CN101746652B - Elevator control device - Google Patents
Elevator control device Download PDFInfo
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- CN101746652B CN101746652B CN200810178777A CN200810178777A CN101746652B CN 101746652 B CN101746652 B CN 101746652B CN 200810178777 A CN200810178777 A CN 200810178777A CN 200810178777 A CN200810178777 A CN 200810178777A CN 101746652 B CN101746652 B CN 101746652B
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- rope
- elevator
- control gear
- elevator control
- detection unit
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Abstract
The invention provides an elevator control device, which can control resonance of elevator cords occurred when long period vibration is generated in a building installed with elevator, and can avoid elevator cords from contacting with the well or hooking on equipments by controlling resonance of elevator cords. The inventive elevator control device is provided with an inclination detecting unit in the elevator installed with cords for ascending and descending the elevator car and the counter-weight, the inclination detecting unit is arranged on the fixed part of the cord end and used for detecting inclination of the fixed part of the cord end.
Description
Technical field
The present invention relates to elevator control gear.
Background technology
About be used to suppress the elevator control gear that elevator rope waves in the past; Known following structure: elevator is in a distolateral car framework that is lifting car that is wound in the rope on the towing machine; Another distolateral counterweight that lifting at said rope; This elevator possesses the restraining device that waves of the lateral oscillation vibration that is used to suppress said rope, and it is inserted logical said rope and also is fixed on (for example with reference to patent documentation 1) on the said car framework.
[patent documentation 1] TOHKEMY 2006-193256 communique
Known like depth of building (H) though to surpass the single order natural period of high-rise of 60m different with the structure of this building; But (for example be roughly about (H [m]/1 [m]) * 0.025 [sec]; If depth of building (H) is 100m, then the single order natural period is about 2.5 seconds).On the other hand, the rope that car is gone up and down that is provided with on the elevator in being installed on building has the natural period of confirming according to its length (i.e. car position in the running), density and tension force etc.
High-rise is when suffering long period earthquake and high wind; Owing to continue in the horizontal direction to wave with said single order natural period; So be located at the machine room of towing machine etc. that is used to accommodate elevator of top of building, be continuously applied macrocyclic displacement and encourage and shake, the natural period of the natural period of building and rope near the time; Rope resonates and significantly waves, and existence possibly cause producing the problem that contacts or collude extension with hoistway.
And; Under the situation of the resonance that produces elevator rope, also have and to cause the contacting of elevator rope and hoistway, elevator rope to be hooked on the problem that the floor of being located in the hoistway is stopped on the plate equipment such as (implantation プ レ one ト) and brought out the infringement etc. of equipment such as floor stop plate.
And; In the elevator control gear that patent documentation 1 disclosed inhibition elevator rope in the past waves; The restraining device that waves that is provided with for the lateral oscillation vibration that suppresses rope forms the structure that is configured on the rope ends fixed part, but when rope resonated because of phugoid and on rope, form standing wave, cable end became the node of standing wave generally speaking; So the amplitude of cable end is little, therefore there is the problem that is difficult to obtain bigger inhibition of vibration.
Summary of the invention
The present invention proposes in order to address the above problem, and a kind of elevator control gear that can be suppressed at the elevator rope resonance that takes place when the building that elevator is installed produces phugoid is provided.
Elevator control gear of the present invention constitutes; In having the elevator that makes the rope that car and counterweight go up and down; Have tilt detection unit, this tilt detection unit is arranged on the rope ends fixed part of the end of fixing said rope, is used to detect the inclination of said rope ends fixed part.
The present invention relates to a kind of elevator control gear; In having the elevator that makes the rope that car and counterweight go up and down, be provided with tilt detection unit; This tilt detection unit is arranged on the fixed part of said rope ends; Be used to detect the inclination of said rope ends fixed part, can be suppressed at the elevator rope resonance that takes place when the building that elevator is installed produces phugoid thus, bring into play following effect through the resonance that suppresses elevator rope simultaneously; That is what, can prevent elevator rope and hoistway contacts, prevents that elevator rope is hooked on the floor of being located in the hoistway and stops on the equipment such as plate and prevent that floor from stopping the infringement of equipment such as plate etc.
Description of drawings
Fig. 1 is illustrated in the elevator of 2: 1 wiring ratios of embodiment of the present invention 1, the instruction diagram of the state that rope vibrates because of phugoid.
Fig. 2 is rope ends fixed part (fag end fixed part) front view just often of expression embodiment of the present invention 1.
Fig. 3 is the front view of the rope ends fixed part (fag end fixed part) of expression embodiment of the present invention 1 when tilting.
Fig. 4 is the birds-eye view that is illustrated in normal condition when adopting displacement pickup as tilt detection unit in the embodiment of the present invention 1, the rope ends fixed part.
Fig. 5 is the birds-eye view that is illustrated in heeling condition when adopting displacement pickup as tilt detection unit in the embodiment of the present invention 1, the rope ends fixed part.
Fig. 6 is the diagram of circuit of the action of expression embodiment of the present invention 1.
Fig. 7 is illustrated in the elevator of 1: 1 wiring ratio of embodiment of the present invention 1, the instruction diagram of the state that rope vibrates because of phugoid.
Fig. 8 is the front view just often of the rope ends fixed part of expression embodiment of the present invention 2.
The front view of the state when Fig. 9 is the resonance frequency of rope of rope ends fixed part of expression control embodiment of the present invention 2.
Figure 10 is the diagram of circuit of the action of expression embodiment of the present invention 2.
Label declaration
1 hoistway; 2 cars; 3 counterweights; 4 machine rooms; 5 towing machines; 6 deflectors wheel; 7 main ropes; 8a car hanging wheel; 8b counterweight hanging wheel; 9 fag end fixed parts; 10 compensating rope sheaves; 11 compensates rope; 12 control housings; 13 control cables; 14 shanks; 15 fag end fixed beams; 16 inserting holes; 17 shackle springs; 18 spring perches; 19 nuts; 20 tilt detection unit; 20a directions X test section; 20b Y direction test section; 21 areal of supports; 22 hydraulic jacks; 23 Hydraulic Pumps; 24 valves; 25 displacement pickups.
The specific embodiment
Fig. 1～Fig. 7 relates to embodiment 1 of the present invention; Fig. 1 is illustrated in the elevator of 2: 1 wiring ratios; The instruction diagram of the state that rope vibrates because of phugoid; Fig. 2 is expression rope ends fixed part (fag end fixed part) front view just often, birds-eye view just often when the front view when Fig. 3 is expression rope ends fixed part (fag end fixed part) inclination, Fig. 4 are expression tilt detection unit employing displacement pickup, the rope ends fixed part; Birds-eye view when Fig. 5 is the inclination when adopting displacement pickup, the rope ends fixed part of expression tilt detection unit; Fig. 6 is the diagram of circuit of action of this embodiment 1 of expression, and Fig. 7 is illustrated in the elevator of 1: 1 wiring ratio, the instruction diagram of the state that rope vibrates because of phugoid.
In the drawings, but 1 expression free lifting dispose the hoistway of the elevator of car 2 and counterweight 3, said car 2 rests against each not shown floor.Machine room 4 above said hoistway 1 is provided with towing machine 5 and deflector wheel 6, takes turns the main rope 7 of reeling on 6 at these towing machines 5 and deflector.One side of said main rope 7 is wound on the car hanging wheel 8a and by conversion direction; This car hanging wheel 8a can be rotated freely the top that the earth's axis is installed in said car 2; On the fag end fixed part 9 above the said hoistway 1, fixing the rope ends of said main rope 7 one sides; The opposite side of said main rope 7 is wound on the counterweight hanging wheel 8b and by conversion direction; This counterweight hanging wheel 8a can be rotated freely the top that the earth's axis is installed in said counterweight 3, the rope ends of on the fag end fixed part 9 above the said hoistway 1, fixing the opposite side of said main rope 7.
Be provided with compensating rope sheave 10 in the bottom of said hoistway 1, the compensates rope 11 of on this compensating rope sheave 10, reeling.One end of this compensates rope 11 is connected with the bottom of said car 2, and the other end of this compensates rope 11 is connected with the bottom of said counterweight 3.And said car 2 is electrically connected through control cable 13 with control housing 12.
14 expression shanks are connecting said main rope 7 at the one of which end.Lead in the inserting hole 16 that is located on the fag end fixed beam 15 but insert with main rope a side free floating opposite of this shank 14; After passing shackle spring 17 and spring perch 18, nut 19 is screwed above that, constitute the said fag end fixed part 9 of fixing said main rope 7 ends of elastic support as stated.
And; On said spring perch 18, be provided with tilt detection unit 20 (but for example the acceleration pick-up of angular transducer and instrumentation static acceleration etc.), the degree of dip of these tilt detection unit 20 detected said shanks 14 is exported to control housing 12 as electric signal over time.
In addition; But said tilt detection unit 20 also can not be provided with the acceleration pick-up of angular transducer and instrumentation static acceleration etc. on said spring perch 18, and directions X test section 20a and the Y direction test section 20b (Fig. 4, Fig. 5) that uses displacement pickup is set.
The action of this embodiment of flowcharting of Fig. 6.
Step S0 representes the state of elevator normal operation, and under this state, the degree of dip of said tilt detection unit 20 detected said shanks 14 is exported to control housing 12 as electric signal over time.
Said shank 14 is because the action of said towing machine 5 etc. and often vibration, so in following step S1, to implement to have the for example low-pass filtering treatment of 1Hz cutoff frequency at the signal of step S0 output, remove the radio-frequency component as external disturbance.
Then, change step S2 over to, use the signal of in step S1, having removed external disturbance, judge whether the degree of dip of said shank 14 surpasses predetermined threshold value.Wherein, when the degree of dip that is judged as said shank 14 does not surpass predetermined threshold value, return step S0, continue to keep watch on signal from said tilt detection unit 20 outputs.
On the other hand, when the degree of dip that in step S2, is judged as said shank 14 surpasses predetermined threshold value, change step S3 over to, said car 2 is kept out of the way to the floor of taking refuge.It is different with the natural frequency of the rope of confirming according to the position of said car 2 that this floor of taking refuge is confirmed as the natural frequency that makes building.
In addition, in the judgement of step S2, also can have certain surplus and judge.
After in step S3, making said car 2 keep out of the way the said floor of taking refuge, change step S4 over to, standby reaches below the predetermined threshold value up to the degree of dip or the waving of building of said shank 14.Then, after standby, reach predetermined threshold value when following, change following step S5 over to waving of degree of dip that is judged as said shank 14 or building.In this step S5, make said car 2 low-speed running in terminal floor, whether the torque of carrying out said towing machine 5 safety verification whether abnormal sound input etc. is arranged in the microphone (not shown) in the said hoistway 1 takes place unusually, is located at.And, when not noting abnormalities, confirming as under the safe situation, change step S7 over to from step S6, revert to normal operation, repeat a series of flow processs that begin from step S0 once more.
On the other hand, when in step S6, noting abnormalities, change step S8 over to, elevator is shut down, unusual to circulars such as the maintenance company of elevator or the centers of taking precautions against natural calamities in the building simultaneously, finish a series of flow processs.
In the elevator control gear that constitutes as stated; Keep watch on the resonance of the elevator rope that building that elevator is installed takes place when producing phugoid always; When detecting elevator rope generation resonance; Make car move to the natural frequency position different of building, can suppress the resonance of elevator rope thus with the natural frequency of elevator rope.
And,, can prevent that the contacting of elevator rope and hoistway, elevator rope are hooked on the floor of being located in the hoistway and stop on the equipment such as plate and the infringement of equipment such as floor stop plate etc. through suppressing the resonance of elevator rope.
In addition, after car is taken refuge, before beginning normal operation once more; Make car low-speed running in terminal floor, and carry out safety verification, just in case when noting abnormalities; Elevator is shut down; Unusual to circulars such as the maintenance company of elevator or the centers of taking precautions against natural calamities in the building rapidly simultaneously, so can prevent failsafety, resume work rapidly.
In addition, the embodiment of the elevator of 2: 1 wiring ratios has been described more than, but equally also can in the elevator of shown in Figure 71: 1 wiring ratio, have been implemented.In this case; Do not use can rotate freely among Fig. 1 the earth's axis be installed in said car 2 top said car hanging wheel 8a and can rotate freely the said counterweight hanging wheel 8b that the earth's axis is installed in the top of said counterweight 3; But direct both ends of fixing said main rope 7 on the top of the top of said car 2 and said counterweight 3 respectively constitute fag end fixed part 9.
Fig. 8～Figure 10 relates to embodiment 2 of the present invention; Fig. 8 is the front view of the normal condition of expression rope ends fixed part; The front view of the state when Fig. 9 is the rope resonance frequency of expression tricing line bitter end fixed part, Figure 10 is the diagram of circuit of the action of this embodiment of expression.In Fig. 8 and Fig. 9, the label identical with Fig. 2 and Fig. 3 represented same section or cooresponding part, and omits explanation.
As noted earlier, the natural frequency of elevator rope waits to confirm according to its length (being the car position in the operation process), density and tension force.In embodiment 1; Control the natural frequency of elevator rope through the position of regulating car, thereby suppress the resonance with building, but herein in the embodiment 2 of explanation; Control the natural frequency of elevator rope through the tension force of regulating elevator rope, thereby suppress the resonance with building.
Promptly; On the architecture basics of embodiment 1; Also be provided with actuator and displacement pickup 25 at said fag end fixed part 9, said actuator is by constituting with the lower part: hydraulic jack 22, and it regulates the high and low position of areal of support 21 of the lower end institute butt of said shackle spring 17; Hydraulic Pump 23, it applies hydraulic pressure to said hydraulic jack 22; And get involved the valve 24 between said hydraulic jack 22 and the said Hydraulic Pump 23, the high and low position of the said areal of support 21 of said displacement pickup 25 instrumentations, and this instrumentation value exported to said control housing 12.
The action of this embodiment of flowcharting of Figure 10.
Step S10 representes the state of elevator normal operation, and under this state, the degree of dip of said tilt detection unit 20 detected said shanks 14 is exported to control housing 12 as electric signal over time.
Said shank 14 is because action of said towing machine 5 etc. and often vibration so in following step S11, the signal of in step S10, exporting is implemented to have the for example low-pass filtering treatment of 1Hz cutoff frequency, is removed the radio-frequency component as external disturbance.
Then, change step S12 over to, use the signal of in step S11, having removed external disturbance, judge whether the degree of dip of said shank 14 surpasses predetermined threshold value.Wherein, when the degree of dip that is judged as said shank 14 does not surpass predetermined threshold value, return step S10, continue to keep watch on signal from said tilt detection unit 20 outputs.
On the other hand, when the degree of dip that in step S12, is judged as said shank 14 surpasses predetermined threshold value, change step S13 over to, make counting machine increase counting, this counting machine is used for the degree of dip of said shank 14 is so far surpassed the number of times of predetermined threshold to be counted.
In addition, identical with embodiment 1 in the judgement of step S12, also can have certain surplus and judge.
And, in step S13, after making said counting machine increase counting, change step S14 over to, judge whether said counting is even number.Wherein, When said counting is even number; Change step S15 over to, be controlled to be: utilize said hydraulic jack 22, make the high and low position of the said areal of support 21 that bears the said shank 14 relevant with specific said main rope 7; The direction that reduces to the tension force of said specific main rope 7 changes, thereby the natural frequency that makes building is with different by the natural frequency of the definite rope of the tension force of said main rope 7.On the other hand; When said counting is odd number; Change step S16 over to, be controlled to be: utilize said hydraulic jack 22, make the high and low position of the said areal of support 21 that bears the said shank 14 relevant with specific said main rope 7; The direction that increases to the tension force of said specific main rope 7 changes, thereby makes the natural frequency of building different with the natural frequency of rope.
In addition; In step S15 and step S16; When utilizing said hydraulic jack 22 to change the high and low position of said areal of support 21; Utilize the high and low position variable quantity of the said areal of support 21 of said displacement pickup 25 instrumentations, this instrumentation value is fed back to said control housing 12, the tension force of controlling said main rope 7 thus can be not excessive or too small.
After in step S15 and step S16, regulating the tension force of said specific main rope 7, change step S17 over to, standby reaches below the predetermined threshold value up to the degree of dip or the waving of building of said shank 14.Then, after standby, reach predetermined threshold value when following waving of degree of dip that is judged as said shank 14 or building; Change following step S18 over to, further wait for, utilize said hydraulic jack 22 then through the schedule time; Make the high and low position of the said areal of support 21 that bears the said shank 14 relevant with said specific main rope 7, the direction of restoring to the tension force of said specific main rope 7 changes, promptly; Via under the situation of step S15, the direction that the tension force to said specific main rope 7 is increased changes, via under the situation of step S16; The direction that tension force to said specific main rope 7 is reduced changes; After the natural frequency that makes rope restores to the original state, revert to normal operation, repeat a series of flow processs that begin from step S10 once more.
In the elevator control gear that constitutes as stated; Keep watch on the resonance of the elevator rope that when the building that elevator is installed produces phugoid, takes place always; When detecting elevator rope generation resonance; With the tension adjustment of elevator rope is the natural frequency tension force different with the natural frequency of elevator rope that makes building, can suppress the resonance of elevator rope thus, and the running of elevator is stopped; Simultaneously through suppressing the resonance of elevator rope, can prevent that the contacting of elevator rope and hoistway, elevator rope are hooked on the floor of being located in the hoistway and stop on the equipment such as plate and the infringement of equipment such as floor stop plate etc.
And, the number of times that detects elevator rope generation resonance is counted, control the increase and decrease direction of the tension force of elevator rope according to this number of times, so can make the wearing and tearing of the rope sheave that is wound with elevator rope even.
In addition, above structure can be implemented in any elevator of 2: 1 wiring ratios and 1: 1 wiring ratio, and this point is identical with embodiment 1.
Claims (8)
1. elevator control gear; Be used to control and have the elevator that makes the rope that car and counterweight go up and down; It is characterized in that; Said elevator control gear has tilt detection unit, and said tilt detection unit is arranged on the rope ends fixed part of the end of fixing said rope, is used to detect the inclination of said rope ends fixed part.
2. elevator control gear according to claim 1 is characterized in that, said tilt detection unit detects at least one in displacement, speed, acceleration/accel and the angle of said rope ends fixed part.
3. elevator control gear according to claim 1 is characterized in that, said elevator control gear has the low-pass filter of from the instrumentation value of said tilt detection unit, removing radio-frequency component.
4. according to each described elevator control gear in the claim 1～3; It is characterized in that; Said elevator control gear is kept watch on the instrumentation value of said tilt detection unit always, when said instrumentation value surpasses predetermined threshold value, said car is kept out of the way to the floor of taking refuge.
5. elevator control gear according to claim 4 is characterized in that, the said floor of taking refuge is confirmed as, and making the natural period that building had that said elevator is installed is the different cycles with the natural period that said rope has.
6. according to each described elevator control gear in the claim 1～3; It is characterized in that; Said elevator control gear has the rope tension regulon of the tension force of the above rope of any adjusting; And said elevator control gear is kept watch on the instrumentation value of said tilt detection unit always; When said instrumentation value surpasses predetermined threshold value, be following tension force with the tension adjustment of the above rope, this tension force is confirmed as and makes the natural period that building had that said elevator is installed is the different cycles with the natural period that said rope has.
7. elevator control gear according to claim 6 is characterized in that, said rope tension regulon has actuator.
8. elevator control gear according to claim 6; It is characterized in that; Said elevator control gear has counting unit; The number of times that said counting unit is regulated through said rope tension regulon the tension force of the above rope is counted, and according to the said number of times that said counting unit is counted, controls the increase and decrease direction of the tension force of the above rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810178777A CN101746652B (en) | 2008-12-01 | 2008-12-01 | Elevator control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810178777A CN101746652B (en) | 2008-12-01 | 2008-12-01 | Elevator control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101746652A CN101746652A (en) | 2010-06-23 |
| CN101746652B true CN101746652B (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810178777A Expired - Fee Related CN101746652B (en) | 2008-12-01 | 2008-12-01 | Elevator control device |
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| CN (1) | CN101746652B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5701589B2 (en) * | 2010-12-15 | 2015-04-15 | 東芝エレベータ株式会社 | elevator |
| WO2014030215A1 (en) * | 2012-08-22 | 2014-02-27 | 株式会社 日立製作所 | Elevator device |
| CN105593153A (en) * | 2013-09-24 | 2016-05-18 | 奥的斯电梯公司 | Rope sway mitigation through control of access to elevators |
| DE112018007620T5 (en) * | 2018-05-15 | 2021-01-28 | Mitsubishi Electric Corporation | Vibration dampening device and elevator device |
| DE112018007842T5 (en) * | 2018-07-20 | 2021-04-01 | Mitsubishi Electric Corporation | Elevator rope termination structure |
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2008
- 2008-12-01 CN CN200810178777A patent/CN101746652B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101746652A (en) | 2010-06-23 |
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