CN213473125U - Equipment suspension structure with two-stage vibration reduction and rail vehicle - Google Patents
Equipment suspension structure with two-stage vibration reduction and rail vehicle Download PDFInfo
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- CN213473125U CN213473125U CN202022236350.1U CN202022236350U CN213473125U CN 213473125 U CN213473125 U CN 213473125U CN 202022236350 U CN202022236350 U CN 202022236350U CN 213473125 U CN213473125 U CN 213473125U
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Abstract
The utility model discloses an equipment suspension structure with two-stage damping function and a rail vehicle, which comprises an equipment main body, wherein at least one damping unit is arranged on the side surface of the equipment main body, and the damping unit comprises a connecting piece, a primary damper and a secondary rod-shaped damper; the primary shock absorber is arranged in the connecting piece, one end of the secondary rod-shaped shock absorber is connected with the primary shock absorber, and the other end of the secondary rod-shaped shock absorber is connected with the side face of the equipment main body. The utility model discloses a set up two-stage damping or vibration isolation and hang the mechanism, improve the damping and the vibration isolation ability of equipment under the rail vehicle car.
Description
Technical Field
The utility model relates to an equipment suspended structure and rail vehicle with two-stage damping.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
In order to reduce the adverse effect of the under-vehicle equipment on the safety and comfort of the vehicle body, the under-vehicle equipment of the railway vehicle such as the motor train unit and the like, particularly the equipment with larger mass or a vibration source, can adopt an elastic connection mode such as a rubber pile or a steel spring to inhibit the harmful vibration of the vehicle body and the equipment, and the representative structure of the shock absorber is shown in fig. 1, 2 and 3. The inventor finds that most of the existing shock absorbers belong to single-stage suspension systems, and can meet the shock isolation requirement of a vehicle body under the general condition, but the existing single-stage suspension systems cannot meet the shock isolation requirement of the system with larger vibration energy or the vehicle body needing to further improve the shock absorption effect.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model discloses a first discovery is to provide an equipment suspended structure with two-stage damping, improve the damping and the vibration isolation ability of equipment under the rail vehicle car. The rubber pile and the rod-shaped damper are combined to effectively reduce the adverse effect of vibration of the vehicle body and equipment. A second object of the present invention is to provide a rail vehicle comprising said device suspension with two-stage damping.
In order to achieve the above purpose, the present invention is realized by the following technical solution:
in a first aspect, an embodiment of the present invention provides an equipment suspension structure with two-stage vibration reduction, including an equipment main body, wherein at least one vibration reduction unit is arranged on a side surface of the equipment main body, and the vibration reduction unit includes a connecting piece, a first-stage vibration reducer, and a second-stage rod-shaped vibration reducer; the primary shock absorber is arranged in the connecting piece, one end of the secondary rod-shaped shock absorber is connected with the primary shock absorber, and the other end of the secondary rod-shaped shock absorber is connected with the side face of the equipment main body.
In combination with the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the damping units are disposed in a plurality, and the plurality of damping units form an array and are connected to a side of the apparatus main body.
In combination with the first aspect, embodiments of the present invention provide a second possible implementation manner of the first aspect, and the primary vibration absorber is a vibration damping block, and is fixed in the connecting member.
With reference to the first aspect, embodiments of the present invention provide a third possible implementation manner of the first aspect, and the vibration damping block is a rubber vibration damping block.
With reference to the first aspect, embodiments of the present invention provide a fourth possible implementation manner of the first aspect, and the primary damper is a steel spring damping member.
With reference to the first aspect, embodiments of the present invention provide a fourth possible implementation manner of the first aspect, where the secondary rod-shaped shock absorber is a rod-shaped damping shock absorber, a rod-shaped hydraulic shock absorber, a rod-shaped magnetic shock absorber, or a rod-shaped piezoelectric shock absorber.
In combination with the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the connecting member is an inverted trapezoid structure, and is provided with a connecting hole for connecting with a rail vehicle body.
In a second aspect, the embodiments of the present invention further provide a rail vehicle, which includes the above-mentioned device suspension structure with two-stage vibration damping.
As a further technical scheme, the connecting piece is connected with the railway vehicle body in a detachable connection or welding mode.
Above-mentioned the utility model discloses an embodiment's beneficial effect as follows:
1. the utility model discloses a set up two-stage damping or vibration isolation and hang the mechanism, improve the damping and the vibration isolation ability of equipment under the rail vehicle car.
2. The utility model discloses a rubber shock absorber and shaft-like attenuator combined action effectively reduce the adverse effect of automobile body and equipment vibration.
3. A parallel structure is formed among the multiple vibration reduction units, and the vibration reduction and isolation capacity of the equipment under the rail vehicle is further improved.
4. In order to improve the reliability of connection, the utility model discloses a connecting piece of every damping unit is the trapezoidal piece of an handstand, and the area at trapezoidal piece top is greater than the bottom area.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1, 2 and 3 are shock absorbers used in motor train units in the prior art.
Fig. 4 is a schematic diagram of a three-dimensional structure of a damping system according to the present invention;
fig. 5 is a side view of the damping system proposed by the present invention;
fig. 6 is a front view of the damping system according to the present invention;
fig. 7 is a top view of a damping system according to the present invention;
in the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the illustration is for illustrative purposes only.
1 device, 2 shock absorbers, 2-1 connecting pieces, 2-2 rubber shock absorbers and 2-3 rod-shaped dampers.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "upper", "lower", "front" and "rear" in the present application, if any, merely indicate that the device or element referred to has the same orientation, is constructed and operated in a particular orientation, and thus should not be construed as limiting the invention, except as to facilitate describing the invention and simplifying the description if any.
The terms "mounted", "connected" and "fixed" in the present invention should be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrated; the two elements may be connected directly or indirectly through an intermediate medium, or the two elements may be connected internally or in an interaction relationship, and those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific situation.
Just as the background art introduces, the application of current shock absorber mostly belongs to single-stage suspension, can satisfy the vibration isolation demand of automobile body under the general condition, but to the very big system of vibration energy, or want further improvement damping effect, single-stage suspension probably can't satisfy the damping demand, in order to solve above technical problem, the utility model provides an equipment suspended structure and rail vehicle with two-stage damping.
The utility model discloses an in the typical embodiment, as shown in fig. 4-7, among the equipment suspended structure with two-stage damping, including at least one damping unit, every damping unit includes the two-stage damping, and wherein one-level hangs the design and is the rubber elasticity structure, and another one-level is shaft-like damping vibration damping structure, and two-stage hangs vibration damping structure and constitutes the series system, realizes damping or vibration isolation effect between automobile body and equipment. Specifically, each vibration damping unit in the embodiment comprises a connecting piece 2-1, a rubber vibration damper 2-2 and a rod-shaped damper 2-3, wherein the rubber vibration damper 2-2 is arranged in the connecting piece 2-1, and the appearance and elastic suspension parameters of the rubber vibration damper 2-2 can be determined according to requirements; the connecting piece 2-1 is fixedly connected with the vehicle body, one end of the rod-shaped damper 2-3 is connected with the rubber shock absorber 2-2 through a shaft pin, and the other end of the rod-shaped damper is connected with the equipment shaft pin. The rubber shock absorber 2-3 is a rubber stack which is formed by vulcanizing rubber, and the bottom of the rubber stack is provided with a mounting seat which is connected with a connecting piece through a bolt. Two ends of the rod-shaped damper 2-3 are respectively provided with a connecting lug, the upper connecting lug is connected with the rubber pile through a pin shaft, the lower connecting lug is connected with the side surface of the equipment body through the pin shaft, the rod-shaped damper 2-3 is positioned between the connecting piece 2-1 and the equipment main body, and the connecting hole is arranged on the connecting piece 2-1 and used for being connected with a railway vehicle body.
Further, in order to realize the connection between the whole equipment suspension structure and the vehicle body, the connecting piece 2-1 is higher than the equipment main body.
Further, in order to improve the reliability of the connection, the connecting member 2-1 in this embodiment is an inverted trapezoid member, the trapezoid member is hollow inside for placing the rubber damper 2-3, the area of the top of the trapezoid member is larger than that of the bottom thereof, the top is provided with bolt holes, and the body of the rail vehicle is connected to the top of the connecting member 2-1. It will of course be appreciated that the connection member 2-1 may also be welded directly to the vehicle body.
Furthermore, the equipment itself needs to participate in the vibration reduction of the vehicle body, so that the equipment can realize a certain range of spatial motion, the motion amplitude of the equipment itself is related to the dynamic and static stiffness parameters of the two-stage vibration damper, the larger the dynamic and static stiffness parameter of the two-stage vibration damper is, the larger the motion amplitude of the equipment itself is, the smaller the dynamic and static stiffness parameter of the two-stage vibration damper is, and the smaller the motion amplitude of the equipment itself is.
Further, for a device with a large size and a large mass, a plurality of two-stage damping units may be disposed on the device, and the two-stage damping units are disposed on outer rings of the device respectively to form an array distribution. It will be understood that in other embodiments, other numbers and arrangements of damping units may be provided, and the number of damping units may be related to the size and mass of the equipment, with the larger the size and mass, the larger the number of damping units. The specific arrangement form is designed according to the structure of the railway vehicle body and the damping requirement.
Furthermore, the rubber shock absorbers 2-2 with different suspension stiffness and the rod-shaped shock absorbers 2-3 with different damping parameters can be arranged according to requirements, so that the overall balance and the optimal shock absorption effect are achieved.
Further, in other embodiments, the rubber damper 2-2 may be replaced by a steel spring damper.
Further, in other embodiments, the damping mechanisms of the rod-shaped dampers 2-3 may be hydraulic, electromagnetic, piezoelectric, etc., but the overall shape is rod-shaped.
Further, in this embodiment or other embodiments, a single damping unit forms a serial connection form, and a plurality of damping units form a parallel connection form, as shown in fig. 4, 6 damping units in this embodiment are connected in parallel to form a parallel connection structure.
In addition, the embodiment also provides a railway vehicle, the bottom of the vehicle body of the railway vehicle is provided with the equipment suspension structure with two-stage vibration reduction, and the connecting piece 2-1 of the equipment suspension structure is connected with the vehicle body through a bolt or a screw or is welded.
Furthermore, in other embodiments, the equipment needs a certain range of motion space, the main motion track is in the vertical direction and the vehicle running direction, if the motion amplitude needs to be limited, a limiting device can be arranged on the vehicle body, adverse effects caused by overlarge motion amplitude of the equipment are avoided, and the motion amplitude of the equipment is related to the dynamic and static stiffness parameters of the two-stage shock absorber.
The utility model discloses a set up two-stage damping or vibration isolation and hang the mechanism, improve the damping and the vibration isolation ability of equipment under the rail vehicle car. The rubber pile and the rod-shaped damper are combined to effectively reduce the adverse effect of vibration of the vehicle body and equipment.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A device suspension structure with two-stage vibration reduction is characterized by comprising a device main body, wherein at least one vibration reduction unit is arranged on the side surface of the device main body, and the vibration reduction unit comprises a connecting piece, a primary vibration reducer and a secondary rod-shaped vibration reducer; the primary vibration absorber is arranged in the connecting piece, one end of the secondary rod-shaped vibration absorber is connected with the primary vibration absorber, and the other end of the secondary rod-shaped vibration absorber is connected with the side face of the equipment main body.
2. The apparatus suspension structure having two-stage vibration damping according to claim 1, wherein a plurality of said vibration damping units are provided, and said plurality of vibration damping units are connected to a side surface of the apparatus body in an array.
3. The plant suspension structure with two-stage damping according to claim 1, wherein said one-stage damper is a rubber mass or a steel spring damper fixed in the connecting member.
4. The plant suspension with two-stage damping as defined in claim 1 wherein said secondary rod dampers are rod damper dampers, rod hydraulic dampers, rod magnetic dampers or rod piezoelectric dampers.
5. The apparatus suspension having two-stage damping of claim 1, wherein said connecting member is an inverted trapezoidal structure.
6. The plant suspension structure with two-stage damping according to claim 1 or 5, wherein said connecting member is provided with a connecting hole.
7. The plant suspension structure with two-stage damping according to claim 1 or 5, wherein the top of the connection piece is higher than the plant body.
8. A rail vehicle comprising a device suspension with two-stage damping according to any one of claims 1 to 7.
9. The rail vehicle of claim 8, wherein the connector is removably attachable to the rail vehicle body.
10. The rail vehicle of claim 8, wherein the connecting member is welded to the rail vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022236350.1U CN213473125U (en) | 2020-10-09 | 2020-10-09 | Equipment suspension structure with two-stage vibration reduction and rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022236350.1U CN213473125U (en) | 2020-10-09 | 2020-10-09 | Equipment suspension structure with two-stage vibration reduction and rail vehicle |
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| CN213473125U true CN213473125U (en) | 2021-06-18 |
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| CN202022236350.1U Active CN213473125U (en) | 2020-10-09 | 2020-10-09 | Equipment suspension structure with two-stage vibration reduction and rail vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023082673A1 (en) * | 2021-11-09 | 2023-05-19 | 中车株洲电力机车有限公司 | Elastic suspended mounting structure for heavy-duty apparatus under rail vehicle |
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2020
- 2020-10-09 CN CN202022236350.1U patent/CN213473125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023082673A1 (en) * | 2021-11-09 | 2023-05-19 | 中车株洲电力机车有限公司 | Elastic suspended mounting structure for heavy-duty apparatus under rail vehicle |
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