CN112654574B - Guide rail processing device and guide rail processing method - Google Patents

Abstract

In the guide rail machining device, a machining device main body includes a frame, a machining tool support member, a spindle, a machining tool, and a machining tool driving device. The spindle is rotatably provided to the machining tool support member. The machining tool is disposed on the spindle for cutting at least a portion of the guide rail. The working tool driving device rotates the working tool. An assembly including a processing tool support member, a spindle, and a processing tool is detachable from the frame in an assembled state.

Description

Guide rail processing device and guide rail processing method

Technical Field

The present invention relates to a guide rail machining apparatus and a guide rail machining method for machining a guide rail with a rotating machining tool.

Background

In a conventional rail grinding device, a rotatable cutter is provided in a bed. The machine base can move forward and backward along the track. The cutter has a plurality of grinding edges for grinding the raceway (see, for example, patent document 1).

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 2726398

Disclosure of Invention

Problems to be solved by the invention

In the above-described conventional grinding apparatus, when the rail is machined over a long distance, the grinding blade is worn and the grinding efficiency is lowered, and therefore, the grinding blade needs to be replaced in the middle. In this case, since the grinding edges of the cutter must be replaced individually, the positional relationship between the grinding edges is shifted, and the coaxiality of the plurality of grinding edges with respect to the rotation center of the cutter is likely to change.

If the coaxiality changes, the strength of contact between the grinding edge and the rail differs for each grinding edge, and the amount of machining of the rail becomes uneven. In addition, the machining amount of the rail is not uniform before and after the grinding edge is replaced.

In contrast, when the position of the grinding edge is adjusted at the machining site when the grinding edge is replaced, a lot of time is required for the adjustment work.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a guide rail machining apparatus and a guide rail machining method that can easily replace a machining tool and can stably machine a guide rail.

Means for solving the problems

The guide rail processing device of the present invention includes a processing device main body, and the processing device main body includes: a frame; a processing tool support member provided to the frame; a spindle rotatably provided to the machining tool support member; a machining tool provided to the spindle for cutting at least a part of the guide rail; and a processing tool driving device which rotates the processing tool, wherein the processing device main body moves along the guide rail, and the assembly body comprising the processing tool supporting component, the main shaft and the processing tool can be assembled and disassembled relative to the frame under the assembled state.

Further, the guide rail processing method of the present invention includes: a machining step of machining the guide rail by a machining tool while moving a machining device main body along the guide rail, the machining device main body including: a frame; a processing tool support member provided to the frame; a spindle rotatably provided on the machining tool support member; a machining tool provided to the spindle for cutting at least a part of the guide rail; and a machining tool driving device which rotates the machining tool; and a replacement step of replacing the assembled body including the machining tool support member, the spindle, and the machining tool with a new assembled body having the same structure as the assembled body in a state where the assembled body is assembled.

Effects of the invention

According to the guide rail processing apparatus and the guide rail processing method of the present invention, the processing tool can be easily replaced, and the processing can be stably performed on the guide rail.

Drawings

Fig. 1 is a configuration diagram showing an elevator according to embodiment 1 of the present invention.

Fig. 2 is a cross-sectional view of the car guide rail along the line II-II of fig. 1.

Fig. 3 is a perspective view showing a detailed structure of the processing apparatus main body of fig. 1.

Fig. 4 is a perspective view of the processing apparatus main body of fig. 3 viewed from a different angle from fig. 3.

Fig. 5 is a perspective view of the processing apparatus main body of fig. 3 viewed from a different angle from that of fig. 3 and 4.

Fig. 6 is a perspective view of the processing device body of fig. 3, viewed from a different angle from fig. 3 to 5.

Fig. 7 is a perspective view showing a state in which the machining device main body of fig. 3 is provided on a car guide rail.

Fig. 8 is a perspective view showing a state in which the machining device main body of fig. 4 is provided on a car guide rail.

Fig. 9 is a perspective view showing a state in which the machining device main body of fig. 5 is installed on a car guide rail.

Fig. 10 is a key part sectional view of the processing device body of fig. 3.

Fig. 11 is a sectional view showing a contact state of the processing tool of fig. 7 with the car guide rail.

Fig. 12 is a cross-sectional view illustrating a contact state of the 1 st guide roller, the 2 nd guide roller, the 1 st pressing roller, and the 2 nd pressing roller of fig. 7 with the car guide rail.

Fig. 13 is a flowchart illustrating a guide rail processing method according to embodiment 1.

Fig. 14 is a structural diagram schematically illustrating a state of step S6 of fig. 13.

Fig. 15 is a structural diagram schematically illustrating a state of step S7 of fig. 13.

Fig. 16 is a structural diagram schematically showing a state of step S9 of fig. 13.

Fig. 17 is a sectional view showing a case where a pair of braking surfaces of fig. 12 are not parallel to each other.

Fig. 18 is a cross-sectional view showing a comparative example in which the outer peripheral surfaces of the 1 st and 2 nd pressing rollers of fig. 17 are formed in a cylindrical shape.

Fig. 19 is a perspective view showing a machining device main body of a guide rail machining device according to embodiment 2 of the present invention.

Fig. 20 is a sectional view of a key portion of the processing device main body of fig. 19.

Detailed Description

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 embodiment 1 of the present invention, and shows a state during a renovation construction. In fig. 1, a hoistway 1 is provided with a pair of car guide rails 2. Each car guide rail 2 is configured by joining a plurality of guide rail members in the vertical direction. Each car guide rail 2 is fixed to the hoistway wall by a plurality of rail brackets 9.

A car 3 as a lifting body is disposed between the pair of car guide rails 2. The car 3 is raised and lowered in the hoistway 1 along the car guide rails 2.

The 1 st end of the suspension 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 2 nd end of the suspension body 4. The car 3 and the counterweight are suspended in the hoistway 1 by a suspension body 4.

The intermediate portion of the suspension body 4 is wound around a drive sheave of a hoisting machine, not shown. The car 3 and the counterweight are raised and lowered in the hoistway 1 by rotating the drive sheave. A pair of counterweight guide rails, not shown, is provided in the hoistway 1. The counterweight is raised and lowered in the hoistway 1 along the counterweight guide rails.

An emergency stop device 5 is mounted on a lower portion of the car 3. The safety device 5 grips the pair of car guide rails 2 to bring the car 3 to a safety stop.

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

A machining device body 7 that machines the car guide rail 2 is provided below the car 3. In fig. 1, the processing apparatus main body 7 is shown as a box only, and the detailed configuration will be described later.

The processing device main body 7 is suspended from the lower portion of the car 3 in the hoistway 1 via a suspension member 8. As the suspension member 8, a flexible rope-like member, such as a rope, a wire, or a belt, is used.

The car 3 is positioned above the machining device body 7, and the machining device body 7 is moved along the car guide rail 2.

The guide rail processing apparatus 100 includes a processing apparatus main body 7 and a suspension member 8. The guide rail machining device 100 is a device used when machining the car guide rail 2 installed in the hoistway 1, and is removed during normal operation.

Fig. 2 is a cross-sectional view of the car guide rail 2 along the line II-II of fig. 1. The car guide rail 2 has a bracket fixing portion 2a and a guide portion 2 b. The bracket fixing portion 2a is a portion fixed to the rail bracket 9. The guide portion 2b protrudes vertically from the width direction center of the bracket fixing portion 2a toward the car 3 side, and guides the car 3 to ascend and descend. The guide portion 2b is held by the safety device 5 when the car 3 is stopped in an emergency.

The guide portion 2b has a distal end surface 2d and a pair of braking surfaces 2c facing each other. The distal end surface 2d is an end surface of the guide portion 2b on the opposite side to the bracket fixing portion 2a, i.e., on the car 3 side. The pair of braking surfaces 2c and the distal end surface 2d function as guide surfaces that come into contact with the guide device 6 when the car 3 moves up and down. The pair of braking surfaces 2c are surfaces that come into contact with the safety device 5 when the car 3 stops suddenly.

Fig. 3 is a perspective view showing a detailed structure of the processing apparatus main body 7 of fig. 1. Fig. 4 is a perspective view of the processing apparatus main body 7 of fig. 3 viewed from a different angle from that of fig. 3. Fig. 5 is a perspective view of the processing apparatus main body 7 of fig. 3 viewed from a different angle from that of fig. 3 and 4. Fig. 6 is a perspective view of the processing device body 7 of fig. 3 viewed from a different angle from fig. 3 to 5.

The processing apparatus main body 7 has a frame 11, a connecting member 12, a processing tool 13, a processing tool driving device 14, a 1 st guide roller 15, a 2 nd guide roller 16, a 1 st press roller 17, a 2 nd press roller 18, a 1 st end face roller 19, and a 2 nd end face roller 20.

The frame 11 has a frame main body 21 and a frame split body 22. The link 12, the machining tool 13, the machining tool drive device 14, the 1 st guide roller 15, the 2 nd guide roller 16, the 1 st end face roller 19, and the 2 nd end face roller 20 are provided in the frame body 21.

The 1 st press roller 17 and the 2 nd press roller 18 are provided in the frame split body 22.

The connector 12 is provided at an upper end portion of the frame body 21. The suspension member 8 is connected to the connection member 12.

The machining tool driving device 14 is disposed on the opposite side of the frame body 21 from the machining tool 13. Further, the working tool driving device 14 rotates the working tool 13. As the working tool driving device 14, for example, an electric motor is used.

The machining tool 13 machines the braking surface 2 c. As the machining tool 13, for example, a grindstone is used. As the grindstone, a cylindrical flat grindstone having a plurality of abrasive grains provided on an outer peripheral surface thereof is used. As the machining tool 13, a cutting tool or the like may be used.

By rotating the machining tool 13 with the outer peripheral surface of the machining 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 shaved off. This makes it possible to increase the surface roughness of the braking surface 2c, for example, and to set the friction coefficient of the braking surface 2c with respect to the emergency stop device 5 to a more appropriate value.

A cover, not shown, is provided to the frame body 21. When the braking surface 2c is machined by the machining tool 13, machining chips are generated. The cover prevents the processing chips from scattering around the processing device main body 7.

The 1 st guide roller 15 and the 2 nd guide roller 16 are provided in the frame body 21 in parallel with the machining tool 13. In a state where the frame 11 is suspended by the suspension member 8, the 1 st guide roller 15 is disposed above the machining tool 13, and the 2 nd guide roller 16 is disposed below the machining tool 13. The processing tool 13 is disposed between the 1 st guide roller 15 and the 2 nd guide roller 16.

The 1 st guide roller 15 and the 2 nd guide roller 16 contact the braking surface 2c together with the machining tool 13, thereby bringing the outer peripheral surface of the machining tool 13 into parallel contact with the braking surface 2 c. That is, the outer peripheral surface of the machining tool 13 is uniformly brought into contact with the braking surface 2c over the entire width of the machining tool 13.

Two line segments as contact portions of the guide rollers 15 and 16 with the braking surface 2c and one line segment as a contact portion of the machining tool 13 with the braking surface 2c are set so as to be able to exist in one plane.

The 1 st press roller 17 sandwiches the guide portion 2b with the 1 st guide roller 15. The 2 nd press roller 18 sandwiches the guide portion 2b with the 2 nd guide roller 16. That is, when the machining tool 13, the 1 st guide roller 15, and the 2 nd guide roller 16 contact the braking surface 2c on the side to be machined, the 1 st pressure roller 17 and the 2 nd pressure roller 18 contact the braking surface 2c on the opposite side.

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

The 1 st end surface roller 19 is provided at an upper end portion of the frame body 21. The 2 nd end surface roller 20 is provided at the lower end portion of the frame body 21. That is, the 1 st and 2 nd end surface rollers 19 and 20 are disposed at a distance from each other in the vertical direction.

The frame split body 22 is linearly movable between the clamping position and the releasing position with respect to the frame main body 21. The nip position is a position where the guide portion 2b is nipped between the guide rollers 15, 16 and the press rollers 17, 18. The release position is a position where the press rollers 17, 18 are distant from the guide rollers 15, 16 as compared with the nip 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 split body 22 relative to the frame main body 21. Further, the frame guide 23 penetrates the frame split body 22.

A pair of rod fixing portions 24 are provided on the surface of the frame body 21 facing the frame split body 22. A frame spring bar 26 is fixed to each bar fixing portion 24. Each frame spring rod 26 penetrates the frame segment 22.

A pair of 1 st frame spring seats 25 are provided on a surface of the frame split body 22 on the opposite side to the frame main body 21. Each frame spring rod 26 penetrates the corresponding 1 st frame spring seat 25.

A 2 nd frame spring seat 27 is mounted to the end of each frame spring rod 26. A frame spring 28 is provided between each 1 st frame spring seat 25 and the corresponding 2 nd frame spring seat 27. Each frame spring 28 generates a force to move the frame split body 22 to the clamping position.

The pressing force of the frame spring 28 to the pressing rollers 17, 18 is set to the following magnitude: the force exceeding the force that the machining device main body 7 tries to tilt due to the eccentricity of the center of gravity position of the machining device main body 7 can maintain the outer peripheral surfaces of the guide rollers 15 and 16 parallel to the braking surface 2 c.

Further, the pressing force of the frame spring 28 to the pressing rollers 17, 18 is set to the following magnitude: even when the processing device main body 7 is moved along the car guide rail 2 while rotating the processing tool 13, the outer peripheral surfaces of the guide rollers 15 and 16 can be maintained parallel to the braking surface 2 c.

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 at the release position against the spring force of the frame spring 28.

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

As described above, the pressure rollers 17, 18 are movable in the direction perpendicular to the braking surface 2 c. The machining tool 13 and the machining tool driving device 14 are also movable in a direction perpendicular to the braking surface 2 c.

As shown in fig. 4 and 5, the machining tool drive device 14 is fixed to a flat plate-shaped drive device support member 29 as a machining tool support member. The drive device support member 29 is detachably attached to the movable support member 30 by four fastening bolts 31.

The number of fastening bolts 31 is not limited to four. However, the number of the fastening bolts 31 is preferably two or more in order to fix the drive device supporting member 29 and the movable supporting member 30 so as not to be rotatable with respect to each other.

A pair of rod-shaped drive unit guides 32 are fixed to the frame body 21. The movable supporting member 30 is slidable along the driving device guide 32. Thereby, the machining tool 13 and the machining tool driving device 14 can linearly move with respect to the frame body 21.

A working tool spring 33 is provided between the movable supporting member 30 and the frame main body 21. The machining tool spring 33 generates a force for moving the machining tool 13 and the machining tool driving device 14 to the machining position side. The pressing force of the machining tool spring 33 against the machining tool 13 is set to a magnitude that does not cause troubles such as chatter.

A spacing position holding mechanism, not shown, is provided between the frame body 21 and the movable supporting member 30. The isolation position holding mechanism holds the machining tool 13 and the machining tool driving device 14 at the isolation position against the spring force of the machining tool spring 33.

Fig. 7 is a perspective view showing a state in which the machining device body 7 of fig. 3 is installed on the car guide rail 2. Fig. 8 is a perspective view showing a state in which the machining device main body 7 of fig. 4 is installed on the car guide rail 2. Fig. 9 is a perspective view showing a state in which the machining device main body 7 of fig. 5 is provided on the car guide rail 2.

Fig. 10 is a key portion sectional view of the processing device main body 7 of fig. 3, showing a section along the center line of the processing tool 13. The machining tool driving device 14 includes a driving device main body 14a and a driving shaft 14b as a main shaft. The driving device body 14a rotates the driving shaft 14 b. That is, the drive shaft 14b is a rotation shaft of the machining tool drive device 14. The distal end portion of the drive shaft 14b protrudes from the drive device main body 14 a.

The machining tool 13 is mechanically fixed to the distal end portion of the drive shaft 14b by a fastener. As the fastener, for example, a friction fastener which fastens the working tool 13 to the drive shaft 14b in a keyless manner is used.

The frame body 21 is provided with a 1 st hole 21 a. The movable supporting member 30 is provided with a 2 nd hole 30a continuously from the 1 st hole. The 1 st hole 21a and the 2 nd hole 30a are formed in a size and a shape along the axial direction of the machining tool 13 so that the machining tool 13 can pass through them.

The shape of the 1 st and 2 nd holes 21a and 30a may be any of a circle, a quadrangle, and other polygons, for example. For example, when the shape of the 1 st and 2 nd holes 21a and 30a is rectangular, the shorter side may be equal to or larger than the diameter of the machining tool 13. In the case where the shape of the 1 st and 2 nd holes 21a and 30a is circular, the diameter of the 1 st and 2 nd holes 21a and 30a may be larger than the diameter of the machining tool 13.

Further, the shape of the 1 st hole 21a and the shape of the 2 nd hole 30a may be different from each other. For example, the shape of the 1 st hole 21a may be circular, and the shape of the 2 nd hole 30a may be rectangular.

The assembly 41 according to embodiment 1 includes a working tool 13, a working tool drive device 14, and a drive device support member 29. The assembly 41 can be attached to and detached from the frame body 21 in an assembled state. That is, by removing the fastening bolt 31, the assembly 41 can be removed from the movable supporting member 30 in an integrated state. The assembly 41 can be integrally attached to the movable supporting member 30 by the fastening bolt 31.

When the assembly 41 is attached to and detached from the movable supporting member 30, the working tool 13 passes through the 1 st and 2 nd holes 21a and 30 a.

Fig. 11 is a sectional view showing a contact state of the processing tool 13 of fig. 7 with the car guide rail 2. The width of the outer peripheral surface of the machining tool 13 is larger than the width of the braking surface 2 c. Thereby, the working tool 13 is in contact with the entire width direction of the braking surface 2 c.

Fig. 12 is a cross-sectional view showing a contact state of the 1 st guide roller 15, the 2 nd guide roller 16, the 1 st pressing roller 17, and the 2 nd pressing roller 18 of fig. 7 with the car guide rail 2. The outer peripheral surfaces of the 1 st and 2 nd guide rollers 15 and 16 are cylindrical. That is, the shape of the outer peripheral surfaces of the 1 st and 2 nd guide rollers 15 and 16 in the cross section along the rotation center C1 of the 1 st and 2 nd guide rollers 15 and 16 is a straight line.

The outer peripheral surfaces of the 1 st and 2 nd press rolls 17 and 18 are spherical. That is, the shape of the outer peripheral surfaces of the 1 st and 2 nd press rolls 17 and 18 in the cross section along the rotation center C2 of the 1 st and 2 nd press rolls 17 and 18 is an arc shape.

Next, fig. 13 is a flowchart illustrating a guide rail processing method according to embodiment 1. In the steps shown in fig. 13, only the step S1 is performed at a place other than the place where the elevator is installed, and all other steps are performed at the place where the elevator is installed. Therefore, in the implementation of the steps other than step S1, the operation of the target elevator needs to be stopped.

When the car guide rail 2 is machined by the machining device main body 7, first, a plurality of assemblies 41 are assembled in step S1. When each assembly 41 is assembled, the coaxiality of the machining tool 13 and the machining tool driving device 14 is adjusted.

Specifically, the machining tool 13 is attached to the machining tool drive device 14 attached to the drive device support member 29. Thereafter, the working tool 13 is rotated by the working tool driving device 14. At this time, the runout of the machining tool 13 is measured, for example, by a dial gauge. Then, the position of the machining tool 13 is adjusted so that the runout of the machining tool 13 becomes equal to or less than a predetermined value.

The number of assemblies 41 to be prepared is proportional to the number of elevators to be processed and the lifting distance. One of the assemblies 41 is assembled in advance to the movable support member 30 of the processing apparatus main body 7 by the fastening bolt 31.

Next, the guide rail processing apparatus 100, the plurality of preliminary assemblies 41, the control device not shown, and the power supply not shown are transported to the site where the elevator is installed. The control device controls the processing device main body 7. Then, in step S2, the control device and the power supply are carried into the car 3. In step S3, the guide rail machining device 100 is carried into the pit of the hoistway 1.

Next, the car 3 is moved to the lower part of the hoistway 1, and in step S4, the suspension member 8 is connected to the car 3, and the guide rail processing apparatus 100 is suspended in the hoistway 1. In step S5, the processing apparatus main body 7 is connected to the control device and the power supply. Then, in steps S6 and S7, the machining device body 7 is mounted on the car guide rail 2.

Specifically, in step S6, as shown in fig. 14, the guide rollers 15 and 16 are brought into contact with one braking surface 2c in a state where the machining tool 13 is held at the spaced position and the frame split body 22 is held at the released position. Further, the end face rollers 19, 20 are brought into contact with the end face 2 d.

Thereafter, in step S7, the frame split body 22 is moved to the clamping position, and the guide portion 2b is clamped between the guide rollers 15 and 16 and the press rollers 17 and 18 as shown in fig. 15.

After the machining device main body 7 is thus set on the car guide rail 2, the machining tool 13 is rotated in step S8. Then, in step S9, as shown in fig. 16, the machining tool 13 and the machining tool drive device 14 are moved to the machining position, and the car 3 is moved to the uppermost floor at a fixed speed lower than the rated speed. That is, the machining device body 7 is moved along the car guide rail 2 while the braking surface 2c is machined by the machining tool 13.

When the car 3 reaches the uppermost floor, the processing tool 13 and the processing tool driving device 14 are moved to the isolation position in step S10. In step S11, the rotation of the machining tool 13 is stopped, and the car 3 is stopped.

Thereafter, in step S12, the machining amount is measured while the car 3 is moved to the lowermost floor. In this example, since the braking surface 2c is machined only when the car 3 is raised, it is preferable to separate the machining tool 13 from the braking surface 2c when the car 3 is lowered. The amount of machining is measured by, for example, measuring the thickness of the guide portion 2b or measuring the surface roughness of the braking surface 2 c.

When the car 3 reaches the lowermost floor, it is checked in step S13 whether the machining amount has reached a predetermined value. When the machining amount is sufficient, the machining is finished.

If the machining amount is insufficient, the worn state of the machining tool 13 is checked in step S14. If the wear of the machining tool 13 is not increased, the guide 2b is sandwiched between the guide rollers 15 and 16 and the press rollers 17 and 18, and steps S8 to 13 are performed again.

If the wear of the machining tool 13 increases and the machining efficiency is expected to decrease, the machining tool 13 is replaced in step S15. At this time, the original assembly 41 is replaced with a new assembly 41 having the same structure in the assembled state, instead of replacing only the machining tool 13.

Specifically, the fastening bolt 31 is removed, whereby the existing assembly 41 is removed from the processing apparatus main body 7 in an integrated state. At this time, the original assembly 41 is removed from the machining tool driving device 14 side of the machining tool 13 side and the machining tool driving device 14 side of the machining device main body 7. Thereafter, the new assembly 41 prepared in step S1 is attached to the processing apparatus main body 7 and fixed by the fastening bolt 31.

After the assembly 41 is replaced, the guide portion 2b is sandwiched between the guide rollers 15 and 16 and the press rollers 17 and 18, and steps S8 to 13 are performed again. Then, in step S13, if the machining amount is sufficient, the machining is finished.

When the braking surface 2c on the opposite side is machined, the machining device body 7 symmetrical to the left and right in fig. 3 may be used, or the machining device body 7 in fig. 3 may be suspended upside down. In the latter case, the connecting member 12 may be added to the lower end of the frame body 21.

By applying the above-described processing method to the remaining car guide rails 2 as well, all the braking surfaces 2c can be processed. Further, the braking surface 2c having 2 or more surfaces can be simultaneously processed by 2 or more processing device bodies 7.

The guide rail processing method according to embodiment 1 includes a suspending step, a processing step, and a replacing step. In the suspension step, the processing device main body 7 is suspended in the hoistway 1 and is mounted on the car guide rail 2. In the suspension step, the machining device body 7 is suspended from the car 3 that moves up and down along the car guide rail 2.

In the machining step, the machining tool 13 machines the car guide rail 2 while moving the machining device body 7 along the car guide rail 2. In the replacement step, the assembled body 41 is replaced with a new assembled body 41 in the assembled state.

Next, a method of updating an elevator according to embodiment 1 will be described. In embodiment 1, the existing car guide rails 2 are left and the existing car 3 and the existing safety device 5 are replaced with a new car and a new safety device. The updating method according to embodiment 1 includes a rail machining step and a replacing step.

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

After that, a replacement process is performed. In the replacement step, the existing car guide rails 2 are left, and the existing car 3 and the existing safety device 5 are replaced with a new car and a new safety device.

In the guide rail processing apparatus 100 as described above, the assembly 41 can be attached to and detached from the frame body 21 in an assembled state. Therefore, the coaxiality of the machining tool 13 with respect to the machining tool drive device 14 can be adjusted outside the installation site of the elevator. In addition, the coaxiality can be easily reproduced when the machining tool 13 is replaced, and uniform machining accuracy can be ensured over the entire machining section. That is, the machining tool 13 can be easily replaced, and the machining of the car guide rail 2 can be stably performed.

In addition, the operation time at the installation site of the elevator can be shortened, and the stop period of the elevator can be shortened.

The assembly 41 according to embodiment 1 includes a working tool 13, a working tool drive device 14, and a drive device support member 29. Therefore, the structure of the processing apparatus main body 7 is simplified, and maintainability is improved.

The frame body 21 is provided with a 1 st hole 21a through which the machining tool 13 can pass. Further, the movable supporting member 30 is provided with a 2 nd hole 30a through which the processing tool 13 can pass, continuously to the 1 st hole 21 a. Therefore, the assembly 41 can be easily attached to and detached from the frame body 21 in an integrated state with a simple configuration.

In the guide rail processing method according to embodiment 1, the assembled body 41 is replaced with a new assembled body 41 in the assembled state. Therefore, the machining tool 13 can be easily replaced, and the machining of the car guide rail 2 can be stably performed.

Here, in the conventional elevator renewal construction, the existing car may be replaced with a newly installed car. In this case, the existing emergency stop device mounted on the existing car is also replaced with a new emergency stop device. Further, the guide surface of the conventional car guide rail may be worn due to long-term contact with the guide device mounted on the conventional car, and the friction coefficient with respect to the emergency stop device may be reduced. Therefore, when the existing car is replaced with a new car, the existing car guide rails are also replaced with the new car guide rails.

However, in this case, it takes time and effort to transport the existing guide rails and the newly installed guide rails, and the construction period becomes long. In addition, the cost is also increased.

In contrast, in the guide rail machining apparatus 100 and the guide rail machining method described above, the machining apparatus main body 7 is suspended in the hoistway 1 via the suspension member 8. Then, the machining device body 7 is moved along the car guide rail 2 while the braking surface 2c is machined by the machining tool 13. Therefore, when the car guide rail 2 is installed in the hoistway 1, the friction coefficient of the car guide rail 2 with respect to the safety device 5 can be further optimized.

Further, the braking surface 2c can be uniformly formed over substantially the entire length of the car guide rail 2.

The processing apparatus main body 7 is suspended by a suspension member 8. Therefore, during the machining of the braking surface 2c, the vibration of the car 3 can be prevented from being transmitted to the machining apparatus main body 7. This prevents occurrence of a machining defect, and can stably machine the braking surface 2 c.

The machining device main body 7 is 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 region of the car guide rail 2 gripped by the safety device 5 can be efficiently machined. Further, even in an elevator having a long elevator stroke, the machining can be easily performed over substantially the entire length of the car guide rail 2 without using a long suspending member.

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 brought into contact with the braking surface 2c more reliably in parallel, and the braking surface 2c can be machined uniformly without generating cutting residue.

The guide portion 2b is sandwiched between the guide rollers 15 and 16 and the press rollers 17 and 18. Therefore, the outer peripheral surface of the machining tool 13 can be brought into contact with the braking surface 2c more stably in parallel. Even when the braking surface 2c is inclined in the vertical direction, the outer peripheral surface of the machining tool 13 can be maintained parallel to the braking surface 2 c.

Further, the frame body 21 is provided with a connector 12. Therefore, the machining device body 7 can be moved along the car guide rail 2 in a state in which the suspension member 8 is connected to the coupling 12 and suspended in the hoistway 1. This makes it possible to set the state of the car guide rail 2 to a more appropriate state with respect to the safety device 5 when the car guide rail 2 is installed in the hoistway 1.

Further, a 1 st guide roller 15 is disposed above the machining tool 13, and a 2 nd guide roller 16 is disposed below the machining tool 13. Therefore, the outer peripheral surface of the machining tool 13 can be maintained more stably in parallel with the braking surface 2 c. Thus, even when the car guide rail 2 is inclined, curved, or undulated in the vertical direction, the outer peripheral surface of the machining tool 13 can be maintained parallel to the braking surface 2 c.

The machining tool 13 is disposed at an intermediate position between the 1 st and 2 nd guide rollers 15 and 16. Therefore, the moving direction of the machining tool 13 relative to the frame body 21 can be set to a direction perpendicular to the braking surface 2 c. This stabilizes the force with which the working tool 13 is pressed against the braking surface 2 c. Further, machining unevenness, that is, unevenness in the amount of cutting does not occur, and stable machining can be performed.

The frame 11 is divided into a frame body 21 and a frame divided body 22. The frame spring 28 generates a force to move the frame split body 22 to the clamping position side. Therefore, the guide portion 2b can be stably sandwiched between the guide rollers 15 and 16 and the press rollers 17 and 18 with a simple configuration.

The machining tool 13 and the machining tool drive device 14 are movable between a machining position and an isolation position. The machining tool spring 33 generates a force for moving the machining tool 13 and the machining tool driving device 14 to the machining position side. Therefore, with a simple configuration, the machining tool 13 can be stably pressed against the braking surface 2c, and stable machining can be performed. Further, by moving the machining tool 13 to the isolation position, the machining device main body 7 can be moved along the car guide rail 2 without machining the braking surface 2 c.

Further, end face rollers 19, 20 are provided on the frame body 21. Therefore, the machining device body 7 can be smoothly moved along the car guide rail 2 in a stable posture.

The guide rollers 15 and 16 have cylindrical outer peripheral surfaces, and the press rollers 17 and 18 have circular-arc outer peripheral surfaces in cross-sectional shapes. Thereby, the outer peripheral surfaces of the guide rollers 15, 16 are automatically adjusted to be parallel to the braking surface 2 c.

For example, as shown in fig. 17, even when the braking surface 2c on the machining side and the braking surface 2c on the opposite side are not parallel to each other, the outer peripheral surface of the machining tool 13 and the braking surface 2c on the machining side can be maintained more reliably in parallel.

On the other hand, as shown in fig. 18, when the outer peripheral surfaces of the press rolls 17 and 18 are formed in a cylindrical shape, the outer peripheral surfaces of the press rolls 17 and 18 are parallel to the opposite braking surface 2 c. Thereby, the outer peripheral surfaces of the guide rollers 15 and 16 are inclined with respect to the braking surface 2c on the machining side, and the machining tool 13 may also be inclined with respect to the braking surface 2 c. However, the outer peripheral surfaces of the press rollers 17, 18 may be cylindrical as long as the pair of braking surfaces 2c are parallel to each other.

In the above-described elevator renewal method, at least a part of the braking surface 2c of the existing car guide rail 2 is shaved. Thereafter, the existing car guide rails 2 are retained, and the existing car 3 and the existing safety device 5 are replaced with a new car and a new safety device. Therefore, when the car guide rails 2 are installed in the hoistway 1, the friction coefficient of the existing car guide rails 2 with respect to the newly installed safety device can be further optimized.

Thus, the elevator can be renewed without replacing the existing car guide rail 2. Therefore, the construction period can be greatly shortened, and the construction cost can be greatly reduced.

Further, since the processing device main body 7 is moved by the original car 3, it is possible to prevent the adhesion of processing chips and the like generated during processing to the newly installed car and the newly installed safety device 5.

Embodiment 2.

Next, fig. 19 is a perspective view showing the machining device main body 7 of the guide rail machining device according to embodiment 2 of the present invention. Further, fig. 20 is a key portion sectional view of the processing device main body 7 of fig. 19, showing a section along the center line of the processing tool 13.

The drive unit support member 29 according to embodiment 2 is fixed to the movable support member 30 via a plurality of, here, four support columns 34. Thereby, the drive device supporting member 29 faces the movable supporting member 30.

The plurality of bearing holding members 36 are fixed to the movable supporting member 30 by a plurality of fastening bolts 35. The bearing holding member 36 is in contact with the surface of the movable supporting member 30 opposite to the drive unit supporting member 29. The working tool support member according to embodiment 2 is a bearing holding member 36.

The bearing 37 is held by the bearing holding member 36. The main shaft 38 is held by the bearing 37. The main shaft 38 is rotatably held by the bearing holding member 36 via a bearing 37.

The machining tool 13 is mechanically fixed to the axial 1 st end of the spindle 38 by a fastener. As the fastener, for example, a friction fastener is used which fastens the working tool 13 to the spindle 38 in a keyless manner.

The axial 2 nd end of the spindle 38 is coupled to the drive shaft 14b of the machining tool drive device 14 via a cylindrical coupling 39. The coupling 39 is fixed to the main shaft 38 and the drive shaft 14b by a plurality of stopper screws 40. The rotation of the drive shaft 14b is transmitted to the spindle 38 and the machining tool 13 via the coupling 39.

Further, the main shaft 38 can be separated from the drive shaft 14b by loosening the stopper screw 40. The method of fixing the coupling 39 to the main shaft 38 and the drive shaft 14b is not limited to the method of fixing by the setscrew 40, and may be, for example, a slit type or a wedge type.

The assembly 42 according to embodiment 2 includes the machining tool 13, the bearing holding member 36, the bearing 37, and the spindle 38. The assembly 42 can be attached to and detached from the frame body 21 in an assembled state. That is, the assembly 41 can be removed from the movable supporting member 30 in an integrated state by detaching the main shaft 38 from the coupler 39 and removing the fastening bolt 35.

The assembly 42 can be integrally attached to the movable supporting member 30 by the fastening bolt 35. By fixing the assembly 42 to the movable support member 30, the spindle 38 and the machining tool 13 are arranged on the axis of the drive shaft 14 b.

The frame body 21 is provided with a receiving hole 21 b. The bearing holding member 36 is accommodated in the accommodation hole 21 b. The diameter of the receiving hole 21b is smaller than the diameter of the machining tool 13.

The movable supporting member 30 is provided with a through hole 30 b. The spindle 38 passes through the through hole 30 b. The through hole 30b has a diameter larger than that of the main shaft 38 and smaller than that of the receiving hole 21 b.

In the guide rail processing method according to embodiment 2, a plurality of assemblies 42 are assembled in step S1 in fig. 13. When the assembly 42 is replaced in step S15, the existing assembly 42 is removed from the machining tool 13 side of the machining device main body 7.

Other structures, rail processing methods, and update methods are the same as those of embodiment 1.

In the guide rail processing apparatus 100, the assembly 42 can be attached to and detached from the frame body 21 in an assembled state. Therefore, the machining tool 13 can be easily replaced, and the machining of the car guide rail 2 can be stably performed.

The position of the rotation center of the machining tool 13 in the machining device main body 7 is determined by the bearing 37. Therefore, by assembling the assembly 42 with high accuracy, the coaxiality of the working tool 13 and the working tool driving device 14 can be maintained even if the assembly 42 is replaced. This allows the machining tool drive device 14 to be left on the frame body 21 when the assembly 42 is replaced.

Therefore, the number of the machining tool driving devices 14 is only one, and the cost can be reduced. Further, when the assembly 42 is replaced, the rewiring work of the machining tool driving device 14 is not required, and the work efficiency can be improved.

Further, since the diameter of the receiving hole 21b and the diameter of the through hole 30b are smaller than the diameter of the machining tool 13, the rigidity of the frame body 21 and the movable supporting member 30 can be improved. This enables high-precision machining.

Further, the same effects as those of embodiment 1 can be obtained by the guide rail processing apparatus 100, the guide rail processing method, and the update method of embodiment 2.

Further, on the machining tool 13 side of the machining device main body 7, there are the car guide rail 2 and a wall surface or steel material to which the car guide rail 2 is fixed. Therefore, it is preferable to appropriately select the selection of which of the machining tool driving device 14 side and the machining tool 13 side of the machining device body 7 the machining tool 13 is configured to be removed from, according to the layout of the installation site of the elevator.

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

Further, the connecting member may be integrally formed with the frame.

In the above example, the processing apparatus main body is suspended from the existing car, but the processing apparatus main body may be suspended from a newly installed car.

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 hoisting apparatus such as a winch provided in the upper part of the hoistway or the car.

In the above example, the elevator is a car, and the processing object is a car guide rail. However, the present invention can also be applied to a case where the vertically movable body is a counterweight and the processing object is a counterweight guide rail. In this case, the processing apparatus main body may be suspended from a counterweight or may be suspended from a hoisting apparatus.

In the above example, the braking surface is machined while the machining device body is raised, but the braking surface may be machined while the machining device body is lowered. Further, the machining amount may be measured while the machining device main body is raised. Further, the processing and the measurement of the processing amount may be performed simultaneously.

In the above example, the car guide rail is machined during the update operation. However, the present invention can be applied also to a case where, for example, the surface roughness of the braking surface is desired to be adjusted in a newly installed elevator or a case where the braking surface is desired to be renewed when an existing elevator is maintained.

The present invention can be applied to various types of elevators such as an elevator having a machine room, an elevator without a machine room, a double-deck elevator, and an elevator of a single-hoistway multi-car system. The one-shaft multi-car system is a system in which an upper car and a lower car disposed directly below the upper car are raised and lowered independently in a common shaft.

The guide rail to be processed is not limited to the guide rail of the elevator, and may be a railway track, for example. In this case, the time required to stop the railroad can be shortened.

Description of the reference symbols

2: a car guide rail; 7: a processing device main body; 11: a frame; 13: a machining tool; 14: a machining tool drive device; 14 a: a drive device main body; 14 b: a drive shaft (main shaft); 21 a: 1, hole; 29: a drive device support member (machining tool support member); 30: a movable supporting member; 30 a: a 2 nd well; 36: a bearing holding member (machining tool supporting member); 37: a bearing; 38: a main shaft; 39: a coupler; 41. 42: assembling the body; 100: provided is a guide rail processing device.

Claims (6)

1. A guide rail processing device is provided with a processing device main body,

the processing device main body comprises: a frame; a working tool support member provided to the frame; a spindle rotatably provided to the machining tool support member; a machining tool provided to the spindle for cutting at least a part of the guide rail; and a processing tool driving device for rotating the processing tool, wherein the processing device main body moves along the guide rail,

an assembly including the machining tool support member, the spindle, and the machining tool is attachable to and detachable from the frame in an assembled state,

the machine tool driving device has a driving shaft and a driving device main body for rotating the driving shaft,

the processing apparatus main body further includes a movable support member slidable with respect to the frame.

2. The guide rail processing apparatus according to claim 1,

the main shaft is the drive shaft and,

the assembly further comprises the machining tool drive.

3. The guide rail processing apparatus according to claim 1,

the frame is provided with a 1 st hole through which the processing tool can pass,

the movable support member is provided with a 2 nd hole through which the machining tool can pass, continuously to the 1 st hole.

4. The guide rail processing apparatus according to any one of claims 1 to 3,

the processing tool support member is detachably attached to the movable support member.

5. The guide rail processing apparatus according to claim 1,

the spindle is held to the processing tool support member by a bearing,

the assembly further comprises the bearing and the bearing,

the machining tool driving device is coupled to the spindle via a coupling and is detachable from the spindle.

6. A method of machining a guide rail, comprising:

a machining step of machining the guide rail with a machining tool while moving a machining device main body along the guide rail, the machining device main body including: a frame; a processing tool support member provided to the frame; a spindle rotatably provided to the machining tool support member; the machining tool is arranged on the main shaft and used for cutting off at least one part of the guide rail; and a working tool driving device which rotates the working tool; and

a replacement step of replacing an assembly including the machining tool support member, the spindle, and the machining tool with a new assembly having the same structure as the assembly in a state where the assembly is assembled,

the machine tool driving device has a driving shaft and a driving device main body for rotating the driving shaft,

the processing apparatus main body further includes a movable support member slidable with respect to the frame.

Images