CN1665737A - Weighing device for elevator - Google Patents
Weighing device for elevator Download PDFInfo
- Publication number
- CN1665737A CN1665737A CN03807942.9A CN03807942A CN1665737A CN 1665737 A CN1665737 A CN 1665737A CN 03807942 A CN03807942 A CN 03807942A CN 1665737 A CN1665737 A CN 1665737A
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- China
- Prior art keywords
- rope
- elevator
- tension force
- main rope
- weighing apparatus
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3476—Load weighing or car passenger counting devices
- B66B1/3484—Load weighing or car passenger counting devices using load cells
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
A weighing device of an elevator, wherein a rotation support stand supporting the total of tensions acting on the end parts of main ropes and rotated according to the magnitude of the total of the tensions is rotatably installed on a main rope support part, an elastic member extended and retracted according to the total of the tensions is installed between the rotation support stand and the main rope support part, and a detector outputs signals according to the rotating position of the rotation support stand.
Description
Technical field
The present invention relates to the load-carrying of car is carried out the Weighing apparatus of the elevator that instrumentation uses.
Background technology
Generally, in elevator, car is played under the many main ropes in hoist trunk.For example, in the elevator of 2: 1 ropes than mode, the tension force that takes place on the end of main rope is supported by the main rope support on hoist trunk top.The main rope support for example, is to be fixed on the member of beam etc. on the top in the hoist trunk or the base plate of Machine Room.
On the end of each main rope,, between each rope shackle and main rope support, be provided with the shackle spring that stretches according to the tension force that on the main rope end, takes place in conjunction with the rope shackle.
Again, on the main rope support, be provided with Weighing apparatus, instrumentation is carried out in change such as the load-carrying in the car that causes because of passenger and goods etc.And, when the load-carrying in car surpasses payload ratings, stop the lifting of car.According to load-carrying the propulsive effort that actuating device takes place is controlled again.
For example, in the Weighing apparatus in the past shown in the special fair 8-5605 communique of Japanese Patent, on per 2 or 3 s' shackle spring, check-out console is installed.And,, can detect the load-carrying in the car by the displacement along with the check-out console of the displacement of rope shackle is detected.
But, in Weighing apparatus in the past owing to change with the main rope slope according to position, the rope shackle of car, so check-out console towards upper and lower to addendum modification produce error, error also often takes place in the instrumentation value of the load-carrying that car is interior.Therefore, the power than in fact required is greatly sometimes little sometimes for the driving output during elevator starter, so might make the passenger uncomfortable.
Summary of the invention
The present invention makes in order to address the above problem, and its purpose is that acquisition can improve the Weighing apparatus of the elevator of instrumentation precision.
The Weighing apparatus of elevator of the present invention, be set at and a plurality of rope anchor of end bonded assembly of a plurality of main ropes and main rope support that the tension force on the end that acts on main rope is supported between, and from tension force the weight row of car is detected, have: the rotary branching holder that is located at rotationally on the main rope support, the total of tension force is supported, rotates according to the size of the total of tension force; The elastic component that is located between rotary branching holder and the main rope support, stretches according to the total of tension force; The detector of the corresponding signal of turned position of output and rotary branching holder.
Description of drawings
Fig. 1 is the constructional drawing of the elevator of expression the invention process form 1.
Fig. 2 is the lateral plan of the Weighing apparatus of presentation graphs 1.
Fig. 3 is the birds-eye view of the Weighing apparatus of presentation graphs 2.
Fig. 4 is the lateral plan of Weighing apparatus of the elevator of expression the invention process form 2.
Fig. 5 is the birds-eye view of Weighing apparatus of the elevator of expression the invention process form 3.
The specific embodiment
Below, with reference to accompanying drawing best example of the present invention is described.
[example 1]
Fig. 1 is the constructional drawing of the elevator of expression the invention process form 1.Among the figure, be provided with Machine Room 2 on the top of hoist trunk 1.In Machine Room 2, be provided with actuating device (winch) 3 with drive pulley 3a.Volume is hung the main rope 4 of many (only representing 1 among Fig. 1) on drive pulley 3a.
Car 5 and counterweight 6 are hung in the hoist trunk 1 for 4 times by main rope, utilize the propulsive effort of actuating device 3 to carry out lifting in hoist trunk 1.Car 5 has car frame 7 and the cage 8 that is supported in the car frame 7.On the top of car frame 7 (upper beam), be provided with a pair of car hanging wheel 9a, 9b that volume is hung main rope 4.On the top of counterweight 6, be provided with the counterweight hanging wheel 10 that volume is hung main rope 4.
Main rope 4 has cage side end 4a and counterweight side end 4b.Cage side end 4a is being connected with Machine Room base plate 2a as the main rope support by cage side rope anchor 11.Counterweight side end 4b is being connected with Machine Room base plate 2a by counterweight side rope anchor 12.That is, the tension force that on cage side end 4a and counterweight side end 4b, produces, base plate 2a is supporting by the Machine Room.
Main rope 4 to counterweight side end 4b, is pressed car hanging wheel 9a, 9b from cage side end 4a betwixt; The order of drive pulley 3a and counterweight hanging wheel 10 is rolled up hangs.That is, car 5 and counterweight 6, with 2: 1 ropes than mode by under play.
Between cage side rope anchor 11 and Machine Room base plate 2a, be provided with the Weighing apparatus 13 that instrumentation is used is carried out in the load-carrying of car 5.
Here, 2: 1 ropes than mode in, when the radical with main rope 4 be made as N, with car 5 be reset to certainly Wc, with the cage side of main rope 4 part (part between Weighing apparatus 13 and drive pulley 3a) be reset to Wr certainly, when the load-carrying in the cage 8 is made as W, then the tension force P that partly produces in the cage side of 1 main rope 4 becomes:
P＝(Wc+Wr+W)/(2×N)
Again, when load-carrying W was 0 (zero load), P became:
P＝(Wc+Wr)/(2×N)
But Wr changes according to the position of car 5.
Below, Fig. 2 is the lateral plan of the Weighing apparatus 13 of presentation graphs 1, Fig. 3 is the birds-eye view of the Weighing apparatus 13 of presentation graphs 2.Among the figure, each cage side rope anchor 11 has: the shank 14 that combines with cage side end 4a; Be installed in the single Spring pad (upper springs liner) 15 of the upper end of shank 14; With single Spring pad 15 butts and the hook spring 16 that stretches according to the tension force that on the 4a of cage side end, takes place.
On the base plate 2a of Machine Room, be fixed with pedestal 20.On pedestal 20, fixing bearing portion 21.In bearing portion 21, be provided with to horizontally extending turning cylinder 23.On turning cylinder 23, be installed with turning cylinder 23 as the rotating rotary branching holder 24 in center.
Between shared spring supporting plate 25 and pedestal 20, be provided with a pair of weighing spring 26 as elastic component.Rotary branching holder 24 rotates according to the size of the total of the tension force that produces on the 4a of cage side end.Again, weighing is with spring 26, stretches according to the size of the total of the tension force that produces on the 4a of cage side end.
On the leading section of shared spring supporting plate 25, be fixed with action movie 27.On pedestal 20, dispose the detector 28 of the corresponding signal of turned position of output and rotary branching holder 24.Detector 28 has barrel-contoured coil portion 29 and inserts the core part 30 of leading in coil portion 29.Coil portion 29, relatively pedestal 20 is fixed, and core part 30 is along with the knee-action of action movie 27 carries out knee-action in coil portion 29.Detector 28 is being connected with control board for elevator (not shown) by signal wire (SW) 31.
Weighing apparatus 13 has: the rotary branching holder 24 that comprises pedestal 20, bearing portion 21, turning cylinder 23, shared spring supporting plate 25; Weighing spring 26; Action movie 27; Detector 28 and signal wire (SW) 31.
In such Weighing apparatus 13, according to the size of the total of the tension force that on the 4a of cage side end, produces, rotary branching holder 24 turning cylinder 23 is rotated as the center, utilize the rotation of rotary branching holder 24, action movie 27 direction up and down carries out displacement.Utilize the displacement of 28 pairs of action movies 27 of detector to detect, will export from detector 28 with the corresponding signal of the turned position of rotary branching holder 24.
From the signal of detector 28 outputs, carry to control board for elevator by signal wire (SW) 31.In control board for elevator, the signal that is used to self-detector 28 is obtained the variation of the total of the tension force that produces on the 4a of cage side end.
That is, the amount of movement of the direction up and down of action movie 27 is transformed into electric parameters (voltage) by detector 28, exports as signal.The variation of the electric parameters that changes with the knee-action of action movie 27 with being directly proportional since with the direct ratio that is varied to of the tension force of main rope 4, so can obtain the variation of tension force from electric parameters.
Here, what what is called was used to that the signal of self-detector 28 directly obtains is, the variation of the total of the tension force that on the 4a of the cage side end of main rope 4, produces, during this changes, the variation of the load-carrying in the cage 8 is not only arranged, also comprise changes in weight along with the cage side part of the main rope 4 of the change in location of car 5.The total of such tension force is exerted one's influence to the driving torque of actuating device 3, by according to the variation of tension force the driving output during to starting control, can improve the riding comfort level of passenger.
From the variation of the tension force that produces at cage side end 4a, can obtain the variation of the load-carrying in the cage 8 again.That is, as mentioned above, among the tension force P, except load-carrying W, also comprise the deadweight Wc of car 5 and the cage side weight W r partly of main rope 4, and the deadweight Wc of car 5 is known values, the weight W r of main rope 4 can easily obtain from the position of car 5.
The total Pt of the tension force that produces on the 4a of cage side end is:
Pt＝P×n＝(Wc+Wr+W)/2
Tension force Pt is owing to can be used for the signal of self-detector 28 and obtain, so cage 8 interior load-carrying W become:
W＝2Pt-Wc-Wr
Wr can easily obtain according to the position of car 5.
In such Weighing apparatus 13, rotary branching holder 24, owing to not rotated by the influence ground of the bevelled variation of main rope 4 according to the tension force that on the 4a of cage side end, produces, so can improve the instrumentation precision of the load-carrying in the cage 8.Again, no matter only get final product, so can make Weighing apparatus 13 low prices with 1 detector 28 owing to the radical of main rope 4.
[example 2]
Then, Fig. 4 is the lateral plan of Weighing apparatus of the elevator of expression the invention process form 2.Among the figure, fixing detected 32 at the leading section of shared spring supporting plate 25.On pedestal 20, dispose the detector 33 of the corresponding signal of turned position of output and rotary branching holder 24.Detector 33, with detected 32 relatively disposing, to and distance between detected 32 detect.
As detector 33, for example, can use the known rang sensor that utilizes electrostatic capacity, flux change or detection reflection of light etc. again.That is, detector 33 is to detect the distance to detected 32 with detected 32 non-contacting state.Detector 33 is being connected with control board for elevator by signal wire (SW) 31.Other structure and example 1 are same.
Like this,, also can improve the instrumentation precision of the load-carrying in the cage 8, can make the Weighing apparatus low price even use the detector 33 of noncontact form.Again, the mechanical life of the detector 33 of noncontact form, since longer than the detector of form with slipper, can realize Weighing apparatus single-piece long lifetime, and can alleviate the time of maintenance.
[example 3]
Then, Fig. 5 is the birds-eye view of Weighing apparatus of the elevator of expression the invention process form 3.In example 1, as shown in Figure 3, disposing main rope 4 cooresponding cage side rope anchor 11 with even number root (8) each 42 row.Relative therewith, in example 3 since 2 row disposing main rope 4 cooresponding cage side rope anchor 11 with odd number root (7), so be configured to a side show 4, the opposing party show 3 main rope 4.
Therefore, on turning cylinder 23 side ends of the opposing party's row, have the rope anchor through hole 25a of the sky that does not dispose cage side rope anchor 11.Thus, the configuration density of cage side rope anchor 11 relative rope anchor through hole 25a, from turning cylinder 23 sides far away than from the near side height of turning cylinder 23.Again, do not dispose the rope anchor through hole 25a of the sky of cage side rope anchor 11, utilize and as discoideus lid 34 lockings of latch members.
Here, for the occasion of putting from turning cylinder 23 side polygamies far away and with cage side rope anchor 11 in the occasion of putting with the near side polygamy of turning cylinder 23, calculate and act on weighing with the lifting capacity on the spring 26.
Distance from turning cylinder 23 to rope anchor through hole 25a is set as L1, L2=L1+a, L3=L1+2 * a, L4=L1+3 * a, to be set as L5=L1+b from turning cylinder 23 to weighing with the distance of spring 26, the tension force that will produce on the cage side part of 1 main rope 4 is set as P.
As shown in Figure 5, will make empty occasion with the rope anchor through hole 34 of the near distance L 1 of turning cylinder 23, promptly in the occasion that has disposed more main rope 4 from turning cylinder 23 sides far away, weighing becomes with the lifting capacity R1 of spring 26:
R1＝(PL1+2PL2+2PL3+2PL4)/L5
＝(7L1+12a)P/(L1+b)
On the other hand, though not shown, will make empty occasion from the rope anchor through hole 34 of turning cylinder 23 distance L 4 far away, weighing becomes with the lifting capacity R2 of spring 26:
R2＝(2PL1+2PL2+2PL3+PL4)/L5
＝(7L1+9a)P/(L1+b)
Therefore, R1 becomes that big (R1＞R2), in the time of will making sky from the rope anchor through hole 34 of the near distance L 1 of turning cylinder 23, weighing is with the flexible increase of spring 26 than R2.Therefore, because configuration density from the cage side rope anchor 11 of turning cylinder 23 side far away is made than the configuration density height from the cage side rope anchor 11 of the near side of turning cylinder 23, so can enlarge the amount of spin of rotary branching holder 24, and can improve accuracy of detection.
Again, empty rope anchor through hole 25a if utilize discoideus lid 34 to carry out locking in advance before dispatching from the factory from factory, then can not mismatch cage side rope anchor 11 when mounted and put, and can improve the operation of installing.
Again, in example 3, represented lid 34 as latch members, latch members also can be a splicing tape etc.
Again, the present invention also can be applied to not have in the machine room-less elevator of Machine Room.This occasion, main rope support are the members that is fixed on the beam etc. on the top in the hoist trunk.
In above-mentioned example, represented with 2: 1 ropes elevator, but rope does not limit especially than mode than mode again.For example, the present invention also can be applied in the elevator of 1: 1 rope than mode.In the elevator of 1: 1 rope than mode, the cage side end of main rope is being connected with the upper beam of car frame.That is, the main rope support is to put the beams in place.Therefore, Weighing apparatus is installed on the upper beam with the state opposite up and down with example 1～3.
Claims (4)
1, a kind of Weighing apparatus of elevator, be set at and a plurality of rope anchor of end bonded assembly of a plurality of main ropes and main rope support that the tension force of the end that acts on described main rope is supported between, and detect from the load-carrying of described tension force to car, it is characterized in that having:
The rotary branching holder that is located at rotationally on the described main rope support, the total of described tension force is supported, rotates according to the size of the total of described tension force;
The elastic component that is located between described rotary branching holder and the described main rope support, stretches according to the total of described tension force; And
The detector of the corresponding signal of turned position of output and described rotary branching holder.
2, the Weighing apparatus of elevator as claimed in claim 1, it is characterized in that, on described rotary branching holder, fixing detected, described detector, be with the noncontact form of described detected non-contacting form to detecting to described detected distance.
3, the Weighing apparatus of elevator as claimed in claim 1, it is characterized in that, on described rotary branching holder, be provided with a plurality of rope anchor through holes that connect described rope anchor, the number of described rope anchor is lacked than the number of described rope anchor through hole, described rope anchor is with respect to the configuration density of described rope anchor through hole, and a side far away from the turning cylinder of described rotary branching holder compares from the near side height of described turning cylinder.
4, the Weighing apparatus of elevator as claimed in claim 3 is characterized in that, also has the latch members that the described rope anchor through hole with sky carries out locking.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2003/004404 WO2004089802A1 (en) | 2003-04-07 | 2003-04-07 | Weighing device of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1665737A true CN1665737A (en) | 2005-09-07 |
Family
ID=33156437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN03807942.9A Pending CN1665737A (en) | 2003-04-07 | 2003-04-07 | Weighing device for elevator |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1612176A4 (en) |
| JP (1) | JPWO2004089802A1 (en) |
| CN (1) | CN1665737A (en) |
| WO (1) | WO2004089802A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588061A (en) * | 2013-11-29 | 2014-02-19 | 日立电梯（中国）有限公司 | Elevator weighing device |
| CN103754717A (en) * | 2014-01-24 | 2014-04-30 | 广西建工集团建筑机械制造有限责任公司 | Lifting weight limiting device of building hoist |
| CN107662863A (en) * | 2017-07-28 | 2018-02-06 | 冯锦文 | A kind of elevator anti-drop method |
| CN110023225A (en) * | 2016-12-09 | 2019-07-16 | 三菱电机株式会社 | The scale device of elevator |
| CN112079217A (en) * | 2020-10-09 | 2020-12-15 | 上海昶屹机电科技有限公司 | Elevator car load real-time detection system and method |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1878683A3 (en) * | 2006-07-10 | 2009-05-20 | Inventio AG | Device for determining the load in a lift cabin |
| US7784589B2 (en) | 2006-07-10 | 2010-08-31 | Inventio Ag | Elevator lift cage load measuring assembly |
| CN103359565B (en) * | 2012-04-06 | 2016-04-06 | 富士达株式会社 | The cable strain measuring method of elevator and device |
| CN103274270B (en) * | 2013-06-09 | 2016-06-08 | 江南嘉捷电梯股份有限公司 | A kind of lift car weighing device |
| JP2018177435A (en) * | 2017-04-10 | 2018-11-15 | 株式会社日立製作所 | Balance device for elevator |
| US10618772B2 (en) | 2017-06-20 | 2020-04-14 | Otis Elevator Company | Elevator termination assembly that provides an indication of elevator car load |
| JP6744453B1 (en) * | 2019-05-09 | 2020-08-19 | 東芝エレベータ株式会社 | Abnormality diagnosis system |
| WO2022003233A1 (en) * | 2020-07-03 | 2022-01-06 | Kone Corporation | A tension member tension monitoring arrangement, a tension member tension monitoring method and an elevator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53102558A (en) * | 1977-02-18 | 1978-09-06 | Hitachi Ltd | Device for detecting load of luggage loaded on elevator cage |
| US5149922A (en) * | 1989-09-08 | 1992-09-22 | Mitsubishi Denki Kabushiki Kaisha | Elevator load detector device using movable detector plates |
| JP2581357B2 (en) * | 1991-10-04 | 1997-02-12 | 三菱電機株式会社 | Elevator main rope device |
| US5172782A (en) * | 1991-11-15 | 1992-12-22 | Otis Elevator Company | Pivot mount of elevator load-weighing at car hitch |
| US5306879A (en) * | 1992-01-30 | 1994-04-26 | Inventio Ag | Load measuring apparatus for an elevator car |
| JPH06255933A (en) * | 1993-03-03 | 1994-09-13 | Otis Elevator Co | Detector of overload of elevator |
| FI107249B (en) * | 1996-12-20 | 2001-06-29 | Kone Corp | Method and apparatus for measuring the load of an elevator |
-
2003
- 2003-04-07 WO PCT/JP2003/004404 patent/WO2004089802A1/en active Application Filing
- 2003-04-07 CN CN03807942.9A patent/CN1665737A/en active Pending
- 2003-04-07 EP EP03816287A patent/EP1612176A4/en not_active Withdrawn
- 2003-04-07 JP JP2004553526A patent/JPWO2004089802A1/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588061A (en) * | 2013-11-29 | 2014-02-19 | 日立电梯（中国）有限公司 | Elevator weighing device |
| CN103588061B (en) * | 2013-11-29 | 2016-03-09 | 日立电梯（中国）有限公司 | Elevator weighing apparatus |
| CN103754717A (en) * | 2014-01-24 | 2014-04-30 | 广西建工集团建筑机械制造有限责任公司 | Lifting weight limiting device of building hoist |
| CN103754717B (en) * | 2014-01-24 | 2016-09-14 | 广西建工集团建筑机械制造有限责任公司 | A kind of elevating capacity limiting apparatus of building hoist |
| CN110023225A (en) * | 2016-12-09 | 2019-07-16 | 三菱电机株式会社 | The scale device of elevator |
| CN110023225B (en) * | 2016-12-09 | 2020-11-13 | 三菱电机株式会社 | Elevator scale device |
| CN107662863A (en) * | 2017-07-28 | 2018-02-06 | 冯锦文 | A kind of elevator anti-drop method |
| CN112079217A (en) * | 2020-10-09 | 2020-12-15 | 上海昶屹机电科技有限公司 | Elevator car load real-time detection system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2004089802A1 (en) | 2006-07-06 |
| WO2004089802A1 (en) | 2004-10-21 |
| EP1612176A4 (en) | 2009-08-05 |
| EP1612176A1 (en) | 2006-01-04 |
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