CN110987262A - Linear motor normal force and traction force detection platform - Google Patents
Linear motor normal force and traction force detection platform Download PDFInfo
- Publication number
- CN110987262A CN110987262A CN201911162166.2A CN201911162166A CN110987262A CN 110987262 A CN110987262 A CN 110987262A CN 201911162166 A CN201911162166 A CN 201911162166A CN 110987262 A CN110987262 A CN 110987262A
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- CN
- China
- Prior art keywords
- linear motor
- force
- guide rail
- test trolley
- normal force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/13—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the tractive or propulsive power of vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/13—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the tractive or propulsive power of vehicles
- G01L5/136—Force sensors associated with a vehicle traction coupling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model provides a testing platform of linear electric motor normal force and traction force, includes at least one experimental dolly, guide rail, F rail, force sensor, safety rope and pressure sensor, force sensor and safety rope are located the guide rail both ends respectively, experimental dolly is placed on the guide rail, the top intermediate position of guide rail is laid to the F rail, be equipped with the fixing base that is used for installing linear electric motor on the experimental dolly, the one end and the force sensor of experimental dolly are connected, and its other end and safety rope are connected, pressure sensor is located one side of guide rail. The linear motor is arranged on the test trolley, the output tension of the linear motor can be measured by the tension sensor when the test trolley is electrified, and the normal force of the linear motor is measured by the change of the force measured by the pressure sensor, so that the detection of the traction force and the normal force of the linear motor is realized.
Description
Technical Field
The invention relates to the technical field of magnetic suspension linear motor testing, in particular to a detection platform for normal force and traction force of a linear motor.
Technical Field
With the development of magnetic levitation technology, the traffic travel modes of people are increased.
Due to the characteristics of low running noise, high speed and the like of the maglev train, the maglev train is becoming one of the preferable modes for relieving traffic pressure in cities and also becoming one of the important traffic modes for connecting large-scale urban groups. This results in an increasing market demand for magnetic levitation vehicles, and at the same time, higher and higher speeds are also required for magnetic levitation vehicles. In order to ensure the consistency of theoretical calculation and practical application of the linear motor, shorten the development period of the linear motor and improve the success rate of research and development of the linear motor, a linear motor test platform is needed to be developed, before the loading operation of the linear motor, the traction force and the normal force of the linear motor are detected, and the loading test cost of the existing linear motor is high.
Disclosure of Invention
The invention aims to solve the technical problems that the loading test cost of the linear motor is reduced, and the detection platform for the normal force and the traction force of the linear motor is simple to operate and is closer to the practical use condition.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a testing platform of linear electric motor normal force and traction force, includes at least one experimental dolly, guide rail, F rail, force sensor, safety rope and pressure sensor, force sensor and safety rope are located the guide rail both ends respectively, experimental dolly is placed on the guide rail its characterized in that: the F rail is laid at the middle position above the guide rail, a fixed seat used for installing the linear motor is arranged on the test trolley, one end of the test trolley is connected with the tension sensor, the other end of the test trolley is connected with the safety rope, and the pressure sensor is located on one side of the guide rail.
Further, the linear motor to be detected is fixed on a linear motor fixing seat of the test trolley through a bolt.
Furthermore, a walking wheel is arranged on the test trolley, the test trolley moves along the guide rail through the walking wheel, and the pressure sensor is fixed on the guide rail.
Furthermore, guide wheels are arranged on two sides of the test trolley. Through adjusting the guide wheel, the coincidence of the center plane of the linear motor and the F rail is realized, so that the linear motor and the F rail are ensured to have sufficient induction area.
Furthermore, L-shaped baffles are arranged on two sides of the guide rail. The linear motor can be ensured to keep linear motion and the test trolley is prevented from being flushed out of the test platform.
Further, the test trolley is made of a magnetism isolating material.
Furthermore, the test trolley is made of stainless steel materials capable of isolating magnetism.
Compared with the prior art, the linear motor test platform has the characteristics of compact structure, flexible combination, high matching degree with the real use occasion of the linear motor, high test accuracy and the like.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a guide rail in an embodiment of the invention;
FIG. 3 is a schematic structural view of a test cart according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a traveling wheel on the test trolley;
FIG. 5 is a schematic view of a guide wheel structure on the test trolley;
FIG. 6 is an enlarged view of the structure at I in FIG. 1;
FIG. 7 is an enlarged view of the structure at point II in bitmap 1;
fig. 8 is an enlarged view of the structure at the position III in fig. 1.
In the figure, 1, a test trolley, 2, a guide rail, 3, a connecting shaft, 4, a pin shaft, 5, an F rail, 6, a tension sensor, 7, a fixed seat, 8, a safety rope, 9, an L-shaped baffle, 10, a traveling wheel, 11, a frame, 12, a fixed seat, 13, a lifting ring, 14, a mounting seat, 15, a guide wheel, 16, a first nut, 17, a screw rod, 18, a first bearing, 19, a second nut, 20, a full-thread screw rod, 21, a second bearing, 22 and a pressure sensor.
Detailed Description
The present invention is further illustrated by the following examples.
Referring to fig. 1-8, the present embodiment includes 5 test carts 1, a guide rail 2, an F rail 5, a tension sensor 6, a fixing base 7, a safety rope 8, and a pressure sensor 22.
The test trolley 5 mainly comprises a frame 11, a travelling wheel 10, a guide wheel 15, a lifting ring 13, a mounting seat 14 and the like.
The test trolley 1 is placed on the guide rail 2, and the F rail 5 is fixed in the middle above the guide rail 2 and connected with the guide rail 2 through bolts. The front and the rear adjacent test trolleys are connected through a connecting shaft 3, and the connecting shaft 3 is connected with the test trolleys 1 at two ends through a pin shaft 4. One end of the test trolley 1 is connected with the tension sensor 6 through a pin shaft 4, the other end of the test trolley 1 is connected with the safety rope 8 through the pin shaft 4, and the test trolley 1 is connected with the linear motor to be detected through a bolt. The fixing seat 12 for mounting the linear motor to be detected on the test trolley 1 is made of stainless steel materials, and can effectively isolate magnetism. And connecting seats 14 are arranged at two ends of the test trolley 5 and are used for fixing the test trolley with the connecting shaft 3. Pressure sensor 22 is fixed in on the guide rail 2, at the in-process that experimental dolly 1 marched, walking wheel 10 is through pressure sensor 22 during the top, and pressure sensor 22 can record the normal force that linear electric motor received, and walking wheel 10 is connected through two upper and lower first nuts 16 with experimental dolly 5, adopts two nut structures, and the position of nut about the accessible adjustment realizes experimental dolly and the adjustment of F rail height, and walking wheel and leading wheel all are equipped with anti-rotation structure.
The guide wheel 15 and the frame 11 are connected by two upper and lower second nuts 19. The screw 17 of the guide wheel 15 is provided with a notch, which can effectively prevent the guide wheel 15 from rotating, and the guide wheel 15 is made of a full-thread screw 20.
An L-shaped baffle 9 is arranged on the guide rail 2 and used for guiding the test trolley 1 and preventing the test trolley 1 from rushing out of the guide rail 2. The frame 11 is formed by welding square steel and has the characteristics of simple structure, high rigidity and the like.
The guide wheel 15 adopts a first bearing 18, and the traveling wheel 10 adopts a second bearing 21 as an actuating mechanism for guiding and traveling. The bearing is adopted as an actuating mechanism, and the friction force is small.
The test platform can complete the test of 5 test trolleys at most once, and the number of the test trolleys arranged on the test platform can be flexibly combined according to the test requirements. The linear motor installed on the test trolley 1 is electrified with corresponding current, the traction force generated by the linear motor can be directly detected through the tension sensor 6, and the normal force can be directly detected through the pressure sensor 22.
Various modifications and variations of the present invention may be made by those skilled in the art, and they are also within the scope of the present invention provided they are within the scope of the claims of the present invention and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (8)
1. The utility model provides a testing platform of linear electric motor normal force and traction force, includes at least one experimental dolly, guide rail, F rail, force sensor, safety rope and pressure sensor, force sensor and safety rope are located the guide rail both ends respectively, experimental dolly is placed on the guide rail its characterized in that: the F rail is laid at the middle position above the guide rail, a fixed seat used for installing the linear motor is arranged on the test trolley, one end of the test trolley is connected with the tension sensor, the other end of the test trolley is connected with the safety rope, and the pressure sensor is located on one side of the guide rail.
2. The linear motor normal force and traction force detection platform of claim 1, wherein: the linear motor to be detected is fixed on a linear motor fixing seat of the test trolley through a bolt.
3. The linear motor normal force and traction detection platform of claim 1 or 2, characterized in that: the test trolley is provided with a travelling wheel, the test trolley moves along the guide rail through the travelling wheel, and the pressure sensor is fixed on the guide rail.
4. The platform for detecting the normal force and the traction force of the linear motor according to claim 1 or 2, wherein guide wheels are arranged on two sides of the test trolley.
5. The platform for detecting the normal force and the traction force of the linear motor according to claim 3, wherein guide wheels are arranged on two sides of the test trolley.
6. The linear motor normal force and traction force detection platform of claim 1, wherein: and L-shaped baffles are arranged on two sides of the guide rail.
7. The linear motor normal force and traction force detection platform of claim 1, wherein: the test trolley is made of a magnetism isolating material.
8. The linear motor normal force and traction force detection platform of claim 7, wherein: the test trolley is made of a stainless steel material capable of isolating magnetism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911162166.2A CN110987262A (en) | 2019-11-25 | 2019-11-25 | Linear motor normal force and traction force detection platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911162166.2A CN110987262A (en) | 2019-11-25 | 2019-11-25 | Linear motor normal force and traction force detection platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110987262A true CN110987262A (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911162166.2A Pending CN110987262A (en) | 2019-11-25 | 2019-11-25 | Linear motor normal force and traction force detection platform |
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| Country | Link |
|---|---|
| CN (1) | CN110987262A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156312A (en) * | 2021-04-30 | 2021-07-23 | 福建师范大学 | High-power linear electric motor dynamic behavior testing arrangement of adjustable structure |
| CN114878050A (en) * | 2022-06-07 | 2022-08-09 | 谢晶 | Linear motor normal force detection system |
| JP7268922B1 (en) | 2021-10-27 | 2023-05-08 | 西南交通大学 | Magnetic levitation railway running state simulator and its simulation method |
-
2019
- 2019-11-25 CN CN201911162166.2A patent/CN110987262A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156312A (en) * | 2021-04-30 | 2021-07-23 | 福建师范大学 | High-power linear electric motor dynamic behavior testing arrangement of adjustable structure |
| JP7268922B1 (en) | 2021-10-27 | 2023-05-08 | 西南交通大学 | Magnetic levitation railway running state simulator and its simulation method |
| JP2023067682A (en) * | 2021-10-27 | 2023-05-16 | 西南交通大学 | Apparatus for simulating traveling state of magnetic levitation type train and method therefor |
| CN114878050A (en) * | 2022-06-07 | 2022-08-09 | 谢晶 | Linear motor normal force detection system |
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