Crane steel structural component with cushioning structure

Abstract

The utility model relates to the technical field of crane steel structural parts, in particular to a crane steel structural part with a cushioning structure, which is characterized in that four mounting grooves are formed in the upper surface of a mounting plate, limiting blocks are arranged on the inner surfaces of the mounting grooves, inserting holes are formed in the side walls of the limiting blocks, through holes are formed in the inner surfaces of the limiting blocks, and inner cavities are formed in the side walls of the mounting grooves; a pull rod is arranged on the inner surface of the inner cavity, a limiting plate is fixedly installed at one end of the pull rod, a pressed spring sleeves the outer surface of the pull rod, a first clamping block is fixedly installed at the end, away from the limiting plate, of the pull rod, and a second clamping block is clamped to the side wall of the first clamping block and fixedly installed on the side surface of the installation plate; the device has the beneficial effects that by replacing the worn spring cushioning device in time, additional vibration and impact caused by failure of the cushioning function are effectively avoided, so that steel structural parts and other key parts of the crane are protected, the stability and safety of the crane in the hoisting process can be ensured, and the safety of operators is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of crane steel structure components, specifically a crane steel structure component with a shock-absorbing structure. Background Technology

[0002] Steel structures are structures made of steel materials and are one of the main types of building structures. They are widely used in large factories, stadiums and super high-rise buildings. During the assembly and construction of steel structures, cranes are needed to transport and install various steel structural components.

[0003] Existing cranes, due to the large weight of steel structural components, generate significant vibration and impact during hoisting and transportation, which can damage the steel structure itself. Most cranes use spring shock absorbers installed at the connection between the crane and the lifting equipment to reduce the vibration generated during the hoisting of steel structural components, thus improving the safety of the hoisting work.

[0004] However, over time, spring shock absorbers will gradually age or become damaged, affecting their damping effect. Damaged spring shock absorbers can cause excessive vibration of the crane during operation, increasing the safety risks to operators. Therefore, it is necessary to replace damaged spring shock absorbers in a timely manner. Utility Model Content

[0005] The purpose of this utility model is to provide a crane steel structure component with a shock-absorbing structure to solve the problem mentioned in the background art that spring shock absorbers will gradually age or be damaged during long-term use, affecting the shock-absorbing effect. Damaged spring shock absorbers will cause excessive vibration of the crane during operation, increasing the safety risks to operators. Therefore, it is necessary to replace the damaged spring shock absorbers in a timely manner.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a crane steel structure component with a shock-absorbing structure, comprising: a crane body and a main beam, a shock-absorbing mechanism on the lower surface of the main beam, a limiting mechanism on the inner surface of the shock-absorbing mechanism, the limiting mechanism comprising: a movable plate and a mounting plate, four symmetrically arranged mounting slots on the upper surface of the mounting plate, a limiting block on the inner surface of the mounting slot, an insertion hole on the side wall of the limiting block, and a through hole on the inner surface of the limiting block;

[0007] The mounting slot has an inner cavity on its side wall. A pull rod is provided on the inner surface of the inner cavity. A limit plate is fixedly installed at one end of the pull rod. A compression spring is sleeved on the outer surface of the pull rod. A first locking block is fixedly installed at the end of the pull rod away from the limit plate. A second locking block is engaged with the side wall of the first locking block. The second locking block is fixedly installed on the side surface of the mounting plate.

[0008] Preferably, the damping mechanism includes: a guide rod and a damping spring, the damping spring being sleeved on the outer surface of the guide rod, a limiting block being sleeved on the outer surface of the guide rod through a through hole, and the limiting block being installed on the inner surface of the mounting groove.

[0009] Preferably, the side walls of the movable plate and the mounting plate are provided with U-shaped grooves, and the shock-absorbing mechanism is slidably installed with the movable plate and the mounting plate through the U-shaped grooves. The shock-absorbing mechanism is installed and limited by a limiting mechanism.

[0010] Preferably, the pull rod is elastically connected to the socket via a compression spring, and the limiting plate is slidably connected to the inner surface of the inner cavity.

[0011] Preferably, the lower surface of the movable plate is provided with a spring-adjustable preload mechanism, which includes a threaded hole and a screw. The threaded hole is opened on the inner surface of the movable plate, the screw is threadedly connected to the threaded hole, a fastener is threadedly connected to the connection between the outer surface of the bottom end of the screw and the movable plate, and a rotating component is fixedly installed at the bottom end of the screw.

[0012] Preferably, the contact surfaces of the first card block and the second card block are both inclined surfaces that fit together.

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

[0014] This utility model proposes a crane steel structure component with a shock-absorbing structure;

[0015] By setting a limiting mechanism, when replacing an aging or worn spring damper, the pull rod is pulled outward axially, causing the limiting plate to compress the spring sleeved on the pull rod on the inner surface of the inner cavity. During the pulling process, the first locking block rotates 180 degrees. Since the contact surface between the first and second locking blocks is set at an angle, when the pull rod is released, the rebound of the compressed spring causes the rotated first locking block to be limited by the second locking block. This causes the end of the pull rod away from the first locking block to disengage from the insertion hole in the limiting block. Subsequently, the limiting block in the mounting slot can be disengaged from the guide rod through the through hole. The spring damper loses the limitation of the limiting mechanism. The aging and worn spring damper can be easily replaced through the U-shaped groove. By replacing the worn spring damper in a timely manner, additional vibration and impact caused by the failure of the damping function can be effectively avoided, thereby protecting the steel structure components and other critical parts of the crane, extending the service life of the crane, and ensuring the stability and safety of the crane during the lifting process, thus ensuring the safety of the operators. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the shock absorption mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the limiting mechanism structure of this utility model;

[0019] Figure 4 For the present utility model Figure 3 Enlarged view of a portion of point A in the middle;

[0020] Figure 5 This is a schematic diagram of the connection structure between the limiting block and the guide rod of this utility model;

[0021] Figure 6 This is a schematic diagram of the first card block rotating 180 degrees according to this utility model;

[0022] Figure 7 This is a schematic diagram of the adjustable preload mechanism for the shock-absorbing spring of this utility model.

[0023] In the diagram: 1. Crane body; 2. Shock absorption mechanism; 201. Movable plate; 202. Mounting plate; 203. U-shaped groove; 204. Mounting groove; 205. Limiting block; 206. Insertion hole; 207. Guide rod; 208. Shock-absorbing spring; 3. Main beam; 4. Threaded hole; 5. Screw; 6. Fastener; 7. Rotating component; 8. Inner cavity; 9. Tie rod; 10. Compression spring; 11. Limiting plate; 12. First locking block; 13. Second locking block; 14. Through hole. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 7 This utility model provides a technical solution: a crane steel structure component with a shock-absorbing structure;

[0026] Example 1:

[0027] To facilitate the replacement of aged or worn spring dampers, a limiting mechanism is provided on the inner surface of the damping mechanism 2. The limiting mechanism includes a movable plate 201 and a mounting plate 202. The upper surface of the mounting plate 202 has four symmetrically arranged mounting slots 204. The inner surface of each mounting slot 204 has a limiting block 205. The side wall of the limiting block 205 has an insertion hole 206, and the inner surface of the limiting block 205 has a through hole 14. The side wall of the mounting slot 204 has an inner cavity 8, and the inner surface of the inner cavity 8 has a tension... Rod 9, with a limiting plate 11 fixedly installed at one end, a compression spring 10 sleeved on the outer surface of the rod 9, a first locking block 12 fixedly installed at the end of the rod 9 away from the limiting plate 11, a second locking block 13 engaging with the side wall of the first locking block 12, the second locking block 13 fixedly installed on the side surface of the mounting plate 202, a limiting block 205 sleeved on the outer surface of the guide rod 207 through a through hole 14, the limiting block 205 installed on the inner surface of the mounting groove 204, and a U-shaped groove 2 formed on the side wall of the movable plate 201 and the mounting plate 202. 03. The shock-absorbing mechanism 2 is slidably installed with the movable plate 201 and the mounting plate 202 through the U-shaped groove 203. The shock-absorbing mechanism 2 is installed and limited by the limiting mechanism. The pull rod 9 is connected to the insertion hole 206 through the elastic connection of the compression spring 10. The limiting plate 11 is slidably connected on the inner surface of the inner cavity 8. By pulling the pull rod 9 axially outward, the limiting plate 11 compresses the compression spring 10 sleeved on the pull rod 9 on the inner surface of the inner cavity 8. Then, during the pulling process, the first locking block 12 is rotated 180 degrees. The contact surface between the pull rod 9 and the second locking block 13 is set at an angle. When the pull rod 9 is released, the rebound of the compression spring 10 causes the rotated first locking block 12 to be limited by the second locking block 13, thereby causing the end of the pull rod 9 away from the first locking block 12 to disengage from the insertion hole 206 in the limiting block 205. Then the limiting block 205 in the mounting groove 204 can be disengaged from the guide rod 207 through the through hole 14. The spring damper loses the limitation of the limiting mechanism, and the aged and worn spring damper can be easily replaced through the U-shaped groove 203.

[0028] Working principle: In actual use, to facilitate the replacement of aged or worn spring dampers, the pull rod 9 is pulled outward axially, causing the limiting plate 11 to compress the compression spring 10 fitted on the pull rod 9 on the inner surface of the inner cavity 8. During this pulling process, the first locking block 12 rotates 180 degrees. Since the contact surface between the first locking block 12 and the second locking block 13 is inclined, releasing the pull rod 9 allows the compression spring 10 to rebound, causing the rotated first locking block 12 to be limited by the second locking block 13. This causes the end of the pull rod 9 away from the first locking block 12 to disengage from the limiting plate. The insertion hole 206 in the positioning block 205 allows the limiting block 205 in the mounting groove 204 to be disengaged from the guide rod 207 through the through hole 14. The spring damper loses the limiting mechanism's limitation, and the aged and worn spring damper can be easily replaced through the U-shaped groove 203. By replacing the worn spring damper in a timely manner, additional vibration and impact caused by damping failure can be effectively avoided, thereby protecting the crane's steel structure and other critical parts, extending the crane's service life, and ensuring the stability and safety of the crane during the lifting process, as well as protecting the safety of the operators.

[0029] 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 crane steel structural component with a shock-absorbing structure, characterized in that: include: The crane body (1) and the main beam (3) are provided with a shock-absorbing mechanism (2) on the lower surface of the main beam (3). The inner surface of the shock-absorbing mechanism (2) is provided with a limiting mechanism. The limiting mechanism includes a movable plate (201) and a mounting plate (202). The upper surface of the mounting plate (202) is provided with four symmetrically arranged mounting slots (204). The inner surface of the mounting slots (204) is provided with a limiting block (205). The side wall of the limiting block (205) is provided with an insertion hole (206). The inner surface of the limiting block (205) is provided with a through hole (14). The mounting groove (204) has an inner cavity (8) on its side wall. A pull rod (9) is provided on the inner surface of the inner cavity (8). A limit plate (11) is fixedly installed at one end of the pull rod (9). A compression spring (10) is sleeved on the outer surface of the pull rod (9). A first locking block (12) is fixedly installed at the end of the pull rod (9) away from the limit plate (11). A second locking block (13) is engaged with the side wall of the first locking block (12). The second locking block (13) is fixedly installed on the side surface of the mounting plate (202).

2. A crane steel structure component with a shock-absorbing structure according to claim 1, characterized in that: The damping mechanism (2) includes: a guide rod (207) and a damping spring (208). The damping spring (208) is sleeved on the outer surface of the guide rod (207). The limiting block (205) is sleeved on the outer surface of the guide rod (207) through the through hole (14). The limiting block (205) is installed on the inner surface of the mounting groove (204).

3. A crane steel structure component with a shock-absorbing structure according to claim 1, characterized in that: The sidewalls of the movable plate (201) and the mounting plate (202) are provided with U-shaped grooves (203). The damping mechanism (2) is slidably installed with the movable plate (201) and the mounting plate (202) through the U-shaped grooves (203). The damping mechanism (2) is installed and limited by a limiting mechanism.

4. A crane steel structure component with a shock-absorbing structure according to claim 1, characterized in that: The pull rod (9) is connected to the socket (206) through the elastic connection of the compression spring (10), and the limiting plate (11) is slidably connected to the inner surface of the inner cavity (8).

5. A crane steel structure component with a shock-absorbing structure according to claim 1, characterized in that: The lower surface of the movable plate (201) is provided with a spring adjustable preload mechanism, which includes a threaded hole (4) and a screw (5). The threaded hole (4) is opened on the inner surface of the movable plate (201). The screw (5) is threadedly connected to the threaded hole (4). A fastener (6) is threadedly connected to the connection between the bottom outer surface of the screw (5) and the movable plate (201). A rotating part (7) is fixedly installed at the bottom end of the screw (5).

6. A crane steel structure component with a shock-absorbing structure according to claim 1, characterized in that: The contact surfaces of the first card block (12) and the second card block (13) are both set as inclined surfaces that fit together.

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