Braking module and railway vehicle having the same, method of mounting

Abstract

A kind of brake module and the rail vehicle with it, installation method, brake module includes air source module, air cylinder module, installation hanger, the installation hanger includes: a pair of main girder is arranged at intervals, first joist group to be used to fix air source module on a pair of main girder, second joist group to be used to fix air cylinder module on a pair of main girder, the first joist group, the second joist group along the extension direction of the main girder arrangement;The main girder has first mounting point to be used to connect with rail vehicle, and the first mounting point is located between first joist group, second joist group;And / or the second joist group includes at least one second joist, and the second joist has second mounting point to be used to connect with rail vehicle, and the second mounting point is located between a pair of main girders.By first mounting point, second mounting point, the probability of resonance of brake module and running vehicle is greatly weakened or reduced, and risk is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle technology, in particular to a brake module, a railway vehicle having the same and a mounting method. BACKGROUND

[0002] The underframe of a railway vehicle is often equipped with many functional components, such as brake control equipment (also referred to as a brake module), traction converter equipment, etc. Such equipment is prone to resonance caused by the compressor and other equipment of the vehicle vibration and frequency vibration, resulting in adverse consequences.

[0003] During the running of the railway vehicle, the brake module is subjected to regular frequency impact and vibration, which may cause resonance. If resonance occurs, the brake module installation may fail to fall off and deform, etc., exceeding the gauge of the vehicle, causing injury to equipment or personnel outside the gauge, and affecting the safe operation of the vehicle.

[0004] Therefore, it is necessary to provide an improved brake module, a railway vehicle having the same and a mounting method to reduce the harm caused by resonance. SUMMARY

[0005] The purpose of the present application is to provide a brake module that can weaken or reduce resonance with a running vehicle to some extent, a railway vehicle having the same and a mounting method.

[0006] To achieve one of the above-mentioned purposes, the present application adopts the following technical solutions:

[0007] A brake module, comprising a wind source module, a wind cylinder module, and a mounting hanger for mounting the wind source module and the wind cylinder module, the mounting hanger comprising:

[0008] a pair of main beams arranged at intervals;

[0009] a first group of joists for fixing the wind source module to the pair of main beams;

[0010] a second group of joists for fixing the wind cylinder module to the pair of main beams, the first group of joists and the second group of joists being arranged along the extension direction of the main beams;

[0011] wherein the main beams have a first mounting point for connecting with the railway vehicle, the first mounting point being located between the first group of joists and the second group of joists; and / or the second group of joists comprises at least one second joist, the second joist having a second mounting point for connecting with the railway vehicle, the second mounting point being located between the pair of main beams.

[0012] Further, the first mounting point is located at the middle of the main beam between the first group of joists and the second group of joists.

[0013] Further, the distance from the first mounting point to the first joist group is greater than the distance from the first mounting point to the second joist group; or the distance from the first mounting point to the first joist group is less than the distance from the first mounting point to the second joist group.

[0014] Further, the distance from the second mounting point to one end of the second joist is 1 / 3-2 / 3 of the length of the second joist.

[0015] Further, the angle between the line connecting the center of gravity of the air cylinder module and the second mounting point and the second joist is 80-90°.

[0016] Further, the mounting hanger further comprises a fixing structure for connecting the main beam or the second joist to the rail vehicle, the fixing structure comprising a steel structure support and an elastic pad.

[0017] Further, the steel structure support comprises a first fixing member for fixing to the rail vehicle, a transfer member connected to the first fixing member, and a second fixing member for fixing the main beam or the second joist to the transfer member; the elastic pad is located at the connection between the first fixing member and the transfer member.

[0018] Further, the transfer member comprises a transfer plate for fixing to the first fixing member, and two extension plates extending downward from the two side edges of the transfer plate; the second fixing member comprises a fixing plate for fixing to the two extension plates, and a pressing plate connected to the two fixing plates and used for pressing the main beam or the second joist; the pressing plates of the two second fixing members press the main beam or the second joist from the top and bottom sides; the elastic pad comprises a first elastic pad between the transfer plate and the first fixing member, and a second elastic pad on the side of the transfer plate away from the first elastic pad.

[0019] Further, the main beam further has hoisting points at both ends thereof for connecting to the rail vehicle, and the main beam comprises a top wall, a bottom wall, and at least one connecting wall connecting the top wall and the bottom wall; the top wall, the bottom wall, and the connecting wall form a receiving cavity;

[0020] The two ends of the first joist are respectively fixed in the receiving cavities of the pair of main beams, and the air source module is located below the first joist;

[0021] The two ends of the second joist are respectively fixed in the receiving cavities of the pair of main beams, and the air cylinder module is located below the second joist.

[0022] A rail vehicle comprising the brake module, wherein the brake module is fixed to the bottom of the rail vehicle.

[0023] A mounting method of a brake module, comprising the following steps:

[0024] acquire actual vibration frequencies at a plurality of test points on the brake module, the plurality of test points including at least one point on a first group of joists used to fix the wind source module on a pair of main beams, and at least one point on a second group of joists used to fix the wind cylinder module on the pair of main beams;

[0025] determine whether the wind source module and the wind cylinder module are passive vibration modules according to the actual vibration frequencies at the plurality of test points, if yes, set a first mounting point on a region between the first group of joists and the second group of joists on the main beams to block the vibration transmission of other modules from affecting the vibration of the module, and / or set a second mounting point on the joist used to fix the passive vibration module to strengthen the fixation of the module, the second mounting point being between the pair of main beams; if no, maintain the structural design of the mounting hanger.

[0026] Further, determine whether the difference between the actual vibration frequency and the theoretical frequency is not less than a threshold value, if yes, the module is a passive vibration module; if no, the module is an active vibration module.

[0027] Further, set the first mounting point on a region between the first group of joists and the second group of joists on the main beams, and / or set the second mounting point on the second joist.

[0028] Further, the first mounting point is located at the middle of the main beam between the first group of joists and the second group of joists.

[0029] Further, the second mounting point is located at a distance of 1 / 3 to 2 / 3 of the length of the second joist from one end of the second joist.

[0030] Further, the angle between the line connecting the center of gravity of the wind cylinder module and the second mounting point and the second joist is 80° to 90°.

[0031] Compared with the prior art, the present application has the beneficial effects that: by setting the first mounting point used to connect with the rail vehicle on the main beam, the vibration transmission of the wind source module to the wind cylinder module is greatly weakened or blocked; and / or, by setting the second mounting point used to connect with the rail vehicle on the second joist, the installation strength of the wind cylinder module is enhanced; thereby greatly weakening or blocking the vibration of the brake module, reducing the probability of resonance between the brake module and the running vehicle, and reducing the risk. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a top view of a brake module and a mounting hanger according to an embodiment of the present application;

[0033] Figure 2 is Figure 1 is a schematic view of the bottom slot frame of the rail vehicle cooperating with the brake module after removing the wind source module;

[0034] Figure 3 is Figure 2 The cooperation schematic view of the air cylinder module, the second joist and the bottom groove frame;

[0035] Figure 4 is Figure 3 The cooperation schematic view of the air cylinder module, the second joist and the bottom groove frame;

[0036] Figure 5 is Figure 4 The partial enlarged view of the air cylinder module;

[0037] Figure 6 The schematic view of the selected test points in a preferred embodiment of the present application;

[0038] Figure 7 The schematic view of the first installation point and the second installation point added on the installation hanger in a preferred embodiment of the present application.

[0039] Wherein, 100 - brake module, 1 - air source module, 2 - air cylinder module, 3 - installation hanger, 31 - main beam, 311 - first installation point, 312 - hoisting point, 32 - first joist, 33 - second joist, 331 - second installation point, 34 - fixed structure, 35 - steel structure support, 351 - first fixing part, 352 - transfer part, 353 - second fixing part, 36 - elastic pad, 200 - bottom groove frame. DETAILED DESCRIPTION

[0040] The present application will be described in detail below with reference to the specific embodiments shown in the drawings. However, these embodiments do not limit the present application, and the structural, method or functional changes made by those skilled in the art based on these embodiments are included in the protection scope of the present application.

[0041] In various views of the present application, the size of some structures or parts may be enlarged relative to other structures or parts for the convenience of illustration, and therefore, only the basic structure of the subject of the present application is used for illustration.

[0042] For the convenience of description, the terms representing spatial relative positions, such as "upper", "lower", etc., are used to describe the relationship of one unit or feature relative to another unit or feature shown in the drawings.

[0043] Please refer to Figures 1 to 7 The present application aims to solve the resonance problem of the brake module 100 located below the rail vehicle, which includes but is not limited to urban rail transit vehicles and intercity rail transit vehicles. For the convenience of description, the length direction of the rail vehicle is consistent with the running direction of the vehicle, which is recorded as the first direction; the width direction of the rail vehicle is perpendicular to the running direction of the vehicle, which is recorded as the second direction.

[0044] The frequency of the vehicle operation is usually 5-20 Hz, and according to the requirement of IEC61373, the inherent frequency of the on-board equipment should avoid this range. The brake module 100 is installed by a hoisting structure under the vehicle, and thus the overall inherent frequency of the brake module 100 should be designed to be not less than 25 Hz. The present application effectively solves the vibration resonance condition by changing the installation hoist 3.

[0045] Specifically, the brake module 100 comprises a wind source module 1, a wind cylinder module 2, and an installation hoist 3 for installing the wind source module 1 and the wind cylinder module 2. The installation hoist 3 installs the wind source module 1 and the wind cylinder module 2 under the rail vehicle, preferably on the bottom channel frame 200 at the bottom of the rail vehicle.

[0046] The installation hoist 3 comprises a pair of main beams 31 arranged at intervals, a first joist group for fixing the wind source module 1 on the main beams 31, and a second joist group for fixing the wind cylinder module 2 on the main beams 31. The first joist group and the second joist group are arranged along the extension direction of the main beams 31, and thus the wind source module 1 and the wind cylinder module 2 are arranged adjacent along the extension direction of the main beams 31.

[0047] The main beams 31 are used to fix the entire brake module 100 on the top of the rail vehicle, for example, both ends thereof are provided with hoisting points 312 for connecting with the rail vehicle. Specifically, the main beams 31 comprise a top wall, a bottom wall, and at least one connecting wall connecting the top wall and the bottom wall. The top wall, the bottom wall, and the connecting wall form a receiving cavity, which facilitates the installation of the first joist group and the second joist group.

[0048] The first joist group comprises at least one first joist 32, for example Figures 2 to 4 The first joist group comprises two first joists 32. Both ends of the first joist 32 are fixed in the receiving cavities of the pair of main beams 31, and the wind source module 1 is located below the first joist 32. Of course, the first joist group can also comprise at least three first joists 32 arranged at intervals along the extension direction of the main beams 31.

[0049] The second joist group comprises at least one second joist 33, for example Figures 2 to 4 The second joist group comprises two second joists 33. Both ends of the second joist 33 are fixed in the receiving cavities of the pair of main beams 31, and the wind cylinder module 2 is located below the second joist 33. Of course, the second joist group can also comprise at least three second joists 33 arranged at intervals along the extension direction of the main beams 31.

[0050] Furthermore, the main beams 31 extend along a second direction, and the first joists 32 and the second joists 33 extend along a first direction, and the mutually perpendicular structure makes the installation hoist 3 more stable.

[0051] The inventor found that the air source module 1 has an air compressor as a vibration source, which will vibrate by itself during the operation of the vehicle. The air cylinder module 2 does not carry a vibration source, but its actual vibration frequency is greater than the theoretical vibration frequency, so the mounting point of the mounting bracket 3 is adjusted to change the vibration frequency of the entire brake module 100.

[0052] In the first type of embodiment, the main beam 31 has a first mounting point 311 for connecting with the rail vehicle, and the first mounting point 311 is located between the first and second joist groups, which can effectively reduce the transmission of vibration of the air source module 1 to the air cylinder module 2, greatly weaken the resonance caused by the passive vibration of the air cylinder module 2, and change the frequency of the entire brake module 100.

[0053] In a preferred embodiment, the first mounting point 311 is located at the middle of the main beam 31 between the first and second joist groups, that is, the distance from the first mounting point 311 to the first joist group is equal to the distance from the first mounting point 311 to the second joist group. In this scheme, the point with the strongest vibration on the main beam 31 is fixed, and the effect of blocking vibration transmission is good.

[0054] In another preferred embodiment, the distance from the first mounting point 311 to the first joist group is greater than the distance from the first mounting point 311 to the second joist group, which can effectively reduce the vibration amplitude of the air source module 1 while blocking vibration transmission.

[0055] In another preferred embodiment, the distance from the first mounting point 311 to the first joist group is less than the distance from the first mounting point 311 to the second joist group, which can improve the connection force of the air cylinder module 2 and the bottom slot frame 200 of the rail vehicle while blocking vibration transmission.

[0056] As understood by those skilled in the art, the first and second joist groups refer to the middle of the two joist groups and between the first and second joists 32 and 33 arranged adjacent to each other. The distance from the first mounting point 311 to the first joist group refers to the distance from the first mounting point 311 to the first joist 32 close to the second joist group; and the distance from the first mounting point 311 to the second joist group refers to the distance from the first mounting point 311 to the second joist 33 close to the first joist group.

[0057] In the second type of embodiment, the second joist 33 has a second mounting point 331 for connecting with the rail vehicle, and the second mounting point 331 is located between a pair of main beams 31, which can effectively reduce the vibration of the air cylinder module 2 and change its natural frequency.

[0058] Preferably, the second mounting point 331 is located at a distance of 1 / 3 to 2 / 3 of the length of the second joist 33 from one end of the second joist 33, and is fixed in the 1 / 3 region in the middle, which can greatly change the natural frequency and weaken or reduce resonance with the rail vehicle.

[0059] Further, the angle between the line connecting the center of gravity of the air cylinder module 2 and the second mounting point 331 and the second joist 33 is 80° to 90°, that is, the second mounting point 331 is located in the region on the second joist 33 corresponding to the center of gravity of the air cylinder module 2. Preferably, the center of gravity of the air cylinder module 2 is perpendicular to the second joist 33, and the intersection point thereof is the second mounting point 331. Of course, the selection of the second mounting point 331 allows for installation errors, necessary distance for the surrounding installation space, and position deviation caused by center of gravity measurement errors.

[0060] The third type of embodiment is a combination of the first two types of embodiments, that is, the main beam 31 has the first mounting point 311, and the second joist 33 also has the second mounting point 331, which work together to further reduce the vibration frequency and avoid resonance.

[0061] In addition, in order to reduce the vibration of the entire brake module 100 to the rail vehicle, the application preferably uses a fixing structure 34 with a damping function to fix the first mounting point 311 of the main beam 31 or the second mounting point 331 of the second joist 33 to the bottom slot frame 200 of the rail vehicle.

[0062] As shown in Figures 2 to 7 Other fixing structures 34' can also be used for fixing. The fixing structure 34 and the fixing structure 34' are shown in the figure to illustrate the forms of fixing structures that can be used and the positions that can be fixed, and not all of them are required to be fixed at the same time in practice.

[0063] The fixing structure 34 with a damping function preferably includes a steel structure support 35 and an elastic pad 36. The steel structure support 35 can enhance the bonding strength and improve the installation stability, and the elastic pad 36, which can be a rubber pad, can play a buffering role and to a certain extent, block the transmission of vibration.

[0064] The steel structure support 35 includes a first fixing member 351 for fixing to the rail vehicle, a transfer member 352 connected to the first fixing member 351, and a second fixing member 353 for fixing the main beam 31 or the second joist 33 to the transfer member 352. The elastic pad 36 is located at the connection between the first fixing member 351 and the transfer member 352.

[0065] The intermediate piece 352 comprises an intermediate plate for fixing with the first fixing piece 351, and extension plates extending downward from two side edges of the intermediate plate, and the second fixing piece 353 is used for fixing the main beam 31 or the second joist 33 on a pair of the extension plates.

[0066] The second fixing piece 353 comprises a fixing plate for fixing with a pair of the extension plates, and a holding plate connected with the pair of the fixing plates and used for holding the main beam 31 or the second joist 33. The two holding plates of the pair of the second fixing piece 353 hold the main beam 31 or the second joist 33 from the top and bottom sides, and fix the main beam 31 or the second joist 33.

[0067] The elastic pad 36 comprises a first elastic pad between the intermediate plate and the first fixing piece 351, and a second elastic pad on the side of the intermediate plate away from the first elastic pad, which can effectively reduce the transmission of the vibration of the brake module 100 below to the rail vehicle above.

[0068] During the fixing, a fastener such as a screw can be used to pass through the second elastic pad, the main beam 31 or the second joist 33, the first elastic pad, the bottom channel frame 200 of the rail vehicle, or pass through the above-mentioned components in the reverse direction.

[0069] The application also provides a mounting method of the brake module, which comprises the following steps:

[0070] The mounting method of the brake module comprises the following steps based on the structure of the brake module:

[0071] The actual vibration frequencies of a plurality of test points on the brake module 100 are obtained, and the plurality of test points comprise at least one point on the first joist group for fixing the air source module 1 on a pair of the main beams 31, and at least one point on the second joist group for fixing the air cylinder module 2 on the pair of the main beams 31.

[0072] According to the actual vibration frequencies of the plurality of test points, it is determined whether there is a passive vibration module in the air source module 1 or the air cylinder module 2. If yes, the first mounting point 311 is arranged on the region of the main beam 31 between the first joist group and the second joist group, so as to block the transmission of the vibration of other modules to the passive vibration module and affect the vibration of the passive vibration module; and / or the second mounting point 331 is arranged on the joist for fixing the passive vibration module, so as to strengthen the fixation of the passive vibration module, and the second mounting point 331 is located between a pair of the main beams 31; if no, the structure design of the mounting hanger 3 is maintained, and no additional mounting point is needed.

[0073] In the present invention, it is determined whether the difference between the actual vibration frequency and the theoretical frequency is not less than a threshold value. If so, it is a passive vibration module; if not, it is an active vibration module.

[0074] In a specific embodiment, please refer to Figure 6 As shown, several test points include: the installation points 1a~1d of the wind source module and the first joist 32; the connection points 2a~2d of the first joist 32 and the main beam 31; the connection points 3a~3d of the second joist 33 and the main beam 31; and the middle points 4a~4b in the length direction of the second joist 33.

[0075] According to the test, the actual output vibration frequency of the wind source module 1 is basically consistent with the theoretical frequency; while the natural frequency of the air cylinder module 2 in different directions is 25Hz~30Hz, and the difference from the vibration frequency of the air cylinder module 2 itself is greater than the threshold, indicating that it is affected by the vibration of the adjacent wind source module 1 and is a passive vibration module.

[0076] Therefore, please refer to Figure 7 As shown, the present invention provides the first mounting point 311 on the main beam 31 and / or the second mounting point 331 on the second joist 33. Furthermore, the position of the first mounting point 311 on the main beam 31 is the same as that of the first embodiment, and the position of the second mounting point 331 on the second joist 33 is the same as that of the second embodiment, and thus will not be further described herein.

[0077] Furthermore, based on the structure of the mounting bracket 3 described above, it can be simplified as a simply supported beam. The natural frequency of a simply supported beam is directly related to its length and height. The length of the mounting bracket 3 is determined by the bottom structure of the rail vehicle and the brake module 100 to be fixed, and its height is adaptively adjusted based on the length.

[0078] The present invention also provides a rail vehicle, the bottom of which is provided with any of the above-mentioned brake modules 100. The brake module 100 is fixed to the bottom of the rail vehicle by adding the first mounting point 311 and / or the second mounting point 331 on the mounting hanger, which can effectively weaken or reduce the resonance with the vibration during vehicle operation.

[0079] By setting the first mounting point 311 for connecting with the rail vehicle on the main beam 31, the vibration of the air source module 1 is greatly weakened or blocked from being transmitted to the air cylinder module 2; and / or, by setting the second mounting point 331 for connecting with the rail vehicle on the second joist 33, the mounting strength of the air cylinder module 2 is enhanced; thereby changing the inherent frequency of the equipment mounting hanger to resist the excitation of the air cylinder module 2 by the air source module 1 containing the excitation source, greatly weakening or blocking the vibration of the brake module 100, achieving the problem solving, reducing the probability of resonance between the brake module 100 and the running vehicle, and reducing the risk.

[0080] The above series of detailed descriptions are only specific descriptions of the feasible embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent embodiments or changes made without departing from the spirit of the present application shall be included in the protection scope of the present application.

Claims

1. A brake module, comprising an air source module and an air cylinder module, characterized in that: The brake module further includes a mounting bracket for mounting the air source module and the air cylinder module, and the mounting bracket includes: A pair of main beams set at intervals; A first support beam group, used for fixing the wind source module on a pair of main beams; A second joist group is used to fix the air cylinder module on a pair of main beams, and the first joist group and the second joist group are arranged along the extension direction of the main beams; In which; the main beam has a first mounting point for connecting to the rail vehicle, and the first mounting point is located between the first joist group and the second joist group; and / or the second joist group includes at least one second joist, and the second joist has a second mounting point for connecting to the rail vehicle, and the second mounting point is located between a pair of main beams; the distance between the second mounting point and one end of the second joist is 1 / 3 to 2 / 3 of the length of the second joist; the angle between the line connecting the center of gravity of the air cylinder module and the second mounting point and the second joist is 80° to 90°.

2. The brake module according to claim 1, characterized in that The first mounting point is located in the middle of the main beam between the first joist group and the second joist group.

3. The brake module according to claim 1, characterized in that The distance from the first mounting point to the first joist group is greater than the distance from the first mounting point to the second joist group; or the distance from the first mounting point to the first joist group is less than the distance from the first mounting point to the second joist group.

4. The brake module according to claim 1, characterized in that The mounting bracket further includes a fixing structure for connecting the main beam or the second supporting beam to the rail vehicle, wherein the fixing structure includes a steel structure bracket and an elastic pad.

5. The brake module according to claim 4, characterized in that The steel structure support includes a first fixing member for fixing to the rail vehicle, a transfer member connected to the first fixing member, and a second fixing member for fixing the main beam or the second supporting beam to the transfer member; The elastic pad is located at the connection between the first fixing member and the transfer member.

6. The brake module according to claim 5, characterized in that The transfer member includes a transfer plate for fixing to the first fixing member, and extension plates extending downward from two opposite side edges of the transfer plate; The second fixing member includes a fixing plate for fixing to the pair of extension plates, and a supporting plate connected to the pair of fixing plates and used to support the main beam or the second joist, and the supporting plates of the pair of second fixing members clamp the main beam or the second joist from upper and lower sides; The elastic pad includes a first elastic pad located between the transfer plate and the first fixing member, and a second elastic pad located on a side of the transfer plate away from the first elastic pad.

7. The brake module according to claim 1, characterized in that The main beam further has lifting points at both ends thereof for connection with the rail vehicle, and the main beam includes a top wall, a bottom wall, and at least one connecting wall connecting the top wall and the bottom wall; the top wall, the bottom wall, and the connecting wall form a receiving cavity; The two ends of the first joist are respectively fixed in the receiving cavities of the pair of main beams, and the wind source module is located below the first joist; Two ends of the second joist are respectively fixed in the receiving cavities of a pair of main beams, and the air cylinder module is located below the second joist.

8. A rail vehicle, characterized in that: The brake module comprises the brake module according to any one of claims 1 to 7, wherein the brake module is fixed to the bottom of the rail vehicle.

9. A method for installing a brake module according to any one of claims 1 to 7, characterized in that: The steps include: Obtaining actual vibration frequencies at a plurality of test points on the brake module, the plurality of test points including at least one point on a first joist group used to secure the air source module to a pair of main beams, and at least one point on a second joist group used to secure the air cylinder module to the pair of main beams; Based on the actual vibration frequencies at several test points, determine whether there is a passive vibration module in the wind source module and the air cylinder module. If so, set a first installation point in the area between the first support beam group and the second support beam group on the main beam, and / or set a second installation point on the support beam used to fix the passive vibration module, and the second installation point is located between a pair of main beams; if not, there is no need to add additional installation points.

10. The installation method according to claim 9, characterized in that: It is determined whether the difference between the actual vibration frequency and the theoretical frequency is not less than a threshold value. If so, it is a passive vibration module; if not, it is an active vibration module.

11. The installation method according to claim 9, characterized in that: The air cylinder module is a passive vibration module, and the first installation point is set on the main beam in the area between the first joist group and the second joist group, and / or the second installation point is set on the second joist.

12. The installation method according to claim 11, characterized in that: The first mounting point is located in the middle of the main beam between the first joist group and the second joist group.

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