Rail transit transport vehicle and wide-frequency-band transverse damping device

Abstract

The utility model discloses a rail transit transport vehicle and a wide-frequency-band transverse damping device, and relates to the technical field of rail vehicles. According to the wide-frequency-band transverse vibration reduction device, the tail end of an elastic base body is connected to a suspension frame, the head end of the elastic base body abuts against a vehicle body, a first liquid storage cavity is formed in the elastic base body, and the first liquid storage cavity is filled with magnetorheological fluid; the liquid storage device is provided with a second liquid storage cavity, and the second liquid storage cavity is communicated with the first liquid storage cavity; the reset piece is used for enabling the magnetorheological fluid in the second liquid storage cavity to flow back into the first liquid storage cavity so as to fill the first liquid storage cavity; the damping regulator is used for generating magnetic fields with different intensities so as to regulate the viscosity of the magnetorheological fluid; the acquirer is used for acquiring the transverse vibration frequency of the vehicle body; and the controller is in signal connection with the acquirer and the damping regulator and is used for controlling the magnetic field intensity generated by the damping regulator according to the frequency signal of the acquirer so as to regulate the damping of the elastic base body, and the wide-frequency-band transverse vibration reduction device can effectively avoid the low-frequency shaking phenomenon of the rail transit transportation vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rail vehicles, and more particularly, to a wide-band lateral vibration damping device. In addition, the present application also relates to a rail transit vehicle comprising the wide-band lateral vibration damping device. BACKGROUND

[0002] The carrying capacity of the rail transit vehicle is generally strong, and it can often transport thousands of passengers and a large amount of goods along the track, has strong carrying capacity, and is particularly suitable for long-distance transportation or situations that need to cross obstacles. In particular, compared with ordinary diesel locomotives or electric cars, the maximum speed of high-speed maglev trains is higher.

[0003] The smoothness index and the ride comfort are important indexes for evaluating the operation of the rail transit vehicle. At present, the suspension structure of the high-speed maglev train generally uses rubber springs to achieve passive lateral vibration damping. However, due to the narrow response frequency band of the rubber spring, the high-speed maglev train has a low-frequency shaking problem when running.

[0004] In summary, how to avoid the low-frequency shaking phenomenon of the rail transit vehicle is a problem that needs to be solved by the technical personnel in the field at present. CONTENT OF THE INVENTION

[0005] Therefore, the purpose of the present application is to provide a wide-band lateral vibration damping device, which can effectively avoid the low-frequency shaking phenomenon of the rail transit vehicle.

[0006] Another purpose of the present application is to provide a rail transit vehicle comprising the wide-band lateral vibration damping device.

[0007] In order to achieve the above purpose, the present application provides the following technical solutions:

[0008] A wide-band lateral vibration damping device comprises:

[0009] An elastic base, the tail end of which is connected to a suspension frame, and the head end of which abuts against a vehicle body, the inside of the elastic base having a first liquid storage cavity, and the first liquid storage cavity being filled with a magneto-rheological fluid;

[0010] A liquid storage device having a second liquid storage cavity, and the second liquid storage cavity being communicated with the first liquid storage cavity;

[0011] A reset member for making the magneto-rheological fluid in the second liquid storage cavity flow back to the first liquid storage cavity to fill the first liquid storage cavity;

[0012] A damping adjuster for generating a magnetic field of different intensities to adjust the viscosity of the magneto-rheological fluid;

[0013] Acquisition device, used to acquire the lateral vibration frequency of the vehicle body;

[0014] The controller, connected to the acquisition unit and the damping regulator, is used to control the magnetic field strength generated by the damping regulator according to the frequency signal of the acquisition unit, so as to adjust the damping of the elastic matrix.

[0015] Preferably, the elastic matrix is ​​disposed on the suspension frame via a mounting member, and the elastic matrix is ​​disposed on the mounting member;

[0016] Furthermore, the mounting component has an internal flow channel, with the first end of the flow channel connected to the first liquid storage chamber and the second end connected to the second liquid storage chamber.

[0017] Preferably, the reservoir is an elastic airbag, and the reset member is used to push the airbag to rebound and reset.

[0018] Furthermore, the liquid reservoir is disposed on the mounting component, the flow channel is an internal channel of the mounting component, and the liquid outlet of the flow channel is connected to and communicates with the first liquid reservoir or the second liquid reservoir.

[0019] Preferably, the reset member has a high-pressure chamber, and the airbag is disposed in the high-pressure chamber in an inflatable or retractable manner so as to push the airbag to rebound and reset by the high-pressure gas in the high-pressure chamber.

[0020] Preferably, the reset member has an air inlet for filling the high-pressure chamber with gas, and the air inlet is provided with a one-way valve to prevent the high-pressure gas inside the high-pressure chamber from flowing out through the air inlet.

[0021] Preferably, the elastic matrix is ​​disposed at the first end of the mounting member, and the second end of the mounting member is connected to the suspension frame;

[0022] The reset component is an annular tube, which is fitted and sealed to the circumference of the mounting component. The liquid reservoir is an annular airbag, which is fitted to the circumference of the mounting component and placed in the high-pressure chamber.

[0023] Preferably, the flow guiding channel includes a first main flow channel, a second main flow channel, a plurality of first branch flow channels, and a plurality of second branch flow channels;

[0024] One end of each of the first branch channels is connected to the first liquid storage chamber, and the other end is connected to the first main channel;

[0025] One end of each of the second branch channels is connected to the first main channel, and the other end is connected to the second main channel;

[0026] The second main flow channel is connected to the second liquid storage chamber.

[0027] Preferably, the elastic base is a circular truncated cone structure, the first liquid storage cavity is a circular truncated cone chamber, and the first liquid storage cavity is located at the large-diameter end of the elastic base, the small-diameter end of the first liquid storage cavity extends to the small-diameter end of the elastic base, and the center line of the first liquid storage cavity is collinear with the center line of the elastic base.

[0028] The mounting member is a cylindrical structure, and the center line of the mounting member is collinear with the center line of the elastic base.

[0029] Preferably, the first branch flow channel and the second branch flow channel both extend in the axial direction of the mounting member, and the second total flow channel extends in the radial direction of the mounting member.

[0030] The first total flow channel includes a first flow convergence channel, a second flow convergence channel, and a connecting channel, the first flow convergence channel and the second flow convergence channel both extend in the radial direction of the mounting member, the connecting channel extends in the axial direction of the mounting member, and one end of the connecting channel communicates with the end of the first flow convergence channel, and the other end of the connecting channel communicates with the end of the second flow convergence channel.

[0031] The first branch flow channel communicates with the middle position of the first flow convergence channel.

[0032] The second branch flow channel communicates with the middle position of the second flow convergence channel and the second total flow channel.

[0033] An urban rail transit vehicle includes the broadband transverse vibration damping device described in any one of the preceding embodiments.

[0034] In the present application, the left end of the elastic base is fixed on the suspension frame, the right end extends to the vehicle body and abuts against the vehicle body, the first liquid storage cavity is formed in the interior of the elastic base, the first liquid storage cavity can be a cylindrical or square chamber, and the first liquid storage cavity is filled with and stores magnetorheological fluid.

[0035] In cooperation, the liquid storage device has a second liquid storage cavity, and the first liquid storage cavity is communicated with the second liquid storage cavity through a pipeline and / or a joint, so as to receive the overflow of the magnetorheological fluid in the first liquid storage cavity, and a reset member is arranged to push the magnetorheological fluid in the second liquid storage cavity to flow back to the first liquid storage cavity, so that the elastic base can continuously play a damping role.

[0036] Furthermore, the wide-band transverse damping device is provided with an obtainer for obtaining the frequency of the transverse vibration of the vehicle body that the wide-band transverse damping device needs to damp; and a damping adjuster, which can be a coil or an electromagnet, is embedded in the first liquid storage cavity or arranged on the suspension frame, and the magnetic field intensity generated by the damping adjuster is adjusted to control the viscosity of the magneto-rheological fluid in the first liquid storage cavity, i.e. to realize the damping of the magneto-rheological fluid under pressure.

[0037] The obtainer and the damping adjuster are both signal-connected to the controller, and when the vehicle body vibrates, the elastic matrix is compressed to make the magneto-rheological fluid in the first liquid storage cavity flow out and flow into the second liquid storage cavity of the liquid accumulator, and at the same time, the obtainer generates a frequency signal in real time, so that the controller controls the magnetic field intensity generated by the damping adjuster, so that the wide-band transverse damping device can realize the damping of the low-frequency vibration of the vehicle body. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of the provided drawings.

[0039] Figure 1 The structural schematic diagram of the specific embodiments provided by the present application.

[0040] Reference signs:

[0041] 1-suspension frame; 2-vehicle body; 3-elastic matrix; 31-first liquid storage cavity; 4-liquid accumulator; 41-second liquid storage cavity; 5-damping adjuster; 6-obtainer; 7-controller; 8-mounting part; 81-flow guide channel; 811-first total flow channel; 8111-first flow collection channel; 8112-second flow collection channel; 8113-connection channel; 812-second total flow channel; 813-first branch flow channel; 814-second branch flow channel; 9-return part; 91-high-pressure chamber; 10-one-way valve. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort fall within the scope of protection of the present application.

[0043] The core of this application is to provide a wide-band lateral vibration damping device, which can effectively prevent low-frequency swaying in rail transport vehicles. Another core aspect of this application is to provide a rail transport vehicle including the aforementioned wide-band lateral vibration damping device.

[0044] This application provides a wideband lateral vibration damping device, including an elastic matrix 3, a reservoir 4, a reset element 9, a damping regulator 5, a sensor 6, and a controller 7. The elastic matrix 3 has its tail end connected to a suspension frame 1 and its head end abutting against a vehicle body 2. The elastic matrix 3 has a first reservoir 31 filled with magnetorheological fluid. The reservoir 4 has a second reservoir 41 connected to the first reservoir 31. The reset element 9 allows the magnetorheological fluid in the second reservoir 41 to flow back into the first reservoir 31, filling it completely. The damping regulator 5 generates magnetic fields of varying intensities to adjust the viscosity of the magnetorheological fluid. The sensor 6 acquires the lateral vibration frequency of the vehicle body 2. The controller 7 is signal-connected to the sensor 6 and the damping regulator 5, and controls the magnetic field strength generated by the damping regulator 5 according to the frequency signal from the sensor 6 to adjust the damping of the elastic matrix 3.

[0045] Specifically, such as Figure 1 As shown, the elastic substrate 3 can be made of rubber or silicone, etc. The left end of the elastic substrate 3 is fixed on the suspension frame 1, and the right end extends toward the vehicle body 2 and abuts against it. The elastic substrate 3 has a first liquid storage cavity 31 inside. The first liquid storage cavity 31 can be a cylindrical or square type of cavity, and the first liquid storage cavity 31 is filled with and stores magnetorheological fluid.

[0046] Correspondingly, the reservoir 4 has a second reservoir 41 and is connected to the first reservoir 31 through pipes and / or connectors, so as to receive the magnetorheological fluid overflowing from the first reservoir 31; and is equipped with a reset member 9 to push the magnetorheological fluid in the second reservoir 41 back to the first reservoir 31, so that the elastic matrix 3 can continuously play a vibration damping role.

[0047] It should be noted that the types of the reservoir 4 and the reset component 9 are not limited, as long as they can achieve the above functions. For example, in some specific embodiments, the reservoir 4 is a tank, and the reset component 9 is a pump. The inlet of the tank is connected to the first storage chamber 31 through a first branch pipe, and a first check valve is provided at the inlet end of the reservoir 4 to prevent the magnetorheological fluid flowing out of the pump from flowing back into the second storage chamber 41 inside the reservoir 4 through the inlet of the reservoir 4. The outlet of the reservoir 4 is connected to the inlet of the pump, and the outlet of the pump is connected to the first storage chamber 31 through a second branch pipe. A second check valve is also provided at the outlet end of the pump to prevent the magnetorheological fluid flowing out of the first storage chamber 31 from flowing into the reservoir 4 through the pump.

[0048] Furthermore, the wide-band transverse damping device is provided with an obtainer 6, which can be a vibration sensor or an eddy current sensor, and is arranged on the vehicle body 2 to directly and timely detect the frequency of the transverse vibration of the vehicle body 2 that needs to be damped by the wide-band transverse damping device. Alternatively, a receiver can be arranged on the center console to receive the frequency signal transmitted by the center console. Of course, the obtainer 6 is not limited to the above-mentioned types, as long as it can obtain the frequency of the vehicle body 2 that needs to be damped by the wide-band transverse damping device. The wide-band transverse damping device is also provided with a damping adjuster 5, which can be a coil or an electromagnet, and is embedded in the first liquid storage cavity 31 or arranged on the suspension 1. In use, the magnetic field strength generated by the damping adjuster 5 is adjusted to control the viscosity of the MR fluid in the first liquid storage cavity 31, so as to realize the damping of the MR fluid under pressure.

[0049] The obtainer 6 and the damping adjuster 5 are both signal-connected to a controller 7. In use, after the vehicle body 2 generates vibration, the elastic matrix 3 is compressed, so that the MR fluid in the first liquid storage cavity 31 flows out and flows into the second liquid storage cavity 41 of the liquid accumulator 4. At the same time, the obtainer 6 generates a frequency signal in real time, so that the controller 7 controls the strength of the magnetic field generated by the damping adjuster 5, so that the wide-band transverse damping device can realize damping for the low-frequency vibration of the vehicle body 2.

[0050] In order to reduce the installation difficulty while ensuring the damping effect, on the basis of the above-mentioned embodiment, the elastic matrix 3 is arranged on the suspension 1 through a mounting member 8, and the elastic matrix 3 is arranged on the mounting member 8. The mounting member 8 has a flow guide channel 81 in the inside, and the first end of the flow guide channel 81 is communicated with the first liquid storage cavity 31, and the second end is communicated with the second liquid storage cavity 41.

[0051] As shown in Figure 1 The left end of the elastic matrix 3 is fixedly connected to the mounting member 8 by means of adhesion or nesting, and the mounting member 8 is a rigid structure, such as a cast iron member or an alloy member. In use, the elastic matrix 3 can be mounted on the suspension 1 by being fixed on the suspension 1 through screws or rivets.

[0052] Furthermore, the flow guide channel 81 is arranged in the inside of the mounting member 8, such as a hole formed in the inside of the mounting member 8, or a pipeline fixed in the inside of the mounting member 8 by means of a hoop, and one end of the flow guide channel 81 is communicated with the first liquid storage cavity 31, and the other end is communicated with the second liquid storage cavity 41. In this way, the second liquid storage cavity 41 of the liquid accumulator 4 is communicated with the first liquid storage cavity 31.

[0053] Preferably, the elastic matrix 3 is sealingly connected to the mounting member 8, and the first liquid storage cavity 31 is communicated with the flow guide channel 81.

[0054] In order to reduce weight and installation difficulty, on the basis of the above embodiment, the liquid reservoir 4 is an elastic air bag, and the reset member 9 is used to push the air bag to rebound and reset; and the liquid reservoir 4 is arranged on the mounting member 8, the flow guide channel 81 is an internal channel of the mounting member 8, and the liquid port of the flow guide channel 81 is connected and communicated with the first liquid storage cavity 31 or the second liquid storage cavity 41.

[0055] As shown in Figure 1 , the liquid reservoir 4 is an elastic air bag, the inner cavity of the air bag is the second liquid storage cavity 41, the opening of the air bag is connected with the first liquid storage cavity 31 through the flow guide channel 81, and the second liquid storage cavity 41 is connected with the first liquid storage cavity 31; in addition, the reset member 9 is used to apply a pushing force to the air bag to push the reset member 9 to rebound, so that the magnetorheological fluid in the second liquid storage cavity 41 flows back to the first liquid storage cavity 31, and the magnetorheological fluid in the first liquid storage cavity 31 can realize vibration reduction of the low-frequency vibration of the vehicle body 2 in the process of continuously realizing vibration reduction.

[0056] In use, the elastic base 3 is compressed and shrunk, the magnetorheological fluid in the first liquid storage cavity 31 flows into the second liquid storage cavity 41 of the liquid reservoir 4 through the flow guide channel 81, and vice versa. The reset member 9 pushes the liquid reservoir 4 to rebound and reset, so that the magnetorheological fluid flows back to the first liquid storage cavity 31 to continuously realize vibration reduction of the low-frequency vibration of the vehicle body 2.

[0057] In summary, since the air bag is used, compared with the related art, the weight of the wide-band transverse vibration reduction device is lighter; in addition, the liquid reservoir 4 is fixed on the mounting member 8, the right liquid port of the flow guide channel is opposite to the elastic base 3, and the left liquid port of the flow guide channel is opposite to the liquid reservoir 4, and the wide-band transverse vibration reduction device has the advantages of simple structure, light weight, and the like. When installing, the mounting member 8 is fixed on the suspension frame 1, and the installation of the liquid reservoir 4 and the elastic base 3 can be realized at the same time, so as to effectively reduce the installation difficulty of the wide-band transverse vibration reduction device.

[0058] In order to ensure the low-frequency vibration of the vehicle body 2 while further reducing the installation difficulty, on the basis of the above embodiment, the reset member 9 has a high-pressure chamber 91, and the air bag that can be expanded or contracted is arranged in the high-pressure chamber 91, so as to push the air bag to rebound and reset through the high-pressure gas in the high-pressure chamber 91.

[0059] As shown in Figure 1As shown, the reset member 9 comprises a shell structure with a high-pressure chamber 91, and the liquid accumulator 4 in the form of an air bag is embedded in the high-pressure chamber 91. Since the high-pressure chamber 91 is filled with high-pressure gas, when the pressure on the elastic matrix 3 is less than the pressure on the liquid accumulator 4, the MR fluid in the liquid accumulator 4 will flow back to the first liquid storage cavity 31 in the elastic matrix 3 under the push of the high-pressure gas. When the pressure on the elastic matrix 3 is greater than the pressure on the liquid accumulator 4, the MR fluid in the first liquid storage cavity 31 will flow into the liquid accumulator 4 through the flow channel 81.

[0060] In order to regulate the gas pressure in the high-pressure chamber 91 and avoid pressure loss of the high-pressure chamber 91, the reset member 9 has an air inlet for filling gas into the high-pressure chamber 91, and a one-way valve 10 is arranged in the air inlet to prevent the high-pressure gas in the high-pressure chamber 91 from flowing out through the air inlet.

[0061] As shown in the drawings, Figure 1 The side wall of the reset member 9 is provided with an air inlet, so that gas can be filled into the high-pressure chamber 91 to increase the gas pressure in the high-pressure chamber 91. During the continuous operation of the wide-bandwidth lateral vibration damping device, the high-pressure gas in the high-pressure chamber 91 cannot be discharged through the air inlet because the one-way valve 10 is arranged in the air inlet, thereby ensuring the function of the reset member 9 to push the liquid accumulator 4 to return to the original position.

[0062] In order to ensure the damping effect of the wide-bandwidth lateral vibration damping device, the elastic matrix 3 is arranged at the first end of the mounting member 8, and the second end of the mounting member 8 is connected to the suspension frame 1. The reset member 9 is a ring-shaped pipe body, the reset member 9 is sleeved and sealingly fitted on the peripheral surface of the mounting member 8, the liquid accumulator 4 is a ring-shaped air bag, and the liquid accumulator 4 is sleeved on the peripheral surface of the mounting member 8 and in the high-pressure chamber 91.

[0063] Specifically, as shown in the drawings, Figure 1 The elastic matrix 3 is fixedly connected to the right end of the mounting member 8, and the left end of the mounting seat is fixedly connected to the upper surface of the suspension frame 1. The reset member 9 and the liquid accumulator 4 are both ring-shaped structures, and the reset member 9 and the liquid accumulator 4 are both sleeved on the peripheral surface of the mounting member 8. The reset member 9 is a ring-shaped pipe body, the high-pressure chamber 91 is the inner cavity of the pipe body, and an opening is left on the inner side wall of the reset member 9, so that the liquid accumulator 4 can be embedded in the high-pressure chamber 91 of the reset member 9. The inner side wall of the reset member 9 is sealingly fitted with the mounting member 8, for example, the reset member 9 is bonded to the mounting member 8, or a sealing ring is arranged between the reset member 9 and the mounting member 8, so as to ensure the sealing property of the high-pressure chamber 91.

[0064] To improve the uniformity of magnetorheological fluid flow, based on the above embodiment, the flow channel 81 includes a first main flow channel 811, a second main flow channel 812, a plurality of first branch channels 813, and a plurality of second branch channels 814; one end of the plurality of first branch channels 813 is connected to the first liquid storage chamber 31, and the other end is connected to the first main flow channel 811; one end of the plurality of second branch channels 814 is connected to the first main flow channel 811, and the other end is connected to the second main flow channel 812; the second main flow channel 812 is connected to the second liquid storage chamber 41.

[0065] like Figure 1 As shown, in the flow channel 81, the second main flow channel 812, the second branch flow channel 814, the first main flow channel 811, and the first branch flow channel 813 are arranged from left to right and connected in sequence. That is, the right end of several first branch flow channels 813 is connected to the first liquid storage chamber 31, and the left end is connected to the first main flow channel 811. The right end of several second branch flow channels 814 is connected to the first main flow channel 811, and the left end is connected to the second main flow channel 812. The end of the second main flow channel 812 extending to the outer peripheral surface of the mounting component 8 is connected to the second liquid storage chamber 41.

[0066] When the elastic matrix 3 is compressed and rebounds, the magnetorheological fluid in the first reservoir 31 will be diverted out through several first branch channels 813, collected through the first main channel 811, and then diverted out through several second branch channels 814. Finally, the magnetorheological fluid will be collected through the second main channel 812 and guided into the second reservoir 41. When the magnetorheological fluid in the second reservoir 41 flows back to the first reservoir 31, it will first be completely discharged through the second main channel 812, and then diverted through the second branch channels 814. The flow is diverted by channel 814, causing the liquid to converge in the second main flow channel 812. Finally, the magnetorheological fluid is diverted through the first diversion channel 813 and guided to the first storage chamber 31. During the use of this broadband lateral vibration damping device, the magnetorheological fluid flows with high uniformity between the first storage chamber 31 and the second storage chamber 41, and the velocity of the magnetorheological fluid discharged from and returned to the first storage chamber 31 is high. Therefore, the response speed of this broadband lateral vibration damping device is high, which is beneficial to ensuring the vibration damping effect.

[0067] To simultaneously reduce the stress concentration of the broadband lateral vibration damping device, based on the above embodiment, the elastic substrate 3 has a frustum-shaped structure, the first liquid storage chamber 31 has a frustum-shaped chamber, and the first liquid storage chamber 31 is located at the large-diameter end of the elastic substrate 3, the small-diameter end of the first liquid storage chamber 31 extends toward the small-diameter end of the elastic substrate 3, and the centerline of the first liquid storage chamber 31 is collinear with the centerline of the elastic substrate 3; the mounting member 8 has a cylindrical structure, and the centerline of the mounting member 8 is collinear with the centerline of the elastic substrate 3.

[0068] like Figure 1As shown, the left large-diameter end of the elastic base 3 is fixed on the top of the cylindrical mounting member 8, and the right small-diameter end abuts against the vehicle body 2. The left end of the first liquid storage cavity 31 has a larger diameter than the right end thereof, and the first liquid storage cavity 31, the elastic base 3 and the mounting member 8 are coaxial. In this way, the stress concentration of the wide-band transverse vibration damping device is low.

[0069] Further, preferably, the first and second sub-flow passages 813 and 814 are uniformly arranged around the center line of the mounting member 8, and the first and second total flow passages 811 and 812 are symmetrical about the center line of the mounting member 8, so as to improve the uniformity of the flow process of the magnetorheological fluid, and make the liquid flow out of or back into the first liquid storage cavity 31 more uniformly, thereby ensuring the damping effect.

[0070] To further ensure the damping effect, on the basis of the above embodiment, the first and second sub-flow passages 813 and 814 extend along the axial direction of the mounting member 8, and the second total flow passage 812 extends along the radial direction of the mounting member 8. The first total flow passage 811 includes a first flow collection passage 8111, a second flow collection passage 8112 and a connecting passage 8113. The first and second flow collection passages 8111 and 8112 extend along the radial direction of the mounting member 8, and the connecting passage 8113 extends along the axial direction of the mounting member 8. One end of the connecting passage 8113 is connected to the end of the first flow collection passage 8111, and the other end thereof is connected to the end of the second flow collection passage 8112. The first sub-flow passage 813 is connected to the middle position of the first flow collection passage 8111, and the second sub-flow passage 814 is connected to the middle positions of the second flow collection passage 8112 and the second total flow passage 812.

[0071] As Figure 1As shown, the first branch passage 813, the second branch passage 814 and the connecting passage 8113 all extend along the axial direction of the mounting member 8, the first and second converging passages 8111 and 8112 and the second total passage 812 all extend along the radial direction of the mounting member 8, the connecting passage 8113 is connected at the end of the first and second converging passages 8111 and 8112 extending to the circumferential surface of the mounting member 8, the first branch passage 813 is connected at the middle position of the first converging passage 8111 and the first liquid storage cavity 31 along the radial direction of the mounting member 8, and the second branch passage 814 is connected at the middle position of the second converging passage 8112 and the second total passage 812 along the radial direction of the mounting member 8, so that the speed of the MR fluid flowing out of the first liquid storage cavity 31 is relatively fast, the MR fluid is discharged after buffering through the first total passage 811, the speed of the target volume of the MR fluid flowing out is relatively high, and the MR fluid will not be excessively discharged. The response speed of the wide-band transverse vibration damping device is relatively high, so as to ensure the damping effect, and when the MR fluid flows back to the first liquid storage cavity 31, the target volume of the MR fluid flows back to the first liquid storage cavity 31 through the first branch passage 813 after buffering through the first total passage 811, so as to quickly restore the damping function of the MR fluid, so as to be able to perform the next damping.

[0072] In addition to the wide-band transverse vibration damping device described above, the present application also provides a rail transit vehicle comprising the wide-band transverse vibration damping device disclosed in the above embodiments. The structures of other parts of the rail transit vehicle can refer to the prior art, and will not be described herein.

[0073] It should be noted that the relationship terms such as "first" and "second" described above are only used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between the entities; the "upper surface, lower surface, top, bottom" described above and the orientation words "up, down, left, right" are defined based on the drawings.

[0074] The embodiments in the present specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other.

[0075] The rail transit vehicle and the wide-band transverse vibration damping device provided by the present application are described in detail above. The principles and implementation manners of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the method of the present application and its core idea. It should be noted that those skilled in the art can make some improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A broadband lateral vibration damping device, characterized by, The application relates to a vehicle suspension damping device, which comprises the following components: an elastic base (3) with a tail end connected to a suspension frame (1) and a head end abutting against a vehicle body (2), wherein the inside of the elastic base (3) is provided with a first liquid storage cavity (31) filled with magnetorheological liquid; a liquid storage device (4) with a second liquid storage cavity (41) communicated with the first liquid storage cavity (31); a reset component (9) for making the magnetorheological liquid in the second liquid storage cavity (41) flow back into the first liquid storage cavity (31) to fill the first liquid storage cavity (31); a damping adjuster (5) for generating magnetic fields with different intensities to adjust the viscosity of the magnetorheological liquid; an obtainer (6) for obtaining the lateral vibration frequency of the vehicle body (2); and a controller (7) connected to the obtainer (6) and the damping adjuster (5) to control the magnetic field intensity generated by the damping adjuster (5) according to the frequency signal of the obtainer (6) to adjust the damping of the elastic base (3). The elastic base (3) is arranged on the suspension frame (1) through a mounting component (8), the elastic base (3) is arranged on the mounting component (8), and the inside of the mounting component (8) is provided with a flow guide channel (81) with a first end communicated with the first liquid storage cavity (31) and a second end communicated with the second liquid storage cavity (41). The liquid storage device (4) is an elastic air bag, the reset component (9) is used for pushing the air bag to reset, the liquid storage device (4) is arranged on the mounting component (8), the flow guide channel (81) is an internal channel of the mounting component (8), and a liquid port of the flow guide channel (81) is connected to and communicated with the first liquid storage cavity (31) or the second liquid storage cavity (41). The reset component (9) has a high-pressure cavity (91), the air bag can be arranged in the high-pressure cavity (91) to be expanded or contracted, and the air bag is pushed to reset by high-pressure gas in the high-pressure cavity (91). The reset component (9) has an air inlet, the air inlet is used for filling gas into the high-pressure cavity (91), and a one-way valve (10) is arranged in the air inlet to prevent high-pressure gas in the high-pressure cavity (91) from flowing out through the air inlet. The elastic base (3) is arranged at a first end of the mounting component (8), and a second end of the mounting component (8) is connected to the suspension frame (1). The reset component (9) is a ring-shaped pipe body, the reset component (9) is sleeved and sealingly matched with the peripheral surface of the mounting component (8), the liquid storage device (4) is a ring-shaped air bag, and the liquid storage device (4) is sleeved with the peripheral surface of the mounting component (8) and the high-pressure cavity (91).

2. The broadband lateral vibration damping device of claim 1, wherein The flow guide channel (81) comprises a first total flow channel (811), a second total flow channel (812), a plurality of first branch flow channels (813) and a plurality of second branch flow channels (814). One end of each of the first branch flow channels (813) is communicated with the first liquid storage cavity (31), and the other end is communicated with the first total flow channel (811).

3. The wide-bandwidth lateral vibration damping device according to claim 2, wherein ​ ​ 4. The wide-bandwidth lateral vibration damping device according to claim 3, wherein ​ 5. The wide-bandwidth lateral vibration damping device of claim 4, wherein ​ 6. The wide-bandwidth lateral vibration damping device of claim 4, wherein ​ ​ 7. The wide-bandwidth lateral vibration damping device of claim 6, wherein ​ ​ One end of each of the second sub-flow passages (814) is communicated with the first total flow passage (811), and the other end is communicated with the second total flow passage (812); The second total flow passage (812) is communicated with the second liquid storage cavity (41).

8. The wide-bandwidth lateral vibration damping device of claim 7, wherein The elastic base (3) is in a circular truncated cone structure, the first liquid storage cavity (31) is a circular truncated cone cavity, the first liquid storage cavity (31) is located at the large-diameter end of the elastic base (3), the small-diameter end of the first liquid storage cavity (31) extends to the small-diameter end of the elastic base (3), and the center line of the first liquid storage cavity (31) is collinear with the center line of the elastic base (3). The mounting member (8) is in a cylindrical structure, and the center line of the mounting member (8) is collinear with the center line of the elastic base (3).

9. The wide-bandwidth lateral vibration damping device of claim 8, wherein The first sub-flow passage (813) and the second sub-flow passage (814) both extend along the axial direction of the mounting member (8), and the second total flow passage (812) extends along the radial direction of the mounting member (8); The first total flow passage (811) comprises a first flow convergence passage (8111), a second flow convergence passage (8112), and a connecting passage (8113), the first flow convergence passage (8111) and the second flow convergence passage (8112) both extend along the radial direction of the mounting member (8), the connecting passage (8113) extends along the axial direction of the mounting member (8), one end of the connecting passage (8113) is communicated with the end of the first flow convergence passage (8111), and the other end of the connecting passage (8113) is communicated with the end of the second flow convergence passage (8112); The first sub-flow passage (813) is communicated with the middle position of the first flow convergence passage (8111); The second sub-flow passage (814) is communicated with the middle position of the second flow convergence passage (8112) and the second total flow passage (812).

10. A rail transit vehicle, characterized by The wide-band transverse vibration damping device comprises the wide-band transverse vibration damping device according to any one of claims 1-9.

Images