CN210881753U - Vibration damper, seat and vehicle - Google Patents
Vibration damper, seat and vehicle Download PDFInfo
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- CN210881753U CN210881753U CN201921797258.3U CN201921797258U CN210881753U CN 210881753 U CN210881753 U CN 210881753U CN 201921797258 U CN201921797258 U CN 201921797258U CN 210881753 U CN210881753 U CN 210881753U
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Abstract
The utility model relates to the field of seat vibration reduction, in particular to a vibration reduction device, a seat and a vehicle, wherein the vibration reduction device comprises two support plates, four folding frames and springs which are oppositely arranged; a fixing groove extends in the horizontal direction of the side surface of the supporting plate; one end of each folding frame is installed in the fixing groove through a rotating shaft, the other end of each folding frame is installed in the fixing groove of the other supporting plate through a rotating shaft, the four folding frames are symmetrically arranged in pairs, and springs are arranged between the two mutually-symmetrical folding frames; the folding frame comprises a first folding frame and a second folding frame, and the first folding frame is connected with the second folding frame through a rotating shaft. The utility model discloses a damping device plays the effect of a damping through the tensile restriction of self structural deformation and spring, simultaneously the utility model discloses a damping seat makes the personnel of taking not basically have the sense of shaking through controlling magnetorheological suspensions and the dual damping of damping device, and the damping effect is obvious.
Description
Technical Field
The utility model relates to a seat damping field especially relates to a vibration damper, seat and vehicle.
Background
The vibration reduction technology adopted by the current domestic trains adopts direct vibration reduction under most conditions, namely, the aim of vibration reduction is achieved by stretching and compressing a piston rod to reciprocate through an oil pressure vibration absorber to form hydraulic damping force so as to achieve good vibration reduction damping effect and flexible vibration reduction effect. In more advanced vehicle models, a seat damping pad is generally arranged below a seat to realize the functions of sound insulation and vibration damping. In the middle of the domestic research on train seats, most of the research is based on the comfort of the train seats, namely, the seat structure is designed through aerodynamics, fatigue reliability, ergonomics and the like, but with the progress of science and technology, a new breakthrough is made in the research direction of vibration reduction seats, and magnetorheological fluid and seat vibration reduction are gradually combined.
Various magnetorheological fluid type vibration reduction seats exist at present, but most of the seats only adopt magnetorheological fluid for vibration reduction only singly, the effect is not obvious, and meanwhile, the control structure of the magnetorheological fluid is complex, so that the vibration reduction response time is long, the vibration reduction control cannot be carried out quickly under the condition of continuous vibration, partial vibration can be transmitted to passengers, and the passengers can feel obvious vibration; for example, chinese patent CN201710773998.2 discloses an automobile seat vibration damping device and an automobile based on magnetorheological fluid materials, wherein the magnetorheological fluid materials flow back and forth between two chambers through orifices on a working piston, the viscosities of the magnetorheological fluid materials are different, and variable damping attenuation to vibration is realized through corresponding variation of damping generated by the orifices; the whole process is complicated and lengthy, and the current vibration is not processed yet and the next vibration comes. For example, chinese patent CN201611020308.8 discloses a vibration damping seat control device for a vehicle and a magnetorheological fluid type vehicle and a method thereof, which require magnetorheological fluid to complete vibration damping through a damping hole of a damping plate, and also have the problems of complicated and long process and failure in vibration treatment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a vibration damper, seat and vehicle realize shielding and weakening and alleviate the vibration sense of taking personnel to the vibration.
In order to solve the technical problem, the utility model provides a vibration damper, which comprises two oppositely arranged supporting plates, four folding frames and a spring; a fixing groove extends in the horizontal direction of the side surface of the supporting plate; one end of each folding frame is installed in the fixing groove through a rotating shaft, the other end of each folding frame is installed in the fixing groove of the other supporting plate through a rotating shaft, the four folding frames are symmetrically arranged in pairs, and springs are arranged between the two mutually-symmetrical folding frames; the folding frame comprises a first folding frame and a second folding frame, and the first folding frame is connected with the second folding frame through a rotating shaft.
Preferably, the supporting plate has a square structure, and a reinforcing plate is disposed between adjacent fixing grooves.
As a preferred scheme, U-shaped structures are respectively arranged on the first folding frame and the second folding frame, sliding grooves are formed in the U-shaped structures, sliding rods are arranged on the sliding grooves, one end of each spring is connected with the sliding rods on one folding frame, and the other end of each spring is connected with the sliding rods on the symmetrical folding frames.
As the preferred scheme, the two ends of the folding frame extend in the direction perpendicular to the folding frame to form a U-shaped structure, a sliding groove is formed in the U-shaped structure, a sliding rod is arranged on the sliding groove, one end of the spring is connected with the sliding rod on one folding frame, and the other end of the spring is connected with the sliding rod on the symmetrical folding frame.
Preferably, the sliding rod is provided with a locking device.
Preferably, the first folding frame and the second folding frame have the same length.
In order to solve the technical problem, the utility model provides a vibration damping seat, which comprises the vibration damping device, a seat, a steering device, a mounting plate, a control unit and a damping unit,
the vibration damper is arranged inside a cushion of the seat;
the seat is arranged on the top surface of the mounting plate through a steering device;
the damping unit comprises a piston cylinder filled with magnetorheological fluid, a fixed cylinder and a piston rod, and the fixed cylinder is sleeved outside the piston cylinder; one end of the piston rod is vertically welded in the fixed cylinder, and the other end of the piston rod extends into the piston cylinder; the top end of the piston cylinder is welded with the bottom surface of the mounting plate;
the control unit includes:
a pressure sensor installed in the seat for receiving a pressure of the seat;
the information amplifier is connected with the pressure sensor and used for amplifying and rectifying the information acquired by the pressure sensor;
the single chip microcomputer unit is connected with the information amplifier and used for receiving the information acquired by the pressure sensor, calculating the current control quantity acting on the magnetorheological fluid according to the seat pressure information and sending a control signal;
and the current driver is respectively connected with the single chip microcomputer unit and the magnetorheological fluid and is used for converting the single chip microcomputer control signal into control current and controlling the damping characteristic of the magnetorheological fluid.
As a preferred scheme, the number of the damping units and the number of the control units are four, and the damping units are respectively arranged at four corners of the mounting plate; the pressure sensors in the control unit are arranged at four corners of the seat cushion and used for collecting the pressure at the four corners of the seat cushion; and the control unit controls the damping characteristics of the magnetorheological fluid in the corresponding damping unit according to the information acquired by the corresponding pressure sensor.
Preferably, the damping device is provided with a plurality of damping devices, and the plurality of damping devices are laid in the seat cushion at equal intervals.
In order to solve the technical problem, the utility model provides a damping vehicle, including foretell damping seat.
The utility model discloses following beneficial effect has:
(1) in the vibration damping device, if one supporting plate is used for receiving the front pressure, such as the pressure of passengers, and the other supporting plate is used for receiving the back pressure, such as the vibration transmitted from the lower part; when having the pressure to act on the backup pad, two backup pads are close to, lead to first folding frame and the outside certain angle of folding of second frame to make the spring tensile, whole device is in stable state, reaches and weakens the vibration, and the shielded effect even avoids the vibration to transmit to the personnel of taking.
(2) The damping seat of the utility model is provided with the damping unit and the control unit, and controls the damping characteristic of the magnetorheological fluid in the damping unit through the control unit, so that the piston cylinder can slide up and down on the piston rod, thereby realizing the variable damping attenuation of vibration and playing the first damping effect; and the vibration damper is arranged in the seat, so that the second vibration damping and double vibration damping are realized, and passengers basically cannot feel vibration.
Drawings
Fig. 1 is a schematic structural diagram of a vibration damping device provided in an embodiment of the present invention;
fig. 2 is a schematic structural view of a folding leg of the vibration damping device provided by the embodiment of the present invention;
fig. 3 is a schematic view of a seat structure provided by an embodiment of the present invention;
fig. 4 is a schematic layout view of a vibration damping device provided by an embodiment of the present invention.
Reference numerals: 1. a support plate; 2. a first folding frame; 3. a second folding frame; 4. a spring; 5. a seat; 6. a steering device; 7. mounting a plate; 8. a pressure sensor; 9. an information amplifier; 10. a single chip unit; 11. a current driver; 12. a piston cylinder; 13. a fixed cylinder; 14. a piston rod; 15. a vibration damping device; 16. magnetorheological fluid.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
referring to fig. 1 and 2, a vibration damping device according to a preferred embodiment of the present invention includes two support plates 1 disposed opposite to each other, four folding legs, and a spring 4; a fixing groove extends in the horizontal direction of the side surface of the supporting plate 1; one end of each folding frame is installed in the fixing groove through a rotating shaft, the other end of each folding frame is installed in the fixing groove of the other supporting plate 1 through a rotating shaft, the four folding frames are symmetrically arranged in pairs, and springs 4 are arranged between the two mutually symmetrical folding frames; the folding frame comprises a first folding frame 2 and a second folding frame 3, wherein the first folding frame 2 is connected with the second folding frame 3 through a rotating shaft.
Specifically, if one support plate 1 is used for receiving front pressure, such as pressure of a passenger, and the other support plate 1 is used for receiving back pressure, such as vibration transmitted from the lower part; when having the pressure to act on backup pad 1, two backup pads 1 are close to, lead to first folding frame 2 and the outside certain angle that folds of second folding frame 3 to make spring 4 tensile, whole device is in stable state, reaches and weakens the vibration, and the effect of shielding even avoids the vibration to transmit to the personnel of taking.
In the preferred embodiment of the present invention, the supporting plate 1 has a square structure, and is adjacent to the fixing groove, and a reinforcing plate is disposed between the fixing grooves.
In the preferred embodiment of the present invention, the first folding frame 2 and the second folding frame 3 are respectively provided with a U-shaped structure, the U-shaped structure is provided with a sliding groove, the sliding groove is provided with a sliding rod, one end of the spring 4 is connected with the sliding rod on one folding frame, and the other end is connected with the sliding rod on the symmetrical folding frame.
In the preferred embodiment of the present invention, the two ends of the folding frame extend perpendicularly to the folding frame to form a U-shaped structure, the U-shaped structure has a sliding groove, the sliding groove is provided with a sliding rod, one end of the spring 4 is connected to a sliding rod on one folding frame, and the other end is connected to a sliding rod on the symmetrical folding frame.
Specifically, the sliding grooves are formed by arranging a plurality of U-shaped structures, and the springs 4 are arranged on the sliding grooves, so that multipoint balance of the device can be realized, the deformation amplitude of the whole device can be larger, the device is ensured to adapt to larger pressure and vibration, the larger vibration is ensured to be weakened, and a better vibration reduction effect is achieved.
In the preferred embodiment of the present invention, the sliding rod is provided with a locking device.
Specifically, the sliding rod can be fixed at a certain position of the sliding groove through the locking device, the initial state, namely the initial stretching degree, of the spring 4 is controlled, the deformation of the damping device is controlled, the influence of the self weight of a passenger is considered in practical application, the parameter of the spring 4 is linked with the weight of the human body, and the situation that the passenger is scared due to the fact that the seat surface of the seat 5 sinks is avoided.
In the preferred embodiment of the present invention, the first folding frame 2 and the second folding frame 3 have the same length.
Example 2:
referring to fig. 3 and 4, a preferred embodiment of the present invention provides a vibration-damping seat, which comprises the vibration-damping device 15 of embodiment 1, a seat 5, a steering device 6, a mounting plate 7, a control unit and a damping unit,
the damping device 15 is arranged inside a cushion of the seat 5;
the seat 5 is arranged on the top surface of the mounting plate 7 through a steering device 6;
the damping unit comprises a piston cylinder 12 filled with magnetorheological fluid 16, a fixed cylinder 13 and a piston rod 14, and the fixed cylinder 13 is sleeved outside the piston cylinder 12; one end of the piston rod 14 is vertically welded in the fixed cylinder 13, and the other end of the piston rod extends into the piston cylinder 12; the top end of the piston cylinder 12 is welded with the bottom surface of the mounting plate 7;
the control unit includes:
a pressure sensor 8 installed in the seat 5 for receiving a pressure of the seat 5;
an information amplifier 9 connected with the pressure sensor 8 and used for amplifying and rectifying the information collected by the pressure sensor 8;
the single chip microcomputer unit 10 is connected with the information amplifier 9 and used for receiving the information collected by the pressure sensor 8, calculating the current control quantity acting on the magnetorheological fluid 16 according to the pressure information of the seat 5 and sending a control signal;
and the current driver 11 is respectively connected with the single chip microcomputer unit 10 and the magnetorheological fluid 16 and is used for converting a single chip microcomputer control signal into control current and controlling the damping characteristic of the magnetorheological fluid 16.
It is worth to say that the damping device 15 is arranged horizontally in the seat cushion of the seat 5, i.e. the two support plates 1 of the damping device 15 are placed horizontally, one to receive the pressure of the occupant and one to receive the vibrations transmitted from bottom to top.
Specifically, when vibration occurs, the control unit controls the damping characteristic of the magnetorheological fluid 16 in the damping unit, so that the piston cylinder 12 slides up and down on the piston rod 14, the variable damping attenuation of the vibration is realized, a first vibration damping effect is achieved, the whole vibration damping structure is simple, the process is fast and compact, and the continuous vibration can be adapted; and by installing the vibration damper 15 in the seat 5, a second vibration damping, double vibration damping, is achieved, so that the occupant basically does not feel the vibration.
In the preferred embodiment of the present invention, the number of the damping units and the number of the control units are four, and the damping units are respectively installed at four corners of the mounting plate 7; pressure sensors 8 in the control unit are arranged at four corners of the seat cushion of the seat 5 and used for collecting pressure at the four corners of the seat cushion of the seat 5; the control unit controls the damping characteristics of the magnetorheological fluid 16 in the corresponding damping unit according to the information collected by the corresponding pressure sensor 8.
Specifically, gather through the pressure to four angles of seat 5, the damping unit at four angles simultaneously controls, realizes the damping at 5 four angles of seat, single damping relatively, the independent damping at four angles, can deal with the inhomogeneous vibration that distributes, for example one side wheel of vehicle rolls the stone and makes the vehicle slope, and the vibration at 5 four angles of seat is different, so control four angles respectively, and the damping effect is better.
In the preferred embodiment of the present invention, the vibration damping device 15 is provided in a plurality of, and a plurality of, the vibration damping devices 15 are equidistantly laid in the cushion of the seat 5.
Example 3:
the preferred embodiment of the present invention provides a vibration damping vehicle, including embodiment 2 vibration damping seat 5.
Specifically, the vibration damping vehicle is provided with a plurality of vibration damping seats 5, and the fixed cylinders 13 of the vibration damping seats 5 are welded on a vehicle plate of the vehicle.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. A vibration damping device characterized by: comprises two supporting plates, four folding frames and springs which are oppositely arranged; a fixing groove extends in the horizontal direction of the side surface of the supporting plate; one end of each folding frame is installed in the fixing groove through a rotating shaft, the other end of each folding frame is installed in the fixing groove of the other supporting plate through a rotating shaft, the four folding frames are symmetrically arranged in pairs, and springs are arranged between the two mutually-symmetrical folding frames; the folding frame comprises a first folding frame and a second folding frame, and the first folding frame is connected with the second folding frame through a rotating shaft.
2. The vibration damping device as claimed in claim 1, wherein the support plate has a square structure, and a reinforcing plate is disposed between adjacent fixing grooves.
3. The vibration damper according to claim 1, wherein the first folding frame and the second folding frame are respectively provided with a U-shaped structure, the U-shaped structures are provided with sliding grooves, the sliding grooves are provided with sliding rods, one end of the spring is connected with the sliding rod on one folding frame, and the other end of the spring is connected with the sliding rods on the symmetrical folding frames.
4. The vibration damper according to claim 3, wherein the two ends of the folding frame extend perpendicularly to the direction of the folding frame to form a U-shaped structure, the U-shaped structure is provided with a sliding groove, a sliding rod is arranged on the sliding groove, one end of the spring is connected with the sliding rod on one folding frame, and the other end of the spring is connected with the sliding rod on the symmetrical folding frame.
5. The vibration damping device as set forth in claim 4, wherein a locking device is provided on the slide rod.
6. The vibration damping device according to claim 2, wherein the first folding leg and the second folding leg have the same length.
7. A vibration damping seat is characterized by comprising the vibration damping device as described in any one of 1-6, a seat, a steering device, a mounting plate, a control unit and a damping unit,
the vibration damper is arranged inside a cushion of the seat;
the seat is arranged on the top surface of the mounting plate through a steering device;
the damping unit comprises a piston cylinder filled with magnetorheological fluid, a fixed cylinder and a piston rod, and the fixed cylinder is sleeved outside the piston cylinder; one end of the piston rod is vertically welded in the fixed cylinder, and the other end of the piston rod extends into the piston cylinder; the top end of the piston cylinder is welded with the bottom surface of the mounting plate;
the control unit includes:
a pressure sensor installed in the seat for receiving a pressure of the seat;
the information amplifier is connected with the pressure sensor and used for amplifying and rectifying the information acquired by the pressure sensor;
the single chip microcomputer unit is connected with the information amplifier and used for receiving the information acquired by the pressure sensor, calculating the current control quantity acting on the magnetorheological fluid according to the seat pressure information and sending a control signal;
and the current driver is respectively connected with the single chip microcomputer unit and the magnetorheological fluid and is used for converting the single chip microcomputer control signal into control current and controlling the damping characteristic of the magnetorheological fluid.
8. The vibration damping seat according to claim 7, wherein the damping units and the control units are respectively provided with four, and the damping units are respectively arranged at four corners of the mounting plate; the pressure sensors in the control unit are arranged at four corners of the seat cushion and used for collecting the pressure at the four corners of the seat cushion; and the control unit controls the damping characteristics of the magnetorheological fluid in the corresponding damping unit according to the information acquired by the corresponding pressure sensor.
9. The vibration damping seat according to claim 7, wherein a plurality of vibration damping devices are provided, and the plurality of vibration damping devices are laid in the seat cushion at equal intervals.
10. A vibration damping vehicle comprising a vibration damping seat as claimed in any one of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921797258.3U CN210881753U (en) | 2019-10-24 | 2019-10-24 | Vibration damper, seat and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921797258.3U CN210881753U (en) | 2019-10-24 | 2019-10-24 | Vibration damper, seat and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN210881753U true CN210881753U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921797258.3U Active CN210881753U (en) | 2019-10-24 | 2019-10-24 | Vibration damper, seat and vehicle |
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| CN (1) | CN210881753U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110667444A (en) * | 2019-10-24 | 2020-01-10 | 五邑大学 | Vibration damper, seat and vehicle |
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- 2019-10-24 CN CN201921797258.3U patent/CN210881753U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110667444A (en) * | 2019-10-24 | 2020-01-10 | 五邑大学 | Vibration damper, seat and vehicle |
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