WO2012035641A1 - エレベータ用調速機 - Google Patents
エレベータ用調速機 Download PDFInfo
- Publication number
- WO2012035641A1 WO2012035641A1 PCT/JP2010/066126 JP2010066126W WO2012035641A1 WO 2012035641 A1 WO2012035641 A1 WO 2012035641A1 JP 2010066126 W JP2010066126 W JP 2010066126W WO 2012035641 A1 WO2012035641 A1 WO 2012035641A1
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- WIPO (PCT)
- Prior art keywords
- sheave
- stopper
- speed
- flyweight
- governor
- Prior art date
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Classifications
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- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
-
- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
Definitions
- This invention relates to a governor for an elevator.
- the present invention has been made in order to solve the above-described problems, and its object is to have a simple configuration and to prevent the deterioration of reliability due to generation of vibration / noise and wear of parts, and to depend on the rotation direction.
- the present invention is to provide a governor for an elevator capable of realizing an overspeed detection mechanism with added characteristics.
- a rope interlocking with an elevator lifting body is wound around, and the rotational speed in one direction is changed according to the lifting speed of the lifting body, and the lowering speed of the lifting body
- a sheave that changes the rotational speed in the other direction according to the sheave, and provided on the side surface of the sheave, the amount of movement of the sheave radially outward is increased or decreased as the rotational speed of the sheave is increased or decreased.
- the flyweight When rotating in a predetermined direction, the flyweight rotates relative to the sheave so as to be arranged on the radially outer side of the flyweight, and the flyweight moves outward in the radial direction beyond the predetermined amount.
- a rotational position detecting means for detecting the rotational position of the sheave; an object detecting means that is provided close to the sheave and detects the stopper when the stopper approaches; and the object detecting means Determining means for determining the position of the stopper relative to the sheave based on the rotational position of the sheave at the time of detection of the stopper.
- FIG. 2 is a cross-sectional view taken along line AA in FIG. It is a front view which shows the principal part of the governor for elevators in Embodiment 1 of this invention. It is a front view which shows the principal part of the governor for elevators in Embodiment 1 of this invention. It is a front view which shows the principal part of the governor for elevators in Embodiment 1 of this invention. It is a front view which shows the principal part of the governor for elevators in Embodiment 1 of this invention. It is a block diagram of the malfunction detection apparatus utilized for the governor for elevators in Embodiment 1 of this invention. It is a block diagram of the malfunction detection apparatus utilized for the governor for elevators in Embodiment 2 of this invention.
- an elevator hoistway is composed of a space extending in the vertical direction across each floor of a building.
- a machine room is provided in the upper part of the hoistway.
- a hoisting machine is provided in the machine room.
- a hoisting rope is wound around the hoisting machine.
- An elevator basket is suspended at one end of the hoisting rope.
- a weight is suspended from the other end of the hoisting rope. Then, the rotation of the hoisting machine is controlled by the control device. Following the rotation of the hoist, the cage and weight move up and down at a set speed.
- an emergency stop device is provided at the bottom of the cage.
- An endless governor rope is connected to the emergency stop device via an arm.
- the curved portion at the lower end of the governor rope is wound around a tension wheel.
- the curved portion at the upper end of the governor rope is wound around a sheave of a governor provided in a machine room or the like.
- FIG. 1 is a front view of a governor for an elevator according to Embodiment 1 of the present invention.
- FIG. 2 is a cross-sectional view taken along line AA in FIG.
- 1 is a governor.
- the governor 1 includes a sheave 2.
- the sheave 2 is pivotally supported on the main shaft 3.
- a governor rope 4 is wound around the sheave 2.
- the governor rope 4 is attached to the basket endlessly.
- the governor rope 4 is interlocked with the basket.
- the governor rope 4 rotates the sheave 2 according to the raising and lowering of the cage. That is, the sheave 2 changes the rotational speed in one direction according to the ascending speed of the cage, and changes the rotational speed in the other direction according to the descending speed of the cage.
- a pair of disk-type flyweights 5 are rotatably provided on the side surface of the sheave 2 via pins 6. Both flyweights 5 increase or decrease the amount of movement of the sheave 2 radially outward along the side surface of the sheave 2 as the rotational speed of the sheave 2 increases or decreases. Both flyweights 5 are connected by a link 7. Thereby, the rotation angles of both flyweights 5 become the same.
- a balance spring 9 is provided at one end of the flyweight 5 via a link 8.
- the balance spring 9 constantly urges one of the flyweights 5 toward the center side of the sheave 2.
- the link 8 is provided with a spring force adjusting nut 10.
- the spring force adjusting nut 10 adjusts the urging force of the balance spring 9.
- a dog 11 is provided toward the radially outer side of the sheave 2.
- An operating cam 12 is provided in the vicinity of one side of the sheave 2.
- the operating cam 12 is provided in the overspeed switch 13. When the operating cam 12 moves up and down, the overspeed switch 13 operates.
- a rope catch 14 is provided close to the governor rope 4 on the side to which the cage is attached.
- the rope catch 14 is hooked on the lower end of the hook 15 and suspended.
- the hook 15 is pivotally supported at the center via a pin 16.
- a fixed shoe 17 is provided on the opposite side of the rope catch 14. Thereby, the governor rope 4 is surrounded by the rope catch 14 and the fixed shoe 17 below one side of the sheave 2.
- a stopper 18 is provided.
- the main body of the stopper 18 is rotatably provided on the main shaft 3.
- the main body of the stopper 18 is provided with a pair of locking notches 19.
- the sheave 2 center side ends of both locking notches 19 are connected by a connecting notch 20.
- the connection notch 20 is formed in an arc shape with the main shaft 3 as the center.
- One end 22 of the lever 21 is inserted so as to be movable along the connection notch 20.
- the other end 23 of the lever 21 is pivotally supported on the sheave 2.
- the pin 24 is provided on the sheave 2 so as to protrude toward the stopper 18 and closer to the main shaft 3 than the lever 21.
- the lever 21 is also provided with a pin 25 protruding toward the sheave 2 side.
- a tension spring 26 is provided between the pins 24 and 25. The tension spring 26 always urges the lever 21 toward the center side of the sheave 2.
- FIGS. 3 to 5 are front views showing main parts of the elevator governor according to the first embodiment of the present invention.
- the flyweight 5 receives a centrifugal force according to the rotational speed of the sheave 2. While the cage moves up and down within the rated speed, the force by the balance spring 9 is larger than the centrifugal force applied to the flyweight 5. For this reason, the relative position of the flyweight 5 and the sheave 2 does not change from the initial setting state.
- the overspeed switch 13 When the raising / lowering speed of the basket reaches the first overspeed detection speed, the dog 11 at the tip of the flyweight 5 comes into contact with the operating cam 12. Due to this contact, the overspeed switch 13 operates. That is, the operating cam 12 and the overspeed switch 13 function as a detector that detects overspeed of the sheave 2 when the flyweight 5 moves outward by a predetermined amount regardless of whether the cage is raised or lowered. . The operation of the overspeed switch 13 cuts off the power to the elevator hoist and the brake. This shut-off usually stops the basket.
- the mass of the lever 21 and the spring multiplier of the tension spring 26 are such that the lever 21 moves radially outward of the sheave 2. Is decided.
- the stopper 18 is pushed by the one end 22 of the lever 21 in the rotational direction of the sheave 2. Thereby, the stopper 18 rotates integrally with the sheave 2.
- the ascending direction of the basket exceeds the rated speed, and the flyweight 5 tries to move outward in the radial direction of the sheave 2.
- the protruding end of the stopper 18 is disposed on the radially outer side of the sheave 2 with respect to the flyweight 5. For this reason, the flyweight 5 interferes with the protruding end of the stopper 18 when it moves outward beyond a predetermined amount.
- the flyweight 5 can hardly move outward in the radial direction of the sheave 2. In other words, even if the raising speed of the basket reaches the first overspeed detection speed, the dog 11 at the tip of the flyweight 5 does not contact the operating cam 12. For this reason, the overspeed switch 13 does not operate.
- the stopper 18 tries to continue to rotate at a substantially constant speed according to the law of inertia. For this reason, as shown in FIG. 4, the stopper 18 rotates relative to the sheave 2. Subsequently, when the basket accelerates in the downward direction, the stopper 18 is pushed by the one end 22 of the lever 21. Thereby, the stopper 18 rotates integrally with the sheave 2.
- FIG. 6 is a configuration diagram of a malfunction detection device used in the elevator governor according to Embodiment 1 of the present invention.
- an encoder 27 is provided in the vicinity of the main shaft 3 of the governor 1.
- the encoder 27 functions as a rotational position detecting means for outputting a pulse signal corresponding to the rotational direction of the sheave 2 when the sheave 2 reaches a predetermined rotational position.
- the pulse signal is input to the malfunction detection device 28.
- the malfunction detection device 28 includes a proximity sensor unit 29 and a stopper position detection unit 30.
- the proximity sensor unit 29 is disposed immediately above the sheave 2.
- the proximity sensor unit 29 includes an overcurrent type, an optical type, a capacitance type distance sensor, or the like.
- the proximity sensor unit 29 sets a lower predetermined range as a detection region.
- the proximity sensor unit 29 functions as an object detection unit that outputs a detection signal when an object is present in the detection area.
- the stopper position detector 30 stores in advance the angular position information of the stopper 18 when the speed governor 1 is rotating in the upward direction.
- the stopper position detector 30 stores in advance the angular position information of the stopper 18 when the speed governor 1 is rotating in the downward direction.
- the stopper position detection unit 30 functions as a determination unit that determines whether or not the stopper 18 is at a predetermined position based on the rotational position of the sheave 2 when the proximity sensor unit 29 detects the stopper 18.
- the stopper 18 when the sheave 2 is rotating in a predetermined direction of both rotation directions, the stopper 18 is configured such that the flyweight 5 exceeds the predetermined amount in the radial direction of the sheave 2. To move to. For this reason, it is possible to realize an overspeed detection mechanism with dependency on the rotational direction while preventing a decrease in reliability due to generation of vibration / noise and wear of parts with a simple configuration.
- the overspeed detection mechanism to which the rotation direction dependency is added can be realized more stably.
- the threshold value of the rotational speed of the sheave 2 that is set so that the one end 22 of the lever 21 moves radially outward of the sheave 2 is about half of the rated speed that is the lower of the cage ascending and descending speed. It is preferable to set to. In this case, unintentional overspeed detection can be effectively prevented. In order to detect overspeed only when the car is traveling in the upward direction, the flyweight 5 is not prevented from moving when the sheave 2 is rotating in the upward direction of the car.
- the stopper 18 may be configured.
- the malfunction detection device 28 determines the position of the stopper 18. For this reason, the malfunction of the stopper 18 can be detected.
- FIG. FIG. 7 is a configuration diagram of a malfunction detection device used in the elevator governor according to Embodiment 2 of the present invention.
- symbol is attached
- Reference plates 31a and 31b are provided on the disk of the sheave 2 according to the second embodiment.
- the reference plates 31a and 31b are arranged at positions shifted by 180 degrees with respect to the center of the sheave 2.
- the stopper 18a that has operated correctly is located at a position that is offset by 30 degrees from the reference plate 31a (a position that is offset by 150 degrees from the reference plate 31b) with respect to the center of the sheave 2. Is done.
- the stopper 18b that has operated correctly is disposed at a position that is offset by 30 degrees from the reference plate 31b with respect to the center of the sheave 2 (a position that is offset by 150 degrees from the reference plate 31a).
- the stopper 18a that has been operated correctly is shifted by 60 degrees from the reference plate 31a with respect to the center of the sheave 2 (120 ° from the reference plate 31b). Position). Further, the stopper 18b that has operated correctly is disposed at a position that is offset by 60 degrees from the reference plate 31b (a position that is shifted by 120 degrees from the reference plate 31a) with the center of the sheave 2 as a reference.
- the malfunction detection device 32 includes a proximity sensor unit 33, a stopper position detection unit 34, and a stopper position determination unit 35.
- the proximity sensor unit 33 detects the stoppers 18a and 18b and the reference plates 31a and 31b when the stoppers 18a and 18b and the reference plates 31a and 31b approach each other.
- the stopper position detector 34 detects the positions of the stoppers 18a and 18b with respect to the sheave 2 based on the difference in detection timing between the reference plates 31a and 31b and the stoppers 18a and 18b.
- the stopper position determination unit 35 determines the rotation direction of the sheave 2 based on the pulse output of the encoder 27.
- the stopper position determination unit 35 determines whether or not the stoppers 18 a and 18 b are present at correct positions with respect to the rotation direction of the sheave 2.
- FIG. 8 is a diagram for explaining an example of the signal output of the encoder 27 used in the elevator governor according to the second embodiment of the present invention.
- the horizontal axis in FIG. 8 is time.
- the vertical axis in FIG. 8 is the output of the proximity sensor unit 33.
- FIG. 8 shows the case where the sheave 2 is rotating in the downward direction.
- the reference plate 31a is detected.
- the time interval at this time is assumed to be t0.
- the stopper 18b is detected.
- the time interval at this time is assumed to be t1.
- the sheave 2 rotates 60 degrees over time t0
- the reference plate 31b is detected.
- the stopper 18a is detected again.
- the stopper 18a is detected when the sheave 2 rotates 30 degrees from the detection position of the reference plate 31a.
- the time interval at this time is T0.
- the reference plate 31b is detected.
- the time interval at this time is T1.
- the stopper 18b is detected.
- the sheave 2 rotates 150 degrees over time T1 the reference plate 31a is detected again.
- whether or not the stoppers 18a and 18b are present at the correct positions is determined based on the rotational position and the rotational direction of the sheave 2 when the stoppers 18a and 18b are detected. . For this reason, it is possible to reliably detect the malfunction of the stoppers 18a and 18b.
- the positions of the stoppers 18a and 18b with respect to the sheave 2 are determined based on the difference between the detection timings of the reference plates 31a and 31b and the stoppers 18a and 18b. For this reason, it is possible to reliably detect the malfunction of the stoppers 18a and 18b with a simple configuration.
- the number of object detections by the proximity sensor unit 33 during one rotation of the sheave 2 is uniquely determined by the number of the stoppers 18a and 18b and the reference plates 31a and 31b.
- signal output means for outputting a malfunction signal when the number of object detections at the proximity sensor unit 33 during one rotation of the sheave 2 is different from the total number of the stoppers 18a, 18b and the reference plates 31a, 31b. May be provided. Based on the malfunction signal, it can be determined that a malfunction of the proximity sensor unit 33 or an abnormal operation of the governor 1 has occurred.
- a prohibiting unit that prohibits the determination of the positions of the stoppers 18a and 18b may be provided. In this case, unnecessary detection operation can be suppressed.
- a signal output means for outputting a malfunction signal when the rotational speed of the sheave 2 is faster than the speed at which the flyweight 5 is moved radially outward by a predetermined amount and the stoppers 18a, 18b are not in the correct positions. May be provided. Based on the malfunction signal, it can be determined that malfunction of the stoppers 18a and 18b or malfunction detection of the malfunction detection device 32 has occurred.
- the malfunction signal may include information for operating a brake provided in the hoist that drives the elevator. If the elevator control device operates the brake based on the malfunction signal, the elevator can be stopped. Thereby, the safety
- FIG. 9 is a front view showing a main part of an elevator governor according to Embodiment 3 of the present invention.
- symbol is attached
- the notch 19 for locking of the stopper 18, the connecting notch 20, the lever 21, the pins 24 and 25, and the tension spring 26 are provided.
- a plurality of locking notches 19, connecting notches 20, levers 21, pins 24 and 25, and tension springs 26 of the stopper 18 are provided symmetrically with respect to the main shaft 3.
- the load on the lever 21 is reduced. For this reason, the reliability of the governor 1 can be improved.
- FIG. 10 is a front view of an elevator governor according to Embodiment 4 of the present invention.
- FIG. 11 is a sectional view taken along line BB in FIG.
- symbol is attached
- the speed governor 1 according to the fourth embodiment is different from the speed governor 1 according to the first embodiment in the configuration of the flyweight, the shape of the stopper 18, and the like. Hereinafter, the governor 1 of Embodiment 4 is demonstrated.
- reference numeral 36 denotes a pair of linear motion bearings.
- the linear motion bearing 36 is attached to the side surface of the sheave 2 via the fixed portion 37.
- a flyweight 38 is inserted into the linear motion bearing 36.
- the linear motion bearing 36 may be a sliding bearing using sliding friction, or a rolling bearing using rolling friction of a ball or a roller.
- the flyweight 38 is provided with a spring force adjusting nut 39.
- a balance spring 40 is provided between the spring force adjusting nut 39 and the fixing portion 37. The balance spring 40 constantly urges the flyweight 38 toward the center side of the sheave 2.
- the flyweight 38 receives a centrifugal force corresponding to the rotational speed of the sheave 2. While the cage moves up and down within the rated speed, the force by the balance spring 40 is larger than the centrifugal force applied to the flyweight 38. For this reason, the relative position of the flyweight 38 and the sheave 2 does not change from the initial setting state.
- the overspeed switch 13 When the car ascending / descending speed reaches the first overspeed detection speed, the tip of the flyweight 38 comes into contact with the operating cam 12. Due to this contact, the overspeed switch 13 operates. In other words, the operating cam 12 and the overspeed switch 13 function as a detector for detecting overspeed of the sheave 2 when the flyweight 38 moves outward by a predetermined amount regardless of whether the cage is raised or lowered. . The operation of the overspeed switch 13 cuts off the power to the elevator hoist and the brake. This shut-off usually stops the basket.
- the flyweight 38 further moves outward in the radial direction of the sheave 2. To do. By this movement, the tip end of the flyweight 38 comes into contact with the upper end of the hook 15 from the operation cam 12 side. By this contact, the hook 15 rotates around the pin 16. The lower end of the hook 15 is detached from the rope catch 14. By this rotation, the rope catch 14 falls due to gravity.
- FIG. FIG. 12 is a view corresponding to FIG. 11 of an elevator governor according to Embodiment 5 of the present invention.
- symbol is attached
- one overspeed detection mechanism is provided.
- two overspeed detection mechanisms are provided.
- the overspeed detection mechanisms operate independently of each other.
- the speed governor 1 of Embodiment 5 is demonstrated using FIG.
- reference numeral 41 denotes a rotating body.
- the rotating body 41 is fixed to one side surface of the sheave 2. That is, the rotating body 41 has a function of rotating together with the sheave 2.
- One side of the overspeed detection mechanism is provided on the other side of the sheave 2.
- One of the overspeed detection mechanisms is provided with a stopper 18 similar to that of the third embodiment.
- One side of the rotating body 41 is provided with the other of the overspeed detection mechanism.
- the other of the overspeed detection mechanism is not provided with a stopper 18.
- One side of the overspeed detection mechanism is set according to the rated speed in the car lowering direction.
- One of the overspeed detection mechanisms is restricted by the stopper 18 when the car is raised before it becomes faster than the rated speed in the car lowering direction.
- the other of the overspeed detection mechanism is set in accordance with the rated speed in the basket raising direction.
- the governor 1 is provided in an elevator in which the basket ascending speed is faster than the descending speed.
- overspeed detection can be performed in accordance with each of the ascending speed and the descending speed in an elevator in which the cage ascending speed is faster than the descending speed.
- the detection speed of the overspeed detection mechanism whose operation is restricted by the stopper 18 is set according to the rated speed in the direction of raising the car, and the stopper 18 What is necessary is just to set the speed governor 1 which is not restrict
- the rotation direction dependency is added while preventing a decrease in reliability due to generation of vibration / noise and wear of parts with a simple configuration. It can be used for an elevator that realizes an overspeed detection mechanism.
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Abstract
Description
一般に、エレベータの昇降路は、建築物の各階を跨った鉛直方向に延びる空間からなる。昇降路上部には、機械室が設けられる。機械室には、巻上機が設けられる。巻上機には、巻上ロープが巻回される。巻上ロープの一端には、エレベータのカゴが吊持される。一方、巻上ロープの他端には、オモリが吊持される。そして、巻上機の回転は、制御装置に制御される。巻上機の回転に追従して、カゴ及びオモリが設定された速度で昇降する。
図1及び図2において、1は調速機である。調速機1は、綱車2を備える。綱車2は、主軸3に軸支される。綱車2には、調速機ロープ4が巻き掛けられる。
図3~図5はこの発明の実施の形態1におけるエレベータ用調速機の要部を示す正面図である。
綱車2がカゴの昇降と同期して回転すると、綱車2の回転速度に応じた遠心力をフライウエイト5が受ける。カゴが定格速度以内で昇降している間は、フライウエイト5に加わる遠心力よりも、平衡ばね9による力の方が大きい。このため、フライウエイト5と綱車2との相対位置は、初期設定状態から変化しない。
図6はこの発明の実施の形態1におけるエレベータ用調速機に利用される誤動作検出装置の構成図である。
図7はこの発明の実施の形態2におけるエレベータ用調速機に利用される誤動作検出装置の構成図である。なお、実施の形態1と同一又は相当部分には同一符号を付して説明を省略する。
図8はこの発明の実施の形態2におけるエレベータ用調速機に利用されるエンコーダ27の信号出力の例を説明するための図である。図8の横軸は時間である。図8の縦軸は近接センサ部33の出力である。
することができる。
図9はこの発明の実施の形態3におけるエレベータ用調速機の要部を示す正面図である。なお、実施の形態1と同一又は相当部分には同一符号を付して説明を省略する。
図10はこの発明の実施の形態4におけるエレベータ用調速機の正面図である。図11は図10のB-B線における断面図である。なお、実施の形態1と同一又は相当部分には同一符号を付して説明を省略する。
綱車2がカゴの昇降と同期して回転すると、綱車2の回転速度に応じた遠心力をフライウエイト38が受ける。カゴが定格速度以内で昇降している間は、フライウエイト38に加わる遠心力よりも、平衡ばね40による力の方が大きい。このため、フライウエイト38と綱車2との相対位置は、初期設定状態から変化しない。
図12はこの発明の実施の形態5におけるエレベータ用調速機の図11相当図である。なお、実施の形態4と同一又は相当部分には同一符号を付して説明を省略する。
6 ピン、 7 リンク、 8 リンク、 9 平衡ばね、
10 ばね力調整用ナット、 11 ドグ、 12 作動カム、 13 過速スイッチ、
14 ロープキャッチ、 15 フック、 16 ピン、 17 固定シュー、
18、18a、18b ストッパ、 19 係止用切り欠き部、
20 連結切り欠き部、 21 レバー、 22 一端、 23 他端、 24 ピン、
25 ピン、 26 引きばね、 27 エンコーダ、 28 誤動作検出装置、
29 近接センサ部、 30 ストッパ位置検出部、 31、31a、31b 基準板、
32 誤動作検出装置、 33 近接センサ部、 34 ストッパ位置検出部、
35 ストッパ位置判定部、 36 直線運動用軸受、 37 固定部、
38 フライウエイト、 39 ばね力調整用ナット、 40 平衡ばね、
41 回転体
Claims (7)
- エレベータの昇降体と連動するロープが巻き掛けられ、前記昇降体の上昇速度に応じて一方向への回転速度を変化させるとともに、前記昇降体の下降速度に応じて他方向への回転速度を変化させる綱車と、
前記綱車の側面に設けられ、前記綱車の回転速度の増減に伴って、前記綱車の径方向外側への移動量を増減させるフライウエイトと、
前記フライウエイトが所定量だけ前記径方向外側に移動したときに、前記綱車の過速検出を行う検出器と、
前記綱車に設けられ、前記綱車が両回転方向のうち所定の方向に回転する場合に、前記フライウエイトの前記径方向外側に配置されるように前記綱車に対して回転移動し、前記フライウエイトが前記所定量以上に前記径方向外側へ移動することを防止するストッパと、
前記綱車の回転位置を検出する回転位置検出手段と、
前記綱車に近接して設けられ、前記ストッパが接近した場合に、前記ストッパを検出する物体検出手段と、
前記物体検出手段による前記ストッパの検出時における前記綱車の回転位置に基づいて、前記綱車に対する前記ストッパの位置を判定する判定手段と、
を備えたことを特徴とするエレベータ用調速機。 - 前記回転位置検出手段は、前記綱車の回転方向に応じたパルスを出力し、
前記判定手段は、前記パルスに基づいて前記綱車の回転方向を判定し、前記物体検出手段による前記ストッパの検出時における前記綱車の回転位置と回転方向に基づいて、前記ストッパが正しい位置に存在するか否かを判定することを特徴とする請求項1記載のエレベータ用調速機。 - 前記綱車に設けられた基準板、
を備え、
前記物体検出手段は、前記基準板が接近した場合に、前記基準板を検出し、
前記判定手段は、前記基準板と前記ストッパとの検出タイミングの差に基づいて前記綱車に対する前記ストッパの位置を判定し、前記ストッパが正しい位置に存在するか否かを判定することを特徴とする請求項2記載のエレベータ用調速機。 - 前記綱車の回転位置の変化に基づいて前記綱車の1回転を判定し、前記綱車の1回転中における前記物体検出手段による物体検出回数が前記ストッパと前記基準板との総数と異なる場合に、誤動作信号を出力する信号出力手段を備えたことを特徴とする請求項3記載のエレベータ用調速機。
- 前記綱車の回転位置の変化に基づいて前記綱車の回転速度を判定し、前記綱車の回転速度が前記フライウエイトを前記所定量だけ前記径方向外側に移動させる速度よりも遅い場合は、前記判定手段による前記ストッパの位置の判定を禁止する禁止手段を備えたことを特徴とする請求項1~請求項4のいずれかに記載のエレベータ用調速機。
- 前記ストッパが正しい位置に存在しないときは、誤動作信号を出力する信号出力手段を備えたことを特徴とする請求項5記載のエレベータ用調速機。
- 前記信号出力手段は、前記誤動作信号として、前記エレベータを駆動する巻上機に設けられたブレーキを動作させるための情報を含んだ信号を出力することを特徴とする請求項4又は請求項6に記載のエレベータ用調速機。
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JP6092344B1 (ja) * | 2015-11-02 | 2017-03-08 | 東芝エレベータ株式会社 | エレベータのガバナ装置 |
JPWO2015159375A1 (ja) * | 2014-04-16 | 2017-04-13 | 株式会社日立製作所 | エレベーター装置 |
JP2017105597A (ja) * | 2015-12-10 | 2017-06-15 | 株式会社日立製作所 | エレベーター装置 |
CN115140627A (zh) * | 2022-07-27 | 2022-10-04 | 苏州富士精工电梯有限公司 | 一种电梯限速器测量装置 |
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US11034546B2 (en) | 2018-06-28 | 2021-06-15 | Otis Elevator Company | Elevator governor |
JP7376427B2 (ja) * | 2020-05-26 | 2023-11-08 | 株式会社日立製作所 | エレベーター用調速機、及びエレベーター |
CN114961371A (zh) * | 2022-06-11 | 2022-08-30 | 北京首嘉钢结构有限公司 | 一种垂直升降类立体车库的限速装置 |
CN115285810A (zh) * | 2022-09-30 | 2022-11-04 | 江苏顺捷机电工程有限公司 | 电梯运行预警方法及应用该方法的人体互通电梯系统 |
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EP2020396A4 (en) * | 2006-05-22 | 2013-10-02 | Mitsubishi Electric Corp | REGIME LIMITER FOR ELEVATOR |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPWO2015159375A1 (ja) * | 2014-04-16 | 2017-04-13 | 株式会社日立製作所 | エレベーター装置 |
JP6092344B1 (ja) * | 2015-11-02 | 2017-03-08 | 東芝エレベータ株式会社 | エレベータのガバナ装置 |
JP2017105597A (ja) * | 2015-12-10 | 2017-06-15 | 株式会社日立製作所 | エレベーター装置 |
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EP2617672B1 (en) | 2018-11-28 |
CN103118965B (zh) | 2015-03-25 |
CN103118965A (zh) | 2013-05-22 |
JP5472473B2 (ja) | 2014-04-16 |
EP2617672A1 (en) | 2013-07-24 |
JPWO2012035641A1 (ja) | 2014-01-20 |
EP2617672A4 (en) | 2018-01-24 |
KR101398725B1 (ko) | 2014-05-27 |
KR20130103533A (ko) | 2013-09-23 |
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