Damping tool for rail train

Abstract

The utility model discloses a damping tool for a rail train, and relates to the technical field of rail trains. The damping box assembly is provided with a first damping box part, a second damping box part, a third damping box part, a fourth damping box part and a fifth damping box part. The first shock absorption box part, the second shock absorption box part, the third shock absorption box part, the fourth shock absorption box part and the fifth shock absorption box part are distributed and installed below a compartment floor in an array mode so as to achieve shock absorption and noise reduction of a train. The shock absorption tool is optimized in structure, shock absorption boxes with different adaptive frequencies can be obtained by changing the appearance of the elastic body and the weight of the counterweight steel plate, a shock absorption set is formed through a matrix composed of the shock absorption boxes with the multiple frequencies, then the shock absorption boxes are sequentially bonded to the lower portion of a compartment floor, the adverse effect of noise under a vehicle on passengers is blocked, and the service life of the vehicle is prolonged. And the damping and noise reduction effects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail trains, in particular to a shock-absorbing tooling for rail trains. Background Art

[0002] The shock-absorbing boxes on the subway are generally composed of a carbon fiber shell, a counterweight steel plate, and an elastomer. The existing shock-absorbing boxes on the subway are divided into three adaptive frequencies according to different arrangements. After calculation and analysis, different frequencies and different numbers of shock-absorbing boxes are dispersed under the floor of the car as required. With the joint action of all the shock-absorbing boxes, the adverse effects of the noise under the car on the passengers are blocked, thereby playing a role in shock absorption and noise reduction.

[0003] The existing shock-absorbing boxes are heavy and cannot meet the demand for overall lightweighting of the vehicle to increase the running speed; the frequency that the shock-absorbing boxes adapt to has a certain deviation. The shock-absorbing products under the floor of the high-speed rail carriages in the past lack the shock-absorbing and noise-reducing effects between the frequencies of 250Hz-630Hz, and cannot meet the latest relevant requirements for sound insulation and customer needs.

[0004] Therefore, it is urgent to design a shock-absorbing tooling for rail trains that has a lightweight structure, adapts to multiple frequencies, meets sound insulation requirements, reduces vibration and noise, and reduces the impact of noise on passengers to solve the above problems. Summary of the invention

[0005] The utility model aims to provide a shock-absorbing tooling for rail trains which has a fully optimized structure, is light in weight, is adaptable to multiple frequencies, reduces vibration and noise, and improves passenger comfort.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] Shock-absorbing tooling for rail trains, including:

[0008] Shock box assembly;

[0009] The shock absorbing box assembly comprises shock absorbing box part one, shock absorbing box part two, shock absorbing box part three, shock absorbing box part four and shock absorbing box part five;

[0010] The first shock absorbing box, the second shock absorbing box, the third shock absorbing box, the fourth shock absorbing box and the fifth shock absorbing box are installed in an array distribution under the carriage floor to achieve train shock and noise reduction.

[0011] The shock absorbing box part one, the shock absorbing box part two, the shock absorbing box part three, the shock absorbing box part four and the shock absorbing box part five have the same structure;

[0012] The shock absorbing box comprises:

[0013] A shell, wherein a box cover is installed at the upper opening of the shell;

[0014] A counterweight steel plate, wherein the counterweight steel plate is installed in the shell;

[0015] An elastic body, one side of which is bonded to a counterweight steel plate;

[0016] The other side of the elastic body is bonded to the inner wall of the box cover;

[0017] The shell and the box cover are made of carbon fiber;

[0018] The weight of the counterweight steel plate and the weight and position of the elastic body are adjusted to adapt to different vibration frequencies.

[0019] The adaptive frequency of the shock absorbing box is 125 Hz;

[0020] The adaptive frequency of the second part of the shock absorbing box is 160Hz;

[0021] The adaptive frequency of the three parts of the shock-absorbing box is 200 Hz;

[0022] The adaptive frequency of the four parts of the shock-absorbing box is 250 Hz;

[0023] The adaptive frequency of the five parts of the shock absorbing box is 630 Hz.

[0024] In the above technical solution, the shock absorbing tooling for rail vehicles of the utility model has the following beneficial effects:

[0025] The utility model optimizes the structure of the shock-absorbing tooling for rail trains. By changing the shape of the elastic body and the weight of the counterweight steel plate, shock-absorbing boxes with different adaptive frequencies can be obtained. A matrix composed of shock-absorbing boxes of multiple frequencies is then formed into a shock-absorbing set. The shock-absorbing boxes are then sequentially bonded under the floor of the carriage to block the adverse effects of the noise under the carriage on the passengers, thereby achieving the effect of shock absorption and noise reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 A schematic diagram of the structure of a shock absorbing box in a shock absorbing tooling for a railway train provided in an embodiment of the utility model;

[0028] Figure 2 A schematic diagram of the structure of a shock absorbing box in a shock absorbing tooling for a railway train provided in an embodiment of the utility model;

[0029] Figure 3 A schematic diagram of a shock absorbing matrix formed by arranging shock absorbing boxes adapted to different frequencies in a shock absorbing tooling for a railway train provided in an embodiment of the utility model.

[0030] Description of reference numerals:

[0031] 1. Shock absorber box assembly;

[0032] 11. Shock-absorbing box part 1; 12. Shock-absorbing box part 2; 13. Shock-absorbing box part 3; 14. Shock-absorbing box part 4; 15. Shock-absorbing box part 5; 16. Shell; 17. Box cover; 18. Counterweight steel plate; 19. Elastomer. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0034] It should be noted that the terms "inside", "upper", "one side", "the other side", "above", etc. used in this article to indicate the orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. Similar expressions are only for the purpose of illustration, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; in addition, the terms "one part", "two parts", "three parts", "four parts", "five parts", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] See also Figure 1-Figure 3 As shown;

[0036] Shock-absorbing tooling for rail trains, including:

[0037] Shock absorber box assembly 1;

[0038] The shock absorbing box assembly 1 comprises a shock absorbing box part 11, a shock absorbing box part 2 12, a shock absorbing box part 3 13, a shock absorbing box part 4 14 and a shock absorbing box part 5 15;

[0039] The first shock absorbing box 11, the second shock absorbing box 12, the third shock absorbing box 13, the fourth shock absorbing box 14 and the fifth shock absorbing box 15 are installed in an array under the carriage floor to achieve train vibration reduction and noise reduction.

[0040] The first shock absorbing box 11, the second shock absorbing box 12, the third shock absorbing box 13, the fourth shock absorbing box 14 and the fifth shock absorbing box 15 have the same structure;

[0041] The shock absorbing box 11 includes:

[0042] A housing 16, wherein a cover 17 is installed at an opening above the housing 16;

[0043] A counterweight steel plate 18, the counterweight steel plate 18 is installed in the housing 16;

[0044] An elastic body 19, one side of the elastic body 19 is bonded to the counterweight steel plate 18;

[0045] The other side of the elastic body 19 is bonded to the inner wall of the box cover 17;

[0046] The housing 16 and the box cover 17 are made of carbon fiber;

[0047] The weight of the counterweight steel plate 18 and the weight and position of the elastic body 19 are adjusted to adapt to different vibration frequencies.

[0048] The adaptability frequency of the shock absorbing box 11 is 125Hz;

[0049] The adaptive frequency of the second shock-absorbing box 12 is 160 Hz;

[0050] The adaptive frequency of the third part 13 of the shock absorbing box is 200 Hz;

[0051] The adaptive frequency of the fourth part 14 of the shock absorbing box is 250 Hz;

[0052] The adaptability frequency of the shock absorbing box five parts 15 is 630 Hz.

[0053] Specifically, the shock-absorbing tooling for rail trains has a shock-absorbing box part 11, a shock-absorbing box part 2 12, a shock-absorbing box part 3 13, a shock-absorbing box part 4 14 and a shock-absorbing box part 5 15 that are adapted to five different frequencies and have the same structure. Taking the shock-absorbing box part 11 as an example, it is composed of a carbon fiber shell, that is, a shell 16 and a box cover 17 bonded together, and then matched with a counterweight steel plate 18 and an elastomer 19. One side of the elastomer 19 is bonded to the counterweight steel plate 18, and the other side of the elastomer 19 is bonded to the carbon fiber box cover 17. The counterweight steel plate 18 is slightly smaller than the internal space of the carbon fiber shell. The elastomer 19 and the counterweight steel plate 18 are placed in the carbon fiber shell, and then the box cover 17 is bonded to the shell 16 to finally form the shock-absorbing box 11.

[0054] Preferably, by changing the shape of the elastomer 19 and the weight of the counterweight steel plate 18, shock-absorbing boxes with different adaptive frequencies can be obtained, and then a shock-absorbing set is formed by a matrix formed by multiple shock-absorbing boxes that adapt to different frequencies. The shock-absorbing boxes are then bonded under the car floor in turn to block the adverse effects of the noise under the car on the passengers, thereby achieving a shock-absorbing and noise-reducing effect.

[0055] Embodiment 1:

[0056] The first shock absorber box 11, the second shock absorber box 12, the third shock absorber box 13, the fourth shock absorber box 14 and the fifth shock absorber box 15 are adapted to five frequencies of 125 Hz, 160 Hz, 200 Hz, 250 Hz and 630 Hz respectively; the adjacent spacing of the shock absorber boxes of the five adapted frequencies is 5 mm, and they are arranged in a 3X11 matrix along the vehicle length direction.

[0057] According to the needs of the vehicle body, the noise source area is arranged for shock absorption (see Figure 3 ), select the appropriate shock absorption collection scheme according to the size of the area.

[0058] Through calculation and test verification, the five adaptive frequencies of 125Hz, 160Hz, 200Hz, 250Hz and 630Hz can meet the needs of passengers. The original three adaptive frequencies are increased to five adaptive frequencies, and the layout is recalculated to complete the adaptive frequency range, improve the shock absorption and noise reduction effects, and meet the customer's usage requirements.

[0059] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A shock absorbing tool for a rail train, characterized in that: include: Shock-absorbing box assembly (1); The shock absorbing box assembly (1) comprises a shock absorbing box part one (11), a shock absorbing box part two (12), a shock absorbing box part three (13), a shock absorbing box part four (14) and a shock absorbing box part five (15); The first shock absorbing box (11), the second shock absorbing box (12), the third shock absorbing box (13), the fourth shock absorbing box (14) and the fifth shock absorbing box (15) are installed in an array distribution under the carriage floor to achieve train shock and noise reduction.

2. The shock absorbing tool for railway train according to claim 1, characterized in that: The shock absorbing box part 1 (11), the shock absorbing box part 2 (12), the shock absorbing box part 3 (13), the shock absorbing box part 4 (14), and the shock absorbing box part 5 (15) have the same structure; The shock absorbing box part (11) comprises: A housing (16), wherein a box cover (17) is installed at the upper opening of the housing (16); A counterweight steel plate (18), wherein the counterweight steel plate (18) is installed in the housing (16); An elastic body (19), one side of the elastic body (19) being bonded to the counterweight steel plate (18); The other side of the elastic body (19) is bonded to the inner wall of the box cover (17); The housing (16) and the box cover (17) are made of carbon fiber material; The weight of the counterweight steel plate (18) and the weight and position of the elastic body (19) are adjusted to adapt to different vibration frequencies.

3. The shock absorbing tooling for rail vehicles according to claim 2 is characterized in that: The adaptive frequency of the first shock absorbing box (11) is 125 Hz; The adaptive frequency of the second shock-absorbing box part (12) is 160 Hz; The adaptive frequency of the three parts (13) of the shock absorbing box is 200 Hz; The adaptive frequency of the four shock-absorbing boxes (14) is 250 Hz; The adaptive frequency of the five shock absorbing boxes (15) is 630 Hz.

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