Crown block anti-collision spring buffering device

Abstract

The utility model relates to the technical field of crown block anti-collision, in particular to an anti-collision spring buffer device of a crown block. The anti-collision device comprises a frame body, a cross beam and a crown block, the cross beam is arranged in the middle of the frame body, the crown block is arranged on the cross beam in a sliding mode, and the anti-collision device is characterized in that anti-collision mechanisms are arranged on the two sides of the crown block, and each anti-collision mechanism comprises a spring assembly and an electromagnet; the spring assembly comprises a spring I and a spring II, and the spring II is arranged in the spring I; the electromagnet is arranged in the spring II; induction blocks corresponding to the electromagnets are arranged on the frame body, and the induction blocks are magnets with magnetism; a proximity switch is arranged at the top end of the crown block, used for measuring the distance between the crown block and the frame body and connected with a controller, and the controller controls on-off of the electromagnet. The two-stage spring can be arranged for buffering, the electromagnet is arranged for further reducing the impact force, the anti-collision buffering effect of the device can be improved, and the device is simple in structure and good in applicability.

Description

Technical Field

[0001] This utility model relates to the field of overhead crane anti-collision technology, specifically to an overhead crane anti-collision spring buffer device. Background Technology

[0002] Overhead crane anti-collision mechanisms play a crucial role in industrial production, not only preventing collisions and improving production efficiency but also protecting personnel safety and adhering to national standards and regulations. With continuous technological advancements, overhead crane anti-collision mechanisms will become increasingly intelligent and efficient, providing more reliable safety guarantees for industrial production. Chinese Patent Publication No. CN216785523U discloses an anti-collision structure for a multifunctional electrolytic overhead crane. The structure features two slide rails at the bottom of the machine body, with multiple evenly distributed rollers rotatably mounted on the bottom. These rollers are slidably connected to the two slide rails. Anti-collision components are located on both sides of the machine body, including a fixed frame mounted on one side. By incorporating anti-collision components and limiting blocks, it creates a buffer to reduce damage from impacts. Furthermore, after an impact, a spring resets the push rod to its original position to prevent further impacts. However, this structure is relatively complex, has high production costs, and poor applicability. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a crane anti-collision spring buffer device with simple structure, low cost, and the ability to provide anti-collision buffer for the crane.

[0004] The technical solution of this utility model is as follows:

[0005] A crane anti-collision spring buffer device includes a frame, a crossbeam, and a crane. The crossbeam is located in the middle of the frame, and the crane is slidably mounted on the crossbeam. Anti-collision mechanisms are provided on both sides of the crane. The anti-collision mechanisms include: a spring assembly and an electromagnet; the spring assembly includes spring I and spring II, with spring II located inside spring I; the electromagnet is located inside spring II.

[0006] Preferably, the frame is provided with an induction block corresponding to the electromagnet, and the induction block is a magnet with magnetic properties.

[0007] Preferably, the height of spring I is greater than the height of spring II, the diameter of spring I is greater than the diameter of spring II, and spring I and spring II are concentrically arranged.

[0008] Preferably, the top of the crane is equipped with a proximity switch, which is used to measure the distance between the crane and the frame. The proximity switch is connected to a controller, which controls the switching on and off of the electromagnet.

[0009] Preferably, the magnetism of the electromagnet is opposite to that of the induction block.

[0010] Preferably, the electromagnet and the sensing block are arranged concentrically, and the height of the electromagnet is lower than the height of the spring II.

[0011] Preferably, the electromagnet and the sensing block have the same diameter, with the diameter of the electromagnet being smaller than the diameter of the spring II.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] The device adopts a double-layer spring structure, with spring II nested inside spring I, forming a double buffer effect. This can more effectively absorb and mitigate the impact force generated during crane collisions, reducing the damage to equipment and personnel.

[0014] By installing induction blocks corresponding to electromagnets on the frame and proximity switches and controllers on the crane, real-time monitoring and precise control of the distance between the crane and the frame are achieved. The device has a simple structure, reasonable design, and strong adaptability and reliability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] In the diagram: 1. Frame; 2. Crossbeam; 3. Overhead crane; 4. Spring I; 5. Spring II; 6. Electromagnet; 7. Induction block; 8. Proximity switch. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0019] Example

[0020] like Figure 1As shown, this embodiment provides a crane anti-collision spring buffer device, including a frame 1, a crossbeam 2, and a crane 3. The crossbeam 2 is located in the middle of the frame 1, and the crane 3 is slidably mounted on the crossbeam 2. Anti-collision mechanisms are provided on both sides of the crane 3. The anti-collision mechanisms include: a spring assembly and an electromagnet 6; the spring assembly includes spring I 4 and spring II 5, with spring II 5 located inside spring I 4; and the electromagnet 6 located inside spring II 5.

[0021] Preferably, the frame 1 is provided with an induction block 7 corresponding to the electromagnet 6, and the induction block 7 is a magnet with magnetic properties.

[0022] Preferably, the height of spring I4 is greater than the height of spring II5, the diameter of spring I4 is greater than the diameter of spring II5, and spring I4 and spring II5 are concentrically arranged. This arrangement provides step-by-step collision protection, effectively absorbing and mitigating the impact force generated during a crane collision.

[0023] Preferably, the top of the crane 3 is provided with a proximity switch 8, which is used to measure the distance between the crane 3 and the frame 1. The proximity switch 8 is connected to a controller, which controls the on / off state of the electromagnet 6.

[0024] Preferably, the magnetism of the electromagnet 6 is opposite to that of the induction block 7. By setting the magnetism of the electromagnet 6 and the induction block 7 to be opposite, the impact force during a crane collision can be effectively reduced.

[0025] Preferably, the electromagnet 6 and the sensing block 7 are arranged concentrically, and the height of the electromagnet 6 is lower than the height of the spring II 5.

[0026] Preferably, the electromagnet 6 and the sensing block 7 have the same diameter, and the diameter of the electromagnet 6 is smaller than the diameter of the spring II 5.

[0027] Working principle:

[0028] In operation, when the overhead crane 3 approaches or collides with the frame 1 for some reason, the spring assembly is first triggered for buffering. The concentric design of springs I 4 and II 5, and their differences in diameter and height, provide an effective step-by-step buffering effect, reducing the impact of the collision on the overhead crane 3 and the frame 1. A sensing block 7 corresponding to the electromagnet 6 is installed on the frame 1. When the overhead crane 3 approaches the frame 1, the proximity switch 8 at the top of the overhead crane 3 detects the decrease in distance and triggers the connected controller. The controller then controls the on / off state of the electromagnet 6 based on the measurement result of the proximity switch 8. Since the magnetic properties of the sensing block 7 are opposite, when the electromagnet 6 is energized, it will generate a magnetic field opposite to that of the sensing block 7, thereby generating a repulsive force and preventing the crane 3 from continuing to approach the frame 1. The electromagnet 6 and the sensing block 7 are concentrically set, and the height of the electromagnet 6 is lower than the height of the spring II 5, ensuring that the electromagnet 6 can function within the spring buffer range and achieve precise control of the crane 3's movement. The design that the diameters of the electromagnet 6 and the sensing block 7 are equal, and the diameter of the electromagnet 6 is smaller than the diameter of the spring II 5, ensures that the electromagnet 6 has sufficient room to move inside the spring, while also ensuring the accuracy and reliability of the sensing.

[0029] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A crane anti-collision spring buffer device, comprising a frame (1), a crossbeam (2), and a crane (3), wherein the crossbeam (2) is disposed in the middle of the frame (1), and the crane (3) is slidably disposed on the crossbeam (2), characterized in that, The overhead crane (3) is provided with anti-collision mechanisms on both sides. The anti-collision mechanisms include: spring assembly and electromagnet (6); the spring assembly includes spring I (4) and spring II (5), spring II (5) is located inside spring I (4); electromagnet (6) is located inside spring II (5).

2. The crane anti-collision spring buffer device as described in claim 1, characterized in that, The frame (1) is provided with a sensing block (7) corresponding to the electromagnet (6), and the sensing block (7) is a magnet with magnetic properties.

3. The crane anti-collision spring buffer device as described in claim 1, characterized in that, The height of spring I (4) is greater than the height of spring II (5), the diameter of spring I (4) is greater than the diameter of spring II (5), and spring I (4) and spring II (5) are concentrically arranged.

4. The crane anti-collision spring buffer device as described in claim 1, characterized in that, The top of the crane (3) is equipped with a proximity switch (8), which is used to measure the distance between the crane (3) and the frame (1). The proximity switch (8) is connected to a controller, which controls the on / off state of the electromagnet (6).

5. The crane anti-collision spring buffer device as described in claim 2, characterized in that, The magnetism of the electromagnet (6) is opposite to that of the induction block (7).

6. The crane anti-collision spring buffer device as described in claim 2, characterized in that, The electromagnet (6) and the sensing block (7) are arranged concentrically, and the height of the electromagnet (6) is lower than the height of the spring II (5).

7. The crane anti-collision spring buffer device as described in claim 6, characterized in that, The electromagnet (6) and the sensing block (7) have the same diameter, but the diameter of the electromagnet (6) is smaller than the diameter of the spring II (5).

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