Elevator guide rail perpendicularity detection method

Abstract

The invention discloses an elevator guide rail verticality detection method, which is characterized in that a simulation detection assembly is installed on a guide rail, the simulation detection assembly comprises two groups of lifting arms, a laser emitter, a laser inductor and an inductor display panel, and the laser inductor is provided with a laser induction area; lifting a lifting arm to the top of the guide rail and below the motor; the laser transmitter is started, measurement is started, the motor is started, the rope is released through the motor, the lifting arm slides downwards along the guide rail under the gravity of the lifting arm, the rope releasing distance of the motor is the distance stroke, and the laser inductor induces and obtains the jumping position of a laser point in an induction area under each distance stroke distance in real time; the lifting arm moves to the bottommost part of the guide rail, measurement is finished, and the sensor display panel generates a transverse deviation curve graph and a longitudinal deviation curve graph according to the distance stroke and the position of the laser point in the sensing area; and judging the perpendicularity of the guide rail according to the transverse deviation curve graph and the longitudinal deviation curve graph. The verticality of the guide rail can be quickly judged, the detection efficiency is high, the speed is high, and the operation is simple and can be quickly completed by one person. And meanwhile, if the perpendicularity of the guide rail has a problem, the specific position with the perpendicularity problem can be quickly found according to the distance stroke, and quick adjustment is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and particularly to a method for detecting the perpendicularity of elevator guide rails. Background Art

[0002] After the installation of an elevator is completed, the perpendicularity of the guide rails is generally detected. This detection is used to check the perpendicularity of the guide rails. The perpendicularity of the guide rails affects the comfort of the elevator running up and down. If the perpendicularity deviation is large, the elevator will vibrate and make noise during operation, affecting the comfort of the elevator operation. The perpendicularity needs to be ensured within a certain range. The current detection methods are: whole wire hanging detection, segmented wire hanging detection, and slow car laser detection on the car, etc. These detection methods are not efficient and time-consuming.

[0003] In addition, the conventional detection methods are all carried out after the installation of the elevator is completed. At this time, the car and the counterweight have both been installed. Although the detection is relatively convenient, it is more troublesome to correct the guide rails if the deviation of the guide rails is relatively large. Summary of the Invention

[0004] Based on the above, the purpose of the present invention is to provide a method for detecting the perpendicularity of elevator guide rails, which is detected before the installation of the car and the counterweight, has high detection efficiency, is simple and convenient to operate, and has high detection accuracy.

[0005] To achieve the above object, the technical solution adopted in this aspect is as follows:

[0006] Install a simulation detection component on the guide rail. The simulation detection component includes two sets of lifting arms, a laser emitter, a laser sensor, and a sensor display panel. A laser sensing area is provided on the laser sensor;

[0007] Before measurement, lift the lifting arm to the top of the guide rail and below the motor;

[0008] Turn on the laser emitter to start measurement. Start the motor, and the motor pays out the rope. Under its own gravity, the lifting arm slides down along the guide rail. The distance that the motor pays out the rope is the distance travel. The laser sensor continuously senses and obtains the jumping position of the laser point in the sensing area at each distance travel distance;

[0009] When the lifting arm moves to the bottom of the guide rail, the measurement ends. The sensor display panel generates a horizontal deviation curve graph and a vertical deviation curve graph according to the distance travel and the position of the laser point in the sensing area;

[0010] Judge the perpendicularity of the guide rail according to the horizontal deviation curve graph and the vertical deviation curve graph.

[0011] The present invention has at least the following beneficial effects:

[0012] (1) Simulate the up and down movement of the elevator car with a simulation detection component to detect the perpendicularity of the guide rail. Compared with the prior art, the detection efficiency is high, the operation is simple and convenient, and if there is a problem with the perpendicularity of the guide rail, it can be quickly adjusted;

[0013] (2) For the simulation detection component of the present invention, the rope is released by a motor, the sliding plate moves downward along the guide rail, the laser sensor senses the sensing position of the laser point of the laser emitter at each distance travel in real time, and the sensor display panel generates a horizontal deviation curve graph and a vertical deviation curve graph according to the distance travel and the position of the laser point in the sensing area. According to the horizontal deviation curve graph and the vertical deviation curve graph, the perpendicularity of the guide rail can be quickly judged, the detection efficiency is high, the speed is fast, and the operation is simple and can be quickly completed by one person. At the same time, if there is a problem with the perpendicularity of the guide rail, the specific position with the perpendicularity problem can be quickly found according to the distance travel, and the guide rail can be quickly adjusted.

[0014] (3) The two sets of lifting arms are connected by elastic members, so that when the two sets of sliding plates move on the guide rail, under the action of elastic force, the rolling parts are closely attached to the guide rail surface, ensuring the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present invention and these drawings.

[0016] Figure 1 It is a schematic structural diagram of the hardware of a method for detecting the perpendicularity of a guide rail provided by an embodiment of the present invention;

[0017] Figure 2 It is a schematic structural diagram of the simulation detection component provided by an embodiment of the present invention;

[0018] Figure 3 It is a schematic structural diagram of the sensing area of the laser sensor provided by an embodiment of the present invention;

[0019] Figure 4 It is a qualified curve graph displayed by the sensor display panel provided by an embodiment of the present invention;

[0020] Figure 5 It is an unqualified curve graph displayed by the sensor display panel provided by an embodiment of the present invention.

[0021] In the figure:

[0022] 1. Guide rail; 2. Detection frame; 21. Sliding plate; 211. Avoidance opening; 22. Lifting arm; 221. Connecting plate; 222. Connecting hole; 223. First waist-shaped hole; 3. Laser emitter; 4. Roller part; 401. Side roller; 402. Back roller; 5. Elastic member; 6. Adjusting arm; 61. Second waist-shaped hole; 7. Hinge buckle; 8. Laser sensor; 801. Horizontal line; 802. Vertical line; 803. Laser dot; 804. Default induction qualified area; 805. Horizontal positive and vertical positive induction area; 806. Horizontal negative and vertical positive induction area; 807. Horizontal positive and vertical negative induction area; 808. Horizontal negative and vertical negative induction area; 9. Motor; 91. Lifting rope; 92. Fixed plate; 100. Sensor display panel. Detailed implementation manner

[0023] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present invention.

[0024] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but through other features between them. Moreover, the first feature being "above", "above" and "on the top" of the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below" and "under the bottom" of the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

[0026] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0027] As Figure 1 and 2 shown, the present invention provides a hardware for a guide rail verticality detection method, including: an analog detection component, which is arranged on the guide rail 1 after the installation of the guide rail 1 is completed and before the installation of the car.

[0028] In the embodiment of the present invention, the analog detection component is arranged on the guide rail 1 after the installation of the guide rail 1 is completed and before the installation of the car. The up and down movement of the elevator car is simulated by the analog detection component to detect the verticality of the guide rail 1. Compared with the prior art, the detection efficiency is high, the operation is simple and convenient, and if there is a problem with the verticality of the guide rail 1, it can be quickly adjusted.

[0029] Among them, the analog detection component includes: two groups of detection frames 2, which are respectively slidably arranged on both sides of the guide rail 1 one by one. The detection frame 2 includes a sliding plate 21 and a lifting arm 22 connecting the sliding plate 21. The sliding plate 21 and the lifting arm 22 are integrally formed. The sliding plate 21 and the lifting arm 22 form an angle, preferably an acute angle, between 85° and 60°. When the lifting arm 22 is tightened, the sliding plate 21 can be tightly attached to the sliding rail direction; a roller part 4 and a laser emitter 3 are arranged on the sliding plate 21; the two groups of lifting arms 22 are connected by an elastic member 5; two groups of adjusting arms 6 are respectively connected to the lifting arm 22 one by one, and the two groups of adjusting arms 6 are also hinged by a hinge buckle 7; a fixing plate 92 is arranged on the top of the guide rail 1 and is respectively connected to the two groups of guide rails 1. A motor 9 is arranged on the fixing plate 92, and the motor 9 is arranged in the middle of the fixing plate 92, that is, in the middle of the two groups of guide rails 1. The output end of the motor 9 is connected to a lifting rope 91, and the lifting rope 91 is connected to the hinge buckle 7; two groups of laser sensors 8 are arranged on one side of the bottom of the guide rail 1 and are respectively arranged under the laser emitter 3 one by one; a sensor display panel 100 is used to receive the induction signal of the laser sensor 8 and generate a deviation curve graph.

[0030] In the embodiment of the present invention, before measurement, the lifting arm 22 is raised to the top of the guide rail 1. When starting the measurement, the rope is released through the motor 9. Under the action of gravity, the detection frame 2 moves downward closely along the guide rail 1. The laser point of the laser emitter 3 hits the position of the laser sensor 8, and the jumping position of the laser point at each distance travel is obtained in real time. A deviation curve graph is formed on the sensor display panel 100 to judge the perpendicularity of the guide rail 1. The detection efficiency is high, the speed is fast, and the operation is simple. One person can quickly complete it. At the same time, if there is a problem with the perpendicularity of the guide rail 1, the specific position with the perpendicularity problem can be quickly found according to the distance travel and adjusted quickly. Further, the two groups of lifting arms 22 are connected by an elastic member 5, so that when the two groups of sliding plates 21 move on the guide rail 1, under the action of elastic force, the rolling part closely adheres to the surface of the guide rail 1, ensuring the measurement accuracy.

[0031] As a preferred embodiment of the present invention, as Figure 1 and 2 shown, a integrally formed connecting plate 221 is provided at the bottom of the side of the lifting arm 22 close to the adjusting arm 6. A connecting hole 222 is provided on the connecting plate 221, and both ends of the elastic member 5 are respectively connected to the connecting holes 222 on the two groups of connecting plates 221. Specifically, the elastic member 5 can be a spring, a spring sheet, etc., and is a spring in the embodiment of the present invention. Since the angle between the lifting arm 22 and the sliding plate 21 is an acute angle, the connecting plate 221 is provided at the bottom of the side of the lifting arm 22 close to the adjusting arm 6, and the connecting plate 221 extends obliquely downward. When the elastic member 5 connects the two groups of connecting plates 221, the elastic force provided by the spring is exactly perpendicular to the sliding plate 21 in direction, so that the roller part 4 on the sliding plate 21 can closely adhere to the surface of the guide rail 1, ensuring the measurement accuracy.

[0032] As a preferred embodiment of the present invention, as Figure 1 and 2 shown, a plurality of first waist holes 223 are provided on the lifting arm 22, and a plurality of second waist holes 61 are provided on the adjusting arm 6. The lifting arm 22 and the adjusting arm 6 are connected by a locking bolt passing through the first waist holes 223 and the second waist holes 61. Specifically, in the embodiment of the present invention, the position of the adjusting arm 6 can be adjusted through the first waist holes 223 and the second waist holes 61, so that the hinge buckle 7 of the adjusting arm 6 can be exactly located directly below the motor 9. When the lifting rope 91 releases the rope, it is ensured that the two groups of detection frames 2 move downward simultaneously.

[0033] As a preferred embodiment of the present invention, as Figure 1 and 2As shown, the roller part 4 includes four groups of side rollers 401, and the four groups of side rollers 401 are respectively arranged in two-by-two side-by-side intervals and rotatably arranged on the sliding plate 21; two groups of back rollers 402, which are rotatably connected to the sliding plate 21 and are respectively arranged on the upper and lower sides of the side rollers 401. Optionally, two avoidance openings 211 are provided on the sliding plate 21, and the avoidance openings 211 are arranged in a one-to-one correspondence with the back rollers 402, and the avoidance openings 211 are used to avoid the back rollers 402. Specifically, in the embodiment of the present invention, the guide rail 1 is usually a T-shaped guide rail 1, and the back rollers 402 and the side rollers 401 just wrap the surfaces of the guide rail 1 to ensure the measurement accuracy.

[0034] As a preferred way of the embodiment of the present invention, as Figures 1 to 3 shown, an induction area is provided on the laser sensor 8, which includes a horizontal line 801 and a vertical line 802 that are perpendicular to each other. The intersection point of the horizontal line 801 and the vertical line 802 is the laser dot 803. The horizontal line 801, the vertical line 802 and the laser dot 803 divide the induction area into a default induction qualified area 804, a horizontal positive and vertical positive induction area 805, a horizontal negative and vertical positive induction area 806, a horizontal positive and vertical negative induction area 807 and a horizontal negative and vertical negative induction area 808. The area within 2.0 mm of the laser dot 803 is the default induction qualified area 804. Specifically, when starting the measurement, it is necessary to make the laser dot of the laser emitter 3 coincide with the laser dot 803. The laser dot 803, the horizontal line 801 and the vertical line 802 divide the induction area into a default induction qualified area 804, a horizontal positive and vertical positive induction area 805, a horizontal negative and vertical positive induction area 806, a horizontal positive and vertical negative induction area 807 and a horizontal negative and vertical negative induction area 808. When the laser dot jumps in the corresponding induction area, an induction mark point will be formed, and a deviation curve graph will be generated on the sensor display panel 100 to judge the perpendicularity of the guide rail 1. At the same time, if there is a problem with the perpendicularity of the guide rail 1, the specific position with the perpendicularity problem can be quickly found according to the distance travel, and quick adjustment can be made.

[0035] The embodiment of the present invention provides an elevator guide rail perpendicularity detection method as described above, including the following steps:

[0036] After the installation of the guide rail 1 is completed and before the installation of the car, install the simulation detection component on the guide rail 1;

[0037] Before measurement, lift the lifting arm 22 to the top of the guide rail 1 and below the motor 9;

[0038] Turn on the laser emitter 3, ensure that the laser point emitted by the laser emitter 3 overlaps with the laser dot 803 on the laser sensor 8, and adjust the horizontal line 801 of the laser sensor 8 so that the horizontal line 801 is parallel to the guide rail 1. Specifically, the guide rail 1 is a T-shaped guide rail 1, which includes a horizontal guide rail surface and a vertical guide rail surface. It is necessary to ensure that the horizontal guide rail 1 surface is parallel to the horizontal line 801;

[0039] Start the measurement, start the motor 9. The motor 9 contains a rotary encoder, and the signal of the rotary encoder is transmitted to the laser sensor 8 at the same time. The motor 9 pays out the rope. Under its own gravity, the lifting arm 22 slides down along the guide rail 1. The rotary encoder is used to provide rotation data to obtain the distance travel H. The laser sensor 8 senses and obtains the jumping position of the laser point in the sensing area at each distance travel H in real time;

[0040] When the lifting arm 22 moves to the bottom of the guide rail 1, the measurement ends. The sensor display panel 100 generates a horizontal deviation curve graph and a vertical deviation curve graph according to the distance travel H and the position of the laser point in the sensing area. The abscissa of the horizontal deviation curve graph and the vertical deviation curve graph is the travel position H, and the ordinates are the horizontal deviation value and the vertical deviation value respectively; Preferably, positive and negative qualified lines are set on both the horizontal deviation curve graph and the vertical deviation curve graph, that is, positive and negative qualified values are set.

[0041] The mapping principle of the horizontal deviation curve graph and the vertical deviation curve graph is as follows: For example, take a point at a certain moment T1 on the laser sensor. This point is similar to the XY plane coordinate line, and there is a horizontal value X1 and a vertical value Y1 on it. X1 can be judged as a positive or negative value according to the area where it is located, and the same is true for Y1. At the moment T1, the distance travel H that the laser emitter 3 moves down can be calculated according to the data of the rotary encoder, so as to calculate the travel position H1. At this time, a point can be drawn on the horizontal deviation curve graph with H1 on the abscissa and X1 on the ordinate. Then, through the points (H2, X2), (H3, X3), (H4, X4)... at each position, each continuous point forms a curve. The same is true for the distance travel H and the Y vertical deviation curve;

[0042] Judge the perpendicularity of the guide rail 1 according to the horizontal deviation curve graph and the vertical deviation curve graph.

[0043] Specifically, as Figure 4 and Figure 5 shown, Figure 4 It is the qualified curve graph displayed by the sensor display panel 100. The curve is within the qualified value range, indicating that the perpendicularity of the guide rail 1 is qualified. Figure 5It is a non-conforming curve graph displayed on the sensor display panel 100. The curve exceeds the qualified value range, and the surface perpendicularity is unqualified. The position with a problem in perpendicularity is the position where the curve exceeds the qualified value at the abscissa at the stroke position H. At this time, the perpendicularity of the guide rail 1 at this stroke position can be adjusted according to the stroke position of the curve and the range exceeding the qualified value.

[0044] In the embodiment of the present invention, the rope is released by driving the motor 9, and the sliding plate 21 moves downward along the guide rail 1. The laser sensor 8 senses the induction position of the laser point of the laser transmitter 3 at each distance stroke in real time. The sensor display panel 100 generates a lateral deviation curve graph and a longitudinal deviation curve graph according to the distance stroke and the position of the laser point in the induction area. According to the lateral deviation curve graph and the longitudinal deviation curve graph, the perpendicularity of the guide rail 1 can be quickly judged, the detection efficiency is high, the speed is fast, and the operation is simple and can be quickly completed by one person. At the same time, if there is a problem with the perpendicularity of the guide rail 1, the specific position with a problem in perpendicularity can be quickly found according to the distance stroke, and the guide rail can be quickly adjusted.

[0045] Note that the above is only the preferred embodiment of the present invention and the applied technical principle. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described here. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A method for detecting the verticality of an elevator guide rail, characterized in that: include: Installing a simulation detection component on the guide rail, the simulation detection component includes two groups of lifting arms, two groups of laser transmitters, two groups of laser sensors and a sensor display panel, and a laser sensing area is provided on the laser sensor; Before measuring, lift the lifting arm to the top of the guide rail and below the motor; Turn on the laser transmitter, start measuring, start the motor, the motor releases the rope, the lifting arm slides down along the guide rail under its own gravity, the distance the motor releases the rope is the distance stroke, and the laser sensor senses and obtains the jumping position of the laser point in the sensing area at each distance of the distance stroke in real time; The lifting arm moves to the bottom of the guide rail, and the measurement is completed. The sensor display panel generates a lateral deviation curve graph and a longitudinal deviation curve graph according to the distance traveled and the position of the laser point in the sensing area; The verticality of the guide rail is determined based on the lateral deviation curve graph and the longitudinal deviation curve graph.

2. The method for detecting the verticality of an elevator guide rail according to claim 1, characterized in that: The motor includes a rotary encoder, and a signal of the rotary encoder is simultaneously transmitted to the laser sensor. The rotary encoder is used to provide rotation data to obtain the distance traveled.

3. The method for detecting the verticality of an elevator guide rail according to claim 1, characterized in that: The sensing area includes mutually perpendicular transverse lines and longitudinal lines, the intersection of the transverse lines and the longitudinal lines is a laser dot, the transverse lines, the longitudinal lines and the laser dot divide the sensing area into a default sensing qualified area, a transverse positive and longitudinal positive sensing area, a transverse negative and longitudinal positive sensing area, a transverse positive and longitudinal negative sensing area and a transverse negative and longitudinal negative sensing area, and the default sensing qualified area is within 2.0 mm of the laser dot.

4. A method for detecting the verticality of an elevator guide rail according to claim 3, characterized in that: Turning on the laser transmitter specifically includes: Ensure that the laser spot emitted by the laser transmitter overlaps with the laser dot on the laser sensor, and adjust the transverse line of the laser sensor so that the transverse line is parallel to the guide rail.

5. A method for detecting the verticality of an elevator guide rail according to claim 4, characterized in that: A positive qualified line and a negative qualified line are set on both the lateral deviation curve graph and the longitudinal deviation curve graph.

6. The method for detecting the verticality of an elevator guide rail according to claim 1, characterized in that: The simulation detection assembly also includes two groups of detection frames, two groups of adjustment arms and a fixed plate, the detection room includes a sliding plate and the lifting arm connected to the sliding plate, the sliding plate is provided with a roller part and the laser emitter, and the two groups of lifting arms are elastically connected; The two groups of adjusting arms are connected to the lifting arms one by one respectively, and the two groups of adjusting arms are hinged to each other; The fixing plate is arranged on the top of the guide rail and is respectively connected to the two groups of the guide rails. The motor is arranged on the fixing plate. The output end of the motor is connected to a pulling rope, and the pulling rope is connected to the hinge position between the two groups of the adjusting arms.

7. A method for detecting the verticality of an elevator guide rail according to claim 6, characterized in that: The two groups of adjusting arms are hingedly connected via a hinge ring; The bottom of the pulling rope is connected to the hinge ring.

8. The method for detecting the verticality of elevator guide rails according to claim 6, characterized in that: The two groups of lifting arms are connected via springs.

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