CN114278696A - Steering damper of railway vehicle bogie - Google Patents
Steering damper of railway vehicle bogie Download PDFInfo
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- CN114278696A CN114278696A CN202111619123.XA CN202111619123A CN114278696A CN 114278696 A CN114278696 A CN 114278696A CN 202111619123 A CN202111619123 A CN 202111619123A CN 114278696 A CN114278696 A CN 114278696A
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- valve
- adjusting unit
- valve seat
- damping
- hydraulic lock
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Abstract
The invention discloses a steering damper of a railway vehicle bogie, which comprises a valve seat, wherein a first damping adjusting unit, a second damping adjusting unit and a hydraulic lock are arranged on the valve seat, the hydraulic lock is positioned between the first damping adjusting unit and the second damping adjusting unit, an oil tank is arranged in the valve seat, an oil cylinder is also arranged on the valve seat, a piston rod is arranged on the oil cylinder, a displacement sensor is arranged on the piston rod, an electromagnetic reversing valve and a hydraulic pump are connected between the hydraulic lock and the oil tank, a motor is arranged on one side of the hydraulic pump, and a first check valve and a second check valve which are positioned on two sides of the hydraulic lock are respectively arranged on the valve seat; the invention can be applied to various rail transit vehicles, plays a role of anti-snaking shock absorber when the vehicle runs on a straight rail, provides active acting force between the bogie and the vehicle body when the vehicle runs on a curved rail, and is used for reducing the lateral acting force between the rim of the bogie and the rail, thereby reducing the abrasion between the rim and the rail and improving the traction performance of the vehicle.
Description
Technical Field
The invention relates to the technical field of rail transit vehicle suspension, in particular to a steering damper of a rail vehicle bogie.
Background
The anti-snake motion vibration absorber product is widely applied to the suspension field of rail transit vehicles, is arranged between a bogie and a vehicle body, and is used for attenuating high-frequency and low-frequency nodding and swinging vibration caused by unsmooth tracks in the running process of the vehicles. With the continuous improvement of the running speed of the rail transit vehicle, when the vehicle passes through a curve, the lateral acting force between the flange of the bogie and a rail is larger and larger, the abrasion of the flange and the rail is intensified, the wheel set turning wheel and the rail grinding cost are increased, the service life of the wheel set and the rail of the vehicle is influenced, and the vehicle traction performance is influenced. The common anti-snake motion shock absorber cannot meet the requirement that a high-speed vehicle passes through a curve.
Based on this, a solution is now proposed.
Disclosure of Invention
The invention aims to provide a steering damper of a railway vehicle bogie, aiming at solving the technical problems in the background technology.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a rail vehicle bogie steering damper, which comprises a valve seat, install damping adjusting unit one on the disk seat, damping adjusting unit two and hydraulic pressure lock, the hydraulic pressure lock is located between damping adjusting unit one and the damping adjusting unit two, the disk seat embeds there is the oil tank, still install the hydro-cylinder on the disk seat, be provided with the piston rod on the hydro-cylinder, be provided with displacement sensor on the piston rod, be connected with electromagnetic directional valve and hydraulic pump between hydraulic pressure lock and the oil tank, one side of hydraulic pump is provided with the motor, install check valve one and the check valve two that are located the hydraulic pressure lock both sides on the disk seat respectively, install overflow valve one and overflow valve two that are located the hydraulic pressure lock both sides on the disk seat respectively.
As a further scheme of the invention: the first damping adjusting unit and the second damping adjusting unit are both formed by connecting a throttle valve and an unloading valve in parallel.
As a further scheme of the invention: the unloading valves are arranged in a plurality according to unloading pressure gradient.
As a further scheme of the invention: the shock absorber has two working modes of generating passive damping force and active acting force.
As a further scheme of the invention: when the working mode of generating active acting force is in, the hydraulic lock is opened, and when the working mode of generating passive damping force is in, the hydraulic lock is closed.
As a further scheme of the invention: the electromagnetic change valve adopts a three-position four-way change valve with an H-shaped median function.
The invention has the beneficial effects that:
the active rotary shock absorber can be applied to various rail transit vehicles, plays a role of a snake-proof shock absorber when a straight rail runs, provides active acting force between a bogie and a vehicle body when a curved rail runs, and is used for reducing lateral acting force between a bogie rim and a rail, so that the abrasion between the rim and the rail is reduced, and the vehicle traction performance is improved.
A displacement sensor is arranged in the active rotary shock absorber, the vehicle can be detected to be in straight line running or left-turning and right-turning, the working mode corresponding to three road conditions is realized by adopting a three-position four-way electromagnetic directional valve to select a hydraulic loop of a switching system according to the hydraulic principle design, a damping adjusting unit is arranged to adjust passive damping force, an electric pump is used to provide active acting force, and an overflow valve is used to set the active acting force.
The corresponding working mode can be selected according to the actual line working condition of the vehicle; the passive damping force and the active acting force are easy to adjust; the integral integration level is high, the installation is convenient, and the anti-snaking shock absorber can be replaced.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the principles of the present invention;
FIG. 2 is a schematic view of the connection of the valve seat, the second damping adjustment unit and the motor of the present invention.
In the figure: 1. an oil cylinder; 2. a first overflow valve; 3. an overflow valve II; 4. a one-way valve I; 5. a second one-way valve; 6. a first damping adjusting unit; 7. a second damping adjusting unit; 8. hydraulic locking; 9. an electromagnetic directional valve; 10. a motor; 11. a hydraulic pump; 12. an oil tank; 13. a piston rod; 14. a cylinder body; 15. a displacement sensor; 16. a throttle valve; 17. an unloading valve; 18. a valve seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the invention relates to a steering damper of a railway vehicle bogie, which comprises a valve seat 18, wherein a first damping adjusting unit 6, a second damping adjusting unit 7 and a hydraulic lock 8 are mounted on the valve seat 18, the hydraulic lock 8 is positioned between the first damping adjusting unit 6 and the second damping adjusting unit 7, an oil tank 12 is arranged in the valve seat 18, an oil cylinder 1 is further mounted on the valve seat 18, a piston rod 13 is arranged on the oil cylinder 1, a displacement sensor 15 is arranged on the piston rod 13, an electromagnetic directional valve 9 and a hydraulic pump 11 are connected between the hydraulic lock 8 and the oil tank 12, a motor 10 is arranged on one side of the hydraulic pump 11, a first check valve 4 and a second check valve 5 which are positioned on two sides of the hydraulic lock 8 are respectively mounted on the valve seat 18, and a first overflow valve 2 and a second overflow valve 3 which are positioned on two sides of the hydraulic lock 8 are respectively mounted on the valve seat 18.
The first damping adjusting unit 6 and the second damping adjusting unit 7 are formed by connecting a throttle valve 16 and an unloading valve 17 in parallel, a plurality of unloading valves 17 are arranged according to unloading pressure gradient and are used for meeting the damping characteristic requirements of a plurality of speed points, the unloading valves 17 can be arranged externally and can be adjusted, the unloading pressure is adjusted by adjusting the compression amount of a spring, and the damping force on-line debugging device can be used for actively debugging the damping force of the rotary shock absorber.
The steering shock absorber consists of an oil cylinder 1, a first overflow valve 2, a second overflow valve 3, a first check valve 4, a second check valve 5, a first damping adjusting unit 6, a second damping adjusting unit 7, a hydraulic lock 8, an electromagnetic directional valve 9, a motor 10, a hydraulic pump 11 and an oil tank 12; a displacement sensor 15 is integrated between the piston rod 13 and the bottom of the cylinder 14; the first overflow valve 2, the second overflow valve 3, the first check valve 4, the second check valve 5, the first damping adjusting unit 6, the second damping adjusting unit 7, the hydraulic lock 8, the electromagnetic directional valve 9, the motor 10, the hydraulic pump 11 and the oil tank 12 are integrated on a valve seat 18, and the valve seat 18 is connected to the oil cylinder 1. It has the following functions: when the vehicle runs in a straight line, passive damping force is provided between the bogie and the vehicle, and the passive damping force is used for damping high-frequency and low-frequency vibration between the bogie and the vehicle; when a vehicle enters a curve to run, an active acting force active thrust or active pull force is provided between the bogie and the vehicle, so that the lateral action between the rim of the bogie and the rail is relieved, and the abrasion between the rim and the rail is reduced.
Have and produce two kinds of mode of passive damping force and active action power, when being in and producing active action power mode, hydraulic lock 8 is opened, when being in and producing passive damping force mode, hydraulic lock 8 is closed, specifically is: the designed hydraulic lock 8 is opened when the active rotary shock absorber is in an active mode, and the pressure cavity of the oil cylinder 1 is filled with oil through the hydraulic pump 11 and is filled with oil through the other cavity; and off in the damping mode.
The designed oil cylinder 1 is used as an actuating mechanism for transmitting force, the oil cylinder 1 adopts a single-piston double-acting structure, the cylinder body 14 is a shell of the oil cylinder 1, and a displacement sensor 15 is integrated between a piston rod 13 of the oil cylinder 1 and the bottom of the cylinder body 14 and can detect the stretching or compressing position of the active rotary shock absorber, so that whether a vehicle runs in a straight line or a curve is detected, and the displacement sensor is used for controlling the working mode of the active rotary shock absorber to generate passive damping force, active pushing force or active pulling force.
The designed first overflow valve 2 and the second overflow valve 3 are both adjustable overflow valves; the overflow valve I2 is used for adjusting the pressure of a rodless cavity of the oil cylinder 1, so that the active acting thrust of the active rotary shock absorber is adjusted; the overflow valve II 3 is used for adjusting the pressure of a rod cavity of the oil cylinder 1, so that the active acting tension of the active rotary shock absorber is adjusted.
The first check valve 4 is used for stretching the rodless cavity to absorb oil in the damping mode of the active rotary shock absorber, and the second check valve 5 is used for compressing the rod cavity to absorb oil in the damping mode of the active rotary shock absorber.
A first damping adjusting unit 6 and a second damping adjusting unit 7 are designed; the first damping adjusting unit 6 is used for compressing the rodless cavity to generate damping force in the damping mode of the active rotary shock absorber, the second damping adjusting unit 7 is used for compressing the rod cavity to generate damping force in the damping mode of the active rotary shock absorber, and both the first damping adjusting unit 6 and the second damping adjusting unit 7 are formed by connecting a throttle valve 16 and an unloading valve 17 in parallel; when the vibration speed of the active rotary vibration absorber is low, the pressure oil from the oil cylinder 1 generates damping force through the throttle valve 16, and when the vibration speed is high, the unloading valve 17 can be opened for unloading, so that the damping characteristic curve is changed.
The electromagnetic directional valve 9 is designed, the neutral position function of the electromagnetic directional valve 9 is an H-shaped three-position four-way directional valve, the electromagnetic valve generates a passive damping acting force when the electromagnetic valve is in the neutral position, the active rotary shock absorber generates an active thrust when the electromagnetic valve is in the left position, and the active rotary shock absorber generates an active tension when the electromagnetic valve is in the right position.
A motor 10 and a hydraulic pump 11 are designed to provide a power source for generating active thrust and active pull for the active rotary vibration absorber, and a closed oil tank 12 is designed to provide circulating hydraulic oil for the active rotary vibration absorber.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and include, for example, fixed connections, detachable connections, or integral connections; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (6)
1. A steering damper of a railway vehicle bogie comprises a valve seat (18) and is characterized in that a first damping adjusting unit (6), a second damping adjusting unit (7) and a hydraulic lock (8) are mounted on the valve seat (18), the hydraulic lock (8) is located between the first damping adjusting unit (6) and the second damping adjusting unit (7), an oil tank (12) is arranged in the valve seat (18), an oil cylinder (1) is further mounted on the valve seat (18), a piston rod (13) is arranged on the oil cylinder (1), a displacement sensor (15) is arranged on the piston rod (13), an electromagnetic reversing valve (9) and a hydraulic pump (11) are connected between the hydraulic lock (8) and the oil tank (12), a motor (10) is arranged on one side of the hydraulic pump (11), and a first check valve (4) and a second check valve (5) which are located on two sides of the hydraulic lock (8) are mounted on the valve seat (18) respectively, and the valve seat (18) is respectively provided with a first overflow valve (2) and a second overflow valve (3) which are positioned at two sides of the hydraulic lock (8).
2. A railway vehicle bogie shock absorber according to claim 1, wherein the first damping adjustment unit (6) and the second damping adjustment unit (7) are each formed by a throttle valve (16) and an unloading valve (17) connected in parallel.
3. A railway vehicle bogie shock absorber according to claim 2 wherein a plurality of unloading valves (17) are provided in an unloading pressure gradient.
4. A railway vehicle truck steer absorber according to claim 1, wherein the steer absorber has two modes of operation producing passive damping forces and active forces.
5. A railway vehicle bogie shock absorber according to claim 4 wherein the hydraulic lock (8) is open in the active force generating mode of operation and the hydraulic lock (8) is closed in the passive damping force generating mode of operation.
6. The railway vehicle bogie shock absorber according to claim 1, wherein the electromagnetic directional valve (9) is a three-position four-way directional valve with a "H" shape in its median function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111619123.XA CN114278696A (en) | 2021-12-27 | 2021-12-27 | Steering damper of railway vehicle bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111619123.XA CN114278696A (en) | 2021-12-27 | 2021-12-27 | Steering damper of railway vehicle bogie |
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| Publication Number | Publication Date |
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| CN114278696A true CN114278696A (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111619123.XA Pending CN114278696A (en) | 2021-12-27 | 2021-12-27 | Steering damper of railway vehicle bogie |
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Citations (9)
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|---|---|---|---|---|
| JP2002054675A (en) * | 2000-08-14 | 2002-02-20 | Kayaba Ind Co Ltd | Damper for vibration damping, and damping system |
| JP2002240710A (en) * | 2001-02-16 | 2002-08-28 | Nippon Sharyo Seizo Kaisha Ltd | Vibration suppressing device for rail way vehicle |
| CN107420474A (en) * | 2017-09-11 | 2017-12-01 | 东莞理工学院 | A kind of anti-oil-pressure damper and its Parameters design of crawling of track friendly |
| CN207777310U (en) * | 2017-10-25 | 2018-08-28 | 成都弗格森液压机电有限公司 | The restraining device of redundant force in a kind of servo hydraulic system |
| CN108547821A (en) * | 2018-07-04 | 2018-09-18 | 北京奥腾岩石科技有限公司 | Integrated hydraulic course changing control valve group and fluid-link steering control system |
| CN110360260A (en) * | 2019-06-20 | 2019-10-22 | 中车青岛四方机车车辆股份有限公司 | A kind of active control resists snakelike damper and vibration insulating system, vehicle |
| CN110360263A (en) * | 2019-06-20 | 2019-10-22 | 中车青岛四方机车车辆股份有限公司 | Partly actively resist snakelike damper and vibration insulating system, vehicle |
| CN110862047A (en) * | 2019-11-20 | 2020-03-06 | 江苏力维液压装备有限公司 | Hydraulic control device and method for explosion-proof synchronous circuit for elevator |
| CN113291344A (en) * | 2021-06-09 | 2021-08-24 | 中车株洲电力机车有限公司 | Self-adaptive snake-shaped motion resisting system and control method thereof |
-
2021
- 2021-12-27 CN CN202111619123.XA patent/CN114278696A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002054675A (en) * | 2000-08-14 | 2002-02-20 | Kayaba Ind Co Ltd | Damper for vibration damping, and damping system |
| JP2002240710A (en) * | 2001-02-16 | 2002-08-28 | Nippon Sharyo Seizo Kaisha Ltd | Vibration suppressing device for rail way vehicle |
| CN107420474A (en) * | 2017-09-11 | 2017-12-01 | 东莞理工学院 | A kind of anti-oil-pressure damper and its Parameters design of crawling of track friendly |
| CN207777310U (en) * | 2017-10-25 | 2018-08-28 | 成都弗格森液压机电有限公司 | The restraining device of redundant force in a kind of servo hydraulic system |
| CN108547821A (en) * | 2018-07-04 | 2018-09-18 | 北京奥腾岩石科技有限公司 | Integrated hydraulic course changing control valve group and fluid-link steering control system |
| CN110360260A (en) * | 2019-06-20 | 2019-10-22 | 中车青岛四方机车车辆股份有限公司 | A kind of active control resists snakelike damper and vibration insulating system, vehicle |
| CN110360263A (en) * | 2019-06-20 | 2019-10-22 | 中车青岛四方机车车辆股份有限公司 | Partly actively resist snakelike damper and vibration insulating system, vehicle |
| CN110862047A (en) * | 2019-11-20 | 2020-03-06 | 江苏力维液压装备有限公司 | Hydraulic control device and method for explosion-proof synchronous circuit for elevator |
| CN113291344A (en) * | 2021-06-09 | 2021-08-24 | 中车株洲电力机车有限公司 | Self-adaptive snake-shaped motion resisting system and control method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王东大: "拆装机械液压传动", vol. 7, 大连海事大学出版社, pages: 92 - 93 * |
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