CN105293245A - Winding drum type elevator anti-falling device - Google Patents
Winding drum type elevator anti-falling device Download PDFInfo
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- CN105293245A CN105293245A CN201510911418.2A CN201510911418A CN105293245A CN 105293245 A CN105293245 A CN 105293245A CN 201510911418 A CN201510911418 A CN 201510911418A CN 105293245 A CN105293245 A CN 105293245A
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- elevator
- winding drum
- drum type
- fall device
- switch
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- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention discloses a winding drum type elevator anti-falling device which comprises a control device and an anti-falling mechanism which are arranged at the top of an elevator lift car. The control device comprises a weightlessness switch and an execution mechanism, and the weightlessness switch controls the anti-falling mechanism through the execution mechanism. According to the winding drum type elevator anti-falling device, a mechanical detection control device mode is adopted, through the weightlessness switch arranged on the elevator lift car, switch-on and switch-off of the weightlessness switch are conducted according to the weightlessness state generated when an elevator descends at an overspeed, brake of the anti-falling device is achieved, the anti-falling device is accurate in detection speed and reliable in fault detection, the work performance of the anti-falling device can be remarkably improved, execution and closing can be conducted automatically, anti-falling automation is high, and the anti-falling performance of the elevator is reliable.
Description
Technical field
The invention belongs to the security technology area of the jacking equipment such as elevator and elevator aspect, be specifically related to a kind of elevator of winding drum type anti-fall device.
Background technology
Along with the development of urban construction, skyscraper is on the increase, and elevator has a wide range of applications in national economy and life.Elevator is inseparable with daily life as the vehicle run vertical in skyscraper.But elevator operationally, used during elevator falling phenomenon is even generation, and serious threat the people's lives and property safety, causes irremediable loss.
The anti-fall device that current elevator uses is made up of set of system such as velocity limiter, wirerope, tightening device, clump weights, wirerope is around being arranged on the velocity limiter runner of building top layer machine room with elevator up-and-down movement, anti-drop function is realized by tightening device, but, the wirerope of existing speed limit type elevator anti-fall device is oversize, building has how high wirerope how long will have, this just makes this device there are three shortcomings, and one is be easy to be subject to other object at the wirerope that Lift out of order tenesmus duration is long to disturb misoperation of breaking down; Two is that wirerope is longer because wirerope has larger elasticity, and during its action, range of extension is also longer under tension, thus cause braking time to postpone, reduce the safety of elevator, under the elevator tenesmus crisis situations remembered with second, this is the shortcoming that can not be ignored; Three is that the length of wirerope is directly related with elevator cost, and long wirerope must cause high cost.
Summary of the invention
For above-mentioned the deficiencies in the prior art, it is fast that the present invention aims to provide a kind of reaction, and brake efficiency is high, the elevator of winding drum type anti-fall device that lift running safety is high.
For solving the problems of the technologies described above, the present invention adopts such technical scheme: elevator of winding drum type anti-fall device, comprise the control setup and safety dropping prevent mechanism that are arranged on elevator car roof, described control setup comprises weightlessness switch and actuating unit, and described weightlessness switch is controlled safety dropping prevent mechanism by actuating unit; Described weightlessness switch comprises pedestal, pressure spring, weighted spherical ball and switch enclosure, the described pedestal being provided with switch enclosure is fixed on elevator car roof, weighted spherical ball is arranged in switch enclosure, and described pressure spring one end is fixed on pedestal, and the other end contacts with the weighted spherical ball be arranged in switch enclosure; Described actuating unit comprises bearing, spline bearing, frizzen and dog link, and described spline bearing is fixedly installed on bearing, and frizzen and dog link are symmetrical or be asymmetricly arranged on spline bearing; Described safety dropping prevent mechanism comprises safety tongs, leading sheave, rope sheave, clockwork spring, stop bar, drag-line, permanent seat and rotating shaft, and described safety tongs is arranged between lift car and cage guide; Described drag-line connects rope sheave, leading sheave and safety tongs successively; Control rope sheave by control setup and folding and unfolding is carried out to drag-line, make safety tongs execution and stopping realize the anti-drop function of safety dropping prevent mechanism.
Elevator of winding drum type anti-fall device of the present invention, when elevator normally runs, the weighted spherical ball of described weightlessness switch is pressed in pressure spring in switch enclosure, spline bearing transfixion, frizzen is in the top of pressure spring, stop bar drives rope sheave that clockwork spring is tightened up by rotation and rotating shaft, stop bar transfixion is pushed down by dog link, clockwork spring is made to keep bending strained condition of tightening up, safety tongs now and drag-line are in relaxation state under the effect of clockwork spring, and safety tongs unclamps the contact with cage guide, when elevator is improper run to bottom time, lift car can be in state of weightlessness, and the weighted spherical ball in weightlessness switch can lose some or all of weight under state of weightlessness, the spring that it is pushed down will eject switch enclosure, high force blow is fixed on the frizzen on spline bearing, make spline bearing rotary, be fixed on dog link on spline bearing and stop bar departs from, unclamp the stop bar be connected with execution bar, now the strained condition get out of hand tightened up and stretching of clockwork spring flicks, be provided with the rotating shaft then twirl under clockwork spring stretching, extension flicks the application force of generation of rope sheave, thus make rope sheave tighten up the drag-line be connected with safety tongs, safety tongs is started by drag-line, safety tongs is gripping elevator guide rails therefore, elevator is made to stop tenesmus, thus ensure the safety of elevator passenger.
As another embodiment of the invention, described control setup is substituted by the induction electric-controlled type mechanism being arranged on elevator car roof, described induction electric-controlled type mechanism comprises sensor, control element and is provided with the spline motor of relay, sensor with the up-and-down movement of lift car along cage guide up-and-down movement, the rotating shaft of spline motor arranges brake rod contact with stop bar, control element connecting sensor and relay; Described sensor is the one of speed sensor, acceleration pick-up and pressure sensor; In unit time, when described sensor sensing exceedes the peak of setting to elevator car speed, control element sends control signal, the work of control signal commander relay, and relay will connect the power supply of spline motor, start spline motor to rotate, make dog link fixed thereon unclamp the stop bar be fixed in rotating shaft, rope sheave rotates under the driving of clockwork spring, drives cable pull safety tongs, make safety tongs block cage guide, thus play the effect stoping elevator tenesmus.
Beneficial effect: elevator of winding drum type anti-fall device of the present invention, structure is simple, easy for installation, adopt mechanical detection control setup mode, utilize the weightlessness switch installed on the elevator car, the folding of weightlessness switch is carried out according to the state of weightlessness of the hypervelocity decline generation of elevator, and realize the braking of anti-fall device, anti-fall device detection speed is accurate, detection failure is reliable, the serviceability of anti-fall device can be significantly improved, can automatically perform and closedown, anti-fall degree of automation is high, the anti-fall dependable performance of elevator, reduce cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of control setup in the present invention;
Fig. 3 is the left view of control setup in the present invention;
Fig. 4 is the structural representation of the embodiment of the present invention two;
Number in the figure: 1 ~ weightlessness switch, 1a ~ pedestal, 1b ~ pressure spring, 1c ~ weighted spherical ball, 1d ~ switch enclosure, 2 ~ actuating unit, 2a ~ bearing, 2b ~ spline bearing, 2c ~ frizzen, 2d ~ dog link, 3 ~ safety dropping prevent mechanism, 3a ~ safety tongs (3a), 3b ~ leading sheave, 3c ~ rope sheave, 3d ~ clockwork spring, 3e ~ stop bar, 3f ~ drag-line, 3g ~ permanent seat, 3h ~ rotating shaft, 4 ~ sensor, 5 ~ relay, 6 ~ motor.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated, but must not be limited the present invention by any way, and any change done based on training centre of the present invention or improvement, all belong to protection scope of the present invention.
Embodiment one
Elevator of winding drum type anti-fall device with reference to the accompanying drawings shown in 1, comprise the control setup and safety dropping prevent mechanism 3 that are arranged on elevator car roof, described control setup comprises weightlessness switch 1 and actuating unit 2, and described weightlessness switch 1 is controlled by actuating unit 2 pairs of safety dropping prevent mechanisms 3.
With reference to the accompanying drawings 2, the described weightlessness switch 1 shown in accompanying drawing 3 comprises pedestal 1a, pressure spring 1b, weighted spherical ball 1c and switch enclosure 1d, the described pedestal 1a being provided with switch enclosure 1d is fixed on elevator car roof, weighted spherical ball 1c is arranged in switch enclosure 1d, described pressure spring 1b one end is fixed on pedestal 1a, and the other end contacts with the weighted spherical ball 1c be arranged in switch enclosure 1d.
With reference to the accompanying drawings 2, the described actuating unit 2 shown in accompanying drawing 3 comprises bearing 2a, spline bearing 2b, frizzen 2c and dog link 2d, described spline bearing 2b is fixedly installed on bearing 2a, and frizzen 2c and dog link 2d are symmetrical or be asymmetricly arranged on spline bearing 2b.
With reference to the accompanying drawings 2, the described safety dropping prevent mechanism 3 shown in accompanying drawing 3 comprises safety tongs 3a, leading sheave 3b, rope sheave 3c, clockwork spring 3d, stop bar 3e, drag-line 3f, permanent seat 3g and rotating shaft 3h, and described safety tongs 3a is arranged between lift car and cage guide; Described drag-line 3f connects rope sheave 3c, leading sheave 3b and safety tongs 3a successively; Control rope sheave 3c by control setup and folding and unfolding is carried out to drag-line 3f, safety tongs 3a is firmly grasped or decontrols guide rail.
With reference to the accompanying drawings 1, accompanying drawing 2, the described rope sheave 3c shown in accompanying drawing 3 be arranged on permanent seat 3g by rotating shaft 3h, and rope sheave 3c is driven by clockwork spring 3d; Described clockwork spring 3d is arranged on the both sides of rope sheave 3c, and one end of clockwork spring 3d is fixed on rope sheave 3c, and the other end is fixed on permanent seat 3g, makes clockwork spring 3d drive rope sheave 3c to rotate.
Described stop bar 3e is arranged on rotating shaft 3h, and the height of described stop bar 3e lower than dog link 2d height, and contacts with dog link 2d, and is pushed down by dog link 2d.
Described frizzen 2c and dog link 2d can rotate with spline bearing 2b.
Leading sheave 3b with reference to the accompanying drawings shown in 1 has two, the symmetrical or asymmetric joint portion being arranged on lift car compartment top and side; Described safety tongs 3a at least configures 2, and leading sheave 3b prevents from drag-line 3f and lift car from producing rubbing, and causes drag-line 3f and lift car to damage, and play the guiding role.
With reference to the accompanying drawings 2, the described frizzen 2c shown in accompanying drawing 3 is positioned at the side of switch enclosure 1d and pressure spring 1b, the top of pressure spring 1b; Described pressure spring 1b is arranged at below weighted spherical ball 1c, and is pushed down by weighted spherical ball 1c, and the length of described pressure spring 1b is 1.5 ~ 3 times of the height bottom switch enclosure 1d to pedestal 1a; The one side that described switch enclosure 1d contacts with pressure spring 1b is provided with the turnover groove of pressure spring 1b.
Embodiment two
According to Fig. 4, as another embodiment of the invention, the present embodiment is substituted by the induction electric-controlled type mechanism being arranged on elevator car roof with described control setup on the basis of embodiment one, described induction electric-controlled type mechanism comprises sensor 4, control element and is provided with the spline motor 6 of relay 5, sensor 4 with the up-and-down movement of lift car along cage guide up-and-down movement, the rotating shaft of spline motor 6 is arranged brake rod 7 to contact with stop bar 3e, control element connecting sensor 4 and relay 5; Described sensor 4 is the one of speed sensor, acceleration pick-up and pressure sensor; In unit time, when described sensor 4 senses that elevator car speed exceedes the peak of setting, control element sends control signal, control signal commander relay 5 works, relay 5 will connect the power supply of spline motor 6, start spline motor 6 to rotate, dog link 2d fixed thereon is made to unclamp the stop bar 3e be fixed on rotating shaft 3h, rope sheave 3c rotates under the driving of clockwork spring 3d, drag-line 3f is driven to strain safety tongs 3a, make safety tongs 3a block cage guide, thus play the effect stoping elevator tenesmus.
principle of work of the present invention and mode:
When elevator normally runs, the weighted spherical ball 1c of described weightlessness switch 1 is pressed in pressure spring 1b in switch enclosure 1d, spline bearing 2b transfixion, frizzen 2c is in the side of pressure spring 1b, perform bar 3f prestressed spring 3c is pulled open, stop bar 3e transfixion is pushed down by dog link 2d, frizzen is in the top of pressure spring, stop bar 3e is tightened up by rotatable sheave 3c the clockwork spring 3d being arranged on rope sheave 3c both sides, stop bar transfixion is pushed down by dog link 2d, clockwork spring 3d is made to keep bending strained condition of tightening up, safety tongs 3a now and drag-line 3f is in relaxation state under the effect of clockwork spring 3d, safety tongs 3a unclamps the contact with cage guide, elevator is normally run, when elevator is improper run to bottom time, lift car can be in state of weightlessness, and the weighted spherical ball 1c in weightlessness switch 1 can lose some or all of weight under state of weightlessness, weighted spherical ball 1c will be pushed up by pressure spring 1b the pressure lost pressure spring 1b to one side, pressure spring 1b ejects switch enclosure 1d and high force blow is fixed on the frizzen 2c on spline bearing 2b, promote spline bearing 2b to rotate, make to be fixed on dog link 2d on spline bearing 2b and stop bar 3e to depart from, the strained condition get out of hand tightened up and stretching now being arranged on the clockwork spring 3d of rope sheave 3c both sides flicks, be arranged on the rope sheave 3c then twirl under clockwork spring 3d application force on rotating shaft 3h, thus tighten up the drag-line 3f be connected with safety tongs 3a, safety tongs 3a is started by drag-line 3f, safety tongs 3a therefore gripping elevator guide rails, elevator is made to stop tenesmus, thus ensure the safety of elevator passenger.
The present invention can replace existing speed limit type elevator anti-fall device, also can with existing speed limit type elevator anti-fall device conbined usage, as the redundant safety device of elevator, increase the safety of elevator.
Claims (10)
1. elevator of winding drum type anti-fall device, it is characterized in that: comprise the control setup and safety dropping prevent mechanism (3) that are arranged on elevator car roof, described control setup comprises weightlessness switch (1) and actuating unit (2), and described weightlessness switch (1) is controlled safety dropping prevent mechanism (3) by actuating unit (2).
2. elevator of winding drum type anti-fall device according to claim 1, it is characterized in that: described weightlessness switch (1) comprises pedestal (1a), pressure spring (1b), weighted spherical ball (1c) and switch enclosure (1d), the described pedestal (1a) being provided with switch enclosure (1d) is fixed on elevator car roof, weighted spherical ball (1c) is arranged in switch enclosure (1d), described pressure spring (1b) one end is fixed on pedestal (1a), and the other end contacts with the weighted spherical ball (1c) be arranged in switch enclosure (1d).
3. elevator of winding drum type anti-fall device according to claim 1, it is characterized in that: described actuating unit (2) comprises bearing (2a), spline bearing (2b), frizzen (2c) and dog link (2d), described spline bearing (2b) is fixedly installed on bearing (2a), and frizzen (2c) and dog link (2d) are symmetrical or be asymmetricly arranged on spline bearing (2b).
4. elevator of winding drum type anti-fall device according to claim 1, it is characterized in that: described safety dropping prevent mechanism (3) comprises safety tongs (3a), leading sheave (3b), rope sheave (3c), clockwork spring (3d), stop bar (3e), drag-line (3f), permanent seat (3g) and rotating shaft (3h), and described safety tongs (3a) is arranged between lift car and cage guide; Described drag-line (3f) connects rope sheave (3c), leading sheave (3b) and safety tongs (3a) successively; Control rope sheave (3c) by control setup and folding and unfolding is carried out to drag-line (3f), safety tongs (3a) is firmly grasped or decontrols guide rail.
5. elevator of winding drum type anti-fall device according to claim 4, is characterized in that: described rope sheave (3c) is arranged on permanent seat (3g) by rotating shaft (3h), and rope sheave (3c) is driven by clockwork spring (3d); Described clockwork spring (3d) is arranged on the both sides of rope sheave (3c), and one end of clockwork spring (3d) is fixed on rope sheave (3c), and the other end is fixed on permanent seat (3g), makes clockwork spring (3d) drive rope sheave (3c) to rotate.
6. elevator of winding drum type anti-fall device according to claim 4, it is characterized in that: described stop bar (3e) is arranged in rotating shaft (3h), the height of described stop bar (3e) lower than dog link (2d) highly, and described stop bar (3e) contacts with dog link (2d), and pushed down by dog link (2d).
7. elevator of winding drum type anti-fall device according to claim 3, is characterized in that: described frizzen (2c) and dog link (2d) can in the upper rotations of spline bearing (2b).
8. elevator of winding drum type anti-fall device according to claim 4, is characterized in that: leading sheave (3b) has two, the symmetrical or asymmetric joint portion being arranged on lift car compartment top and side; Described safety tongs (3a) at least configures 2.
9. elevator of winding drum type anti-fall device according to claim 3, is characterized in that: described frizzen (2c) is positioned at the side of switch enclosure (1d) and pressure spring (1b), the top of pressure spring (1b); Described pressure spring (1b) is arranged at weighted spherical ball (1c) below, and is pushed down by weighted spherical ball (1c), and the length of described pressure spring (1b) is 1.5 ~ 3 times of the height bottom switch enclosure (1d) to pedestal (1a); The one side that described switch enclosure (1d) contacts with pressure spring (1b) is provided with the turnover groove of pressure spring (1b).
10. elevator of winding drum type anti-fall device according to claim 1, it is characterized in that: described control setup adopts the induction electric-controlled type mechanism being arranged on elevator car roof to substitute, described induction electric-controlled type mechanism comprises sensor (4), control element and is provided with the spline motor (6) of relay (5), sensor (4) with the up-and-down movement of lift car along cage guide up-and-down movement, the rotating shaft of spline motor (6) is arranged brake rod (7) to contact with stop bar (3e), control element connecting sensor (4) and relay (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510911418.2A CN105293245B (en) | 2015-12-11 | 2015-12-11 | Elevator of winding drum type anti-fall device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510911418.2A CN105293245B (en) | 2015-12-11 | 2015-12-11 | Elevator of winding drum type anti-fall device |
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| Publication Number | Publication Date |
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| CN105293245A true CN105293245A (en) | 2016-02-03 |
| CN105293245B CN105293245B (en) | 2017-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510911418.2A Expired - Fee Related CN105293245B (en) | 2015-12-11 | 2015-12-11 | Elevator of winding drum type anti-fall device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107806020A (en) * | 2017-11-18 | 2018-03-16 | 曾小真 | A kind of overhead job platform of bridge construction |
| CN113636489A (en) * | 2021-08-09 | 2021-11-12 | 中国建筑第七工程局有限公司 | Prefabricated floor self-adaptation regulation transportation platform |
| WO2022172406A1 (en) * | 2021-02-12 | 2022-08-18 | 三菱電機株式会社 | Elevator device |
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| CN2539270Y (en) * | 2002-04-26 | 2003-03-05 | 莫熙秋 | Weightlessness switch |
| JP2004345803A (en) * | 2003-05-22 | 2004-12-09 | Toshiba Elevator Co Ltd | Emergency stop device of elevator, emergency stop return device and emergency stop return method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806020A (en) * | 2017-11-18 | 2018-03-16 | 曾小真 | A kind of overhead job platform of bridge construction |
| WO2022172406A1 (en) * | 2021-02-12 | 2022-08-18 | 三菱電機株式会社 | Elevator device |
| JP7418895B2 (en) | 2021-02-12 | 2024-01-22 | 三菱電機株式会社 | elevator equipment |
| CN113636489A (en) * | 2021-08-09 | 2021-11-12 | 中国建筑第七工程局有限公司 | Prefabricated floor self-adaptation regulation transportation platform |
| CN113636489B (en) * | 2021-08-09 | 2023-03-10 | 中国建筑第七工程局有限公司 | Prefabricated floor self-adaptation regulation transportation platform |
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| Publication number | Publication date |
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| CN105293245B (en) | 2017-07-07 |
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