CN218955706U - Measuring instrument for measuring torsion of steel rail - Google Patents
Measuring instrument for measuring torsion of steel rail Download PDFInfo
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- CN218955706U CN218955706U CN202222911765.3U CN202222911765U CN218955706U CN 218955706 U CN218955706 U CN 218955706U CN 202222911765 U CN202222911765 U CN 202222911765U CN 218955706 U CN218955706 U CN 218955706U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 39
- 239000010959 steel Substances 0.000 title claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 74
- 230000007246 mechanism Effects 0.000 claims abstract description 72
- 238000006073 displacement reaction Methods 0.000 claims abstract description 41
- 239000004579 marble Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The utility model provides a measuring instrument for measuring the torsion of a steel rail, which comprises a controller, a plane moving device, and a laser sensor detection mechanism and a displacement sensor detection mechanism which are fixed on the moving end of the plane moving device, wherein the controller is respectively connected with the plane moving device, the laser sensor detection mechanism and the displacement sensor detection mechanism in a signal way, and the position of the laser sensor detection mechanism on the plane can be changed by the plane moving device, so that the central axes of the laser sensor detection mechanism and the displacement sensor detection mechanism are ensured to be positioned at the middle division plane of the steel rail.
Description
Technical Field
The utility model relates to the technical field of steel rail measurement, in particular to a measuring instrument for measuring the torsion of a steel rail.
Background
The bottom surface of the steel rail is distorted in the rolling process due to various reasons in the production process of the steel rail, the torsion degree is measured when leaving the factory, and the detection is needed to ensure the product quality of the steel rail.
The existing measuring method comprises the following steps:
1. the flatness was determined by manually inspecting 4 points at the bottom of a rail of length 1 meter and width 130 mm using a special gauge.
2. A non-contact detection mechanism consisting of two laser line sensors is used at the bottom surface of the steel rail with the length of 1 meter, and 4-point detection is carried out at the bottom surface of the steel rail with the length of 1 meter and the width of 130 mm (an assembly body for measuring the distortion of the steel rail and the concavity of the rail bottom and a system CN 210321637).
Aiming at the method 1, the defects of poor working environment, low measurement precision of a detection device, easy operation error generation caused by manpower, inconvenient transmission and storage of test data and the like exist; aiming at the method 2, the position of the steel rail is uncertain, and the steel rail is beyond the detection range of the laser detection device, so that the steel rail cannot be detected, and even if the steel rail is stopped in the laser detection range, the middle-divided surface of the steel rail cannot be accurately stopped at the middle points of the two laser detection sensors, so that errors are generated in test data; meanwhile, the data detected by the laser sensor are line scanning, the data acquisition is not perfect enough, errors can be generated by the laser detection sensor due to environmental vibration, electromagnetic interference and the like, and the test process is inconvenient to check.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a measuring instrument for measuring the torsion of a steel rail.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the measuring instrument for measuring the torsion of the steel rail comprises a controller, a plane moving device, and a laser sensor detection mechanism and a displacement sensor detection mechanism which are fixed on the moving end of the plane moving device, wherein the controller is respectively connected with the plane moving device, the laser sensor detection mechanism and the displacement sensor detection mechanism through signals; the plane moving device comprises a fixed seat, a first X-axis servo moving system and a second X-axis servo moving system which are arranged on the fixed seat, wherein the first X-axis servo moving system and the second X-axis servo moving system are identical in structure and comprise an X-axis servo motor, an output shaft of the X-axis servo motor is connected with an X-axis screw rod, an X-axis nut is sleeved on the X-axis screw rod and connected with a Y-axis fixing plate, an X-axis guide rail is arranged on the fixed seat, and an X-axis sliding block is fixed at the bottom end of the Y-axis fixing plate; the Y-axis fixing plate is provided with a Y-axis guide rail which is in sliding connection with a Y-axis sliding block, the Y-axis sliding block is fixedly connected with a moving plate, one of the Y-axis sliding blocks is fixedly provided with a Y-axis motor, an output shaft of the Y-axis motor is connected with a Y-axis screw rod, the Y-axis screw rod is sleeved with a Y-axis nut, the Y-axis nut is fixedly connected with the moving plate, and the moving plate is fixedly connected with a laser sensor detection mechanism and a displacement sensor detection mechanism.
Further, the displacement sensor detection mechanism comprises a displacement detection mechanism fixing plate and a reference beam arranged on the displacement detection mechanism fixing plate, wherein a first fixed contact, a second fixed contact, a third fixed contact and a high-precision displacement sensor are arranged on the reference beam, and the first fixed contact, the second fixed contact, the third fixed contact and the high-precision displacement sensor are positioned at four diagonal lines of a rectangle; and a first spring cylinder, a second spring cylinder, a third spring cylinder and a fourth spring cylinder are fixed at the bottom end of the reference beam.
Further, the first fixed contact, the second fixed contact and the third fixed contact are respectively arranged at three points of a rectangular diagonal line with the length of 1 meter and the width of 130 millimeters on the reference beam, and the high-precision displacement sensor is arranged at the other point of the rectangle.
Further, laser sensor detection mechanism includes the laser detection mechanism fixed plate with movable plate fixed connection, be fixed with detection mechanism marble basis and two cylinder control valve islands on the laser detection mechanism fixed plate, be fixed with line laser sensor on the marble basis, be fixed with sensor protection mechanism on the line laser sensor, be equipped with the protective cover on the sensor protection mechanism, protective cover and protective cover connecting rod fixed connection, protective cover connecting rod and protective cover cylinder fixed connection that opens and shuts, be equipped with the protective cover cylinder that opens and shuts under the sensor protection mechanism, the cylinder that opens and shuts with the protective cover is opened and shut with the sensor window protecting cover fixed connection that sets up on the sensor protection mechanism.
Compared with the prior art, the utility model has the following beneficial effects:
1. the measuring instrument for measuring the torsion of the steel rail provided by the utility model has the advantages that the position of the laser sensor detection mechanism on a plane can be changed through the plane moving device, so that the midpoints of the two line laser sensors of the laser sensor detection mechanism are ensured to be positioned at the middle parting plane of the steel rail.
2. The measuring instrument for measuring the torsion of the steel rail provided by the utility model can accurately track the parking position of the steel rail through the plane moving device, and can enable the line laser sensor of the laser sensor detection mechanism to scan along the Y axis (the length direction of the steel rail), so that the line laser sensor is changed from line scanning to surface scanning, the collected point cloud data contains six-degree-of-freedom data of the bottom surface of the heavy rail, the measuring process is not influenced by the change of the posture of the heavy rail, the collected data is more than the line scanning mode, and the torsion result is more reasonable and reliable.
3. The measuring instrument for measuring the torsion of the steel rail provided by the utility model is provided with the two detection mechanisms with different detection methods, so that the detection results can be mutually checked at any time, the random error of a detection system caused by external interference factors is avoided, and the detection precision is improved.
4. The measuring instrument for measuring the torsion of the steel rail provided by the utility model has the advantages that the structure of the added displacement sensor detecting mechanism is simple, and the torsion of the bottom plane of the steel rail can be conveniently and accurately determined through the data detected by the high-precision displacement sensor.
Drawings
FIG. 1 is a schematic illustration of the position of the mechanisms of the present utility model;
FIG. 2 is a schematic diagram showing the positions of a first X-axis servo-motion system and a second X-axis servo-motion system according to the present utility model
FIG. 3 is a schematic view of a planar mobile device according to the present utility model;
FIG. 4 is a schematic diagram of a detection mechanism of a displacement sensor according to the present utility model;
FIG. 5 is a front view of a displacement sensor detection mechanism of the present utility model;
fig. 6 is a schematic structural view of a laser sensor detection mechanism according to the present utility model.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
Referring to fig. 1-5, the measuring instrument for measuring the torsion of the steel rail provided by the utility model comprises a controller, a plane moving device 1, and a laser sensor detection mechanism 2 and a displacement sensor detection mechanism 3 which are fixed on the moving end of the plane moving device 1, wherein the controller is respectively in signal connection with the plane moving device 1, the laser sensor detection mechanism 2 and the displacement sensor detection mechanism 3.
The plane moving device 1 comprises a fixed seat 11, a first X-axis servo moving system 12 and a second X-axis servo moving system 13 which are arranged on the fixed seat 11, the first X-axis servo moving system 12 and the second X-axis servo moving system 13 are identical in structure and comprise an X-axis servo motor 121, an output shaft of the X-axis servo motor 121 is connected with an X-axis screw rod 122, an X-axis nut 123 is sleeved on the X-axis screw rod 122, the X-axis nut 123 is connected with a Y-axis fixing plate 124, an X-axis guide rail 125 is arranged on the fixed seat 11, and an X-axis sliding block 126 is fixed at the bottom end of the Y-axis fixing plate 124.
The Y-axis fixing plate 124 is provided with a Y-axis guide rail 127, the Y-axis guide rail 127 is in sliding connection with a Y-axis sliding block 128, the Y-axis sliding block 128 is fixedly connected with a moving plate 129, one of the Y-axis sliding blocks is fixedly provided with a Y-axis motor 130, an output shaft of the Y-axis motor 130 is connected with a Y-axis screw rod 131, the Y-axis screw rod 131 is sleeved with a Y-axis nut 132, the Y-axis nut 132 is fixedly connected with the moving plate 129, and the moving plate 129 is fixedly connected with a laser sensor detection mechanism 2 and a displacement sensor detection mechanism 3.
When the plane moving device 1 works, the X-axis servo motor 121 of the first X-axis servo moving system 12 and the second X-axis servo moving system 13 is started to drive the X-axis screw 122 to rotate, so as to drive the Y-axis fixing plate 124 to move, and at this time, the movement of the laser sensor detecting mechanism 2 and the displacement sensor detecting mechanism 3 on the X-axis position is realized; then the Y-axis motor 130 is started to drive the Y-axis screw rod 131 to rotate so as to drive the moving plate 129 to move in the Y-axis direction, thereby realizing the movement of the laser sensor detection mechanism 2 and the displacement sensor detection mechanism 3 in the Y-axis position, ensuring that the middle points of the two laser sensors of the laser sensor detection mechanism 2 are positioned at the middle division surface of the steel rail or the displacement sensor detection mechanism 3 is accurately positioned below the steel rail by moving the positions of the laser sensor detection mechanism 2 and the displacement sensor detection mechanism 3, simultaneously enabling the laser sensor detection mechanism 2 to scan along the Y-axis (the length direction of the steel rail), changing the line scanning of the laser sensor into the surface scanning, and ensuring more reasonable and reliable data acquisition.
The displacement sensor detection mechanism 3 comprises a displacement detection mechanism fixing plate 31 and a reference beam 32 arranged on the displacement detection mechanism fixing plate 31, wherein a first fixed contact 33, a second fixed contact 34, a third fixed contact 35 and a high-precision displacement sensor 36 are arranged on the reference beam 32, and the first fixed contact 33, the second fixed contact 34, the third fixed contact 35 and the high-precision displacement sensor 36 are positioned at four diagonal lines of a rectangle; the bottom end of the reference beam is fixed with a first spring cylinder 37, a second spring cylinder 38, a third spring cylinder 39 and a fourth spring cylinder 40.
The laser sensor detection mechanism 2 comprises a laser detection mechanism fixing plate 50 fixedly connected with a moving plate 129, a detection mechanism marble foundation 41 and two cylinder control valve islands 42 are fixed on the laser detection mechanism fixing plate 50, a wire laser sensor 43 is fixed on the marble foundation 41, a sensor protection mechanism 44 is fixed on the wire laser sensor 43, a protection cover 45 is arranged on the sensor protection mechanism 44, the protection cover 45 is fixedly connected with a protection cover connecting rod 46, the protection cover connecting rod 46 is fixedly connected with a protection cover opening and closing cylinder 47, a protection cover opening and closing cylinder 49 is arranged below the sensor protection mechanism 44, and the protection cover opening and closing cylinder 49 is fixedly connected with a sensor window protection cover 48 arranged on the sensor protection mechanism 44.
The first fixed contact 33, the second fixed contact 34 and the third fixed contact 35 are respectively arranged at three points of a diagonal line of a rectangle with the length of 1 meter and the width of 130 mm on the reference beam 32, and the high-precision displacement sensor 36 is arranged at the other point of the rectangle.
It should be noted that, according to any inclination of the steel rail bottom plane, the controller controls the cylinder rods of the first spring cylinder 37, the second spring cylinder 38, the third spring cylinder 39 and the fourth spring cylinder 40 of the displacement sensor detection mechanism 3 to move, so that the reference beam 32 inclines correspondingly along with the cylinder rods, the first fixed contact 33, the second fixed contact 34 and the third fixed contact 35 always contact with the steel rail bottom plane with a balanced force, and finally, the torsion degree of the steel rail bottom plane can be conveniently and accurately determined through the data detected by the high-precision displacement sensor 36, and the two different detection devices of the laser sensor detection mechanism 2 and the displacement sensor detection mechanism 3 can mutually check the detection results at any time, so that the random error of the detection system caused by external interference factors is avoided, the detection precision is improved, the data is convenient for analysis and processing, and the technological parameters (steel rail straightener) of the steel rail production process are timely guided; and can be extended to the detection of flatness of other products.
While the utility model has been described with reference to the preferred embodiments, it is not intended to limit the utility model thereto, and it is to be understood that other modifications and improvements may be made by those skilled in the art without departing from the spirit and scope of the utility model, which is therefore defined by the appended claims.
Claims (4)
1. The measuring instrument for measuring the torsion of the steel rail is characterized by comprising a controller, a plane moving device (1), and a laser sensor detection mechanism (2) and a displacement sensor detection mechanism (3) which are fixed on the moving end of the plane moving device (1), wherein the controller is respectively connected with the plane moving device (1), the laser sensor detection mechanism (2) and the displacement sensor detection mechanism (3) through signals;
the plane moving device (1) comprises a fixed seat (11), a first X-axis servo moving system (12) and a second X-axis servo moving system (13) which are arranged on the fixed seat (11), wherein the first X-axis servo moving system (12) and the second X-axis servo moving system (13) have the same structure and comprise an X-axis servo motor (121), an output shaft of the X-axis servo motor (121) is connected with an X-axis screw rod (122), an X-axis nut (123) is sleeved on the X-axis screw rod (122), the X-axis nut (123) is connected with a Y-axis fixed plate (124), an X-axis guide rail (125) is arranged on the fixed seat (11), and an X-axis sliding block (126) is fixed at the bottom end of the Y-axis fixed plate (124);
be equipped with Y axle guide rail (127) on Y axle fixed plate (124), Y axle guide rail (127) and Y axle slider (128) sliding connection, Y axle slider (128) all with movable plate (129) fixed connection, one of them be fixed with Y axle motor (130) on Y axle fixed plate (124), the output shaft of Y axle motor (130) is connected with Y axle lead screw (131), the cover is equipped with Y axle nut (132) on Y axle lead screw (131), Y axle nut (132) and movable plate (129) fixed connection, movable plate (129) all with laser sensor detection mechanism (2) and displacement sensor detection mechanism (3) fixed connection.
2. A measuring instrument for measuring the torsion resistance of a steel rail according to claim 1, wherein the displacement sensor detecting mechanism (3) comprises a displacement detecting mechanism fixing plate (31) and a reference beam (32) arranged on the displacement detecting mechanism fixing plate (31), the reference beam (32) is provided with a first fixed contact (33), a second fixed contact (34), a third fixed contact (35) and a high-precision displacement sensor (36), and the first fixed contact (33), the second fixed contact (34), the third fixed contact (35) and the high-precision displacement sensor (36) are positioned at four diagonal lines of a rectangle;
and a first spring cylinder (37), a second spring cylinder (38), a third spring cylinder (39) and a fourth spring cylinder (40) are fixed at the bottom end of the reference beam (32).
3. A measuring instrument for measuring the torsion of a steel rail according to claim 2, wherein the first fixed contact (33), the second fixed contact (34) and the third fixed contact (35) are respectively arranged at three points of a rectangular diagonal line of the reference beam (32) which is 1 m long and 130 mm wide, and the high-precision displacement sensor (36) is arranged at the other point of the rectangle.
4. A measuring apparatus for measuring torsion of a rail according to claim 3, wherein the laser sensor detecting means (2) comprises a laser detecting means fixing plate (50) fixedly connected with a moving plate (129), a detecting means marble base (41) and two cylinder control valve islands (42) are fixed on the laser detecting means fixing plate (50), a wire laser sensor (43) is fixed on the marble base (41), a sensor protecting means (44) is fixed on the wire laser sensor (43), a protecting cover (45) is arranged on the sensor protecting means (44), the protecting cover (45) is fixedly connected with a protecting cover connecting rod (46), the protecting cover connecting rod (46) is fixedly connected with a protecting cover opening and closing cylinder (47), a protecting cover opening and closing cylinder (49) is arranged under the sensor protecting means (44), and the protecting cover opening and closing cylinder (49) is fixedly connected with a sensor protecting cover (48) arranged on the sensor protecting means (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222911765.3U CN218955706U (en) | 2022-11-02 | 2022-11-02 | Measuring instrument for measuring torsion of steel rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222911765.3U CN218955706U (en) | 2022-11-02 | 2022-11-02 | Measuring instrument for measuring torsion of steel rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218955706U true CN218955706U (en) | 2023-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222911765.3U Active CN218955706U (en) | 2022-11-02 | 2022-11-02 | Measuring instrument for measuring torsion of steel rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218955706U (en) |
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2022
- 2022-11-02 CN CN202222911765.3U patent/CN218955706U/en active Active
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