CN103253577A - Speed-limiting braking system for hanging elevator - Google Patents
Speed-limiting braking system for hanging elevator Download PDFInfo
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- CN103253577A CN103253577A CN2013101913578A CN201310191357A CN103253577A CN 103253577 A CN103253577 A CN 103253577A CN 2013101913578 A CN2013101913578 A CN 2013101913578A CN 201310191357 A CN201310191357 A CN 201310191357A CN 103253577 A CN103253577 A CN 103253577A
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- speed
- belt pulley
- brake system
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Abstract
Provided is a speed-limiting braking system for a hanging elevator. The speed-limiting braking system for the hanging elevator comprises a support, a speed control system and a braking system. The speed control system and the braking system are both mounted on the support. The speed control system adopts a centrifugal pin to work under the action of centrifugal force and drives the braking system to run when speed exceeds limited speed. According to the speed-limiting braking system for the hanging elevator, the speed control system and the braking system are both directly arranged on the support of an elevator box body, the defect that the remote control of a speed governor and the remote control of a safety gear cannot be synchronous and timely is avoided, and the defect that the speed governor and the safety gear are out of operation is avoided. The speed-limiting braking system for the hanging elevator is sensitive in triggering, safe and reliable, if only the speed exceeds a preset safety value, the elevator is made to be stopped, and when a set spring is out of operation, the support ejects out the centrifugal pin, the braking system is turned to jam the elevator to stop running, and danger is prevented from occurring.
Description
Technical field
The present invention relates to a kind of suspension elevator speed-controlling device, especially relate to a kind of for the limiting brake system that hangs elevator.
Background technology
Elevator safety mainly contains velocity limiter and safety tongs cooperation composition elevator safety system at present.Velocity limiter is the safety guard of elevator, it at any time Monitoring and Controlling the speed of car, when the supervelocity situation occurring, namely 115% of rated speed of lift o'clock, can in time send signal, produce mechanical action then and cut off feed circuit, make the towing machine braking.The safety tongs action that is installed in the car bottom if elevator still can't be braked is forced stop with car.The elevator safety clamp device is under the manipulation of velocity limiter, when elevator speed surpasses the limited speed that velocity limiter is set, or takes place under fracture and the lax situation at suspension strop, with the urgent stop of car and be clamped in a kind of safety device on the guide rail.It provides the actv. protective effect to the safe operation of elevator, generally it is installed on car frame or the counterweight frame.But, in to the check of limit device and safety tongs, find the part elevator because maintaining is not good at, cause the normal job requirement of the basic out of reach of this safety device, mainly there is following point:
1, because the velocity limiter spring is in repeatedly flexible state for a long time, its responsiveness of adjusting is changed;
2, because the variation of steel rope self is extended, cause tightening device to contact to earth, make steel wire rope tension not enough, skid;
3, connecting rod torque arm running part oil starvation, the corrosion of safety tongs cause hoisting force to substantially exceed the power of preestablishing;
4, initiatively lever is terminal excessive with safety tongs gang switch distance, and when torque arm was mentioned, switch can not move simultaneously;
5, voussoir and rail-sides driving surface excessive clearance are mentioned at connecting rod, and the voussoir card does not live guide rail;
6, greasy dirt is too much in the voussoir, and unclamping the torque arm back wedge can not reset, and causes guide rail impaired.
7, check, maintenance, repair complexity, and potential problem is difficult in time being found.
The existence of these problems not only makes this system become ornaments, and makes the people produce psychic numbing easily, and potential hazard is bigger.
Summary of the invention
The objective of the invention is the deficiency for solving the problems of the technologies described above, provide a kind of for the limiting brake system that hangs elevator, this system architecture is simple, sensitive reliable, can make overspeed lift force to stop under multiple reason, check simultaneously, maintenance, repair process are simple, when running into spring failure, elevator directly card stops the hidden danger of not pinpointing the problems and causing when avoiding keeping in repair.
The present invention is the deficiency that solves the problems of the technologies described above, and the technical scheme that adopts is:
A kind of for the limiting brake system that hangs elevator, comprise support, control speed system and brake system, control speed system and brake system are installed on the support, described control speed system, comprise friction wheel, big belt pulley, small belt pulley, coupling rod, pressure lever mechanism and active lever body, described friction wheel and the coaxial setting of big belt pulley, big belt pulley and small belt pulley rotate and are arranged on the coupling rod two ends, the coupling end of small belt pulley and coupling rod is fixed on the support, big belt pulley and small belt pulley link by belt, pressure lever mechanism is pressed on the coupling rod, friction wheel is attached on the access to elevators, and described active lever body comprises centrifugal wheel, spring and centrifugal lock, the coaxial setting of centrifugal wheel and small belt pulley, centrifugal lock is arranged on centrifugal wheel inside, and is connected with the spring of application force sensing centrifugal wheel pivot center;
Described brake system, comprise driven lever body and strut mechanism, driven lever body drives the work of strut mechanism under the active lever body drives, described strut mechanism comprises a strut, one end of strut is relative with the access to elevators inwall, the other end is provided with slide plate, be connected with application force on the slide plate towards the back-moving spring of access to elevators inwall, the spring force that two depression bars that are hinged overcome back-moving spring is supported between slide plate and the support, on two depression bars, hinge-point place near two depression bars is provided with the locating piece that has hook respectively, the hook of two locating pieces is oppositely arranged, form a hanging groove that has opening, be provided with taper in the hanging groove and pull pin, taper is pulled pin and is connected with driven lever body.
Described pressure lever mechanism comprises holddown spring, guide rod, slide cartridge and baffle plate, baffle plate is installed on the guide rod, and guide rod one end is fixed on the support, and the other end is slidingly arranged in the slide cartridge, slide cartridge is hinged on and compresses on the coupling rod, and the holddown spring that is provided with predetermincd tension is fixed on baffle plate and compresses between the coupling rod.
Described driven lever body comprises driving lever, connecting rod, sleeve and support guide rod, support guide rod is fixed on the support, driving lever rotates and is arranged on the support, driving lever one end is near centrifugal wheel, the other end is connected on the sleeve, driving lever drives sleeve and slides up and down along support guide rod, and described connecting rod one end is hinged on the sleeve lateral wall, and the connecting rod other end is connected with strut mechanism.
Described two depression bar horizontal supports that are hinged are between slide plate and support.
Described guide rod is hinged on the support.
The invention has the beneficial effects as follows: hollow speed system of the present invention and brake system all are set directly on the elevator box support, avoid velocity limiter and asynchronous, the untimely drawback of safety tongs distance control, the drawback of avoiding velocity limiter and safety tongs to lose efficacy, and trigger sensitive, safe and reliable, as long as speed is greater than default safety value, elevator is stopped, simultaneously during the spring failure of setting, support ejects centrifugal lock, stir brake system, make that elevator is stuck to shut down, avoid occurring dangerous.
Description of drawings
Fig. 1 is structural representation of the present invention
Graphical indicia: 1, depression bar; 2, locating piece; 3, taper is pulled pin; 4, connecting rod; 5, sleeve; 6, support guide rod; 7, driving lever; 8, baffle plate; 9, holddown spring; 10, guide rod; 10-1, slide cartridge; 11, compress coupling rod; 12, access to elevators; 13, friction wheel; 14, big belt pulley; 15, belt; 16, centrifugal wheel; 17, spring; 18, small belt pulley; 19, centrifugal lock; 20, support; 21, strut; 22, back-moving spring; 23, slide plate.
The specific embodiment
Shown in the figure, the specific embodiment is as follows:
A kind of limiting brake system for the suspension elevator comprises support 20, control speed system and brake system, and control speed system and brake system are installed on the support 20,
Described control speed system, comprise friction wheel 13, big belt pulley 14, small belt pulley 18, coupling rod 11, pressure lever mechanism and active lever body, described friction wheel 13 and big belt pulley 14 coaxial settings, big belt pulley 14 and small belt pulley 18 rotate and are arranged on coupling rod 11 two ends, small belt pulley 18 is fixed on the support 20 with the coupling end of coupling rod 11, big belt pulley 14 and small belt pulley 18 are by belt 15 interlocks, pressure lever mechanism is pressed on the coupling rod 11, friction wheel 13 is attached on the access to elevators 12, described active lever body comprises centrifugal wheel 16, spring 17 and centrifugal lock 19, centrifugal wheel 16 and small belt pulley 18 coaxial settings, centrifugal lock 19 is arranged on centrifugal wheel 16 inside, and be connected with spring 17 that application force points to centrifugal wheel 16 pivot centeres, in the time of the elevator normal operation, centrifugal lock 19 under spring 17 application forces, shrink with centrifugal wheel 16 in do not eject, when elevator is out of control since the elevator descending speed accelerate, the centrifugal wheel rotating speed accelerates, centrifugal lock 19 has overcome spring 17 application forces under centrifugal action, eject;
Described brake system, comprise driven lever body and strut mechanism, driven lever body drives the work of strut mechanism under the active lever body drives, described strut mechanism comprises a strut 21, one end of strut 21 is relative with access to elevators 12 inwalls, the other end is provided with slide plate 23, be connected with application force on the slide plate 23 towards the back-moving spring 22 of access to elevators 12 inwalls, the spring force that two depression bars that are hinged 1 overcome back-moving spring 22 is supported between slide plate 23 and the support 20, on two depression bars 1, hinge-point place near two depression bars 1 is provided with the locating piece 2 that has hook respectively, the hook of two locating pieces 2 is oppositely arranged, form a hanging groove that has opening, be provided with taper in the hanging groove and pull pin 3, taper is pulled pin and 3 is connected with driven lever body, under the normal circumstances, slide plate 23 bears the force balance setting of application force and the depression bar 1 of back-moving spring 22, two locating pieces 2 are receiving that the masterpiece time spent compresses taper and pulls pin 3, make strut 21 go out the balance self-locking state always, centrifugal lock 19 has overcome spring 17 application forces under centrifugal action when elevator is out of control, driven lever body work is stirred in ejection, drive taper and pull pin and 3 rise and broken the balance of strut 21, make strut 21 eject.
Described pressure lever mechanism comprises holddown spring 9, guide rod 10, slide cartridge 10-1 and baffle plate 8, baffle plate 8 is installed on the guide rod 10, guide rod 10 1 ends are fixed on the support 20, the other end is slidingly arranged in the slide cartridge 10-1, slide cartridge 10-1 is hinged on and compresses on the coupling rod 11, the holddown spring 9 that is provided with predetermincd tension is fixed on baffle plate 8 and compresses between the coupling rod 11, the application force effect of holddown spring 9 and baffle plate 8 and compress between the coupling rod 11, make that compressing coupling rod 11 drive friction wheels 13 is attached on the access to elevators 12, friction wheel 13 is combined with the elevator inwall, make friction wheel 13 rotating speeds can with the proportional variation relation of elevator descending speed, friction wheel speed accelerated when elevator was out of control.
Described driven lever body comprises driving lever 7, connecting rod 4, sleeve 5 and support guide rod 6, support guide rod 6 is fixed on the support 20, driving lever 7 rotates and is arranged on the support, driving lever 7 one ends are near centrifugal wheel 16, the other end is connected on the sleeve 5, driving lever 7 drives sleeve 5 and slides up and down along support guide rod 6, described connecting rod 4 one ends are hinged on sleeve 5 sidewalls, connecting rod 4 other ends are connected with strut mechanism, the centrifugal lock 19 of active lever body ejected and stirs driving lever 7 near an end of centrifugal wheels 16 when elevator was out of control, made driven lever body turn round.
Described two depression bar that is hinged 1 horizontal supports are between slide plate 23 and support 20.
Described guide rod 10 is hinged on the support 20.
The principle that the present invention is based on is as follows: one, centrifugal wheel pin control speed principle.Friction wheel and access to elevators frictional rotation, drive belt pulley and centrifugal wheel rotate, and it is more fast to make that elevator descends, and centrifugal wheel rotates more fast, and the outside distance of extending of elastic force that centrifugal lock can overcome spring is more big, can stir driving lever and rotate when elevator overspeed.Two, depression bar equilibrium principle.The spring that compresses and connecting rod constitute depression bar, have only transverse force, are in dead center position, the depression bar balance; When the depression bar mid point be subjected to taper pull pin to vertical component after, transient equilibrium is broken, spring elongation, strut ejects, elevator stops rapidly.
The present invention is in use by holddown spring 9, and the hold-down mechanism that guide rod 10 is formed presses coupling rod 11, makes friction wheel 13 press access to elevators 12 frictional rotation all the time, drives centrifugal wheel 16 by big belt pulley 14 and small belt pulley 18 simultaneously and rotates.Wheel disc inner spring 17 tension centrifugal locks 19 do not expose it during normal operation; Out of control when elevator, when rotating speed improved, to overhanging, if rotating speed is during greater than a certain safety value, centrifugal lock 19 was with driving lever 7 contacts and press and turn over certain angle and could separate under centrifugal action for centrifugal lock 19.This process can make sleeve 5 along support guide rod 6 segment distance that rises, and sleeve 5 lower ends connect connecting rod 4 and drive depression bars 1 node place taper and pull pin and 3 move up; Depression bar 1 has back-moving spring 22 tensions, be in self-locking state, capable 3 one the very little vertical component of pulling pin of awl this moment are just broken the depression bar balance, taper this moment is pulled pin and 3 is driven open semi grooves 2 upward movement together, give 1 one component that make progress of depression bar, make depression bar 1 further folding, strut 20 ejects casing under the spring force effect, insert in the interior road of the elevator groove, make elevator out of control stop to descend.
The technical scheme that the present invention is cited and embodiment are not to be restriction, with the cited technical scheme of the present invention and embodiment is equal to or the effect same approach all in the scope that the present invention protects.
Claims (5)
1. a limiting brake system that is used for hanging elevator comprises support (20), control speed system and brake system, and control speed system and brake system are installed on the support (20), it is characterized in that:
Described control speed system, comprise friction wheel (13), big belt pulley (14), small belt pulley (18), coupling rod (11), pressure lever mechanism and active lever body, described friction wheel (13) and the coaxial setting of big belt pulley (14), big belt pulley (14) and small belt pulley (18) rotate and are arranged on coupling rod (11) two ends, small belt pulley (18) is fixed on the support (20) with the coupling end of coupling rod (11), big belt pulley (14) and small belt pulley (18) are by belt (15) interlock, pressure lever mechanism is pressed on the coupling rod (11), make friction wheel (13) be attached to access to elevators (12) on, described active lever body comprises centrifugal wheel (16), spring (17) and centrifugal lock (19), centrifugal wheel (16) and the coaxial setting of small belt pulley (18), centrifugal lock (19) is arranged on centrifugal wheel (16) inside, and is connected with the spring (17) of application force sensing centrifugal wheel (16) pivot center;
Described brake system, comprise driven lever body and strut mechanism, driven lever body drives the work of strut mechanism under the active lever body drives, described strut mechanism comprises a strut (21), one end of strut (21) is relative with access to elevators (12) inwall, the other end is provided with slide plate (23), be connected with application force on the slide plate (23) towards the back-moving spring (22) of access to elevators (12) inwall, the spring force that two depression bars that are hinged (1) overcome back-moving spring (22) is supported between slide plate (23) and the support (20), on two depression bars (1), hinge-point place near two depression bars (1) is provided with the locating piece (2) that has hook respectively, the hook of two locating pieces (2) is oppositely arranged, form a hanging groove that has opening, be provided with taper in the hanging groove and pull pin (3), taper pull pin (3) be connected with driven lever body.
2. according to claim 1 a kind of for the limiting brake system that hangs elevator, it is characterized in that: described pressure lever mechanism comprises holddown spring (9), guide rod (10), slide cartridge (10-1) and baffle plate (8), baffle plate (8) is installed on the guide rod (10), guide rod (10) one ends are fixed on the support (20), the other end is slidingly arranged in the slide cartridge (10-1), slide cartridge (10-1) is hinged on and compresses on the coupling rod (11), and the holddown spring (9) that is provided with predetermincd tension is fixed on baffle plate (8) and compresses between the coupling rod (11).
3. according to claim 1 a kind of for the limiting brake system that hangs elevator, it is characterized in that: described driven lever body comprises driving lever (7), connecting rod (4), sleeve (5) and support guide rod (6), support guide rod (6) is fixed on the support (20), driving lever (7) rotates and is arranged on the support, driving lever (7) one ends are near centrifugal wheel (16), the other end is connected on the sleeve (5), driving lever (7) drives sleeve (5) and slides up and down along support guide rod (6), described connecting rod (4) one ends are hinged on sleeve (5) sidewall, and connecting rod (4) other end is connected with strut mechanism.
4. according to claim 1 a kind of for the limiting brake system that hangs elevator, it is characterized in that: described two depression bars that are hinged (1) horizontal support is between slide plate (23) and support (20).
5. according to claim 2 a kind of for the limiting brake system that hangs elevator, it is characterized in that: described guide rod (10) is hinged on the support (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310191357.8A CN103253577B (en) | 2013-05-22 | 2013-05-22 | A kind of limiting brake system for hanging elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310191357.8A CN103253577B (en) | 2013-05-22 | 2013-05-22 | A kind of limiting brake system for hanging elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103253577A true CN103253577A (en) | 2013-08-21 |
| CN103253577B CN103253577B (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310191357.8A Expired - Fee Related CN103253577B (en) | 2013-05-22 | 2013-05-22 | A kind of limiting brake system for hanging elevator |
Country Status (1)
| Country | Link |
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| CN (1) | CN103253577B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103767837A (en) * | 2014-01-10 | 2014-05-07 | 河南科技大学第一附属医院 | Multifunctional wheelchair |
| CN103767835A (en) * | 2014-01-10 | 2014-05-07 | 河南科技大学第一附属医院 | Wheelchair with warm keeping protective bands |
| CN107555281A (en) * | 2017-10-12 | 2018-01-09 | 华中科技大学 | Device for preventing elevator from falling and elevator |
| CN108996357A (en) * | 2018-08-27 | 2018-12-14 | 北京凯瑞通电子技术有限公司 | A kind of elevator prevents mechanical stuck device out of control |
| CN115092789A (en) * | 2022-08-25 | 2022-09-23 | 河南起升智能科技有限公司 | Accidental movement prevention device, accidental movement prevention assembly and elevator |
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| JP2012188246A (en) * | 2011-03-11 | 2012-10-04 | Mitsubishi Electric Corp | Emergency stop device for elevator |
| CN203419656U (en) * | 2013-05-22 | 2014-02-05 | 河南科技大学 | Speed limiting and braking system used for suspension elevator |
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2013
- 2013-05-22 CN CN201310191357.8A patent/CN103253577B/en not_active Expired - Fee Related
Patent Citations (8)
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| JPH07121793B2 (en) * | 1989-05-29 | 1995-12-25 | 三菱電機株式会社 | Elevator governor operating speed detector |
| CN1993289A (en) * | 2005-04-20 | 2007-07-04 | 三菱电机株式会社 | Traction device for elevator |
| CN102196986A (en) * | 2008-10-24 | 2011-09-21 | 因温特奥股份公司 | Velocity limiter for an elevator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103767837A (en) * | 2014-01-10 | 2014-05-07 | 河南科技大学第一附属医院 | Multifunctional wheelchair |
| CN103767835A (en) * | 2014-01-10 | 2014-05-07 | 河南科技大学第一附属医院 | Wheelchair with warm keeping protective bands |
| CN103767837B (en) * | 2014-01-10 | 2015-11-18 | 河南科技大学第一附属医院 | A kind of multifunctional wheelchair |
| CN107555281A (en) * | 2017-10-12 | 2018-01-09 | 华中科技大学 | Device for preventing elevator from falling and elevator |
| CN107555281B (en) * | 2017-10-12 | 2023-03-31 | 华中科技大学 | Elevator anti-falling device and elevator |
| CN108996357A (en) * | 2018-08-27 | 2018-12-14 | 北京凯瑞通电子技术有限公司 | A kind of elevator prevents mechanical stuck device out of control |
| CN115092789A (en) * | 2022-08-25 | 2022-09-23 | 河南起升智能科技有限公司 | Accidental movement prevention device, accidental movement prevention assembly and elevator |
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| Publication number | Publication date |
|---|---|
| CN103253577B (en) | 2015-09-09 |
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