CN102514997A - Fall-protection safety device of lifter - Google Patents
Fall-protection safety device of lifter Download PDFInfo
- Publication number
- CN102514997A CN102514997A CN2011104038199A CN201110403819A CN102514997A CN 102514997 A CN102514997 A CN 102514997A CN 2011104038199 A CN2011104038199 A CN 2011104038199A CN 201110403819 A CN201110403819 A CN 201110403819A CN 102514997 A CN102514997 A CN 102514997A
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- voussoir
- safety device
- caliper
- centrifugal
- axle
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Abstract
The invention discloses a fall-protection safety device of a lifter, which comprises a speed limiter, safety tongs and a pulling and lifting device. The speed limiter comprises a support fixed on a lifting cage, a shaft is mounted at the front end of the support, a speed metering wheel is fixedly mounted at one end of the shaft, a steel wire is wound on the speed metering wheel, a centrifuge block seat is fixed mounted at the other end of the shaft, an outer casing rotationally mounted on the shaft is arranged outside the centrifuge block seat, the inner wall of the outer casing is provided with a projection, and the centrifuge block seat is connected with a centrifuge block matched with the projection through a plate spring. By the fall-protection safety device of the lifter, a protection function for overspeed running and rope breaking of the lifter is realized. Besides, the fall-protection safety device is low in manufacturing cost, high in adaptability, can be widely used in various lifters completely and can improve safety performance of the lifter.
Description
Technical field
The present invention relates to vertical transportation machinery fields such as material elevator, elevator, specifically belong to the anti-dropping safety device of elevator.
Background technology
Present material hoist adopts the anti-falling safety device that leans on the spring force action mostly; This safety can only work under the situation of wire cable rupture; If steel rope is fracture not; Even cage moves soon again when brake failure (for example), safety can not move yet, thereby causes great industrial accident.Awl drum-type safety not only involves great expense, and must have that tooth bar is supporting with it could to be used, and only is used at present on the pinion and-rack elevator, and other elevator can not use.
Summary of the invention
The anti-dropping safety device that the purpose of this invention is to provide a kind of elevator is realized hypervelocity and breaking rope protecting function that elevator moves, and cheap, and comformability is strong, can in all kinds of elevators, be used widely fully, improves the elevator safety performance.
The technical scheme that the present invention adopts is following:
The anti-dropping safety device of elevator includes velocity limiter, safety tongs, pulling apparatus, and described velocity limiter includes the support that is fixed on the cage; The front end of support is equipped with axle, and an end of axle is installed with fifth wheel, is wound with steel rope on the fifth wheel; The other end of axle is installed with centrifugal block, and centrifugal block is provided with outward to rotate and is installed on the shell on the axle, and outer casing inner wall is provided with convexity; Be connected with and protruding centrifugal of being complementary through leaf spring on the centrifugal block; Pass hook bolt in the centrifugal block, be equipped with spring between the upper end of hook bolt and the centrifugal block, the lower end of hook bolt is fixedly connected on centrifugal; Described pulling apparatus includes and is articulated in pivoted arm on the cage, is hinged with lifting rod between the front end of pivoted arm and the outer shell outer wall; Described safety tongs includes the caliper that is fixedly installed on the cage; Be provided with each other involutory decide voussoir, moving voussoir in the caliper; Decide to be equipped with roller between voussoir and the moving voussoir; Decide to be equipped with disk spring between the voussoir outside and the caliper inwall, be connected with push rod between the lower end of moving voussoir and the pivoted arm, moving voussoir lateral wall is right against the guide rail of elevator.
The described moving voussoir lateral wall, the caliper inwall that are positioned at the guide rail both sides are respectively equipped with involutory friction shoe each other.
The lower end of described caliper has the brace table that voussoir is put in holder.
Steel rope of the present invention two ends are separately fixed at the top and the bottom of cage operation passage; Keep pulling force to surpass more than the 500N, fifth wheel drives the axle rotation under the effect of steel rope friction force when cage moves up and down, and shell is contained on the axle and can freely rotates through bearing carrier ring; The one of which side is equipped with seal ring and guarantees inner sealing; Not corroded by water, wet goods, centrifugal block is fixed on axle by key and goes up with axle and rotate, and centrifugal is close on the centrifugal block through hook bolt, spring and nut; Centrifugal block left-hand revolution under the driving of axle when cage is descending; Centrifugal by spring tension rotation thereupon on centrifugal block, but under centrifugal action, a little outwards separates, and centrifugal block rotates also acceleration when descending accelerations of cage; Centrifugal suffered centnifugal force increases thereupon; Centrifugal centnifugal force overcomes spring tension when reaching setting speed, with centrifugal block separation degree be increased to shell on the interlock of one of five convexities being uniformly distributed with, the screw inlay card on this moment leaf spring makes it not separate with the shell interlock to centrifugal internal memory; Thereby drive the shell rotation; Shell itself also can be the wire rope pulley of output mechanism, and outwards output torque or lift power drives the safety tongs action through lifting rod.
When velocity limiter moves; Upwards promote moving voussoir through shift mechanism, also move right with guide rail in the time of moving voussoir upward movement and contact, the upward movement friction shoe that spurs caliper also contacts with guide rail again; Continue upward movement and promote to decide voussoir compression disk spring left; Stop when adjustable bolt contacts with caliper upwards sliding when running to, the elastic force that this moment, disk spring produced by compression acts on the both sides of guide rail respectively through two friction shoes, and consequent friction force is the braking force of cage; Moving voussoir is made the shape of band plate washer; Caliper forms enclosure space, and the protection roller is not corroded by rainwater, greasy dirt, and the combination of adjustment adjustable bolt or adjustment disk spring can obtain different braking forces to form different brake load grades.
Compared with present technology, beneficial effect of the present invention is following:
1, compact conformation, velocity limiter, shift mechanism, safety tongs all are installed on the cage;
2, with low cost, use low-speed clutch to make transmission device simple, reduce manufacturing cost;
3, Installation and Debugging are convenient, the triggering element of velocity limiter can be steel rope sheave, sprocket wheel, track friction wheel any one, be applicable to the elevator and the installing space of different structure form;
4, safe and reliable, safety tongs is equipped with dustproof baffle plate, avoids rainwater, greasy dirt erosion;
5, responsiveness and brake load can be adjusted, to adapt to the elevator of different running velocitys and rated load.
Description of drawings
Fig. 1 is an integral structure scheme drawing of the present invention.
Fig. 2 is the cutaway view of velocity limiter of the present invention.
Fig. 3 is the cross sectional view of velocity limiter of the present invention.
Fig. 4 is a safety tongs scheme drawing of the present invention.
Fig. 5 is the scheme drawing that employing chain of the present invention drives chain crop rotation velocity limiter.
The specific embodiment
Referring to accompanying drawing, the anti-dropping safety device of elevator includes velocity limiter 1, safety tongs 2, pulling apparatus 3; Velocity limiter 1 includes the support 4 that is fixed on the cage 25, and the front end of support is equipped with axle 5, and an end of axle 5 is installed with fifth wheel 6; Be wound with steel rope 7 on the fifth wheel 6; The other end of axle 5 is installed with centrifugal block 8, is provided with to rotate outside the centrifugal block 8 to be installed on the shell 9 on the axle, and shell 9 inwalls are provided with protruding 10; Be connected with and protruding centrifugal 11 of being complementary through leaf spring 26 on the centrifugal block 8; Pass hook bolt 12 in the centrifugal block 11, be equipped with spring 13 between the upper end of hook bolt 12 and the centrifugal block, the lower end of hook bolt is fixedly connected on centrifugal 11; Pulling apparatus includes and is articulated in pivoted arm 13 on the cage 25, is hinged with lifting rod 14 between the front end of pivoted arm 13 and the outer shell outer wall; Safety tongs 2 includes the caliper 15 that is fixedly installed on the cage; Be provided with each other involutory decide voussoir 16, moving voussoir 17 in the caliper 15; Decide to be equipped with roller 18 between voussoir and the moving voussoir; Decide to be equipped with disk spring 19 between the voussoir outside and the caliper inwall, be connected with push rod 20 between the lower end of moving voussoir and the pivoted arm, moving voussoir lateral wall is right against the guide rail 21 of elevator; The moving voussoir lateral wall, the caliper inwall that are positioned at guide rail 21 both sides are respectively equipped with involutory friction shoe 22,23 each other, and the lower end of caliper 15 has the brace table 24 that voussoir is put in holder.
Claims (4)
1. the anti-dropping safety device of elevator includes velocity limiter, safety tongs, pulling apparatus, and described velocity limiter includes the support that is fixed on the cage; The front end of support is equipped with axle, and an end of axle is installed with fifth wheel, is wound with steel rope on the fifth wheel; The other end of axle is installed with centrifugal block, and centrifugal block is provided with outward to rotate and is installed on the shell on the axle, and outer casing inner wall is provided with convexity; Be connected with and protruding centrifugal of being complementary through leaf spring on the centrifugal block; Pass hook bolt in the centrifugal block, be equipped with spring between the upper end of hook bolt and the centrifugal block, the lower end of hook bolt is fixedly connected on centrifugal; Described pulling apparatus includes and is articulated in pivoted arm on the cage, is hinged with lifting rod between the front end of pivoted arm and the outer shell outer wall; Described safety tongs includes the caliper that is fixedly installed on the cage; Be provided with each other involutory decide voussoir, moving voussoir in the caliper; Decide to be equipped with roller between voussoir and the moving voussoir; Decide to be equipped with disk spring between the voussoir outside and the caliper inwall, be connected with push rod between the lower end of moving voussoir and the pivoted arm, moving voussoir lateral wall is right against the guide rail of elevator.
2. the anti-dropping safety device of elevator according to claim 1 is characterized in that: the described moving voussoir lateral wall, the caliper inwall that are positioned at the guide rail both sides are respectively equipped with involutory friction shoe each other.
3. the anti-dropping safety device of elevator according to claim 1 is characterized in that: the lower end of described caliper has the brace table that voussoir is put in holder.
4. the anti-dropping safety device of elevator according to claim 1, it is characterized in that: described fifth wheel is a kind of wire rope pulley with arc groove, also can be sprocket wheel, corresponding steel rope changes chain into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104038199A CN102514997A (en) | 2011-12-08 | 2011-12-08 | Fall-protection safety device of lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104038199A CN102514997A (en) | 2011-12-08 | 2011-12-08 | Fall-protection safety device of lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102514997A true CN102514997A (en) | 2012-06-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104038199A Pending CN102514997A (en) | 2011-12-08 | 2011-12-08 | Fall-protection safety device of lifter |
Country Status (1)
| Country | Link |
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| CN (1) | CN102514997A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434909A (en) * | 2013-08-12 | 2013-12-11 | 谭锦泉 | Speed limiting trigger |
| CN104494605A (en) * | 2014-12-31 | 2015-04-08 | 中国矿业大学 | Overspeed catcher for large-dip angle aerial passenger device steel wire rope |
| CN106458508A (en) * | 2014-05-14 | 2017-02-22 | 三菱电机株式会社 | Elevator apparatus |
| CN107428502A (en) * | 2015-04-07 | 2017-12-01 | 三菱电机株式会社 | Lift appliance |
| CN107421674A (en) * | 2017-06-22 | 2017-12-01 | 赤峰市特种设备检验所 | Power and drop-down force tester are lifted on a kind of elevator governor rope |
| CN108861942A (en) * | 2018-08-17 | 2018-11-23 | 中际联合（北京）科技股份有限公司 | Speed limit component, stall brake apparatus and lifting device |
| CN109205434A (en) * | 2018-11-13 | 2019-01-15 | 苏州默顿快速电梯有限公司 | A kind of anti-overspeed lift drag device |
| CN111498638A (en) * | 2020-05-22 | 2020-08-07 | 福州快科电梯工业有限公司 | Mechanical speed limiting protection device for elevator and working method thereof |
| CN112390109A (en) * | 2020-11-17 | 2021-02-23 | 迅达（中国）电梯有限公司 | Elastic friction member for elevator and wear amount judgment method |
| CN114275680A (en) * | 2021-12-27 | 2022-04-05 | 安徽京深智能科技有限公司 | Anti-falling combined type passive retarder for suspension cage |
| CN117509349A (en) * | 2024-01-05 | 2024-02-06 | 上海市建筑科学研究院有限公司 | Overspeed protection safety device and construction elevator |
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| US4095681A (en) * | 1976-02-23 | 1978-06-20 | Pierre Marcel David | Safety braking device for a unit moving along a surface, in particular for a lift car |
| CN1397480A (en) * | 2002-08-14 | 2003-02-19 | 宁波欣达电梯配件厂 | Speed-limiting safety jaw |
| CN2685301Y (en) * | 2004-03-17 | 2005-03-16 | 上海精润金属制品有限公司 | Elevator safety tongs |
| CN201343335Y (en) * | 2009-02-16 | 2009-11-11 | 南京高立工程机械有限公司 | Progressive-type anti-fall protection device of construction elevator |
| CN201400496Y (en) * | 2009-03-24 | 2010-02-10 | 中国建筑科学研究院建筑机械化研究分院 | Low excited speed safety device |
| CN101759076A (en) * | 2008-12-25 | 2010-06-30 | 上海三菱电梯有限公司 | Elevator buffer |
| CN202369226U (en) * | 2011-12-08 | 2012-08-08 | 安徽丰海起重设备制造有限公司 | Anti-fall safety device of elevator |
-
2011
- 2011-12-08 CN CN2011104038199A patent/CN102514997A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4095681A (en) * | 1976-02-23 | 1978-06-20 | Pierre Marcel David | Safety braking device for a unit moving along a surface, in particular for a lift car |
| CN1397480A (en) * | 2002-08-14 | 2003-02-19 | 宁波欣达电梯配件厂 | Speed-limiting safety jaw |
| CN2685301Y (en) * | 2004-03-17 | 2005-03-16 | 上海精润金属制品有限公司 | Elevator safety tongs |
| CN101759076A (en) * | 2008-12-25 | 2010-06-30 | 上海三菱电梯有限公司 | Elevator buffer |
| CN201343335Y (en) * | 2009-02-16 | 2009-11-11 | 南京高立工程机械有限公司 | Progressive-type anti-fall protection device of construction elevator |
| CN201400496Y (en) * | 2009-03-24 | 2010-02-10 | 中国建筑科学研究院建筑机械化研究分院 | Low excited speed safety device |
| CN202369226U (en) * | 2011-12-08 | 2012-08-08 | 安徽丰海起重设备制造有限公司 | Anti-fall safety device of elevator |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434909A (en) * | 2013-08-12 | 2013-12-11 | 谭锦泉 | Speed limiting trigger |
| CN106458508B (en) * | 2014-05-14 | 2018-12-07 | 三菱电机株式会社 | Lift appliance |
| CN106458508A (en) * | 2014-05-14 | 2017-02-22 | 三菱电机株式会社 | Elevator apparatus |
| CN104494605A (en) * | 2014-12-31 | 2015-04-08 | 中国矿业大学 | Overspeed catcher for large-dip angle aerial passenger device steel wire rope |
| CN107428502A (en) * | 2015-04-07 | 2017-12-01 | 三菱电机株式会社 | Lift appliance |
| CN107428502B (en) * | 2015-04-07 | 2019-12-20 | 三菱电机株式会社 | Elevator device |
| CN107421674A (en) * | 2017-06-22 | 2017-12-01 | 赤峰市特种设备检验所 | Power and drop-down force tester are lifted on a kind of elevator governor rope |
| CN107421674B (en) * | 2017-06-22 | 2023-09-22 | 内蒙古自治区特种设备检验研究院赤峰分院 | Lift-up tension and pull-down tension tester for elevator speed limiter rope |
| CN108861942A (en) * | 2018-08-17 | 2018-11-23 | 中际联合（北京）科技股份有限公司 | Speed limit component, stall brake apparatus and lifting device |
| CN108861942B (en) * | 2018-08-17 | 2024-02-13 | 中际联合（北京）科技股份有限公司 | Speed limiting assembly, stall braking device and lifting equipment |
| CN109205434A (en) * | 2018-11-13 | 2019-01-15 | 苏州默顿快速电梯有限公司 | A kind of anti-overspeed lift drag device |
| CN111498638A (en) * | 2020-05-22 | 2020-08-07 | 福州快科电梯工业有限公司 | Mechanical speed limiting protection device for elevator and working method thereof |
| CN112390109A (en) * | 2020-11-17 | 2021-02-23 | 迅达（中国）电梯有限公司 | Elastic friction member for elevator and wear amount judgment method |
| CN114275680A (en) * | 2021-12-27 | 2022-04-05 | 安徽京深智能科技有限公司 | Anti-falling combined type passive retarder for suspension cage |
| CN114275680B (en) * | 2021-12-27 | 2024-05-17 | 安徽京深智能科技有限公司 | Anti-falling combined passive retarder for hanging cage |
| CN117509349A (en) * | 2024-01-05 | 2024-02-06 | 上海市建筑科学研究院有限公司 | Overspeed protection safety device and construction elevator |
| CN117509349B (en) * | 2024-01-05 | 2024-03-08 | 上海市建筑科学研究院有限公司 | Overspeed protection safety device and construction elevator |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120627 |