Elevator guide rail alignment detection device and method

Abstract

The present invention relates to an elevator guide rail alignment detection device, comprising an operating platform, a reference assembly and a detection bracket. The operating platform is used to place the guide rail, and positioning blocks for positioning and placing the guide rail are provided on both sides of the operating platform, and the side edges of the bottom of the guide rail on both sides are respectively in contact with the positioning blocks. The reference assembly includes a reference sample line parallel to the line connecting the positioning blocks on both sides of the operating platform. The detection bracket is slidably connected to the guide rail, and the detection bracket is provided with a driving assembly for driving the detection bracket to slide on the guide rail. The detection bracket is also provided with a detection assembly, and the detection assembly includes a first displacement sensor and a second displacement sensor for respectively measuring the vertical and horizontal distances of the reference sample line, and a third displacement sensor and a fourth displacement sensor for respectively measuring the horizontal distances of the two sides of the guide rail. The device has a simple structure, high measurement accuracy, and high measurement efficiency. The present invention also relates to an elevator guide rail alignment detection method.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator equipment, and in particular to a device and method for detecting the straightness of an elevator guide rail. Background Art

[0002] For the results of elevator installation and commissioning, the vibration performance of the car is the core indicator, and the machining accuracy of the guide rail is one of the key influencing factors. Therefore, it is necessary to conduct material unpacking inspection on the elevator guide rail before installation. The material unpacking inspection is carried out on the ground. The purpose is to detect the machining accuracy of a single guide rail. The inspection indicator is the straightness of the guide rail, that is, the linearity and parallelism of the three working surfaces of the guide rail. Because the elevator installation site does not have the conditions to install a professional inspection platform, in traditional operations, the operator can only use a feeler gauge to select points to measure the gap between the working surface of the guide rail and the sample line, and record whether the data of each measuring point meets the process error standard to determine whether the guide rail straightness is qualified. This detection method mainly relies on the operator to read the data with his eyes, which is prone to errors and has low measurement accuracy. In addition, the operator measures multiple data on the entire guide rail, which is labor-intensive and has low measurement efficiency. Summary of the invention

[0003] Based on this, it is necessary to provide an elevator guide rail alignment detection device with a simple structure and suitable for use at the elevator guide rail installation and unpacking site to address the problems of low measurement accuracy and low measurement efficiency of elevator guide rail alignment in traditional operations. In addition, a method for detecting the alignment of an elevator guide rail using the above device for measurement operations is also provided.

[0004] The technical solution is as follows:

[0005] On the one hand, an elevator guide rail alignment detection device is provided, comprising:

[0006] An operating platform, used for placing the guide rails, with positioning blocks for positioning the guide rails provided on both sides of the operating platform, and the side edges of the bottom of both sides of the guide rails abutting against the positioning blocks respectively;

[0007] A reference component, the reference component comprising a reference sample line, the reference sample line and the connecting line of the positioning blocks on both sides of the operating platform are parallel to each other;

[0008] A detection bracket, wherein the detection bracket is slidably connected to the guide rail, and the detection bracket is provided with a driving component for driving the detection bracket to slide on the guide rail, and a detection component; the detection component includes a first displacement sensor for measuring the vertical distance of the reference sample line, a second displacement sensor for measuring the horizontal distance of the reference sample line, a third displacement sensor for measuring the horizontal distance of one side of the guide rail, and a fourth displacement sensor for measuring the horizontal distance of the other side of the guide rail.

[0009] The technical solution is further described below:

[0010] In one of the embodiments, a level is provided on the upper surface of the operating platform.

[0011] In one of the embodiments, a plurality of height-adjustable adjustable feet are provided at the bottom of the operating platform.

[0012] In one embodiment, the reference assembly further comprises a vertical pole, the vertical pole is provided with a rotating shaft for the reference sample line to be wound around, and the rotating shaft is rotatably connected to the vertical pole.

[0013] In one embodiment, the driving component includes a motor and a first roller driven by the motor to roll on the top surface of the guide rail, a reflective light band is provided on the rim of the first roller, and the detection component also includes a photoelectric tachometer arranged toward the reflective light band.

[0014] In one embodiment, the driving assembly further includes a second roller, a rim of the second roller abuts against a side surface of the guide rail.

[0015] In one of the embodiments, the detection bracket further includes a detection support plate, and the detection component is movably disposed on the detection support plate.

[0016] In one of the embodiments, the detection support plate is provided with an adjustment slot, and the detection component is slidably disposed in the adjustment slot.

[0017] In one embodiment, the distance between the first displacement sensor and the second displacement sensor and the reference sample line is set between 10mm-100mm; the distance between the third displacement sensor and the fourth sensor and the corresponding side surface of the guide rail is set between 10mm-100mm.

[0018] On the other hand, a method for detecting the straightness of an elevator guide rail is provided, comprising the above-mentioned device for detecting the straightness of an elevator guide rail, and further comprising the following steps:

[0019] Placing the guide rail on the operating platform, and making the two sides of the guide rail abut against the positioning blocks on the two sides of the operating platform;

[0020] Arrange the reference sample line so that the reference sample line and the connecting lines of the positioning blocks on both sides of the operating platform are parallel to each other.

[0021] Placing the detection bracket on the guide rail, and allowing the detection bracket to slide on the guide rail under the drive of the driving assembly;

[0022] Align the third displacement sensor with one side of the guide rail in the horizontal direction, and measure the horizontal distance between one side of the guide rail and the third displacement sensor, and record it as L a1 ;

[0023] Align the second displacement sensor with the reference sample line in the horizontal direction, and measure the horizontal distance between the reference sample line and the second displacement sensor, and record it as L b1 , record the horizontal distance between the third displacement sensor and the second displacement sensor as a constant K;

[0024] The horizontal distance between one side of the guide rail and the reference sample line is calculated as L by using the data measured by the third displacement sensor and the second displacement sensor. X1 , continuous detection to obtain continuous sampling data L X1 ......L Xn :

[0025] L X1 =L a1 +L b1 +K ......

[0026] L Xn =L an +L bn +K

[0027] Compare the adjacent sampling data before and after to obtain the parallelism deviation value L between one side of the guide rail and the reference sample line △X1 ......L △Xn :

[0028] L △X1 =L X1 -L X2 =(L a1 +L b1 +K)-(L a2 +L b2 + K) = (L a1 +L b1 )-(L a2 +L b2 ) ......

[0029] L △Xn =(L an +L bn )-(L a(n+1) +L b(n+1) )

[0030] The fluctuation range of the deviation value is compared and analyzed with the standard allowable value. If it does not exceed the standard allowable value, it is judged as qualified. If it exceeds the standard allowable value, it is judged as an unqualified defect point, and the data of the position detection at that time is used for the operator to identify the defect point;

[0031] Align the fourth displacement sensor horizontally with the other side of the guide rail, and measure the horizontal distance between the other side of the guide rail and the fourth displacement sensor, and record it as L c1 , record the horizontal distance between the fourth displacement sensor and the second displacement sensor as a constant G;

[0032] The horizontal distance between the other side of the guide rail and the reference sample line is calculated as L by using the data measured by the fourth displacement sensor and the second displacement sensor. Y1 , continuous detection to obtain continuous sampling data L Y1 ......L Yn :

[0033] L Y1 =L b1 +GL c1 ......

[0034] L Yn =L bn +GL cn

[0035] Compare the adjacent sampling data before and after to obtain the parallelism deviation value L between one side of the guide rail and the reference sample line △Y1 ......L △Yn :

[0036] L △Y1 =L Y1 -L Y2 =(L b1 +GL c1 )-(L b2 +GL c2 )=(L b1 -L c1 )-(L b2 -L c2 ) ......

[0037] L △Yn =(Lbn -L cn )-(L b(n+1) -L c(n+1) )

[0038] The fluctuation range of the deviation value is compared and analyzed with the standard allowable value. If it does not exceed the standard allowable value, it is judged as qualified. If it exceeds the standard allowable value, it is judged as an unqualified defect point, and the data of the position detection at that time is used for the operator to identify the defect point;

[0039] Align the first displacement sensor with the reference sample line in the vertical direction, and measure the vertical distance between the reference sample line and the first displacement sensor, which is recorded as L d1 , continuous detection to obtain continuous sampling data L d1 ......L dn , compare the adjacent sampling data before and after, and obtain the parallelism deviation value L between the top surface of the guide rail and the reference sample line △ d1 ......L △dn :

[0040] L △d1 =L d1 -L d2 ......

[0041] L △dn =L dn -L d[n+1]

[0042] The fluctuation range of this deviation value is compared and analyzed with the standard allowable value. If it does not exceed the standard allowable value, it is judged as qualified. If it exceeds the standard allowable value, it is judged as an unqualified defect point, and the data of the position detection at that moment is used for the operator to identify the defect point.

[0043] Beneficial effects of the present invention:

[0044] Compared with the prior art, an elevator guide rail straightness detection device of the present invention places the guide rail on a horizontally arranged operating platform, and abuts the side edges of the guide rail against the positioning blocks on both sides of the operating platform respectively to keep the guide rail basically parallel, waiting for detection.

[0045] A reference sample line parallel to the line connecting the positioning blocks on both sides is arranged as a reference standard, and the vertical distance between the reference sample line and the first displacement sensor is measured by the first displacement sensor, and the horizontal distance between the reference sample line and the second displacement sensor is measured by the second displacement sensor. In addition, the horizontal distance between one side of the guide rail and the third displacement sensor is measured by the third displacement sensor, and the horizontal distance between the other side of the guide rail and the fourth displacement sensor is measured by the fourth displacement sensor.

[0046] When the drive assembly drives the detection bracket to slide on the guide rail, the four displacement sensors synchronously record and process the relevant data, and the results can be automatically determined and displayed after the test is completed. Compared with the existing technology, this device is conducive to ensuring measurement accuracy, and can greatly reduce the workload of operators and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0049] Figure 1 It is a structural schematic diagram of an elevator guide rail alignment detection device in one embodiment;

[0050] Figure 2 for Figure 1 Schematic diagram of the structure of the detection bracket;

[0051] Figure 3 for Figure 2 Schematic diagram of the structure of the detection support plate.

[0052] Description of reference numerals:

[0053] 100. Operating platform; 110. Positioning block; 120. Level; 130. Adjustable feet;

[0054] 200, guide rail;

[0055] 300, reference assembly; 310, reference sample line; 320, rotating shaft; 330, vertical pole;

[0056] 400, detection bracket; 410, driving assembly; 411, motor; 412, first roller; 413, reflective light band; 414, second roller; 421, first displacement sensor; 422, second displacement sensor; 423, third displacement sensor; 424, fourth displacement sensor; 425, photoelectric tachometer; 430, detection support plate; 431, adjustment slide; 4311, first slide; 4312, second slide; 4313, third slide; 4314, fourth slide; 4315, speed measuring slide; 432, mounting slot; 440, main bracket; 450, control module; 460, power module. DETAILED DESCRIPTION

[0057] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0058] like Figures 1 to 3 As shown, in one embodiment, an elevator guide rail alignment detection device is provided, comprising an operating platform 100, a reference assembly 300 and a detection bracket 400. The operating platform 100 is used to place the guide rail 200, and positioning blocks 110 for positioning and placing the guide rail 200 are provided on both sides of the operating platform 100, and the side edges of the bottom of both sides of the guide rail 200 are respectively abutted against the positioning blocks 110. The reference assembly 300 includes a reference sample line 310, and the reference sample line 310 and the connecting line of the positioning blocks 110 on both sides of the operating platform 100 are parallel to each other.

[0059] The detection bracket 400 is slidably connected to the guide rail 200, and a driving component for driving the detection bracket 400 to slide on the guide rail 200 is provided on the detection bracket 400. The detection bracket 400 is also provided with a detection component, which includes a first displacement sensor 421 for measuring the vertical distance of the reference sample line 310, a second displacement sensor 422 for measuring the horizontal distance of the reference sample line 310, a third displacement sensor 423 for measuring the horizontal distance of one side of the guide rail 200, and a fourth displacement sensor 424 for measuring the horizontal distance of the other side of the guide rail 200.

[0060] Specifically, the guide rail 200 is placed on the horizontally arranged operating platform 100 , and the side edges of the guide rail 200 are respectively brought into contact with the positioning blocks 110 on both sides of the operating platform 100 , thereby completing the placement of the guide rail 200 and waiting for detection.

[0061] A reference sample line 310 parallel to the line connecting the positioning blocks 110 on both sides is arranged as a reference standard, and the vertical distance between the reference sample line 310 and the first displacement sensor 421 is measured by the first displacement sensor 421, and the horizontal distance between the reference sample line 310 and the second displacement sensor 422 is measured by the second displacement sensor 422. In addition, the horizontal distance between one side surface of the guide rail 200 and the third displacement sensor 423 is measured by the third displacement sensor 423, and the horizontal distance between the other side surface of the guide rail 200 and the fourth displacement sensor 424 is measured by the fourth displacement sensor 424.

[0062] When the drive assembly drives the detection bracket 400 to slide on the guide rail 200, the four displacement sensors synchronously record and process the relevant data, and the results can be automatically determined and displayed after the test is completed. Compared with the prior art, the device is conducive to ensuring measurement accuracy, and can greatly reduce the workload of personnel and improve work efficiency.

[0063] In this embodiment, the detection bracket 400 is also provided with a corresponding control module 450 and a power module 460, and the control module 450 is respectively connected to the power module 460 and the drive component and the detection component to control the power module 460 to supply power to the drive component and the detection component respectively, so as to ensure the normal operation of the drive component and the detection component. In addition, the control module 450 controls the drive component to drive the detection bracket 400, and the control module 450 receives the data recorded by the detection component and processes and outputs it, so that the operator can view the relevant data analysis on the terminal and obtain the final detection result.

[0064] Furthermore, in one embodiment, a level meter 120 is provided on the upper surface of the operating platform 100 to measure and ensure that the operating platform 100 is in a horizontal position. Furthermore, in one embodiment, a plurality of height-adjustable adjustable feet 130 are provided at the bottom of the operating platform 100 to facilitate adjustment of the height and levelness of the operating platform 100. First, the level meter 120 is used to determine whether the operating platform 100 is in a horizontal position. If not, the adjustable feet 130 can be operated to keep the operating platform 100 in a horizontal position.

[0065] In a specific application, the adjustable foot 130 can be connected to the operating platform 100 by threaded connection, and the adjustable foot 130 can be raised or lowered by rotating the adjustable foot 130, thereby adjusting the operating platform 100. In addition, a clamping method can also be adopted, and a number of corresponding clamping positions can be set on the operating platform 100 and the adjustable foot 130, and the operating platform 100 can be adjusted by different clamping positions. Of course, other adjustable methods can also be adopted, as long as the adjustable foot 130 can achieve the lifting and lowering adjustment of the operating platform 100, such designs all belong to the protection scope of the present invention.

[0066] In one embodiment, the reference assembly 300 also includes a vertical pole 330, and a rotating shaft 320 is provided on the vertical pole 330 for the reference sample line 310 to be wound around, and the rotating shaft 320 is rotatably connected to the vertical pole 330. By rotating the rotating shaft 320, the reference sample line 310 can be laid out and recovered, and the operation is simple and convenient. In this embodiment, the reference sample line 310 uses a soft steel wire to ensure the tension and linearity of the reference sample line 310 and the accuracy of the measurement data. Of course, the reference sample line 310 is not limited to the soft steel wire material used in this embodiment, as long as the material that can ensure the tension and linearity is sufficient. Such designs all fall within the scope of protection of the present invention.

[0067] More preferably, in one embodiment, the driving assembly includes a motor 410 driving assembly; 411 and a first roller 412 rolling on the top surface of the guide rail 200 driven by the motor 410 driving assembly; 411, and a reflective light band 413 is provided on the rim of the first roller 412, and the detection assembly also includes a photoelectric tachometer 425 arranged toward the reflective light band. During the movement of the first roller 412 from one end to the other end of the guide rail 200, the linear speed of the rim of the first roller 412 is continuously detected by the photoelectric tachometer 425, and the position of the detection bracket 400 on the guide rail 200 can be calculated by multiplying the running time, so that the position of each measuring point measured by the detection assembly can be further determined, which is conducive to ensuring the accuracy of the measurement.

[0068] Furthermore, the driving assembly also includes a second roller 414, the rim of which abuts against the side of the guide rail 200. The second roller 414 assists the detection bracket 400 in sliding on the guide rail 200, so that the detection bracket 400 slides more smoothly, avoiding shaking of the detection bracket 400 during sliding and affecting the detection accuracy of the data.

[0069] like Figures 2 to 3As shown, specifically, in one embodiment, the detection bracket 400 also includes a main bracket 440 and a detection support plate 430, and the detection support plate 430 is provided with a plurality of mounting grooves 432 for mounting and fixing with the main bracket 440, and the detection support plate 430 is fixedly connected with the main bracket 440 by bolts. Among them, the detection component is movably arranged on the detection support plate 430, so that the detection component can be movably adjusted to accurately align with the object to be measured. In addition, the mounting groove 432 is set as an oblong groove, so that the installation position between the detection support plate 430 and the main bracket 440 can be adjusted, which is conducive to the adjustment of the detection component, so that the detection component is easier to align with the object to be measured. Moreover, it can also enable the present device to adapt to the detection of more different specifications of the guide rail 200, avoiding the interference between the detection support plate 430 and the guide rail 200 during installation.

[0070] More specifically, in one embodiment, an adjusting slot 431 is provided on the detection support plate 430, and the detection component is slidably disposed in the adjusting slot 431. In this embodiment, the adjusting slot 431 includes a first slot 4311 for sliding the first displacement sensor 421, a second slot 4312 for sliding the second displacement sensor 422, a third slot 4313 for sliding the third displacement sensor 423, a fourth slot 4314 for sliding the fourth displacement sensor 424, and a speed measuring slot 4315 for sliding the photoelectric speed meter 425. By adjusting the slot 431, the corresponding displacement sensor and the photoelectric speed meter 425 can be adjusted to the corresponding detection position, which is conducive to ensuring the accuracy of the detection data.

[0071] In one embodiment, the distance between the first displacement sensor 421 and the second displacement sensor 422 and the reference sample line 310 is set between 10mm and 100mm; the distance between the third displacement sensor 423 and the fourth sensor 424 and the corresponding side surface of the guide rail 200 is set between 10mm and 100mm. Avoid the displacement sensor from being too close to the object to be measured and causing contact, and avoid the displacement sensor from being too far away from the object to be measured and causing inaccurate data measurement, so as to ensure the reliability and accuracy of the detection data. Of course, according to the parameter specifications of the displacement sensor actually used, the distance between the sensor and the object to be measured can be specifically adjusted, and is not limited to the above-mentioned set data.

[0072] On the other hand, a method for detecting the straightness of an elevator guide rail is provided, comprising the above-mentioned device for detecting the straightness of an elevator guide rail, and further comprising the following steps:

[0073] Place the guide rail 200 on the operating platform 100 , and make both sides of the guide rail 200 abut against the positioning blocks 110 on both sides of the operating platform 100 ;

[0074] The reference sample line 310 is arranged so that the reference sample line 310 and the connecting line of the positioning blocks 110 on both sides of the operating platform 100 are parallel to each other.

[0075] Placing the detection bracket 400 on the guide rail 200, and allowing the detection bracket 400 to slide on the guide rail 200 under the drive of the driving assembly;

[0076] Adjust the third displacement sensor 423 to align with one side of the guide rail 200 in the horizontal direction, and measure the horizontal distance between one side of the guide rail 200 and the third displacement sensor 423, and record it as L a1 ;

[0077] Adjust the second displacement sensor 422 to align with the reference sample line 310 in the horizontal direction, and measure the horizontal distance between the reference sample line 310 and the second displacement sensor 422, which is recorded as L b1 , record the horizontal distance between the third displacement sensor 423 and the second displacement sensor 422 as a constant K;

[0078] The horizontal distance between one side of the guide rail 200 and the reference sample line 310 is calculated as L by using the data measured by the third displacement sensor 423 and the second displacement sensor 422. X1 , continuous detection to obtain continuous sampling data L X1 ......L Xn :

[0079] L X1 =L a1 +L b1 +K ......

[0080] L Xn =L an +L bn +K

[0081] Compare the adjacent sampling data before and after to obtain the parallelism deviation value L between one side of the guide rail 200 and the reference sample line 310 △X1 ......L △Xn :

[0082] L △X1 =L X1 -L X2 =(L a1 +L b1 +K)-(L a2 +L b2 + K) = (L a1 +L b1 )-(L a2 +L b2 ) ......

[0083] L △Xn =(L an +L bn )-(L a(n+1) +L b(n+1) )

[0084] The fluctuation range of the deviation value is compared and analyzed with the standard allowable value. If it does not exceed the standard allowable value, it is judged as qualified. If it exceeds the standard allowable value, it is judged as an unqualified defect point, and the data of the position detection at that time is used for the operator to identify the defect point;

[0085] Adjust the fourth displacement sensor 424 to align with the other side of the guide rail 200 in the horizontal direction, and measure the horizontal distance between the other side of the guide rail 200 and the fourth displacement sensor 424, which is recorded as L c1 , record the horizontal distance between the fourth displacement sensor 424 and the second displacement sensor 422 as a constant G;

[0086] The horizontal distance between the other side of the guide rail 200 and the reference sample line 310 is calculated as L by using the data measured by the fourth displacement sensor 424 and the second displacement sensor 422. Y1 , continuous detection to obtain continuous sampling data L Y1 ......L Yn :

[0087] L Y1 =L b1 +KL c1 ......

[0088] L Yn =L bn +KL cn

[0089] Compare the adjacent sampling data before and after to obtain the parallelism deviation value L between one side of the guide rail 200 and the reference sample line 310 △Y1 ......L △Yn :

[0090] L △Y1 =L Y1 -L Y2 =(L b1 +KL c1 )-(L b2 +KL c2 )=(L b1 -L c1 )-(L b2 -L c2 ) ......

[0091] L△Yn =(L bn -L cn )-(L b(n+1) -L c(n+1) )

[0092] The fluctuation range of the deviation value is compared and analyzed with the standard allowable value. If it does not exceed the standard allowable value, it is judged as qualified. If it exceeds the standard allowable value, it is judged as an unqualified defect point, and the data of the position detection at that time is used for the operator to identify the defect point;

[0093] Adjust the first displacement sensor 421 to align with the reference sample line 310 in the vertical direction, and measure the vertical distance between the reference sample line 310 and the first displacement sensor 421, which is recorded as L d1 , continuous detection to obtain continuous sampling data L d1 ......L dn , compare the adjacent sampling data before and after, and obtain the parallelism deviation value L between the top surface of the guide rail 200 and the reference sample line 310 △d1 ......L △dn :

[0094] L △d1 =L d1 -L d2 ......

[0095] L △dn =L dn -L d[n+1]

[0096] The fluctuation range of this deviation value is compared and analyzed with the standard allowable value. If it does not exceed the standard allowable value, it is judged as qualified. If it exceeds the standard allowable value, it is judged as an unqualified defect point, and the data of the position detection at that moment is used for the operator to identify the defect point.

[0097] It should be noted that "some body" or "some part" can be a part of the corresponding "component", that is, "some body" or "some part" can be integrally formed with the "other parts of the component"; it can also be an independent component that can be separated from the "other parts of the component", that is, "some body" or "some part" can be manufactured independently and then combined with the "other parts of the component" into a whole. The expression of the above-mentioned "some body" or "some part" in this application is only one of the embodiments, for the convenience of reading, and not to limit the scope of protection of this application. As long as it contains the above-mentioned features and has the same function, it should be understood as an equivalent technical solution of this application.

[0098] It should be noted that the components included in the "unit", "assembly", "mechanism" and "device" of this application can also be flexibly combined, that is, modular production can be carried out according to actual needs to facilitate modular assembly. The division of the above components in this application is only one of the embodiments, for the convenience of reading, and not to limit the scope of protection of this application. As long as the above components are included and have the same functions, it should be understood that it is an equivalent technical solution of this application.

[0099] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. The term "and / or" used in the present invention includes any and all combinations of one or more related listed items.

[0100] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0101] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0102] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0103] It should be noted that when an element is referred to as being "fixed on", "set on", "fixed on" or "installed on" another element, it can be directly on the other element or there can be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a central element at the same time. Further, when an element is considered to be "fixed transmission connected" to another element, the two can be fixed in a detachable connection manner or in a non-detachable connection, as long as power transmission can be achieved, such as socketing, snap-on, one-piece molding fixation, welding, etc., which can be achieved in the prior art and will not be repeated here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is vertical, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0104] It should also be understood that when explaining the connection relationship or positional relationship of elements, although not explicitly described, the connection relationship and positional relationship are interpreted as including an error range, which should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" may mean within one or more standard deviations, which are not limited here.

[0105] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0106] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An elevator guide rail alignment detection device, characterized in that: include: An operating platform (100) is used to place a guide rail (200), and positioning blocks (110) for positioning and placing the guide rail (200) are provided on both sides of the operating platform (100), and the side edges of the bottom of both sides of the guide rail (200) are respectively in contact with the positioning blocks (110); A reference component (300), the reference component (300) comprising a reference sample line (310), the reference sample line (310) and a line connecting the positioning blocks (110) on both sides of the operating platform (100) being parallel to each other; A detection bracket (400), wherein the detection bracket (400) is slidably connected to the guide rail (200), and the detection bracket (400) is provided with a driving component for driving the detection bracket (400) to slide on the guide rail (200), and a detection component; the detection component comprises a first displacement sensor (421) for measuring the vertical distance of the reference sample line (310), a second displacement sensor for measuring the horizontal distance of the reference sample line (310), a third displacement sensor for measuring the horizontal distance of one side of the guide rail (200), and a fourth displacement sensor (424) for measuring the horizontal distance of the other side of the guide rail (200).

2. An elevator guide rail straightness detection device according to claim 1, characterized in that: A level (120) is provided on the upper surface of the operating platform (100).

3. An elevator guide rail straightness detection device according to claim 1, characterized in that: The bottom of the operating platform (100) is provided with a plurality of adjustable feet (130) with adjustable heights.

4. The elevator guide rail straightness detection device according to claim 1, characterized in that: The reference assembly (300) further comprises a vertical pole (330), on which a rotating shaft (320) for the reference sample line (310) to be wound is provided, and the rotating shaft (320) is rotatably connected to the vertical pole (330).

5. The elevator guide rail straightness detection device according to claim 1, characterized in that: The driving assembly comprises a motor and a first roller driven by the motor to roll on the top surface of the guide rail (200), a reflective light band (413) being provided on the rim of the first roller, and the detection assembly further comprises a photoelectric tachometer (425) arranged toward the reflective light band.

6. The elevator guide rail straightness detection device according to claim 1, characterized in that: The driving assembly further comprises a second roller (414), the rim of the second roller (414) being in contact with the side surface of the guide rail (200).

7. The elevator guide rail straightness detection device according to claim 1, characterized in that: The detection bracket (400) further comprises a detection support plate (430), and the detection component is movably arranged on the detection support plate (430).

8. An elevator guide rail straightness detection device according to claim 7, characterized in that: The detection support plate (430) is provided with an adjustment slide groove (431), and the detection component is slidably arranged in the adjustment slide groove (431).

9. The elevator guide rail straightness detection device according to claim 1, characterized in that: The distances between the first displacement sensor (421) and the second displacement sensor and the reference sample line (310) are set between 10 mm and 100 mm; and the distances between the third displacement sensor and the fourth displacement sensor (424) and the corresponding side surface of the guide rail (200) are set between 10 mm and 100 mm.

10. A method for detecting the straightness of an elevator guide rail, characterized in that: The device for detecting the straightness of an elevator guide rail according to any one of claims 1 to 9 further comprises the following steps: Placing the guide rail (200) on the operating platform (100), and making two sides of the guide rail (200) abut against the positioning blocks (110) on two sides of the operating platform (100); Arranging the reference sample line (310) so that the reference sample line (310) and the connecting lines of the positioning blocks (110) on both sides of the operating platform (100) are parallel to each other; Placing the detection bracket (400) on the guide rail (200), and allowing the detection bracket (400) to slide on the guide rail (200) under the drive of the drive assembly; The third displacement sensor (423) is aligned with one side surface of the guide rail (200) in the horizontal direction, and the horizontal distance between one side surface of the guide rail (200) and the third displacement sensor (423) is measured and recorded as L a1 ; The second displacement sensor (422) is aligned with the reference sample line (310) in the horizontal direction, and the horizontal distance between the reference sample line (310) and the second displacement sensor (422) is measured and recorded as L b1 , recording the horizontal distance between the third displacement sensor (423) and the second displacement sensor (422) as a constant K; The horizontal distance between one side of the guide rail (200) and the reference sample line (310) is calculated as L based on the data measured by the third displacement sensor (423) and the second displacement sensor (422). X1 , continuous detection to obtain continuous sampling data L X1 ......L Xn : L X1 =L a1 +L b1 +K ...... L Xn =L an +L bn +K By comparing the adjacent sampling data, the parallelism deviation value L between one side surface of the guide rail (200) and the reference sample line (310) is obtained. △X1 ......L △Xn : L △X1 =L X1 -L X2 =(L a1 +L b1 +K)-(L a2 +L b2 +K)=(L a1 +L b1 )-(L a2 +L b2 ) ...... L △Xn =(L an +L bn )-(L a(n+1) +L b(n+1) ) The fluctuation range of the deviation value is compared and analyzed with the standard allowable value. If it does not exceed the standard allowable value, it is judged as qualified. If it exceeds the standard allowable value, it is judged as an unqualified defect point, and the data of the position detection at that time is used for the operator to identify the defect point; The fourth displacement sensor (424) is aligned with the other side of the guide rail (200) in the horizontal direction, and the horizontal distance between the other side of the guide rail (200) and the fourth displacement sensor (424) is measured and recorded as L c1 , recording the horizontal distance between the fourth displacement sensor (424) and the second displacement sensor (422) as a constant G; The horizontal distance between the other side of the guide rail (200) and the reference sample line (310) is calculated as L based on the data measured by the fourth displacement sensor (424) and the second displacement sensor (422). Y1 , continuous detection to obtain continuous sampling data L Y1 ......L Yn : L Y1 =L b1 +G-L c1 ...... L Yn =L bn +G-L cn By comparing the adjacent sampling data, the parallelism deviation value L between one side surface of the guide rail (200) and the reference sample line (310) is obtained. △Y1 ......L △Yn : L △Y1 =L Y1 -L Y2 =(L b1 +G-L c1 )-(L b2 +G-L c2 )=(L b1 -L c1 )-(L b2 -L c2 ) ...... L △Yn =(L bn -L cn )-(L b(n+1) -L c(n+1) ) The fluctuation range of the deviation value is compared and analyzed with the standard allowable value. If it does not exceed the standard allowable value, it is judged as qualified. If it exceeds the standard allowable value, it is judged as an unqualified defect point, and the data of the position detection at that time is used for the operator to identify the defect point; Align the first displacement sensor (421) with the reference sample line (310) in the vertical direction, and measure the vertical distance between the reference sample line (310) and the first displacement sensor (421), and record it as L d1 , continuous detection to obtain continuous sampling data L d1 ......L dn , compare the adjacent sampling data before and after to obtain the parallelism deviation value L between the top surface of the guide rail (200) and the reference sample line (310) △d1 ......L △dn : L △d1 =L d1 -L d2 ...... L △dn =L dn -L d [ n+1 ] The fluctuation range of this deviation value is compared and analyzed with the standard allowable value. If it does not exceed the standard allowable value, it is judged as qualified. If it exceeds the standard allowable value, it is judged as an unqualified defect point, and the data of the position detection at that moment is used for the operator to identify the defect point.

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