Automatic grinding and straightening system for elevator guide rail

Abstract

The invention discloses an automatic elevator guide rail grinding and straightening system which comprises a winch, a reference guide rail, a lifting base, a first linear driving device, a first moving seat, a first grinding executing mechanism, a second linear driving device, a second moving seat, a second grinding executing mechanism, a first special-shaped detection device, a second special-shaped detection device and a control box. A benchmark guide rail and a combined guide rail are installed in an elevator shaft, the combined guide rail is located beside the benchmark guide rail, a lifting base is installed on the benchmark guide rail, the lifting base can ascend and descend under the guidance of the benchmark guide rail and is connected to the output end of a winch, and the winch is installed in a control room at the top of the elevator shaft and used for driving the lifting base to ascend and descend. And a first linear driving device and a second linear driving device are mounted on the lifting base. According to the automatic grinding and straightening system for the elevator guide rail, the problem that in the prior art, the operation efficiency is low due to deformation of a manual grinding joint is solved.

Description

Technical Field

[0001] The invention relates to equipment for installing elevators, and in particular to an automatic grinding and straightening system for elevator guide rails. Background Art

[0002] In the process of elevator shaft manufacturing, the reference guide rail needs to be manufactured first. The reference guide rail is located in the vertical direction under the debugging of the operator, and there is no deformation at the connection (that is, the connection is randomly tilted and deformed). Then, the assembly guide rail is installed next to the reference guide rail. Figure 1 As shown, the assembled guide rail includes: at least two guide rail sections, the guide rail sections are overlapped in the vertical direction to obtain the assembled guide rail, and the adjacent guide rail sections are connected by welding or other methods, which may easily cause deformation at the connection, resulting in the guide car not moving in a strictly linear motion, and abnormal noise may occur when the elevator car and the assembled guide rail are in sliding contact, which may easily cause obstruction in the operation of the elevator car and reduce the safety of the elevator operation.

[0003] The existing method for dealing with burrs at two adjacent rail sections in the assembled rail is: after suspending the worker, the worker holds a grinding device and grinds the deformation at the two rail sections. Although this operation method can grind away the deformation at the two rail sections, it still has the following disadvantages: 1) low operation efficiency; 2) it is difficult to control the accuracy of grinding away the deformation at the connection, and grooves or protrusions are still likely to appear at the rail sections. The grinding accuracy is low and the smoothness requirements of the combined rail cannot be met. Summary of the invention

[0004] The present invention provides an automatic grinding and straightening system for elevator guide rails, which solves the problem of low operating efficiency caused by deformation of joints caused by manual grinding in the prior art.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] The invention discloses an automatic grinding and straightening system for elevator guide rails, comprising: a hoist, a reference guide rail, a lifting base, a first linear drive device, a first moving seat, a first grinding actuator, a second linear drive device, a second moving seat, a second grinding actuator, a first special-shaped detection device, a second special-shaped detection device and a control box, wherein a reference guide rail and a combined guide rail are installed in an elevator shaft, the combined guide rail is located beside the reference guide rail, a lifting base is installed on the reference guide rail, the lifting base can be lifted and lowered under the guidance of the reference guide rail, the lifting base is connected to the output end of the hoist, the hoist is installed in a control room at the top of the elevator shaft, the hoist is used to drive the lifting base to lift; a first linear drive device and a second linear drive device are installed on the lifting base, a first moving seat and a second moving seat that can approach or move away from each other are installed on the lifting base, the output end of the first linear drive device is connected to the first moving seat, the output end of the second linear drive device is connected to the second moving seat, and the first linear drive device is installed on the first moving seat A grinding actuator, a first grinding actuator is used to grind the first side surface of the combined guide rail, a second grinding actuator is installed on the second movable seat, and the second grinding actuator is used to grind the second side surface of the combined guide rail; a first special-shaped detection device is installed on the first movable seat, and the first special-shaped detection device is used to detect the first protrusion detection data of the first side surface of the combined guide rail relative to the vertical direction, and a second special-shaped detection device is installed on the second movable seat, and the second special-shaped detection device is used to detect the second protrusion detection data of the second side surface of the combined guide rail relative to the vertical direction; the output end of the first special-shaped detection device is connected to the first input end of the control box, the first output end of the control box is connected to the first linear drive device, and the control box is used to control the operation of the first linear drive device according to the first protrusion detection data; the output end of the second special-shaped detection device is connected to the second input end of the control box, the second output end of the control box is connected to the second linear drive device, and the control box is used to control the operation of the second linear drive device according to the second protrusion detection data.

[0007] Preferably, a suspension frame is installed in the control room at the top of the elevator shaft, and a first pendant is suspended on the suspension frame by a first suspension rope, and the first suspension rope is located next to the first side surface of the combined guide rail, and the first special-shaped detection device is used to detect the first protrusion detection data of the first side surface of the combined guide rail relative to the vertical direction by detecting the relative position of the first suspension rope and the first side surface of the combined guide rail; a second pendant is suspended on the suspension frame by a second suspension rope, and the second suspension rope is located next to the second side surface of the combined guide rail, and the second special-shaped detection device is used to detect the protrusion detection data of the second side surface of the combined guide rail relative to the vertical direction by detecting the relative position of the second suspension rope and the second side surface of the combined guide rail.

[0008] Preferably, the first special-shaped detection device and the second special-shaped detection device are both cameras, and the control box includes: a first image processing chip, a second image processing chip, a control chip, a first motor driving chip and a second motor driving chip, the camera output end is connected to the first image processing chip input end or the second image processing chip input end, the first image processing chip output end and the second image processing chip output end are respectively connected to the first input end and the second input end of the control chip, the first output end of the control chip is connected to the first motor driving chip input end, the first motor driving chip controls the operation of the first linear driving device, the first and second output ends of the control chip are connected to the second motor driving chip input end, and the second motor driving chip controls the operation of the second linear driving device.

[0009] Preferably, the steps of straightening the combined guide rails using the elevator guide rail automatic grinding and straightening system are as follows:

[0010] S1. Preparation: Install the winch in the control room at the top of the elevator shaft, with the lifting base sleeved outside the reference guide rail, and the first moving seat and the second moving seat respectively located on the first side and the second side of the combined guide rail;

[0011] S2, the control box controls the winch to control the lifting base to travel all the reference guide rails at least once, during which the first grinding actuator and the second grinding actuator are not in contact with the combined guide rails, and the first special-shaped detection device and the second special-shaped detection device are working, and the control box obtains the first protrusion detection data through the first special-shaped detection device and obtains the second protrusion detection data through the second special-shaped detection device;

[0012] S3, the control box controls the first linear drive device of the first grinding actuator to control the first distance between the output end of the first grinding actuator and the first side surface of the combined guide rail through the first protrusion detection data; the control box controls the second linear drive device of the second grinding actuator to control the second distance between the output end of the second grinding actuator and the second side surface of the combined guide rail through the second protrusion detection data;

[0013] S4, the control box controls the first grinding actuator and the second grinding actuator to perform the grinding operation, and at the same time controls the winch to move the first grinding actuator and the second grinding actuator to various locations of the combined guide rail.

[0014] Preferably, in step S1, a suspension frame is installed in a control room at the top of the elevator shaft, a first suspension rope on the suspension frame is located beside a first side of the combined guide rail, and a second suspension rope of the suspension frame is located beside a second side of the combined guide rail.

[0015] Preferably, in step S2, the first special-shaped detection device and the second special-shaped detection device obtain the first bulge detection data and the second bulge detection data in the following working steps:

[0016] S21, the first special-shaped detection device and the second special-shaped detection device respectively take photos of the first side surface and the second side surface of the combined guide rail;

[0017] S22, the first special-shaped detection device transmits the photo data of the first side surface to the control box through the first image processing chip, and the second special-shaped detection device transmits the photo data of the second side surface to the control box through the second image processing chip;

[0018] S23, the control box obtains first bulge detection data by analyzing the photo data at the first side, and obtains second bulge detection data by analyzing the photo data at the second side.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the present application, firstly, the reference guide rail that has been built is used, and the reference guide rail is located in the vertical direction, so that the lifting base can be fully guided to rise and fall in the vertical direction, and the lifting base is prevented from deviating itself when it rises and falls in the vertical direction, which affects the detection results of the subsequent first special-shaped detection device and the second special-shaped detection device, thereby ensuring the accuracy of the detection results. Then, the entire lifting base can be raised and lowered by using a winch, so that the first grinding actuator and the second grinding actuator can move to various parts of the combined guide rail, and grind the adjacent parts of each guide rail section to eliminate the first protrusion or the second protrusion at the adjacent parts of the guide rail section (that is, the unconventional protrusion at the adjacent two guide rail sections). Based on the detection results of the first special-shaped detection device and the second special-shaped detection device, the first linear drive device and the second linear drive device are controlled to control the distance from the first grinding actuator to the first side surface of the combined guide rail, control the distance from the second grinding actuator to the second side surface of the combined guide rail, and control the grinding cutting depth of the first protrusion and the second protrusion, thereby reducing the concave and convex at the two guide rail sections and improving the accuracy of the two guide rail sections in the combined guide rail.

[0021] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the two guide rail sections in the assembled guide rail.

[0023] Figure 2 It is a schematic diagram of the structure of the assembly guide rail and the reference guide rail.

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0025] Figure numerals: combined guide rail 1, guide rail section 110, reference guide rail 2, lifting base 3, first linear drive device 4, first movable seat 5, first grinding actuator 6, second linear drive device 7, second movable seat 8, second grinding actuator 9, first special-shaped detection device 10, second special-shaped detection device 11, first suspension rope 121, second suspension rope 122. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0027] like Figure 2 as well as Figure 3As shown, the present invention discloses an automatic grinding and straightening system for elevator guide rails, comprising: a hoist (not shown in the figure), a reference guide rail 2, a lifting base 3, a first linear drive device 4, a first moving seat 5, a first grinding actuator 6, a second linear drive device 7, a second moving seat 8, a second grinding actuator 9, a first special-shaped detection device 10, a second special-shaped detection device 11 and a control box (not shown in the figure), a reference guide rail 2 and a combined guide rail 1 are installed in the elevator shaft, the combined guide rail 1 is located next to the reference guide rail 2, and a lifting actuator is installed on the reference guide rail 2. The lifting base 3 can be lifted and lowered under the guidance of the reference guide rail 2. The lifting base 3 is connected to the output end of the hoist. The hoist is installed in the control room at the top of the elevator shaft. The hoist is used to drive the lifting base 3 to lift. A first linear drive device 4 and a second linear drive device 7 are installed on the lifting base 3. A first moving seat 5 and a second moving seat 8 that can move closer to or away from each other are installed on the lifting base 3. The output end of the first linear drive device 4 is connected to the first moving seat 5, and the output end of the second linear drive device 7 is connected to the second moving seat 8. A first grinding actuator 6 is installed on the moving seat 5, and the first grinding actuator 6 is used to grind the first side of the combined guide rail 1. A second grinding actuator 9 is installed on the second moving seat 8, and the second grinding actuator 9 is used to grind the second side of the combined guide rail 1; a first special-shaped detection device 10 is installed on the first moving seat 5, and the first special-shaped detection device 10 is used to detect the first protrusion detection data of the first side of the combined guide rail 1 relative to the vertical direction; a second special-shaped detection device 11 is installed on the second moving seat 8, and the second special-shaped detection device 11 is used to detect the second protrusion detection data of the second side of the combined guide rail 1 relative to the vertical direction; the output end of the first special-shaped detection device 10 is connected to the first input end of the control box, and the first output end of the control box is connected to the first linear drive device 4, and the control box is used to control the operation of the first linear drive device 4 according to the first protrusion detection data; the output end of the second special-shaped detection device 11 is connected to the second input end of the control box, and the second output end of the control box is connected to the second linear drive device 7, and the control box is used to control the operation of the second linear drive device 7 according to the second protrusion detection data.

[0028] A suspension frame is installed in the control room at the top of the elevator shaft, and a first pendant is suspended on the suspension frame by a first suspension rope 121, and the first suspension rope 121 is located next to the first side surface of the combined guide rail 1. The first special-shaped detection device 10 is used to detect the first protrusion detection data of the first side surface of the combined guide rail 1 relative to the vertical direction by detecting the relative position of the first suspension rope 121 and the first side surface of the combined guide rail 1; a second pendant is suspended on the suspension frame by a second suspension rope 122, and the second suspension rope 122 is located next to the second side surface of the combined guide rail 1, and the second special-shaped detection device 11 is used to detect the protrusion detection data of the second side surface of the combined guide rail 1 relative to the vertical direction by detecting the relative position of the second suspension rope 122 and the second side surface of the combined guide rail 1. After the lifting base 3 is installed, the relative position of the lifting base 3 and the output end of the first grinding actuator 6 may change, which may cause errors in judging the operation in the vertical direction based on the lifting base 3. Therefore, in the present application, the naturally hanging first suspension rope 121 provides a vertical direction reference for the first side through the suspension frame, the first suspension rope 121 and the first vertical body, and the naturally hanging second suspension rope 122 provides a vertical direction reference for the second side through the suspension frame, the second suspension rope 122 and the second vertical body, which is convenient for subsequent detection of whether there is a first protrusion on the first side and also convenient for detection of the second protrusion on the second side.

[0029] The first special-shaped detection device 10 and the second special-shaped detection device 11 are both cameras, and the control box includes: a first image processing chip, a second image processing chip, a control chip, a first motor driving chip and a second motor driving chip. The output end of the camera is connected to the input end of the first image processing chip or the input end of the second image processing chip, and the output end of the first image processing chip and the output end of the second image processing chip are respectively connected to the first input end and the second input end of the control chip, and the first output end of the control chip is connected to the input end of the first motor driving chip. The first motor driving chip controls the operation of the first linear driving device 4, and the first and second output ends of the control chip are connected to the input end of the second motor driving chip, and the second motor driving chip controls the operation of the second linear driving device 7. The first image processing chip and the second image processing chip process the first side photo and the second side photo respectively, so that the processed photo data is convenient for the control chip to recognize.

[0030] The steps for straightening the combined guide rail 1 using the elevator guide rail automatic grinding and straightening system are as follows:

[0031] S1. Preparation: Install the winch in the control room at the top of the elevator shaft, and at the same time, the lifting base 3 is sleeved outside the reference guide rail 2, and the first moving seat 5 and the second moving seat 8 are respectively located on the first side and the second side of the combined guide rail 1;

[0032] S2, the control box controls the winch to control the lifting base 3 to travel all the reference guide rails 2 at least once, during which the first grinding actuator 6 and the second grinding actuator 9 are not in contact with the combined guide rail 1, and the first special-shaped detection device 10 and the second special-shaped detection device 11 are working, and the control box obtains the first protrusion detection data through the first special-shaped detection device 10 and obtains the second protrusion detection data through the second special-shaped detection device 11;

[0033] S3, the control box controls the first linear drive device 4 that drives the first grinding actuator 6 through the first protrusion detection data, and controls the first distance between the output end of the first grinding actuator 6 and the first side surface of the combined guide rail 1; the control box controls the second linear drive device 7 that drives the second grinding actuator 9 through the second protrusion detection data, and controls the second distance between the output end of the second grinding actuator 9 and the second side surface of the combined guide rail 1;

[0034] S4, the control box controls the first grinding actuator 6 and the second grinding actuator 9 to perform the grinding operation, and at the same time controls the winch to move the first grinding actuator 6 and the second grinding actuator 9 to various places of the combined guide rail 1. In this step, since step S2 is in the state of detecting the combined guide rail 1, if it is performed together with the grinding work at this time, it is easy to affect the detection work due to the grinding vibration. When the vibration is large during grinding, the first special-shaped detection device 10 and the second special-shaped detection device 11 will randomly and irregularly vibrate, which will affect the detection result. Therefore, steps S2 and S3 are set separately to avoid the low grinding operation accuracy caused by the influence of the detection result.

[0035] In step S1, a suspension frame needs to be installed in the control room at the top of the elevator shaft, the first suspension rope 121 on the suspension frame is located next to the first side of the combined guide rail 1, and the second suspension rope 122 of the suspension frame is located next to the second side of the combined guide rail 1.

[0036] In step S2, the first special-shaped detection device 10 and the second special-shaped detection device 11 obtain the first bulge detection data and the second bulge detection data in the following working steps:

[0037] S21, the first special-shaped detection device 10 and the second special-shaped detection device 11 respectively take photos of the first side surface and the second side surface of the combined guide rail 1;

[0038] S22, the first special-shaped detection device 10 transmits the photo data at the first side surface to the control box through the first image processing chip, and the second special-shaped detection device 11 transmits the photo data at the second side surface to the control box through the second image processing chip;

[0039] S23, the control box obtains the first protrusion detection data by analyzing the photo data at the first side, and obtains the second protrusion detection data by analyzing the photo data at the second side. The photo data at the first side includes the first suspension rope 121 data and the first side edge data. The first side edge data can be used to determine the position of the first protrusion on the first side (that is, the first protrusion detection data) to facilitate grinding off the first protrusion. The second suspension rope 122 data is compared with the first side data except the first protrusion detection data to determine the verticality of the first side. When the first side deviates too much from the vertical direction, it can be determined that the installation of this combined guide rail 1 is not compliant, and it is recommended to rework and redo it to ensure the installation quality. Of course, the way the photo data at the second side is processed to obtain the second protrusion detection data is the same as the way the photo data at the first side is used to obtain the first protrusion detection data.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. Elevator guide rail automatic grinding and straightening system, characterized by: include: A winch, a reference guide rail, a lifting base, a first linear drive device, a first moving seat, a first grinding actuator, a second linear drive device, a second moving seat, a second grinding actuator, a first special-shaped detection device, a second special-shaped detection device and a control box, A reference guide rail and a combined guide rail are installed in the elevator shaft. The combined guide rail is located next to the reference guide rail. A lifting base is installed on the reference guide rail. The lifting base can be lifted and lowered under the guidance of the reference guide rail. The lifting base is connected to the output end of the hoist. The hoist is installed in the control room at the top of the elevator shaft. The hoist is used to drive the lifting base to lift and lower. A first linear drive device and a second linear drive device are installed on the lifting base, a first movable seat and a second movable seat that can move closer to or farther from each other are installed on the lifting base, an output end of the first linear drive device is connected to the first movable seat, an output end of the second linear drive device is connected to the second movable seat, a first grinding actuator is installed on the first movable seat, the first grinding actuator is used to grind the first side surface of the combined guide rail, and a second grinding actuator is installed on the second movable seat, the second grinding actuator is used to grind the second side surface of the combined guide rail; A first special-shaped detection device is installed on the first movable seat, and the first special-shaped detection device is used to detect first protrusion detection data of the first side surface of the combined guide rail relative to the vertical direction. A second special-shaped detection device is installed on the second movable seat, and the second special-shaped detection device is used to detect second protrusion detection data of the second side surface of the combined guide rail relative to the vertical direction. The output end of the first special-shaped detection device is connected to the first input end of the control box, the first output end of the control box is connected to the first linear drive device, and the control box is used to control the operation of the first linear drive device according to the first bulge detection data; The output end of the second special-shaped detection device is connected to the second input end of the control box, and the second output end of the control box is connected to the second linear drive device. The control box is used to control the operation of the second linear drive device according to the second protrusion detection data.

2. The elevator guide rail automatic grinding and straightening system according to claim 1 is characterized in that: A suspension frame is installed in the control room at the top of the elevator shaft, a first pendant is suspended on the suspension frame through a first suspension rope, the first suspension rope is located beside the first side surface of the combined guide rail, and the first special-shaped detection device is used to detect the first protrusion detection data of the first side surface of the combined guide rail relative to the vertical direction by detecting the relative position between the first suspension rope and the first side surface of the combined guide rail; A second pendant is suspended on the suspension frame by a second suspension rope, and the second suspension rope is located next to the second side surface of the combined guide rail. The second special-shaped detection device is used to detect the protrusion detection data of the second side surface of the combined guide rail relative to the vertical direction by detecting the relative position of the second suspension rope and the second side surface of the combined guide rail.

3. The elevator guide rail automatic grinding and straightening system according to claim 2 is characterized in that: The first special-shaped detection device and the second special-shaped detection device are both cameras, and the control box includes: a first image processing chip, a second image processing chip, a control chip, a first motor driving chip and a second motor driving chip. The output end of the camera is connected to the input end of the first image processing chip or the input end of the second image processing chip, the output end of the first image processing chip and the output end of the second image processing chip are respectively connected to the first input end and the second input end of the control chip, the first output end of the control chip is connected to the input end of the first motor driving chip, the first motor driving chip controls the operation of the first linear driving device, the first and second output ends of the control chip are connected to the input end of the second motor driving chip, and the second motor driving chip controls the operation of the second linear driving device.

4. The elevator guide rail automatic grinding and straightening system according to claim 3 is characterized in that: The steps of straightening the combined guide rails using the elevator guide rail automatic grinding and straightening system are as follows: S1. Preparation: Install the winch in the control room at the top of the elevator shaft, with the lifting base sleeved outside the reference guide rail, and the first moving seat and the second moving seat respectively located on the first side and the second side of the combined guide rail; S2, the control box controls the winch to control the lifting base to travel all the reference guide rails at least once, during which the first grinding actuator and the second grinding actuator are not in contact with the combined guide rails, and the first special-shaped detection device and the second special-shaped detection device are working, and the control box obtains the first protrusion detection data through the first special-shaped detection device and obtains the second protrusion detection data through the second special-shaped detection device; S3, the control box controls the first linear drive device of the first grinding actuator to control the first distance between the output end of the first grinding actuator and the first side surface of the combined guide rail through the first protrusion detection data; the control box controls the second linear drive device of the second grinding actuator to control the second distance between the output end of the second grinding actuator and the second side surface of the combined guide rail through the second protrusion detection data; S4, the control box controls the first grinding actuator and the second grinding actuator to perform the grinding operation, and at the same time controls the winch to move the first grinding actuator and the second grinding actuator to various locations of the combined guide rail.

5. The elevator guide rail automatic grinding and straightening system according to claim 4, characterized in that: In step S1, a suspension frame needs to be installed in a control room at the top of the elevator shaft, a first suspension rope on the suspension frame is located beside a first side of the combined guide rail, and a second suspension rope of the suspension frame is located beside a second side of the combined guide rail.

6. The automatic grinding and straightening system for elevator guide rails according to claim 5, characterized in that: In step S2, the first special-shaped detection device and the second special-shaped detection device obtain the first bulge detection data and the second bulge detection data in the following working steps: S21, the first special-shaped detection device and the second special-shaped detection device respectively take photos of the first side surface and the second side surface of the combined guide rail; S22, the first special-shaped detection device transmits the photo data at the first side surface to the control box through the first image processing chip, and the second special-shaped detection device transmits the photo data at the second side surface to the control box through the second image processing chip; S23, the control box obtains first bulge detection data by analyzing the photo data at the first side, and obtains second bulge detection data by analyzing the photo data at the second side.

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