JPWO2020049683A1 - Elevator guide rail processing equipment and guide rail processing method - Google Patents

Abstract

The guide rail processing device of the elevator has a processing device main body and a measuring device. The processing apparatus main body has a processing tool for scraping at least a part of the guide rail. Further, the processing apparatus main body is moved along the guide rail. The measuring device is moved along the guide rail together with the processing device main body. Further, the measuring device measures at least one of the thickness and the surface roughness of the guide rail.

Description

The present invention relates to an elevator guide rail processing apparatus and a guide rail processing method for scraping at least a part of a guide rail with a processing tool.

In the conventional guide rail processing apparatus, the grinding belt is held by the processing head. Further, the machining head is moved so that the load current value of the motor that drives the grinding belt becomes a set value (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2005-224877

In the renewal work of the conventional elevator, the existing car may be replaced with the new car. In this case, the existing emergency stop device mounted on the existing car is also replaced with the new emergency stop device. Further, the guide surface of the existing guide rail may be worn due to long-term contact with the guide device mounted on the existing car, and the friction coefficient with respect to the emergency stop device may be small. Therefore, when replacing the existing car with the new car, the existing guide rail is also replaced with the new guide rail.

However, in this case, it takes time and effort to transport the existing guide rail and the newly installed guide rail, and the construction period becomes long. Also, the cost is high.

On the other hand, the conventional guide rail processing device as described above is a device for the purpose of keeping the grinding amount constant in the finishing process at the time of manufacturing the guide rail. Therefore, with the conventional processing apparatus, it is difficult to perform processing according to the actual state of the guide rail.

The present invention has been made to solve the above-mentioned problems, and provides an elevator guide rail processing device and a guide rail processing method that can more easily perform processing according to an actual guide rail condition. The purpose is to get.

The guide rail processing device of the elevator according to the present invention has a processing tool for scraping at least a part of the guide rail, and is moved along the guide rail along the guide rail together with the processing device main body and the processing device main body. It is moved and is equipped with a measuring device that measures at least one of the thickness and surface roughness of the guide rail.
Further, in the guide rail processing method for an elevator according to the present invention, a processing device main body having a processing tool for scraping at least a part of the guide rail and a measuring device are suspended in a hoistway and attached to the guide rail. A hanging process for setting and a moving process for moving the processing device main body and the measuring device along the guide rail are provided. The moving process includes a processing process for processing the guide rail with a processing tool and a measuring device. It includes a measuring step of measuring at least one of the thickness and surface roughness of the guide rail.

According to the guide rail processing device and the guide rail processing method of the elevator of the present invention, processing according to the actual state of the guide rail can be performed more easily.

It is a block diagram which shows the elevator by Embodiment 1 of this invention. It is sectional drawing of the car guide rail along the line II-II of FIG. It is a perspective view which shows the detailed structure of the processing apparatus main body of FIG. It is a perspective view which looked at the processing apparatus main body of FIG. 3 from the angle different from FIG. It is a perspective view which looked at the processing apparatus main body of FIG. 3 from the angle different from FIG. 3 and FIG. It is a perspective view which saw the processing apparatus main body of FIG. 3 from the angle different from FIG. 3-5. It is a perspective view which shows the state which set the processing apparatus main body of FIG. 3 on a car guide rail. It is a perspective view which shows the state which set the processing apparatus main body of FIG. 4 on a car guide rail. It is a perspective view which shows the state which set the processing apparatus main body of FIG. 5 on a car guide rail. It is sectional drawing which shows the contact state between the processing tool of FIG. 7 and a car guide ray. FIG. 6 is a cross-sectional view showing a contact state between the first guide roller, the second guide roller, the first pressing roller, and the second pressing roller of FIG. 7 and the car guide rail. It is a block diagram which shows the measuring apparatus of FIG. It is a perspective view which shows an example of the structure of the detection part of FIG. It is a perspective view which shows the state which the detection part of FIG. 13 is attached to a car guide rail. It is a flowchart which shows the guide rail processing method of Embodiment 1. FIG. It is a block diagram which shows typically the state of step S5 of FIG. It is a block diagram which shows typically the state of step S6 of FIG. It is a block diagram which shows typically the state of step S8 of FIG. It is a flowchart which shows the guide rail processing method of Embodiment 2. It is a block diagram which shows the 1st modification of the measuring apparatus of FIG. It is a block diagram which shows the 2nd modification of the measuring apparatus of FIG. It is explanatory drawing which shows the 1st combination example of the moving direction of a guide rail processing apparatus, and the position of the measuring apparatus with respect to the processing apparatus main body. It is explanatory drawing which shows the 2nd combination example of the moving direction of a guide rail processing apparatus, and the position of the measuring apparatus with respect to the processing apparatus main body. It is explanatory drawing which shows the 3rd combination example of the moving direction of a guide rail processing apparatus, and the position of the measuring apparatus with respect to the processing apparatus main body. It is explanatory drawing which shows the 4th combination example of the moving direction of a guide rail processing apparatus, and the position of the measuring apparatus with respect to the processing apparatus main body. It is a block diagram which shows the modification which reduced the number of the guide roller and the pressing roller of FIG. FIG. 6 is a configuration diagram showing a modified example in which the guide portion is sandwiched between the processing tool and the pressing roller of FIG. 26. It is a block diagram which shows the modification which omitted the pressing roller of FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1.
FIG. 1 is a configuration diagram showing an elevator according to the first embodiment of the present invention, and shows a state during renewal work. In FIG. 1, a pair of car guide rails 2 are installed in the hoistway 1. Each car guide rail 2 is configured by joining a plurality of rail members in the vertical direction. Further, each car guide rail 2 is fixed to the hoistway wall via a plurality of rail brackets 9.

The car 3 which is an elevating body is arranged between the pair of car guide rails 2. Further, the car 3 moves up and down in the hoistway 1 along the car guide rail 2.

The first end of the suspension body 4 is connected to the upper part of the car 3. As the suspension body 4, a plurality of ropes or a plurality of belts are used. A counterweight (not shown) is connected to the second end of the suspension body 4. The car 3 and the balance weight are suspended in the hoistway 1 by the suspension body 4.

The intermediate portion of the suspension body 4 is wound around a drive sheave of a hoist (not shown). The car 3 and the balance weight move up and down in the hoistway 1 by rotating the drive sheave. A pair of balanced weight guide rails (not shown) are installed in the hoistway 1. The balanced weight moves up and down in the hoistway 1 along the balanced weight guide rail.

An emergency stop device 5 is mounted on the lower part of the car 3. The emergency stop device 5 makes an emergency stop of the car 3 by gripping the pair of car guide rails 2.

Guide devices 6 in contact with the car guide rail 2 are attached to both ends in the width direction of the upper part of the car 3 and both ends in the width direction of the lower part of the car 3. As each guide device 6, a sliding guide shoe or a roller guide device is used.

Below the car 3, a processing device main body 7 for processing the car guide rail 2 is provided. Although the processing apparatus main body 7 is shown as a simple box in FIG. 1, a detailed configuration will be described later.

The processing apparatus main body 7 is suspended from the lower part of the car 3 into the hoistway 1 via the suspension member 8. As the hanging member 8, a flexible string-shaped member such as a rope, a wire or a belt is used.

The car 3 is located above the processing device main body 7, and moves the processing device main body 7 along the car guide rail 2.

A measuring device 52 is connected to the lower part of the processing device main body 7 via a connecting member 51. The measuring device 52 is movably connected to the processing device main body 7 together with the processing device main body 7 along the car guide rail 2. That is, the measuring device 52 is moved along the car guide rail 2 by moving the processing device main body 7 along the car guide rail 2. Further, the measuring device 52 measures the thickness of the car guide rail 2.

The guide rail processing device 100 includes a processing device main body 7, a hanging member 8, a connecting member 51, and a measuring device 52. Further, the guide rail processing device 100 is used when processing the car guide rail 2 installed in the hoistway 1, and is removed during normal operation of the elevator.

FIG. 2 is a cross-sectional view of the car guide rail 2 along the line II-II of FIG. The car guide rail 2 has a bracket fixing portion 2a and a guide portion 2b. The bracket fixing portion 2a is a portion fixed to the rail bracket 9. The guide portion 2b projects at a right angle from the center of the bracket fixing portion 2a in the width direction toward the car 3 side to guide the raising and lowering of the car 3. Further, the guide portion 2b is gripped by the emergency stop device 5 when the car 3 is in an emergency stop.

Further, the guide portion 2b has a pair of braking surfaces 2c facing each other and a tip surface 2d. The tip surface 2d is an end surface of the guide portion 2b on the side opposite to the bracket fixing portion 2a, that is, on the car 3 side. The pair of braking surfaces 2c and the tip surface 2d function as guide surfaces in contact with the guide device 6 when the car 3 is raised and lowered. Further, the pair of braking surfaces 2c are surfaces that the emergency stop device 5 comes into contact with when the car 3 is in an emergency stop.

The measuring device 52 of FIG. 1 measures the thickness of the guide portion 2b as the thickness of the car guide rail 2.

<Structure of processing equipment body>
FIG. 3 is a perspective view showing a detailed configuration of the processing apparatus main body 7 of FIG. FIG. 4 is a perspective view of the processing apparatus main body 7 of FIG. 3 as viewed from an angle different from that of FIG. FIG. 5 is a perspective view of the processing apparatus main body 7 of FIG. 3 as viewed from an angle different from that of FIGS. 3 and 4. FIG. 6 is a perspective view of the processing apparatus main body 7 of FIG. 3 as viewed from an angle different from that of FIGS. 3 to 5.

The processing device main body 7 includes a frame 11, a connecting tool 12, a processing tool 13, a processing tool driving device 14, a first guide roller 15, a second guide roller 16, a first pressing roller 17, and a second pressing roller 18. , A first tip surface roller 19, and a second tip surface roller 20.

The frame 11 has a frame main body 21 and a frame divided body 22. The connector 12, the processing tool 13, the processing tool driving device 14, the first guide roller 15, the second guide roller 16, the first tip surface roller 19, and the second tip surface roller 20 are attached to the frame body 21. It is provided.

The first pressing roller 17 and the second pressing roller 18 are provided on the frame dividing body 22.

The connector 12 is provided at the upper end of the frame body 21. A hanging member 8 is connected to the connector 12.

The processing tool driving device 14 is arranged on the side opposite to the processing tool 13 of the frame main body 21. Further, the processing tool driving device 14 rotates the processing tool 13. As the processing tool driving device 14, for example, an electric motor is used.

The processing tool 13 processes the braking surface 2c. A grindstone is used as the processing tool 13. As the grindstone, a cylindrical flat grindstone in which a large number of abrasive grains are provided on the outer peripheral surface is used. Further, a cutting tool or the like may be used as the processing tool 13.

By rotating the tool 13 with the outer peripheral surface of the tool 13 in contact with the braking surface 2c, at least a part, that is, a part or the entire surface of the braking surface 2c can be scraped off. Thereby, for example, the surface roughness of the braking surface 2c can be made rough, and the friction coefficient of the braking surface 2c with respect to the emergency stop device 5 can be made a more appropriate value.

The frame body 21 is provided with a cover (not shown). When the braking surface 2c is processed by the processing tool 13, processing chips are generated. The cover prevents the processing waste from being scattered around the processing apparatus main body 7.

The first guide roller 15 and the second guide roller 16 are provided on the frame main body 21 along with the processing tool 13. With the frame 11 suspended by the suspending member 8, the first guide roller 15 is arranged above the processing tool 13, and the second guide roller 16 is arranged below the processing tool 13. The processing tool 13 is arranged between the first guide roller 15 and the second guide roller 16.

The first guide roller 15 and the second guide roller 16 come into contact with the braking surface 2c together with the machining tool 13, so that the outer peripheral surface of the machining tool 13 comes into contact with the braking surface 2c in parallel. That is, the outer peripheral surface of the processing tool 13 is evenly contacted with the braking surface 2c in the entire width direction of the processing tool 13.

The two line segments that are the contact portions of the guide rollers 15 and 16 with the braking surface 2c and the one line segment that is the contact portion of the braking surface 2c of the processing tool 13 can exist in one plane. Is set to.

The first pressing roller 17 sandwiches the guide portion 2b between the first pressing roller 17 and the first guide roller 15. The second pressing roller 18 sandwiches the guide portion 2b between the second pressing roller 18 and the second guide roller 16. That is, when the processing tool 13, the first guide roller 15, and the second guide roller 16 come into contact with the braking surface 2c on the side to be processed, the first pressing roller 17 and the second pressing roller 18 Is in contact with the braking surface 2c on the opposite side.

The rotation axes of the processing tool 13 and the rollers 15, 16, 17, and 18 are parallel or substantially parallel to each other, and are horizontal or substantially horizontal when the car guide rail 2 is processed.

The first tip surface roller 19 is provided at the upper end portion of the frame main body 21. The second tip surface roller 20 is provided at the lower end of the frame main body 21. That is, the first and second tip surface rollers 19 and 20 are arranged at intervals in the vertical direction.

The frame dividing body 22 can be linearly moved with respect to the frame main body 21 between the sandwiching position and the releasing position. The sandwiching position is a position where the guide portion 2b is sandwiched between the guide rollers 15 and 16 and the pressing rollers 17 and 18. The release position is a position where the pressing rollers 17 and 18 are separated from the guide rollers 15 and 16 than the sandwiching position.

The frame body 21 is provided with a pair of rod-shaped frame guides 23. The frame guide 23 guides the movement of the frame dividing body 22 with respect to the frame main body 21. Further, the frame guide 23 penetrates the frame dividing body 22.

A pair of rod fixing portions 24 are provided at the upper and lower ends of the frame body 21. The frame split body 22 is provided with a pair of facing portions 25 facing the rod fixing portion 24. A frame spring rod 26 is fixed to each rod fixing portion 24. Each frame spring rod 26 penetrates the facing portion 25.

A frame spring receiver 27 is attached to the frame spring rod 26. A frame spring 28 is provided between the frame spring receiver 27 and the facing portion 25, respectively. Each frame spring 28 generates a force for moving the frame dividing body 22 to the sandwiching position.

The pressing force of the pressing rollers 17 and 18 by the frame spring 28 overcomes the force that the processing apparatus main body 7 tends to tilt due to the eccentricity of the center of gravity of the processing apparatus main body 7, and the outer peripheral surfaces and braking surfaces 2c of the guide rollers 15 and 16 It is set to a size that can maintain parallelism with.

Further, the pressing force of the pressing rollers 17 and 18 by the frame spring 28 is applied to the outer peripheral surfaces of the guide rollers 15 and 16 even when the processing apparatus main body 7 is moved along the car guide rail 2 while rotating the processing tool 13. The size is set so that the parallel with the braking surface 2c can be maintained.

A release position holding mechanism (not shown) is provided between the frame main body 21 and the frame split body 22. The release position holding mechanism holds the frame split body 22 in the release position against the spring force of the frame spring 28.

The machining tool 13 and the machining tool driving device 14 can be linearly moved with respect to the frame body 21 between the machining position and the separation position. The machining position is a position where the machining tool 13 is in contact with the braking surface 2c while the guide rollers 15 and 16 are in contact with the braking surface 2c. The separation position is a position where the machining tool 13 is separated from the braking surface 2c while the guide rollers 15 and 16 are in contact with the braking surface 2c.

As described above, the pressing rollers 17 and 18 can move in the direction perpendicular to the braking surface 2c. Further, the processing tool 13 and the processing tool driving device 14 are also movable in a direction perpendicular to the braking surface 2c.

As shown in FIG. 4, the processing tool driving device 14 is attached to a flat plate-shaped movable support member 29. A pair of rod-shaped drive device guides 30 are fixed to the frame body 21. The movable support member 29 is slidable along the drive device guide 30. As a result, the processing tool 13 and the processing tool driving device 14 can be linearly moved with respect to the frame main body 21.

A processing tool spring 31 is provided between the movable support member 29 and the frame body 21. The machining tool spring 31 generates a force for moving the machining tool 13 and the machining tool driving device 14 toward the machining position side. The pressing force of the machining tool 13 by the machining tool spring 31 is set to a size that does not cause problems such as chattering.

A separation position holding mechanism (not shown) is provided between the frame body 21 and the movable support member 29. The separation position holding mechanism holds the processing tool 13 and the processing tool driving device 14 at the separation position against the spring force of the processing tool spring 31.

Note that FIG. 7 is a perspective view showing a state in which the processing apparatus main body 7 of FIG. 3 is set on the car guide rail 2. FIG. 8 is a perspective view showing a state in which the processing apparatus main body 7 of FIG. 4 is set on the car guide rail 2. FIG. 9 is a perspective view showing a state in which the processing apparatus main body 7 of FIG. 5 is set on the car guide rail 2.

FIG. 10 is a cross-sectional view showing a contact state between the processing tool 13 of FIG. 7 and the car guide rail 2. The width dimension of the outer peripheral surface of the processing tool 13 is larger than the width dimension of the braking surface 2c. As a result, the processing tool 13 is in contact with the entire braking surface 2c in the width direction.

FIG. 11 is a cross-sectional view showing a contact state between the first guide roller 15, the second guide roller 16, the first pressing roller 17, and the second pressing roller 18 of FIG. 7 and the car guide rail 2. is there. The outer peripheral surfaces of the first and second guide rollers 15 and 16 are cylindrical. That is, the shapes of the outer peripheral surfaces of the first and second guide rollers 15 and 16 in the cross section along the rotation center C1 of the first and second guide rollers 15 and 16 are straight lines.

The outer peripheral surfaces of the first and second pressing rollers 17 and 18 are substantially spherical. That is, the outer peripheral surfaces of the first and second pressing rollers 17 and 18 in the cross section along the rotation center C2 of the first and second pressing rollers 17 and 18 are arcuate.

<Measuring device configuration>
FIG. 12 is a block diagram showing the measuring device 52 of FIG. The measuring device 52 includes a detecting unit 53, a measuring unit 54, a storage unit 55, and a notification unit 56.

The detection unit 53 faces the braking surface 2c when measuring the thickness of the guide unit 2b. Further, the detection unit 53 outputs a detection signal for measuring the thickness of the guide unit 2b to the measurement unit 54.

The measuring unit 54 measures the thickness of the guide unit 2b based on the detection signal from the detection unit 53. Further, the measuring unit 54 compares the measured value obtained by the measurement with a preset target value, and determines whether or not the degree of processing by the processing apparatus main body 7 has reached the target degree. Further, the measuring unit 54 outputs the measured value and the determination result to the notification unit 56 as the measurement result.

The storage unit 55 stores a target value regarding the thickness of the guide unit 2b. The notification unit 56 notifies the outside of the measured value measured by the measurement unit 54 and the determination result by the measurement unit 54.

A rail thickness gauge can be used as the detection unit 53. As the measuring unit 54, a commercially available discriminator or relay meter can be used.

Further, a computer can be used as a configuration in which the measuring unit 54 and the storage unit 55 are combined. As the computer, a general personal computer can be used. In this case, the computer has a CPU (central processing unit), which is an arithmetic unit, and a hard disk drive that stores a determination program and a target value.

Further, the measuring unit 54 is connected to the detecting unit 53 via a cable or the like. As the notification unit 56, for example, a relay, a DIO (digital input / output) device, a revolving light, an alarm, a liquid crystal display, or a combination thereof can be used.

FIG. 13 is a perspective view schematically showing an example of the configuration of the detection unit 53 of FIG. Further, FIG. 14 is a perspective view showing a state in which the detection unit 53 of FIG. 13 is mounted on the car guide rail 2.

The detection unit 53 includes a thickness gauge frame 57 having a U-shaped cross section, a pair of first displacement sensors 58a and 58b, a pair of second displacement sensors 59a and 59b, and a pair of third displacement sensors 60a and 60b. And have.

The thickness gauge frame 57 has a first facing portion 57a, a second facing portion 57b, and a third facing portion 57c. The first facing portion 57a faces one braking surface 2c when measuring the thickness of the guide portion 2b. The second facing portion 57b faces the other braking surface 2c when measuring the thickness of the guide portion 2b. The third facing portion 57c faces the tip surface 2d when measuring the thickness of the guide portion 2b.

The first displacement sensor 58a, the second displacement sensor 59a, and the third displacement sensor 60a are provided on the first facing portion 57a. The first displacement sensor 58b, the second displacement sensor 59b, and the third displacement sensor 60b are provided on the second facing portion 57b.

The first displacement sensors 58a and 58b face each other. The second displacement sensors 59a and 59b face each other. The third displacement sensors 60a and 60b face each other.

The first displacement sensor 58a, the second displacement sensor 59a, and the third displacement sensor 60a are spaced apart from each other on a straight line parallel to the longitudinal direction of the car guide rail 2 when measuring the thickness of the guide portion 2b. Have been placed.

The first displacement sensor 58b, the second displacement sensor 59b, and the third displacement sensor 60b are spaced apart from each other on a straight line parallel to the longitudinal direction of the car guide rail 2 when measuring the thickness of the guide portion 2b. Have been placed.

Each displacement sensor 58a, 58b, 59a, 59b, 60a, 60b generates a signal according to the distance to the opposing braking surface 2c when measuring the thickness of the guide portion 2b. Further, as each displacement sensor 58a, 58b, 59a, 59b, 60a, 60b, a non-contact type sensor, for example, an eddy current type displacement sensor can be used.

<Processing method>
Next, FIG. 15 is a flowchart showing the guide rail processing method of the first embodiment. When processing the car guide rail 2 by the processing device main body 7, first, in step S1, a control device and a power supply (not shown) are carried into the car 3. The control device is a device that controls the processing device main body 7 and the measuring device 52. Further, in step S2, the guide rail processing device 100 is carried into the pit of the hoistway 1.

Subsequently, the car 3 is moved to the lower part of the hoistway 1, and in step S3, the hanging member 8 is connected to the car 3 to suspend the guide rail processing device 100 in the hoistway 1. Further, in step S4, the guide rail processing device 100 is connected to the control device and the power supply. Then, in steps S5 and 6, the guide rail processing device 100 is set on the car guide rail 2.

Specifically, in step S5, as shown in FIG. 16, the guide rollers 15 and 16 are held on one of the braking surfaces in a state where the machining tool 13 is held at the separated position and the frame dividing body 22 is held at the released position. Contact 2c. Further, the tip surface rollers 19 and 20 are brought into contact with the tip surface 2d.

After that, in step S6, the frame dividing body 22 is moved to the sandwiching position, and the guide portion 2b is sandwiched between the guide rollers 15 and 16 and the pressing rollers 17 and 18 as shown in FIG.

After setting the processing apparatus main body 7 on the car guide rail 2 in this way, the processing tool 13 is rotated in step S7. Then, in step S8, as shown in FIG. 18, the machining tool 13 and the machining tool driving device 14 are moved to the machining position, and the car 3 is moved to the top floor at a constant speed lower than the rated speed. That is, the processing device main body 7 is moved along the car guide rail 2 while the braking surface 2c is processed by the processing tool 13.

When the car 3 arrives at the top floor, the machining tool 13 and the machining tool driving device 14 are moved to the separated positions in step S9. Further, in step S10, the rotation of the processing tool 13 is stopped and the car 3 is stopped.

After that, in step S11, the thickness of the guide portion 2b is measured by the measuring device 52 while moving the car 3 to the lowest floor. In this example, since the braking surface 2c is processed only when the car 3 is raised, it is preferable to keep the processing tool 13 away from the braking surface 2c when the car 3 is lowered.

When the car 3 arrives at the lowest floor, in step S12, it is confirmed whether or not the thickness of the guide portion 2b has reached the target value. If the thickness of the guide portion 2b does not reach the target value, the guide portion 2b is sandwiched between the guide rollers 15 and 16 and the pressing rollers 17 and 18, and steps S7 to 12 are performed again. When the thickness of the guide portion 2b reaches the target value, the processing is completed.

When processing the braking surface 2c on the opposite side, the processing device main body 7 symmetrical to that of FIG. 3 may be used, or the processing device main body 7 of FIG. 3 may be suspended in the opposite direction. In the latter case, the connector 12 may be added to the lower end of the frame body 21 as well.

By applying the above processing method to the remaining car guide rail 2, all braking surfaces 2c can be processed. Further, it is also possible to simultaneously process two or more braking surfaces 2c by two or more processing device main bodies 7.

The guide rail processing method of the first embodiment includes a hanging step and a moving step. In the hanging step, the processing device main body 7 and the measuring device 52 are suspended in the hoistway 1 and set with respect to the car guide rail 2. Further, in the hanging step, the processing device main body 7 and the measuring device 52 are suspended from the car 3 that moves up and down along the car guide rail 2.

In the moving step, the processing device main body 7 and the measuring device 52 are moved along the car guide rail 2.

In addition, the moving process includes a processing process, a measuring process, a determination process, and a notification process. In the processing process, the car guide rail 2 is processed by the processing tool 13. In the measuring step, the thickness of the guide portion 2b is measured by the measuring device 52.

In the determination step, the measured value measured in the measurement step is compared with the target value, and it is determined whether or not the degree of processing by the processing apparatus main body 7 has reached the target degree. In the notification process, the determination result in the determination process is notified to the outside.

Further, in the processing process, the processing apparatus main body 7 is controlled based on the measured value measured in the measuring process. Examples of the method of controlling the processing device main body 7 include a method of controlling at least one of the rotation speed of the processing tool 13, the pressing force of the processing tool 13 against the braking surface 2c, and the moving speed of the processing device main body 7. Be done.

For example, the amount of processing can be increased by increasing the rotation speed of the processing tool 13. Further, the machining amount can be increased by increasing the pressing force of the machining tool 13 against the braking surface 2c. Further, the processing amount can be increased by slowing down the moving speed of the processing apparatus main body 7.

<Renewal method>
Next, the method of renewing the elevator of the first embodiment will be described. In the first embodiment, the existing car 3 and the existing emergency stop device 5 are replaced with a new car and a new emergency stop device while leaving the existing car guide rail 2. Further, the renewal method of the first embodiment includes a rail processing step and a replacement step.

In the rail processing step, at least a part of the braking surface 2c of the existing car guide rail 2 is scraped off by using the processing device main body 7 as described above. At this time, the processing apparatus main body 7 is connected to the existing car 3 via the hanging member 8, and the processing apparatus main body 7 is moved along the existing car guide rail 2 by moving the existing car 3.

After that, the replacement process is carried out. In the replacement step, the existing car 3 and the existing emergency stop device 5 are replaced with the new car and the new emergency stop device while leaving the existing car guide rail 2.

In such a guide rail processing device 100, the processing device main body 7 and the measuring device 52 are moved along the car guide rail 2, and the thickness of the guide portion 2b is measured by the measuring device 52. Therefore, processing according to the actual state of the car guide rail 2 can be performed more easily.

Further, the measuring device 52 is movably connected to the processing device main body 7 together with the processing device main body 7 along the car guide rail 2. Therefore, the machining work and the measurement work for the car guide rail 2 can be efficiently performed.

Further, the measuring unit 54 compares the measured value with the target value, and determines whether or not the degree of processing by the processing apparatus main body 7 has reached the target degree. Therefore, it is possible to smoothly determine whether or not additional processing is required.

Further, the measuring device 52 is provided with a notification unit 56 for notifying the outside of the determination result by the measuring unit 54. Therefore, it is possible to easily confirm whether or not additional processing is required outside the guide rail processing apparatus 100.

Further, in the hanging step of the guide rail processing method of the first embodiment, the processing device main body 7 and the measuring device 52 are suspended in the hoistway 1 and set with respect to the car guide rail 2. Further, in the moving step, the processing device main body 7 and the measuring device 52 are moved along the car guide rail 2. Therefore, processing according to the actual state of the car guide rail 2 can be performed more easily.

Further, in the processing process, the processing apparatus main body 7 is controlled based on the measured value measured in the measuring process. Therefore, the degree of processing by the processing apparatus main body 7 can be adjusted more appropriately.

Further, in the processing step, at least one of the rotation speed of the processing tool 13, the pressing force of the processing tool 13 against the car guide rail 2, and the moving speed of the processing apparatus main body 7 is controlled. Therefore, the degree of processing by the processing apparatus main body 7 can be adjusted more appropriately.

Further, in the determination step, the measured value measured in the measurement step is compared with the target value, and it is determined whether or not the degree of processing by the processing apparatus main body 7 has reached the target degree. Therefore, it is possible to smoothly determine whether or not additional processing is required.

Further, in the notification process, the determination result in the determination process is notified to the outside. Therefore, it is possible to easily confirm whether or not additional processing is required outside the guide rail processing apparatus 100.

Further, in the hanging step, the processing device main body 7 and the measuring device 52 are suspended from the car 3. Therefore, the machining work and the measurement work for the car guide rail 2 can be efficiently performed.

Further, in the guide rail processing device 100 and the guide rail processing method as described above, the processing device main body 7 is suspended in the hoistway 1 via the suspension member 8. Then, the processing apparatus main body 7 is moved along the car guide rail 2 while processing the braking surface 2c by the processing tool 13. Therefore, the coefficient of friction of the car guide rail 2 with respect to the emergency stop device 5 can be more optimized while the car guide rail 2 is installed in the hoistway 1.

Further, the processing apparatus main body 7 is suspended by the suspending member 8. Therefore, it is possible to prevent the vibration of the car 3 from being transmitted to the processing apparatus main body 7 during the processing of the braking surface 2c. As a result, it is possible to prevent the occurrence of processing defects and stably process the braking surface 2c.

Further, the processing device main body 7 and the measuring device 52 are suspended from the car 3. Therefore, it is not necessary to separately prepare a device for lifting the processing device main body 7. Further, the area gripped by the emergency stop device 5 of the car guide rail 2 can be efficiently processed. Further, even in an elevator having a long ascending / descending stroke, it is possible to easily process the entire length of the car guide rail 2 without using a long hanging member.

Further, the processing apparatus main body 7 is provided with guide rollers 15 and 16. Therefore, the outer peripheral surface of the machining tool 13 can be more reliably brought into contact with the braking surface 2c in parallel, and the braking surface 2c can be uniformly machined without leaving uncut portion.

Further, the guide portion 2b is sandwiched between the guide rollers 15 and 16 and the pressing rollers 17 and 18. Therefore, the outer peripheral surface of the processing tool 13 can be more stably brought into contact with the braking surface 2c in parallel. Further, even when the braking surface 2c is tilted in the vertical direction, the outer peripheral surface of the processing tool 13 and the braking surface 2c can be maintained parallel to each other.

Further, the frame body 21 is provided with a connector 12. Therefore, the processing apparatus main body 7 can be moved along the car guide rail 2 in a state where the suspension member 8 is connected to the connector 12 and suspended in the hoistway 1. As a result, the state of the car guide rail 2 with respect to the emergency stop device 5 can be made more appropriate while the car guide rail 2 is installed in the hoistway 1.

Further, the first guide roller 15 is arranged above the processing tool 13, and the second guide roller 16 is arranged below the processing tool 13. Therefore, the parallelism between the outer peripheral surface of the processing tool 13 and the braking surface 2c can be maintained more stably. As a result, even if the car guide rail 2 is tilted, bent, or wavy in the vertical direction, the outer peripheral surface of the processing tool 13 and the braking surface 2c can be maintained parallel to each other.

Further, the processing tool 13 is arranged at an intermediate position between the first and second guide rollers 15 and 16. Therefore, the moving direction of the processing tool 13 with respect to the frame main body 21 can be set to a direction perpendicular to the braking surface 2c. As a result, the force for pressing the processing tool 13 against the braking surface 2c can be stabilized. In addition, stable processing can be performed without uneven processing, that is, non-uniformity of the amount to be scraped off.

Further, the frame 11 is divided into a frame main body 21 and a frame dividing body 22. Then, the frame spring 28 generates a force for moving the frame dividing body 22 toward the sandwiching position side. Therefore, with a simple configuration, the guide portion 2b can be stably sandwiched between the guide rollers 15 and 16 and the pressing rollers 17 and 18.

Further, the machining tool 13 and the machining tool driving device 14 can be moved between the machining position and the separation position. Then, the machining tool spring 31 generates a force for moving the machining tool 13 and the machining tool driving device 14 toward the machining position side. Therefore, with a simple configuration, the machining tool 13 can be stably pressed against the braking surface 2c to perform stable machining. Further, by moving the processing tool 13 to a remote position, the processing apparatus main body 7 can be moved along the car guide rail 2 without processing the braking surface 2c.

Further, the frame main body 21 is provided with tip surface rollers 19 and 20. Therefore, the processing apparatus main body 7 can be smoothly moved along the car guide rail 2 in a stable posture.

Further, in the elevator renewal method as described above, at least a part of the braking surface 2c of the existing car guide rail 2 is scraped off. After that, the existing car 3 and the existing emergency stop device 5 are replaced with the new car and the new emergency stop device while leaving the existing car guide rail 2. Therefore, the coefficient of friction of the existing car guide rail 2 with respect to the newly installed emergency stop device can be further optimized while the car guide rail 2 is installed in the hoistway 1.

As a result, the elevator can be renewed without replacing the existing car guide rail 2. Therefore, the construction period can be significantly shortened, and the construction cost can be significantly reduced.

Further, by processing the braking surface 2c while monitoring the measured value by the measuring device 52, it is possible to prevent the occurrence of defective products due to excessive processing of the braking surface 2c. As a result, the yield can be improved and the construction cost can be reduced.

Further, since the processing device main body 7 is moved by using the existing car 3, it is possible to prevent the processing scraps and the like generated during processing from adhering to the new car and the newly installed emergency stop device 5.

Embodiment 2.
Next, the second embodiment of the present invention will be described. The measuring device 52 of the second embodiment measures the surface roughness of the braking surface 2c. Further, the configuration of the measuring device 52 of the second embodiment is the same as that of FIG.

The detection unit 53 faces the braking surface 2c when measuring the surface roughness of the braking surface 2c. Further, the detection unit 53 outputs a detection signal for measuring the surface roughness of the guide unit 2b to the measurement unit 54.

The measuring unit 54 measures the surface roughness of the braking surface 2c based on the detection signal from the detecting unit 53. The storage unit 55 stores a target value regarding the surface roughness of the braking surface 2c.

A surface roughness meter can be used as the detection unit 53. Further, as the surface roughness meter, for example, an optical surface roughness detector can be used. Other configurations are the same as those in the first embodiment.

FIG. 19 is a flowchart showing the guide rail processing method of the second embodiment. In the second embodiment, in step S21, the surface roughness of the braking surface 2c is measured by the measuring device 52 while moving the car 3 to the lowest floor. Then, when the car 3 arrives at the lowest floor, it is confirmed in step S22 whether or not the surface roughness of the braking surface 2c has reached the target value. The other guide rail processing method and renewal method are the same as those in the first embodiment.

In such a guide rail processing device 100 and a guide rail processing method, the processing device main body 7 and the measuring device 52 are moved along the car guide rail 2, and the surface roughness of the braking surface 2c is measured by the measuring device 52. Therefore, processing according to the actual state of the car guide rail 2 can be performed more easily. Moreover, the same effect as that of the first embodiment can be obtained.

Note that FIG. 20 is a block diagram showing a first modification of the measuring device 52 of FIG. In the first modification, the storage unit 55 is omitted. In this case, the operator may determine whether or not the degree of processing by the processing apparatus main body 7 has reached the target value.

According to such a first modification, the configuration of the measuring device 52 can be simplified. Further, the first modification shown in FIG. 20 can be applied to both the first and second embodiments.

Further, FIG. 21 is a block diagram showing a second modification of the measuring device 52 of FIG. The measuring unit 54 of the second modification calculates the correction value based on the measured value and the target value. The correction value is a value that corrects a control parameter for controlling at least one of the rotation speed of the processing tool 13, the pressing force of the processing tool 13 against the car guide rail 2, and the moving speed of the processing device main body 7. is there.

The correction value calculated by the measuring unit 54 is output from the notification unit 56 to the communication target. As a result, the measuring device 52 corrects the control parameter. The notification unit 56 includes a communication device that communicates with the communication target.

When the correction value includes a value for correcting at least one of the control parameters of the rotation speed and the pressing force, the communication target is the control device that controls the processing apparatus main body 7. When the correction value includes a value for correcting the movement speed control parameter, the communication target is an elevator control device that controls the movement speed of the car 3.

According to such a second modification, the control parameters can be changed automatically, and the work efficiency can be improved. Further, the second modification shown in FIG. 21 can be applied to both the first and second embodiments.

When adjusting the surface roughness of the braking surface 2c, for example, in a region where the measured value of the surface roughness is smaller than the target value, the surface roughness can be increased by lowering the rotation speed of the machining tool 13. it can. Further, the surface roughness can be increased by increasing the pressing force of the processing tool 13 against the braking surface 2c. Further, by increasing the moving speed of the processing apparatus main body 7, the surface roughness of the braking surface 2c can be increased.

Further, in the first and second embodiments, the number of sensors provided in the detection unit 53 is not particularly limited. For example, the cost can be reduced by reducing the number of sensors.

Further, in the first and second embodiments, the braking surface 2c is processed while raising the processing device main body 7, and the measuring device 52 is used for measurement while lowering the measuring device 52. On the other hand, the braking surface 2c may be machined while lowering the processing device main body 7, and the measuring device 52 may perform measurement while raising the measuring device 52.

Further, the combination of the moving direction of the processing device main body 7 at the time of processing, the moving direction of the measuring device 52 at the time of measurement, and the position of the measuring device 52 with respect to the processing device main body 7 is not limited to the above example.

FIG. 22 is an explanatory diagram showing a first combination example of the moving direction of the guide rail processing device 100 and the position of the measuring device 52 with respect to the processing device main body 7. Further, FIG. 23 is an explanatory diagram showing an example of a second combination of the moving direction of the guide rail processing device 100 and the position of the measuring device 52 with respect to the processing device main body 7.

In the first combination example, the guide rail processing device 100 is raised, and the measuring device 52 is arranged on the processing device main body 7. Further, in the first combination example, processing and measurement are performed when the guide rail processing device 100 is raised.

In the second combination example, the guide rail processing device 100 is lowered, and the measuring device 52 is arranged below the processing device main body 7. Further, in the second combination example, processing and measurement are performed when the guide rail processing device 100 is lowered.

As described above, in the first and second combination examples, the measuring device 52 is arranged in front of the processing device main body 7 in the moving direction of the processing device main body 7 when the moving step is performed.

As a result, the braking surface 2c can be processed while measuring the thickness of the guide portion 2b immediately before processing or the surface roughness of the braking surface 2c. Further, when the control parameter is corrected by the correction value as in the second modification shown in FIG. 21, the braking surface 2c can be processed while automatically correcting the control parameter.

FIG. 24 is an explanatory diagram showing a third combination example of the moving direction of the guide rail processing device 100 and the position of the measuring device 52 with respect to the processing device main body 7. Further, FIG. 25 is an explanatory diagram showing a fourth combination example of the moving direction of the guide rail processing device 100 and the position of the measuring device 52 with respect to the processing device main body 7.

In the third combination example, the guide rail processing device 100 is raised, and the measuring device 52 is arranged below the processing device main body 7. Further, in the third combination example, processing and measurement are performed when the guide rail processing device 100 is raised.

In the fourth combination example, the guide rail processing device 100 is lowered, and the measuring device 52 is arranged on the processing device main body 7. Further, in the fourth combination example, processing and measurement are performed when the guide rail processing device 100 is lowered.

As described above, in the third and fourth combination examples, the measuring device 52 is arranged behind the processing device main body 7 in the moving direction when the moving step is performed.

This makes it possible to measure the thickness of the guide portion 2b immediately after processing or the surface roughness of the braking surface 2c while processing the braking surface 2c. Further, when the control parameter is corrected by the correction value as in the second modification shown in FIG. 21, the braking surface 2c may be processed while the control parameter is automatically corrected at the next processing. it can.

Further, the number of guide rollers may be one or three or more. Along with this, the number of pressing rollers may be one or three or more. For example, as shown in FIG. 26, the guide portion 2b may be sandwiched between one guide roller 15 and one pressing roller 17.

Further, the guide roller and the pressing roller may be omitted as long as the machining tool can be stably and parallel to the braking surface. For example, FIG. 27 shows a configuration in which the guide portion 2b is sandwiched between the processing tool 13 and the pressing roller 17. Even with such a configuration, the machining tool 13 can be applied parallel to the braking surface 2c.

Further, FIG. 28 shows a configuration in which the frame dividing body and the pressing roller are omitted, and the frame body 21 is pressed toward the guide portion 2b by a pair of frame body springs 33. Even with such a configuration, the machining tool 13 can be applied parallel to the braking surface 2c.

Further, both the thickness of the guide rail and the surface roughness of the braking surface may be measured by the measuring device.

Further, a vibrometer for detecting the vibration of the processing apparatus main body may be provided in the guide rail processing apparatus, and the guide rail may be processed while measuring the vibration of the processing apparatus main body. Then, when the vibration of the processing apparatus main body exceeds the threshold value, the processing may be interrupted. As a result, it is possible to suppress the disorder of the machined surface caused by the abnormal vibration, and it is possible to suppress the occurrence of defective products. Therefore, the yield can be improved and the construction cost can be reduced.

Further, the rotation axis of the processing tool and the rotation axis of the guide roller do not necessarily have to be parallel.

Further, in the above example, the force for pressing the processing tool and the pressing roller against the braking surface is generated by the spring, but it may be generated by, for example, a pneumatic cylinder, a hydraulic cylinder, or an electric actuator.

Further, the connector may be integrally formed with the frame.

Further, in the above example, the processing apparatus main body is hung from the existing car, but it may be hung from the new car.

Further, in the above example, the processing apparatus main body is suspended from the car, but the processing apparatus main body may be suspended from a lifting device such as a winch installed at the upper part of the hoistway or in the car.

Further, in the above example, the measuring device is connected to the processing device main body, but the measuring device may be separated from the processing device main body. In this case, the measuring device may be moved independently of the processing device main body by, for example, a lifting device.

Further, in the above example, the case where the elevating body is a car and the processing target is a car guide rail is shown. However, the present invention can also be applied when the elevating body is a balanced weight and the processing target is a balanced weight guide rail. In this case, the processing apparatus main body may be suspended from the counterweight.

Further, in the above example, the guide rail was processed during the renewal work. However, the present invention can also be applied to, for example, when it is desired to adjust the surface roughness of the braking surface in a newly installed elevator, or when it is desired to refresh the braking surface during maintenance of an existing elevator.

Further, the present invention can be applied to various types of elevators such as an elevator having a machine room, a machine roomless elevator, a double deck elevator, and a one-shaft multicar type elevator. The one-shaft multicar system is a system in which the upper car and the lower car placed directly under the upper car independently move up and down a common hoistway.

1 hoistway, 2 car guide rail, 3 car (elevating body), 7 processing device main body, 13 processing tool, 52 measuring device, 56 notification unit, 100 guide rail processing device.

Claims (12)

It has a processing tool that scrapes at least a part of the guide rail, and is moved along the guide rail together with the processing device main body that is moved along the guide rail and the processing device main body, and the thickness of the guide rail. And an elevator guide rail processing device provided with a measuring device for measuring at least one of the surface roughness. The guide rail processing device for an elevator according to claim 1, wherein the measuring device is connected to the processing device main body so as to be movable along the guide rail together with the processing device main body. The first or second aspect of the present invention, wherein the measuring device compares the measured value obtained by the measurement with the target value, and determines whether or not the degree of processing by the processing device main body has reached the target degree. Elevator guide rail processing equipment. The guide rail processing device for an elevator according to claim 3, wherein the measuring device has a notification unit for notifying the determination result to the outside. The measuring device is at least one of the rotation speed of the machining tool, the pressing force of the machining tool against the guide rail, and the moving speed of the machining device main body based on the measured value and the target value. The guide rail processing apparatus for an elevator according to claim 3 or 4, wherein the control parameter for controlling the speed is corrected. A processing device main body having a processing tool for scraping at least a part of the guide rail and a measuring device are suspended in the hoistway and set on the guide rail, and the processing device main body. A moving step of moving the measuring device and the measuring device along the guide rail is provided.
The moving step is
The processing process of processing the guide rail with the processing tool and
A method for processing an elevator guide rail, which comprises a measuring step of measuring at least one of the thickness and the surface roughness of the guide rail by the measuring device. The guide rail processing method for an elevator according to claim 6, wherein in the processing step, the processing apparatus main body is controlled based on the measured value measured in the measuring step. The guide rail of the elevator according to claim 7, wherein in the processing step, at least one of the rotation speed of the processing tool, the pressing force of the processing tool against the guide rail, and the moving speed of the processing apparatus main body is controlled. Processing method. Claims 6 to 8 include a determination step of comparing the measured value measured in the measurement step with the target value and determining whether or not the degree of processing by the processing apparatus main body has reached the target degree. The guide rail processing method for an elevator according to any one of the above items. The elevator guide rail according to any one of claims 6 to 9, wherein in the hanging step, the processing device main body and the measuring device are suspended from an elevating body that moves up and down along the guide rail. Processing method. The elevator guide rail processing according to any one of claims 6 to 10, wherein in the moving step, the measuring device is arranged in front of the processing device main body in the moving direction of the processing device main body. Method. The elevator guide rail processing according to any one of claims 6 to 10, wherein in the moving step, the measuring device is arranged behind the processing device main body in the moving direction of the processing device main body. Method.

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