JP5762264B2 - Elevator device with grooving device - Google Patents

Description

  The present invention relates to an elevator apparatus, and more particularly to regeneration of a grooved wheel that is worn by rotation of a rope.

  Elevators, cranes, lifts, ropeways, cable cars, etc. are equipped with rope drive devices. In the rope drive device, when the grooved wheel is rotated by the power of the drive machine, a frictional force is generated between the rope and the rope groove. Since the undercut groove formed in the groove wheel securely holds the rope, a stable frictional force is ensured. The rope moves in conjunction with the rotation of the ditch wheel, and the car moves up and down. The rope groove gradually wears due to a minute slip of the rope while being used for a long time. The speed of wear of the rope groove varies from groove to groove. If the desired frictional force and the delivery amount cannot be obtained, the transmission efficiency of the driving force decreases.

  Patent document 1 is disclosing the rope drive device provided with the groove processing apparatus. The rope groove is modified by using a rotating grinding wheel (ball grindstone) having a cross section approximate to the cross section of the rope. In order to improve the efficiency of the correction processing, the relative position in the radial direction of the grinding load and the grooved wheel with respect to the grindstone is measured, and the processing position is controlled. Since the groove processing device is installed in a portion where the rope is not wound, it is not necessary to remove the rope when the rope groove is corrected. Patent Document 2 discloses a method of performing groove correction processing by removing a rope in a rope driving device having a tool position adjusting mechanism (such as a tool stand).

JP 2008-87132 A JP-A-61-65703

  In the grooving apparatus of Patent Document 1, when the grooved wheel is displaced in the direction of its rotation axis, forced displacement occurs in the tool. As a result, the tool may be overloaded and the tool may be damaged. There is a problem that a desired groove shape cannot be obtained even if it does not break, and the depth of the undercut groove cannot be corrected because the tool is a rotating grindstone. When the depth of the undercut groove is reduced every time the rope groove is corrected, the gripping force of the rope is lowered, and the transmission efficiency of the driving force is lowered.

  Consider changing the tool for correcting the undercut groove from a rotating whetstone to a turning tool. Even if a load detection device for a rotating tool is used, it is difficult to directly measure the machining load (cutting load) of turning. Since the turning tool is generally processed by fixing the position in the rotation axis direction, if the workpiece displaced in the rotation axis direction is processed by the turning tool, the turning tool is damaged.

  The present invention has been made to solve the above-described problems in the grooving apparatus, and an object thereof is to realize grooving with high shape accuracy while suppressing the occurrence of tool breakage. As a result, it aims to shorten the time required for groove correction processing.

An elevator apparatus equipped with a groove processing apparatus according to the present invention is arranged at a position facing a groove wheel, and a groove wheel having a reference surface that serves as a radial position reference, depending on whether the rope is suspended by the rope. Turning tool, a first movable part that moves the turning tool in the radial direction of the grooved wheel, a second movable part that moves the turning tool in the direction of the rotation axis of the grooved wheel, and the position of the reference surface of the grooved wheel The position measurement device for measuring the position, the reference feed set value serving as a reference for the feed amount of the turning tool, and the position measurement value measured by the position measurement device are stored, and the first measurement is performed based on the reference feed set value and the position measurement value. A control unit that controls the position of the movable part and the second movable part; The control device calculates the feed amount in the direction of the rotation axis of the turning tool from the difference between the measured position of the reference surface measured at the start of turning of the grooved wheel and the measured value of the reference surface measured during turning of the grooved wheel. The second movable part is moved in the direction of the rotation axis of the grooved wheel based on the calculated feed amount .

  According to the present invention, it is possible to prevent biting scratches or tool breakage due to rotational vibration of the bearing of the grooved wheel, so that the required groove shape can be reliably realized while avoiding an inappropriate groove shape. In addition, it is possible to cope with abrupt machining abnormalities due to tool wear, foreign object biting, etc., and to prevent tool breakage and device failure due to biting flaws and overload. Non-processing time such as tool change, flaw correction, and device repair is shortened, and it is not necessary to remove the rope. As a result, the groove can be efficiently corrected.

It is a side schematic block diagram which shows the relationship between the elevator apparatus and groove processing apparatus which concern on this application. It is the schematic which shows the shape of the drive sheave immediately after new installation. It is a figure which shows the relationship between a groove processing apparatus and a control apparatus. It is a side view which shows the state which the process powder has generate | occur | produced by the groove process. It is the schematic which shows the shape of the drive sheave which abrasion advanced. It is a side view which shows the shape of a deflecting wheel. It is the graph which measured the moving amount | distance to the rotating shaft direction of the grooved wheel, and the moving amount | distance to the radial direction of a grooved wheel which arise with the raise operation of an elevator apparatus. 3 is a flowchart showing a control procedure of the grooving apparatus according to the first embodiment. 10 is a flowchart showing a control procedure of the grooving apparatus according to the second embodiment. 10 is a flowchart showing a control procedure of the grooving apparatus according to the third embodiment. 14 is a flowchart showing a control procedure of the grooving apparatus according to the fourth embodiment. It is a side view of the groove processing apparatus in Embodiment 5.

Embodiment 1 FIG.
FIG. 1 is a schematic side view showing an elevator apparatus equipped with a groove processing apparatus according to the present invention. The elevator device 100 includes a car 1, a rope 2, a counterweight 3, a rope drive device 10, and the like. The rope driving device 10 includes a grooved wheel (driving sheave) 4, a fixed body 5, a grooved wheel (warping wheel) 6, a groove processing device 7 (7a and 7b), and the like. The car 1 is suspended by a rope 2. The rope 2 has one end fixed to the car 1 and the other end fixed to the counterweight 3. A rope 2 is wound around the groove wheel 4 and the groove wheel 6. The grooved wheel 4 and the grooved wheel 6 are fixed to a fixed body 5 and installed in a machine room or the like. The ditch wheel 6 is used to align the suspension position of the car 1 and the counterweight 3. The groove processing device 7 a is attached upward to the fixed body 5 and corrects the rope groove of the groove wheel 4. The groove processing device 7b is attached downward to the fixed body 5, and corrects the groove wheel 6.

FIG. 2 is a schematic cross-sectional view showing the shape of the grooved wheel 4 immediately after the elevator apparatus is newly installed. The grooved wheel 4 aims at smooth rope driving, and the groove shape is processed with high accuracy (usually 50 to 100 μm). The grooved wheel 4 is rotated by a drive machine (winding machine) 11. The driving machine 11 is fixed to the fixed body 5. A plurality of rope grooves 4 a are formed on the groove wheel 4 to wind the rope 2. An undercut groove 4c is formed at the bottom of the rope groove 4a, and the rope 2 is securely held by the wedge action. The grooved wheel 4 is processed with reference to a reference surface 4x in the rotation axis direction (X direction: right and left direction of the paper surface in FIG. 2) and a reference surface 4z in the radial direction (Z direction: vertical direction of the paper surface in FIG. 2). . The reference surface 4x is provided on the side surface of the grooved wheel and the reference surface 4z is provided on the upper side of the grooved wheel so as not to be worn by the rope 2.

  FIG. 3 is a side view showing the relationship between the groove processing device 7 a and the grooved wheel 4. The relationship between the groove processing device 7b and the groove wheel 6 is the same. A tool (turning tool) 9 is arranged at a position facing the groove wheel 4. The attachment portion 8 forms the base of the groove processing device 7 and fixes the groove processing device 7 to the fixed body 5 in a detachable manner. The tool 9 is attached to the tool holder 91 and turns the rope groove 4a. The movable support portion 13 includes an X-direction movable portion 14 and a Z-direction movable portion 15 and is provided between the attachment portion 8 and the tool 9. The X-direction movable unit 14 moves the tool 9 in the direction of the rotation axis of the grooved wheel 4. The Z-direction movable unit 15 moves the tool 9 in the radial direction of the grooved wheel 4. The control device 23 is connected to the X-direction movable portion 14 and the Z-direction movable portion 15 with a connection cable 51. The dust collector 18 is connected to the tool holder 91. The tool 9, the dust collector 18, the tool holder 91, and the like serve as a processing portion of the groove processing device 7.

  The position measuring device 20 is attached to the Z-direction movable unit 15 and measures the position of the reference surface 4z of the grooved wheel 4. The position measuring device 48 (48a and 48b) is attached to the fixed body 5 of the rope drive device, and measures the position of the reference surface 4x of the grooved wheel 4. For example, the position measuring device 48a and the position measuring device 48b are arranged symmetrically with respect to the rotation center of the grooved wheel 4 and measure different portions of the reference plane 4x. The load measuring device 22 measures a moving (cutting) load in the radial direction of the tool 9 or a holding load held at the position. The load measuring device 49 measures a moving load or a holding load in the rotation axis direction of the tool 9. The control device 23 includes a radial position measurement value from the position measurement device 20, a rotational position measurement value from the position measurement device 48, a radial load measurement value from the load measurement device 22, and a load measurement device 49. The feed amounts of the X-direction movable portion 14 and the Z-direction movable portion 15 are calculated based on the measured load values in the rotation axis direction and output to the movable support portion 13. Since the X direction movable part 14 and the Z direction movable part 15 move the tool 9 based on the calculated feed amount, the tool 9 processes an appropriate position of the grooved wheel 4.

  The undercut groove 4cM indicates a part of the undercut groove 4c provided in the grooved wheel 4 that has been regenerated. When the grooved wheel 4 and the grooved wheel 6 are turned and removed by the tool 9, machining powder is generated, and the machining powder falls vertically downward by gravity. FIG. 4 shows a state in which the grooved wheel 4 is turned by the groove processing device 7a. The dust collector 18 collects the processed powder 17 through the dust collection hole 19. The dust collection hole 19 is disposed so as to be approximately vertically below the tool 9 and at a position that does not interfere with the processing. In this example, the dust collection hole 19 is attached to the tool holder 91. The opening of the dust collection hole 19 has an area in consideration of a slight spread in the scattering of the processed powder 17. The dust collector 18 sucks the processing powder 17 captured in the dust collection holes 19 together with the surrounding air, and therefore collects almost 100% of the processing powder 17.

  Usually, in order to prevent an increase in rope slip due to adhesion of the processed powder 17 to the rope 2, a sufficient cleaning operation is necessary after the processing. Since the dust collector 18 can surely collect the processed powder 17, it is possible to prevent the processed powder 17 from adhering to the rope 2 and the rope groove. Intrusion of the machining powder 17 into the sliding surfaces of the X-direction movable portion 14 and the Z-direction movable portion 15 and the biting of the cutting edge of the tool 9 are also suppressed, and a reduction in machining accuracy can be prevented. Furthermore, cleaning work during and after processing can be omitted, and correction work can be performed efficiently. In the above description, the dust collection hole 19 is attached to the tool holder 91. However, as long as the dust collection hole 19 is vertically below, it is not necessary to limit to such attachment relationship, and any place may be used as long as it does not interfere with processing.

FIG. 5 is a schematic view showing the shape of the grooved wheel 4 in which wear has progressed. The grooved wheel 4 is rotatably held by a bearing. Even if the rolling elements (balls, rollers, etc.) inside the bearing have the same diameter in the initial stage of use, the difference in diameter becomes several tens of μm as wear progresses over a long period of use. As the rolling element wears, the rotation of the grooved wheel 4 shifts from complete circular motion to incorrect rotation. In order to know the rotating state of the groove wheel 4, the groove processing device 7a according to the present application measures the position measuring device 48 that measures the rotating position of the reference surface 4x and the rotating position of the reference surface 4z. A position measuring device 20 is provided.

  FIG. 6 shows the shape of a grooved wheel (baffle wheel) 6. The groove wheel 6 is rotatably held by a bearing and is rotated by the frictional force of the rope 2. Similar to the groove wheel 4, the groove wheel 6 is formed with a semicircular rope groove 6a, but there is no undercut groove. The grooved wheel 6 is machined based on the reference surface 6x in the rotation axis direction and the reference surface 6z in the radial direction. The groove processing device 7b includes a position measuring device 48 that measures a rotating position of the reference surface 6x and a position measuring device 20 that measures a rotating position of the reference surface 6z.

  FIG. 7 is a measurement graph showing the movement of the grooved wheel in the direction of the rotation axis and the movement of the grooved wheel in the radial direction, measured while the grooved wheel 4 is rotating. Based on this figure, the rotational state of the grooved wheels 4 and 6 in which wear has progressed will be described. The measurement graph was obtained when the elevator apparatus was directly operated from the lowest floor (first floor) to the highest floor. The radial position change measured by the position measuring device 20 is 30 to 50 μm on the basis of the stop state, and the fluctuation of one rotation period of the grooved wheel and the irregular fluctuation are overlapped. The position change in the direction of the rotation axis measured by the position measuring device 48 is 50 to 300 μm on the basis of the stop state, and changes in one rotation period and irregular fluctuations of the grooved wheel, and further step by step for every certain height. Various position changes are superimposed.

  In this state, the feed amount of the tool increases rapidly, and a bite damage occurs. If the irregular rotation has periodicity, measures can be taken to some extent, but it is unlikely that the positional relationship of the rolling elements that are the cause is periodically reproduced. Even if attention is paid to the periodicity of unauthorized rotation, it is impossible to avoid this biting and the like, and normal machining control cannot be performed. This time, it was found that the position change in the rotation axis direction is actually larger than the position change in the radial direction. The change is larger than the normally required shape accuracy (about 100 μm) and is about 300 μm.

  According to the present invention, the rope groove and the undercut groove can be efficiently corrected to the required shape. An outline of the processing procedure will be described first. The control device 23 stores a reference feed set value Zb that is a standard feed amount of the tool 9 in advance. Using the position measuring device 20, the positional relationship in the radial direction (Z direction) between the groove wheel 4 and the groove processing device 7a is measured. The control device 23 calculates the feed amount of the tool 9 so that the positions of the groove wheel and the tool 9 are ensured as set, and controls the Z-direction movable unit 15. The groove wheel 6 is similarly controlled.

  FIG. 8 is a flowchart showing a procedure for controlling the cutting amount based on the position measurement value (measurement position) by the position measuring device 20. Actually, calculation, determination and execution are performed by the control device 23. First, the control device 23 stores the position (measurement position Z0) of the reference plane 4z in the Z direction at the start of machining (step S0). Next, the position in the Z direction (measurement position Z1) of the reference surface 4z at the time of processing is measured (step S1). The position change amount ΔZ (= Z1−Z0) is obtained by comparing the measurement position Z1 at the time of machining with the measurement position Z0 at the start of machining (step S2). The position change amount ΔZ is added to the reference feed set value Zb to obtain a feed amount Z (Zb + ΔZ) (step S3). The Z direction movable part 15 is driven, and Z direction feed (cutting) of the feed amount Z is performed (step S4). Hereinafter, since this operation is repeated, a stable feed amount can be secured.

Embodiment 2. FIG.
In turning, the movement of the grooved wheel 4 in a direction other than the cutting direction of the tool 9 results in cutting in the direction in which the tool 9 does not have a blade, so that it does not contribute to machining, but the tool 9 is forced to deform in that direction. It is done. If the stress due to this deformation exceeds the breaking stress of the tool 9, the tool 9 is naturally broken. Since normal tools are hard, that is, because the Young's modulus is high, the stress generated even by slight deformation is large. That is, the movement of the grooved wheel in the direction other than the cutting direction causes the tool to be broken (chip, breakage, etc.), and the machining becomes impossible. In the present application, when there is a movement of the machining location of the grooved wheel, the tool is moved by the amount of movement, so that correction processing can be realized with a required shape without causing tool destruction or the like.

  In the second embodiment, control in the X direction (rotational axis direction) is handled. FIG. 9 is a flowchart showing a procedure for controlling the tool position by the position measuring device (48a or 48b) according to the present invention, which is calculated, judged and executed by the control device 23. First, the measurement position X0 of the reference surface 4x in the X direction at the start of machining is stored (step S10). Next, the position in the X direction (measurement position X1) of the reference surface 4x is newly measured (step S11). The measurement position X1 is compared with the measurement position X0 at the start of machining to obtain a position change amount ΔX (= X1−X0) (step S12). A negative sign is added to the position change amount ΔX to obtain a return amount (−ΔX) (step S13). The X-direction movable unit 14 is driven based on the position change amount ΔX or the return amount (−ΔX), and the tool 9 is fed in the direction in which the position change amount ΔX decreases (step S14). Hereinafter, since the returning operation is repeated during turning, the machining position in the X direction is always a fixed position, and stable machining can be ensured.

  In the present invention, since the position of the groove wheel is constantly monitored and controlled by the position measuring device 48 (48a and 48b), the machining position can be stabilized and the required groove shape can be obtained reliably. Therefore, efficient processing that can sufficiently exhibit the performance of the groove processing device 7 can be realized. Furthermore, it is possible to suppress the influence on processing (such as the occurrence of biting scratches and the reduction in processing efficiency) due to the unauthorized rotational movement of the bearing of the grooved wheel 4.

  During normal machining, the electromagnetic drive (motor) of the elevator is activated, so that considerable electromagnetic noise exists in the vicinity of the position measuring devices 20 and 48. Noise may be applied to the analog signals of the position measuring devices 20 and 48 to prevent accurate position measurement. As a countermeasure, a position measuring device having a digital scale such as an optical scale or a magnetic scale is particularly effective. A signal from a position measuring device having a digital scale represents a change in position in units of 1 μm depending on the presence or absence of the signal. Even if there is a strong noise, the presence or absence of a signal can be easily determined, so that the position can be reliably measured.

  The position measuring devices 20 and 48 can measure the position of the reference surface, and may be attached at any position as long as it does not interfere with processing. Although control requires position information of the machining point where cutting is actually progressing, it is impossible in principle to directly measure the position of the machining point because there is a tool. If a plurality of position measuring devices are attached, the position of the cutting edge can be calculated with higher accuracy.

  The actual movement of the grooved wheel includes not only rotation and translation in the X and Z directions, but also angular change. The measurement value includes a measurement error due to roughness, waviness, dust, etc. existing on the actual measurement surface. Although only the Z-direction position measuring device 20 and the X-direction position measuring device 48a cannot calculate the exact movement of the grooved wheel (that is, the position of the machining point), the calculation accuracy increases if the number of measurement points is increased. If the machining control of FIGS. 8 to 11 is performed using the calculated values of the machining points obtained by calculation with three or more measurement values obtained from the position measuring devices 20, 48a, 48b, machining can be performed with higher accuracy. . That is, groove correction processing can be realized more efficiently and with high shape accuracy.

Embodiment 3 FIG.
In the third embodiment, a load measuring device 22 in the Z direction is used. In turning, a cutting speed as high as possible is set within a range in which a tool or device does not break down in order to improve machining efficiency. On the other hand, the rotational movement of the grooved wheel is irregularly eccentric in the radial direction (Z direction), that is, the cutting direction as described above. If a constant cutting speed (feeding speed) is set according to the amount of cutting when the grooved wheel (drive sheave) is closest, so that the tool is not damaged, the cutting will be zero when the grooved wheel escapes the most. Sometimes it becomes. This can avoid breakage of tools and the like, but the processing efficiency is extremely low. In the third embodiment, the load on the Z-direction movable unit 15 is measured by the load measuring device 22 in the Z-direction. The cutting amount (feed amount) is calculated by the control device 23 so that the measured load falls within the set value range, and the Z-direction movable unit 15 is controlled.

  FIG. 10 is a flowchart showing a procedure for controlling the cutting amount by the load measuring device 22. Actually, it is processed inside the control device 23. First, data such as “lower limit set load Lzd” that can provide sufficient machining efficiency and “upper limit set load Lzu” that is allowed for the tool to prevent failure of the device, such as preliminary experiments and specifications of Z-direction movable unit 15. And stored in the control device 23. Next, load measurement is performed by the load measuring device 22 to obtain a measured load Lz1 (step S21). The measured load Lz1 and the lower limit set load Lzd are compared (step S22). When the measured load Lz1 is lower than the lower limit set load Lzd, the feed amount Z in the Z direction is set to, for example, twice the normal reference feed set value Zb. (Step S24), Z-direction feeding is performed (step S27).

  When the measured load Lz1 is between the lower limit set load Lzd and the upper limit set load Lzu, the feed amount Z remains the reference feed set value Zb (steps S23 and S25), and Z-direction feed is performed (step S27). If the measured load Lz1 exceeds the upper limit set load Lzu, the tool is retracted in the direction opposite to the reference feed direction in order to prevent the apparatus from being damaged. Actually, in the control device 23, the feed amount Z is set as the backward feed set value (negative feed amount) Zn (steps S23 and S26), and a command is issued to the Z-direction movable unit 15 (S27). For example, Zn is set to -Zb. Hereinafter, if this operation is repeated, the most efficient and stable machining can be realized.

  In other words, by always machining with an appropriate cutting amount with the tool 9, the turning ability can be maximized, the machining efficiency can be improved and stabilized, and the actual machining time can be shortened. In addition, it is possible to cope with a sudden machining abnormality due to the biting of foreign matter in the tool 9, and it is possible to prevent chipping of the blade edge or device failure. This processing abnormality cannot be detected by the position measuring device. In addition, it is possible to monitor the wear of the tool edge, etc., to properly grasp the time for changing the tool, and to prevent changes in the groove shape such as peeling of the machined surface due to unreasonable machining. As a result, it is possible to perform an efficient correction process that can sufficiently exhibit the performance of the groove processing apparatus. Note that the load measurement method may be calculated from power (voltage, current, etc.) supplied to the motor of the Z-direction movable unit 15.

Embodiment 4 FIG.
In the fourth embodiment, a load measuring device 49 in the X direction will be described. In turning, movement of the grooved wheel in a direction other than the cutting direction of the tool results in cutting in a direction without a blade and is not processed. The tool is also forced to deform in that direction. If the stress due to this deformation exceeds the breaking stress of the tool, the tool will naturally break. Since normal tools are hard, that is, because the Young's modulus is high, the stress generated even by slight deformation is large. That is, movements other than the cutting direction cause tool breakage (chips, breakage, etc.), and the machining becomes impossible. In the present embodiment, when there is a movement, the tool is moved by the amount of the movement, so that correction processing can be realized with a required shape without causing tool destruction or the like.

  In the fourth embodiment, the load in the X direction movable unit 14 is measured by the load measuring device 49 in the X direction, and the X direction movable unit 14 is driven so that the measured load does not exceed the set value. Control such as reducing the cutting amount (feed amount) or stopping the processing. FIG. 11 is a flowchart showing a procedure for preventing breakage of the tool by the load measuring device 49, which is actually processed inside the control device 23.

First, the set load Lx is determined from data such as a specification sheet according to the breaking stress of the tool 9 and stored in the control device 23. Next, load measurement is performed to obtain a measured load Lx1 (step S31). The measured load Lx1 is compared with the set load Lx (step S32). If the measured load Lx1 is equal to or less than the set load Lx, the processing is continued and the process returns to step S31. When the measurement load Lx1 exceeds the set load Lx, the tool 9 is moved in a direction in which the load applied to the tool 9 decreases in order to prevent the apparatus from being damaged (steps S32 and S33). In order to reduce the load, a method of retracting in the Z-axis direction (reducing the cutting amount) or moving the X-axis in the direction opposite to the load can be considered. Next, the measurement load Lx2 after movement is measured (step S34). If the measurement load Lx2 is equal to or less than the set load Lx, the processing is continued as it is and the process returns to step S31 (step S35). If there is no reduction in the measurement load Lx2, the processing is stopped (steps S35 and S36). In short, the comparison between the measured load and the set load Lx is repeatedly performed, and when it is determined that the measured load is continuously larger than the set load Lx, the turning process is stopped. Since this operation is controlled by the control device, correction processing can be continued while avoiding tool breakage.

  According to the fourth embodiment, by avoiding breakage of the tool 9, it is possible to reduce the actual machining time by eliminating the occurrence of dead time such as frequent tool change and repair of the apparatus. It is possible to cope with a sudden machining abnormality due to the biting of foreign matter in the tool 9, and to prevent chipping of the blade edge or device failure. As a result, it is possible to perform an efficient correction process that can sufficiently exhibit the performance of the groove processing apparatus. This processing abnormality cannot be detected by the position measuring device. Note that the load measuring method may be calculated from the power (voltage, current, etc.) supplied to the motor of the X-direction movable unit 14, and the deformation of the tool or the tool holder may be detected by a strain gauge. It is not limited.

  Although the movement of the grooved wheel in the rotational axis direction and the radial direction is irregular, it has a periodicity generally synchronized with the rotation. If this periodicity is confirmed by measurement in advance, the control device 23 may calculate the control amount using this periodicity. In other words, if the amount of change in the position measurement value for one rotation is stored in advance and the control amount is calculated only from the difference from the actually measured position, the numerical data amount is reduced, and the calculation accuracy and calculation speed are improved. , Control calculation accuracy is improved. Therefore, groove correction processing can be realized more efficiently and with higher accuracy. Further, since the amount of data handled by the control device 23 is reduced, the control device can be replaced with an inexpensive one.

  In particular, when the periodicity is remarkably good, the control is periodically performed with a position measurement amount for one rotation measured in advance, and the above-described real-time measurement control may not be performed. In this case, calculation of the control device is simplified, and an inexpensive control device can be realized. Further, it is not necessary to attach the position measuring device during processing, and the sensor installation work, the sensor interference avoidance work, etc. can be omitted, and the work time is shortened.

Embodiment 5 FIG.
FIG. 12 is a front view showing a groove machining apparatus according to Embodiment 5 of the present invention. In the figure, the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. The tool holder 91 can grip a plurality of tools 9 (four in the figure). And the holding pitch of the tool 9 is made equal to the pitch of the rope groove 4a. By gripping a plurality of tools in this way, groove correction processing can be realized at the same time, and groove correction processing can be realized more efficiently.

  1 car, 2 rope, 3 counterweight, 4 grooved wheel, 4a rope groove, 4c undercut groove, 4x reference surface, 4z reference surface, 5 fixed body, 6 grooved wheel, 7 groove processing device, 8 mounting part, 9 tool , 91 Tool holder, 11 Drive machine, 13 Movable support part, 14 X direction movable part, 15 Z direction movable part, 17 Work powder, 18 Dust collector, 19 Dust collection hole, 20 Position measuring device, 22 Load measuring device, 23 Control Device, 48 position measuring device, 49 load measuring device, 100 elevator

Claims (13)

The one suspended by a rope
A grooved wheel having a reference surface around which the rope is wound and serving as a position reference in the direction of the rotation axis;
A turning tool arranged at a position facing the groove wheel,
A first movable part that moves the turning tool in the radial direction of the grooved wheel;
A second movable part for moving the turning tool in the direction of the rotation axis of the grooved wheel;
A position measuring device for measuring the position of the reference surface of the grooved wheel;
A reference feed set value serving as a reference for the feed amount of the turning tool and a position measurement value measured by the position measuring device are stored, and the first movable unit is based on the reference feed set value and the position measurement value. A control device for controlling the position of the second movable part,
The control device determines the rotational axis direction of the turning tool from the difference between the position measurement value of the reference surface measured at the start of turning of the grooved wheel and the position measurement value of the reference surface measured during turning of the grooved wheel. An elevator apparatus equipped with a groove machining device, wherein the second movable portion is moved in the direction of the rotation axis of the grooved wheel based on the calculated feed amount. The elevator apparatus provided with the groove processing device according to claim 1 , wherein a plurality of the turning tools are arranged in the rotation axis direction of the grooved wheel at the same interval as the interval of the rope grooves formed in the grooved wheel. . The elevator apparatus with a grooving apparatus according to claim 1 , wherein the turning tool is supported by a tool holder, and the tool holder is provided with a dust collector for collecting turning scraps. The one suspended by a rope
A groove wheel around which the rope is wound;
A turning tool arranged at a position facing the groove wheel,
A first movable part that moves the turning tool in the radial direction of the grooved wheel;
A second movable part for moving the turning tool in the direction of the rotation axis of the grooved wheel;
A load measuring device for measuring a load applied to the first movable part;
A reference feed set value serving as a reference for the feed amount of the turning tool, an upper limit value determined in accordance with a load size allowed for the turning tool, and a lower limit value of a load corresponding to a lower limit of the turning speed are stored. A control device that controls the positions of the first movable part and the second movable part based on the reference feed set value, the upper limit value, and the lower limit value,
The control device compares the load measured by the load measuring device during turning of the grooved wheel with the lower limit value and the upper limit value, and the measured load is larger than the lower limit value and higher than the upper limit value. Is smaller, the first movable part is moved in the radial direction of the grooved wheel based on the reference feed set value. 5. The grooving according to claim 4 , wherein when the load measured by the load measuring device is smaller than a lower limit value, the control device sets the feed amount of the turning tool to a value larger than a reference feed set value. Elevator equipment with equipment. 5. The grooving apparatus according to claim 4 , wherein the control device moves the turning tool in a direction opposite to the reference feed direction when the load measured by the load measuring device is larger than the upper limit value. Elevator equipment provided. 5. An elevator apparatus comprising a groove machining apparatus according to claim 4 , wherein a plurality of turning tools are arranged in the direction of the axis of rotation of the grooved wheel at the same interval as that of the rope grooves formed in the grooved wheel. . 5. The elevator apparatus with a grooving apparatus according to claim 4 , wherein the turning tool is supported by a tool holder, and a dust collector for collecting turning scraps is provided on the tool holder. The one suspended by a rope
A groove wheel around which the rope is wound;
A turning tool arranged at a position facing the groove wheel,
A first movable part that moves the turning tool in the radial direction of the grooved wheel;
A second movable part for moving the turning tool in the direction of the rotation axis of the grooved wheel;
A load measuring device for measuring a load applied to the second movable part;
A reference feed set value serving as a reference for the feed amount of the turning tool and a set value determined according to the magnitude of the load in the rotation axis direction allowed for the turning tool are stored, and the reference feed set value and the set value are stored. A control device for controlling the position of the first movable part and the second movable part based on
The control device compares the set value with a load measured by the load measuring device during turning of the grooved wheel, and based on the reference feed set value when the measured load is smaller than the set value. An elevator apparatus equipped with a groove processing apparatus that moves the first movable portion in the radial direction of the grooved wheel. The control device compares the set value with the load measured by the load measuring device during turning of the grooved wheel, and when the measured load is larger than the set value, the turning tool is set in a direction in which the load decreases. The elevator apparatus provided with the groove processing apparatus according to claim 9 , wherein the elevator apparatus moves. The control device performs an operation of moving the turning tool in a direction in which the load decreases during turning of the grooved wheel, and continuously performs an operation of measuring the load again by the load measuring device, and the load measured again is 11. The elevator apparatus equipped with the grooving device according to claim 10 , wherein the machining is stopped when it is determined that the value is larger than the set value. The elevator apparatus having a groove machining apparatus according to claim 9 , wherein a plurality of the turning tools are arranged in the rotation axis direction of the grooved wheel at the same interval as the interval of the rope grooves formed in the grooved wheel. . The elevator apparatus with a grooving apparatus according to claim 9 , wherein the turning tool is supported by a tool holder, and the tool holder is provided with a dust collector for collecting turning scraps.

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