference to Figure 2 , Figure 3 and Figure 4 , the top of the fixed plate 3 is provided with a plurality of sliding grooves 14 around the top, the inner sides of the plurality of sliding grooves 14 are respectively connected with the corresponding first movable cards 203 in sliding mode, the sliding grooves 14 can limit the sliding of the first movable cards 203 so that they will not shake, one end of each of the plurality of fixed rods 202 is threadedly connected with a limiting block 17, and the limiting block 17 can be unscrewed to disassemble the first movable card 203, the inner side of the groove 10 is matched in size with the size of the auxiliary plate 11, so that the auxiliary plate 11 will not shake;
[0037] Specifically, the sliding grooves 14 limit the first movable cards 203 so that they will not rotate, and the limiting block 17 can be disassembled to replace the first movable card 203, the inner side of the groove 10 is matched in size with the size of the auxiliary plate 11, so that the auxiliary plate 11 will not shake.
[0038] With reference to Figure 1 and Figure 4 , the bottom of the fixed plate 3 is fixedly connected with fixed sheets 18 around the top and bottom, the top of each of the plurality of fixed sheets 18 is threadedly connected with a screw 19, the bottom end of each of the plurality of screws 19 penetrates through the corresponding fixed sheet 18 and is threadedly connected with the bottom plate 1, and the plurality of screws 19 can be disassembled to disassemble the fixed plate 3, the bottom of the bottom plate 1 is fixedly connected with mounting sheets 20 around the top and bottom, the top of each of the plurality of mounting sheets 20 is provided with a mounting hole 21, and the device can be conveniently fixed by using bolts in the mounting hole 21;
[0039] Specifically, the plurality of screws 19 on the fixed sheet 18 can be disassembled to disassemble the fixed plate 3, and the mounting hole 21 can be conveniently used for mounting work.
[0040] Working principle: when using the device, when different models of cranes are needed, at this time, rotate the knob 12, the knob 12 rotates and drives the rotating rod 6 to rotate, the rotating rod 6 rotates and drives the driving bevel gear 7 to rotate, because the driven bevel gear 9 and the driving bevel gear 7 are engaged with each other, the driving bevel gear 7 rotates, the driven bevel gear 9 drives the bidirectional threaded rod 8 to rotate, and because the auxiliary plate 11 is limited by the groove 10, the bidirectional threaded rod 8 rotates, the two auxiliary plates 11 on both sides move to both sides respectively, at this time, the protection range of the device can be expanded, so that the device can be adapted to various different models and sizes of cranes.
[0041] And in the process of using the device for protection work, when a collision occurs, the object first hits the protective plate 4, the protective plate 4 moves to one side of the bottom plate 1 under the impact, the protective plate 4 moves and drives the second movable clamp 206 to move, the second movable clamp 206 moves and pushes the first movable clamp 203 to move through the connecting rod 205, the first movable clamp 203 moves and squeezes the spring 204, the spring 204 shrinks and absorbs the impact force, which can reduce the damage caused by the collision to the device, and protect the crane from the impact, and when the spring 204 rebounds, the second rubber pad 16 at the bottom of the first movable clamp 203 and the first rubber pad 15 can provide greater friction, which can slow down the rebound of the spring 204.
[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.
Claims
1. Anti-collision device for port cranes, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is provided with a fixed plate (3), the upper side of the fixed plate (3) is provided with a protective plate (4), the inside of the protective plate (4) is provided with an inner cavity (5), the front side middle part of the protective plate (4) is rotatably connected with a rotating rod (6), the rear end of the rotating rod (6) penetrates through the protective plate (4) and is fixedly connected with a driving bevel gear (7), the inside middle part of the inner cavity (5) is rotatably connected with a bidirectional threaded rod (8), the outside middle part of the bidirectional threaded rod (8) is fixedly connected with a driven bevel gear (9), the driven bevel gear (9) is meshedly connected with the driving bevel gear (7), the left and right sides of the protective plate (4) are both provided with a groove (10), the inside of the two grooves (10) are both slidably connected with an auxiliary plate (11), the left and right ends of the bidirectional threaded rod (8) both penetrate through the protective plate (4) and are threadedly connected with the corresponding auxiliary plate (11), the left and right sides of the fixed plate (3) are both provided with a protection mechanism (2), and the protection mechanism (2) is used for conveniently protecting the crane.
2. Port crane anti-collision device according to claim 1, characterized in that: The protection mechanism (2) comprises a hole (201), a plurality of hole (201) are respectively arranged on the left and right ends of the fixed plate (3), the inside of the plurality of hole (201) is fixedly connected with a fixed rod (202), the outside of the plurality of fixed rod (202) is slidably connected with a first movable card (203), the side of the plurality of first movable card (203) is fixedly connected with a spring (204), the one end of the plurality of spring (204) is respectively fixedly connected with the inside of the corresponding hole (201), the inside of the plurality of first movable card (203) is rotatably connected with a connecting rod (205), the top end of the plurality of connecting rod (205) is rotatably connected with a second movable card (206), and the top end of the plurality of second movable card (206) is fixedly connected with the bottom of the same protective plate (4).
3. Port crane anti-collision device according to claim 1, characterized in that: The front end of the rotating rod (6) is fixedly connected with a knob (12), and the top of the protective plate (4) is provided with a reflective strip (13).
4. Port crane anti-collision device according to claim 2, characterized in that: The top of the fixed plate (3) is provided with a sliding groove (14), and the inside of the plurality of sliding grooves (14) is slidably connected with the corresponding first movable card (203).
5. Harbour crane anti-collision device according to claim 4, characterized in that: The inside bottom of the plurality of sliding grooves (14) is fixedly connected with a first rubber pad (15), and the bottom end of the plurality of first movable cards (203) is fixedly connected with a second rubber pad (16).
6. A port crane anti-collision device according to claim 1, characterized in that: The bottom of the fixed plate (3) is fixedly connected with a fixed sheet (18), and the top of the plurality of fixed sheets (18) is threadedly connected with a screw (19), and the bottom end of the plurality of screws (19) penetrates through the corresponding fixed sheet (18) and is threadedly connected with the bottom plate (1).
7. A port crane anti-collision device according to claim 2, characterized in that: One end of the plurality of fixed rods (202) is threadedly connected with a limiting block (17), and the inside size of the groove (10) is matched with the size of the auxiliary plate (11).
8. A port crane anti-collision device according to claim 1, characterized in that: The bottom of the bottom plate (1) is fixedly connected with a mounting sheet (20), and the top of the plurality of mounting sheets (20) is provided with a mounting hole (21).