CN101602458A - Elevator device based on electronic safety tongs - Google Patents
Elevator device based on electronic safety tongs Download PDFInfo
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- CN101602458A CN101602458A CNA2009100267505A CN200910026750A CN101602458A CN 101602458 A CN101602458 A CN 101602458A CN A2009100267505 A CNA2009100267505 A CN A2009100267505A CN 200910026750 A CN200910026750 A CN 200910026750A CN 101602458 A CN101602458 A CN 101602458A
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- elevator
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- safety gear
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- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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Abstract
The invention discloses an elevator device based on an electronic safety gear, which comprises a trigger circuit, the electronic safety gear, an elevator driving system, a driving circuit, a detection circuit, a microcontroller, an elevator and a speed sensor arranged on the elevator, wherein one output end of the microcontroller is sequentially connected with the driving circuit and the elevator driving system in series and then connected with the input end of the elevator, the other output end of the microcontroller is sequentially connected with the trigger circuit and the electronic safety gear in series, the electronic safety gear is arranged at a braking part of the elevator, the output end of the elevator driving system is connected with the input end of the detection circuit, and the output end of the detection circuit and the output end of the speed sensor are respectively connected with the input end of the microcontroller. The invention has the advantages of rapid and accurate braking.
Description
Technical field
Invention relates to a kind of technical field of the lift appliance based on electronic safety gear.
Background technology
Elevator is equipped with brake equipment or safety tongs or compound type safety tongs brake equipment; it is (so-called hypervelocity) when speed is too high; for example controller et out of order, actuating device or brake equipment lost efficacy or the situation of trailing cable fracture under occur high speed the time, be used for stopping or at allowable limit value scope inside brake lift car by the friction piece that acts on guide rail.At this; brake equipment generally is understood that such device; it prevents the hypervelocity of lift car on up direction, and its way is lift car is stopped or can to stop counterweight at the end of run by the energy disperser as prescribed, and one will finish the abnormal operation of elevator thus.Different therewith, following such device is commonly called safety tongs, and it prevents the hypervelocity on down direction, in case triggering just stops lift car, in of short duration stroke lift car is fixed on the guide rail in other words simultaneously.For simplify considering, such brake equipment, safety tongs and be collectively referred to as brake equipment below the bidirectional safety tongs brake equipment.
In addition, elevator be equipped with mostly with above-mentioned meaning on the irrelevant drive side drg of brake equipment, if the actuating device electric current is cut off, this drg always starts (this generally is called as safety return circuit).
In known device, the startup of brake equipment is realized by the velocity limiter that is fixedly mounted in hoistway or the machine room.It is forced to rotate when elevator cab movement.For this reason, be provided with the speed limit rope that itself goes in ring, it one in velocity limiter (usually at the hoistway vertex) and other end locate revolution at idler roller (usually in the hoistway nadir).The speed limit rope is connected with the brake equipment or the safety tongs of lift car on certain position, so it will be driven by the motion of lift car.When excessively high speed occurring, velocity limiter pins the speed limit rope, triggers brake equipment or safety tongs thus, thereby stops lift car.
The advantage of such structure is that it is mechanically worked merely, thereby can not be subjected to the influence of power failure.But, it has many shortcomings, and one of them is exactly to be out of order easily, exactly because this it mechanically work merely, and at least tangible wearing and tearing are arranged when long-play.For this reason, the triggering speed by the decision of the inertia of such structure obviously depends on acceleration/accel, if under very low speed, very high acceleration/accel occurs, it will be triggered.If this structure is very seriously dirty, its triggering will be too late (promptly only surpass in speed and just trigger when a lot).Another shortcoming is that constructions cost is higher relatively.Cast aside real brake equipment and do not talk, the rope that goes in ring in whole hoistway is essential, and it must be directed at two up and down, and must be tensioned.
Another shortcoming is that this mechanical conceptual was at first only made a response originally when surpassing unique predetermined speed, if therefore there is not special measure, just can't be the different the highest permission speed of lift car of different piece regulation of hoistway.Concerning current express elevator, this is normally not enough.Because such elevator is with the speed operation of 10 meter per seconds, so must arrive final floor (the last or following) elevator of in time stopping before.If lift car is positioned at second floor (im ersten Stock) at down direction, then the speed of 5 meter per seconds is also too high, thereby should trigger emergency braking.
At last, known mechanical solution also is disadvantageous with regard to its rope need take up an area of along whole hoistway.It is unfavorable that this particularly is built up in the elevator car structure of corner to car door, and unfavorable to the panorama elevator of large tracts of land installing glass.The overspeed governor that extends along whole hoistway has also hindered the development tendency that dwindles well head and well.
In order there to be the ground of differentiation to trigger emergency braking, electronic solution is more suitable.Also the someone has proposed corresponding scheme.U.S. Pat 502064.0 of the same type discloses a kind of brake device for elevator, and here, the drive wheel that the speed of lift car is reeled on it by trailing cable is measured.
In this known devices, there is following problem, when rope ruptures, this failure of apparatus.Another shortcoming is that (at least) need lay an additional cable from the lift car to the machine room, be used for the drive wheel rotating speed is transferred to lift car.At last, a simple drive wheel that moves together on trailing cable neither be fully no problem, and difficulty just is will make at any time drive wheel to contact trailing cable reliably and moves.In addition, the drive wheel that moves with trailing cable just is suitable for shouldering the such special duty of accuracy control elevator car position with required precision conditionally when the elevator long-time running.Because As time goes on certain prolongation may appear in trailing cable, especially may occur more and more skidding at trailing cable with between as time passes by the drive wheel of its driving.
US5366045 discloses a kind of stand operating control, and wherein hold-down arm liftably remains on the roofbolt, and is provided with the brake equipment that the speed at hold-down arm is made response when too high.In addition, be provided with and revolution counter bonded assembly wheel, this is taken turns and is attached on the roofbolt.Described revolution counter is connected with the mechanism that is used to discern excessively high speed, and this mechanism is used to start brake equipment.This scheme can't be used for elevator in safe enough ground.Grease might touch wheel, so wheel can skid on roofbolt, tells also when rope ruptures that thus revolution counter does not have excessively high speed.Therefore, the additional identification of other tasks such as Accurate Position Control also has appreciiable problem.
Summary of the invention
The present invention seeks to provides a kind of lift appliance based on electronic safety gear at the defective that prior art exists.
The present invention adopts following technical scheme for achieving the above object:
The present invention is based on the lift appliance of electronic safety gear, it is characterized in that comprising trigger circuit, electronic safety gear, elevator drive system, driving circuit, testing circuit, microcontroller, elevator and the speed sensor that is arranged on the elevator, wherein microcontroller mouth is connected in series driving circuit successively, connect the input end of elevator behind the elevator drive system, another mouth of microcontroller is connected in series trigger circuit successively, electronic safety gear, electronic safety gear is arranged at the detent of elevator, the input end of the output termination testing circuit of elevator drive system, the mouth of testing circuit and the mouth of speed sensor connect the input end of microcontroller respectively.
The present invention adopts electronic safety gear, and braking fast, accurately.
Description of drawings
Fig. 1: constructional drawing of the present invention.
The specific embodiment
Be elaborated below in conjunction with the technical scheme of accompanying drawing to invention:
As shown in Figure 1, lift appliance based on electronic safety gear, it is characterized in that comprising trigger circuit, electronic safety gear, elevator drive system, driving circuit, testing circuit, microcontroller, elevator and the speed sensor that is arranged on the elevator, wherein microcontroller mouth is connected in series driving circuit successively, connect the input end of elevator behind the elevator drive system, another mouth of microcontroller is connected in series trigger circuit successively, electronic safety gear, electronic safety gear is arranged at the detent of elevator, the input end of the output termination testing circuit of elevator drive system, the mouth of testing circuit and the mouth of speed sensor connect the input end of microcontroller respectively.
Described lift appliance based on electronic safety gear is characterized in that described electronic safety gear is an ISG type electronic safety gear.
Claims (2)
1, a kind of lift appliance based on electronic safety gear, it is characterized in that comprising trigger circuit, electronic safety gear, elevator drive system, driving circuit, testing circuit, microcontroller, elevator and the speed sensor that is arranged on the elevator, wherein microcontroller mouth is connected in series driving circuit successively, connect the input end of elevator behind the elevator drive system, another mouth of microcontroller is connected in series trigger circuit successively, electronic safety gear, electronic safety gear is arranged at the detent of elevator, the input end of the output termination testing circuit of elevator drive system, the mouth of testing circuit and the mouth of speed sensor connect the input end of microcontroller respectively.
2, the lift appliance based on electronic safety gear according to claim 1 is characterized in that described electronic safety gear is an ISG type electronic safety gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100267505A CN101602458A (en) | 2009-04-29 | 2009-04-29 | Elevator device based on electronic safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100267505A CN101602458A (en) | 2009-04-29 | 2009-04-29 | Elevator device based on electronic safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101602458A true CN101602458A (en) | 2009-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100267505A Pending CN101602458A (en) | 2009-04-29 | 2009-04-29 | Elevator device based on electronic safety tongs |
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| Country | Link |
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| CN (1) | CN101602458A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103086226A (en) * | 2013-01-28 | 2013-05-08 | 东南电梯股份有限公司 | Lifting equipment speed measurement braking safety system |
| CN104326322A (en) * | 2014-10-16 | 2015-02-04 | 杭州沪宁电梯配件有限公司 | Weightless safety clamp |
-
2009
- 2009-04-29 CN CNA2009100267505A patent/CN101602458A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103086226A (en) * | 2013-01-28 | 2013-05-08 | 东南电梯股份有限公司 | Lifting equipment speed measurement braking safety system |
| CN103086226B (en) * | 2013-01-28 | 2015-05-27 | 东南电梯股份有限公司 | Lifting equipment speed measurement braking safety system |
| CN104326322A (en) * | 2014-10-16 | 2015-02-04 | 杭州沪宁电梯配件有限公司 | Weightless safety clamp |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091216 |