CN102976175B - Elevator speed measuring device - Google Patents
Elevator speed measuring device Download PDFInfo
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- CN102976175B CN102976175B CN201210505973.1A CN201210505973A CN102976175B CN 102976175 B CN102976175 B CN 102976175B CN 201210505973 A CN201210505973 A CN 201210505973A CN 102976175 B CN102976175 B CN 102976175B
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Abstract
The invention discloses an elevator speed measuring device. The operating speed and the operating direction of an elevator can be reflected by the rotating speed and the rotating direction of a lift car sheave, multiple induction blocks can rotate along with the rotation of the lift car sheave while the lift car sheave rotates, pulse signals for reflecting the rotation of the induction blocks can be sensed by a first speed measuring probe and a second speed measuring probe, the pulse signals can be transmitted to an elevator main control panel, the actual operation speed and the actual operating direction of the elevator can be obtained due to the calculation of the elevator main control panel, the monitoring for the excessive speed and the reversion of the elevator and the fault of a coder can be realized, the operation safety of the elevator can be increased, and the elevator accident can be prevented from happening.
Description
Technical field
the present invention relates to a kind of elevator speed-measuring device.
Background technology
in prior art, elevator is the measurement of carrying out real-world operation speed by coder, and due to without comparison and reference, single elevator speed only obtaining by coder cannot identification precision, may cause like this safety misadventure.
Summary of the invention
the object of this invention is to provide a kind of elevator speed-measuring device, the impulse singla obtaining by the first holes probe and the second holes probe sensitive piece obtains real-world operation velocity amplitude and the service direction of elevator, realize the accurate monitoring to elevator overspeed and reverse, can also be by comparing with the observed reading of coder, whether mistake of feedback coder, increases the safety of elevator operation.
for achieving the above object, the technical solution used in the present invention is: a kind of elevator speed-measuring device, comprise car sheave, be located at the rope sheave cover of described car sheave outside, for measuring the coder of elevator speed, described elevator speed-measuring device also comprises the mounting hole being opened on described rope sheave cover, be arranged on described rope sheave cover and stretch into the first holes probe and the second holes probe in described rope sheave cover by described mounting hole, protrusion is arranged on the multiple sensor blocks on the axle hole bore edges of described car sheave, the plurality of sensor block is spaced along the circumferential direction of the axle hole of described car sheave, described the first holes probe and the second holes probe are all oppositely arranged with described sensor block, and all there is distance of reaction between described the first holes probe and the second holes probe and described sensor block, and described the first holes probe and the second holes probe can not be aimed at two described sensor blocks simultaneously, described elevator speed-measuring device also comprises with described the first holes probe and the second holes probe and is electrically connected and can responds to impulse singla that described sensor block obtains and obtain according to this first holes probe and the second holes probe the elevator main control board of elevator speed and service direction, the elevator speed value obtaining by described the first holes probe and the second holes probe at this elevator main control board exceed rated speed of lift value 15% time, this elevator main control board output overspeed signal, when the absolute value of the deviation between the elevator speed value that the elevator speed value obtaining by described the first holes probe and the second holes probe at this elevator main control board and described coder measure exceedes 10%, this elevator main control board output coder spurious signal, when service direction that the elevator service direction obtaining with the second holes probe by described the first holes probe at this elevator main control board is set from this master control board is different, this elevator main control board output reverses signal.
when concrete enforcement, on the axle hole bore edges of described car sheave, offer along its circumferential spaced multiple tapped bore, in each described tapped bore, all screw thread fit has bolt, and the head of each described bolt all protrudes outside described tapped bore, has formed described sensor block.
a kind of concrete embodiment, on the outside face of described the first holes probe and the second holes probe, be provided with outside thread, mounting hole on described rope sheave cover has two at least, the outside thread of each holes probe is all through in a described mounting hole, on the outside thread of described each holes probe, all screw thread fit has a pair of nut, and this pair of nut clamps the bore edges of corresponding described mounting hole.
described the first holes probe, described the second holes probe are all selected proximity transducer.
due to the utilization of technique scheme, the present invention compared with prior art has following advantages: in this elevator speed-measuring device, the rotative speed of car sheave and direction can reflect running velocity and the service direction of elevator, car sheave when rotated, multiple sensor blocks also rotatablely move thereupon, the first holes probe, the second holes probe can sense the impulse singla of reflection sensor block rotation, this impulse singla is sent in elevator main control board, master control board calculates real-world operation speed and the service direction that just can obtain elevator, realize the monitoring to elevator overspeed and reverse and encoder fault, increase the safety of elevator operation, avoid occurring elevator accident.
Detailed description of the invention
further set forth structure of the present invention below in conjunction with accompanying drawing.
shown in Fig. 1-3, a kind of elevator speed-measuring device, comprise car sheave 1, be located at the rope sheave cover 5 of car sheave 1 outside, for measuring the coder (not shown) of elevator speed, be opened in the mounting hole on rope sheave cover 5, be arranged on rope sheave cover 5 and stretch into the first holes probe 4 and the second holes probe 4 in rope sheave cover 5 by mounting hole, protrusion is arranged on the multiple sensor blocks 3 on the bore edges 11 of car sheave 1 axle hole 12, the elevator main control board being electrically connected with the first holes probe 4 and the second holes probe 4, the first holes probe 4, the second holes probe 4 can be selected proximity transducer.In Fig. 2, multiple sensor blocks 3 are spaced along the circumferential direction of the axle hole 12 of car sheave 1, the first holes probe 4 and the second holes probe 4 are all oppositely arranged with sensor block 3, and all there is distance of reaction between the first holes probe 4 and the second holes probe 4 and sensor block 3, ensure that holes probe 4 can detect effectively, and the first holes probe 4 and the second holes probe 4 can not be aimed at two sensor blocks 3 simultaneously.Elevator is in the time moving by traction steel-cable, car sheave 1 is done as corresponding rotation by traction steel-cable, the rotative speed of car sheave 1 can reflect the running velocity of elevator, car sheave 1 when rotated, multiple sensor blocks 3 also rotatablely move thereupon, the first holes probe 4, the second holes probe 4 can sense the impulse singla that reflects sensor block 3 and rotate, and (holes probe is often by the sensor block in a distance range of induction, just produce an impulse singla), this impulse singla is sent in elevator main control board, master control board calculates real-world operation speed and the service direction that just can obtain elevator, here the real-world operation direction of elevator is reflected by the phase sequence of impulse singla, in Fig. 2, suppose that car sheave is made clickwise reflection car up, in master control board, also set car up, if actual car is really up, the phase sequence of the impulse singla of the first holes probe 4 can be ahead of the phase sequence of the impulse singla of the second holes probe 4 below, if the first holes probe 4 obtaining by master control board, the phase sequence of the impulse singla of the second holes probe 4 is just in time contrary, reflect that car sheave is reversing, car is descending, elevator main control board can be exported reverse signal.Adopt two holes probes 4 to test the speed to elevator, except can detecting and whether reversing, can also increase the accuracy that elevator speed detects.The elevator speed value obtaining by the first holes probe 4 and the second holes probe 4 at elevator main control board exceed rated speed of lift value 15% time, this elevator main control board output overspeed signal; When the absolute value of the deviation between the elevator speed value that the elevator speed value obtaining by the first holes probe 4 and the second holes probe 4 at elevator main control board and coder measure exceedes 10%, this elevator main control board output coder spurious signal.This elevator speed-measuring device, be used in conjunction with by the sensor block arranging on the first holes probe, the second holes probe and car sheave, realize the real-world operation velocity amplitude and the service direction that obtain elevator, thereby elevator overspeed and reverse are accurately monitored, the elevator real-world operation velocity amplitude obtaining by the first holes probe, the second holes probe can also compare with the observed reading of coder, whether mistake of feedback coder, increases the safety of elevator operation.
in Fig. 2, sensor block 3 is to be served as by the head of bolt.In Fig. 1, on axle hole 12 bore edges 11 of car sheave 1, offer along its circumferential spaced multiple tapped bore 2, in each tapped bore 2, all screw thread fit has bolt, and the head of each bolt all protrudes outside tapped bore, has formed sensor block 3.
in the present embodiment, as shown in Figure 3, car sheave 1 is corresponding to the position 6 at the bottom of sedan-chair, be located on the rope sheave cover 5 of car sheave 1 outside and have two mounting holes at least, on the outside face of the first holes probe 4 and the second holes probe 4, be provided with outside thread, the outside thread of each holes probe 4 is all through in a mounting hole, on the outside thread of each holes probe 4, all screw thread fit has a pair of nut, this a pair of nut clamps the bore edges of corresponding mounting hole, has realized the first holes probe 4 and the second installation of holes probe 4 on rope sheave cover 5 fixed.Save like this probe bracket, also taken full advantage of rope sheave cover 5.
to sum up, this elevator speed-measuring device, simple in structure, cost is low, obtain the impulse singla of reflection elevator speed and service direction by the multiple sensor blocks on the first holes probe, the second holes probe induction car sheave, realize the monitoring to elevator overspeed and reverse and encoder fault, increase the safety of elevator operation, avoid occurring elevator accident.
Brief description of the drawings
accompanying drawing 1 is the schematic diagram of car sheave in the present invention, the not shown bolt head as sensor block;
accompanying drawing 2 is the position view of the first holes probe, the second holes probe and sensor block in the present invention;
accompanying drawing 3 is covered with the schematic diagram of rope sheave cover outward for car sheave in the present invention, wherein the position of car sheave at the bottom of corresponding to sedan-chair.
Claims (4)
1. an elevator speed-measuring device, comprise car sheave, be located at the rope sheave cover of described car sheave outside, for measuring the coder of elevator speed, it is characterized in that: described elevator speed-measuring device also comprises the mounting hole being opened on described rope sheave cover, be arranged on described rope sheave cover and stretch into the first holes probe and the second holes probe in described rope sheave cover by described mounting hole, protrusion is arranged on the multiple sensor blocks on the axle hole bore edges of described car sheave, the plurality of sensor block is spaced along the circumferential direction of the axle hole of described car sheave, described the first holes probe and the second holes probe are all oppositely arranged with described sensor block, and all there is distance of reaction between described the first holes probe and the second holes probe and described sensor block, and described the first holes probe and the second holes probe can not be aimed at two described sensor blocks simultaneously, described elevator speed-measuring device also comprises with described the first holes probe and the second holes probe and is electrically connected and can responds to impulse singla that described sensor block obtains and obtain according to this first holes probe and the second holes probe the elevator main control board of elevator speed and service direction, the elevator speed value obtaining by described the first holes probe and the second holes probe at this elevator main control board exceed rated speed of lift value 15% time, this elevator main control board output overspeed signal, when the absolute value of the deviation between the elevator speed value that the elevator speed value obtaining by described the first holes probe and the second holes probe at this elevator main control board and described coder measure exceedes 10%, this elevator main control board output coder spurious signal, when service direction that the elevator service direction obtaining with the second holes probe by described the first holes probe at this elevator main control board is set from this master control board is different, this elevator main control board output reverses signal.
2. a kind of elevator speed-measuring device according to claim 1, it is characterized in that: on the axle hole bore edges of described car sheave, offer along its circumferential spaced multiple tapped bore, in each described tapped bore, all screw thread fit has bolt, the head of each described bolt all protrudes outside described tapped bore, has formed described sensor block.
3. a kind of elevator speed-measuring device according to claim 1, it is characterized in that: on the outside face of described the first holes probe and the second holes probe, be provided with outside thread, mounting hole on described rope sheave cover has two at least, the outside thread of each holes probe is all through in a described mounting hole, on the outside thread of described each holes probe, all screw thread fit has a pair of nut, and this pair of nut clamps the bore edges of corresponding described mounting hole.
4. a kind of elevator speed-measuring device according to claim 1, is characterized in that: described the first holes probe, described the second holes probe are all selected proximity transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210505973.1A CN102976175B (en) | 2012-11-30 | 2012-11-30 | Elevator speed measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210505973.1A CN102976175B (en) | 2012-11-30 | 2012-11-30 | Elevator speed measuring device |
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| Publication Number | Publication Date |
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| CN102976175A CN102976175A (en) | 2013-03-20 |
| CN102976175B true CN102976175B (en) | 2014-12-10 |
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| CN201210505973.1A Active CN102976175B (en) | 2012-11-30 | 2012-11-30 | Elevator speed measuring device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103723592B (en) * | 2013-12-03 | 2015-11-04 | 山东金阳矿业集团有限公司 | A kind of anti-kickback device of overhead manned equipment |
| CN104697784A (en) * | 2013-12-06 | 2015-06-10 | 大连隆星新材料有限公司 | Stress monitoring system for transmission mechanism of paraffin shaping machine |
| CN109592530A (en) * | 2017-09-30 | 2019-04-09 | 上海龙钰电梯配件有限公司 | A kind of elevator governor |
| CN114955778A (en) * | 2022-07-04 | 2022-08-30 | 浙江速捷电梯有限公司 | Emergency braking device for elevator safety |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2161291C (en) * | 1994-11-18 | 2006-01-10 | Christian Arpagaus | Excess speed detector with multiple light barrier |
| DE102006011093A1 (en) * | 2006-03-08 | 2007-09-13 | TÜV Rheinland Industrie Service GmbH | Lift`s track rope slip-detector for determining dynamic state variable e.g. speed, has sensor for detecting dynamic state variable of track rope of lift, where detector is arranged in direct proximity to track rope |
| JP4844410B2 (en) * | 2007-01-29 | 2011-12-28 | 三菱電機株式会社 | Hook detection device for elevator ropes |
| JP2009084009A (en) * | 2007-10-01 | 2009-04-23 | Hitachi Ltd | Moving body speed detection device |
| JP5297762B2 (en) * | 2008-10-28 | 2013-09-25 | 株式会社日立製作所 | Elevator safety equipment |
| CN102556793A (en) * | 2010-12-30 | 2012-07-11 | 上海迈辉信息技术有限公司 | Detecting device for state of elevator and implementation method thereof |
| CN102480268A (en) * | 2011-09-22 | 2012-05-30 | 上海微频莱机电科技有限公司 | Speed detection device and special elevator for fan tower |
| CN202936049U (en) * | 2012-11-30 | 2013-05-15 | 江南嘉捷电梯股份有限公司 | Lift speed measuring device |
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Effective date of registration: 20180426 Address after: 215122 28 Weixin Road, Suzhou Industrial Park, Suzhou, Jiangsu Patentee after: Jiangnan Jiajie Lift Co., Ltd., Jiangsu Address before: 215122 No. 718 Ting Ting Road, Suzhou Industrial Park, Jiangsu Patentee before: SJEC Corporation |
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