CN101602460A - Brake device for elevator - Google Patents
Brake device for elevator Download PDFInfo
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- CN101602460A CN101602460A CNA2009100267524A CN200910026752A CN101602460A CN 101602460 A CN101602460 A CN 101602460A CN A2009100267524 A CNA2009100267524 A CN A2009100267524A CN 200910026752 A CN200910026752 A CN 200910026752A CN 101602460 A CN101602460 A CN 101602460A
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- elevator
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Abstract
The present invention has announced a kind of brake device for elevator, comprise command reception module, pulse-detecting circuit, electronic analysis device, triple coil, vital circuit, treater and D/A converting circuit, wherein the command reception module is connected in series pulse-detecting circuit, electronic analysis device, triple coil successively, the mouth of triple coil and vital circuit connects the input end of pulse-detecting circuit respectively, and the mouth of electronic analysis device is connected in series treater and D/A converting circuit successively.The present invention brakes fast, accurately.
Description
Technical field
Invention relates to a kind of technical field of brake device for elevator.
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 brake device for elevator at the defective that prior art exists.
The present invention adopts following technical scheme for achieving the above object:
Brake device for elevator of the present invention, it is characterized in that comprising command reception module, pulse-detecting circuit, electronic analysis device, triple coil, vital circuit, treater and D/A converting circuit, wherein the command reception module is connected in series pulse-detecting circuit, electronic analysis device, triple coil successively, the mouth of triple coil and vital circuit connects the input end of pulse-detecting circuit respectively, and the mouth of electronic analysis device is connected in series treater and D/A converting circuit successively.
Brake device for elevator braking of the present invention 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, brake device for elevator, it is characterized in that comprising command reception module, pulse-detecting circuit, electronic analysis device, triple coil, vital circuit, treater and D/A converting circuit, wherein the command reception module is connected in series pulse-detecting circuit, electronic analysis device, triple coil successively, the mouth of triple coil and vital circuit connects the input end of pulse-detecting circuit respectively, and the mouth of electronic analysis device is connected in series treater and D/A converting circuit successively.
Described brake device for elevator is characterized in that described vital circuit is electromagnet or electromagnetic relay.
Claims (2)
1, a kind of brake device for elevator, it is characterized in that comprising command reception module, pulse-detecting circuit, electronic analysis device, triple coil, vital circuit, treater and D/A converting circuit, wherein the command reception module is connected in series pulse-detecting circuit, electronic analysis device, triple coil successively, the mouth of triple coil and vital circuit connects the input end of pulse-detecting circuit respectively, and the mouth of electronic analysis device is connected in series treater and D/A converting circuit successively.
2, brake device for elevator according to claim 1 is characterized in that described vital circuit is electromagnet or electromagnetic relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100267524A CN101602460A (en) | 2009-04-29 | 2009-04-29 | Brake device for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100267524A CN101602460A (en) | 2009-04-29 | 2009-04-29 | Brake device for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101602460A true CN101602460A (en) | 2009-12-16 |
Family
ID=41468380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100267524A Pending CN101602460A (en) | 2009-04-29 | 2009-04-29 | Brake device for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101602460A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996352A (en) * | 2018-01-16 | 2018-12-14 | 哈密市特种设备检验检测所 | A kind of elevator overload intelligent testing and warning system |
| CN114314216A (en) * | 2022-01-06 | 2022-04-12 | 武汉捷能自动化技术有限公司 | Control system for preventing accidental movement of lift car |
-
2009
- 2009-04-29 CN CNA2009100267524A patent/CN101602460A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996352A (en) * | 2018-01-16 | 2018-12-14 | 哈密市特种设备检验检测所 | A kind of elevator overload intelligent testing and warning system |
| CN114314216A (en) * | 2022-01-06 | 2022-04-12 | 武汉捷能自动化技术有限公司 | Control system for preventing accidental movement of lift car |
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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 |