Train bogie frame with noise reduction function

Abstract

The utility model discloses a train bogie frame with a noise reduction function, which belongs to the technical field of train bogies and is characterized by comprising a bogie body, motors are bolted on two sides of the bogie body, fixing rods are bolted on one sides, close to the bogie body, of the motors, and supporting mechanisms are clamped on the surfaces of the motors. The surface of the supporting mechanism communicates with a noise reduction mechanism, the bogie body can support and limit a motor and a fixing rod, the motor provides power for the bogie body, a noise reduction shell provides installation space and protection for an internal sound absorption plate and a guide pipe, and the sound absorption plate is fixedly connected to the inner wall of the noise reduction shell and can absorb part of noise energy and reduce noise propagation. The guide pipe communicates with the inner side of the noise reduction shell, the silencing cavity formed in the surface of the guide pipe can change the sound wave propagation path and frequency, noise is further reduced, the silencing pipe communicates with the top of the guide pipe, and the noise is reduced while airflow smoothly passes through the air inlet hole and the air outlet hole.

Description

Technical Field

[0001] The utility model relates to the technical field of train bogies, in particular to a train bogie frame with a noise reduction function. Background Art

[0002] The bogie is the running mechanism of a rail vehicle, which directly determines the safety and comfort of the vehicle's operation. The most core component of the bogie is the frame, on which a mounting seat is provided for connecting and installing the various components of the bogie, playing the role of bearing and transmitting loads.

[0003] The overall installation space on the existing bogie frame is limited, so some mounting seats cannot be set on the frame, resulting in the inability to install corresponding equipment components, which affects the performance of the bogie;

[0004] The existing patent (publication number: CN219635211U) discloses a bogie frame, which sets a mounting seat on another mounting seat, and forms the two mounting seats into an assembly, thereby increasing the space utilization on the bogie frame and making the overall structure more compact, so that more mounting seats can be installed on the bogie frame, ensuring the installation of corresponding equipment components, so that more components can be installed on the bogie frame, thereby better improving the performance of the bogie.

[0005] In view of the above problems, existing patents provide solutions, but they lack a structure for reducing the noise of the bogie frame, resulting in excessive noise from the bogie frame, which reduces the comfort and safety of the train during operation.

[0006] Therefore, a train bogie frame with noise reduction function is proposed. Utility Model Content

[0007] The utility model aims to provide a train bogie frame with a noise reduction function, which can solve the problem that the existing train bogie frame has excessive noise, thereby reducing the comfort and safety of the train during operation.

[0008] To achieve the above object, the utility model provides the following technical solution: a train bogie frame with noise reduction function, comprising a bogie body, both sides of the bogie body are bolted with motors, a side of the motor close to the bogie body is bolted with a fixing rod, a surface of the motor is clamped with a supporting mechanism, and a surface of the supporting mechanism is connected to a noise reduction mechanism;

[0009] The noise reduction mechanism includes a noise reduction shell, a sound absorbing panel, a guide pipe, a silencer cavity, a silent pipe, an air inlet and an air outlet. The noise reduction shell is connected to the inner side of the supporting mechanism, the sound absorbing panel is fixedly connected to the inner wall of the noise reduction shell, the guide pipe is connected to the inner side of the noise reduction shell, the silencer cavity is opened on the surface of the guide pipe, the silent pipe is connected to the top of the guide pipe, the air inlet is opened at the bottom of the silent pipe, and the air outlet is opened at the top of the silent pipe.

[0010] Preferably, the support mechanism includes a support shell, a guide hole, a card interface, a connecting rod and a metal ring, the support shell is carded on the surface of the motor, the guide hole is opened on the surface of the support shell, and the noise reduction shell is connected to the inner side of the guide hole.

[0011] Preferably, the card interface is provided on a side of the support shell close to the fixing rod, and the connecting rod is bolted to the bottom of the left side of the support shell.

[0012] Preferably, the metal ring is bolted to a side of the connecting rod away from the supporting shell, and a side of the metal ring away from the connecting rod is bolted to the bottom of the bogie body.

[0013] Preferably, the sound absorbing panel is configured to be wavy in shape and is made of melamine sponge.

[0014] Preferably, a sealing ring is bolted to the bottom of the noise reduction shell, and a side of the sealing ring away from the noise reduction shell is bolted to the surface of the guide hole.

[0015] Preferably, a sound-absorbing pad is provided on the inner side of the support shell, and the sound-absorbing pad is made of rock wool material.

[0016] Preferably, the air inlet is funnel-shaped, the air outlet is circular, and the air inlet and the air outlet are used in conjunction with each other.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The bogie body of the present application can support and limit the motor and the fixed rod. The motor provides power to the bogie body. The noise reduction shell provides installation space and protection for the internal sound-absorbing panel and the guide pipe. The sound-absorbing panel is fixedly connected to the inner wall of the noise reduction shell, which can absorb part of the noise energy and reduce noise propagation. The guide pipe is connected to the inner side of the noise reduction shell. The anechoic cavity opened on its surface can change the propagation path and frequency of sound waves, further reducing noise. The mute pipe is connected to the top of the guide pipe. The air inlet and the air outlet are set to reduce noise while allowing airflow to pass smoothly. The support shell can support and limit the guide hole, the card interface and the connecting rod, and can guide the sound generated by the motor to the guide hole. The guide hole is opened on the surface of the support shell to facilitate the connection between the noise reduction shell and the support shell. The card interface is opened on the side of the support shell close to the fixed rod, which is convenient for cooperation with the fixed rod and enhances the stability of the overall structure. The connecting rod is bolted to the bottom left of the support shell to play a role of connection and support. The metal ring is bolted to the side of the connecting rod away from the support shell and bolted to the bottom of the bogie body to ensure the firm connection between the support mechanism and the bogie body.

[0019] 2. Compared with the existing bogie body, the present application achieves the effect of reducing the noise of the motors on both sides of the bogie body through the cooperation of the support mechanism and the noise reduction mechanism, thereby reducing the noise generated by the motors on both sides of the bogie structure, thereby improving the comfort and safety of the train during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the train bogie frame with noise reduction function of the utility model;

[0021] Figure 2 A diagram of the muffler chamber of the utility model;

[0022] Figure 3 A diagram of a guide hole of the utility model;

[0023] Figure 4 A diagram of the motor of the utility model;

[0024] Figure 5 This is a diagram of the support shell of the utility model.

[0025] In the figure, 1. bogie body; 2. motor; 3. supporting mechanism; 301. supporting shell; 302. guide hole; 303. card interface; 304. connecting rod; 305. metal ring; 4. noise reduction mechanism; 401. noise reduction shell; 402. sound absorbing board; 403. guide pipe; 404. silencer cavity; 405. silent pipe; 406. air inlet; 407. air outlet; 5. fixing rod; 6. sealing ring; 7. sound absorbing pad. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0027] See also Figure 1-5 , the utility model provides a technical solution:

[0028] A train bogie frame with a noise reduction function comprises a bogie body 1, motors 2 are bolted to both sides of the bogie body 1, a fixing rod 5 is bolted to one side of the motor 2 close to the bogie body 1, a support mechanism 3 is clamped to the surface of the motor 2, and a noise reduction mechanism 4 is connected to the surface of the support mechanism 3;

[0029] The noise reduction mechanism 4 includes a noise reduction shell 401, a sound absorbing panel 402, a guide pipe 403, a silencer cavity 404, a silent pipe 405, an air inlet 406 and an air outlet 407. The noise reduction shell 401 is connected to the inner side of the support mechanism 3, the sound absorbing panel 402 is fixedly connected to the inner wall of the noise reduction shell 401, the guide pipe 403 is connected to the inner side of the noise reduction shell 401, the silencer cavity 404 is opened on the surface of the guide pipe 403, the silent pipe 405 is connected to the top of the guide pipe 403, the air inlet 406 is opened at the bottom of the silent pipe 405, and the air outlet 407 is opened at the top of the silent pipe 405.

[0030] In this embodiment: by setting the bogie body 1, the motor 2 and the fixing rod 5 can be supported and limited, by setting the motor 2 to provide power to the bogie body 1, by setting the noise reduction shell 401, an installation space and protection are provided for the internal sound absorbing plate 402 and the guide pipe 403, by setting the sound absorbing plate 402 fixedly connected to the inner wall of the noise reduction shell 401, part of the noise energy can be absorbed and the noise propagation can be reduced, by setting the guide pipe 403 to be connected to the inner side of the noise reduction shell 401, the sound absorption cavity 404 opened on the surface can change the sound wave propagation path and frequency, and further reduce the noise, by setting the silent pipe 405 to be connected to the top of the guide pipe 403, the setting of the air inlet 406 and the air outlet 407 allows the air flow to pass smoothly while reducing the noise, and by setting the support shell 301 can support and limit the guide hole 302, the card interface 303 and the connecting rod 304, and can guide the sound generated by the motor 2 to the guide hole 302. By setting the guide hole 302 to be opened on the surface of the support shell 301, the connection between the noise reduction shell 401 and the support shell 301 is facilitated. By setting the card interface 303 to be opened on the side of the support shell 301 close to the fixed rod 5, it is convenient to cooperate with the fixed rod 5 and enhance the stability of the overall structure. By setting the connecting rod 304 to be bolted to the bottom left side of the support shell 301, it plays a role of connection and support. By setting the metal ring 305 to be bolted to the side of the connecting rod 304 away from the support shell 301 and bolted to the bottom of the bogie body 1, the firm connection between the support mechanism 3 and the bogie body 1 is guaranteed.

[0031] Specifically, Figure 3 , Figure 5 As shown, the support mechanism 3 includes a support shell 301, a guide hole 302, a card interface 303, a connecting rod 304 and a metal ring 305. The support shell 301 is carded on the surface of the motor 2, the guide hole 302 is opened on the surface of the support shell 301, and the noise reduction shell 401 is connected to the inner side of the guide hole 302.

[0032] Specifically, Figure 3 , Figure 5 As shown, the card interface 303 is provided on a side of the supporting shell 301 close to the fixing rod 5 , and the connecting rod 304 is bolted to the bottom of the left side of the supporting shell 301 .

[0033] Specifically, Figure 3 , Figure 5 As shown, the metal ring 305 is bolted to a side of the connecting rod 304 away from the supporting shell 301 , and the side of the metal ring 305 away from the connecting rod 304 is bolted to the bottom of the bogie body 1 .

[0034] In this embodiment: by setting a support shell 301, the support shell 301 is snapped onto the surface of the motor 2, providing stable support and protection, reducing the impact of external shock and vibration on the motor 2, and can guide the noise generated by the motor 2 to the guide hole 302. By setting the guide hole 302, the guide hole 302 is opened on the surface of the support shell 301, which facilitates the accurate connection between the noise reduction shell 401 and the support shell 301. By setting the card interface 303, the fixing rod 5 is bolted to the motor 2 through the card interface 303 to support and limit the motor 2. By setting the connecting rod 304, the bolting of the connecting rod 304 provides support and fixing points for the support shell 301. By setting the metal ring 305, the stability of the bolting between the support mechanism 3 and the bogie body 1 is ensured.

[0035] Specifically, Figure 2 As shown, the sound absorbing board 402 is configured to be wavy, and the sound absorbing board 402 is made of melamine sponge.

[0036] Specifically, Figure 5 As shown, a sealing ring 6 is bolted to the bottom of the noise reduction shell 401 , and a side of the sealing ring 6 away from the noise reduction shell 401 is bolted to the surface of the guide hole 302 .

[0037] In this embodiment: by setting the sound absorbing panel 402 to be wavy, the wavy design increases the contact area between the sound absorbing panel 402 and the sound, thereby improving the sound absorption effect, and being able to more effectively absorb and reduce noise energy. By setting the sound absorbing panel 402 to be made of melamine sponge, the melamine sponge material has good sound absorption performance, fire resistance and durability, thereby ensuring the reliability and stability of the sound absorbing panel 402 in long-term use. By setting the sealing ring 6, the setting of the sealing ring 6 enhances the sealing between the noise reduction shell 401 and the guide hole 302, prevents sound leakage from the connection, and improves the overall noise reduction effect.

[0038] Specifically, Figure 3 As shown, a sound absorbing pad 7 is provided on the inner side of the supporting shell 301, and the sound absorbing pad 7 is made of rock wool material.

[0039] Specifically, Figure 2 , Figure 5 As shown, the air inlet 406 is funnel-shaped, and the air outlet 407 is circular, and the air inlet 406 and the air outlet 407 are used in conjunction with each other.

[0040] In this embodiment: by setting the sound-absorbing pad 7, the sound-absorbing pad 7 can further absorb the noise generated by the motor 2, enhance the noise reduction effect, and reduce the noise propagation outward; by setting the sound-absorbing pad 7 to be made of rock wool material, the rock wool material has good sound absorption and heat insulation properties, which can not only reduce noise, but also block the heat transfer generated by the motor 2 to a certain extent; by setting the air inlet 406 to be funnel-shaped, the funnel-shaped air inlet 406 can more effectively collect the incoming sound and airflow, reduce the reflection and scattering of sound, and improve the noise reduction efficiency; by setting the air outlet 407 to be circular, the circular air outlet 407 helps to smoothly discharge the processed airflow and sound, reduce turbulence and noise regeneration at the outlet, and the coordinated use of the air inlet 406 and the air outlet 407 optimizes the flow path of the sound and airflow, making the noise reduction process smoother and more efficient.

[0041] Working principle: First, when the train moves, the bogie body 1 works, and then the user energizes and starts the motor 2. After the motor 2 runs, it provides power for the bogie body 1. The support shell 301 is clamped on the surface of the motor 2 to provide stable support and protection for the motor 2, and the sound generated by the motor 2 is guided to the guide hole 302. The guide hole 302 can guide the noise generated by the motor 2 to the noise reduction shell 401. Then the sound absorbing board 402 adopts a wavy design and is made of melamine sponge, which increases the contact area with the noise and absorbs the noise. The silencer cavity 404 opened on the surface of the guide pipe 403 can change the propagation path and frequency of the sound wave, further reducing the noise. Finally, the noise enters the silent pipe 405 through the air inlet 406 and is discharged through the air outlet 407 on the surface of the silent pipe 405.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A train bogie frame with noise reduction function, comprising a bogie body (1), both sides of the bogie body (1) are bolted with motors (2), and a fixing rod (5) is bolted on the side of the motor (2) close to the bogie body (1), characterized in that: The surface of the motor (2) is clamped with a support mechanism (3), and the surface of the support mechanism (3) is connected to a noise reduction mechanism (4); The noise reduction mechanism (4) comprises a noise reduction shell (401), a sound absorbing plate (402), a guide pipe (403), a muffler cavity (404), a silent pipe (405), an air inlet (406) and an air outlet (407); the noise reduction shell (401) is connected to the inner side of the support mechanism (3); the sound absorbing plate (402) is fixedly connected to the inner wall of the noise reduction shell (401); the guide pipe (403) is connected to the inner side of the noise reduction shell (401); the muffler cavity (404) is provided on the surface of the guide pipe (403); the silent pipe (405) is connected to the top of the guide pipe (403); the air inlet (406) is provided at the bottom of the silent pipe (405); and the air outlet (407) is provided at the top of the silent pipe (405).

2. The train bogie frame with noise reduction function according to claim 1, characterized in that: The support mechanism (3) comprises a support shell (301), a guide hole (302), a card interface (303), a connecting rod (304) and a metal ring (305); the support shell (301) is card-connected to the surface of the motor (2); the guide hole (302) is provided on the surface of the support shell (301); and the noise reduction shell (401) is connected to the inner side of the guide hole (302).

3. The train bogie frame with noise reduction function according to claim 2, characterized in that: The card interface (303) is provided on a side of the support shell (301) close to the fixing rod (5), and the connecting rod (304) is bolted to the bottom of the left side of the support shell (301).

4. The train bogie frame with noise reduction function according to claim 3, characterized in that: The metal ring (305) is bolted to a side of the connecting rod (304) away from the supporting shell (301), and the side of the metal ring (305) away from the connecting rod (304) is bolted to the bottom of the bogie body (1).

5. The train bogie frame with noise reduction function according to claim 1, characterized in that: The sound absorbing board (402) is designed to be wavy in shape and is made of melamine sponge.

6. The train bogie frame with noise reduction function according to claim 1, characterized in that: A sealing ring (6) is bolted to the bottom of the noise reduction shell (401), and a side of the sealing ring (6) away from the noise reduction shell (401) is bolted to the surface of the guide hole (302).

7. The train bogie frame with noise reduction function according to claim 2, characterized in that: The inner side of the support shell (301) is provided with a sound-absorbing pad (7), and the sound-absorbing pad (7) is made of rock wool material.

8. The train bogie frame with noise reduction function according to claim 1, characterized in that: The air inlet (406) is funnel-shaped, and the air outlet (407) is circular, and the air inlet (406) and the air outlet (407) are used in conjunction with each other.

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