TW593114B - Elevator machine integrated load weighing system - Google Patents

Elevator machine integrated load weighing system Download PDF

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Publication number
TW593114B
TW593114B TW90111217A TW90111217A TW593114B TW 593114 B TW593114 B TW 593114B TW 90111217 A TW90111217 A TW 90111217A TW 90111217 A TW90111217 A TW 90111217A TW 593114 B TW593114 B TW 593114B
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TW
Taiwan
Prior art keywords
sheave
lifting
force sensor
signal
main bearing
Prior art date
Application number
TW90111217A
Other languages
Chinese (zh)
Inventor
Hartmut Engler
Michael Thomas Barten
Original Assignee
Otis Elevator Co
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Publication date
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Publication of TW593114B publication Critical patent/TW593114B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00Control systems of elevators in general
    • B66B1/34Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3476Load weighing or car passenger counting devices

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)

Abstract

A force sensor integrated into a main bearing of an elevator machine measures the force in the direction of the wire ropes or coated steel belts that support and move an elevator car. The resulting signal provides information on the car weight and on mechanical problems in the hoistway, motor, main bearing, or drive sheave. The signal amplitude is proportional to the weight of the elevator car. The amplitude is independent of the position of the load in the elevator car. In cooperation with the position decoder of the machine, it is possible to differentiate between hoistway and motor problems, or to determine the precise location of the problem if the problem is in the hoistway.

Description

593114 發明説明( 發明領域 本發明係關於升降機箱之負載測重,尤其係關於在升降 機中之升降機箱之負荷測重。 發明背景 對於隨時得知一升降機箱之負荷功能,對於達到順利且 舒適承載性能而言係相當重要的。若機箱過度負荷,則安 全系統必須察覺,以使升降機煞車在此負荷下不會被釋放 ’並根據在機箱中之負荷來決定在那一層樓停機,或者係 使防干擾軟體可以適當地運作。防干擾軟體係可以藉由假 設每一人之平均重量來估算在機箱中之人數。其接著便可 以決定待機(car call)之人數,且若待機人數超過估算出來 之人數,則防干擾軟體便會取消這些待機指令。 經濟部中央標準局員工消費合作社印裝 已有系統係設計成在機箱正下方設有負荷測重器。某些 系統則係測在機箱地板下方之彈性墊的變形量。變形系 統之缺點係在於,在該彈性墊中所使用之彈性材料。的嗓滞 現象係會產生不準確的測量結果。另一項缺點係在於,其 必須安裝足夠的負荷細胞,以在任何負荷狀態下可以均分 该負荷。其他的缺點尚包括在安裝上所需要之成本、時間 及困難度、測量値之低精確度、維修管道不足、以及裝置 之更換係必須針對每一個新的設計來修改。 發明橋要 相 簡單來説,一種力感應器係整合在一升降機之主軸承中 ,其係用以測量在該用以支撑及移動一升降機箱之繩索或 覆鋼帶之方向上的作用力。所得到之信號係可以提供機 .4- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) 593114 Α7 Β7 、發明説明(2 重量之資訊,以及在垂直通道、馬達、主軸承或驅動槽輪 上發生機械故障之資訊。信號振幅係正比於升降機箱之重 f °該振幅係與負荷作用在升降機上之位置無關。配合機 器之位置判讀器,其便可以辨識出在垂直通道與馬達問題 之間的差異性,或者若問題係發生在垂直通道中時,則其 可以判斷出發生問題之精確位置。 依照本發明之一實施例,一種升降機箱之整體負荷測重 系統係包括一馬達,其具有一軸桿;一驅動槽輪,其係經 由一主軸承而連接至該軸桿;一拉緊構件,其係環套在該 驅動槽輪上,並且支撑該升降機箱;以及一力感應器,其 係位在主軸承中,其中由該拉緊構件作用在該主軸承上之 作用力,係可以藉由該力感應器偵測出來,且其係正比於 該升降機箱之重量。 依照本發明之一實施例,一種升降機箱之整體負荷測重 系統,其包括一驅動槽輪,其係經由一第一軸承而兮裝在 一第一軸桿上;至少另一槽輪,其係經由一第二軸承而安 裝在一第二軸桿上;一拉緊構件,其係環套在該驅動槽輪 及該至少另-槽輪上,且該拉緊構件係支撑該升降機箱; 以及一力感應器,其係位在該第一及第二軸承之至少其中 一者上,其中由該拉緊構件作用在該至少一第一及第二軸 承上之作用力,係可以藉由該γ感應器偵測出來,且其係 正比於该升降機箱之重量。 圖式之簡單説明 圖1係顯示一用於升降機系統之機器。 請 先 閲 面 I 事 項593114 Description of the invention (Field of the invention The present invention relates to the load measurement of lifting cabinets, and particularly to the load measurement of lifting cabinets in elevators. BACKGROUND OF THE INVENTION For knowing the load function of a lifting cabinet at any time, to achieve smooth and comfortable loading Performance is very important. If the chassis is overloaded, the safety system must be aware so that the elevator brake will not be released under this load 'and decide which floor to stop at based on the load in the chassis, or The anti-jamming software can work properly. The anti-jamming software system can estimate the number of people in the case by assuming the average weight of each person. It can then determine the number of people who are on call (car call), and if the number of people on standby exceeds the estimated number The anti-jamming software will cancel these standby instructions. The existing consumer system of the Central Bureau of Standards of the Ministry of Economic Affairs's consumer cooperatives has printed the existing system designed to have a load cell directly below the chassis. Some systems are tested under the chassis floor The amount of deformation of the elastic pad. The disadvantage of the deformation system is that The elasticity of the material used will produce inaccurate measurement results. Another disadvantage is that it must install enough load cells to divide the load evenly under any load condition. Other disadvantages include The cost, time and difficulty of installation, low accuracy of measurement, insufficient maintenance pipeline, and device replacement must be modified for each new design. Inventing the bridge is relatively simple, a force sensing The device is integrated in the main bearing of an elevator, which is used to measure the force in the direction of the rope or steel belt used to support and move an elevator case. The obtained signal can provide the machine. This paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) 593114 Α7 Β7, invention description (2 weight information, and information about mechanical failure on the vertical channel, motor, main bearing or drive sheave. Signal The amplitude is proportional to the weight of the lifting cabinet f ° The amplitude is independent of the position of the load on the elevator. With the position reader of the machine, Then, the difference between the vertical channel and the motor problem can be identified, or if the problem occurs in the vertical channel, it can determine the exact location where the problem occurred. According to an embodiment of the present invention, a lifting cabinet The overall load measurement system includes a motor having a shaft, a drive sheave connected to the shaft via a main bearing, and a tensioning member looped over the drive sheave, and Supporting the lifting casing; and a force sensor, which is located in the main bearing, wherein the force exerted by the tensioning member on the main bearing can be detected by the force sensor, and its system According to an embodiment of the present invention, an overall load measurement system for a lifting cabinet includes a driving sheave, which is mounted on a first shaft through a first bearing. ; At least another sheave, which is mounted on a second shaft via a second bearing; a tensioning member, which is looped over the drive sheave and the at least another-sheave, and the pulling Compact member Supporting the lifting casing; and a force sensor positioned on at least one of the first and second bearings, wherein the tension member acts on the at least one first and second bearings The force can be detected by the gamma sensor, and it is proportional to the weight of the lifting casing. Brief description of the drawings Figure 1 shows a machine for a lift system. Please read the item I above

經濟部中央標準局員工消費合作社印裝Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs

五、發明説明(3 圖2係概要顯示本發明之原理。 圖3係顯示依照本發 _ A l 髹明足一種整合式力感應器。 圖4係概要顯示本發、 4月(升降機系統之阻尼器彈簧等效系 統。 、 ,圖5絲顯示本發明之力感應器在正常操作狀態下的輪出 波形。 圖5B係j 本發明之力感應器在_槽輪或馬達變形之狀 態下的輸出波形。 圖5(:係示本發明之力感應器在—軸承受損之狀態下的 輸出波形。 圖5D係顯示本發明之力感應器在升降機箱導軌受損之狀 態下的輸出波形。 圖5E係顯示本發明之力感應器在馬達或閉路控制器受損 之狀態下的輸出波形。 圖6係概要顯示一升降機箱之另一種懸吊配置方式,其中 係利用本發明之一實施例。 較佳實施例之詳細説明 經濟部中央標準局員工消費合作社印製 現請參照圖1-2,其中一升降機10係包括一用以驅動一軸 桿20之馬達12。一驅動槽輪14及煞車器16係連接至軸桿2〇 。升降機10通常係連接至一座板18,而接著該座板18則係 安裝在一位在升降機垂直通路·上方之機器室。一拉緊構件 15,諸如一繩索(纜)或包覆鋼帶(CSB)係穿過該驅動槽輪14 而延伸至一升降機箱22與一配平器24。 現請參照圖3,一軸承26係將驅動槽輪14連接至軸桿20。 -6- 本紙張尺度適用中國國家標準(CNS ) A4規格(210 X297公釐) 593114 A7 B7 五、發明説明(4 ) " 該軸承26最好係包括一力感應器28,諸如一抗應變規或壓 電力規’其係可以偵測由該拉緊構件1 5作用在軸承26上之 負荷。力感應器28係會輸出一信號,該信號振幅係正比於 由拉緊構件1 5所施加之負荷,包括由升降機箱22以及配平 器24所造成之負荷,且不論該負荷係產生在升降機箱22之 任何位置皆可。信號之頻率則係正比於馬達12之速度。 若波形與正常正弦曲線不同,則表示發生某種變化。圖4 之示意圖,其係顯示相等於圖2之系統的阻尼器-彈簧等效 系統,其係用以預測在發生變化之情況下由該力感應器28 所輸出之信號。 現請參照圖5 A,其中顯示由力感應器28所輸出之信號, 係隨著機箱負荷變化而產生變化。此一信號係可以表示乘 客進出升降機之正常操作。 現請參照圖5B,一變形之驅動槽輪14、受損之馬達12或 受損之馬達12閉路控制器,將會激發圖4之彈簧阻尼 器系統 ,而形成圖5B之信號圖。該振盪週期係等於馬達12之轉子 速度。 經濟部中央標準局員工消費合作社印製 現凊參照圖5 C ’ 一受損之球狀軸承2 6將會造成在信號中 產生波形尖頭,其該波形尖頭係具有與馬達12之特定轉子 位置12相關的週期性振幅。 現請參照圖5 D,在升降機垂-直通道中用以導引升降機箱 22之導軌若未加以適當調整時,則會產生一種信號,其係 與該升降機箱22在垂直通道中之特定位置有關。 現請參照圖5E,其中顯示之信號係表示由一受損之馬達 本紙張尺度適用中國國家標準(CNS ) A4規格(21 〇 X 297公楚) 593114 A7 _______B7 五、發明説明(5 ) 12或受損之閉路控制器所造成之力矩波動。 現請參照圖6,位在一垂直通道30中之升降機箱22係以一 種高吊索配置之方式來懸吊。拉緊構件1 5係連接至一索鉤 32,且穿過該連接至升降機箱22頂端之升降機槽輪34及36 ,穿過驅動槽輪14,然後連接至配平器24。力感應器輸出 値係正比於升降機箱22之重量,不論其係安裝在驅動槽輪 14之軸承、槽輪34或槽輪36上。雖然圖6係顯示一種高吊索 配置方式,然而本發明亦可以採用低吊索配置,其中升降 機槽輪係連接至升降機箱22之底邵。視情況而定,該機器( 馬達及驅動槽輪組合)係可以位在升降機箱上,或者係位在 升降機箱下方。 雖然本發明已經針對一特定較佳實施例及附圖説明如上 ’然而習於此技者應可瞭解,本發明並未侷限於較佳實施 例’在不脱離本發明後附申請專利範圍所界定之範_内, 本發明仍可以有不同的修飾及變化。 . 經濟部中央標準局員工消費合作社印製V. Description of the invention (3 Figure 2 shows the principle of the present invention in outline. Figure 3 shows an integrated force sensor according to the present invention. Figure 4 shows the outline of the present, April (the elevator system Damper spring equivalent system. Fig. 5 shows the wheel-out waveform of the force sensor of the present invention in a normal operating state. Fig. 5B is the j-force wheel of the present invention in the state of a _groove or a deformed motor Output waveform. Figure 5 (: shows the output waveform of the force sensor of the present invention in a state where the bearing is damaged. Figure 5D shows the output waveform of the force sensor of the present invention in the state where the guide rail of the lifting case is damaged. Fig. 5E shows the output waveform of the force sensor of the present invention when the motor or the closed-circuit controller is damaged. Fig. 6 shows an overview of another suspension configuration of a lifting case, in which an embodiment of the present invention is used Detailed description of the preferred embodiment. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs. Please refer to Figures 1-2. A lift 10 includes a motor 12 for driving a shaft 20. A drive sheave 14 and a brake. The elevator 16 is connected to the shaft 20. The elevator 10 is usually connected to a plate 18, and then the seat plate 18 is installed in a machine room above the vertical passageway of the elevator. A tensioning member 15, such as a A rope (cable) or clad steel belt (CSB) passes through the drive sheave 14 and extends to a lifting case 22 and a balancer 24. Now referring to FIG. 3, a bearing 26 connects the drive sheave 14 to轴 杆 20. -6- This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X297 mm) 593114 A7 B7 5. Description of the invention (4) " The bearing 26 preferably includes a force sensor 28, Such as a strain gauge or a piezoelectric gauge, it can detect the load on the bearing 26 by the tensioning member 15. The force sensor 28 will output a signal whose amplitude is proportional to the tensioning member. The load applied by 15 includes the load caused by the lifting case 22 and the balancer 24, regardless of whether the load is generated at any position of the lifting case 22. The frequency of the signal is proportional to the speed of the motor 12. If If the waveform is different from the normal sine curve, 4 is a schematic diagram showing a damper-spring equivalent system equivalent to the system of FIG. 2, which is used to predict the signal output by the force sensor 28 in the event of a change. Please refer to FIG. 5A, which shows that the signal output by the force sensor 28 changes with the load of the chassis. This signal can indicate the normal operation of passengers entering and leaving the elevator. Now refer to FIG. 5B, a deformation The driven sheave 14, the damaged motor 12, or the damaged motor 12 closed-circuit controller will excite the spring damper system of FIG. 4 to form the signal diagram of FIG. 5B. This oscillation period is equal to the rotor speed of the motor 12. . Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. Refer to Figure 5 C. A damaged ball bearing 26 will cause a wave tip in the signal, which has a specific rotor with the motor 12 Position 12 related periodic amplitude. Now referring to FIG. 5D, if the guide rails used to guide the lifting cabinet 22 in the vertical-straight channel of the elevator are not properly adjusted, a signal will be generated that is related to the specific position of the lifting cabinet 22 in the vertical channel. . Please refer to FIG. 5E. The signal shown in the figure indicates that the paper size of a damaged motor is in accordance with the Chinese National Standard (CNS) A4 specification (21 0X 297). 593114 A7 _______B7 V. Description of the invention (5) Torque fluctuations caused by a damaged closed-circuit controller. Referring now to FIG. 6, the lifting cabinet 22 in a vertical passage 30 is suspended in a high sling configuration. The tensioning member 15 is connected to a cable hook 32, passes through the lift sheaves 34 and 36 connected to the top of the lift case 22, passes through the drive sheave 14, and is then connected to the balancer 24. The output of the force sensor 値 is proportional to the weight of the lifting casing 22, regardless of whether it is mounted on the bearing driving the sheave 14, the sheave 34, or the sheave 36. Although FIG. 6 shows a configuration of a high sling, the present invention can also adopt a low sling configuration, in which the elevator trough wheel train is connected to the bottom of the lifting casing 22. Depending on the situation, the machine (motor and drive sheave combination) can be located on the lifting cabinet or under the lifting cabinet. Although the present invention has been described above with reference to a specific preferred embodiment and the accompanying drawings, those skilled in the art should understand that the present invention is not limited to the preferred embodiment, Within the scope of the definition, the present invention can still have different modifications and changes. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs

Claims (1)

A8 B8 C8 D8A8 B8 C8 D8 申請專利範圍 一種升降機箱之整體負荷測重系統,其包含: 一馬達,其具有一軸桿; 一驅動槽輪,其係經由一主軸承而連接至該軸桿; 才糸構件’其係J衣套在該驅動槽輪上,並且支撑該升 降機箱;以及 一力感應器,其係位在主軸承中,其中由該拉緊構件作 用在該主軸承上之作用力,係可以藉由該力感應器偵測 出來’且其係正比於該升降機箱之重量。 根據申請專利範圍第丨項之系統,其中: 该力感應器係輸出一信號;—且其中 孩信號之頻率係正比於該升降機箱之速度。 3·根據申請專利範圍第2項之系統,其中該信號之一特徵係 代表孩馬達、主軸承、槽輪及垂直通道之至少其中一者 之狀態。 4· 一種升降機箱之整體負荷測重系統,其包含: 一驅動槽輪,其係經由一第一軸承而安裝在一矿一軸桿 上; 2. 其係經由一弟二轴承而安裝在一第二 (請先閱讀背面之注意事項寫本頁) 裝: ·- .線- 經濟部智慧財產局員工消費合作社印製 至少另一槽輪 桿上; 一拉緊構件’其係環套在該驅動槽輪及該至少另一槽輪 上’且孩拉緊構件係支撑該升降機箱;以及 一力感應器,其係位在該第_ 一及第二軸承之至少其中一 者上’其中由該拉緊構件作用在該至少一第一及第二軸 承上之作用力,係可以藉由該力感應器偵測出來,且其 9- 木紙張尺度適用中國國家標準 593114 A8 B8 C8 D8 六、申請專利範圍 係正比於該升降機箱之重量。 5. 根據申請專利範圍第4項之系統,其中: 該力感應器係輸出一信號;且其中 該信號之頻率係正比於該升降機箱之速度。 6. 根據申請專利範圍第5項之系統,其中該信號之一特徵係 代表該馬達、主軸承、槽輪及垂直通道之至少其中一者 之狀態。 (請先閱讀背面之注意事項寫本頁) 裝 ,線' 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐)The scope of the patent application is an overall load measurement system for a lifting cabinet, which includes: a motor having a shaft; a drive sheave connected to the shaft via a main bearing; and a member 'its J-suit It is sleeved on the driving sheave and supports the lifting casing; and a force sensor is located in the main bearing, wherein the force exerted by the tensioning member on the main bearing can be determined by the force The sensor detects it 'and it is directly proportional to the weight of the lifting cabinet. The system according to item 丨 of the scope of patent application, wherein: the force sensor outputs a signal; and the frequency of the signal is proportional to the speed of the lifting cabinet. 3. The system according to item 2 of the scope of patent application, wherein one of the characteristics of the signal represents the state of at least one of the child motor, the main bearing, the sheave and the vertical channel. 4. · An overall load measurement system for a lifting box, comprising: a drive sheave, which is installed on a shaft of a mine via a first bearing; 2. it is installed on a shaft via a second bearing Second (please read the precautions on the back to write this page first) Install: ·-. Line-Printed on at least one other grooved rod by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs; a tension member 'whose collar is sleeved on the drive The sheave and the at least one other sheave 'and the tension member supports the lifting casing; and a force sensor located on at least one of the first and second bearings', wherein the The force exerted by the tensioning member on the at least one first and second bearing can be detected by the force sensor, and its 9-wood paper standard is applicable to the Chinese national standard 593114 A8 B8 C8 D8 6. Application The patent scope is proportional to the weight of the lifting cabinet. 5. The system according to item 4 of the scope of patent application, wherein: the force sensor outputs a signal; and wherein the frequency of the signal is proportional to the speed of the lifting casing. 6. The system according to item 5 of the scope of patent application, wherein one of the characteristics of the signal represents the status of at least one of the motor, the main bearing, the sheave and the vertical channel. (Please read the precautions on the back first and write this page) Pack, line 'Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)
TW90111217A 2000-06-29 2001-05-11 Elevator machine integrated load weighing system TW593114B (en)

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CN101298307B (en) * 2007-05-03 2010-06-23 因温特奥股份公司 Elevator equipment, a slewing roller for elevator equipment and a method for installing a load sensor
EP2520534B1 (en) * 2011-05-02 2014-06-25 Hoffmann Foerdertechnik GmbH Load detection device for lifting devices and electric chain hoists
DE102015207796A1 (en) * 2015-04-28 2016-11-17 Thyssenkrupp Ag Device for measuring loads in an elevator installation
DE102017129486A1 (en) * 2017-12-11 2019-06-13 Otto Bock Healthcare Products Gmbh Linear force measuring device and hydraulic actuator
US11643301B2 (en) * 2019-10-28 2023-05-09 Otis Elevator Company System and method for monitoring sheave bearing condition

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FR2278068A1 (en) * 1974-07-12 1976-02-06 Simon Francois RADIAL FORCE MEASUREMENT DEVICE SUPPORTED BY A ROTATING BODY
JPH0791003B2 (en) * 1987-11-18 1995-10-04 三菱電機株式会社 Elevator load detection device
US5140849A (en) * 1990-07-30 1992-08-25 Agency Of Industrial Science And Technology Rolling bearing with a sensor unit
FR2736979B1 (en) * 1995-07-21 1997-08-14 Roulements Soc Nouvelle DYNAMOMETRIC SENSOR DEVICE AND METHOD FOR BEARINGS AND BEARINGS
JPH09240942A (en) * 1996-03-08 1997-09-16 Toshiba Elevator Eng Kk Elevator device

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