CN103738808A - Speed governor for triggering elevator safety actuating mechanism or device - Google Patents
Speed governor for triggering elevator safety actuating mechanism or device Download PDFInfo
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- CN103738808A CN103738808A CN201410010117.8A CN201410010117A CN103738808A CN 103738808 A CN103738808 A CN 103738808A CN 201410010117 A CN201410010117 A CN 201410010117A CN 103738808 A CN103738808 A CN 103738808A
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- face cam
- triggering
- side plate
- elevator safety
- velocity limiter
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Abstract
The invention discloses a speed governor for triggering an elevator safety actuating mechanism or device. The speed governor is characterized in that a set of brake device is added on the original structure. When an elevator detects conditions that a door lock is unlocked or conditions requiring electromagnet movement, a triggering electromagnet of the speed governor is disconnected with power, a cam plate is meshed with a brake disc, and the speed governor is in a state of waiting to be triggered. When lift car movement amount reaches the allowable maximum movement value, a brake of the speed governor starts working, so that the elevator safety actuating mechanism or device is driven to conduct elevator protection. The speed governor has the advantage that when the elevator gives the speed governor an electric signal and the speed governor detects that the elevator displacement reaches the set mechanical displacement, the electric signal or mechanical signal is output. The cost of the speed governor is slightly increased while protection is achieved.
Description
Technical field
The present invention relates to the device in a kind of elevator safety field, be specifically related to a kind of for triggering the velocity limiter of elevator safety actuating unit or device.
Background technology
Velocity limiter definition: in GB/T7024-1997 < < elevator, escalator, moving sidewalk term > >, 4.67 are: when the running velocity of elevator exceedes rated speed of lift certain value, the safety device that its action can cause safety tongs to work.From definition, can find out, velocity limiter is the one of elevator overspeed protecting device, and effect is while elevator overspeed being detected, gives safety and firing mechanism signal with protection elevator.
Current existing velocity limiter is generally mounted between lift facility.Existing velocity limiter generally adopts centrifugal block for clutch use principle, as shown in Figure 1, the car 3 of being located in guide rail 4 drives governor sheave 7 to rotate by speed limiter wire rope 2, and speed limiter wire rope 2 is fixed on car 3 by safety tongs 1, and governor sheave 7 is fixed on velocity limiter 6; Car 3 tops are connected with the traction steel-cable 5 by traction sheave 8.Governor sheave 7 is provided with centrifugal device, when governor sheave 7 rotates, under the effect of centnifugal force, the deformation of elastic element of centrifugal device produces a displacement, when reaching the first displacement of elastic element setting, the mechanism on centrifugal device triggers electric switch, gives electric signal of elevator; If the running velocity of car 3 continues to rise, drive the rotating speed of rope sheave 7 to increase, under the effect of centnifugal force, the elastic element of centrifugal device continues distortion, when reaching second displacement of elastic element setting of centrifugal device, and the mechanical locking mechanism action on centrifugal device, rope sheave 7 is stopped operating, now speed limiter wire rope 2 rubs on governor sheave 7, produces friction force, provides mechanical signal.
In Fig. 1, when traction steel-cable 5 ruptures or when other reasons causes lift car 3 to exceed the speed limit, the electric switch of velocity limiter 6 first moves, disconnect safety return circuit, make traction sheave 8 stop motions, if lift car 3 does not stop, running velocity continues to improve the responsiveness setting value that reaches velocity limiter 6, and the mechanical action device of velocity limiter 6 triggers, velocity limiter 6 is by stopping rope sheave 7, limit speed for braking condition device steel rope 2, triggers safety tongs 1 and moves, and lift car 3 is stopped.
Existing velocity limiter can only exceed command speed action, can not move lower than under command speed, can not be in the velocity limiter lower action that turns an angle.Limited the application of velocity limiter.
Summary of the invention
To be solved by this invention be velocity limiter when thering is overspeed protection, possess lower than command speed action, or in the turn an angle function of lower action of velocity limiter.
In order to address the above problem, the invention provides a kind of for triggering the velocity limiter of elevator safety actuating unit or device, it is characterized in that, comprise face cam, face cam is fixed on U-shaped side plate inner side by orienting sleeve, and the position of corresponding face cam is provided with the electromagnetic block moving up at orienting sleeve axle for controlling face cam outside side plate; In side plate, opposite side is provided with rope sheave permanent seat, and rope sheave permanent seat and face cam are coaxially arranged, and are provided with brake disc between rope sheave permanent seat and face cam; The outside cover speed limiter rope sheave of rope sheave permanent seat and brake disc.
Preferably, described face cam is provided with pin/brake hole, and brake disc is provided with the brake hole/pin matching with pin/brake hole; The quantity of brake hole is the integral multiple of pin quantity.
Preferably, described face cam is provided with at least 2 double wedges, and face cam periphery is fixed with two-way ratchet, and two-way ratchet is fixed on side plate inner side by ratchet bolt of rear end plate; Between two-way ratchet and side plate, be provided with ratchet spring, ratchet spring is placed on ratchet bolt of rear end plate outside.
Preferably, described face cam is provided with at least one bar hole, is fixed with position-limitting pin in bar hole, and position-limitting pin is fixed on side plate inner side.
Preferably, be provided with face cam retracing spring in described side plate, side plate outside is provided with the switch matching with face cam, and the electric signal mouth of switch is connected with elevator.
Preferably, in described electromagnetic block, be provided with electromagnetic core, electromagnetic core one end is located in electromagnetic block, the other end is connected by circular groove structure is mutually nested with face cam through side plate, electromagnetic core end is also provided with spacing convex shoulder, on electromagnetic core, cover has Compress Spring, and Compress Spring is between spacing convex shoulder and electromagnetic block.
Preferably, output pin on described face cam.
Preferably, be provided with two power supplys in the external control loop of described electromagnet, one of them is external power supply, and this external power supply is alternating current or direct current (DC), and another is charge inside power supply, and this charge inside power supply is rechargeable battery or charging capacitor; External control loop is provided with triggering circuit switching.
Preferably, described rope sheave permanent seat, rope sheave and the brake disc structure that is formed in one.
Preferably, described side plate is provided with spiral compression spring, and when not adhesive of electromagnet, face cam moves and engages to brake disc direction under the effect of spiral compression spring.
When face cam turns over after certain angle, by switch motion, output electric signal is to elevator.On output pin, also can leave the interface of stay rope.So that cam rotate time, export a displacement signal.On face cam, the angle of 2 double wedge settings affects the angle that velocity limiter rotates, and reaches the effect of limiting displacement by limited angular.The present invention can move lower than under command speed, or moves when velocity limiter turns over certain angle.
Velocity limiter provided by the invention increases a set of brake equipment on original structure; when detecting that door lock disconnects or other situations about needing protection; the triggering electromagnet power-off of velocity limiter; face cam and brake disc are in engagement; make velocity limiter in state to be triggered, when car moves, while reaching the maximum movement value of permission; velocity limiter drg is started working, thereby drive safety tongs or wire holder or rail clamping device or other actuating units or device carry out elevator brake.Advantage of the present invention is that velocity limiter can be lower than command speed action, also can be in a displacement of setting action and reliability high, cost is low.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing elevator governor protection system;
Fig. 2 is the overall pattern of the velocity limiter of triggering elevator safety actuating unit provided by the invention or device;
Fig. 3 is the schematic diagram that brake equipment engages;
Fig. 4 is the schematic diagram that brake equipment separates;
Fig. 5 is the lateral plan of Fig. 4;
Fig. 6 is the partial schematic diagram of electromagnet and cam;
Fig. 7 is the schematic diagram in electromagnet external control loop.
The specific embodiment
For the present invention is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
Embodiment
As shown in Fig. 2-7, for provided by the invention a kind of for triggering the velocity limiter of elevator safety actuating unit or device, comprise face cam 13, face cam 13 is fixed on U-shaped side plate 9 inner sides by orienting sleeve 15, and the position of the corresponding face cam 13 in side plate 9 outsides is provided with the electromagnet 14 moving up at orienting sleeve 15 axles for controlling face cam 13; The interior opposite side of side plate 9 is provided with rope sheave permanent seat 23, and rope sheave permanent seat 23 is coaxially arranged with face cam 13, and is provided with brake disc 12 between rope sheave permanent seat 23 and face cam 13; Rope sheave permanent seat 23 overlaps speed limiter rope sheave 7 with the outside of brake disc 12.Face cam 13 is provided with pin 20, and brake disc 12 is provided with the brake hole 21 matching with pin 20; The quantity of brake hole 21 is the integral multiple of pin 20 quantity.Face cam 13 is provided with at least 2 double wedges 26, is fixed with two-way ratchet 11 on double wedge 26, and two-way ratchet 11 is fixed on side plate 9 inner sides by ratchet bolt of rear end plate 10; Between two-way ratchet 11 and side plate 9, be provided with ratchet spring 24, ratchet spring 24 is placed on ratchet bolt of rear end plate 10 outsides.In side plate 9, be provided with face cam retracing spring 25, side plate 9 outsides are provided with the switch 16 matching with face cam 13.When face cam 13 turns over after certain angle, switch 16 to be moved, output electric signal is to elevator.Switch 16 is arranged on side plate 9.Energising and power-off by electromagnet 14 can make face cam move axially on orienting sleeve.In electromagnet 14, be provided with electromagnetic core 19, electromagnetic core 19 one end are located in electromagnet 14, the other end is connected by cannelure structure is mutually nested with face cam 13 through side plate 9, this end is also provided with spacing convex shoulder, on electromagnetic core 19, cover has a Compress Spring 18, Compress Spring 18 through side plate 9 the spacing convex shoulder and electromagnet 14 of electromagnetic core 19.Output pin 22 on face cam 13.When face cam 13 turns over after certain angle, switch 16 to be moved, output electric signal is to elevator.On output pin 22, also can leave the interface of stay rope.So that cam rotate time, export a displacement signal.The angle that on face cam 13,2 double wedges 26 arrange is respectively α 1 and α 2, and this angle affects the angle that velocity limiter rotates, and reaches the effect of limiting displacement by limited angular.In the external control loop of electromagnet 14, be provided with two power supplys, one of them is external power supply, and this external power supply is alternating current or direct current (DC), and another is charge inside power supply, and this charge inside power supply is rechargeable battery or charging capacitor; External control loop is provided with triggers circuit switching 29.
In Fig. 2, R is the diameter of rope sheave 7, in the situation that diameter is certain, by the α 1 on face cam 13 and α 2 angles, according to formula: after displacement=π R* α/360 easily calculate rope sheave 7 and turn an angle, the displacement of permission.In formula, π is circular constant, and α is α 1 or α 2.
Switch re-packs and 17 is fixed on face cam 13, when face cam 13 turns over after an angle, switch 16 is triggered.
Its principle of work is:
When elevator door lock loop, connect or other is thought and needs electromagnet when energising, electromagnet 14 is switched on, and face cam 13 is away from brake disc 12 under the drive of electromagnet core 19, and now the pin 20 on face cam 13 is deviate from from the pin-and-hole 21 of brake disc 12.Lift car 3 drives governor sheave 7 to rotate by speed limiter wire rope 2, velocity limiter 6 normal operations.
When elevator door lock loop disconnects or other is thought while needing electromagnet power-off, electromagnet 14 power-off, electromagnet core 19 under the effect of spring 18 to the direction motion away from electromagnet 14, thereby drive face cam 13 to brake disc 12 directions motions.When lift car 3 causes car 3 to be shifted due to the turnover of personnel or Cargo Lift, car 3 drives governor sheave 7 to rotate by speed limiter wire rope 2, when turning to a low-angle, pin 20 on face cam 13 enters in the brake hole 21 of brake disc 12, when car 3 continues to move, rope sheave 7 drives face cam 13 to be rotated further, when reaching a displacement of permission, the output pin 22 being arranged on face cam 13 moves switch 16, give electric signal of elevator, if when car 3 continues to move, double wedge 26 on face cam 13 is spacing by two-way ratchet 11, because two-way ratchet 11 is fixed on above side plate 9, so face cam 13 stops operating, face cam 13 stops operating governor sheave 7 by brake disc 12, thereby provide a mechanical signal to other actuating unit of elevator or device by the friction force of speed limiter wire rope 2 on rope sheave 7.
If disconnected at loop of the door lock, when car 3 moves or the distance of accidental movement is less than the operating distance of governor switch 16, when loop of the door lock is connected, face cam 13 is thrown off with brake disc 12 under the drive of electromagnet 14, and face cam 13 goes to normal position at the drive backspin of retracing spring 25.
The external circuits principle of electromagnet 14 is as follows: when triggering circuit switching 29 is connected, electromagnet 14 is switched on, and velocity limiter face cam 13 is thrown off with brake disc 12; When triggering circuit switching 29 disconnects, electromagnet 14 dead electricity, velocity limiter face cam 13 engages with brake disc 12; When elevator operation has a power failure suddenly, external power supply 28 dead electricity, electromagnet 14 maintains attracting state under the effect of additional supply 27, and elevator is emergent stopping under the effect of traction machine brake.
On the basis of original overspeed protection; permission is moved lower than rated speed of lift, also can under the displacement of a setting, move, and the least displacement that this velocity limiter detects can be exported electric or mechanical signal for ± 30mm; detectable maximum displacement is π R, to export electric or mechanical signal.Middle displacement can arrange according to formula π * R* α/360.Wherein π is circular constant, and R is the diameter of governor sheave, and α is the angle of face cam 13 upper raised teeths 26.
The dish that face cam 13 is hollow, is arranged on orienting sleeve 15, is provided with the output pin 22 of transferring power on face cam 13, and the quantity of brake hole 21 is integral multiples of pin 20 quantity; On face cam 13, be provided with peripheral groove; At least two double wedges 26 are set on face cam 13 circumference; On face cam 13, be provided with the contact of stationary cam dish retracing spring 25; On face cam 13, can be provided for exporting the device of mechanical signal.
The effect of electromagnet 14 is face cam 13 to be engaged or separate with brake disc 12, and the quantity of electromagnet 14 can be 1, can be also multiple, can switch on for a long time, triggers circuit switching 29 and is located in the tap of electromagnet 14 coils; Electromagnet 14 also useable electric moter replaces, and motor changes into straight-line motion by helix line by rotatablely moving of motor.
Claims (10)
1. one kind for triggering the velocity limiter of elevator safety actuating unit or device, it is characterized in that, comprise face cam (13), face cam (13) is fixed on U-shaped side plate (9) inner side by orienting sleeve (15), and the position of side plate (9) the corresponding face cam in outside (13) is provided with the electromagnetic block (14) moving up at orienting sleeve (15) axle for controlling face cam (13); The interior opposite side of side plate (9) is provided with rope sheave permanent seat (23), rope sheave permanent seat (23) is coaxially arranged with face cam (13), and is provided with brake disc (12) between rope sheave permanent seat (23) and face cam (13); Rope sheave permanent seat (23) overlaps speed limiter rope sheave (7) with the outside of brake disc (12).
2. as claimed in claim 1 for triggering the velocity limiter of elevator safety actuating unit or device, it is characterized in that, described face cam (13) is provided with pin (20)/brake hole (21), and brake disc (12) is provided with brake hole (the 21)/pin (20) matching with pin (20)/brake hole (21); The quantity of brake hole (21) is the integral multiple of pin (20) quantity.
3. as claimed in claim 1 for triggering the velocity limiter of elevator safety actuating unit or device, it is characterized in that, described face cam (13) is provided with at least 2 double wedges (26), face cam (13) periphery is fixed with two-way ratchet (11), and two-way ratchet (11) is fixed on side plate (9) inner side by ratchet bolt of rear end plate (10); Between two-way ratchet (11) and side plate (9), be provided with ratchet spring (24), ratchet spring (24) is placed on ratchet bolt of rear end plate (10) outside.
4. as claimed in claim 1 for triggering the velocity limiter of elevator safety actuating unit or device, it is characterized in that, described face cam (13) is provided with at least one bar hole, is fixed with position-limitting pin in bar hole, and position-limitting pin is fixed on side plate (9) inner side.
5. as claimed in claim 1 for triggering the velocity limiter of elevator safety actuating unit or device, it is characterized in that, in described side plate (9), be provided with face cam retracing spring (25), side plate (9) outside is provided with the switch (16) matching with face cam (13), and the electric signal mouth of switch (16) is connected with elevator.
6. as claimed in claim 1 for triggering the velocity limiter of elevator safety actuating unit or device, it is characterized in that, in described electromagnetic block (14), be provided with electromagnetic core (19), electromagnetic core (19) one end is located in electromagnetic block (14), the other end is connected by circular groove structure is mutually nested with face cam (13) through side plate (9), electromagnetic core (19) end is also provided with spacing convex shoulder, the upper cover of electromagnetic core (19) has Compress Spring (18), Compress Spring (18) is positioned between spacing convex shoulder and electromagnetic block (14).
7. as claimed in claim 1ly for triggering the velocity limiter of elevator safety actuating unit or device, it is characterized in that the upper output pin (22) of described face cam (13).
8. as claimed in claim 1 for triggering the velocity limiter of elevator safety actuating unit or device, it is characterized in that, in the external control loop of described electromagnet (14), be provided with two power supplys, one of them is external power supply, this external power supply is alternating current or direct current (DC), another is charge inside power supply, and this charge inside power supply is rechargeable battery or charging capacitor; External control loop is provided with triggers circuit switching (29).
9. as claimed in claim 1ly for triggering the velocity limiter of elevator safety actuating unit or device, it is characterized in that described rope sheave permanent seat (23), rope sheave (7) and brake disc (12) structure that is formed in one.
10. as claimed in claim 1 for triggering the velocity limiter of elevator safety actuating unit or device, it is characterized in that, described side plate (9) is provided with spiral compression spring, when not adhesive of electromagnet (14), face cam (13) moves and engages to brake disc (12) direction under the effect of spiral compression spring.
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| CN201410010117.8A CN103738808B (en) | 2014-01-09 | 2014-01-09 | A kind of velocity limiter triggering elevator safety actuating unit or device |
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| CN201410010117.8A CN103738808B (en) | 2014-01-09 | 2014-01-09 | A kind of velocity limiter triggering elevator safety actuating unit or device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104118784A (en) * | 2014-06-09 | 2014-10-29 | 宁波欧菱电梯配件有限公司 | Leveling anti-slip method and device of lift with car |
| CN104401836A (en) * | 2014-12-12 | 2015-03-11 | 上海乐天电梯部件有限公司 | Speed limiter for triggering elevator safe execution mechanism or device |
| CN105129564A (en) * | 2015-08-10 | 2015-12-09 | 江南大学 | Electronic type bi-directional elevator speed governor |
| CN106348122A (en) * | 2016-11-17 | 2017-01-25 | 佛山市南海区永通力电梯配件厂（普通合伙） | Safety protection device to prevent accidental movement of elevators |
| CN107000961A (en) * | 2014-11-24 | 2017-08-01 | 奥的斯电梯公司 | Electormagnetic braking sytem |
| CN107186907A (en) * | 2017-07-12 | 2017-09-22 | 北京化工大学 | A kind of banbury of efficient mixing plasticizing |
| CN107324172A (en) * | 2016-04-28 | 2017-11-07 | 刘德民 | A kind of speed limit device wheel |
| CN111731978A (en) * | 2020-07-01 | 2020-10-02 | 浙江科技学院 | Novel speed limiter with uniform loading and vibration reduction protection functions and working method thereof |
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| CN202156854U (en) * | 2011-05-18 | 2012-03-07 | 李建忠 | Bidirectional speed limiter of elevator |
| CN203794390U (en) * | 2014-01-09 | 2014-08-27 | 上海乐天电梯部件有限公司 | Speed governor for triggering elevator safety executing mechanism or device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104118784B (en) * | 2014-06-09 | 2016-08-24 | 宁波欧菱电梯配件有限公司 | A kind of flat bed anti-slip dynamic method and device of elevator |
| CN104118784A (en) * | 2014-06-09 | 2014-10-29 | 宁波欧菱电梯配件有限公司 | Leveling anti-slip method and device of lift with car |
| CN107000961A (en) * | 2014-11-24 | 2017-08-01 | 奥的斯电梯公司 | Electormagnetic braking sytem |
| US10745239B2 (en) | 2014-11-24 | 2020-08-18 | Otis Elevator Company | Electromagnetic brake system for an elevator with variable rate of engagement |
| US11897725B2 (en) | 2014-11-24 | 2024-02-13 | Otis Elevator Company | Adjustment of drop rate of elevator car with electromagnetic brake system |
| CN107000961B (en) * | 2014-11-24 | 2021-05-07 | 奥的斯电梯公司 | Electromagnetic braking system |
| CN104401836A (en) * | 2014-12-12 | 2015-03-11 | 上海乐天电梯部件有限公司 | Speed limiter for triggering elevator safe execution mechanism or device |
| CN105129564A (en) * | 2015-08-10 | 2015-12-09 | 江南大学 | Electronic type bi-directional elevator speed governor |
| CN107324172B (en) * | 2016-04-28 | 2023-06-06 | 刘德民 | Speed limiter wheel |
| CN107324172A (en) * | 2016-04-28 | 2017-11-07 | 刘德民 | A kind of speed limit device wheel |
| CN106348122A (en) * | 2016-11-17 | 2017-01-25 | 佛山市南海区永通力电梯配件厂（普通合伙） | Safety protection device to prevent accidental movement of elevators |
| CN107186907A (en) * | 2017-07-12 | 2017-09-22 | 北京化工大学 | A kind of banbury of efficient mixing plasticizing |
| CN111731978B (en) * | 2020-07-01 | 2022-01-28 | 浙江科技学院 | Novel speed limiter with uniform loading and vibration reduction protection functions and working method thereof |
| CN111731978A (en) * | 2020-07-01 | 2020-10-02 | 浙江科技学院 | Novel speed limiter with uniform loading and vibration reduction protection functions and working method thereof |
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Effective date of registration: 20180710 Address after: 201705 room 24, 2 story H, 1 Fengxing road 1588, Huaxin Town, Qingpu District, Shanghai, China. Patentee after: Shanghai Lotte co creation Mechatronics Co., Ltd. Address before: 201615 Lian Fu Road No. 389, Jiuting Town, Songjiang District, Shanghai Patentee before: Shanghai Liftech Elevator Accessories Co.,Ltd. |
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Effective date of registration: 20200723 Address after: Room 1206-2, 1817 Haigang Avenue, Xitangqiao Street (Haiyan Economic Development Zone), Haiyan County, Jiaxing City, Zhejiang Province Patentee after: Lotte elevator parts (Zhejiang) Co.,Ltd. Address before: 201705 room 24, 2 story H, 1 Fengxing road 1588, Huaxin Town, Qingpu District, Shanghai, China. Patentee before: Shanghai Lotte co creation Mechatronics Co.,Ltd. |
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Effective date of registration: 20210621 Address after: 201705 Building 8, 5333 Beiqing Road, Qingpu District, Shanghai Patentee after: SHANGHAI LIFTECH ELEVATOR ACCESSORIES Co.,Ltd. Address before: Room 1206-2, 1817 Haigang Avenue, Xitangqiao Street (Haiyan Economic Development Zone), Haiyan County, Jiaxing City, Zhejiang Province, 314300 Patentee before: Lotte elevator parts (Zhejiang) Co.,Ltd. |
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