CN203740794U - Automatic reset anti-falling safety device for construction lift - Google Patents
Automatic reset anti-falling safety device for construction lift Download PDFInfo
- Publication number
- CN203740794U CN203740794U CN201420083258.8U CN201420083258U CN203740794U CN 203740794 U CN203740794 U CN 203740794U CN 201420083258 U CN201420083258 U CN 201420083258U CN 203740794 U CN203740794 U CN 203740794U
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- ball
- screw
- safety device
- falling safety
- centrifugal mechanism
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 230000003068 static effect Effects 0.000 claims abstract description 9
- 230000002401 inhibitory effect Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The utility model discloses an automatic reset anti-falling safety device for a construction lift. The automatic reset anti-falling safety device comprises a casing, a gear, a centrifugal mechanism, a brake drum, a ball screw pair, a pressurizing support and a disc brake friction pair, wherein one end of a ball screw is connected with a supporting seat of a tail end cover shaft and positioned axially by a ball screw positioning sleeve, the other end of the ball screw penetrates through the brake drum to be in threaded connection with a positioning block piece of the centrifugal mechanism, and the positioning block piece of the centrifugal mechanism is connected with a hinge pin of the brake drum. The disc brake friction pair is formed by a static friction piece group fixed with the casing and a dynamic friction piece group fixed with a columnar protruding frame arranged on the brake drum. The pressurizing support is sleeved with the ball screw and respectively connected with the lateral surface of the disc brake friction pair and the inner lateral surface of the columnar protruding frame of the brake drum, a disc spring is arranged between the pressurizing support and a nut of the ball screw, and the nut of the ball screw is connected with an end cover at the tail of the casing through a rotation blocking positioning rod. When braking, the automatic reset anti-falling safety device can automatically reset without manual interference and special reset tools.
Description
Technical field
The utility model relates to a kind of construction hoist falling-proof safety device.This device is in the time of building hoist generation falling from high altitude, not only can play the function of effective stop construction elevator cage, and upwards move after a segment distance at building hoist trouble-shooting, this device can operate without manual reset, realizes the initial adjustment state that automatically resets to.
Background technology
At present, known Anti-falling safety device for construction lift is to be made up of gear wheel shaft, the centrifugal mechanism, stop mechanism and the manual reset parts that are arranged on gear wheel shaft.When work, drive centrifugal mechanism rotate and trigger stop mechanism by the gear wheel shaft of running, rely on the friction force consumption falling from high altitude energy increasing gradually between cone drum and housing to realize the function of gradual stop.
But the building hoist that carries above-mentioned anti-falling safety device falls after stop at cage, need manually by special tool, anti-falling safety device to be carried out to reset operation, in operating process, also need requirement to specifications to carry out successively.If while occurring to reset inaccurate situation in manual reset process, the stopping distance that will cause construction elevator cage to fall is too short or long next time, this all can affect safe operation and the service life of building hoist.Owing to needing the anti-falling safety device of manual reset to be arranged on to approach the position at cage top, brought much operations inconvenience to the reset work after anti-falling safety device braking, the work efficiency that greatly reduces equipment repair and maintenance personnel with increased overwork amount.If repeatedly take the way of short circuit control loop in manual reset process, only upwards move by cage the centrifugal mechanism that resets, and do not carry out this anti-falling safety device of manual reset, although building hoist still can move up and down, but this by with huge potential safety hazard as rupture of case, broken teeth etc., and may lose the critical function of the construction elevator cage that stop falls, bring huge loss to people's life and property safety.
Summary of the invention
Realizing after the function of construction elevator cage falling guard in order to overcome existing Anti-falling safety device for construction lift, need the present situation of manpower intervention reset operation, the purpose of this utility model be just to provide a kind of novel can automatically reset anti-falling safety device, gradual stop function when this anti-falling safety device can not only be realized construction elevator cage and falls, and after construction elevator cage stop, only make cage take the measure upwards moving, just can make the centrifugal mechanism of anti-falling safety device be returned to initial off working state releasing brake mechanism automatically simultaneously, make anti-falling safety device automatically revert to initial adjustment state.Thereby the various drawbacks that need manual reset to bring are overcome after existing Anti-falling safety device for construction lift work.
This case solves the problems of the technologies described above taked technical scheme: the one Anti-falling safety device for construction lift that automatically resets, comprise housing, and be arranged on the gear of the large end cap of housing outside, be arranged on centrifugal mechanism and brake wheel in housing; It is characterized in that: also comprise the ball screw assembly,, pressurizing frame and the disc type brake friction pair that are positioned at housing, housing afterbody end cap is provided with afterbody end-cover axle supporting seat; One end of described its ball-screw of ball screw assembly, is connected with afterbody end-cover axle supporting seat, carries out axial location by the ball-screw locating bush being fixed on afterbody end-cover axle supporting seat;
The other end is threaded with centrifugal mechanism location washer through brake wheel; Described centrifugal mechanism location washer is connected with brake wheel by connecting pin; The drum surface central authorities of described brake wheel are provided with a column-shaped projection frame; Described disc type brake friction pair is by the static friction sheet group of fixing with housing with by forming with the fixing movable friction plate group of brake wheel column-shaped projection frame; Described pressurizing frame is enclosed within on ball-screw and joins with disc type brake friction pair side and brake wheel column-shaped projection frame medial surface respectively; Between pressurizing frame and ball-screw nut, be provided with dish spring, ball-screw nut turns radius stay by resistance and is connected with housing afterbody end cap.
Between described afterbody end-cover axle supporting seat and ball-screw nut, be provided with predetermincd tension adjusting sleeve, predetermincd tension adjusting sleeve is threaded with ball-screw and joins by back-up ring and ball-screw nut.
Described ball-screw locating bush is fixed in afterbody end-cover axle supporting seat hole by screw thread, and is connected by retainer spring part between ball-screw.
Between described pressurizing frame and disc type brake friction pair, be provided with gap adjustment circle.
The utility model adopt can complete axial motion and rotatablely move can reciprocal conversion ball screw assembly, and disc brake apparatus realize the gradual braking of anti-falling safety device and auto-reset function.When the braking of the utility model anti-falling safety device, the centrifugal-block of centrifugal mechanism is embedded in the draw-in groove of brake wheel, drive brake wheel, static friction sheet group, centrifugal mechanism location washer and ball-screw to rotate, ball screw assembly, compact disc spring the longitudinal travel producing by pressure with because of pressure pass to disc type brake friction pair by pressurizing frame, between dynamic and static friction lining group, produce the friction force that continues increase, make cage out of service.
After the braking of the utility model anti-falling safety device, in the time that construction elevator cage upwards moves, because of centrifugal mechanism unloading, ball screw assembly, just can complete the action that discharges pressurized dish spring automatically, make disc type brake friction pair complete unloading, be all returned to initial light condition realization without artificial and the each parts of Special reset instrument and automatically reset.
Brief description of the drawings
Below in conjunction with drawings and embodiments, the utility model is described in further detail:
Fig. 1 is the utility model structural representation;
Description of reference numerals: 1. gear; 2. castellated shaft; 3. centrifugal mechanism; 4. brake wheel; 5. housing; 6. disc type brake friction pair; 7. pressurizing frame; 8. limit switch; 9. resistance turns radius stay; 10 ball-screw locating bushs; 11. retainer spring parts; 12. afterbody end-cover axle supporting seats; 13. predetermincd tension adjusting sleeves; 14. ball-screw nuts; 15. dish springs; 16. ball-screws; 17. gap adjustment circles; 18. centrifugal mechanism location washers.
Detailed description of the invention
As shown in Figure 1, the one Anti-falling safety device for construction lift that automatically resets, comprises housing 5, is arranged on the gear 1 of housing 5 large end cap outsides, is arranged on centrifugal mechanism 3 and brake wheel 4 in housing, and gear 1 is connected with centrifugal mechanism 3 by castellated shaft 2; Also comprise ball screw assembly,, pressurizing frame 7 and disc type brake friction pair 6, housing afterbody end cap is provided with afterbody end-cover axle supporting seat 12; Ball screw assembly, is made up of ball-screw 16 and ball-screw nut 14;
One end of ball-screw 16 is connected with afterbody end-cover axle supporting seat 12, carries out axial location by the ball-screw locating bush 10 being fixed on housing afterbody end-cover axle supporting seat; Ball-screw locating bush 10 is fixed in afterbody end-cover axle supporting seat 12 holes by screw thread, and is connected by retainer spring part 11 between ball-screw 16, plays the adjustment function of the end float misalignment of ball-screw 16 and centrifugal mechanism locating stop piece 18;
Ball-screw 16 other ends are threaded with centrifugal mechanism location washer 18 through brake wheel 4, and centrifugal mechanism location washer 18 is connected with brake wheel 4 by connecting pin; The drum surface central authorities of brake wheel 4 are provided with a column-shaped projection frame; Disc type brake friction pair is by with the fixing static friction sheet group of housing 5 with by forming with the fixing movable friction plate group of brake wheel 4 column-shaped projection framves; Pressurizing frame 7 is enclosed within on ball-screw 16 and joins with disc type brake friction pair 6 sides and brake wheel 4 column-shaped projection frame medial surfaces respectively, is provided with gap adjustment circle 17 between pressurizing frame 7 and disc type brake friction pair 6; Between pressurizing frame 7 and ball-screw nut 14, be provided with dish spring 15; Ball-screw nut 14 turns radius stay 9 by resistance and is connected with housing afterbody end cap; Housing 5 is provided with and turns the corresponding limit switch of radius stay 98 with hindering, in the time that ball-screw nut 14 produces displacement, ball-screw nut becomes normally open by radius stay by normally closed limit switch 8, reaches rapid cut-out main control loop, and then cuts off the effect of the descending control loop of motor.
In the time that construction elevator cage falls, the utility model anti-falling safety device plays brake action: when the centrifugal mechanism 3 that gear 1 drives reaches opening speed, centrifugal-block in centrifugal mechanism 3 is embedded in the draw-in groove of brake wheel 4, now with the centrifugal mechanism 3 of kinetic energy energy, the movable friction plate group that drives brake wheel 4 and disc type brake friction pair 6 is rotated, brake wheel 4 is in the process of rotating, drive centrifugal mechanism location washer 18 to rotate by connecting pin, because centrifugal mechanism location washer 18 is threaded connection with ball-screw 16, to rotatablely move and pass to ball-screw, ball-screw will rotatablely move and pass to ball-screw nut 14 by ball, because the ball-screw nut resistance that turns radius stay 9 of being obstructed turns restriction, the dish-shaped spring assembly 15 of compression axially moves, the displacement that belleville spring produces pressure in the process of compression passes to the static friction sheet group of disc type brake friction pair 6 by pressurizing frame 7 and gap adjustment circle 17, when movable friction plate group produces relative rotation with respect to static friction sheet group, static friction sheet group produces with movable friction plate group the friction force continuing to increase under dish spring pressure simultaneously, thereby make cage out of service.In the time that ball-screw nut 14 produces displacement, ball-screw nut becomes normally open by radius stay by normally closed limit switch 8, reaches rapid cut-out main control loop, and then cuts off the effect of the descending control loop of motor.
After the braking of the utility model anti-falling safety device, only make cage take the measure upwards moving, just can make the centrifugal mechanism of anti-falling safety device be returned to initial off working state releasing brake mechanism automatically simultaneously, because of after centrifugal mechanism unloading, ball screw assembly, just can complete the action that discharges pressurized dish spring automatically, make disc type brake friction pair complete unloading, make anti-falling safety device automatically revert to initial adjustment state without artificial and Special reset instrument.Thereby the various drawbacks that need manual reset to bring are overcome after existing Anti-falling safety device for construction lift work.
In the above-described embodiment, in order to realize the adjustment to disc type brake friction pair 6 predetermincd tensions, between afterbody end-cover axle supporting seat 12 and ball-screw nut, be provided with predetermincd tension adjusting sleeve 13, predetermincd tension adjusting sleeve 13 is fixed on ball-screw 16 by screw thread, and joins by back-up ring and ball-screw nut.By adjusting the screw thread of predetermincd tension adjusting sleeve 13, realize the adjustment to formula brake friction pair predetermincd tension through ball-screw nut, pressurizing frame.
Meanwhile, produce generation friction between longitudinal travel and centrifugal mechanism 3 for fear of ball-screw 16 and cause adverse consequences, can groove be set in centrifugal mechanism 3 and ball-screw 16 corresponding sections; With or between inhibiting device be set realize.
Only conduct is to explanation of the present utility model for above-mentioned embodiment, and the technical scheme that all employings replacement identical or equivalent technologies means obtains, all belongs to this claim protection domain.
Claims (6)
1. the Anti-falling safety device for construction lift that automatically resets, comprises housing, is arranged on the gear of the large end cap of housing outside, is arranged on centrifugal mechanism and brake wheel in housing; It is characterized in that: also comprise the ball screw assembly,, pressurizing frame and the disc type brake friction pair that are positioned at housing, housing afterbody end cap is provided with afterbody end-cover axle supporting seat; One end of described its ball-screw of ball screw assembly, is connected with afterbody end-cover axle supporting seat, carries out axial location by the ball-screw locating bush being fixed on housing afterbody end-cover axle supporting seat; The other end is threaded with centrifugal mechanism location washer through brake wheel; Described centrifugal mechanism location washer is connected with brake wheel by connecting pin; The drum surface central authorities of described brake wheel are provided with a column-shaped projection frame; Described disc type brake friction pair is by the static friction sheet group of fixing with housing with by forming with the fixing movable friction plate group of brake wheel column-shaped projection frame; Described pressurizing frame is enclosed within on ball-screw and joins with disc type brake friction pair side and brake wheel column-shaped projection frame medial surface respectively; Between pressurizing frame and ball-screw nut, be provided with dish spring, ball-screw nut turns radius stay by resistance and is connected with housing afterbody end cap.
2. the one according to claim 1 Anti-falling safety device for construction lift that automatically resets, is characterized in that: between described afterbody end-cover axle supporting seat and ball-screw nut, be provided with predetermincd tension adjusting sleeve; Described predetermincd tension adjusting sleeve is threaded with ball-screw and joins by back-up ring and ball-screw nut.
3. the one according to claim 1 Anti-falling safety device for construction lift that automatically resets, is characterized in that: described ball-screw locating bush is fixed in afterbody end-cover axle supporting seat hole by screw thread, and is connected by retainer spring part between ball-screw.
4. the one according to claim 1 Anti-falling safety device for construction lift that automatically resets, is characterized in that: between described pressurizing frame and disc type brake friction pair, be provided with gap adjustment circle.
5. the one according to claim 1 Anti-falling safety device for construction lift that automatically resets, is characterized in that: described centrifugal mechanism is that ball-screw corresponding section is provided with groove.
6. the one Anti-falling safety device for construction lift that automatically resets according to claim 1 or 5, is characterized in that: between described centrifugal mechanism and ball-screw, be provided with inhibiting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083258.8U CN203740794U (en) | 2014-02-26 | 2014-02-26 | Automatic reset anti-falling safety device for construction lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083258.8U CN203740794U (en) | 2014-02-26 | 2014-02-26 | Automatic reset anti-falling safety device for construction lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203740794U true CN203740794U (en) | 2014-07-30 |
Family
ID=51340623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420083258.8U Expired - Fee Related CN203740794U (en) | 2014-02-26 | 2014-02-26 | Automatic reset anti-falling safety device for construction lift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203740794U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032234A (en) * | 2015-03-18 | 2016-10-19 | 赫仲伟 | Automatic reset anti-falling safety device |
| WO2019050447A1 (en) | 2017-09-07 | 2019-03-14 | Alimak Hek Ab | A safety brake for an elevator |
| CN109869272A (en) * | 2019-04-22 | 2019-06-11 | 杭州奇伶服饰有限公司 | A kind of wind-driven generator equipment |
| CN117755934A (en) * | 2024-01-24 | 2024-03-26 | 上海市建筑科学研究院有限公司 | Anti-falling safety device and construction lifter |
-
2014
- 2014-02-26 CN CN201420083258.8U patent/CN203740794U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032234A (en) * | 2015-03-18 | 2016-10-19 | 赫仲伟 | Automatic reset anti-falling safety device |
| CN106032234B (en) * | 2015-03-18 | 2018-02-27 | 赫仲伟 | One kind automatically resets anti-falling safety device |
| WO2019050447A1 (en) | 2017-09-07 | 2019-03-14 | Alimak Hek Ab | A safety brake for an elevator |
| EP3678971A4 (en) * | 2017-09-07 | 2021-03-31 | Alimak Group Sweden AB | A safety brake for an elevator |
| CN109869272A (en) * | 2019-04-22 | 2019-06-11 | 杭州奇伶服饰有限公司 | A kind of wind-driven generator equipment |
| CN117755934A (en) * | 2024-01-24 | 2024-03-26 | 上海市建筑科学研究院有限公司 | Anti-falling safety device and construction lifter |
| CN117755934B (en) * | 2024-01-24 | 2024-05-03 | 上海市建筑科学研究院有限公司 | Anti-falling safety device and construction lifter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WENJIAN ELECTROMECHANICAL TECHNOLOGY (SHANGHAI) CO Free format text: FORMER OWNER: DING MINGJIAN Effective date: 20141125 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200120 PUDONG NEW AREA, SHANGHAI TO: 200335 CHANGNING, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141125 Address after: 200335 Shanghai city Changning District Admiralty Road No. 10 Lane 658 1 floor room 124 Patentee after: Wenjian Electromechanical Technology (Shanghai) Co., Ltd. Address before: 200120, room 7, No. 58, Lane 1001, azalea Road, Shanghai, Pudong New Area Patentee before: Ding Mingjian |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20210226 |