CN102275793B - Elevator protective device - Google Patents
Elevator protective device Download PDFInfo
- Publication number
- CN102275793B CN102275793B CN 201110233741 CN201110233741A CN102275793B CN 102275793 B CN102275793 B CN 102275793B CN 201110233741 CN201110233741 CN 201110233741 CN 201110233741 A CN201110233741 A CN 201110233741A CN 102275793 B CN102275793 B CN 102275793B
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- main shaft
- fixed
- safety tongs
- sprocket wheel
- wheel
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Abstract
The invention discloses an elevator protective device, which comprises a cage, a cage top main beam frame, a support plate, a speed limiter, safety tongs I, safety tongs II, an elastic tension device and a chainwheel mechanism. Because the safety tongs I, the safety tongs II and the speed limiter are associated together through the chainwheel mechanism, the descending overspeed of the cage can be limited without a limiter steel wire rope. By the structure, the safety tongs I, the safety tongs II, the limiter and the chainwheel mechanism are arranged on the top of the cage, so special pit and machine room are not required, an installation space is greatly saved, and the limiter and the safety tongs are convenient to mount, debug and maintain.
Description
Technical field
The present invention relates to a kind of elevator, relate in particular to a kind of elevator protection device.
Background technology
Velocity limiter, the safety tongs linkage of at present vertical lift employing are made of velocity limiter, speed limiter wire rope, safety tongs, tightening device four parts, and velocity limiter is installed in elevator hoistways top layer or the machine room; Safety tongs is installed on the car; Tightening device is installed in the well pit.
Car drives the rope sheave reciprocating operation of velocity limiter by speed limiter wire rope when car moves up and down.When the running velocity of car surpasses load rated safety speed when hanging the steel rope fracture of car (or), the very fast transmission device by velocity limiter of operating speed limiter wire rope blocks, because car still moves down, be equivalent to speed limiter wire rope the gangbar pull-up of the voussoir on the safety tongs, because the voussoir of voussoir pull bar and safety tongs is integrally togather, so the voussoir of safety tongs is brought up, the voussoir of safety tongs firmly is stuck on the car guide rail, guarantee that car does not rush the end or degeneration.
Because velocity limiter, speed limiter wire rope, safety tongs, tightening device four parts independently disperse to be installed in machine room (or hoistway top layer), car and the well pit, complex structure, install, debugging, safeguard very inconvenient, and take a large amount of hoistway space, cost is high.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, floor area is little, does not need a kind of elevator protection device of special melt pit and machine room.
Technical scheme of the present invention is: it comprises car, car roof main beam frame, support plate, velocity limiter, safety tongs I, safety tongs II, elastic stretching device and chain-wheel mechanism, car roof main beam frame is fixed on the car, symmetry is fixedly connected with safety tongs I and safety tongs II at the two ends, the left and right sides of car roof main beam frame, and the gangbar fixed support is fixed on the car roof main beam frame; The lower end of the gangbar left and right sides cooperates with scotch block gap on safety tongs I, the safety tongs II respectively; Chain-wheel mechanism comprises sprocket wheel II, sprocket wheel I, chain and tensioner sprocket wheel, and the main shaft on sprocket wheel II and the velocity limiter connects firmly and connects, and the sprocket wheel II also forms chain-wheel mechanism by chain and tensioner sprocket wheel, sprocket wheel I; Right-hand member at car roof main beam frame is fixed with support plate, middle right part at support plate is provided with bearing pin, the middle part of sprocket wheel tensioner support is actively set on the bearing pin, sprocket wheel tensioner support upper end and tensioner sprocket wheel free-running fit, and the lower end is by set screw II and car roof main beam frame Elastic Contact; Elastic stretching device is fixed on the upper right end of support plate, is fixed with type leading wheel framework at the top of support plate; Described velocity limiter comprises the velocity limiter support, drive wheel, main shaft, the power-transfer clutch I, the power-transfer clutch II, the sprocket wheel II, described main shaft comprises main shaft I and main shaft II, the velocity limiter support is fixed on the bottom of elastic stretching device and forms an integral body with elastic stretching device, elastic stretching device guarantees that drive wheel is pressed on the cage guide driving surface all the time, the main shaft I is fixed on the left end of velocity limiter support by bearing, the main shaft II is fixed on the right-hand member of velocity limiter support by bearing, main shaft I and main shaft II are coaxial, left end in the main shaft I is fixed with the sprocket wheel II, right-hand member in the main shaft I is fixed with the power-transfer clutch I, left end in the main shaft II is fixed with the power-transfer clutch II, is fixed with drive wheel at the right-hand member in the main shaft II.
Described drive wheel is the polyurethane drive wheel;
Described power-transfer clutch I is the pawl clutch I, and the power-transfer clutch II is the ratchet clutch II;
Described safety tongs I and safety tongs II are wedge type safety gear;
Described elastic stretching device comprises connecting panel, two or more belleville spring and the adjusting bolt that matches with belleville spring, connecting panel is installed in elevator car top main beam top by adjusting bolt, is provided with associated belleville spring in the outside of adjusting bolt.
Effect of the present invention is: because safety tongs I, safety tongs II and velocity limiter are associated together by chain-wheel mechanism, thereby do not need speed limiter wire rope can reach restriction car overspeed descending, adopt this kind structure, safety tongs I, safety tongs II, velocity limiter and chain-wheel mechanism are installed in the top of car, thereby do not need to arrange special-purpose melt pit and machine room, greatly saved installing space, also the installation of very convenient velocity limiter, safety tongs, debugging and maintenance.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is that the B of Fig. 1 is to view.
The specific embodiment
It comprises car 23, car roof main beam frame 18, support plate 27, velocity limiter 7, safety tongs I 2, safety tongs II 4, elastic stretching device 10 and chain-wheel mechanism the present invention, car roof main beam frame 18 is fixed on the car 23, symmetry is fixedly connected with safety tongs I 2 and safety tongs II 4 at the two ends, the left and right sides of car roof main beam frame 18, be fixed with type leading wheel framework 1 above safety tongs I 2, gangbar fixed support 5 is bolted on the position of keeping right of car roof main beam frame 18; The lower end of gangbar 3 left and right sides respectively with safety tongs I 2, safety tongs II 4 on the braking voussoir cooperate with pin-hole clearance; Chain-wheel mechanism comprises sprocket wheel II 17, sprocket wheel I 16, chain 11 and tensioner sprocket wheel 12, and the main shaft 21 flat key tight joint on sprocket wheel II 17 and the velocity limiter 7 also forms chain-wheel mechanisms by chain 11 and tensioner sprocket wheel 12, sprocket wheel I 16; Referring to accompanying drawing 2, right-hand member at car roof main beam frame 18 is fixed with support plate 27, middle right part at support plate 27 is provided with bearing pin 26, the middle part of sprocket wheel tensioner support 13 is actively set on the bearing pin 26, sprocket wheel tensioner support 13 upper ends are by bearing and circlip and tensioner sprocket wheel 12 free-running fits, and the lower end is by angle steel 15 Elastic Contact on set screw II 19 and the car roof main beam frame 18; Elastic stretching device 10 is fixed on the upper right end of support plate 27, is fixed with type leading wheel framework 1 at the top of support plate 27; Referring to accompanying drawing 1 and accompanying drawing 3, velocity limiter 7 comprises velocity limiter support 14, drive wheel 20, main shaft 21, pawl clutch I 22-1, ratchet clutch II 22-2, sprocket wheel II 17, main shaft 21 comprises main shaft I 21-1 and main shaft II 21-2, velocity limiter support 14 is fixed on the bottom of elastic stretching device 10 and forms an integral body with elastic stretching device 10 by one group of bolt 25, guarantee that by the belleville spring 8 that adjusting bolt I 9 and adjusting bolt I 9 outsides are provided with drive wheel 20 is pressed on cage guide 24 driving surfaces all the time, main shaft I 21-1 is fixed on the left end of velocity limiter support 14 by bearing, main shaft II 21-2 is fixed on the right-hand member of velocity limiter support 14 by bearing, main shaft I 21-1 and main shaft II 21-2 are coaxial, left end at main shaft I 21-1 is fixed with sprocket wheel II 17, right-hand member at main shaft I 21-1 is fixed with pawl clutch I 22-1, left end at main shaft II 21-2 is fixed with ratchet clutch II 22-2, is fixed with drive wheel 20 at the right-hand member at main shaft II 21-2.
During work, when lift car 23 normally moves up and down, the pawl clutch I 22-1 of the main shaft I 21-1 of velocity limiter 7 and the ratchet clutch II 22-2 of main shaft II 21-2 are in disengaged position, and the drive wheel 20 of velocity limiter 7 is along the driving surface of car guide rail 24 normal operation up and down reciprocatingly.When the running velocity of car 23 surpasses load rated safety speed when hanging steel rope 6 fracture of car 23 (or), the ratchet of ratchet clutch II 22-2 very fast ratchet with pawl clutch I 22-1 under the effect of centnifugal force catches on, this moment, the main shaft I 21-1 of velocity limiter 7 became as a whole together rotation with main shaft II 21-2, drive wheel 20 band movable sprocket II 17 are rotated together, sprocket wheel II 17 is rotated by chain 11 band movable sprocket I 16, because sprocket wheel I 16 is fixed on the gangbar 3, thereby gangbar 3 is also rotated together, the gangbar 3 rapid voussoir pull-ups with safety tongs I 2 and safety tongs II 4 of rotating, safety tongs I 2 and safety tongs II tightly are locked in above the driving surface of car guide rail 24, and car 23 stops downward operation immediately.
Because safety tongs I 2, safety tongs II 4 and velocity limiter 7 are associated together by chain-wheel mechanism, thereby do not need speed limiter wire rope can reach restriction car 23 overspeed descendings, adopt this kind structure, safety tongs I 2, safety tongs II 4, velocity limiter 7 and chain-wheel mechanism are installed in the top of car 23, thereby do not need to arrange special-purpose melt pit and machine room, greatly saved installing space.
Claims (5)
1. elevator protection device, it comprises car, car roof main beam frame, support plate, velocity limiter, the safety tongs I, the safety tongs II, elastic stretching device and chain-wheel mechanism, car roof main beam frame is fixed on the car, symmetry is fixedly connected with safety tongs I and safety tongs II at the two ends, the left and right sides of car roof main beam frame, the gangbar fixed support is fixed on the car roof main beam frame, the lower end of the gangbar left and right sides respectively with the safety tongs I, scotch block gap on the safety tongs II cooperates, it is characterized in that, described chain-wheel mechanism comprises the sprocket wheel II, the sprocket wheel I, chain and tensioner sprocket wheel, main shaft on sprocket wheel II and the velocity limiter connects firmly and connects, and the sprocket wheel II is also by chain and tensioner sprocket wheel, the sprocket wheel I forms chain-wheel mechanism; Right-hand member at car roof main beam frame is fixed with support plate, middle right part at support plate is provided with bearing pin, the middle part of sprocket wheel tensioner support is actively set on the bearing pin, sprocket wheel tensioner support upper end and tensioner sprocket wheel free-running fit, and the lower end is by set screw II and car roof main beam frame Elastic Contact; Elastic stretching device is fixed on the upper right end of support plate, is fixed with type leading wheel framework at the top of support plate; Described velocity limiter comprises the velocity limiter support, drive wheel, main shaft, the power-transfer clutch I, the power-transfer clutch II, the sprocket wheel II, described main shaft comprises main shaft I and main shaft II, the velocity limiter support is fixed on the bottom of elastic stretching device and forms an integral body with elastic stretching device, elastic stretching device guarantees that drive wheel is pressed on the cage guide driving surface all the time, the main shaft I is fixed on the left end of velocity limiter support by bearing, the main shaft II is fixed on the right-hand member of velocity limiter support by bearing, main shaft I and main shaft II are coaxial, left end in the main shaft I is fixed with the sprocket wheel II, right-hand member in the main shaft I is fixed with the power-transfer clutch I, left end in the main shaft II is fixed with the power-transfer clutch II, is fixed with drive wheel at the right-hand member in the main shaft II.
2. a kind of elevator protection device according to claim 1 is characterized in that, described drive wheel is the polyurethane drive wheel.
3. elevator protection device according to claim 1 is characterized in that, described power-transfer clutch I is the pawl clutch I, and the power-transfer clutch II is the ratchet clutch II.
4. elevator protection device according to claim 1 is characterized in that, described safety tongs I and safety tongs II are wedge type safety gear.
5. elevator protection device according to claim 1; it is characterized in that; described elastic stretching device comprises connecting panel, two or more belleville spring and the adjusting bolt that matches with belleville spring; connecting panel is installed in elevator car top main beam top by adjusting bolt, is provided with associated belleville spring in the outside of adjusting bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110233741 CN102275793B (en) | 2011-08-16 | 2011-08-16 | Elevator protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110233741 CN102275793B (en) | 2011-08-16 | 2011-08-16 | Elevator protective device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102275793A CN102275793A (en) | 2011-12-14 |
| CN102275793B true CN102275793B (en) | 2013-04-24 |
Family
ID=45101601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110233741 Expired - Fee Related CN102275793B (en) | 2011-08-16 | 2011-08-16 | Elevator protective device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102275793B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5755580B2 (en) * | 2012-02-08 | 2015-07-29 | 株式会社日立製作所 | Speed detection apparatus, elevator apparatus equipped with the speed detection apparatus, and elevator apparatus inspection method |
| CN103818797B (en) * | 2014-03-24 | 2016-01-20 | 袁昭成 | Based on velocity limiter and the safety tongs linked system of elevator |
| CN108821064B (en) * | 2018-08-10 | 2024-04-19 | 通力电梯有限公司 | Elevator and manufacturing method thereof |
| CN112591573A (en) * | 2020-12-16 | 2021-04-02 | 上海三菱电梯有限公司 | Synchronous adjusting device and method for safety tongs |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH048151A (en) * | 1990-04-24 | 1992-01-13 | Nippon Densan Corp | Method of machining spindle motor |
| JPH07125946A (en) * | 1993-11-08 | 1995-05-16 | Mitsubishi Denki Bill Techno Service Kk | Elevator speed governor |
| EP0787676A1 (en) * | 1996-01-31 | 1997-08-06 | Inventio Ag | Safety device |
| CN1327941A (en) * | 2000-05-16 | 2001-12-26 | 余忠 | Elevator able to prevent falling down and collision, being blocked and regulating speed and having digital display |
| CN1182017C (en) * | 2002-08-14 | 2004-12-29 | 宁波欣达电梯配件厂 | Speed-limiting safety jaw |
| WO2006035264A1 (en) * | 2004-09-29 | 2006-04-06 | Otis Elevator Company | Device for the safety stop of an elevator car |
| CN100575234C (en) * | 2008-04-08 | 2009-12-30 | 宁波申菱电梯配件有限公司 | Elevator governor |
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2011
- 2011-08-16 CN CN 201110233741 patent/CN102275793B/en not_active Expired - Fee Related
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| CN102275793A (en) | 2011-12-14 |
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