CN113588542A - Constant-speed rotation and anti-lock controller for wheel type high-speed anti-skid instrument - Google Patents
Constant-speed rotation and anti-lock controller for wheel type high-speed anti-skid instrument Download PDFInfo
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- CN113588542A CN113588542A CN202110871586.9A CN202110871586A CN113588542A CN 113588542 A CN113588542 A CN 113588542A CN 202110871586 A CN202110871586 A CN 202110871586A CN 113588542 A CN113588542 A CN 113588542A
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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Abstract
The invention discloses a constant-speed rotation and anti-lock controller for a wheel type high-speed anti-skid instrument, which comprises a U-shaped wheel carrier, wherein two supporting arms of the wheel carrier are provided with sliding columns, and the wheel carrier moves up and down along the sliding columns; a load sensor group is fixed at the upper end of the wheel carrier, and the upper end of the load sensor group is connected to the hydraulic assembly; an anti-sliding main shaft which is transversely arranged is rotatably connected between the supporting arms, a spline sleeve is sleeved on the anti-sliding main shaft, and a fixed seat is arranged on the spline sleeve and used for fixing a tire; one end of the anti-skid main shaft is fixedly connected with a transmission shaft, the other end of the transmission shaft is fixedly connected to an output shaft of a hydraulic motor, and the hydraulic motor is connected to an external variable frequency oil pump; the transmission shaft is sleeved with a torque sensor and an electromagnetic brake. The constant-speed rotation and anti-lock controller adopting the structure reduces noise and vibration, has good simulation effect, and realizes brake simulation of the high-speed wheel set.
Description
Technical Field
The invention relates to the technical field of high-speed anti-skid instruments, in particular to a constant-speed rotation and anti-lock controller for a wheel type high-speed anti-skid instrument.
Background
To better study the anti-skid performance of the road under the coupling effect of multiple physical fields, engineers usually use an anti-skid device assembled by rotating rubber sheets (or real tires) and related components to test the surface of a test piece, and use various sensors to collect data such as tire speed, brake friction force, inertia force and the like, so as to calculate the tire-road friction coefficient. However, most of the existing high-speed anti-skid testers are designed by using rubber sheets, the highest simulation speed is slow, and particularly, the simulation of an airplane tire braking scene cannot be responded. The existing anti-skid test equipment using real tires is almost of a driven structure, so that the speed is low, the speed control is delayed, and experimental data do not accord with the real situation.
Based on the method, the real tire which rotates actively is used for simulating complex working conditions (temperature, load, speed, medium and the like) under the coupling action of multiple physical fields, and the technical shortages of the current equipment are further compensated. Meanwhile, the test performed by the equipment has the excellent characteristics of short period, material saving, high repeatability, high precision and the like, and has wide application prospect.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
a constant-speed rotation and anti-lock controller for a wheel type high-speed anti-skid instrument comprises a U-shaped wheel carrier, wherein sliding columns are arranged on two supporting arms of the wheel carrier, and the wheel carrier moves up and down along the sliding columns; a load sensor group is fixed at the upper end of the wheel carrier, the upper end of the load sensor group is connected to a hydraulic component, and the hydraulic component is used for driving the wheel carrier to lift;
an anti-sliding main shaft which is transversely arranged is rotatably connected between the supporting arms, a spline sleeve is sleeved on the anti-sliding main shaft, and a fixed seat is arranged on the spline sleeve and used for fixing a tire;
one end of the anti-skid main shaft is fixedly connected with a transmission shaft, and the other end of the transmission shaft is fixedly connected to an output shaft of the hydraulic motor; the transmission shaft is sleeved with a torque sensor and an electromagnetic brake, the torque sensor is used for measuring the rotating speed of the transmission shaft, and the electromagnetic brake is used for intermittently braking the transmission shaft; an electromagnetic coil, a brake pad and a brake disc are arranged in the electromagnetic brake, and the transmission shaft drives the brake disc to operate;
the hydraulic motor is connected to an external variable frequency oil pump, and the variable frequency oil pump controls the flow and pressure of pump oil so as to realize multi-gear speed regulation of the hydraulic motor.
Preferably, the two ends of the antiskid main shaft are rotatably connected to the wheel carrier through bearings, the wheel carrier is provided with an antiskid bearing seat corresponding to the bearing position, a groove is formed in the antiskid bearing seat, the bearings are fixed in the groove, and the friction force applied to the rotation of the antiskid main shaft is reduced through the cooperation of the antiskid bearing seat and the bearings.
Preferably, the load sensor group comprises a tension sensor and a pressure sensor, the pressure sensor is mounted at the upper end of the wheel frame and connected to the hydraulic assembly, and the sensor data is used for measuring the sliding distance in the brake simulation and calculating the friction factor.
The constant-speed rotation and anti-lock controller with the structure can realize the speed simulation of 150km/h at most, and the speed control is accurate; the influence of noise and vibration on the test is reduced, the simulation effect is better, and the technical problem of simulating brake sliding on a small-size test piece is well solved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is an installation schematic of an embodiment of the invention.
Reference numerals
1. A traveler; 2. a wheel carrier; 3. a bearing seat; 4. an anti-skid spindle; 5. a fixed seat; 6. a tension sensor; 7. a pressure sensor; 8. a torque sensor; 9. a power bracket; 10. a hydraulic motor; 11. a spline housing; 12. a drive shaft; 13. an electromagnetic brake; 14. connecting sleeves; 15. a fixed mount; 16. a column; 17. a rut plate test piece; 18. a hydraulic assembly; 19. a load sensor group; 20. a controller body; 21. a tire; 22. and (5) moving the trolley.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the embodiment.
The constant-speed rotation and anti-lock controller for the wheel type high-speed anti-skid instrument comprises a U-shaped wheel carrier 2, a sliding column 1 is arranged on two supporting arms of the wheel carrier 2, and the wheel carrier 2 moves up and down along the sliding column 1. The upper end of the wheel carrier 2 is fixed with a load sensor group 19, and the upper end of the load sensor group 19 is connected to the hydraulic component 18. The up-and-down movement of the wheel carrier 2 is achieved by driving the hydraulic assembly 18.
The load sensor group 19 comprises a tension sensor 6 and a pressure sensor 7, the pressure sensor 7 is installed at the upper end of the wheel frame 2, and the tension sensor 6 is connected to the hydraulic assembly 18.
And an anti-skid main shaft 4 which is transversely arranged is rotatably connected between the supporting arms. Specifically, the two ends of the antiskid main shaft 4 are rotatably connected to the wheel carrier 2 through bearings, the antiskid bearing seat 3 is installed on the wheel carrier 2 corresponding to the bearing position, a groove is arranged in the antiskid bearing seat 3, and the bearings are fixed in the groove.
The anti-skidding main shaft 4 is sleeved with a spline sleeve 11, and the spline sleeve 11 is switched, so that free switching of multiple working conditions is guaranteed, and mutual influence is avoided. The spline housing 11 is provided with a fixing seat 5, and the fixing seat 5 is used for fixing the tire 21.
One end of the antiskid main shaft 4 is fixedly connected with a transmission shaft 12, and the other end of the transmission shaft 12 is fixedly connected to an output shaft of the hydraulic motor 10. The anti-skid main shaft 4 and the transmission shaft 12, and the transmission shaft 12 and the output shaft are connected and reinforced through connecting sleeves 14.
The transmission shaft 12 is sleeved with the torque sensor 8 and the electromagnetic brake 13, the electromagnetic brake 13 and the hydraulic motor 10 are further fixed on the power support 9, and the power support 9 is fixed on the wheel carrier 2. The torsion sensor 8 is used for sensing the torsion moment of the anti-skid spindle 4, converting the torsion moment into an accurate electric signal and outputting the accurate electric signal, and finally realizing accurate sensing of the speed of the tire 21.
The electromagnetic brake 13 is used to intermittently brake the tire 21 rotating at a high speed, thereby realizing a braking simulation of the tire. An electromagnetic coil, a brake pad and a brake disc are arranged inside the electromagnetic brake 13, and the transmission shaft 12 drives the brake disc to operate. In the braking simulation experiment, when the current of the electromagnetic brake 13 is cut off, the brake pad is separated from the brake disc, and friction torque is generated between the brake disc and the brake pad, so that the transmission shaft 12 connected with the brake disc is driven to stop rotating quickly.
The hydraulic motor 10 adopts a position-division connection mode and an external variable frequency oil pump, and the position-division connection mode can obviously reduce the interference of noise and vibration of the hydraulic motor 10 to a test. In the speed simulation experiment, the rotating speed of the oil pump is changed by accurately controlling a frequency converter signal in the frequency conversion oil pump, so that the flow and the pressure of pump oil are adjusted, the starting torque of the hydraulic motor 10 is controlled, and the multi-gear speed stable output of the hydraulic motor 10 is finally realized.
During assembly, the upper end and the lower end of the sliding column 1 are fixed on the upright column 16 through the fixing frame 15, the upper end of the load sensor is connected to the hydraulic assembly 18, and the tire 21 is installed on the fixed seat 5. Meanwhile, the movable trolley 22 is fixed under the tire 21, the rut plate test piece 17 is installed on the movable trolley 22, and an inertial sensor is arranged at the position of the movable trolley 22 corresponding to the rut plate test piece 17.
The controller of the invention can realize three main functions of 0-150km/h multi-gear high-speed rotation test, constant-speed tire 21-rutting plate test piece 17 dynamic friction coefficient test and small-size rutting plate test piece 17 brake sliding simulation, and the specific implementation mode is as follows:
1. and (3) multi-gear high-speed rotation test: the controller can realize multi-gear control of the linear speed of the test wheel between 0km/h and 150 km/h. When a fixed speed test is required, setting a speed value and starting a variable frequency oil pump; the hydraulic motor 10 receives a fixed rotating speed instruction, and the rotating power required by the fixed rotating speed is transmitted to the tire 21 through the connecting sleeve 14, the transmission shaft 12, the anti-skid main shaft 4 and the spline housing 11 in sequence, so that the fixed rotating speed control is realized. Meanwhile, the torque sensor 8 transmits the real-time rotating speed and reads the real-time rotating speed on a display and a computer terminal.
2. Testing the dynamic friction coefficient of a constant-speed tire-track plate test piece: after the tire 21 reaches a specified speed, the hydraulic unit 18 is driven to cause the controller body 20 and the tire 21 to synchronously slide downward. When a tire 21 carrying a constant speed is in contact with the rut plate test piece 17, the torsion sensor 8 and the load sensor group 19 transmit in real time, the test values are recorded on a computer and a display, and the friction coefficient is calculated.
3. The small-size rut plate test piece brake sliding simulation and anti-sliding characterization test: inputting the rotation speed and the applied load value, the hydraulic assembly 18 drives the controller body 20 and the tire 21 to slip downward integrally. When the tire 21 contacts the rut plate test piece 17, the electromagnetic brake 13 is opened and transmitted to the tire 21 through the connecting sleeve 14, the spline housing 11 and the anti-skid spindle 4. The tire 21 performs anti-lock braking simulation on the rut plate test piece 17, the electromagnetic brake 13 performs intermittent braking, and meanwhile, signal transmission such as pressure load force, test piece inertia contact force, torque, rotating speed and the like is performed on a computer and a display. And calculating the sliding distance and the friction coefficient through the transmitted signals, and performing anti-sliding representation on the test piece.
The above is a specific embodiment of the present invention, but the scope of the present invention should not be limited thereto. Any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention, and therefore, the protection scope of the present invention is subject to the protection scope defined by the appended claims.
Claims (3)
1. The utility model provides a wheel type high speed anti-skid instrument is with constant speed rotation and anti-lock controller which characterized in that: the device comprises a U-shaped wheel carrier, wherein sliding columns are arranged on two supporting arms of the wheel carrier, and the wheel carrier moves up and down along the sliding columns; a load sensor group is fixed at the upper end of the wheel carrier, the upper end of the load sensor group is connected to a hydraulic component, and the hydraulic component is used for driving the wheel carrier to lift;
an anti-sliding main shaft which is transversely arranged is rotatably connected between the supporting arms, a spline sleeve is sleeved on the anti-sliding main shaft, and a fixed seat is arranged on the spline sleeve and used for fixing a tire;
one end of the anti-skid main shaft is fixedly connected with a transmission shaft, and the other end of the transmission shaft is fixedly connected to an output shaft of the hydraulic motor; the transmission shaft is sleeved with a torque sensor and an electromagnetic brake, the torque sensor is used for measuring the rotating speed of the transmission shaft, and the electromagnetic brake is used for intermittently braking the transmission shaft; an electromagnetic coil, a brake pad and a brake disc are arranged in the electromagnetic brake, and the transmission shaft drives the brake disc to operate;
the hydraulic motor is connected to an external variable frequency oil pump, and the variable frequency oil pump controls the flow and pressure of the oil pump so as to realize multi-gear speed regulation of the hydraulic motor.
2. The constant speed rotation and anti-lock controller for a wheeled high speed antiskid device according to claim 1, wherein: the anti-skidding main shaft is characterized in that two ends of the anti-skidding main shaft are rotatably connected to the wheel carrier through bearings, anti-skidding bearing seats are installed on the wheel carrier corresponding to the positions of the bearings, grooves are formed in the anti-skidding bearing seats, the bearings are fixed in the grooves, and the anti-skidding bearing seats and the bearings are matched to reduce friction force applied to the anti-skidding main shaft in rotation.
3. The constant speed rotation and anti-lock controller for a wheeled high speed antiskid device according to claim 1, wherein: the load sensor group comprises a tension sensor and a pressure sensor, the pressure sensor is installed at the upper end of the wheel frame, the tension sensor is connected to the hydraulic assembly, and data measured by the sensors are used for calculating the sliding distance and the friction factor in brake simulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110871586.9A CN113588542A (en) | 2021-07-30 | 2021-07-30 | Constant-speed rotation and anti-lock controller for wheel type high-speed anti-skid instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110871586.9A CN113588542A (en) | 2021-07-30 | 2021-07-30 | Constant-speed rotation and anti-lock controller for wheel type high-speed anti-skid instrument |
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| CN113588542A true CN113588542A (en) | 2021-11-02 |
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| CN202110871586.9A Pending CN113588542A (en) | 2021-07-30 | 2021-07-30 | Constant-speed rotation and anti-lock controller for wheel type high-speed anti-skid instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115655867A (en) * | 2022-11-22 | 2023-01-31 | 哈尔滨工业大学 | Mechanical controller with vertical load application and horizontal circumferential rotation functions |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532934A (en) * | 2009-04-21 | 2009-09-16 | 华南理工大学 | Method for testing accelerating and loading of main drive wheel type pavement materials and device |
| CN102494993A (en) * | 2011-12-13 | 2012-06-13 | 重庆交通大学 | Dynamic frictional force testing system and dynamic frictional force testing method of pavement materials |
| CN105891107A (en) * | 2016-06-29 | 2016-08-24 | 重庆交通大学 | Device and method for testing friction performance of pavement material |
| CN106769837A (en) * | 2016-11-25 | 2017-05-31 | 哈尔滨工业大学 | Bitumen Pavement Anti-Skid Performance test platform and the method that pavement skid resistance condition is evaluated using the platform under a kind of icy conditions |
| CN107238541A (en) * | 2017-05-08 | 2017-10-10 | 华南理工大学 | A kind of accelerated loading device and method for ground surface material laboratory test |
| CN108508190A (en) * | 2018-04-18 | 2018-09-07 | 长沙理工大学 | A kind of vehicle tracking test instrument under simulation braking state |
| CN111751271A (en) * | 2020-07-07 | 2020-10-09 | 吉小龙 | Road surface skid resistance decay detection device |
| CN112098250A (en) * | 2020-09-17 | 2020-12-18 | 哈尔滨工业大学 | Road complex working condition wheel type polishing and anti-skid integrated machine |
-
2021
- 2021-07-30 CN CN202110871586.9A patent/CN113588542A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532934A (en) * | 2009-04-21 | 2009-09-16 | 华南理工大学 | Method for testing accelerating and loading of main drive wheel type pavement materials and device |
| CN102494993A (en) * | 2011-12-13 | 2012-06-13 | 重庆交通大学 | Dynamic frictional force testing system and dynamic frictional force testing method of pavement materials |
| CN105891107A (en) * | 2016-06-29 | 2016-08-24 | 重庆交通大学 | Device and method for testing friction performance of pavement material |
| CN106769837A (en) * | 2016-11-25 | 2017-05-31 | 哈尔滨工业大学 | Bitumen Pavement Anti-Skid Performance test platform and the method that pavement skid resistance condition is evaluated using the platform under a kind of icy conditions |
| CN107238541A (en) * | 2017-05-08 | 2017-10-10 | 华南理工大学 | A kind of accelerated loading device and method for ground surface material laboratory test |
| CN108508190A (en) * | 2018-04-18 | 2018-09-07 | 长沙理工大学 | A kind of vehicle tracking test instrument under simulation braking state |
| CN111751271A (en) * | 2020-07-07 | 2020-10-09 | 吉小龙 | Road surface skid resistance decay detection device |
| CN112098250A (en) * | 2020-09-17 | 2020-12-18 | 哈尔滨工业大学 | Road complex working condition wheel type polishing and anti-skid integrated machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115655867A (en) * | 2022-11-22 | 2023-01-31 | 哈尔滨工业大学 | Mechanical controller with vertical load application and horizontal circumferential rotation functions |
| CN115655867B (en) * | 2022-11-22 | 2024-04-30 | 哈尔滨工业大学 | Mechanical controller with vertical load application and horizontal circumferential rotation functions |
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