Anti-collision and anti-rollover protection device of gantry crane

Abstract

The utility model discloses an anti-collision and anti-rollover protection device for a gantry crane, which relates to the technical field of crane protection and comprises a track main body, a sliding chute is arranged at the top of the track main body, a protection mechanism is mounted at the top of the track main body, and an anti-collision component is mounted on one side of the protection mechanism. The system accurately controls actions through sliding of a rack, stable operation of the gantry crane is ensured, the sliding acting force of the rack enables a connected movable rod to start to rotate, the movable rod is physically limited by a limiting block, the rotation range of the movable rod is limited to be 90 degrees, and an auxiliary spring pushes a locking plate to make contact with a track body to generate friction force; and in the reverse control mode, reverse movement of the rack is unlocked, and it is ensured that the locking plate continues to rotate and does not interfere with the track body.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of crane protection, especially relates to portal crane anti -collision anti -tipping protection device. BACKGROUND

[0002] The portal crane mostly along the ground or the crane track on the building operation, carries out the hoisting and unloading operation. The crane of portal shape is called half portal crane, and one side of the running track is arranged on the ground, and the other side is arranged on the building higher than the ground.

[0003] But in the prior art, when the use environment is the place where the gale weather is easy to occur, the crane is easy to appear the shaking condition, and then the collision with the track at the bottom appears, thereby the damage appears, and the crane appears the toppling condition because of the strong wind, in addition, if the crane is arranged more densely, the collision accident of the toppling impact with the track obstacle and the machine is easy to occur. UTILITY MODEL CONTENT

[0004] The utility model discloses a portal crane anti -collision anti -tipping protection device to solve the problem of the prior art that the strong wind leads to the crane to be easy to shake.

[0005] In order to realize the above-mentioned purpose, the utility model discloses the following technical scheme: portal crane anti -collision anti -tipping protection device, including track main part, the track main part top is set with the sliding slot, the protection mechanism is installed at the track main part top, the protection mechanism one side is installed with the anti -collision subassembly;

[0006] The protection mechanism includes a fixed block, the fixed block side wall is fixedly connected with the mounting block, the mounting block inboard is slidably connected with the movable rod, the movable rod one end is fixedly connected with the locking plate, and the movable rod the other end outer surface is fixedly connected with the bevel gear, the movable rod one end penetrates the fixed block, the fixed block top inboard is slidably connected with the rack, the rack is connected with the bevel gear meshing, and the fixed block side wall top is fixedly connected with the support frame, the support frame and the locking plate are provided with the auxiliary spring between.

[0007] Preferably, the fixed block side wall is provided with a pneumatic cylinder, and one end of the pneumatic cylinder is fixedly connected with the rack.

[0008] Preferably, the fixed block top is fixedly connected with a limiting block, and the movable rod surface is provided with a movable groove.

[0009] Preferably, the limiting block is slidably connected with the movable groove, the fixed block side wall bottom end is fixedly connected with a sliding block, and the sliding block is slidably connected with the track main part.

[0010] Preferably, the anti-collision assembly comprises connecting plates, one side of the two connecting plates is fixedly connected with damping rods, and one end of the two damping rods is fixedly connected with an anti-collision plate.

[0011] Preferably, a reinforcing rod is fixedly connected between the two connecting plates.

[0012] Preferably, damping springs are sleeved on the outer surfaces of the middle portions of the damping rods.

[0013] Compared with the prior art, the anti-collision anti-rollover protection device for the gantry crane has the following advantages and positive effects:

[0014] 1. In strong wind weather, the system accurately controls the action through the sliding of the rack, ensures the stable operation of the gantry crane, the sliding force of the rack makes the connected movable rod start to rotate and is physically limited by the limiting block, the rotation range is limited to ninety degrees, the auxiliary spring is in contact with the track main body by pushing the locking plate, friction force is generated, the wind resistance is enhanced, the equipment is prevented from tilting, the anti-rollover effect is improved, in the reverse control mode, the reverse movement of the rack releases the locking, ensures that the locking plate continues to rotate without interfering with the track main body, this design not only improves the stability of the system, but also guarantees the safety of the equipment in bad weather, avoids potential damage caused by strong wind, and ensures the efficient and safe operation of the crane in daily operation and special environment.

[0015] 2. In the utility model, through the synergies of the anti-collision plate, the damping rod and the damping spring, the collision impact of the gantry crane when approaching the obstacle is effectively reduced, the anti-collision plate as the first contact surface not only buffers the impact force, but also transmits the impact energy to the damping system, the damping rod converts the impact energy into friction force and resistance, and the damping spring further absorbs and stores energy, provides stable damping effect, the addition of the sensor can quickly sense the change of the collision pressure and trigger the automatic stop mechanism, prevents the equipment from being damaged, guarantees the safety of the operator, the overall system reduces the influence of the impact force, vibration and shock wave, prolongs the service life of the equipment and improves the reliability of the system. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model proposes the whole three-dimensional structure schematic diagram of gantry crane anti-collision anti-rollover protection device;

[0017] Figure 2 The utility model proposes the protection mechanism three-dimensional structure schematic diagram of gantry crane anti-collision anti-rollover protection device;

[0018] Figure 3 The utility model proposes the protection mechanism split three-dimensional structure schematic diagram of gantry crane anti-collision anti-rollover protection device;

[0019] Figure 4 The utility model provides a door -saddle type hoist anticollision anti -rollover protection device's anticollision subassembly three -dimensional structure schematic diagram.

[0020] Legend: 1, track main body; 2, sliding slot; 3, anticollision subassembly; 31, anticollision plate; 32, damping rod; 33, damping spring; 34, connecting plate; 35, reinforcing rod; 4, protection mechanism; 41, fixed block; 411, sliding block; 412, support frame; 42, mounting block; 421, limit block; 43, rack; 44, air cylinder; 45, auxiliary spring; 46, locking plate; 47, movable rod; 471, movable slot; 48, bevel gear. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the drawings and examples. It should be noted that the examples and features in the examples of the present application can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, therefore, the utility model is not limited to the specific examples disclosed in the following specification.

[0023] Example one: as shown in the utility model provides a door -saddle type hoist anticollision anti -rollover protection device, including track main body 1, the track main body 1 top is set with sliding slot 2, the track main body 1 top is installed with protection mechanism 4, and protection mechanism 4 one side is installed with anticollision subassembly 3. Figure 1 - Figure 3

[0024] Protection mechanism 4 includes fixed block 41, and the side wall of fixed block 41 is fixedly connected with mounting block 42, and the inner side of mounting block 42 is slidably connected with movable rod 47, one end of movable rod 47 is fixedly connected with locking plate 46, and the outer surface of the other end of movable rod 47 is fixedly connected with bevel gear 48, one end of movable rod 47 penetrates fixed block 41, the inner side of the top of fixed block 41 is slidably connected with rack 43, rack 43 is meshedly connected with bevel gear 48, the top of the side wall of fixed block 41 is fixedly connected with support frame 412, and auxiliary spring 45 is arranged between support frame 412 and locking plate 46.

[0025] The specific settings and effects of the embodiment will be described below, when strong wind weather comes, the sliding of rack 43 inside fixed block 41 can accurately control the action of the system.

[0026] ​The sliding of the rack 43 exerts a certain force on the bevel gear 48, which makes the movable rod 47 connected to the bevel gear 48 begin to rotate. Due to the design of the limiting block 421, the movable rod 47 is physically limited when rotating. The relative movement between the limiting block 421 and the movable slot 471 controls the rotation range of the movable rod 47, so that it can only rotate ninety degrees. The transverse movement space between the limiting block 421 and the movable slot 471 provides a certain limit area for the rotation of the movable rod 47.

[0027] At the same time, the elastic action of the auxiliary spring 45 plays an important role. When the movable rod 47 contacts the limiting block 421, the force of the spring will push the locking plate 46 to move and make the locking plate 46 contact the track body 1. This contact action makes the locking plate 46 effectively generate friction with the track body 1, thereby enhancing the wind resistance of the whole system. The increase of friction not only helps to prevent the gantry crane from tilting in strong wind, but also further enhances the anti-tilting effect, ensuring the stable operation of the equipment in bad weather.

[0028] In the reverse control mode of the system, the movement of the rack 43 is adjusted in the opposite direction, which can make the locking plate 46 move away from the track body 1, thereby releasing the locking effect on the track, so that the locking plate 46 can continue to rotate ninety degrees. In this process, the locking plate 46 does not interfere with the track body 1, avoiding any impact on the normal operation of the equipment during use. Such design ensures the efficient operation of the gantry crane in daily operation and special weather conditions, while improving the overall safety and avoiding unnecessary damage caused by strong wind.

[0029] Embodiment two: as shown in Figure 3 and Figure 4 The side wall of the fixed block 41 is provided with a gas cylinder 44, one end of which is fixedly connected with the rack 43. The top of the fixed block 41 is fixedly connected with a limiting block 421, and the surface of the movable rod 47 is provided with a movable slot 471. The limiting block 421 is slidably connected with the movable slot 471. The bottom of the side wall of the fixed block 41 is fixedly connected with a sliding block 411, which is slidably connected with the track body 1. The anti-collision assembly 3 comprises two connecting plates 34, one side of each connecting plate 34 is fixedly connected with a damping rod 32, and one end of each damping rod 32 is fixedly connected with an anti-collision plate 31. A reinforcing rod 35 is fixedly connected between the two connecting plates 34, and one of the connecting plates 34 is fixedly connected with the side wall of the fixed block 41. The damping spring 33 is sleeved on the outer surface of the middle part of the damping rod 32.

[0030] The effect achieved by the whole embodiment is that when the portal crane approaches the obstacle and is about to collide, the anti-collision plate 31 is the first component to contact the obstacle. The anti-collision plate 31 not only serves as a direct contact surface, but also plays a buffering role. When the anti-collision plate 31 collides with the obstacle, the impact force generated will be quickly transmitted to the subsequent damping system.

[0031] The damping system is composed of a damping rod 32 and a damping spring 33. When the damping rod 32 is subjected to the impact force, it will convert the impact energy into friction and resistance in motion, and the damping spring 33 will further buffer on its surface. As the impact continues, the damping spring 33 will be compressed and store a certain amount of energy, thereby providing stable damping effect. This buffering effect not only reduces the impact force on the portal crane itself, but also effectively avoids damage to the precise components of the equipment caused by the impact force.

[0032] Through this synergistic effect, the anti-collision system not only effectively absorbs and disperses the impact force when the collision occurs, but also reduces the vibration and shock wave caused by the collision, thereby greatly reducing the long-term impact on the structure of the portal crane and prolonging the service life of the equipment. At the same time, the damping force of the damping rod 32 can also ensure smooth and stable response, avoid sudden stop or abnormal vibration, and improve the reliability of the system.

[0033] To further enhance safety, the surface of the anti-collision plate 31 is usually equipped with sensors that can quickly sense pressure changes when a collision occurs, triggering the automatic stop mechanism of the portal crane. This not only immediately cuts off the operation of the equipment to prevent serious damage caused by continuous collision, but also protects the operator from danger.

[0034] The use method and working principle of the device are as follows: during use, the relevant device is installed on the bottom buffer of the portal crane. In strong wind weather, the rack 43 slides inside the fixed block 41, which will exert a force on the bevel gear 48, causing the movable rod 47 to rotate with the bevel gear 48. Due to the presence of the limiting block 421, the movable rod 47 will slide relative to the limiting block 421 using the movable groove 471, and its rotation range is limited to ninety degrees. During rotation, there is a transverse movement space between the limiting block 421 and the movable groove 471, at which time the auxiliary spring 45 will push the locking plate 46 to move, so that it contacts the track main body 1. Through the limitation of the locking block, the anti-wind capacity can be enhanced, and the increase of friction between the locking plate 46 and the track main body 1 also further improves the anti-rollover capacity. Reverse control of the rack 43 can make the locking plate 46 rotate ninety degrees away from the track main body 1, so that there is no interference during use, avoiding the influence of the locking plate 46 on the normal operation of the portal crane.

[0035] When the portal crane is about to contact the obstacle, the anti-collision plate 31 will first contact. After the anti-collision plate 31 is subjected to the impact pressure, the force is transmitted to the damping rod 32, the damping spring 33 on the surface of the damping rod 32 is compressed, and then the impact force is reduced while the anti-collision is performed by relying on the damping force provided by the damping rod 32 and the energy storage characteristics of the damping spring 33, the impact protection effect is achieved, and the safety of the plurality of portal cranes in the use process is ensured. In addition, the sensor is installed on the surface of the anti-collision plate 31, can quickly respond when the impact, make the portal crane stop running.

[0036] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments shall still fall within the protection scope of the present application.

Claims

1. A portal crane anti-collision and anti-overturning protection device, comprising a track main body (1), a sliding groove (2) is formed in the top of the track main body (1), characterized in that: The track body (1) top is provided with a protection mechanism (4), one side of the protection mechanism (4) is provided with an anti-collision assembly (3); The protection mechanism (4) comprises a fixed block (41), a mounting block (42) is fixedly connected to the side wall of the fixed block (41), a movable rod (47) is slidably connected to the inner side of the mounting block (42), one end of the movable rod (47) is fixedly connected with a locking plate (46), the other end of the movable rod (47) is fixedly connected with a bevel gear (48) on the outer surface, the movable rod (47) penetrates through the fixed block (41), a rack (43) is slidably connected to the top inner side of the fixed block (41), the rack (43) is in meshing connection with the bevel gear (48), a support frame (412) is fixedly connected to the top end of the side wall of the fixed block (41), an auxiliary spring (45) is arranged between the support frame (412) and the locking plate (46).

2. The anti-collision and anti-overturning protection device for a portal crane according to claim 1, characterized in that: The fixed block (41) is provided with a gas cylinder (44), one end of the gas cylinder (44) is fixedly connected with the rack (43).

3. The anti-collision and anti-overturning protection device for a portal crane according to claim 1, characterized in that: The fixed block (41) is provided with a gas cylinder (44), one end of the gas cylinder (44) is fixedly connected with the rack (43).

4. The anti-collision and anti-overturning protection device for a portal crane according to claim 3, characterized in that: The fixed block (41) is provided with a gas cylinder (44), one end of the gas cylinder (44) is fixedly connected with the rack (43).

5. The anti-collision and anti-overturning protection device for a portal crane according to claim 1, characterized in that: The fixed block (41) is provided with a gas cylinder (44), one end of the gas cylinder (44) is fixedly connected with the rack (43).

6. The anti-collision and anti-overturning protection device for a portal crane according to claim 5, characterized in that: The fixed block (41) is provided with a gas cylinder (44), one end of the gas cylinder (44) is fixedly connected with the rack (43).

7. The anti-collision and anti-overturning protection device for a portal crane according to claim 5, characterized in that: The damping rod (32) is provided with a damping spring (33) on the outer surface of the middle part.

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