High-speed rail wheel noise reduction block

Abstract

The utility model discloses a high-speed rail wheel noise reduction block, which comprises a noise reduction assembly, the noise reduction assembly comprises a noise reduction block, a noise reduction sheet and a rivet, the noise reduction sheet is arranged outside the noise reduction block, the upper end part and the lower end part of the noise reduction block are provided with second semicircular mounting holes, and the upper end part and the lower end part of the noise reduction sheet are provided with first semicircular mounting holes; and a cavity is formed in the noise reduction block. The device has the characteristics of being high in practicability and good in noise reduction effect.

Description

Technical Field

[0001] The utility model belongs to the technical direction of high-speed railway wheel noise reduction blocks, and specifically relates to a high-speed railway wheel noise reduction block. Background Art

[0002] As the speed of rail transit continues to increase, the strong vibration and structural noise generated by the wheels propagate in the air. While rail transit provides convenient travel, it also brings noise pollution. At present, noise can be reduced by installing noise reduction structures or products on wheels, but domestic high-speed rail wheel noise reduction basically uses imported noise reduction blocks, which are difficult to operate and heavy. This phenomenon has become a problem that needs to be solved urgently by people in this field. Therefore, a high-speed rail wheel noise reduction block is designed, which is easy to install, lightweight in structure, and can improve noise reduction effect and safety performance. Utility Model Content

[0003] The purpose of the utility model is to provide a high-speed railway wheel noise reduction block for the existing device to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a high-speed railway wheel noise reduction block, comprising a noise reduction component, the noise reduction component comprising a noise reduction block, a noise reduction sheet and a rivet, the noise reduction sheet is arranged outside the noise reduction block, the upper and lower ends of the noise reduction block are provided with second semicircular mounting holes, and the upper and lower ends of the noise reduction sheet are provided with first semicircular mounting holes;

[0005] The noise reduction block is provided with a cavity.

[0006] The utility model further illustrates that a first mounting hole is opened on the right side of the noise reduction block, and two groups of the first mounting holes are arranged and are located at equidistant positions above and below the center line of the corresponding cavity.

[0007] The utility model further describes that a second mounting hole is opened at the center position of the noise reduction block.

[0008] The utility model further describes that a third mounting hole is opened on the noise reduction sheet, and the third mounting holes are arranged in three groups, the positions of the two side groups of the third mounting holes correspond to the positions of the first mounting holes, and the position of the middle group of the third mounting holes corresponds to the second mounting holes.

[0009] The utility model further describes that two groups of rivets are provided, and the rivets are provided inside the first mounting hole and the third mounting hole. The rivets pass through the first mounting hole and the third mounting hole to connect the noise reduction block and the noise reduction sheet.

[0010] The utility model further illustrates that the noise reduction block and the noise reduction sheet are made of vibration-suppressing alloy material.

[0011] Compared with the prior art, the beneficial effect achieved by the utility model is that the utility model is easy to install and has a lightweight structure, and can improve the noise reduction effect and safety performance by providing a first mounting hole, a second mounting hole, a third mounting hole, a noise reduction block, a noise reduction sheet and a cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a combined schematic diagram of the overall structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure combination of the second embodiment of the utility model;

[0016] Figure 4 This is an overall schematic diagram of the second embodiment of the utility model;

[0017] In the figure: 1, noise reduction block; 2, noise reduction sheet; 3, rivet; 4, first semicircular mounting hole; 5, second semicircular mounting hole; 6, cavity; 7, first mounting hole; 8, second mounting hole; 9, third mounting hole. DETAILED DESCRIPTION

[0018] The following is a further non-limiting detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4 The utility model provides a technical solution: a high-speed railway wheel noise reduction block, including a noise reduction component, the noise reduction component including a noise reduction block 1, a noise reduction sheet 2 and a rivet 3, the noise reduction sheet 2 is arranged outside the noise reduction block 1, and the upper and lower ends of the noise reduction block 1 are provided with second semicircular mounting holes 5, and the upper and lower ends of the noise reduction sheet 2 are provided with first semicircular mounting holes 4. During installation, the second semicircular mounting holes 5 on two adjacent noise reduction blocks 1 can form a circular mounting hole, and the first semicircular mounting holes 4 on two adjacent noise reduction sheets 2 can form a circular mounting hole.

[0020] A cavity 6 is provided on the noise reduction block 1, and two groups of cavities 6 are arranged. When the wheels vibrate during rail transit operation, the cavity 6 provided on the noise reduction block 1 will undergo elastic deformation due to the vibration, thereby achieving the effect of vibration absorption and noise reduction. At the same time, the cavity 6 also plays a role in reducing the deadweight of the noise reduction block 1.

[0021] A first mounting hole 7 is provided on the right side of the noise reduction block 1 . There are two groups of first mounting holes 7 , which are located at equidistant positions above and below the center line of the corresponding cavity 6 .

[0022] A second mounting hole 8 is provided at the center of the noise reduction block 1 .

[0023] The noise reduction sheet 2 is provided with third mounting holes 9 , and there are three groups of third mounting holes 9 . The positions of the two side groups of third mounting holes 9 correspond to the positions of the first mounting holes 7 , and the position of the middle group of third mounting holes 9 corresponds to the second mounting holes 8 .

[0024] Two groups of rivets 3 are provided. The rivets 3 are arranged inside the first mounting hole 7 and the third mounting hole 9. The rivets 3 pass through the first mounting hole 7 and the third mounting hole 9 to connect the noise reduction block 1 and the noise reduction sheet 2 to form an integral noise reduction assembly.

[0025] The noise reduction block 1 and the noise reduction sheet 2 are made of vibration-suppressing alloy material.

[0026] Embodiment 1: The rivet 3 is passed through the first mounting hole 7, the second mounting hole 8, and the third mounting hole 9 to form a noise reduction component as a whole, and then the noise reduction component is installed in a circular arrangement on the inner side of the wheel. The second semicircular mounting holes 5 on two adjacent noise reduction blocks 1 can form a circular mounting hole, and the first semicircular mounting holes 4 on two adjacent noise reduction sheets 2 can form a circular mounting hole. Then, the rivet 3 is used to pass through the second semicircular mounting hole 5 and the first semicircular mounting hole 4 to connect and fix multiple groups of noise reduction components to form a whole, which is easy to install and has a lightweight structure.

[0027] In order to improve the overall noise reduction effect, multiple groups of noise reduction sheets 2 can be stacked. In this embodiment, three groups of noise reduction sheets 2 are stacked and then connected and fixed to the noise reduction block 1 with rivets 3.

[0028] In this embodiment, the noise reduction sheet 2 or the noise reduction component can be increased or decreased according to the change in the size of the inner diameter of the wheel to obtain the best noise reduction effect.

[0029] Embodiment 2: In this embodiment, the following changes are made based on Embodiment 1.

[0030] Specifically, the noise reduction block 1 adopts a design of a cavity 6, and a first mounting hole 7 is opened at an equidistant position on the midline of the noise reduction block 1, and the first mounting hole 7 is provided in two groups. A third mounting hole 9 is opened on the noise reduction sheet 2, and the third mounting hole 9 is provided in two groups. The position of the third mounting hole 9 corresponds to the first mounting hole 7 (such as Figure 3 , Figure 4 as shown).

[0031] In this embodiment, the structure of the noise reduction block 1 is simplified, and only one cavity 6 is used. The rivet 3 passes through the first mounting hole 7 and the third mounting hole 9 to connect the noise reduction block 1 and the noise reduction sheet 2 to form an overall noise reduction component. The noise reduction component is then arranged in a circular pattern on the inner side of the wheel, which can also achieve the effect of vibration reduction and noise reduction, and is easy to install and has a lightweight structure.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A high-speed railway wheel noise reduction block, comprising a noise reduction component, characterized in that: The noise reduction component comprises a noise reduction block (1), a noise reduction sheet (2) and a rivet (3); the noise reduction sheet (2) is arranged outside the noise reduction block (1); the upper and lower ends of the noise reduction block (1) are provided with second semicircular mounting holes (5); the upper and lower ends of the noise reduction sheet (2) are provided with first semicircular mounting holes (4); The noise reduction block (1) is provided with a cavity (6).

2. The high-speed railway wheel noise reduction block according to claim 1, characterized in that: A first mounting hole (7) is provided on the right side of the noise reduction block (1), and two groups of the first mounting holes (7) are provided and are located at equal distances above and below the center line of the cavity (6).

3. The high-speed railway wheel noise reduction block according to claim 2, characterized in that: A second mounting hole (8) is provided at the center of the noise reduction block (1).

4. A high-speed railway wheel noise reduction block according to claim 3, characterized in that: The noise reduction sheet (2) is provided with third mounting holes (9), and the third mounting holes (9) are provided in three groups, the positions of the two side groups of the third mounting holes (9) correspond to the positions of the first mounting holes (7), and the position of the middle group of the third mounting holes (9) corresponds to the second mounting holes (8).

5. A high-speed railway wheel noise reduction block according to claim 4, characterized in that: Two groups of rivets (3) are provided. The rivets (3) are arranged inside the first mounting hole (7) and the third mounting hole (9). The rivets (3) pass through the first mounting hole (7) and the third mounting hole (9) to connect the noise reduction block (1) and the noise reduction sheet (2).

6. A high-speed railway wheel noise reduction block according to claim 5, characterized in that: The noise reduction block (1) and the noise reduction sheet (2) are made of vibration-suppressing alloy material.

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