CN114877932A - Pressure hard spot check out test set - Google Patents
Pressure hard spot check out test set Download PDFInfo
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- CN114877932A CN114877932A CN202210419688.1A CN202210419688A CN114877932A CN 114877932 A CN114877932 A CN 114877932A CN 202210419688 A CN202210419688 A CN 202210419688A CN 114877932 A CN114877932 A CN 114877932A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/03—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses by using non-electrical means
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Abstract
The invention provides a pressure hard spot detection device, comprising: the system comprises an optical fiber MEMS pressure sensor, an optical fiber MEMS accelerometer, a roof junction box and an optical fiber demodulator, wherein the optical fiber MEMS pressure sensor is connected with the roof junction box and the optical fiber demodulator through a first optical fiber, and the optical fiber MEMS accelerometer is connected with the roof junction box and the optical fiber demodulator through a second optical fiber. The fiber grating sensor applied to the bow net system has two advantages: the optical fiber is resistant to strong electromagnetic interference, and the frequency of general electromagnetic radiation is much lower than that of light waves, so that optical signals transmitted in the optical fiber are not influenced by the electromagnetic interference; and secondly, the optical fiber has good electrical insulation, is safe and reliable, is formed by glass medium, does not need to be driven by a power supply, and can stably run under the 1500V high-voltage environment of the bow net.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to pressure hard spot detection equipment.
Background
Along with the development of rail transit, the requirements on the running safety of a rail train, the stability of power supply equipment and the reliability of rail equipment are increasingly improved, wherein a contact net and a pantograph are important components of the train, the contact net is overhead equipment integrally erected along a rail line, the pantograph is important equipment for taking current from the contact net of an electric bus, and the current is taken through sliding friction of a sliding plate and the contact net. Reliable contact and interaction between the catenary and the pantograph are important conditions for ensuring good current collection, i.e., a certain contact pressure is required between the pantograph and the contact line.
At present, the main technical means for measuring the bow net pressure and the hard point is contact detection, the traditional piezoelectric type or strain gauge type electronic sensor is adopted for detecting the bow net pressure and the hard point, but the sensor is not insulated and is easy to be interfered by electromagnetic radiation, so that the detection effect is not ideal.
Disclosure of Invention
The invention provides a pressure hard spot detection device, which is used for solving the problems in the background technology.
In order to solve the technical problem, the invention discloses a pressure hard spot detection device, which comprises: the system comprises an optical fiber MEMS pressure sensor, an optical fiber MEMS accelerometer, a roof junction box and an optical fiber demodulator, wherein the optical fiber MEMS pressure sensor is connected with the roof junction box and the optical fiber demodulator through a first optical fiber, and the optical fiber MEMS accelerometer is connected with the roof junction box and the optical fiber demodulator through a second optical fiber.
Preferably, the detection data of the fiber MEMS pressure sensor and the fiber MEMS accelerometer are acquired, sent and stored through a fiber demodulator, and are transmitted to the bow net diagnosis system in real time.
Preferably, the fiber MEMS pressure sensor and the fiber MEMS accelerometer are both disposed on a pantograph, the pantograph includes: the optical fiber MEMS accelerometer is mounted on the lower portion of the carbon sliding plate strip, and the optical fiber MEMS pressure sensor is mounted in the spring cylinder.
Preferably, the pantograph and the roof junction box are both mounted at the top of the carriage, and the optical fiber demodulator is mounted inside the carriage.
Preferably, the roof distribution box is a stainless steel sheet metal part, and the protection grade reaches IP 66.
Preferably, the method further comprises the following steps: a locking device, the locking device comprising: the device casing, device casing fixed connection is in optic fibre MEMS accelerometer and pantograph junction, just optic fibre MEMS accelerometer sets up in the device casing, be equipped with in the device casing:
two bilaterally symmetrical bolts penetrate through mounting holes in the fiber MEMS accelerometer to fix the fiber MEMS accelerometer to the pantograph;
the driving rods are arranged on the bolt in a fixed mode, a gear and a first bevel gear are arranged on the driving rods, the upper side of the gear is connected with a rack in a meshed mode, and the rack is arranged on the inner wall of the upper side of the device shell in a sliding mode;
the double-shaft motor is fixedly arranged on the inner wall of the front side of the device shell, the left side and the right side of the double-shaft motor are fixedly connected with a rotating rod through an output shaft, a second bevel gear is fixedly arranged at one end, far away from the double-shaft motor, of the rotating rod, and one end, far away from the double-shaft motor, of the second bevel gear is in meshed connection with a first bevel gear;
the two bilateral symmetry inching rods are fixedly arranged at the rear end of the double-shaft motor and are positioned at one side where the racks are close to each other, and the inching rods can be in contact fit with the racks.
Preferably, the device shell is further provided with:
the two sliding chutes are arranged on the inner walls of the left side and the right side of the device shell in a bilateral symmetry mode;
the left end and the right end of the supporting plate extend into the sliding grooves, and the supporting plate is connected with the sliding grooves in a sliding mode;
the device comprises a device shell, two left and right symmetrical installation cavities, two sliding plates, two first springs, a wire harness and two sliding plates, wherein the installation cavities are fixedly arranged on the inner walls of the left and right sides of the device shell, the sliding plates are arranged in the installation cavities, the sliding plates are connected with the inner walls of the installation cavities in a sliding mode, one side, far away from the two side walls of the device shell, of each sliding plate is fixedly connected with the two first springs, the first springs are symmetrically arranged in the front and back directions, the other ends of the first springs are fixedly arranged on the inner wall, far away from the side walls of the device shell, of the installation cavity, the wire harness is fixedly connected to the central position of one side, far away from the two side walls of the device shell, of each sliding plate, a first opening is formed in each installation cavity, and the wire harness extends out of the installation cavity from the opening;
the air inlet structure comprises two first air pipes which are bilaterally symmetrical, wherein the first air pipes are fixedly arranged on the rear side wall of an installation cavity, a second opening is formed in the rear side of the installation cavity, the first air pipes are communicated with the second opening, a first air bag is communicated with the rear side of the first air pipes, and the first air bag is abutted against a supporting plate;
the wire wheels are arranged symmetrically left and right, the wire wheels are fixedly arranged on the driving rod, and a wire harness is wound on the wire wheels.
Preferably, the backup pad front side bilateral symmetry articulates there is the connecting rod, the connecting rod front side articulates there is first movable plate, first movable plate and device casing front side inner wall sliding connection, just biax motor one side fixed connection second spring is kept away from to first movable plate, the other end fixed connection of second spring is on device casing left and right sides wall.
Preferably, the spring case includes: the lower barrel is arranged in the upper barrel, a first pressing plate is arranged in the upper barrel, a third opening is formed in the upper side wall of the upper barrel, the first pressing plate extends out of the upper barrel from the third opening, and third springs are symmetrically and fixedly arranged on the lower surface of the first pressing plate;
a second pressing plate is arranged in the lower cylinder, a fourth opening is formed in the upper side wall of the lower cylinder, the second pressing plate extends out of the lower cylinder from the fourth opening, the lower end of a third spring is fixedly arranged on the upper surface of the second pressing plate, and connecting rods are symmetrically arranged on the left and right of the lower surface of the second pressing plate;
a second moving plate, a first fixed plate and a third moving plate are sequentially arranged in the lower cylinder from top to bottom, the second moving plate and the third moving plate are in sliding connection with the inner wall of the lower cylinder, and the first fixed plate is fixedly connected with the inner wall of the lower cylinder; the upper surface of the second moving plate is also fixedly provided with fourth springs in a bilateral symmetry mode, and the upper ends of the fourth springs are fixedly arranged on the inner wall of the upper side of the lower cylinder;
the connecting rod downwards passes through the second movable plate and the first fixed plate, the connecting rod is fixedly connected with the penetrating position of the second movable plate, the connecting rod is slidably connected with the penetrating position of the first fixed plate, the lower end of the connecting rod is fixedly connected with the third movable plate, and the lower end of the third movable plate is in contact fit with the optical fiber MEMS pressure sensor.
Preferably, go up the internal bilateral symmetry of barrel and be equipped with the cushion chamber, the cushion chamber is equipped with:
the left and right ends of the first arc-shaped plate and the second arc-shaped plate are connected with the inner walls of the two sides of the buffer cavity in a sliding mode, channels are arranged on the first arc-shaped plate and the second arc-shaped plate, the lower end of the second arc-shaped plate is fixedly connected with a fifth spring, the lower end of the fifth spring is fixedly connected with the first arc-shaped plate, the lower end of the first arc-shaped plate is fixedly connected with a sixth spring, and the lower end of the sixth spring is fixedly connected with the inner wall of the lower side of the buffer cavity;
seventh springs are symmetrically arranged at the upper end of the second arc-shaped plate in the left-right direction, the upper ends of the seventh springs are fixedly connected with a fourth moving plate, the fourth moving plate is connected with the inner wall of the buffer cavity in a sliding manner, a moving rod is further fixedly connected at the upper end of the fourth moving plate, and the moving rod extends into the gas storage cavity;
the gas storage cavity is fixedly arranged in the buffer cavity, a fifth moving plate is arranged in the gas storage cavity, the fifth moving plate is connected with the inner wall of the gas storage cavity in a sliding mode, the lower end of the fifth moving plate is fixedly connected with a moving rod, a second gas pipe is further connected to the gas storage cavity in a penetrating mode, the second gas pipe extends out of the gas storage cavity, the other end of the second gas pipe is connected with a second gas bag in a penetrating mode, the second gas bag is fixedly arranged in the center of the upper surface of a second pressing plate, and the second gas bag can be in contact fit with the first pressing plate;
and a hydraulic cavity is further arranged in the lower barrel and is positioned between the second movable plate and the first fixed plate, the left side and the right side of the hydraulic cavity are in through connection with hydraulic pipelines, and the hydraulic pipelines are in through connection with a buffer cavity.
Drawings
The accompanying drawings, which 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 principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the roof structure of the vehicle of the present invention;
FIG. 3 is a schematic diagram of the outer appearance of the spring case of the present invention;
FIG. 4 is a schematic view of an accelerometer installation of the present invention;
FIG. 5 is a schematic view of the external appearance of the fiber optic demodulator according to the present invention;
FIG. 6 is a schematic view of the pressure sensor installation of the present invention;
FIG. 7 is a side view of the pressure sensor of the present invention;
FIG. 8 is a schematic view of an accelerometer of the present invention;
FIG. 9 is a schematic external view of a roof junction box of the present invention;
FIG. 10 is a flow chart of the present invention;
FIG. 11 is a schematic structural view of a locking device of the present invention;
FIG. 12 is an enlarged view taken at A of FIG. 11 according to the present invention;
fig. 13 is an internal structure view of a spring case according to the present invention;
FIG. 14 is a schematic view of a buffer chamber according to the present invention.
In the figure: 1. a pantograph; 2. a fiber optic MEMS accelerometer; 3. a spring case; 3a, mounting the cylinder; 3b, a lower cylinder body; 4. a carbon slider bar; 5. a carriage; 6. a roof junction box; 7. an optical fiber demodulator; 8. a fiber optic MEMS pressure sensor; 9. a bolt; 10. a click rod; 11. a locking device; 12. a device housing; 13. a support plate; 14. a chute; 15. a first air bag; 16. a first air pipe; 17. a mounting cavity; 18. a second spring; 19. a first bevel gear; 20. rotating the rod; 21. a double-shaft motor; 22. a second bevel gear; 23. a connecting rod; 24. a sliding plate; 25. a first spring; 26. a drive rod; 27. a rack; 28. a gear; 29. a wire harness; 30. a wire wheel; 31. a buffer chamber; 32. a second air pipe; 33. a first pressing plate; 34. a second air bag; 35. a third spring; 36. a second pressing plate; 37. a connecting rod; 38. a third moving plate; 39. a second moving plate; 40. a first fixing plate; 41. a hydraulic chamber; 42. a fourth spring; 43. a second arc-shaped plate; 44. a fourth moving plate; 45. a gas storage cavity; 46. a fifth moving plate; 47. a travel bar; 48. a seventh spring; 49. a fifth spring; 50. a sixth spring; 51. a hydraulic conduit; 52. a first arc-shaped plate; 53. a first moving plate.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
Example 1
Embodiments of the present invention provide a pressure hard spot detection device, as shown in fig. 1-10, comprising: the system comprises a fiber MEMS pressure sensor 8, a fiber MEMS accelerometer 2, a roof distribution box 6 and a fiber demodulator 7, wherein the fiber MEMS pressure sensor 8 is connected with the roof distribution box 6 and the fiber demodulator 7 through a first optical fiber, and the fiber MEMS accelerometer 2 is connected with the roof distribution box 6 and the fiber demodulator 7 through a second optical fiber.
The fiber bragg grating is formed in the optical fiber by utilizing the thermal processing effect of ultraviolet light. Bragg Gratings (FBGs) are periodic in natureMicrostructure of the wavelength selective mirror. When light reaches the grating along the fiber, only light at the bragg wavelength will be reflected by the grating and the remaining light waves will continue through the fiber to the next grating without any loss. Bragg wavelength lambda B Is determined by the period Λ of the microstructure and the refractive index n of the refractive core ef To define
λ B ＝2n ef Λ (1)
When the fiber is stretched or squeezed, the deformation of the fiber causes the period Λ of the microstructure to change, thereby changing the bragg wavelength λ B (ii) a The refractive index n of the material silica of the optical fiber changes when the temperature of the optical fiber changes ef Changes occur, thereby changing the Bragg wavelength lambda B . Based on these two characteristics of the grating, the changes of the strain and temperature of the optical fiber can be known by detecting the changes of the reflected Bragg wavelength. The principle of the fiber bragg grating pressure and acceleration sensor is based on the temperature and stress effect of the fiber bragg grating, the sensor does not need a power supply, and therefore bow net vibration and stress detection of key parts of a pantograph can be achieved.
The working principle of the technical scheme is as follows: the fiber MEMS pressure sensor 8 and the fiber MEMS accelerometer 2 transmit the detection result to the fiber demodulator 7 through the first fiber/second fiber and the roof distribution box 6.
The beneficial effects of the above technical scheme are: by arranging the pressure sensor 8 and the accelerometer 2 as fiber grating sensors, strong electromagnetic interference is resisted, and the frequency of general electromagnetic radiation is much lower than that of light waves, so that optical signals transmitted in optical fibers are not influenced by the electromagnetic interference; and secondly, the optical fiber is good in electrical insulation, safe and reliable, the optical fiber is made of glass medium, power supply driving is not needed, the optical fiber can stably run under the 1500V high-voltage environment of the bow net, and the detection effect is good.
Example 2
On the basis of the above embodiment 1, as shown in fig. 1 to 10, the detection data of the fiber MEMS pressure sensor 8 and the fiber MEMS accelerometer 2 are collected, sent and stored by the fiber demodulator 7, and are transmitted to the bow net diagnosis system in real time.
Wherein, preferentially, optic fibre MEMS pressure sensor 8 and optic fibre MEMS accelerometer 2 all set up on pantograph 1, pantograph 1 includes: the device comprises a spring cylinder 3 and a carbon sliding plate strip 4, wherein the optical fiber MEMS accelerometer 2 is installed on the lower portion of the carbon sliding plate strip 4, and the optical fiber MEMS pressure sensor 8 is installed in the spring cylinder 3.
Preferably, the pantograph 1 and the roof distribution box 6 are both mounted on the top of the carriage 5, and the optical fiber demodulator 7 is mounted inside the carriage 5.
Preferably, the roof distribution box 6 is a stainless steel sheet metal part, and the protection grade reaches IP 66.
The optical fiber demodulator is internally provided with an optical fiber fusion box, a photoelectric converter and an industrial personal computer.
The 2-path 8-core optical cable entering the vehicle from the roof enters the optical fiber fusion box from OP1 and OP2 Kuran heads, is converted into a 1-path 16-core optical aviation plug in the optical fiber fusion box, is led out from an MPO2 Kuran head and is inserted into an MPO1 optical aviation socket, and at the moment, the optical signal of the sensor is photoelectrically converted into a wavelength value.
The industrial personal computer is used for converting the sensor wavelength value into corresponding measurement physical quantity, Ethernet data communication (UDP message), data storage, parameter configuration and the like.
The optical fiber demodulator panel notes are shown in table 1, and the product parameters are shown in table 2.
TABLE 1 fiber Modulator Panel notes
| MPO1 | Optical aviation socket | MP02 | Kulan head |
| OP1 | Kulan head | OP2 | Kulan head |
| NET1 | M12 net port | HD | Pluggable hard disk |
| POWER | Power indicator lamp | RUN | Equipment operation indicating lamp |
| USB1 | Industrial personal computer USB interface | USB2 | Industrial personal computer USB interface |
| P1 | Power switch | V+N V- | Power socket |
TABLE 2 technical parameters of fiber optic demodulator
The equipment adopts 4M 6 high-strength bolts (with the mechanical performance grade of more than 8.8) to check and determine the locking torque force through a torque wrench, and the torque force of each bolt is required to be not lower than 16N.
The working principle of the technical scheme is as follows: the detection data of the fiber MEMS pressure sensor 8 and the fiber MEMS accelerometer 2 are transmitted to the bow net diagnosis system through the fiber demodulator 7.
The beneficial effects of the above technical scheme are: through setting up roof junction box 6, can carry out effectual protection to the butt fusion of optical cable, and roof junction box 6 is stainless steel sheet metal spare, and protection level reaches IP66, has dustproof, waterproof, anti vibration function, can adapt to the outer bad environment such as filthy, the big difference in temperature of car.
Example 3
On the basis of the above embodiment 1-2, as shown in fig. 11-12, the present invention further includes: locking device 11, locking device 11 includes: device casing 12, device casing 12 fixed connection is in optic fibre MEMS accelerometer 2 and pantograph 1 junction, just optic fibre MEMS accelerometer 2 sets up in device casing 12, be equipped with in the device casing 12:
two bilaterally symmetrical bolts 9, wherein the bolts 9 penetrate through mounting holes in the fiber MEMS accelerometer 2 to fix the fiber MEMS accelerometer 2 to the pantograph 1;
two bilaterally symmetrical driving rods 26, wherein the driving rods 26 are fixedly arranged on the bolt 9, a gear 28 and a first bevel gear 19 are arranged on the driving rods 26, the upper side of the gear 28 is connected with a rack 27 in a meshing manner, and the rack 27 is arranged on the inner wall of the upper side of the device shell 12 in a sliding manner;
the double-shaft motor 21 is fixedly arranged on the inner wall of the front side of the device shell 12, the left side and the right side of the double-shaft motor 21 are fixedly connected with a rotating rod 20 through an output shaft, one end, far away from the double-shaft motor 21, of the rotating rod 20 is fixedly provided with a second bevel gear 22, and one end, far away from the double-shaft motor 21, of the second bevel gear 22 is in meshed connection with the first bevel gear 19;
the two bilateral symmetry inching rods 10 are fixedly arranged at the rear end of the double-shaft motor 21, the inching rods 10 are located on one sides, close to the racks 27, of the two racks 27, and the inching rods 10 can be in contact fit with the racks 27.
The working principle of the technical scheme is as follows: when the bolt 9 is loosened, the driving rod 26 rotates along with the loosening of the bolt 9 to drive the gear 28 to rotate, so as to drive the rack 27 meshed with the driving rod to move towards the center direction of the device shell 12, when the rack 27 is abutted to the inching rod 10, the double-shaft motor 21 is started, the rotating rod 20 rotates to drive the second bevel gear 22 to rotate, the first bevel gear 19 rotates, the driving rod 26 rotates reversely, and the bolt 9 is screwed tightly.
The beneficial effects of the above technical scheme are: through the set point move pole 10, when the bolt takes place the pine to take place to take off, can effectual start double-shaft motor 21 reset, avoided because optic fibre MEMS accelerometer 2, the pine that leads to after long-time the use takes off, the effectual security and the stability that improve the device.
Example 4
On the basis of the above embodiments 1 to 3, as shown in fig. 11 to 12, the device housing 12 further includes:
the device comprises two sliding chutes 14 which are bilaterally symmetrical, wherein the sliding chutes 14 are formed on the inner walls of the left side and the right side of a device shell 12;
the left end and the right end of the supporting plate 13 extend into the sliding grooves 14, and the supporting plate 13 is connected with the sliding grooves 14 in a sliding mode;
the device comprises two bilaterally symmetrical installation cavities 17, the installation cavities 17 are fixedly arranged on the inner walls of the left side and the right side of a device shell 12, sliding plates 24 are arranged in the installation cavities 17, the sliding plates 24 are slidably connected with the inner walls of the installation cavities 17, one sides of the sliding plates 24, far away from the two side walls of the device shell 12, are fixedly connected with two first springs 25, the first springs 25 are symmetrically arranged in the front and back direction, the other ends of the first springs 25 are fixedly arranged on the inner walls of the installation cavities 17, far away from the side walls of the device shell 12, the central positions of the sides of the sliding plates 24, far away from the two side walls of the device shell 12, are also fixedly connected with wire harnesses 29, first openings are formed in the installation cavities 17, and the wire harnesses 29 extend out of the installation cavities 17 from the openings;
the air bag type air conditioner comprises two first air pipes 16 which are bilaterally symmetrical, wherein the first air pipes 16 are fixedly arranged on the rear side wall of an installation cavity 17, a second opening is formed in the rear side of the installation cavity 17, the first air pipes 16 are communicated with the second opening, a first air bag 15 is communicated with the rear side of each first air pipe 16, and the first air bags 15 are abutted against a support plate 13;
the device comprises two bilaterally symmetrical wire wheels 30, wherein the wire wheels 30 are fixedly arranged on a driving rod 26, and a wire harness 29 is wound on the wire wheels 30.
The working principle of the technical scheme is as follows: when the driving rod 26 starts to rotate, the wire wheel 30 is driven to rotate, the wire harness 29 is pulled, so that the sliding plate 24 moves towards the direction away from the two side walls of the device shell 12, air in the installation cavity 17 enters the first air bag 15 through the first air pipe 16, the supporting plate 13 is driven to move, and the supporting plate 13 is enabled to be tightly attached to the optical fiber MEMS accelerometer 2.
The beneficial effects of the above technical scheme are: when bolt 9 takes place the pine and takes place to loosen, through the removal of backup pad 13, can effectually prevent because the optic fibre MEMS accelerometer 2 that the pine leads to leaves the mounted position, effectually avoided the vehicle to lead to phenomenons such as the pine after long-time the driving, improved the security of device.
Example 5
On the basis of the above embodiments 1 to 4, as shown in fig. 11 to 12, the front sides of the supporting plates 13 are symmetrically hinged with the connecting rods 23, the front sides of the connecting rods 23 are hinged with the first moving plate 53, the first moving plate 53 is slidably connected with the inner wall of the front side of the device housing 12, one side of the first moving plate 53, which is far away from the biaxial motor 21, is fixedly connected with the second spring 18, and the other end of the second spring 18 is fixedly connected to the left and right side walls of the device housing 12.
The working principle of the technical scheme is as follows: when the support plate 13 moves, the link 23 causes the first moving plate 53 to slide left and right on the inner wall of the front side of the device case 12, and the second spring 18 is stretched or compressed.
The beneficial effects of the above technical scheme are: through setting up connecting rod 23, can effectual support backup pad 13, and set up first movable plate 53 and second spring 18, can effectually make the removal of backup pad 13 become more stable, the effectual stability and the functionality that improve the device.
Example 6
On the basis of the above embodiments 1 to 5, as shown in fig. 13 to 14, the spring case 3 includes: the device comprises an upper barrel body 3a and a lower barrel body 3b, wherein the lower barrel body 3b is arranged in the upper barrel body 3a, a first pressing plate 33 is arranged in the upper barrel body 3a, a third opening is formed in the upper side wall of the upper barrel body 3a, the first pressing plate 33 extends out of the upper barrel body 3a from the third opening, and a third spring 35 is symmetrically and fixedly arranged on the lower surface of the first pressing plate 33;
a second pressing plate 36 is arranged in the lower cylinder 3b, a fourth opening is formed in the upper side wall of the lower cylinder 3b, the second pressing plate 36 extends out of the lower cylinder 3b from the fourth opening, the lower end of the third spring 35 is fixedly arranged on the upper surface of the second pressing plate 36, and connecting rods 37 are symmetrically arranged on the left and right of the lower surface of the second pressing plate 36;
a second moving plate 39, a first fixed plate 40 and a third moving plate 38 are sequentially arranged in the lower cylinder 3b from top to bottom, the second moving plate 39 and the third moving plate 38 are slidably connected with the inner wall of the lower cylinder 3b, and the first fixed plate 40 is fixedly connected with the inner wall of the lower cylinder 3 b; the upper surface of the second moving plate 39 is also provided with fourth springs 42 which are bilaterally symmetrical, and the upper ends of the fourth springs 42 are fixedly arranged on the inner wall of the upper side of the lower cylinder 3 b;
the connecting rod 37 downwards penetrates through the second moving plate 39 and the first fixing plate 40, the connecting rod 37 is fixedly connected with the penetrating position of the second moving plate 39, the connecting rod 37 is slidably connected with the penetrating position of the first fixing plate 40, the lower end of the connecting rod 37 is fixedly connected with the third moving plate 38, and the lower end of the third moving plate 38 is in contact fit with the optical fiber MEMS pressure sensor 8.
The working principle of the technical scheme is as follows: the first pressing plate 33 moves downward to drive the third spring 35 to compress and press the second pressing plate 36, the second pressing plate 36 moves downward to drive the connecting rod 37 to move downward to drive the second moving plate 39 to move downward, the fourth spring 42 stretches to drive the third moving plate 38 to press the optical fiber MEMS pressure sensor 8.
The beneficial effects of the above technical scheme are: through setting up third spring 35 and fourth spring 42, can effectually play the effect of buffering shock attenuation to the pantograph, and set up second movable plate 39 and third movable plate 38, can be accurate transmit the power that the pantograph 1 received to optic fibre MEMS pressure sensor 8, improved the functionality and the stability of device.
Example 7
On the basis of the above embodiments 1 to 6, as shown in fig. 13 to 14, the upper cylinder 3a is provided with the buffer cavities 31 in bilateral symmetry, and the buffer cavities 31 are provided with:
the buffer cavity comprises a first arc-shaped plate 52 and a second arc-shaped plate 43, the left end and the right end of the first arc-shaped plate 52 and the right end of the second arc-shaped plate 43 are both connected with the inner walls of the two sides of the buffer cavity 31 in a sliding manner, channels are arranged on the first arc-shaped plate 52 and the second arc-shaped plate 43, the lower end of the second arc-shaped plate 43 is fixedly connected with a fifth spring 49, the lower end of the fifth spring 49 is fixedly connected with the first arc-shaped plate 52, the lower end of the first arc-shaped plate 52 is fixedly connected with a sixth spring 50, and the lower end of the sixth spring 50 is fixedly connected with the inner wall of the lower side of the buffer cavity 31;
the gas storage cavity 45 is fixedly arranged in the buffer cavity 31, a fifth moving plate 46 is arranged in the gas storage cavity 45, the fifth moving plate 46 is connected with the inner wall of the gas storage cavity 45 in a sliding manner, the lower end of the fifth moving plate 46 is fixedly connected with a moving rod 47, a second gas pipe 32 is further connected to the gas storage cavity 45 in a penetrating manner, the second gas pipe 32 extends out of the gas storage cavity 45, the other end of the second gas pipe 32 is connected with a second gas bag 34 in a penetrating manner, the second gas bag 34 is fixedly arranged in the center of the upper surface of the second pressing plate 36, and the second gas bag 34 can be in contact fit with the first pressing plate 33;
a hydraulic cavity 41 is further arranged in the lower cylinder 3b, the hydraulic cavity 41 is located between the second moving plate 39 and the first fixing plate 40, the left side and the right side of the hydraulic cavity 41 are connected with hydraulic pipelines 51 in a penetrating manner, and the hydraulic pipelines 51 are connected with the buffer cavity 31 in a penetrating manner.
The working principle of the technical scheme is as follows: the second moving plate 39 moves downwards to drive the hydraulic oil in the hydraulic cavity 41 to enter the buffer cavity 31 through the hydraulic pipeline 51, the hydraulic oil flows to the first arc-shaped plate 52, the sixth spring 50 is stretched, then the hydraulic oil flows to the second arc-shaped plate 43 through the channel on the first arc-shaped plate 52, the fifth spring 49 is stretched, then the hydraulic oil flows to the fourth moving plate 44 through the channel on the second arc-shaped plate 43, the seventh spring 48 is stretched to drive the fourth moving plate 44 to move upwards, the moving rod 47 and the fifth moving plate 46 move upwards to push the air in the air storage cavity 45 to enter the second air bag 34 through the second air pipe 32, the second air bag 34 is blown to be large, and the second air bag 34 is made to be in contact with the first pressing plate 33.
The beneficial effects of the above technical scheme are: through setting up first arc 52 and second arc 43, can effectual increase hydraulic oil and the area of contact of first arc 52 and second arc 43, slow down the impact force, and set up second trachea 32 and second gasbag 34, can effectually alleviate the impact force of the external world to first pressure board 33, play buffering absorbing effect, the effectual functional and the security that have promoted the device.
Example 8
On the basis of any one of the above embodiments 1 to 7, the pressure hard spot detection device further includes:
an angle sensor: the optical fiber MEMS pressure sensor is arranged on the optical fiber MEMS pressure sensor 8 and used for detecting the connection angle of the optical fiber MEMS pressure sensor 8 and the first optical fiber;
a timer: the optical fiber MEMS pressure sensor is arranged on the optical fiber MEMS pressure sensor 8 and used for detecting the working time of the optical fiber MEMS pressure sensor 8;
controller, alarm are installed respectively on pantograph 1, the controller with angle sensor, time-recorder and alarm electricity are connected, the controller is based on angle sensor, time-recorder control the alarm work, including following step:
step 1: the controller obtains the transmission attenuation coefficient of the first optical fiber based on the angle sensor, the timer and the formula (2):
wherein K is the transmission attenuation coefficient of the first optical fiber; l is the total length of the first optical fiber; λ is the refractive index of the first optical fiber core; cos is the cosine value; alpha is the detection value of the angle sensor; tan is the tangent value; pi is the circumference ratio; r is the radius of the first optical fiber; beta is the total reflection critical angle of the interface of the first optical fiber core and the cladding; t is a timer detection value; t is a unit time; sin is the sine value;
step 2: and (3) comparing the transmission attenuation coefficient of the first optical fiber calculated by the formula (2) with the corresponding preset transmission attenuation coefficient, and controlling an alarm to give an alarm by the controller when the transmission attenuation coefficient of the first optical fiber calculated by the formula (2) is larger than the corresponding preset transmission attenuation coefficient.
In the formula
The optical fiber MEMS pressure sensor is used for indicating that a connection part of a first optical fiber and the optical fiber MEMS pressure sensor 8 generates a certain angle under the action of wind in the process that a vehicle continuously runs, and the angle has a certain influence on the transmission attenuation coefficient of the first optical fiber, wherein the transmission attenuation coefficient of the first optical fiber continuously decreases or increases along with the angle, the transmission attenuation coefficient of the first optical fiber of a fan continuously increases, (generally, the angle is 180 degrees), and if the radius of the first optical fiber is larger, the transmission attenuation coefficient of the first optical fiber becomes smaller, a thicker optical fiber needs to be selected under a proper condition, so that the transmission effect is more obvious;
assuming that the total length L of the first optical fiber is 5 m; the refractive index λ of the first optical fiber core is 1.47; the connection angle α of the fiber MEMS pressure sensor 8 and the first fiber is 75 °; the circumference ratio pi is 3.14; the radius r of the first optical fiber is 3 mm; the critical angle beta of total reflection of the interface of the first optical fiber core and the cladding is 61 degrees; the working time T of the optical fiber MEMS pressure sensor 8 is 5 h; the unit time t is 1 h; the transmission attenuation coefficient K of the first optical fiber is calculated to be 38.25, and if the corresponding preset transmission attenuation coefficient is 100, the alarm does not give an alarm.
The working principle and the beneficial effects of the calculation scheme are as follows: the transmission attenuation coefficient of the first optical fiber is calculated by using the formula (2), the controller compares the transmission attenuation coefficient of the first optical fiber calculated by the formula (2) with the corresponding preset transmission attenuation coefficient, when the transmission attenuation coefficient of the first optical fiber calculated by the formula (1) is larger than the corresponding preset transmission attenuation coefficient 100, the controller controls the alarm to give an alarm to prompt people that the connection condition is abnormal, the working condition of the sensor is checked in time, the abnormal alarm is realized by setting the alarm and the people are reminded to check the problems, and the safety can be effectively improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (10)
1. A pressure hard spot detection device, comprising: the system comprises an optical fiber MEMS pressure sensor (8), an optical fiber MEMS accelerometer (2), a roof distribution box (6) and an optical fiber demodulator (7), wherein the optical fiber MEMS pressure sensor (8) is connected with the roof distribution box (6) and the optical fiber demodulator (7) through a first optical fiber, and the optical fiber MEMS accelerometer (2) is connected with the roof distribution box (6) and the optical fiber demodulator (7) through a second optical fiber.
2. A pressure hard spot detection device according to claim 1, characterized in that the detection data of the fiber MEMS pressure sensor (8) and the fiber MEMS accelerometer (2) are collected, sent and stored by the fiber demodulator (7), and transmitted to the bow net diagnosis system in real time.
3. A pressure hard spot detection device according to claim 1, wherein the fiber optic MEMS pressure sensor (8) and the fiber optic MEMS accelerometer (2) are both arranged on a pantograph (1), the pantograph (1) comprising: the device comprises a spring cylinder (3) and a carbon slide bar (4), wherein the fiber MEMS accelerometer (2) is installed at the lower part of the carbon slide bar (4), and the fiber MEMS pressure sensor (8) is installed in the spring cylinder (3).
4. A pressure hard spot detection device according to claim 3, characterized in that the pantograph (1) and the roof distribution box (6) are mounted on top of the vehicle compartment (5), and the optical fiber demodulator (7) is mounted inside the vehicle compartment (5).
5. A pressure hard spot detection device according to claim 3, characterized in that the roof distribution box (6) is a stainless steel sheet metal part with a protection rating of IP 66.
6. A pressure hard spot sensing apparatus according to claim 1, further comprising: -a check device (11), said check device (11) comprising: device casing (12), device casing (12) fixed connection is in optic fibre MEMS accelerometer (2) and pantograph (1) junction, just optic fibre MEMS accelerometer (2) set up in device casing (12), be equipped with in device casing (12):
two bilaterally symmetrical bolts (9), wherein the bolts (9) penetrate through mounting holes in the fiber MEMS accelerometer (2) to fix the fiber MEMS accelerometer (2) to the pantograph (1);
the driving device comprises two driving rods (26) which are bilaterally symmetrical, wherein the driving rods (26) are fixedly arranged on a bolt (9), a gear (28) and a first bevel gear (19) are arranged on the driving rods (26), the upper side of the gear (28) is connected with a rack (27) in a meshing manner, and the rack (27) is arranged on the inner wall of the upper side of the device shell (12) in a sliding manner;
the device comprises a double-shaft motor (21), wherein the double-shaft motor (21) is fixedly arranged on the inner wall of the front side of a device shell (12), the left side and the right side of the double-shaft motor (21) are fixedly connected with rotating rods (20) through output shafts, one end, far away from the double-shaft motor (21), of each rotating rod (20) is fixedly provided with a second bevel gear (22), and one end, far away from the double-shaft motor (21), of each second bevel gear (22) is in meshed connection with a first bevel gear (19);
two bilateral symmetry's inching pole (10), inching pole (10) are fixed to be set up in biax motor (21) rear end, just inching pole (10) are located two rack (27) one side that is close to each other, just inching pole (10) can with rack (27) contact cooperation.
7. A pressure hard spot detection apparatus according to claim 6, characterized in that inside said device housing (12) there are further provided:
the device comprises two sliding chutes (14) which are bilaterally symmetrical, wherein the sliding chutes (14) are formed in the inner walls of the left side and the right side of a device shell (12);
the left end and the right end of the supporting plate (13) extend into the sliding groove (14), and the supporting plate (13) is connected with the sliding groove (14) in a sliding mode;
two bilaterally symmetrical mounting cavities (17), wherein the mounting cavities (17) are fixedly arranged on the inner walls of the left side and the right side of the device shell (12), a sliding plate (24) is arranged in the mounting cavity (17), the sliding plate (24) is connected with the inner wall of the mounting cavity (17) in a sliding way, two first springs (25) are fixedly connected to one side of the sliding plate (24) far away from the two side walls of the device shell (12), the first springs (25) are symmetrically arranged in front and back, and the other end of the first spring (25) is fixedly arranged on the inner wall of the side wall of the installation cavity (17) far away from the device shell (12), the central position of one side of the sliding plate (24) far away from the two side walls of the device shell (12) is also fixedly connected with a wiring harness (29), a first opening is formed in the mounting cavity (17), and the wiring harness (29) extends out of the mounting cavity (17) from the opening;
the air bag comprises two first air pipes (16) which are bilaterally symmetrical, wherein the first air pipes (16) are fixedly arranged on the rear side wall of an installation cavity (17), a second opening is formed in the rear side of the installation cavity (17), the first air pipes (16) are communicated with the second opening, a first air bag (15) is communicated with the rear side of each first air pipe (16), and the first air bag (15) abuts against a support plate (13);
the wire winding machine comprises two wire wheels (30) which are bilaterally symmetrical, wherein the wire wheels (30) are fixedly arranged on a driving rod (26), and a wire harness (29) is wound on the wire wheels (30).
8. The pressure hard spot detection device according to claim 7, wherein the support plate (13) is hinged with a connecting rod (23) at the front side in a bilateral symmetry manner, the connecting rod (23) is hinged with a first moving plate (53) at the front side, the first moving plate (53) is connected with the inner wall of the front side of the device shell (12) in a sliding manner, the side of the first moving plate (53) far away from the double-shaft motor (21) is fixedly connected with the second spring (18), and the other end of the second spring (18) is fixedly connected with the left side wall and the right side wall of the device shell (12).
9. A pressure hard spot detection device according to claim 3, characterized in that said spring cartridge (3) comprises: the device comprises an upper cylinder body (3a) and a lower cylinder body (3b), wherein the lower cylinder body (3b) is arranged in the upper cylinder body (3a), a first pressing plate (33) is arranged in the upper cylinder body (3a), a third opening is formed in the upper side wall of the upper cylinder body (3a), the first pressing plate (33) extends out of the upper cylinder body (3a) from the third opening, and third springs (35) are symmetrically and fixedly arranged on the lower surface of the first pressing plate (33);
a second pressing plate (36) is arranged in the lower cylinder (3b), a fourth opening is formed in the upper side wall of the lower cylinder (3b), the second pressing plate (36) extends out of the lower cylinder (3b) from the fourth opening, the lower end of a third spring (35) is fixedly arranged on the upper surface of the second pressing plate (36), and connecting rods (37) are symmetrically arranged on the left and right of the lower surface of the second pressing plate (36);
a second moving plate (39), a first fixed plate (40) and a third moving plate (38) are sequentially arranged in the lower cylinder (3b) from top to bottom, the second moving plate (39) and the third moving plate (38) are in sliding connection with the inner wall of the lower cylinder (3b), and the first fixed plate (40) is fixedly connected with the inner wall of the lower cylinder (3 b); the upper surface of the second moving plate (39) is also provided with fourth springs (42) in a bilateral symmetry mode, and the upper ends of the fourth springs (42) are fixedly arranged on the inner wall of the upper side of the lower cylinder (3 b);
connecting rod (37) pass second movable plate (39) and first fixed plate (40) downwards, connecting rod (37) with second movable plate (39) run through position fixed connection, connecting rod (37) with first fixed plate (40) run through position sliding connection, connecting rod (37) lower extreme fixed connection third movable plate (38), third movable plate (38) lower extreme and optic fibre MEMS pressure sensor (8) contact cooperation.
10. A pressure hard spot detection device according to claim 9, wherein the upper cylinder (3a) is provided with a buffer chamber (31) in bilateral symmetry, and the buffer chamber (31) is provided with:
the buffer cavity structure comprises a first arc-shaped plate (52) and a second arc-shaped plate (43), wherein the left end and the right end of the first arc-shaped plate (52) and the second arc-shaped plate (43) are both in sliding connection with the inner walls of the two sides of the buffer cavity (31), channels are arranged on the first arc-shaped plate (52) and the second arc-shaped plate (43), the lower end of the second arc-shaped plate (43) is fixedly connected with a fifth spring (49), the lower end of the fifth spring (49) is fixedly connected with the first arc-shaped plate (52), the lower end of the first arc-shaped plate (52) is fixedly connected with a sixth spring (50), and the lower end of the sixth spring (50) is fixedly connected with the inner wall of the lower side of the buffer cavity (31);
seventh springs (48) are symmetrically arranged at the left and right ends of the upper end of the second arc-shaped plate (43), the upper end of each seventh spring (48) is fixedly connected with a fourth moving plate (44), each fourth moving plate (44) is connected with the inner wall of the buffer cavity (31) in a sliding mode, a moving rod (47) is further fixedly connected at the upper end of each fourth moving plate (44), and each moving rod (47) extends into the corresponding gas storage cavity (45);
the gas storage cavity (45) is fixedly arranged in the buffer cavity (31), a fifth moving plate (46) is arranged in the gas storage cavity (45), the fifth moving plate (46) is connected with the inner wall of the gas storage cavity (45) in a sliding mode, the lower end of the fifth moving plate (46) is fixedly connected with a moving rod (47), a second gas pipe (32) is further connected onto the gas storage cavity (45) in a penetrating mode, the second gas pipe (32) extends out of the gas storage cavity (45), the other end of the second gas pipe (32) is connected with a second gas bag (34) in a penetrating mode, the second gas bag (34) is fixedly arranged in the center of the upper surface of a second pressing plate (36), and the second gas bag (34) can be in contact fit with the first pressing plate (33);
still be equipped with hydraulic pressure chamber (41) in barrel (3b) down, hydraulic pressure chamber (41) are located between second movable plate (39) and first fixed plate (40), hydraulic pressure chamber (41) both sides through connection hydraulic pressure pipeline (51), hydraulic pressure pipeline (51) through connection buffer chamber (31).
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116105845A (en) * | 2023-04-10 | 2023-05-12 | 中安合顺物联网技术(山东)有限公司 | Multidirectional measuring equipment for safety inspection |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140265740A1 (en) * | 2011-10-13 | 2014-09-18 | Nuovo Pignone S.P.A. | Accelerometer |
| CN110806236A (en) * | 2019-11-20 | 2020-02-18 | 北京市地铁运营有限公司地铁运营技术研发中心 | Dynamic detection device for bow net pressure and hard points |
| CN211062597U (en) * | 2019-12-10 | 2020-07-21 | 南京林业大学 | Telescopic electromagnetic remote switch refitting device |
| CN212073978U (en) * | 2020-03-04 | 2020-12-04 | 龙工（福建）挖掘机有限公司 | Automatic car washing equipment |
| CN112161577A (en) * | 2020-09-21 | 2021-01-01 | 北京运达华开科技有限公司 | Contact net hard spot detection method and system |
| CN112719874A (en) * | 2021-01-12 | 2021-04-30 | 成都运曼泽商贸有限公司 | Forging press drive chain overhauls device |
-
2022
- 2022-04-20 CN CN202210419688.1A patent/CN114877932B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140265740A1 (en) * | 2011-10-13 | 2014-09-18 | Nuovo Pignone S.P.A. | Accelerometer |
| CN110806236A (en) * | 2019-11-20 | 2020-02-18 | 北京市地铁运营有限公司地铁运营技术研发中心 | Dynamic detection device for bow net pressure and hard points |
| CN211062597U (en) * | 2019-12-10 | 2020-07-21 | 南京林业大学 | Telescopic electromagnetic remote switch refitting device |
| CN212073978U (en) * | 2020-03-04 | 2020-12-04 | 龙工（福建）挖掘机有限公司 | Automatic car washing equipment |
| CN112161577A (en) * | 2020-09-21 | 2021-01-01 | 北京运达华开科技有限公司 | Contact net hard spot detection method and system |
| CN112719874A (en) * | 2021-01-12 | 2021-04-30 | 成都运曼泽商贸有限公司 | Forging press drive chain overhauls device |
Non-Patent Citations (2)
| Title |
|---|
| ASHUTOSH RAJPUT 等: "Finite element study of cyclic plasticity near a subsurface inclusion under rolling contact and macro-residual stresses", 《JOURNAL OF ALLOYS AND COMPOUNDS》 * |
| 赵志 刘洋: "弓网监测系统中测量接触力硬点的研究", 《科学技术创新》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116105845A (en) * | 2023-04-10 | 2023-05-12 | 中安合顺物联网技术(山东)有限公司 | Multidirectional measuring equipment for safety inspection |
| CN116105845B (en) * | 2023-04-10 | 2023-06-27 | 中安合顺物联网技术(山东)有限公司 | Multidirectional measuring equipment for safety inspection |
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