Spring type cushion bed device for a conveyor belt

By designing a spring-type buffer bed device, and utilizing the combination structure of the insert plate and the limiting groove and the connection of the spring, the limitations of existing buffer devices are solved, achieving efficient and stable buffering of the conveyor belt, extending the service life of the equipment and reducing maintenance costs.

CN224336378UActive Publication Date: 2026-06-09YUNNAN DIQING NONFERROUS METAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN DIQING NONFERROUS METAL CO LTD
Filing Date
2025-06-17
Publication Date
2026-06-09

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Abstract

This utility model discloses a spring-type buffer bed device for conveyor belts, relating to the technical field of conveyor belt auxiliary equipment. It includes: a buffer frame with an upper surface sloping for supporting the belt and a lower surface flat; a strip plate fixedly installed at the center of the lower surface of the buffer frame, with an insert plate fixedly installed at its bottom. The bottom of the insert plate is curved and arranged in a "V" shape along its length. In this design, the insert plate is inserted into a limiting groove, with the bottom curved surface of the insert plate parallel to the inner wall of the limiting groove, and a gap is left between the insert plate and the limiting groove. This structural design not only limits the buffer frame, preventing excessive displacement when subjected to impact and ensuring the stability of the device, but also provides space for the compression deformation of the spring, ensuring the normal operation of the buffer function.
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Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for transport belts, specifically a spring-type buffer bed device for transport belts. Background Technology

[0002] In the field of material handling, conveyor belts are widely used for transporting various bulk materials such as ores and coal. When materials fall onto the conveyor belt, they exert a significant impact force. Prolonged impact can easily lead to belt wear, tearing, and even damage to the belt's support structure, affecting the normal operation and service life of the transport system, and increasing maintenance costs and downtime. Existing buffer devices have limitations in terms of buffering effect, structural stability, and belt protection, and cannot fully meet the actual production requirements for efficient and stable buffering of conveyor belts.

[0003] Therefore, those skilled in the art have provided a spring-type buffer bed device for conveyor belts to solve the problems mentioned above. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a spring-type buffer bed device for transport belts.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A spring-type buffer bed device for conveyor belts, comprising:

[0007] The buffer frame has an upper surface that is sloped to support the belt, and a lower surface that is flat.

[0008] A strip plate is fixedly installed at the center of the lower surface of the buffer frame, and an insert plate is fixedly installed at the bottom. The bottom of the insert plate is set as an arc surface, and the bottom of the insert plate is distributed in a "V" shape along the length direction.

[0009] The base frame is located directly below the buffer frame;

[0010] Multiple springs are provided to connect the buffer frame and the base frame;

[0011] A strip block is fixed to the upper surface of the base frame. A limiting groove is opened on the strip block. The bottom of the limiting groove is distributed in a "V" shape along the length direction. The insert plate is inserted into the limiting groove. The bottom arc surface of the insert plate is parallel to the bottom inner wall of the limiting groove, and a gap is left between the insert plate and the limiting groove.

[0012] Preferably, when the bottom arc surface of the insert plate contacts the bottom inner wall of the limiting groove, the height of the contact surface is greater than half the depth of the limiting groove.

[0013] Preferably, when the bottom arc surface of the insert plate contacts the bottom inner wall of the limiting groove, the portion of the limiting groove above the contact surface is an inclined surface, and the inclined surface is inclined to both sides of the limiting groove.

[0014] Preferably, the angles at the turning points of the limiting groove and the insert plate are the same, ranging from 150° to 170°.

[0015] Preferably, the lower surface of the buffer frame and the upper surface of the base frame are both rectangular and aligned, and multiple springs are respectively arranged at the corners of the buffer frame and the base frame.

[0016] In summary, this utility model has the following beneficial technical effects:

[0017] 1. The insert plate is inserted into the limiting groove. The bottom arc surface of the insert plate is parallel to the bottom inner wall of the limiting groove, and there is a gap between the insert plate and the limiting groove. This structural design can not only limit the buffer frame and prevent it from deviating too much when it is impacted, thus ensuring the stability of the device, but also provide space for the compression deformation of the spring, ensuring the normal realization of the buffer function.

[0018] 2. The bottom arc surface of the insert plate and the bottom inner wall of the limiting groove are both divided into two parts from the middle. The two parts are parallel to each other. When a falling object may hit different positions on the upper surface of the buffer frame, at least one part of the two parts can contact the limiting groove during the buffering process, while the other part remains parallel and has a gap. Alternatively, both parts can contact each other. The limiting groove can play a limiting and guiding role for the insert plate, which can ensure the amplitude and effect of the buffering and ensure overall stability. Attached Figure Description

[0019] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional installation structure of the limiting groove and the insert plate of this utility model;

[0022] Figure 3 This is a schematic diagram of the insert structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the limiting groove structure of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Buffer frame; 2. Base frame; 3. Spring; 4. Strip block; 5. Strip plate; 41. Limiting groove; 51. Insert plate. Detailed Implementation

[0025] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0026] A spring-type buffer bed device for conveyor belts, as described in the reference. Figure 1-4 ,include:

[0027] The buffer frame 1 has an upper surface that is sloped to support the belt, making the belt run more smoothly and effectively dispersing the pressure of falling materials on the belt. Its lower surface is flat to provide a stable foundation for the installation of subsequent components.

[0028] The strip plate 5 is fixedly installed at the center of the lower surface of the buffer frame 1, and the bottom is fixedly installed with the insert plate 51. The bottom of the insert plate 51 is set as an arc surface, and the bottom of the insert plate 51 is distributed in a "V" shape along the length direction. This unique shape design helps to better guide and disperse the impact force when the device is impacted, thereby improving the buffering effect.

[0029] The base frame 2, located directly below the buffer frame 1, serves to support the entire device and ensure its stability.

[0030] Multiple springs 3 are provided to connect the buffer frame 1 and the base frame 2. As the main buffer element, the springs 3 absorb energy through their own compression deformation when the material falls and impacts the belt, thereby reducing the impact force on the belt.

[0031] A strip block 4 is fixed to the upper surface of the base frame 2. A limiting groove 41 is formed on the strip block 4, with the bottom of the limiting groove 41 arranged in a "V" shape along its length. An insert plate 51 is inserted into the limiting groove 41, with the bottom arc surface of the insert plate 51 parallel to the bottom inner wall of the limiting groove 41, and a gap is left between the insert plate 51 and the limiting groove 41. This structural design not only limits the buffer frame 1, preventing excessive displacement when subjected to impact and ensuring the stability of the device, but also provides space for the compression deformation of the spring 3, ensuring the normal functioning of the buffer.

[0032] The bottom arc surface of the insert plate 51 and the bottom inner wall of the limiting groove 41 are both divided into two parts from the middle. The two parts are parallel to each other. The falling object may hit different positions on the upper surface of the buffer frame 1. During the buffering process, at least one part of the two parts can contact the limiting groove, while the other part remains parallel and has a gap. Alternatively, both parts can contact each other. The limiting groove 41 can play a limiting and guiding role for the insert plate 51, which can ensure the amplitude and effect of the buffering and ensure overall stability.

[0033] When the bottom arc surface of the insert plate 51 contacts the bottom inner wall of the limiting groove 41, the height of the contact surface is greater than half the depth of the limiting groove 41. This design ensures that there is sufficient contact area between the insert plate 51 and the limiting groove 41 during the buffering process, which can more effectively disperse the impact force, reduce local stress concentration, and improve the structural strength and service life of the device.

[0034] When the bottom arc surface of the insert plate 51 contacts the bottom inner wall of the limiting groove 41, the portion of the limiting groove 41 above the contact surface is an inclined surface, and the inclined surface slopes to both sides of the limiting groove 41. This inclined surface design can guide the insert plate 51 to move smoothly within the limiting groove 41 when the device is subjected to a large impact, preventing the insert plate 51 from jamming or shifting, further improving the buffering stability and reliability of the device, and also has a guiding function.

[0035] The turning angles of the limiting groove 41 and the insert plate 51 are the same, ranging from 150° to 170°. This angle range allows the insert plate 51 to move more smoothly within the limiting groove 41, reducing movement resistance and wear. It also ensures that when the device is subjected to impact, the insert plate 51 can maintain a good fit with the limiting groove 41, fully exerting its limiting and buffering functions.

[0036] The lower surface of the buffer frame 1 and the upper surface of the base frame 2 are both rectangular and aligned, with multiple springs 3 positioned at the corners of the buffer frame 1 and the base frame 2. This layout allows the springs 3 to evenly bear and disperse the impact force from the buffer frame 1, avoiding excessive local stress and improving the service life and cushioning effect of the springs 3. Simultaneously, the aligned rectangular structure makes the center of gravity of the entire device more stable, further enhancing the overall stability of the device.

[0037] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A spring-type buffer bed device for conveyor belts, characterized in that, include: The buffer frame (1) has an upper surface that is set as an inclined plane to support the belt, and a lower surface that is set as a flat plane. A strip plate (5) is fixedly installed at the center of the lower surface of the buffer frame (1), and a plug plate (51) is fixedly installed at the bottom. The bottom of the plug plate (51) is set as an arc surface, and the bottom of the plug plate (51) is distributed in a "V" shape along the length direction. The base frame (2) is located directly below the buffer frame (1); Springs (3), multiple of which are used to connect the buffer frame (1) and the base frame (2); A strip block (4) is fixed on the upper surface of the base frame (2). A limiting groove (41) is opened on the strip block (4). The bottom of the limiting groove (41) is distributed in a "V" shape along the length direction. An insert plate (51) is inserted into the limiting groove (41). The bottom arc surface of the insert plate (51) is parallel to the bottom inner wall of the limiting groove (41), and there is a gap between the insert plate (51) and the limiting groove (41).

2. The spring-type buffer bed device for conveyor belts according to claim 1, characterized in that: When the bottom arc surface of the insert plate (51) contacts the bottom inner wall of the limiting groove (41), the height of the contact surface is greater than half the depth of the limiting groove (41).

3. The spring-type buffer bed device for conveyor belts according to claim 2, characterized in that: When the bottom arc surface of the insert plate (51) contacts the bottom inner wall of the limiting groove (41), the part of the limiting groove (41) above the contact surface is an inclined surface, and the inclined surface is inclined to both sides of the limiting groove (41).

4. The spring-type buffer bed device for conveyor belts according to claim 3, characterized in that: The angles at the turning points of the limiting groove (41) and the insert plate (51) are the same, ranging from 150° to 170°.

5. A spring-type buffer bed device for a conveyor belt according to claim 4, characterized in that: The lower surface of the buffer frame (1) and the upper surface of the base frame (2) are both rectangular and aligned, and multiple springs (3) are respectively set at the corners of the buffer frame (1) and the base frame (2).