Self-adaptive compliance adjusting device for large-size overhead door

By combining roller guide rails with high-strength bolts and electromagnets, the problem of deformation and start-stop impact caused by thermal expansion and contraction of large-size lifting doors is solved, achieving smooth adjustment and buffering of the door leaf and extending the service life of the equipment.

CN223661643UActive Publication Date: 2025-12-12CHINESE PEOPLES LIBERATION ARMY UNIT 63798 +1
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Patent Information

Application Number
CN202423242451.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-12-12
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

Large-sized lifting doors are prone to deformation during thermal expansion and contraction, and the powerful impact force generated during opening and closing can damage the equipment.

Method used

The design employs a roller and guide rail structure, combined with high-strength bolts, rubber pads, and electromagnets, to achieve smooth adjustment of the door leaf and buffer and reduce impact force.

Benefits of technology

It reduces deformation caused by thermal expansion and contraction, lowers the impact force during start-up and shutdown, and extends the service life of the wire rope and motor.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-adaptive compliance adjusting device for a large-size overhead door, which comprises a door leaf module, the door leaf module comprises a plurality of door leaves, rollers are mounted on two sides of each door leaf, guide rails are arranged on two sides of each door leaf, and the rollers are positioned in the guide rails; each flexible module comprises a rubber pad and a high-strength bolt, a plurality of bolt holes are formed in the door leaves, the high-strength bolts are arranged in the bolt holes in a penetrating mode, every two adjacent door leaves are connected through the high-strength bolts, the high-strength bolts are in threaded connection with locknuts, the rubber pads are fixedly connected to the door leaves, the high-strength bolts are provided with opposite-abutting elastic pieces in a penetrating mode, and the opposite-abutting elastic pieces are fixedly connected to the door leaves. The rubber pads and the opposite ejection elastic pieces are located between the two adjacent door leaves; the buffering module comprises an upper electromagnet and a lower electromagnet, the upper electromagnet is fixedly connected to the door leaf, the lower electromagnet is fixedly connected to the supporting plate, and the upper electromagnet and the lower electromagnet are correspondingly arranged. According to the utility model, the influence of thermal expansion and cold contraction on the whole can be reduced, and the impact force at the moment of starting and stopping the whole device can be reduced through the upper electromagnet and the lower electromagnet.
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Description

Technical Field

[0001] This utility model relates to the field of lifting door technology, and in particular to an adaptive compliant adjustment device for large-size lifting doors. Background Technology

[0002] Because the tower needs to provide thermal insulation and protection for rocket hoisting, a special lifting gate is installed on the outside of the tower. It can be raised and lowered as needed. However, the gate is huge, 40 meters long, 8.3 meters wide, and weighs 20 tons. Previously, 20 doors were spliced ​​together into a whole by bolts and welding. Due to temperature, thermal expansion and contraction inevitably caused internal stress concentration, resulting in deformation of the door panels and affecting the use of the gate.

[0003] The gate is pulled by a steel wire rope, which generates a strong impact force when it starts and stops, causing damage to the steel wire rope and other equipment.

[0004] To address this issue, an adaptive compliant adjustment device for large-size lifting doors is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an adaptive and compliant adjustment device for large-size lifting doors, so as to solve the problems existing in the prior art, avoid the door from deforming due to thermal expansion and contraction, and reduce the impact force when the door opens and closes.

[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides an adaptive compliant adjustment device for a large-size lifting door, comprising:

[0007] A door module, comprising a plurality of door panels, wherein rollers are mounted on both sides of the door panels, and guide rails are provided on both sides of the door panels, with the rollers located within the guide rails;

[0008] A flexible module includes a rubber pad and a high-strength bolt. The door leaf has several bolt holes, and a high-strength bolt passes through the bolt holes. Two adjacent door leaves are connected by a high-strength bolt. A lock nut is threaded onto the high-strength bolt. A rubber pad is fixedly connected to the door leaf. A spring clip passes through the high-strength bolt. The rubber pad and the spring clip are both located between two adjacent door leaves.

[0009] A buffer module, comprising an upper electromagnet and a lower electromagnet, wherein the upper electromagnet is fixedly connected to the door leaf and the lower electromagnet is fixedly connected to the support plate, and the upper electromagnet and the lower electromagnet are arranged correspondingly.

[0010] Preferably, two pulley seats are fixedly connected to the door leaf, the two pulley seats are horizontally arranged, and fixed pulleys are installed on the pulley seats.

[0011] Preferably, the top spring includes two disc springs, which are sleeved on the rigid bolt.

[0012] Preferably, the door panel includes a frame and a skin, the skin being fixedly connected to the frame, and adjacent frames being connected by high-strength bolts.

[0013] This utility model discloses the following technical effects: In this device, under the action of rollers and guide rails, the door leaf can move up and down along the guide rails. Adjacent door leaves are connected by high-strength bolts. Rubber pads and top spring sheets act as buffers, preventing the adjacent door leaves from colliding violently when rising and falling. Simultaneously, the rubber pads also act as seals, ensuring a tight fit between the adjacent door leaves. When the upper and lower electromagnets are energized, they are in a repulsive state, preventing the door leaf from hitting the ground when closing and reducing the opening force when opening. This means the steel wire rope pulling the door leaf only requires a force to prevent it from derailing, improving the working conditions of the steel wire rope and extending its service life. This utility model reduces the impact of thermal expansion and contraction on the overall structure and also reduces the impact force during the start and stop of the device through the upper and lower electromagnets. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point a in the middle;

[0017] Figure 3 for Figure 1 Enlarged view of point b in the middle;

[0018] Figure 4 This is a schematic diagram of the skeleton structure of this utility model;

[0019] Figure 5 This is a side sectional view of the skeleton of this utility model.

[0020] Figure 6 This is a schematic diagram of the disc spring structure of this utility model;

[0021] The components include: 1. Door leaf; 2. Roller; 3. Guide rail; 4. Rubber pad; 5. High-strength bolt; 6. Anti-loosening nut; 7. Top spring; 8. Upper electromagnet; 9. Lower electromagnet; 10. Support plate; 11. Pulley seat; 12. Fixed pulley; 13. Frame; 14. Skin. Detailed Implementation

[0022] 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.

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Reference Figure 1-6 This utility model provides an adaptive compliance adjustment device for large-size lifting doors, comprising:

[0025] A door module includes several door panels 1, with rollers 2 installed on both sides of the door panels 1 and guide rails 3 provided on both sides of the door panels 1, with the rollers 2 located inside the guide rails 3;

[0026] The flexible module includes a rubber pad 4 and a high-strength bolt 5. Several bolt holes are opened on the door leaf 1, and a high-strength bolt 5 is inserted into the bolt holes. Two adjacent door leaves 1 are connected by a high-strength bolt 5. A lock nut 6 is threaded on the high-strength bolt 5. A rubber pad 4 is fixedly connected to the door leaf 1. A top spring 7 is inserted on the high-strength bolt 5. Both the rubber pad 4 and the top spring 7 are located between two adjacent door leaves 1.

[0027] The buffer module includes an upper electromagnet 8 and a lower electromagnet 9. The upper electromagnet 8 is fixedly connected to the door leaf 1, and the lower electromagnet 9 is fixedly connected to the ground. The upper electromagnet 8 and the lower electromagnet 9 are set accordingly.

[0028] In this device, under the action of roller 2 and guide rail 3, door leaf 1 can move up and down along guide rail 3. Adjacent door leaves 1 are connected by high-strength bolts 5. Rubber pad 4 and top spring 7 play a buffering role, so that the two adjacent door leaves 1 will not collide violently when rising and falling. At the same time, rubber pad 4 also plays a sealing role, so that the two adjacent door leaves 1 are always tightly fitted. When the upper electromagnet 8 and lower electromagnet 9 are energized, they are in a repulsive state. When the door leaf 1 closes, it can prevent the door leaf 1 from hitting the ground. When the door leaf 1 opens, it can reduce the opening pull of the door leaf 1. So that the steel wire rope pulling the door leaf 1 only needs a force to ensure that it does not derail, thus improving the working conditions of the steel wire rope and extending its service life.

[0029] By combining the top spring sheet 7 and the elastic rubber pad 4, the overall rigidity of the gate composed of door leaves 1 is ensured, while allowing for individual deformation between door leaves 1. At the same time, the force generated by the deformation of a single door leaf 1 is blocked within itself, so that the deformation of a single door leaf 1 will not cause the deformation of the entire gate.

[0030] By utilizing the mutual repulsion force generated by the upper electromagnet 8 and the lower electromagnet 9, the 20-ton gate is forcibly pushed upwards, reducing the impact on the wire rope and the entire equipment at the moment of gate activation. This extends the service life of the wire rope and motor.

[0031] The design is further optimized by fixing two pulley seats 11 on the door leaf 1. The two pulley seats 11 are set horizontally and fixed pulleys 12 are installed on the pulley seats 11.

[0032] Fixed pulley 12 is used to wind steel wire rope.

[0033] The scheme was further optimized by including two disc springs in the top spring 7, which are sleeved on the rigid bolt 5.

[0034] Placing the two disc springs together can reduce the impact force between the door panels 1.

[0035] The design is further optimized so that the door panel 1 includes a frame 13 and a skin 14. The skin 14 is fixedly connected to the frame 13, and two adjacent frames 13 are connected by high-strength bolts 5.

[0036] Both sides of the skeleton 13 have skin 14. Figure 4 A schematic diagram of the internal skeleton 3 after removing one side of the skin 14. Figure 5 The image shows a side sectional view of two adjacent frame 13s. When two adjacent door panels 1 are connected, they are actually connected to the frame 13.

[0037] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An adaptive compliant adjustment device for a large-size lifting door, characterized in that, include: A door module, comprising a plurality of door panels (1), wherein rollers (2) are installed on both sides of the door panels (1), and guide rails (3) are provided on both sides of the door panels (1), wherein the rollers (2) are located within the guide rails (3); A flexible module, comprising a rubber pad (4) and a high-strength bolt (5), wherein a plurality of bolt holes are provided on the door leaf (1), and a high-strength bolt (5) is inserted into the bolt holes. Two adjacent door leaves (1) are connected by a high-strength bolt (5), and a lock nut (6) is threaded onto the high-strength bolt (5). A rubber pad (4) is fixedly connected to the door leaf (1), and a top spring (7) is inserted onto the high-strength bolt (5). The rubber pad (4) and the top spring (7) are both located between two adjacent door leaves (1). The buffer module includes an upper electromagnet (8) and a lower electromagnet (9). The upper electromagnet (8) is fixedly connected to the door leaf (1), and the lower electromagnet (9) is fixedly connected to the support plate (10). The upper electromagnet (8) and the lower electromagnet (9) are arranged correspondingly.

2. The adaptive compliant adjustment device for a large-size lifting door according to claim 1, characterized in that: Two pulley seats (11) are fixedly connected to the door leaf (1). The two pulley seats (11) are horizontally arranged, and fixed pulleys (12) are installed on the pulley seats (11).

3. The adaptive compliant adjustment device for a large-size lifting door according to claim 1, characterized in that: The top spring (7) includes two disc springs, which are sleeved on the high-strength bolt (5).

4. The adaptive compliant adjustment device for a large-size lifting door according to claim 1, characterized in that: The door panel (1) includes a frame (13) and a skin (14). The skin (14) is fixedly connected to the frame (13), and two adjacent frames (13) are connected by the high-strength bolts (5).