WO2003053836A1 - Dispositif de detection de charge, procede de commande et dispositif elevateur - Google Patents

Dispositif de detection de charge, procede de commande et dispositif elevateur Download PDF

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Publication number
WO2003053836A1
WO2003053836A1 PCT/JP2001/011183 JP0111183W WO03053836A1 WO 2003053836 A1 WO2003053836 A1 WO 2003053836A1 JP 0111183 W JP0111183 W JP 0111183W WO 03053836 A1 WO03053836 A1 WO 03053836A1
Authority
WO
WIPO (PCT)
Prior art keywords
load
wire
value
detection
pulley
Prior art date
Application number
PCT/JP2001/011183
Other languages
English (en)
Japanese (ja)
Inventor
Shigenobu Kawakami
Yukihiro Takigawa
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to PCT/JP2001/011183 priority Critical patent/WO2003053836A1/fr
Priority to JP2003554560A priority patent/JP4137795B2/ja
Priority to DE60141306T priority patent/DE60141306D1/de
Priority to CNB018227449A priority patent/CN1297464C/zh
Priority to KR1020037010690A priority patent/KR100574434B1/ko
Priority to EP01275075A priority patent/EP1464607B1/fr
Publication of WO2003053836A1 publication Critical patent/WO2003053836A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/14—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/14—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads
    • B66B5/145—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads electrical

Definitions

  • the present invention relates to a load detection device for detecting a load applied to a car of an elevator device, a control method thereof, and an elevator device.
  • FIG. 8 is a schematic diagram showing a conventional load detecting device.
  • 1 is a base installed in a hoistway or a machine room
  • 3 is a plurality of shirt loop rods that penetrate the base 1 and support one end of a tow rope that suspends a car, etc.
  • 5 is a shirt loop opening.
  • 7 is a nut for determining the use length of the shackle spring
  • 8 is a nut for fixing the pulley base
  • 10 is the variation in the load applied to multiple shirt rods 3.
  • a frame supporting the detection device, 16 is a plurality of fixed pulleys supported by the frame 15 and the working side wire is wound, and 18 is one end supported by the detection pulley and the other end is slidingly moved.
  • the operating wire supported by the fixing member via the fixing slide, 20 is a bar screw as a fixing member, 22 is a nut for positioning the bar screw 20, and 30 is a frame 15.
  • a fixed support shaft, 32 is installed on the detection pulley and a sensor that detects the rotation angle of the detection bouley, and 35 is rotated in conjunction with the movement of the working wire 18 and the tension side wire.
  • the detection pulley 35a is a notch provided in the detection pulley 35, 37 is a fixing fitting that fits into the notch 35a and supports the operation side wire 18 and the tension side wire.
  • Reference numeral 40 denotes a tension-side wire having one end supported by a fixing bracket 37 and the other end supported by a tension spring.
  • Reference numeral 42 denotes a rotating force for applying a rotating force to the detection pulley 35 in a no-load direction.
  • Tension as supply unit Shows a spring.
  • the shirt loop rod 3, the shirt loop spring 10, the spring seat 5, the nut 7, the base 1, and the like constitute a tie-down portion of the elevator apparatus.
  • the cleats are installed in the hoistway or in the machine room.
  • a tow rope (not shown) supported at the lower end of the shirt loop rod 3 suspends a not-shown riding car and a power weight in the hoistway, and is driven by a hoist to drive the riding car and the counter. Raise and lower the weight in the opposite direction.
  • a load detection device is composed of moving pulleys 13, pulley stands 12, fixed pulleys 16, detection pulleys 35, sensors 32, working wires 18, tension wires 40, and tension springs 42. are doing.
  • the load detecting device operates as follows.
  • the operation side wire 18 is wound around a plurality of moving pulleys 13 and a plurality of fixed pulleys 16 alternately. Then, the operation wire 18 gives the detecting pulley 35 a rotating force for rotating the detecting pulley 35 clockwise in the figure.
  • the tension-side wire 40 and the tension spring 42 apply a rotating force to rotate the detection pulley 35 counterclockwise (no load direction). As a result, a predetermined tension is applied to the working wire 18.
  • the position of the sensor 32 shown in FIG. 8 indicates a case where the load in the car is in the reference state.
  • the shirt loop rod 3 pushes down the shackle spring 10 and moves below the position shown in FIG. With the movement of the shirt loop rod 3, the positions of the moving pulley 13 and the pulley stand 12 also move downward. Thereby, the operation side wire 18 rotates the detection pulley 35 clockwise in the drawing. At this time, the moving amount of the working side wire 18 corresponds to twice the moving amount of the shirt loop rod 3, and the rotation angle of the detection pulley 35 corresponds to the moving amount of the working side wire 18.
  • the detection pulley 35 and the sensor 32 fixed to the detection pulley 35 rotate clockwise about the support shaft 30. Then, the rotation angle of the detection pulley 35 is detected by the sensor 32, and the load in the car is detected from the detected value.
  • the sensor 32 is, for example, an inclination sensor (acceleration sensor), It detects the component force of the acceleration and obtains the rotation angle of the detection pulley 35 from the value.
  • the shirt loop rod 3 is pushed up by the spring force of the shackle spring 10 and moves upward from the position in FIG. With the movement of the shirt loop rod 3, the positions of the moving pulley 13 and the pulley stand 12 also move upward. At this time, the tension is applied to the operation side wire 18 by the tension side wire 40 and the tension spring 42, and the detection pulley 35 rotates counterclockwise in the drawing. Then, the rotation angle of the detection pulley 35 is detected by the sensor 32, and the load in the car is detected from the detected value.
  • the detected value of the load of the car detected as described above is transferred to the control unit that controls the inverter in the drive power supply of the hoist. Then, according to the detected value, the rotation speed of the hoist around which the tow rope is wound is finely adjusted. On the other hand, if the detected value of the load on the car exceeds a predetermined value, control is performed so that a warning sound indicating that the car is overloaded is issued to the car.
  • FIG. 9 is a schematic view showing another conventional load detecting device.
  • the load detector of FIG. 9 differs from the load detector of FIG. 8 in that a weight 45 is used instead of the tension spring 42 for applying tension to the working wire 18. I do.
  • one end of the tension side wire 40 is connected to the fixing bracket 37 of the detection pulley 35, and the other end is connected to the weight 45.
  • the configuration of each of the other members and the operation of the load detection device are the same as those of the above-described load detection device in FIG.
  • the load detection device described above when the operation side wire 18 or the tension side wire 40 is broken, a load exceeding the allowable load is loaded on the car, or the detection pulley 35 rotates. There is a problem that the detection pulley 35 runs idle without being able to control the speed.
  • the present invention has been made in order to solve the above-mentioned problem, and even if a wire wound around a detection pulley as a rotating body is broken, the car is not raised and lowered in an overloaded state. It is still another object of the present invention to provide a highly reliable load detection device, a control method thereof, and an elevator device, in which parts such as sensors are not damaged. Disclosure of the invention
  • the present invention relates to a load detecting device provided with a sensor for detecting a rotation angle of a rotating body that rotates in response to a load change, and determines a state of a wire based on a detection value of the sensor. .
  • This makes it possible to reliably recognize the breakage of the wire, thereby avoiding the burden on the elevator apparatus caused by raising and lowering the car in an overloaded state.
  • the present invention in the above-described improved load detecting device, identifies whether or not the wire is in a normal state based on whether or not the detected value of the sensor is within a predetermined range. This makes it possible to reliably recognize the breakage of the wire, thereby avoiding the burden on the elevator apparatus caused by raising and lowering the car in an overloaded state.
  • the present invention provides the above-described improved load detecting device, wherein a normal range of the wire state is determined by adding or subtracting a margin from a value detected by the sensor under an allowable load or under no load. . This makes it possible to reliably recognize the breakage of the wire, thereby avoiding the burden on the elevator system caused by raising and lowering the car in an overloaded state.
  • the present invention is a load detecting device including a rotating body that rotates in response to a load change, and includes a rotation restricting member that restricts a rotating range of the rotating body.
  • a rotation restricting member that restricts a rotating range of the rotating body.
  • the present invention in the above-described improved load detection device, identifies whether or not the wire is in a normal state based on whether or not the detection value of the sensor is within a predetermined range.
  • the rotation of the rotating body can be stopped at a predetermined rotation angle, damage to components such as a sensor in the device is reduced.
  • the breakage of the wire can be reliably recognized, it is possible to avoid a burden on the elevator system due to raising and lowering the car in an overloaded state.
  • the present invention provides the above-described improved load detecting device, wherein a normal range of the wire state is determined by adding or subtracting a margin from a value detected by the sensor under an allowable load or under no load. .
  • a normal range of the wire state is determined by adding or subtracting a margin from a value detected by the sensor under an allowable load or under no load.
  • the rotation restricting member restricts the supply of rotational power to the rotating body by the rotational power supply unit connected to the tension side wire.
  • the present invention in the above-described improved load detection device, restricts the movable range of the tension spring as a turning power supply unit with a regulating wire as a rotation regulating member.
  • a regulating wire as a rotation regulating member.
  • the rotation restricting member restricts the amount of movement of the moving pulley to restrict the supply of rotational power to the rotating body.
  • the rotation restricting member is constituted by a first pulley base and a second pulley base having a slide mechanism.
  • the present invention is an elevator apparatus including the improved load detecting device described above. This makes it possible to reliably recognize the breakage of the wire, thereby avoiding the burden on the elevator system due to raising and lowering the car in an overloaded state. Further, since the rotation of the rotating body can be stopped at a predetermined rotation angle, damage to components such as a sensor in the load detection device is reduced.
  • the present invention relates to the improved elevator apparatus described above, wherein the control unit identifies the wire state based on the detection value of the sensor, and controls the elevation of the car based on the identification result. Things. This makes it possible to reliably recognize the breakage of the wire, thereby avoiding the burden on the elevator system caused by raising and lowering the car in an overloaded state.
  • the present invention is a control method of a load detecting device provided with a sensor for detecting a rotation angle of a rotating body which rotates in response to a load change, wherein the state of the wire is determined based on a detection value of the sensor. Is to judge. This makes it possible to reliably recognize the breakage of the wire, thereby avoiding the burden on the elevator system due to raising and lowering the car in an overloaded state.
  • the present invention in the above-mentioned improved method of controlling a load detecting device, identifies whether or not a wire is in a normal state based on whether or not a detected value of a sensor is within a predetermined range. This makes it possible to reliably recognize the breakage of the wire, thereby avoiding the burden on the elevator apparatus caused by raising and lowering the car in an overloaded state.
  • the normal range of the wire state is determined by adding or subtracting a margin from a value detected by the sensor under an allowable load or no load. It is a thing. As a result, wire breaks can be recognized with certainty, and the elevator system can be installed by raising and lowering the car in an overloaded state. The burden can be avoided.
  • FIG. 1 is a schematic diagram showing a load detection device according to Embodiment 1 of the present invention.
  • FIG. 2 is a graph showing a relationship between an output value of a sensor and a rotation angle of a rotating body in the load detection device of FIG.
  • FIG. 3 is a schematic diagram showing a state in which the working-side wire is broken in the load detection device of FIG.
  • FIG. 4 is a schematic diagram showing a load detection device according to Embodiment 2 of the present invention.
  • FIG. 5 is a schematic diagram showing a state in which the tension side wire is broken in the load detection device of FIG.
  • FIG. 6 is an enlarged view showing a moving pulley and a pulley stand in the load detection device of FIG.
  • FIG. 7 is a sectional view showing a section taken along line X_X of the moving pulley and the pulley stand of FIG. 6.
  • FIG. 8 is a schematic view showing a conventional load detecting device.
  • FIG. 9 is a schematic view showing another conventional load detecting device. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 is a schematic diagram showing a load detection device according to Embodiment 1 of the present invention.
  • Figure 2 is a schematic diagram showing a load detection device according to Embodiment 1 of the present invention.
  • FIG. 2 is a graph showing a relationship between an output value of a sensor and a rotation angle of a rotating body in the load detection device of FIG.
  • FIG. 3 is a schematic diagram showing a state in which the working-side wire is broken in the load detection device of FIG.
  • 1 is a base
  • 3 is a plurality of shirt loop rods
  • 5 is a spring seat.
  • , 7 and 8 are nuts
  • 10 is a plurality of shirt loop springs
  • 1 2 is a plurality of pulley stands supported by the shirt pull rod 3 and supports a moving pulley
  • 1 3 is a shirt loop rod 3
  • 15 is a frame supporting the load detecting device
  • 16 is a fixed pulley supported on the frame
  • 18 is one end supported by the detecting pulley and other Working-side wire whose end is supported by a fixed member via a moving pulley and a fixed pulley
  • 20 is a rod screw as a fixing member
  • 22 is a nut for positioning the rod screw
  • 30 is a frame 15 is a support shaft fixed to 5
  • 3 is a sensor such as an inclination sensor that is installed on the detection pulley and detects the rotation angle of the detection pulley.
  • 3 3 is a wire 18 based on the detection value of the sensor 32.
  • 40 is a control unit for judging the state
  • 35 is a detection pulley as a rotating body that rotates in conjunction with the movement of the operation side wire 18 and the tension side wire
  • 35 a is provided on the detection pulley 35.
  • Notch 3 7 fits into the notch 3 5 a and the working side wire 18 and 40 is a tension side wire whose one end is supported by the fixing bracket 37 and the other end is supported by a tension spring.
  • 42 is a direction in which no load is applied to the detection pulley 35.
  • a tension spring as a rotating power supply unit for applying a rotating power of 50, 50 is a fixing screw fixed to the frame 15, 52 is one end supported by the fixing screw 50 and the other end is a tension spring 4 2
  • the control wire supported by is shown.
  • the shirt clasp 3, the shirt clump spring 10, the spring seat 5, the nut 7, the base 1, and the like constitute a gland portion.
  • the girder is installed in the hoistway or in the machine room. Then, a tow rope (not shown) supported at the lower end of the shirt loop rod 3 suspends a not-shown car and a counter weight in the hoistway, and is driven by the hoist to drive the car and the counter weight. Are raised and lowered in opposite directions.
  • moving pulley 13, pulley stand 12, fixed pulley 16, detection pulley 35, sensor 32, working wire 18, tension wire 40, tension spring 42, regulating wire 52, fixing screw 50 etc. constitute the load detection device.
  • the working side wire 18 is wound around the moving pulley 13 and the fixed pulley 16 alternately. Then, the operation wire 18 gives the detecting pulley 35 a rotating force for rotating the detecting pulley 35 clockwise in the drawing. On the other hand, tension side wire 4 0 and the tension spring 42 apply a rotating force to rotate the detection pulley 35 counterclockwise. As a result, a predetermined tension is applied to the operation side wire 18.
  • the shirt loop rod 3 pushes down the shackle spring 10 and moves below the position shown in FIG. With the movement of the shirt loop rod 3, the positions of the moving pulley 13 and the pulley stand 12 also move downward. Thereby, the operation side wire 18 rotates the detection pulley 35 clockwise in the drawing. Then, the rotation angle of the detection pulley 35 is detected by the sensor 32, and the load in the car is detected from the detected value.
  • the detected value of the load of the car detected as described above is transferred to the control unit 33, and thereafter, the information is transferred to the drive unit of the hoist, the operation unit of the car, and the like. become.
  • FIG. 2 is a graph showing a relationship between an output value of a sensor and a rotation angle of a rotating body in the load detection device of FIG.
  • the horizontal axis represents the rotation angle of the detection pulley 35 in FIG. 1
  • the vertical axis represents the detection value (output value) of the sensor 32 in FIG.
  • the rotation angle of the detection pulley becomes 0 ° (BL in the figure), and FIG. As shown in the figure, the detection value of the sensor is 0.
  • the detection pulley rotates counterclockwise in FIG. 1, and the sensor has a detection value corresponding to NL in FIG.
  • the detection pulley rotates clockwise in Fig. 1, and the sensor corresponds to FL in Fig. 2. Detected value.
  • the permissible load is the upper limit of the load capacity of the car, which is determined in advance from the viewpoint of the structure of the elevator device and the regulations.
  • the load detecting device determines the state of the working-side wire and the tension-side wire based on the detection value of the sensor. Specifically, the rotation angle L2 obtained by subtracting the margin M2 from the rotation angle NL at no load and the margin M1 to the rotation angle FL under the allowable load
  • the range of 1 is defined as a normal detection range S in which the detection pulley operates normally without any abnormality such as breakage in the operation side wire and the tension side wire.
  • the rotation angle L2 obtained by subtracting the allowance M2 from the rotation angle NL when no load is applied and the rotation angle L1 obtained by adding the allowance Ml to the rotation angle FL when the allowable load is applied is applied.
  • the range outside of the range is defined as the abnormal detection range AS where the detection pulley does not operate normally due to the occurrence of an abnormality in the operation side wire or the tension side wire.
  • the normal detection range S and the abnormality detection range AS is based on the fact that the detection value of the sensor is a minimum value corresponding to the rotation angle L2 and a maximum value corresponding to the rotation angle L1. The determination is made by the control unit 33 in FIG. 1 as to whether or not to enter the range.
  • the information is transmitted from the control unit to the car, the hoist, etc., and a measure for preventing overloading the car is taken. Be taken. Specifically, for example, a hoist is controlled to suspend the elevation of the car, or an operation panel in the car is controlled to emit a warning sound. Thus, it is possible to prevent the operation of the elevator device when the load detection device has failed.
  • the allowance M2 on the no-load side is, for example, a value of 10 to 15% with respect to the weight when the car is empty.
  • the allowance Ml on the allowable load side is, for example, a value of 10 to 15% of the weight when the car is full.
  • FIG. 3 is a schematic diagram showing a state in which the working-side wire is broken in the load detection device of FIG.
  • the working-side wire 18 is broken at the break P1.
  • the operating wire loses the tension of rotating the detection pulley 35 clockwise, and the detection pulley 35 is moved counterclockwise by the tension spring 42 and the tension wire 40 (arrow in FIG. 3). Direction).
  • the control unit 33 recognizes the breakage of the operation side wire 18 as described above.
  • the turning power by the tension spring 42 is regulated according to the length of the regulation wire 52.
  • the rotation of the detection pulley 35 stops. That is, when the detection pulley 35 is rotating normally, as shown in FIG. 1, the regulating wire 52 is in a slack state.
  • the regulating wire 52 is in a stretched state.
  • the tension spring 42 one end of which is supported by the regulating wire 52, is maintained at a predetermined spring length without contracting to a free length. Then, at that position, the rotation of the detection pulley 35 stops.
  • the load detection device As described above, according to the load detection device according to the first embodiment, even if the wire wound around the detection pulley serving as the rotating body is broken, the car can be moved up and down in an overloaded state. There is no damage to components such as sensors, and high reliability can be obtained.
  • the tension spring 42 is used as the turning power supply unit.
  • the turning power supply unit according to the present invention is not limited to this.
  • a weight 45 can be used, or a torsion coil spring can be provided on the support shaft 30 of the detection pulley 35 and used as a rotating power supply member.
  • FIG. 4 is a schematic diagram showing a load detection device according to Embodiment 2 of the present invention.
  • FIG. 5 is a schematic diagram showing a state in which the tension side wire is broken in the load detection device of FIG.
  • FIG. 6 is an enlarged view showing a moving pulley and a pulley stand in the load detection device of FIG.
  • FIG. 7 is a sectional view showing a section taken along line X-X of the moving pulley and the pulley stand of FIG.
  • the load detecting device of the second embodiment is characterized in that the tension spring 42 has no regulating wire and that the pulley base relating to one of the moving pulleys is of a sliding type. It is different from form 1.
  • 1 is a base
  • 3 is a plurality of shirt loop rods
  • 5 is a spring seat
  • 7, 8, 22 is a nut
  • 10 is a plurality of shirt loop springs
  • 1 is a pulley stand
  • 1 is a pulley stand.
  • a plurality of movable pulleys, 14 is fixed to the first pulley base and a support shaft serving as the center of rotation of the movable pulley, 15 is a frame, 16 is a fixed pulley, 18 is a working side wire, 2 0 is a bar screw, 30 is a spindle, 3 2 is a sensor, 3 3 is a control unit, 3 5 is a detection burry, 3 5 a is a cutout, 3 7 is a fixing bracket, 40 is a tension side wire, 4 2 Is a tension spring, 62 is the first pulley table supporting the moving pulley 13, 62 a is a plurality of long holes as through holes provided in the first pulley table 62, and 63 is for screw penetration
  • the second pulley base that has a hole and allows the slide movement of the first pulley base 62, 65 is a screw that passes through the long hole 62a and the hole of the second pulley base 63, and 67 is Flat seat installed on the
  • one of the three pulleys 13 (the right pulley on the drawing) is the first pulley 6 2 and the second pulley 6 3. It is supported by a slide type pulley base consisting of
  • this slide type pulley is constituted as follows.
  • the male thread of the screw 65 and the collar 68 penetrate through the elongated hole 62 a of the first pulley base 62 and the hole of the second pulley base 63. I do.
  • a flat seat 67 having a diameter larger than the diameter of the elongated hole 62a is provided between the screw 65 and the collar 68.
  • a spring seat 73 is provided on the nut 70 side, between the nut 70 and the collar 68, 2 and a spring seat 73 are provided.
  • the length between both ends of the collar 68 is greater than the sum of the thickness of the first pulley base 62 and the thickness of the second pulley base 63.
  • the first pulley base 62 and the second pulley 63 can be smoothly slid and moved by the screws 65 and the nuts 70 without being tightened.
  • the operating side wire 18 is alternately wound around the moving pulley 13 and the fixed pulley 16 as in the first embodiment.
  • the detection pulley 35 rotates clockwise, and the sensor 32 detects the rotation angle.
  • the detection pulley 35 rotates counterclockwise, and the sensor 32 detects the rotation angle.
  • the first pulley base 62 is located at a position corresponding to the upper end of the movable range defined by the elongated hole 62a.
  • the control unit 33 when the detection value of the sensor 32 becomes larger than the maximum value or smaller than the minimum value, the control unit 33 The information is transmitted to the car and hoist, and measures are taken to prevent overloading of the car.
  • FIG. 5 is a schematic diagram showing a state in which the tension-side wire is broken in the load detection device of FIG.
  • the tension side wire 40 is broken at the break P2.
  • the tension side wire 40 loses the tension for rotating the detection pulley 35 counterclockwise, the detection pulley 35 is moved clockwise by the operation side wire 18 (in the direction of the arrow in FIG. 5). )).
  • the control unit 33 is moved to the tension side. You will notice a break in wire 40.
  • the moving pulley 13 associated with the slide-type pulley mechanism falls down in the shape of the elongated hole 62a, and the first pulley stand 62 stops at a position corresponding to the lower end of the movable range due to the elongated hole 62a. As a result, the rotation of the detection pulley 35 stops.
  • the load detection device similarly to the first embodiment, even if the wire wound around the detection pulley as the rotating body is broken, It does not move up and down in an overloaded state, and further, there is no damage to components such as sensors, and high reliability can be obtained.
  • the elongated hole 62a is provided on the first pulley base 62 side, and the protrusion including the screw 65 and the like is provided on the second pulley base 63 side.
  • the same effect as in the second embodiment can be obtained. Will be.
  • the slide type pulley base mechanism is not limited to the configuration shown in the second embodiment.
  • a stud is provided on the second pulley base 63, and the stud is connected to the elongated hole 62a. It is good also as composition which combines.
  • the position where the slide type pulley base mechanism is installed is not limited to the arrangement shown in the second embodiment, and for example, even if the slide type pulley base mechanism is provided for the moving pulley 13 in the center of the paper. Good.
  • the acceleration sensor provided on the detection pulley 35 is used as the sensor 32, but the sensor in the present invention is not limited to this.
  • the sensor applied to the present invention may be any sensor that can detect the rotation angle of the detection pulley.
  • a sensor of the present invention is configured by a so-called mouth encoder, in which a plurality of slits are provided on the rotation surface of the detection pulley, and the displacement of the slit is detected by an optical sensor installed outside the detection pulley. Is also good.
  • both the rotation regulating members may be collectively provided in one load detection device.
  • the rotation restricting member according to the present invention is not limited to the above embodiments.
  • a protrusion may be provided at a predetermined position on the rotation surface of the detection pulley 35, and the stopper member may be engaged with the protrusion.
  • the rotation angle of the detection pulley 35 can be regulated.
  • the present invention is not limited to the above embodiments, and each embodiment may be appropriately changed within the scope of the technical idea of the present invention, in addition to those suggested in each embodiment. It is clear. Further, the number, position, shape, and the like of the above-mentioned constituent members are not limited to the above-described embodiment, and can be set to a number, position, shape, or the like suitable for carrying out the present invention.
  • a load detection device is a load detection device including a sensor that detects a rotation angle of a rotating body that rotates in response to a load change, and based on a detection value of the sensor. To determine the state of the wire. This makes it possible to reliably recognize the breakage of the wire, and is useful as a load detection device that can avoid the burden on the elevator device due to raising and lowering the car in an overloaded state.
  • the load detection device is for discriminating whether the wire is in a normal state or an abnormal state depending on whether or not the detection value of the sensor is within a predetermined range. This makes it possible to reliably recognize the breakage of the wire, and is useful as a load detection device capable of avoiding the burden on the elevator system by raising and lowering the car in an overloaded state.
  • a normal range of the wire state is determined by adding or subtracting a margin from a value detected by a sensor under an allowable load or under no load. This makes it possible to reliably recognize the breakage of the wire, and thus is useful as a load detection device capable of avoiding the burden on the elevator apparatus caused by raising and lowering the car in an overloaded state.
  • a load detection device is a load detection device including a rotating body that rotates in response to a load change, and includes a rotation regulating member that regulates a rotation range of the rotating body. is there. As a result, even if the wire wound around the rotating body is broken, the rotation of the rotating body can be stopped at a predetermined rotation angle, thereby reducing damage to components such as sensors in the device. Useful as a load detector.
  • the load detection device determines the state of the wire based on a detection value of a sensor that detects the rotation angle of the rotating body. Accordingly, since the rotation of the rotating body can be stopped at a predetermined rotation angle, it is useful as a load detection device that reduces damage to components such as sensors in the device. Furthermore, since the wire breakage can be reliably recognized, it is useful as a load detection device that can avoid the burden on the elevator device due to raising and lowering the car in an overloaded state.
  • the load detection device is for discriminating whether the wire is in a normal state or an abnormal state depending on whether or not the detection value of the sensor is within a predetermined range.
  • the rotation of the rotating body can be stopped at a predetermined rotation angle, it is useful as a load detection device that reduces damage to components such as sensors in the device.
  • wire breakage can be reliably recognized, it is useful as a load detection device that can avoid the burden on the elevator system by raising and lowering the car in an overloaded state.
  • a normal range of the wire state is determined by adding or subtracting a margin from a value detected by a sensor under an allowable load or under no load. Accordingly, since the rotation of the rotating body can be stopped at a predetermined rotation angle, it is useful as a load detection device in which damage to components such as sensors in the device is reduced. In addition, since wire breakage can be reliably recognized, it is useful as a load detection device that can avoid the burden on elevator equipment due to raising and lowering the car in an overloaded state.
  • the rotation restricting member restricts the supply of the rotating power to the rotating body by the rotating power supply unit connected to the tension side wire. Accordingly, since the rotation of the rotating body can be stopped at a predetermined rotation angle, it is useful as a load detecting device in which damage to components such as sensors in the device is reduced. Further, in the load detection device according to the present invention, the movable range of the tension spring as the turning power supply unit is limited by the regulation wire as the rotation regulating member. Accordingly, since the rotation of the rotating body can be stopped at a predetermined rotation angle, it is useful as a load detection device that reduces damage to components such as sensors in the device.
  • the rotation restricting member restricts the amount of movement of the moving pulley to restrict the supply of rotational power to the rotating body. Accordingly, since the rotation of the rotating body can be stopped at a predetermined rotation angle, it is useful as a load detection device that reduces damage to components such as sensors in the device.
  • the rotation restricting member includes a first pulley base and a second pulley base having a slide mechanism. Accordingly, since the rotation of the rotating body can be stopped at a predetermined rotation angle, it is useful as a load detection device that reduces damage to components such as sensors in the device.
  • an elevator apparatus is an elevator apparatus provided with the improved load detecting device described above. This makes it possible to reliably recognize the breakage of the wire, and is useful as an elevator device that can avoid the burden on the device due to raising and lowering the car in an overloaded state. Further, since the rotation of the rotating body can be stopped at a predetermined rotation angle, it is useful as an elevator device in which damage to components such as sensors in the load detection device is reduced.
  • the elevator apparatus identifies a wire state by a control unit based on a detection value of a sensor, and controls elevation of the car based on the identification result. This makes it possible to reliably recognize the breakage of the wire, and is useful as an elevator system that can avoid the load on the device caused by raising and lowering the car in an overloaded state.
  • a control method of a load detection device is a control method of a load detection device including a sensor that detects a rotation angle of a rotating body that rotates in response to a load change.
  • the state of the wire is determined based on the detection value of the sensor. This makes it possible to reliably recognize the breakage of the wire, and is useful as a control method of a load detection device capable of avoiding a burden on the elevator device by raising and lowering the car in an overloaded state.
  • the control method of the load detection device according to the present invention is to identify whether the wire is in a normal state or an abnormal state based on whether or not the detection value of the sensor is within a predetermined range. . This makes it possible to reliably recognize the breakage of the wire, and is useful as a control method of a load detection device that can avoid a burden on the elevator apparatus due to raising and lowering the car in an overloaded state.
  • a normal range of the wire state is determined by adding or subtracting a margin from a value detected by the sensor when an allowable load is applied or when no load is applied. This makes it possible to reliably recognize the breakage of the wire, and is useful as a control method of a load detection device capable of avoiding the burden on the elevator apparatus caused by raising and lowering the car in an overloaded state.

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

Cette invention concerne un dispositif de détection de charge dont le détecteur (32) est conçu pour détecter l'angle de rotation d'un corps rotatif (35) qui tourne en réponse à des variations de charge, l'état des fils (18, 40) étant déterminé en fonction des valeurs détectées par le détecteur (32). Il est ainsi possible de détecter des ruptures des fils (18, 40) de manière fiable et donc d'éviter une surcharge pour le dispositif élévateur par suite de levages/abaissements dans le cas d'un chariot sous pleine charge.
PCT/JP2001/011183 2001-12-20 2001-12-20 Dispositif de detection de charge, procede de commande et dispositif elevateur WO2003053836A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PCT/JP2001/011183 WO2003053836A1 (fr) 2001-12-20 2001-12-20 Dispositif de detection de charge, procede de commande et dispositif elevateur
JP2003554560A JP4137795B2 (ja) 2001-12-20 2001-12-20 荷重検出装置及びその制御方法、エレベータ装置
DE60141306T DE60141306D1 (de) 2001-12-20 2001-12-20 Lasterfassungsvorrichtung und steuerverfahren dafür sowie aufzugsvorrichtung
CNB018227449A CN1297464C (zh) 2001-12-20 2001-12-20 负荷检测装置及具有所述负荷检测装置的电梯装置
KR1020037010690A KR100574434B1 (ko) 2001-12-20 2001-12-20 하중 검출 장치 및 그 제어 방법
EP01275075A EP1464607B1 (fr) 2001-12-20 2001-12-20 Dispositif de detection de charge, procede de commande et dispositif elevateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2001/011183 WO2003053836A1 (fr) 2001-12-20 2001-12-20 Dispositif de detection de charge, procede de commande et dispositif elevateur

Publications (1)

Publication Number Publication Date
WO2003053836A1 true WO2003053836A1 (fr) 2003-07-03

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PCT/JP2001/011183 WO2003053836A1 (fr) 2001-12-20 2001-12-20 Dispositif de detection de charge, procede de commande et dispositif elevateur

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EP (1) EP1464607B1 (fr)
JP (1) JP4137795B2 (fr)
KR (1) KR100574434B1 (fr)
CN (1) CN1297464C (fr)
DE (1) DE60141306D1 (fr)
WO (1) WO2003053836A1 (fr)

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WO2005105648A1 (fr) * 2004-04-30 2005-11-10 Mitsubishi Denki Kabushiki Kaisha Appareil élévateur
WO2005105650A1 (fr) * 2004-04-28 2005-11-10 Mitsubishi Denki Kabushiki Kaisha Ascenseur
WO2017033322A1 (fr) * 2015-08-27 2017-03-02 三菱電機株式会社 Dispositif d'ascenseur

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KR100600997B1 (ko) * 2004-09-14 2006-07-19 주식회사 고려호이스트 더블드럼형 양중기의 과부하 방지장치
SG178303A1 (en) 2009-08-21 2012-03-29 Toray Industries Fresh water generator
WO2011077815A1 (fr) 2009-12-25 2011-06-30 東レ株式会社 Système de production d'eau et son procédé de fonctionnement
EP3191394B1 (fr) 2014-09-12 2018-10-31 Otis Elevator Company Système de pesage de charge d'ascenseur
CN105314436A (zh) * 2015-11-25 2016-02-10 南通康禾新材料有限公司 一种大卷装布用外侧卷取装置
CN112161872B (zh) * 2020-08-27 2024-03-29 芜湖航翼集成设备有限公司 一种新型飞机钢索专用卧式自动拉力检测装置

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JPS4511436Y1 (fr) * 1965-03-31 1970-05-21
JPH028176A (ja) * 1988-06-24 1990-01-11 Mitsubishi Electric Corp エレベーターの荷重検出装置

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005105650A1 (fr) * 2004-04-28 2005-11-10 Mitsubishi Denki Kabushiki Kaisha Ascenseur
JPWO2005105650A1 (ja) * 2004-04-28 2007-12-13 三菱電機株式会社 エレベータ装置
CN100445193C (zh) * 2004-04-28 2008-12-24 三菱电机株式会社 电梯装置
US7703578B2 (en) 2004-04-28 2010-04-27 Mitsubishi Denki Kabushiki Kaisha Elevator apparatus
JP4732342B2 (ja) * 2004-04-28 2011-07-27 三菱電機株式会社 エレベータ装置
WO2005105648A1 (fr) * 2004-04-30 2005-11-10 Mitsubishi Denki Kabushiki Kaisha Appareil élévateur
WO2017033322A1 (fr) * 2015-08-27 2017-03-02 三菱電機株式会社 Dispositif d'ascenseur
JPWO2017033322A1 (ja) * 2015-08-27 2017-12-28 三菱電機株式会社 エレベータ装置

Also Published As

Publication number Publication date
KR100574434B1 (ko) 2006-04-27
JPWO2003053836A1 (ja) 2005-04-28
CN1297464C (zh) 2007-01-31
EP1464607A1 (fr) 2004-10-06
CN1492833A (zh) 2004-04-28
EP1464607B1 (fr) 2010-02-10
KR20030079996A (ko) 2003-10-10
DE60141306D1 (de) 2010-03-25
EP1464607A4 (fr) 2008-10-29
JP4137795B2 (ja) 2008-08-20

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