CN104724571A - Lift car braking structure and braking method thereof - Google Patents
Lift car braking structure and braking method thereof Download PDFInfo
- Publication number
- CN104724571A CN104724571A CN201510039494.9A CN201510039494A CN104724571A CN 104724571 A CN104724571 A CN 104724571A CN 201510039494 A CN201510039494 A CN 201510039494A CN 104724571 A CN104724571 A CN 104724571A
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- China
- Prior art keywords
- band
- guide rail
- lift car
- type brake
- brake
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- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/022—Guideways; Guides with a special shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a lift car braking structure. The lift car braking structure comprises a lift car, lift guide rails and a lift controller. The lift guide rails include a guide rail and a band-type brake guide rail parallel to the guide rail. The lift car is provided with a guide rail band-type brake device corresponding to the band-type brake guide rail. The guide rail band-type brake device does brake releasing and braking actions according to output signals of the lift controller. The invention further discloses a braking method of the lift car braking structure. By means of the lift car braking structure, the lift car can be fixed to the band-type brake guide rail when the lift car stops during normal running, the lift car is prevented from moving, and shearing accidents are avoided; the lift car can be braked on the band-type brake guide rail when the lift car runs at an overspeed and becomes abnormal, the potential safety hazard that the lift car rushes to the top or squats to the bottom can be eliminated; meanwhile, the utilization frequency of lift safety tongs can be reduced, the guide rail abraded and clamped degree is reduced, and the overall service life of a lift system is prolonged.
Description
Technical field
The present invention relates to elevator technology field, be specifically related to lift car brake structure and braking method thereof.
Background technology
Elevator is a kind of instrument for doing intermittent moment in building at different horizontal surfaces along vertical guide rail, and can elevator be made safely and reliably out of service and make elevator keep halted state to be very important, this be the necessary condition that use allowed by elevator.Most elevators is all the traction elevator by rope traction, and the common stop method of traction elevator has following three kinds:
(1) main frame band-type brake, is generally arranged on elevator traction machine, acts on the axle of the traction sheave driving traction steel-cable, by the friction force stop steel rope of traction sheave and traction steel-cable, makes lift car out of service.Main frame band-type brake belongs to the normal braking method run, and mainly make car keep halted state by main frame band-type brake during the normal flat bed of elevator, abnormal condition also may be used for urgent stop.Its shortcoming is: braking force is not act directly on car, if the friction force of traction sheave and steel rope is not enough, then can cause braking failure accident, and during Elevator landing enabling, if people or goods turnover cause car weight to change, then produce the change of car ground and flooring relative position due to the distortion of steel rope, this point is especially obvious at high rise elevator.
(2) safety tongs, generally be arranged on car or counterweight frame, effective object is the guided way be arranged in hoistway, and the triggering voussoir of safety tongs is handled by velocity limiter by steel rope, when elevator overspeed or disconnected rope, velocity limiter action, clamping steel wire rope, thus pull voussoir, the action of triggering secure pincers, clamping guided way, make car or counterweight frame out of service.Safety tongs is the necessary safety device of elevator regulations of rules, even if can guarantee also can by car safety stop when traction steel-cable complete rupture for it.But safety tongs is triggered mechanically when lift car exceeds the speed limit by steel cable by velocity limiter, can not by automatically controlled triggering, can not the action when low speed, can not automatically reset after action, belong to brake equipment during abnormal running.Meanwhile, in order to ensure can by car stop, the dynamics of safety tongs clamping guided way be very large, easily causes expendable damage to guided way, affects the service life of elevator.
(3) wire holder, be generally arranged on towing machine or towing machine side, traction steel-cable passes therethrough, and is generally triggered by velocity limiter electric control circuit, and when elevator overspeed or disconnected rope, traction steel-cable clamps by wire holder, thus stop elevator.Wire holder is a kind of automatically controlled brake equipment, its action can be made steel rope clamping thus by car stop, but its action object is traction steel-cable when elevator control gear detects exception, the same with safety tongs, emergency braking apparatus when belonging to exception equally.
Above three kinds of stop methods have its application limitation, and wire holder and safety tongs belong to sentinel plant, and can not use in normal operation, wire holder neither act directly on car; And main frame band-type brake can use in normal operation, but there is certain potential safety hazard.
Summary of the invention
Therefore, the present invention is directed to the technical matters that existing traction elevator stop structure could not use or have potential safety hazard in proper motion, object is that providing a kind of can use and safe and reliable lift car brake structure in proper motion.
The technical solution adopted in the present invention is:
A kind of lift car brake structure, comprise lift car, cage guide and electric life controller, described cage guide comprises guided way, described cage guide also comprises the band-type brake guide rail paralleled with guided way, on described lift car, corresponding band-type brake guide rail is provided with guide rail band brake apparatus, and described guide rail band brake apparatus is undertaken opening a sluice gate and band-type brake action by electric life controller output signal.Guided way matches with the boots of leading being arranged on lift car, leads to lift car, the degree of freedom that restriction lift car is movable in the horizontal direction, the guide rail band brake apparatus of lift car then matches with band-type brake guide rail, for when the normal flat bed of elevator or operation exception, brake sticking brake is carried out to lift car, achieve stop to liking lift car, the risk that when avoiding Elevator landing, other medium objects of stop bring, guide rail band brake apparatus is the better solution of alternative main frame traction sheave band-type brake, it is the same with main frame traction sheave band-type brake, controlled by electric life controller, employing energising is opened, the manner of execution that dead electricity is held tightly, lift car is fixed when elevator orderly shutdown, be in operation and also can guarantee stop elevator car, improve the safety of elevator.
As the further improvement of technique scheme, the surface of band-type brake guide rail is Non-smooth surface face.Guided way is mainly used in directional tagging, guided way be arranged on leading boots and whenever all keeping in touch of lift car, need the friction force of contact surface both as far as possible reducing, to ensure the ride comfort of elevator cage operation, therefore require guided way smooth surface, also need to adopt lubricating oil to lubricate; And the effect of band-type brake guide rail carries out brake sticking brake when being mainly used for elevator cabin flat level or velocity anomaly, enough friction force are needed between band-type brake guide rail surface and guide rail band brake apparatus, the surface of band-type brake guide rail needs certain roughness, and can not lubricate.
As the further improvement of technique scheme, described guided way and band-type brake guide rail one-body molded, be wholely set track base between guided way and band-type brake guide rail, track base and guided way, band-type brake guide rail are orthogonal.Guided way and band-type brake guide rail one-body molded, ensure that the parallelism of guided way, band-type brake guide rail, elimination elevator is in operation and there is the possibility of mechanical interference between guide rail band brake apparatus and band-type brake guide rail, gap precision when also ensure that guide rail band brake apparatus is opened and between band-type brake guide rail, guided way and the interference led between boots when also preventing guide rail band-type brake simultaneously.
As the further improvement of technique scheme, be provided with the oily boss of gear or gear oil groove in the middle part of described track base, avoid the lubricating oil of guided way to flow to band-type brake guide rail along track base.
Present invention also offers the braking method of above-mentioned lift car brake structure, comprise the following steps:
Normal stopping braking step: start guide rail band brake apparatus, guide rail band brake apparatus action band-type brake is made by electric life controller output signal when lift car each run normally stops, lift car is fixed on band-type brake guide rail, until lift car runs again, electric life controller output signal makes the action of guide rail band brake apparatus open a sluice gate;
Abnormal running braking step: when electric life controller detects elevator speed mal, electric life controller output signal makes guide rail band brake apparatus action band-type brake, is fixed on by lift car on band-type brake guide rail.
The invention has the beneficial effects as follows:
Compared with prior art, lift car brake structure of the present invention can make lift car be fixed on band-type brake guide rail by car when normal operation stops, and prevents car from moving, avoids shearing accident to occur; Hypervelocity can be run again, occur that abnormal lift car stop is on band-type brake guide rail, eliminate car and to rush to summit or squat the potential safety hazard at the end; Elevator safety gear frequency of utilization can be reduced simultaneously, reduce guided way and be worn and crush degree, improve the whole service life of elevator device.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the axial schematic diagram of lift car brake structure of the present invention;
Fig. 2 is the birds-eye view of lift car brake structure of the present invention;
Fig. 3 is the cross section structure schematic diagram of cage guide.
Drawing reference numeral illustrates: 1, lift car; 2, band-type brake guide rail; 3, guided way; 4, guide rail band brake apparatus; 5, boots are led; 6, track base; 7, oily boss is kept off.
Detailed description of the invention
Be preferred embodiment provided by the invention as shown in Figure 1, Figure 2, comprise lift car 1, cage guide and electric life controller (not shown).Described cage guide is separately positioned on lift car 1 both sides, and cage guide comprises band-type brake guide rail 2 parallel to each other and guided way 3, and wherein the surface of guided way 3 is smooth side and is coated with lubricating oil, and the surface of band-type brake guide rail 2 is Non-smooth surface face.On described lift car 1, corresponding guided way 3 is provided with and leads boots 5, guided way 3 is located in the guide groove of leading boots 5, on lift car 1, corresponding band-type brake guide rail 2 is provided with guide rail band brake apparatus 4, and band-type brake guide rail 2 is located in the clip slot of guide rail band brake apparatus 4, and described guide rail band brake apparatus 4 connects electric life controller.
As shown in Figure 3, be provided with track base 6 between band-type brake guide rail 2 and guided way 3, described band-type brake guide rail 2, guided way 3 and track base 6 are one-body molded, and track base 6 and band-type brake guide rail 2, guided way 3 are orthogonal.Be provided with trapezoidal gear oil boss 7 in the middle part of track base 6, the cross section that guided way 3, band-type brake guide rail 2 and track base 6 are formed is " E " font, keeps off on oily boss 7 and is installed with row's screw thread via hole.
Lift car brake structure of the present invention is mainly used in elevator normal operation to be stopped braking when braking at present and elevator speed exception, and its concrete control process step is as follows:
1., elevator device initial power-up, lift car 1 is in halted state, under electric life controller output signal, guide rail band brake apparatus 4 band-type brake, lift car 1 is fixed on band-type brake guide rail 2, make lift car 1 be in safety stop state, the everything of guide rail band brake apparatus 4 is all carry out under electric life controller output signal, below repeats no more;
2., judge that elevator is the need of operation, if elevator needs to run, guide rail band brake apparatus 4 is opened a sluice gate, and lift car 1 can be run up and down, performs step 3.; If elevator does not need to run, guide rail band brake apparatus 4 continues to keep band-type brake, performs step 2..
3., judge that whether elevator speed is normal, if normally, guide rail band brake apparatus 4 keeps opening a sluice gate, and performs step 4.; If abnormal, guide rail band brake apparatus 4 band-type brake, holds band-type brake guide rail 2 tightly, lift car 1 is suddenly stopped, returns and perform step 2..
4., judge whether elevator runs stopping, if stop, guide rail band brake apparatus 4 band-type brake, holds band-type brake guide rail 2 tightly, is fixed on band-type brake guide rail 2 by lift car 1, returns and performs step 2.; If elevator off-duty terminates, guide rail band brake apparatus 4 keeps opening a sluice gate, and returns and performs step 3..
Can be obtained by the execution step of above-mentioned lift car brake structure, guide rail band brake apparatus 4 all action band-type brakes when lift car 1 each run normally stops, lift car 1 is fixed on band-type brake guide rail 2, until lift car 1 runs again, improve safety during lift car 1 flat bed, avoid shearing accident to occur; And when elevator speed mal, guide rail band brake apparatus 4 is action band-type brake also, make lift car 1 emergency braking, eliminate lift car 1 to rush to summit or squat the potential safety hazard at the end, elevator safety gear frequency of utilization can be reduced simultaneously, reduce guided way 3 be worn and crush degree, improve the whole service life of elevator device.
Above concrete structure and control method illustrate preferred embodiment of the present invention, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent distortion or replacement are all included in the application's claim limited range.
Claims (5)
1. a lift car brake structure, comprise lift car (1), cage guide and electric life controller, described cage guide comprises guided way (3), it is characterized in that: described cage guide also comprises the band-type brake guide rail (2) paralleled with guided way (3), the upper corresponding band-type brake guide rail (2) of described lift car (1) is provided with guide rail band brake apparatus (4), and described guide rail band brake apparatus (4) is undertaken opening a sluice gate and band-type brake action by electric life controller output signal.
2. a kind of lift car brake structure according to claim 1, is characterized in that: the surface of described band-type brake guide rail (2) is Non-smooth surface face.
3. a kind of lift car brake structure according to claim 2, it is characterized in that: described guided way (3) and band-type brake guide rail (2) one-body molded, be wholely set track base (6) between guided way (3) and band-type brake guide rail (2), track base (6) and guided way (3), band-type brake guide rail (2) are orthogonal.
4. a kind of lift car brake structure according to claim 3, is characterized in that: described track base (6) middle part is provided with the oily boss of gear (7) or keeps off oily groove.
5. according to the braking method of any one lift car brake structure of claim 1 ~ 4, it is characterized in that, comprise the following steps:
Normal stopping braking step: start guide rail band brake apparatus (4), guide rail band brake apparatus (4) action band-type brake is made by electric life controller output signal when lift car (1) each run normally stops, lift car (1) is fixed on band-type brake guide rail (2), until lift car (1) runs again, electric life controller output signal makes guide rail band brake apparatus (4) action open a sluice gate;
Abnormal running braking step: when electric life controller detects elevator speed mal, electric life controller output signal makes guide rail band brake apparatus (4) action band-type brake, is fixed on band-type brake guide rail (2) by lift car (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510039494.9A CN104724571A (en) | 2015-01-26 | 2015-01-26 | Lift car braking structure and braking method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510039494.9A CN104724571A (en) | 2015-01-26 | 2015-01-26 | Lift car braking structure and braking method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104724571A true CN104724571A (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510039494.9A Pending CN104724571A (en) | 2015-01-26 | 2015-01-26 | Lift car braking structure and braking method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104724571A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110142A (en) * | 2015-07-27 | 2015-12-02 | 苏州台菱电梯有限公司 | Safety wall-attaching elevator special for the old |
| CN110356944A (en) * | 2018-03-26 | 2019-10-22 | 上海三菱电梯有限公司 | Brake device for elevator |
| CN113353756A (en) * | 2021-05-11 | 2021-09-07 | 重庆市华创电梯部件有限公司 | Elevator overspeed protection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1087203A (en) * | 1996-08-30 | 1998-04-07 | Otis Elevator Co | Guide rail for elevator |
| JPH11209029A (en) * | 1998-01-23 | 1999-08-03 | Otis Elevator Co | Guide rail for elevator |
| CN101844721A (en) * | 2010-05-18 | 2010-09-29 | 沈阳三洋电梯有限公司 | Hydraulic car lift with four guide rails and two sets of safety tongs |
| CN102040139A (en) * | 2009-10-15 | 2011-05-04 | 河南理工大学 | Direct drive type hoist with boosting caliper brake |
| CN204528991U (en) * | 2015-01-26 | 2015-08-05 | 江门市蒙德电气股份有限公司 | A kind of lift car brake structure |
-
2015
- 2015-01-26 CN CN201510039494.9A patent/CN104724571A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1087203A (en) * | 1996-08-30 | 1998-04-07 | Otis Elevator Co | Guide rail for elevator |
| JPH11209029A (en) * | 1998-01-23 | 1999-08-03 | Otis Elevator Co | Guide rail for elevator |
| CN102040139A (en) * | 2009-10-15 | 2011-05-04 | 河南理工大学 | Direct drive type hoist with boosting caliper brake |
| CN101844721A (en) * | 2010-05-18 | 2010-09-29 | 沈阳三洋电梯有限公司 | Hydraulic car lift with four guide rails and two sets of safety tongs |
| CN204528991U (en) * | 2015-01-26 | 2015-08-05 | 江门市蒙德电气股份有限公司 | A kind of lift car brake structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110142A (en) * | 2015-07-27 | 2015-12-02 | 苏州台菱电梯有限公司 | Safety wall-attaching elevator special for the old |
| CN110356944A (en) * | 2018-03-26 | 2019-10-22 | 上海三菱电梯有限公司 | Brake device for elevator |
| CN110356944B (en) * | 2018-03-26 | 2021-08-03 | 上海三菱电梯有限公司 | Elevator brake device |
| CN113353756A (en) * | 2021-05-11 | 2021-09-07 | 重庆市华创电梯部件有限公司 | Elevator overspeed protection device |
| CN113353756B (en) * | 2021-05-11 | 2022-07-19 | 重庆市华创电梯部件有限公司 | Elevator overspeed protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150624 |