CN101932520B - Elevator device and method of testing the same - Google Patents
Elevator device and method of testing the same Download PDFInfo
- Publication number
- CN101932520B CN101932520B CN2008801259976A CN200880125997A CN101932520B CN 101932520 B CN101932520 B CN 101932520B CN 2008801259976 A CN2008801259976 A CN 2008801259976A CN 200880125997 A CN200880125997 A CN 200880125997A CN 101932520 B CN101932520 B CN 101932520B
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- China
- Prior art keywords
- car
- counterweight
- confining force
- lift appliance
- suspension unit
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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
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
-
- 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
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
- B66B5/0093—Testing of safety devices
Abstract
In an elevator apparatus, a car is suspended by suspension means on one side of a drive sheave. A counterweight is suspended by the suspension means on the other side of the drive sheave. A safety device, which is engaged with car guide rails to cause the car to make an emergency stop, is mounted to the car. For conducting a test for verifying actuation of the safety device, a retention force application device applies a retention force less than an unbalanced load of the car and the counterweight to the suspension means on a counterweight side of the drive sheave.
Description
Technical field
The present invention relates to the lift appliance of emergency braking device and the test method that the work of this emergency braking device is confirmed are installed at car.
Background technology
Generally, in the lift appliance of draw mode, when test is implemented in the work of emergency braking device, under the state that makes emergency braking device work, make towing machine to the direction running that car is descended.Then, rope sheave dallies, car does not descend, and then is judged as emergency braking device normal operation (for example, with reference to patent documentation 1) if drive.
In the test method of aforesaid emergency braking device, need make to drive the rope sheave rotation and surpass the traction limit and skid fully up to rope, therefore need satisfy the condition of following formula.
W2/W1≥Γs......(1)
Wherein, W1 is the weight of car, and W2 is the weight of counterweight, the pulling ability when Γ s is the traction limit.
In addition, when the diameter of establishing the driving rope sheave was D, the torque Ts1 that produces the required driving rope sheave of rope slipping was expressed by following formula.
Ts1＝D/2×(W2-W1)......(2)
Then, through being updated to formula (2), formula (1) obtains following formula.
Ts1＝D/2×W2×(1-1/Γs)......(3)
Hence one can see that, when the weight of counterweight becomes big, makes to drive the required torque increase of rope sheave idle running.
For example, when the rated load of establishing lift appliance was CAP, overbalance torque T0 calculated through following formula.Wherein, establish W2=W1+0.5CAP.
T0＝D/2×[(W1+CAP)-W2]＝0.25CAP×D......(4)
Relative therewith; For example when the contact angle that the shape coefficient of establishing the rope groove shape (being assumed to 40 ° V-shaped groove) that drives rope sheave is K2=1/sin (40/2)=2.92, to drive friction coefficient between rope sheave and the rope be μ=0.2, drive rope sheave and rope is θ=150 °, the following formula establishment.
Ts1＝D/2×W2×[1-1/(e
2.92×0.2×150/180×π)]
＝0.783×W2×D/2......(5)
Here, when the weight W of establishing car 1 is 1.5 * CAP, W2=2.0CAP (weight of rope class is ignored), so following formula is set up.
Ts1＝0.783CAP×D......(6)
Comparison expression (4) and formula (6); The required torque Ts1 of idle running that drives rope sheave is about 3 times of overbalance torque T0; Even consider the required torque of the acceleration and deceleration of car (be generally overbalance torque T0 about 2 times); Be merely the work comfirmation test of emergency braking device, just needed very big motor torque.
In addition, the lift appliance of traction-type is required to have such performance: arrived at car or counterweight under the state of energy disperser of hoistway bottom, driven the rope sheave rotation, also no longer further promoted counterweight or car even continue to make.As the test method that is used to confirm to satisfy this performance; There is such method: under the strictest condition; Promptly; In that to make car be no-load condition and will put heavy duty on the energy disperser, make and drive rope sheave under the state of the direction rotation that car is risen then, confirm with respect to rope idle running driving rope sheave.
The required torque Ts2 of driving rope sheave idle running is tried to achieve by following formula.
Ts2＝D/2×(W1-W2)＝D/2×W1×(1-1/Γs)......(7)
Here, when establishing W1=1.5CAP, following formula is set up.
Ts2＝0.587CAP......(8)
Even required maximum torque considers that the emergency operation state also still is the torque shown in the formula (8) under the operative condition of lift appliance, the torque required with respect to the work comfirmation test of emergency braking device of this maximum torque is about 75%.
Patent documentation 1: TOHKEMY 2007-8611 communique
In aforesaid existing lift appliance, in order to carry out the work comfirmation test of emergency braking device, need very big motor torque, thereby towing machine maximizes.
Summary of the invention
The present invention accomplishes for the problem that solves above-mentioned that kind, and its purpose is to obtain the required motor torque of a kind of work comfirmation test that can reduce emergency braking device and makes the lift appliance and the test method thereof of towing machine miniaturization.
Lift appliance of the present invention comprises: towing machine, and it has the driving rope sheave; Suspension unit, it is around being hung on the driving rope sheave; Car, it is suspended the unit suspention in a side that drives rope sheave; Counterweight, it is suspended the unit suspention at the opposite side that drives rope sheave; Car guide rail, the up-down of its guiding car; Emergency braking device, it is installed on car, and through engaging with car guide rail car is promptly stopped; And the confining force additional device, it applies the confining force less than the unbalance load between car and the counterweight in a side of leaning on counterweight that drives rope sheave to suspension unit when the work comfirmation test of carrying out emergency braking device.
The test method of lift appliance of the present invention comprises following operation: suspention is had the suspension unit of car and counterweight apply the confining force less than the unbalance load between car and the counterweight in a side of leaning on counterweight that drives rope sheave, make the operation of towing machine to the direction running that car is risen simultaneously; Make the operation of the emergency braking device work that is installed on car; And make towing machine to the direction running that car is descended and to driving the operation whether rope sheave dallies and confirm.
Description of drawings
Fig. 1 is the lateral plan of expression embodiment 1 described lift appliance of the present invention.
Fig. 2 is the constructional drawing that amplifies the confining force additional device in the presentation graphs 1.
Fig. 3 is the lateral plan of expression embodiment 2 described lift appliances of the present invention.
Fig. 4 is the lateral plan that amplifies the counterweight in the presentation graphs 3.
Fig. 5 is the lateral plan of expression embodiment 3 described lift appliances of the present invention.
The specific embodiment
Below, with reference to accompanying drawing preferred implementation of the present invention is described.
Embodiment 1
Fig. 1 is the lateral plan of expression embodiment 1 described lift appliance of the present invention.In the drawings, be provided with machine room 2 on the top of hoistway 1.In machine room 2, be provided with support 3.At support 3 upper supports towing machine 4 is arranged.Towing machine 4 has rope sheave of driving 5 and tractor main body 6.Tractor main body 6 has: the electrical motor that makes the towing machine that drives rope sheave 5 rotations; And the traction machine brake that the rotation that drives rope sheave 5 is braked.
At support 3 diversion sheave 7 is installed.Driving rope sheave 5 and diversion sheave 7 around many main ropes 8 that hang with as suspension unit.The part that is positioned at a side of leaning on counterweight 10 that drives rope sheave 5 of main rope 8 is around being hung on diversion sheave 7.As main rope 8, for example use the cross section to be the rope of circle or banded rope etc.
In the suspention of an end of main rope 8 car 9 is arranged.That is, car 9 is suspended in the hoistway 1 by main rope 8 in a side that drives rope sheave 5.In the other end of main rope 8 suspention counterweight 10 is arranged.That is, counterweight 10 is suspended in midair by main rope 8 at the opposite side that drives rope sheave 5.
In hoistway 1, be provided with a pair of car guide rail 11 and a pair of counterweight guide rail 12 of up-down of guiding counterweight 10 of the up-down of guiding car 9.At car 9 emergency braking device 13 is installed, thereby this emergency braking device 13 engages with car guide rail 11 car 9 is promptly stopped.
At support 3 confining force additional device 14 is installed, when the work comfirmation test of carrying out emergency braking device 13,14 pairs of main ropes 8 of this confining force additional device apply predetermined confining force.The confining force that 14 pairs of main ropes 8 of confining force additional device apply is less than the unbalance load between car 9 and the counterweight 10.In addition, confining force additional device 14 applies confining force in a side of leaning on counterweight 10 that drives rope sheave 5 to main rope 8.In addition, under service (service) state of the lift appliance except that the work comfirmation test of emergency braking device 13 time, confining force additional device 14 is to main rope 8 additional confining forces.
Fig. 2 is the constructional drawing that amplifies the confining force additional device 14 in the presentation graphs 1.Be fixed with support unit 15 at support 3.Be fixed with connecting element 16 at support unit 15.Be fixed with and main rope 8 opposed fixation side friction means 17 at connecting element 16.In addition, be provided with a plurality of guide rod 18a, 18b in connecting element 16 settings.
Be supported with movable piece 19 at guide rod 18a, 18b.Movable piece 19 can along guide rod 18a, 18b with 17 contacts of fixation side friction means, the direction displacement that separates.At movable piece 19, be fixed with and main rope 8 opposed movable side friction means 20.At guide rod 18a, 18b, be provided with a plurality of confining force additional springs (compression spring) 21a, the 21b of movable piece 19 to the connecting element 16 side application of forces.
In addition, between connecting element 16 and movable piece 19, be provided with stopper unit (not shown), this stopper unit opposing confining force additional springs 21a, 21b remain the state that leaves from fixation side friction means 17 with movable side friction means 20.Confining force additional device 14 is as the additional brake (wire stopper) that is described below and the performance function: this additional brake is when the work comfirmation test of emergency braking device 13; Through removing stopper unit; Come between fixation side friction means 17 and movable side friction means 20, directly to control (clamping) main rope 8; Thereby main rope 8 is carried out friction braking, thus main rope 8 is applied confining force.
Like this; Confining force additional device 14 when the work comfirmation test of emergency braking device 13 or running stop time work; And when common running or when promptly stopping, confining force additional device 14 is not worked, the mechanism that therefore need unclamp and work by electricity unlike common drg that kind.Therefore, stopper unit can be made up of the such simple mechanism of M/C.
Next, the method to the work comfirmation test of emergency braking device 13 describes.At first, remove stopper unit, utilize 14 pairs of main ropes 8 of confining force additional device to apply confining force.Under this state, to the direction that car 9 the is risen towing machine 4 that manually turns round.Thus, in the tension force of the part of leaning on counterweight 10 sides that is hung on the main rope 8 that drives rope sheave 5, reduce with the cooresponding tension force of confining force that produces by confining force additional device 14.
Then, make the rope catcher work of velocity limiter, thereby make emergency braking device 13 work.Then, make driving rope sheave 5 to the direction rotation that car 9 is descended.Then, whether dally and confirm driving rope sheave 5.
Under the situation of the work comfirmation test of having carried out emergency braking device 13 with such step, the tension force that drives the main rope 8 of rope sheave 5 parts reduces, and therefore can reduce the required motor torque that dallies, and can make towing machine 4 miniaturizations.
For example; When establishing 90% the confining force that confining force additional device 14 has unbalance load (in car 9, do not have be generally under passenger's the state rated load 50%); When if the weight of car 9 is 1.5 * CAP; W2=2.0CAP (omitting the weight of rope class), the required torque of therefore dallying is calculated through following formula, has been reduced to 77% with respect to the situation of not using confining force additional device 14.
Ts1’＝D/2×W2’×(1-1/Γs)＝D/2×(W2-0.5CAP×0.9)×(1-1/Γs)＝0.607CAP×D
In addition,, then there is such possibility if confining force additional device 14 has the above confining force of unbalance load: though emergency braking device 13 normal operation not, the whereabouts that has also stoped car 9 through the confining force of confining force additional device 14.On the contrary, if the confining force of confining force additional device 14 is less than unbalance load, then counterweight 10 moves to descent direction when having discharged traction machine brake, thereby can prove that car 9 is not held power additional device 14 and keeps.
Next, Fig. 3 is the lateral plan of expression embodiment 2 described lift appliances of the present invention, and Fig. 4 is the lateral plan that amplifies the counterweight 10 in the presentation graphs 3.In this example, in the upper and lower of counterweight 10 confining force additional device 22 is installed.The structure of each confining force additional device 22 is identical with the confining force additional device 14 of Fig. 2, but connecting element 16 is fixed in counterweight 10.And, fixation side friction means 17 and movable side friction means 20 clamping counterweight guide rails 12.
The confining force additional device 22 of embodiment 2 is clamping counterweight guide rail 12 when the work comfirmation test of carrying out emergency braking device 13; Thereby counterweight 10 is carried out friction braking; Thus, in a side of leaning on counterweight 10 that drives rope sheave 5 main rope 8 is applied the confining force less than unbalance load.Other structure is identical with embodiment 1 with test method.
Through such structure and test method, also can reduce to drive the tension force of the main rope 8 of rope sheave 5 parts, therefore can reduce the required motor torque that dallies, can make towing machine 4 miniaturizations.
Next, Fig. 5 is the lateral plan of expression embodiment 3 described lift appliances of the present invention.In the drawings, be provided with confining force additional device 23 at diversion sheave 7.Confining force additional device 23 is braked the rotation of diversion sheave 7 when the work comfirmation test of carrying out emergency braking device 13, thus, in a side of leaning on counterweight 10 that drives rope sheave 5 main rope 8 is applied the confining force less than unbalance load.Other structure is identical with embodiment 1 with test method.
Through such structure and test method, also can reduce to drive the tension force of the main rope 8 of rope sheave 5 parts, therefore can reduce the required motor torque that dallies, can make towing machine 4 miniaturizations.
In addition, have such situation: the winding angle of main rope 8 on diversion sheave 7 is very little, both just the rotation of diversion sheave 7 is braked, and main rope 8 also can skid, thereby can't obtain required effect.Under these circumstances, can utilize high friction material to constitute the groove face of the main rope 8 of insertion of diversion sheave 7.In addition, also can directly brake the part around hanging main rope 8 of diversion sheave 7.That is, also can and diversion sheave 7 between clamping master rope 8.In addition, also can be when the work comfirmation test of carrying out emergency braking device 13, at the periphery around the part that is hung on diversion sheave 7 of the main rope 8 high friction material of reeling.
In addition, in above-mentioned example, show the lift appliance of 1: 1 baudrier, but be not limited thereto, for example the present invention also can be applied in the lift appliance of 2: 1 baudriers.
Claims (8)
1. a lift appliance is characterized in that,
Said lift appliance comprises:
Towing machine, it has the driving rope sheave;
Suspension unit, it is around being hung on said driving rope sheave;
Car, its side at said driving rope sheave is suspended in midair by said suspension unit;
Counterweight, its opposite side at said driving rope sheave is suspended in midair by said suspension unit;
Car guide rail, it guides the up-down of said car;
Emergency braking device, it is installed on said car, and through engaging with said car guide rail said car is promptly stopped; And
The confining force additional device, it applies the confining force less than the unbalance load between said car and the said counterweight in the side of leaning on said counterweight of said driving rope sheave to said suspension unit when the work comfirmation test of carrying out said emergency braking device.
2. lift appliance according to claim 1, wherein,
Said confining force additional device carries out friction braking and comes said suspension unit is applied confining force through directly controlling said suspension unit.
3. lift appliance according to claim 1, wherein,
Said lift appliance also comprises the counterweight guide rail, the up-down of the said counterweight of this counterweight rail guidance,
Said confining force additional device is installed on said counterweight, and green phase carries out friction braking for said counterweight guide rail to said counterweight and comes said suspension unit is applied confining force.
4. lift appliance according to claim 1, wherein,
Said lift appliance also comprises diversion sheave, in the part of this diversion sheave around a side of leaning on said counterweight that hangs with the said driving rope sheave of being positioned at of said suspension unit,
Said confining force additional device applies confining force through the rotation of said diversion sheave is braked to said suspension unit.
5. lift appliance according to claim 4, wherein,
The groove face around hanging said suspension unit of said diversion sheave is made up of high friction material.
6. lift appliance according to claim 4, wherein,
Said confining force additional device and said diversion sheave between the said suspension unit of clamping.
7. lift appliance according to claim 4, wherein,
Said lift appliance also comprises high friction material, when the work comfirmation test of carrying out said emergency braking device, this high friction material be wound in said suspension unit around the part that is hung on said diversion sheave.
8. the test method of a lift appliance is characterized in that,
The test method of said lift appliance comprises following operation:
Suspention there is the suspension unit of car and counterweight apply confining force, makes the operation of towing machine simultaneously to the direction running that said car is risen less than the unbalance load between said car and the said counterweight in a side of leaning on said counterweight that drives rope sheave;
Make the operation of the emergency braking device work that is installed on said car; And
Make said towing machine to direction running that said car is descended and the operation whether said driving rope sheave is dallied and confirm.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2008/056928 WO2009125473A1 (en) | 2008-04-08 | 2008-04-08 | Elevator device and method of testing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101932520A CN101932520A (en) | 2010-12-29 |
| CN101932520B true CN101932520B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008801259976A Active CN101932520B (en) | 2008-04-08 | 2008-04-08 | Elevator device and method of testing the same |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2261161B1 (en) |
| JP (1) | JP5174894B2 (en) |
| KR (1) | KR101199046B1 (en) |
| CN (1) | CN101932520B (en) |
| WO (1) | WO2009125473A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671022B (en) * | 2013-11-26 | 2017-04-12 | 三菱电机株式会社 | Elevator control device and elevator control method |
| CN109952262B (en) * | 2016-11-21 | 2020-06-23 | 三菱电机株式会社 | Method for inspecting emergency stop device of elevator |
| CN107473037A (en) * | 2017-08-01 | 2017-12-15 | 营口市特种设备监督检验所 | Elevator governor detects corollary equipment |
| WO2019198153A1 (en) * | 2018-04-10 | 2019-10-17 | 三菱電機ビルテクノサービス株式会社 | Elevator control device enabling car to function as scaffold |
| DE112018007570T5 (en) * | 2018-05-09 | 2021-01-21 | Mitsubishi Electric Corporation | ELEVATOR DEVICE AND TESTING PROCEDURE FOR AN EMERGENCY STOP INSPECTION DEVICE |
| EP3819245A1 (en) * | 2019-11-08 | 2021-05-12 | KONE Corporation | An elevator |
| JP2021134042A (en) * | 2020-02-27 | 2021-09-13 | 株式会社日立製作所 | Testing method and power source for testing for emergency elevator stop |
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| CN1843888A (en) * | 2005-04-08 | 2006-10-11 | 东芝电梯株式会社 | Rope brake device for elevator |
| CN1845870A (en) * | 2004-06-14 | 2006-10-11 | 三菱电机株式会社 | Emergency braking device for elevator |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59212371A (en) * | 1983-05-19 | 1984-12-01 | 株式会社東芝 | Elevator |
| JP4651855B2 (en) * | 2001-05-21 | 2011-03-16 | 三菱電機株式会社 | Elevator equipment |
| JP2003002564A (en) * | 2001-06-22 | 2003-01-08 | Mitsubishi Electric Corp | Elevator device |
| CN1318287C (en) * | 2002-03-06 | 2007-05-30 | 三菱电机株式会社 | Emergency stop testing device for elevator |
| KR20040071180A (en) * | 2002-11-12 | 2004-08-11 | 미쓰비시덴키 가부시키가이샤 | Rope for elevator and elevator equipment |
| JP2004210423A (en) | 2002-12-27 | 2004-07-29 | Toshiba Elevator Co Ltd | Elevator |
| JP2006164884A (en) | 2004-12-10 | 2006-06-22 | Nissan Motor Co Ltd | Coating method and coating device of catalyst material |
| JP2006168846A (en) * | 2004-12-13 | 2006-06-29 | Mitsubishi Electric Corp | Elevator device and emergency stop testing method |
| JP4862296B2 (en) * | 2005-06-28 | 2012-01-25 | 三菱電機株式会社 | Elevator inspection method |
| JP4580828B2 (en) * | 2005-06-30 | 2010-11-17 | 株式会社日立製作所 | Elevator equipment |
| JP4706498B2 (en) * | 2006-02-20 | 2011-06-22 | 株式会社日立製作所 | Elevator test method, auxiliary device and elevator device |
| JP5073483B2 (en) | 2006-05-10 | 2012-11-14 | 三菱電機株式会社 | Elevator safety device |
-
2008
- 2008-04-08 KR KR1020107016356A patent/KR101199046B1/en active IP Right Grant
- 2008-04-08 CN CN2008801259976A patent/CN101932520B/en active Active
- 2008-04-08 EP EP08740031.3A patent/EP2261161B1/en not_active Not-in-force
- 2008-04-08 WO PCT/JP2008/056928 patent/WO2009125473A1/en active Application Filing
- 2008-04-08 JP JP2010507082A patent/JP5174894B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1845870A (en) * | 2004-06-14 | 2006-10-11 | 三菱电机株式会社 | Emergency braking device for elevator |
| CN1843888A (en) * | 2005-04-08 | 2006-10-11 | 东芝电梯株式会社 | Rope brake device for elevator |
Non-Patent Citations (2)
| Title |
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| JP特开2006-168846A 2006.06.29 |
| JP特开2007-8611A 2007.01.18 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101199046B1 (en) | 2012-11-07 |
| CN101932520A (en) | 2010-12-29 |
| JP5174894B2 (en) | 2013-04-03 |
| EP2261161A4 (en) | 2014-08-06 |
| KR20100094594A (en) | 2010-08-26 |
| EP2261161B1 (en) | 2015-01-21 |
| JPWO2009125473A1 (en) | 2011-07-28 |
| WO2009125473A1 (en) | 2009-10-15 |
| EP2261161A1 (en) | 2010-12-15 |
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