A laser collimation elevator rail perpendicularity and gauge fast measuring device and method of use thereof

Abstract

The application discloses a kind of laser collimation's elevator guide rail perpendicularity and gauge fast measuring device and its use method, in the present application, first magnetic attraction fixed plate, second magnetic attraction fixed plate are respectively arranged on two elevator guide rails;First magnetic attraction fixed plate is provided with collimating laser and first four-quadrant detector, and second magnetic attraction fixed plate is provided with second four-quadrant detector, wherein one guide rail moving unit is provided with combined light splitting prism, and the other guide rail moving unit is provided with right-angle prism;Collimating laser is used to emit collimating beam to combined light splitting prism, combined light splitting prism is used to divide collimating beam into first collimating beam and second collimating beam, and first four-quadrant detector is used to receive first collimating beam;Right-angle prism is used to deflect second collimating beam, and second four-quadrant detector is used to receive second collimating beam after deflection by right-angle prism.

Description

Technical Field

[0001] This invention relates to the field of precision measurement, and in particular to a laser-collimated rapid measurement device for the verticality and gauge of elevator guide rails, and its method of use. Background Technology

[0002] Elevators, as an indispensable means of transportation in modern buildings, have always received widespread attention for their safety and performance. Within an elevator system, the guide rails, as a crucial component supporting elevator operation, directly impact the elevator's safety, comfort, and performance through their verticality and gauge accuracy. Therefore, ensuring that the guide rails meet specifications is one of the most important tasks in elevator manufacturing and maintenance. Traditional methods for measuring guide rail verticality and gauge typically rely on manual measurement, which suffers from drawbacks such as long measurement times, low accuracy, and low efficiency.

[0003] Therefore, there is a need to provide a laser-collimated elevator guide rail verticality and gauge rapid measurement device and its usage method to solve the above problems. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] A laser-collimated rapid measurement device for the verticality and gauge of elevator guide rails includes two guide rail moving units, a first magnetic fixing plate, and a second magnetic fixing plate.

[0006] Two guide rail moving units are respectively installed on two elevator guide rails, and the first magnetic fixing plate and the second magnetic fixing plate are respectively installed on two elevator guide rails. The guide rail moving units can move along the elevator guide rails.

[0007] A collimating laser and a first four-quadrant detector are mounted on the first magnetic fixing plate, and a second four-quadrant detector is mounted on the second magnetic fixing plate. A combined beam splitter is mounted on one guide rail moving unit, and a right-angle prism is mounted on the other guide rail moving unit. The collimating laser is used to emit a collimated beam to the combined beam splitter, which is used to split the collimated beam into a first collimated beam and a second collimated beam. The first four-quadrant detector is used to receive the first collimated beam. The right-angle prism is used to deflect the second collimated beam, and the second four-quadrant detector is used to receive the second collimated beam after it has been deflected by the right-angle prism.

[0008] Optionally, both guide rail moving units are horizontally equipped with a loading platform, and the combined beam splitter and right-angle prism are respectively mounted on the corresponding loading platform; the inclined surface of the right-angle prism and the loading platform of the guide rail moving unit are at an angle of 45°.

[0009] Optionally, the first magnetic fixing plate and the combined beam splitter are mounted on the same elevator guide rail, and the second magnetic fixing plate and the right-angle prism are mounted on the same elevator guide rail.

[0010] Optionally, the combined beam splitter includes a second right-angle prism and a beam splitter prism, which are bonded together using special adhesive for optical lenses.

[0011] Optionally, the beam splitter is a cubic beam splitter, and one right-angled face of the second right-angled prism is bonded to one side of the beam splitter. The angle between the inclined face of the second right-angled prism and the installation angle of the loading platform is 45°.

[0012] Optionally, the first magnetic fixing plate and the second magnetic fixing plate are magnetic, and the first magnetic fixing plate and the second magnetic fixing plate can be magnetically attached to the corresponding elevator guide rail.

[0013] Optionally, both the first magnetic fixing plate and the second magnetic fixing plate are perpendicular to the corresponding elevator guide rail.

[0014] Optionally, the collimating laser and the first four-quadrant detector are magnetically attached to the first magnetic fixing plate, and the second four-quadrant detector is magnetically attached to the second magnetic fixing plate. This facilitates adjusting the positions of the collimating laser and the first four-quadrant detector on the first magnetic fixing plate, as well as the position of the second four-quadrant detector on the second magnetic fixing plate, during installation and commissioning.

[0015] Optionally, the two guide rail moving units are on the same horizontal plane; the first magnetic fixing plate and the second magnetic fixing plate are on the same horizontal plane; the first four-quadrant detector, the second four-quadrant detector and the collimating laser are on the same horizontal plane.

[0016] Optionally, the guide rail moving unit is a guide rail climbing robot.

[0017] Optionally, the ratio of the spot radius of the beam emitted by the collimating laser to the photosensitive radius of the four-quadrant detector is 1:2, which balances both measurement range and measurement sensitivity.

[0018] The method for using a laser-collimated elevator guide rail verticality and gauge rapid measurement device includes the following steps:

[0019] 1) Attach the first magnetic fixing plate and the second magnetic fixing plate to the top or bottom of the corresponding elevator guide rail, respectively, ensuring that the first magnetic fixing plate and the second magnetic fixing plate are at the same horizontal height; install the two guide rail moving units on the corresponding elevator guide rails, ensuring that the two guide rail moving units are at the same horizontal height;

[0020] 2) After the first magnetic fixing plate and the second magnetic fixing plate are installed on the corresponding elevator guide rail, the collimating laser is leveled so that the collimated beam emitted by the collimating laser is perpendicular to the ground, which serves as the measurement reference for the verticality of the guide rail. The center of the spot of the first collimating beam coincides with the center of the first four-quadrant detector, and the center of the spot of the second collimating beam coincides with the center of the second four-quadrant detector.

[0021] 3) The collimating laser on the first magnetic fixing plate emits a collimated beam to the combined beam splitter. When the collimated beam passes through the combined beam splitter, it is split into two collimated beams, namely the first collimated beam and the second collimated beam. The first collimated beam is received by the first four-quadrant detector, which starts the two guide rail moving units to move synchronously at the same speed and records the distance the first four-quadrant detector measures the movement of the spot of the first collimated beam on its surface.

[0022] 4) When measuring the verticality of another elevator guide rail, swap the first magnetic fixing plate and the second magnetic fixing plate and install them on the corresponding elevator guide rail. At the same time, swap the two guide rail moving units and install them on the corresponding elevator guide rail. Repeat steps 2) and 3).

[0023] 5) Based on the measurement principle of aligning the four-quadrant detector with the straight light spot, calculate... The formula for the total shift of the light spot of the first collimated beam on the first four-quadrant detector is:

[0024] (1)

[0025] In the formula, This represents the total shift in the spot size of the first collimated beam that will occur on the first four-quadrant detector. Output voltage for each quadrant; k These are the conversion factors;

[0026] Based on the characteristic that the combined beam splitter can magnify the verticality measurement value of the elevator guide rail by two times, the verticality error of the elevator guide rail can be calculated using the following formula:

[0027] (2)

[0028] In the formula, This is expressed as the verticality error of the elevator guide rail where the first magnetic fixing plate is located;

[0029] By calculating the difference between the two first-quadrant detectors and the second-quadrant detector, the change in track gauge between the two elevator guide rails can be calculated. The calculation formula is as follows:

[0030] (3)

[0031] In the formula, D This indicates the change in gauge between the two elevator guide rails. This represents the change in the position of the spot of the first collimated beam on the first four-quadrant detector. This indicates the change in the position of the spot on the second collimated beam in the second quadrant detector.

[0032] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:

[0033] 1. Rapid measurement: Utilizing laser collimation technology, the verticality and gauge of elevator guide rails can be measured quickly and accurately, saving time and labor costs.

[0034] 2. High precision: The collimated laser has the characteristics of high precision, which can provide accurate measurement results and help ensure the safe operation of elevator guide rails.

[0035] 3. Easy to operate: Compared with traditional measurement methods, using a collimated laser for measurement is simpler and does not require a complicated calibration process.

[0036] 4. Improved work efficiency: This invention can quickly and accurately measure the perpendicularity and gauge of the guide rail. The accurate results can help staff quickly locate problems with the guide rail, improving the efficiency of maintenance and adjustment.

[0037] 5. Safety: Measurements are performed using a collimated laser, allowing for remote operation and eliminating the need for workers to access high-risk areas, thus improving work safety.

[0038] 6. Data recording: Facilitates the recording of measurement data, facilitates report generation and subsequent analysis, and benefits elevator maintenance and management. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the structure and optical path principle of a laser-collimated elevator guide rail verticality and track gauge rapid measurement device of the present invention.

[0041] Figure 2 This is a schematic diagram illustrating the elevator guide rail verticality measurement principle of the laser-collimated elevator guide rail verticality and gauge rapid measurement device of the present invention.

[0042] Figure 3 This is a schematic diagram illustrating the elevator guide rail gauge measurement principle of the laser-collimated elevator guide rail verticality and gauge rapid measurement device of the present invention.

[0043] Figure 4 This is a schematic diagram illustrating the four-quadrant detector spot positioning principle of the laser-collimated elevator guide rail verticality and track gauge rapid measurement device of the present invention.

[0044] Explanation of main component symbols

[0045]

[0046] The following detailed description, in conjunction with the accompanying drawings, will further illustrate the present invention. Detailed Implementation

[0047] To enable those skilled in the art to better understand the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The terms "first," "second," etc., in the specification, claims, and accompanying drawings are used to distinguish different objects and not to describe a particular order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to imply non-exclusive inclusion. For example, a process, method, system, product, or apparatus that comprises a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0048] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0049] Please see Figures 1-4 A laser-collimated elevator guide rail verticality and track gauge rapid measurement device includes two guide rail moving units 11, a first magnetic fixing plate 12, and a second magnetic fixing plate 13.

[0050] Two guide rail moving units 11 are respectively installed on two elevator guide rails, and the first magnetic fixing plate 12 and the second magnetic fixing plate 13 are respectively installed on two elevator guide rails 10. The guide rail moving unit 11 can move along the elevator guide rail.

[0051] A collimating laser 121 and a first quadrant detector 122 are mounted on the first magnetic fixing plate 12, and a second quadrant detector 131 is mounted on the second magnetic fixing plate 13. A combined beam splitter 111 is mounted on one guide rail moving unit 11, and a right-angle prism 112 is mounted on the other guide rail moving unit 11. The collimating laser 121 is used to emit a collimated beam to the combined beam splitter 111, which is used to split the collimated beam into a first collimated beam 20 and a second collimated beam 21. The first quadrant detector 122 is used to receive the first collimated beam. The right-angle prism 112 is used to deflect the second collimated beam 21, and the second quadrant detector 131 is used to receive the second collimated beam after it has been deflected by the right-angle prism 112.

[0052] In one embodiment of the present invention, a loading platform is horizontally arranged on each of the two guide rail moving units 11, and the combined beam splitter prism 111 and the right-angle prism 112 are respectively arranged on the corresponding loading platform; the inclined surface of the right-angle prism 112 and the loading platform of the guide rail moving unit 11 are at an angle of 45°.

[0053] In one embodiment of the present invention, the first magnetic fixing plate 12 and the combined beam splitter 111 are mounted on the same elevator guide rail 10, and the second magnetic fixing plate 13 and the right-angle prism 112 are mounted on the same elevator guide rail 10.

[0054] In one embodiment of the present invention, the combined beam splitter 111 includes a second right-angle prism 101 and a beam splitter 102, which are bonded together with special adhesive for optical lenses.

[0055] In one embodiment of the present invention, the beam splitter 102 is a cubic beam splitter, and a right-angled facet of the second right-angled prism 101 is bonded to one side of the beam splitter prism. The inclined facet of the second right-angled prism 101 forms a 45° angle with the mounting angle of the platform. The combination of the second right-angled prism 101 and the beam splitter 102 can split the collimated beam into a first collimated beam 20 and a second collimated beam 21.

[0056] In one embodiment of the present invention, the first magnetic fixing plate 12 and the second magnetic fixing plate 13 are magnetic, and can be magnetically attached to the corresponding elevator guide rail. This facilitates adjusting the position of the first magnetic fixing plate 12 and the second magnetic fixing plate 13 on the corresponding elevator guide rail during installation and debugging.

[0057] In one embodiment of the present invention, the first magnetic fixing plate 12 and the second magnetic fixing plate 13 are both perpendicular to the corresponding elevator guide rail or parallel to the ground.

[0058] In one embodiment of the present invention, the two guide rail moving units 11 are on the same horizontal plane; the first magnetic fixing plate 12 and the second magnetic fixing plate 13 are on the same horizontal plane; and the first quadrant detector 122, the second quadrant detector 131 and the collimating laser 121 are on the same horizontal plane.

[0059] Furthermore, the receiving ends of the first quadrant detector 122 and the second quadrant detector 131 are on the same horizontal plane as the output end of the collimated laser 121.

[0060] In one embodiment of the present invention, the guide rail moving unit 11 is a guide rail climbing robot.

[0061] In one embodiment of the present invention, the guide rail moving unit 11 is a magnetic climbing robot or a magnetic adsorption wall climbing robot.

[0062] In one embodiment of the present invention, the ratio of the spot radius of the beam emitted by the collimated laser 121 to the photosensitive radius of the first quadrant detector 122 and the second quadrant detector 131 is 1:2. This ratio can take into account both the measurement range and the measurement sensitivity.

[0063] The method for using a laser-collimated elevator guide rail verticality and gauge rapid measurement device includes the following steps:

[0064] 1) Attach the first magnetic fixing plate 12 and the second magnetic fixing plate 13 to the top or bottom of the corresponding elevator guide rail 10, respectively, and keep the horizontal height of the first magnetic fixing plate 12 and the second magnetic fixing plate 13 consistent; install the two guide rail moving units 11 on the corresponding elevator guide rail 10, and keep the horizontal height of the two guide rail moving units 11 consistent.

[0065] 2) After the first magnetic fixing plate 12 and the second magnetic fixing plate 13 are installed on the corresponding elevator guide rail 10, the collimating laser 121 is leveled so that the collimated beam emitted by the collimating laser 121 is perpendicular to the ground, which serves as the measurement reference for the verticality of the guide rail. The center of the spot of the first collimating beam 20 and the second collimating beam 21 is adjusted to coincide with the center of the first four-quadrant detector 122, and the center of the spot of the second collimating beam 21 is aligned with the center of the second four-quadrant detector 131.

[0066] 3) The collimated laser 121 on the first magnetic fixing plate 12 emits a collimated beam to the combined beam splitter 111. When the collimated beam passes through the combined beam splitter 111, it is split into a first collimated beam 20 and a second collimated beam 21. The first collimated beam 20 is received by the first quadrant detector 122, which starts the synchronous and constant speed movement of the two guide rail moving units 11 and records the movement distance of the spot of the first collimated beam 20 on its surface as measured by the first quadrant detector 122.

[0067] 4) When measuring the verticality of another elevator guide rail 10, swap the first magnetic fixing plate 12 and the second magnetic fixing plate 13 and install them on the corresponding elevator guide rail 10. At the same time, swap the two guide rail moving units 11 and install them on the corresponding elevator guide rail 10. Repeat steps 2) and 3).

[0068] 5) Based on the measurement principle of aligning the four-quadrant detector with the straight light spot, calculate... The formula for the total shift of the light spot of the first collimated beam 20 on the first four-quadrant detector 122 is:

[0069] (1)

[0070] In the formula, This represents the total shift in the spot size of the first collimated beam that will occur on the first four-quadrant detector. Output voltage for each quadrant; k These are the conversion factors;

[0071] Based on the characteristic that the combined beam splitter can magnify the verticality measurement value of the guide rail by two times, the verticality error of the elevator guide rail 10 is calculated using the following formula:

[0072] (2)

[0073] In the formula, This is expressed as the verticality error of the elevator guide rail 10 where the first magnetic fixing plate 12 is located;

[0074] By calculating the difference between the two first-quadrant detectors 122 and the second-quadrant detector 131, the gauge change of the two elevator guide rails can be calculated. The calculation formula is as follows:

[0075] (3)

[0076] In the formula, D This indicates the change in gauge between the two elevator guide rails. This represents the change in the position of the light spot of the first collimated beam 20 on the first four-quadrant detector 122. This indicates the change in the position of the spot on the second collimated beam 21 in the second quadrant detector 131.

[0077] In one embodiment of the present invention, the schematic diagram of the measurement of the elevator guide rail in steps 3) and 4) is as follows. Figure 2As shown. Ideally, the elevator guide rail 10 is vertical. When the guide rail moving unit 11 drives the combined beam splitter to move linearly along the elevator guide rail, the position of the spot of the first collimated beam 20 on the first four-quadrant detector 122 will not change. In reality, due to factors such as installation errors of the elevator guide rail, the elevator guide rail 10 is no longer vertical. Figure 2 The dashed line indicates that the elevator guide rail is not perpendicular. When the guide rail moving unit 11 moves the combined beam splitter prism 111 from the solid line position to the dashed line position, based on the laser collimation principle, the spot of the first collimated beam 20 will move on the first four-quadrant detector 122, and the amount of movement can be expressed as follows: Based on the measurement principle of the four-quadrant detector aligning with the light spot, when the center of the light spot deviates from the center of the detector, the energy of the light spot acquired in each quadrant will change accordingly. Therefore, the relative displacement of the light spot on the four-quadrant detector can be calculated based on the energy change difference acquired by the detector.

[0078] (1)

[0079] In the formula, This represents the total amount of shift that the spot of the first collimated beam 20 will undergo on the first four-quadrant detector 122. Voltage for each quadrant; k This is the conversion factor (sensitivity).

[0080] Therefore, based on the characteristic that the combined beam splitter can magnify the verticality measurement value of the guide rail by two times, the verticality error of the elevator guide rail 10 can be calculated. The calculation formula is as follows:

[0081] (2)

[0082] In the formula, This is expressed as the verticality error of the elevator guide rail 10 where the first magnetic fixing plate 12 is located.

[0083] Similarly, in order to measure the verticality error of another elevator guide rail, the first magnetic fixing plate 12 and the second magnetic fixing plate 13 are swapped and installed on the corresponding elevator guide rail 10. At the same time, the two guide rail moving units 11 are also swapped and installed on the corresponding elevator guide rail 10, so that the verticality error can be measured.

[0084] The principle for measuring the track gauge of two elevator guide rails is as follows: Figure 4As shown. Ideally, the two guide rails are parallel and perpendicular. The centers of the light spots of the first collimating beam 20 and the second collimating beam 21 are aligned with the center of the first quadrant detector 122, and the center of the light spot of the second collimating beam 21 is aligned with the center of the second quadrant detector 131. At this time, no matter how the two guide rail moving units 11 move synchronously and at the same speed on the guide rails, their light spots will not change position on the quadrant detectors. However, when the elevator guide rail where the second magnetic fixing plate 13 is located is no longer perpendicular, that is, at different positions, the track gauge of the two elevator guide rails will change. This can be addressed by using methods such as... Figure 3 The dashed line indicates that the elevator rail where the second magnetic fixing plate 13 is located is not perpendicular. When both rail moving units 11 move simultaneously from the solid line position to the dashed line position, the spot of the second collimated beam 21 will change position on the second quadrant detector 131, and the amount of change can be expressed as follows:

[0085] By calculating the difference between the two first-quadrant detectors 122 and the second-quadrant detector 131, the track gauge of the two elevator guide rails can be calculated. The calculation formula is as follows:

[0086] (3)

[0087] In the formula, D This indicates the gauge of the two elevator guide rails. This represents the change in the position of the light spot of the first collimated beam 20 on the first four-quadrant detector 122. This indicates the change in the position of the spot on the second collimated beam 21 in the second quadrant detector 131.

[0088] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A laser collimated elevator rail perpendicularity and gauge quick measuring device, characterized in that: The two guide rail moving units, the first magnetic attraction fixing plate and the second magnetic attraction fixing plate are arranged on the two elevator guide rails respectively. The two guide rail moving units are arranged on the two elevator guide rails respectively, and the first magnetic attraction fixing plate and the second magnetic attraction fixing plate are arranged on the two elevator guide rails respectively. The first magnetic attraction fixing plate is provided with a collimated laser and a first four-quadrant detector, and the second magnetic attraction fixing plate is provided with a second four-quadrant detector.

2. A laser collimation based quick measuring device for verticality and gauge of elevator guide rails as claimed in claim 1, wherein: One of the guide rail moving units is provided with a combined light splitting prism, and the other guide rail moving unit is provided with a right-angle prism.

3. A laser collimation based quick measuring device for verticality and gauge of elevator guide rails as claimed in claim 1, wherein: The collimated laser is used for emitting a collimated light beam to the combined light splitting prism.

4. A laser collimation based quick elevator guide rail perpendicularity and gauge measurement device as claimed in claim 1, wherein: The combined light splitting prism is used for splitting the collimated light beam into a first collimated light beam and a second collimated light beam.

5. A laser collimation based quick measuring device for verticality and gauge of elevator guide rails as claimed in claim 1, wherein: The first four-quadrant detector is used for receiving the first collimated light beam.

6. A laser collimation based quick elevator guide rail perpendicularity and gauge measurement device as claimed in claim 1, wherein: The right-angle prism is used for deflecting the second collimated light beam.

7. A laser collimation based quick measuring device for verticality and gauge of elevator guide rails as claimed in claim 1, wherein: The second four-quadrant detector is used for receiving the second collimated light beam after being deflected by the right-angle prism.

8. The method of using a laser collimation elevator rail perpendicularity and gauge quick measuring device according to any one of claims 1-7, wherein, The two guide rail moving units are arranged on the same horizontal plane. The first magnetic attraction fixing plate and the second magnetic attraction fixing plate are arranged on the same horizontal plane. The first four-quadrant detector, the second four-quadrant detector and the collimated laser are arranged on the same horizontal plane. The ratio of the spot radius of the light beam emitted by the collimated laser to the photosensitive radius of the first four-quadrant detector and the second four-quadrant detector is 1:

2. The steps include: 1) The first magnetic attraction fixing plate and the second magnetic attraction fixing plate are respectively adsorbed on the top or the end of the corresponding elevator guide rail, and the horizontal height of the first magnetic attraction fixing plate and the second magnetic attraction fixing plate is kept consistent. 2) After the first magnetic attraction fixing plate and the second magnetic attraction fixing plate are installed on the corresponding elevator guide rail, the collimated laser is leveled, so that the collimated light beam emitted by the collimated laser is perpendicular to the ground, serving as the measurement reference of the verticality of the guide rail. The spot center of the first collimated light beam coincides with the center of the first four-quadrant detector, and the spot center of the second collimated light beam coincides with the center of the second four-quadrant detector. 3) The collimated laser on the first magnetic attraction fixing plate emits a collimated light beam to the combined light splitting prism. When the collimated light beam passes through the combined light splitting prism, the collimated light beam is divided into two collimated light beams, which are the first collimated light beam and the second collimated light beam. The first collimated light beam is received by the first four-quadrant detector, and the two guide rail moving units are started to move at the same speed. The moving distance of the light spot of the first collimated light beam measured by the first four-quadrant detector on its surface is recorded; 4) When measuring the perpendicularity of the other elevator guide rail, the first magnetic attraction fixing plate and the second magnetic attraction fixing plate are installed on the corresponding elevator guide rail in a reversed manner, and the two guide rail moving units are also installed on the corresponding elevator guide rail in a reversed manner. Steps 2) and 3) are repeated. 5) According to the measurement principle of the four-quadrant detector on the collimated light spot, the total change in movement of the light spot of the first collimated light beam that will occur on the first four-quadrant detector is calculated as: The total change in movement of the light spot of the first collimated light beam that will occur on the first four-quadrant detector is calculated as: wherein, is the total change in movement of the light spot of the first collimated light beam that will occur on the first four-quadrant detector, is the output voltage of each quadrant; k is the conversion factor; According to the feature that the combined spectrometer prism can magnify the verticality measurement value of the guide rail by two times, the verticality error of the elevator guide rail is calculated, and the calculation formula is: In the formula, The verticality error of the elevator guide rail where the first magnetic attraction fixing plate is located is represented. The two first quadrant detectors and the second quadrant detector are calculated by difference, and the track gauge change of the two columns of elevator guide rails is calculated, and the calculation formula is: In the formula, D represents the track gauge change of the two columns of elevator guide rails, represents the spot position change of the first collimated light beam on the first quadrant detector, represents the spot position change of the second collimated light beam on the second quadrant detector.

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