A new type of anti-collision beam for electric front-end cranes

Abstract

This utility model discloses a novel anti-collision beam for an electric front-mounted crane, comprising a front-mounted crane body. Mounting grooves are fixedly installed at the front and rear ends of the front-mounted crane body. Telescopic blocks are movably connected to the inner walls of the mounting grooves. Support springs are fixedly installed inside the telescopic blocks. A hydraulic buffer cylinder is fixedly installed through the inner walls of the mounting grooves. A buffer piston is movably connected to the inner walls of the hydraulic buffer cylinder. A support rod is fixedly installed at the front end of the buffer piston. A push-button switch is fixedly installed inside the mounting grooves. Audible and visual alarms are fixedly installed on both sides of the front-mounted crane body. Positioning grooves are fixedly installed on both sides of the front end of the telescopic blocks. Extension blocks are movably connected to the inner walls of the positioning grooves. Arc-shaped energy-absorbing beams are fixedly installed at the front ends of the extension blocks. A pin hole is opened through the center of the positioning groove. This utility model effectively absorbs and dissipates collision energy, reducing damage to the front-mounted crane body while facilitating extreme audible and visual alarms.

Description

Technical Field

[0001] This utility model relates to the technical field of electric front-end cranes, specifically a novel anti-collision beam for electric front-end cranes. Background Technology

[0002] Electric reach stackers, as key equipment in modern logistics and cargo handling, are widely used in ports, railway freight yards, logistics parks, and other locations. In these operating environments, electric reach stackers face extremely complex and variable conditions. Port areas typically have large numbers of containers stacked tightly together at considerable height. Reach stackers must navigate narrow passageways, frequently performing turning, lifting, and lowering operations, often in close proximity to surrounding containers. In railway freight yards, in addition to containers, there may be various transport vehicles, track facilities, and other obstacles. During loading and unloading, reach stackers are susceptible to collisions with these objects if not handled carefully. In logistics parks, the diverse and irregularly arranged goods, along with frequent movement of personnel and other equipment, further increase the risk of collisions for reach stackers.

[0003] However, in practical applications, most electric reach stackers are equipped with relatively simple anti-collision beams, often made of rigid materials such as ordinary steel. While these rigid anti-collision beams can block obstacles to some extent during a collision, they lack an effective buffering mechanism and cannot absorb or dissipate the enormous energy generated by the impact. When the reach stack collides with an obstacle at a certain speed, the collision energy is directly transferred to the reach stack's body structure, causing deformation of the body, damage to parts, and in severe cases, even overturning of the reach stack, resulting in a serious safety accident. Utility Model Content

[0004] The purpose of this invention is to provide a novel anti-collision beam for electric reach stackers, addressing the problem that most anti-collision beams used in the background art are relatively simple in structure and often made of rigid materials such as ordinary steel. While such rigid anti-collision beams can block obstacles to a certain extent when impacted, they lack an effective buffering mechanism and cannot absorb and dissipate the enormous energy generated by the collision. When the reach stack collides with an obstacle at a certain speed, the collision energy is directly transferred to the reach stack's vehicle structure, causing vehicle deformation, component damage, and in severe cases, even leading to the reach stack overturning and causing serious safety accidents.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a front-mounted crane body, with mounting grooves fixedly installed at its front and rear ends. A telescopic block is movably connected to the inner wall of the mounting groove, and a support spring is fixedly installed inside the telescopic block. A hydraulic buffer cylinder is fixedly installed through the inner side of the mounting groove, and a buffer piston is movably connected to the inner wall of the hydraulic buffer cylinder. A support rod is fixedly installed at the front end of the buffer piston. A push-button switch is fixedly installed inside the mounting groove, and audible and visual alarms are fixedly installed on both sides of the front-mounted crane body.

[0006] The telescopic block has positioning grooves fixedly installed on both sides of its front end. An extension block is movably connected to the inner wall of the positioning groove. An arc-shaped energy-absorbing beam is fixedly installed at the front end of the extension block. A pin hole is opened through the middle of the positioning groove. A pin is movably connected to the inner wall of the pin hole. A pull rod is fixedly installed at the outer end of the pin. A connecting spring is fixedly installed on the inner side of the pull rod.

[0007] Preferably, four electric telescopic rods are fixedly installed through the four corners of the front-mounted crane body, and the electric telescopic rods are symmetrically distributed at the four corners of the front-mounted crane body. The lower telescopic part of the electric telescopic rod is fixedly installed with support feet for stabilizing the front-mounted crane body.

[0008] Preferably, there are two mounting slots, which are symmetrically distributed at the front and rear ends of the front-mounted main body. A limiting boss is provided at the outer end of the telescopic block, and a limiting groove is provided on the inner wall of the mounting slot. The outer end of the limiting boss is movably connected to the inner wall of the limiting groove.

[0009] Preferably, the end of the support spring away from the telescopic block is fixedly installed inside the mounting groove, the hydraulic buffer cylinder is filled with hydraulic oil, and the front end of the support rod is fixedly installed inside the telescopic block.

[0010] Preferably, the push-button switch and the inner side of the telescopic block are on the same horizontal line, and the power switch of the audible and visual alarm is electrically connected to the push-button switch.

[0011] Preferably, the arc-shaped energy-absorbing beam is made of honeycomb aluminum, and the pin hole extends inward through the extension block.

[0012] Preferably, the inner side of the connecting spring is fixedly installed on the outer end of the positioning groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes an arc-shaped energy-absorbing beam that deforms under stress to absorb a large amount of collision energy, reducing the impact of collisions on the main body structure of the front-mounted crane. Simultaneously, when the arc-shaped energy-absorbing beam deforms under stress, the extension block, in conjunction with the positioning groove, pushes the telescopic block inward. As the telescopic block is pushed inward, it causes a buffer piston to move within a hydraulic buffer cylinder, compressing the hydraulic oil. The hydraulic oil generates damping force during its flow, absorbing and dissipating collision energy. Meanwhile, the compressed support spring provides auxiliary buffering and reset functions, allowing the arc-shaped energy-absorbing beam to quickly return to its initial state after a collision. Furthermore, when the telescopic block is pushed inward, it activates an audible and visual alarm for extreme conditions, thus effectively absorbing and dissipating collision energy, reducing damage to the main body of the front-mounted crane, and facilitating extreme conditions with audible and visual alarms.

[0015] This invention also allows for easy disassembly of the arc-shaped energy-absorbing beam when it needs to be disassembled and replaced after a collision. By pulling the pull rod outward, the pin moves outward, releasing the limiting position on the extension block. Once the limiting position on the extension block is released, the arc-shaped energy-absorbing beam can be disassembled by pulling it outward, thus facilitating the disassembly of the arc-shaped energy-absorbing beam. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a novel anti-collision beam for an electric front-mounted crane according to this utility model;

[0017] Figure 2 This is a partial structural diagram of a novel anti-collision beam for an electric front-mounted crane according to this utility model;

[0018] Figure 3 This is a partial cross-sectional view of a novel anti-collision beam for an electric front-mounted crane according to this utility model.

[0019] In the diagram: 1. Front-mounted crane body; 2. Electric telescopic rod; 3. Support leg; 4. Telescopic block; 5. Support spring; 6. Buffer piston; 7. Support rod; 8. Push switch; 9. Audible and visual alarm; 10. Positioning slot; 11. Extension block; 12. Arc-shaped energy-absorbing beam; 13. Pin hole; 14. Pin column; 15. Tie rod; 16. Connecting spring; 17. Mounting slot; 18. Hydraulic buffer cylinder. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This utility model provides a new anti-collision beam technical solution for an electric front-end crane: it includes a front-end crane body 1, and electric telescopic rods 2 are fixedly installed through the four corners of the front-end crane body 1. There are four electric telescopic rods 2, which are symmetrically distributed at the four corners of the front-end crane body 1. The lower telescopic part of the electric telescopic rod 2 is fixedly installed with support feet 3 for stabilizing the front-end crane body 1.

[0022] The front-mounted crane body 1 has two mounting slots 17 fixedly installed at its front and rear ends, symmetrically distributed at the front and rear ends of the front-mounted crane body 1. A telescopic block 4 is movably connected to the inner wall of each mounting slot 17. A limiting boss is formed at the outer end of the telescopic block 4, and a limiting groove is formed on the inner wall of the mounting slot 17. The outer end of the limiting boss is movably connected to the inner wall of the limiting groove, allowing the telescopic block 4 to be further extended and limited by the limiting boss and the limiting groove. A support spring 5 is fixedly installed inside the telescopic block 4, with the end of the support spring 5 furthest from the telescopic block 4 fixedly installed in the mounting slot 17, allowing the support spring 5 to be further extended and limited by the telescopic block 4. Spring 5 provides elastic support for telescopic block 4. A hydraulic buffer cylinder 18 is fixedly installed through the inner side of the mounting groove 17 and is filled with hydraulic oil. A buffer piston 6 is movably connected to the inner wall of the hydraulic buffer cylinder 18. A support rod 7 is fixedly installed at the front end of the buffer piston 6 and is fixedly installed inside the telescopic block 4. A push switch 8 is fixedly installed inside the mounting groove 17 and is on the same horizontal line as the inner side of the telescopic block 4. Audible and visual alarms 9 are fixedly installed on both sides of the front lifting body 1 and are electrically connected to the push switch 8 via the power switch guide of the audible and visual alarm 9.

[0023] Positioning grooves 10 are fixedly installed on both sides of the front end of the telescopic block 4. An extension block 11 is movably connected to the inner wall of the positioning groove 10. An arc-shaped energy-absorbing beam 12 is fixedly installed at the front end of the extension block 11. The arc-shaped energy-absorbing beam 12 is made of honeycomb aluminum, which is lightweight, high-strength, and has good energy absorption characteristics. A pin hole 13 is opened through the middle of the positioning groove 10. The pin hole 13 passes through the extension block 11. A pin post 14 is movably connected to the inner wall of the pin hole 13, so that the extension block 11 is limited by the pin post 14 cooperating with the pin hole 13. A pull rod 15 is fixedly installed at the outer end of the pin post 14. A connecting spring 16 is fixedly installed on the inner side of the pull rod 15. The inner side of the connecting spring 16 is fixedly installed on the outer end of the positioning groove 10, so that the pull rod 15 is elastically connected by the connecting spring 16.

[0024] Working principle: In use, when the front-end crane body 1 collides during operation, the arc-shaped energy-absorbing beam 12 deforms under stress, absorbing a large amount of collision energy and reducing the impact of the collision on the body structure of the front-end crane body 1. At the same time, when the arc-shaped energy-absorbing beam 12 deforms under stress, the extension block 11, in conjunction with the positioning groove 10, pushes the telescopic block 4 inward. When the telescopic block 4 is pushed inward, it compresses the support spring 5 and simultaneously pushes the support rod 7 to move linearly inward. When the support rod 7 moves linearly inward, it drives the buffer piston 6. The hydraulic buffer cylinder 18 moves and compresses the hydraulic oil. The hydraulic oil generates damping force during the flow, absorbing and consuming the collision energy. At the same time, the compressed support spring 5 plays an auxiliary role in buffering and resetting, so that the arc-shaped energy-absorbing beam 12 can quickly return to its initial state after the collision. Meanwhile, when the telescopic block 4 is pushed inward, it will press the push switch 8. When the push switch 8 is pressed, the audible and visual alarm 9 will be activated to trigger the ultimate audible and visual alarm, thereby effectively absorbing and consuming the collision energy, reducing the damage to the front crane body 1, and facilitating the ultimate audible and visual alarm.

[0025] Meanwhile, when the arc-shaped energy-absorbing beam 12 needs to be disassembled and replaced after a collision, the pull rod 15 is pulled outward. When the pull rod 15 is pulled outward, it will drive the pin 14 to move outward. When the pin 14 moves outward, it will release the limit on the extension block 11. When the limit on the extension block 11 is released, the arc-shaped energy-absorbing beam 12 can be disassembled by pulling it outward, thus facilitating the disassembly of the arc-shaped energy-absorbing beam 12.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new type of anti-collision beam for electric reach stacker, characterized in that: The system includes a front-mounted crane body (1), with mounting grooves (17) fixedly installed at the front and rear ends of the front-mounted crane body (1). A telescopic block (4) is movably connected to the inner wall of the mounting groove (17). A support spring (5) is fixedly installed inside the telescopic block (4). A hydraulic buffer cylinder (18) is fixedly installed through the inner side of the mounting groove (17). A buffer piston (6) is movably connected to the inner wall of the hydraulic buffer cylinder (18). A support rod (7) is fixedly installed at the front end of the buffer piston (6). A push switch (8) is fixedly installed inside the mounting groove (17). A sound and light alarm (9) is fixedly installed on both sides of the front-mounted crane body (1). The telescopic block (4) has positioning grooves (10) fixedly installed on both sides of its front end. An extension block (11) is movably connected to the inner wall of the positioning groove (10). An arc-shaped energy-absorbing beam (12) is fixedly installed at the front end of the extension block (11). A pin hole (13) is opened through the middle of the positioning groove (10). A pin column (14) is movably connected to the inner wall of the pin hole (13). A pull rod (15) is fixedly installed at the outer end of the pin column (14). A connecting spring (16) is fixedly installed on the inner side of the pull rod (15).

2. The new type of anti-collision beam of the electric reach stacker according to claim 1, characterized in that: The front-mounted crane body (1) has four electric telescopic rods (2) fixedly installed through its four corners. The electric telescopic rods (2) are symmetrically distributed at the four corners of the front-mounted crane body (1). The lower telescopic part of the electric telescopic rod (2) is fixedly installed with a support foot (3) for stabilizing the front-mounted crane body (1).

3. The new type of anti-collision beam of the electric reach stacker according to claim 2, characterized in that: There are two mounting slots (17), which are symmetrically distributed at the front and rear ends of the front lifting body (1). The outer end of the telescopic block (4) is provided with a limiting boss, and the inner wall of the mounting slot (17) is provided with a limiting groove. The outer end of the limiting boss is attached to the inner wall of the limiting groove.

4. The novel anti-collision beam for an electric front-end crane according to claim 3, characterized in that: The support spring (5) is fixedly installed on the side away from the telescopic block (4) inside the mounting groove (17), the hydraulic buffer cylinder (18) is filled with hydraulic oil, and the front end of the support rod (7) is fixedly installed inside the telescopic block (4).

5. The new type of anti-collision beam of the electric reach stacker according to claim 4, characterized in that: The inner sides of the push switch (8) and the telescopic block (4) are on the same horizontal line, and the power switch of the sound and light alarm (9) is electrically connected to the push switch (8).

6. The new type of anti-collision beam of the electric reach stacker according to claim 5, characterized in that: The arc-shaped energy-absorbing beam (12) is made of honeycomb aluminum, and the pin hole (13) passes inward through the extension block (11).

7. The new type of anti-collision beam of the electric reach stacker according to claim 6, characterized in that: The inner side of the connecting spring (16) is fixedly installed on the outer end of the positioning groove (10).

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