CN100540436C - Speed limiter for elevator - Google Patents
Speed limiter for elevator Download PDFInfo
- Publication number
- CN100540436C CN100540436C CNB2005800153307A CN200580015330A CN100540436C CN 100540436 C CN100540436 C CN 100540436C CN B2005800153307 A CNB2005800153307 A CN B2005800153307A CN 200580015330 A CN200580015330 A CN 200580015330A CN 100540436 C CN100540436 C CN 100540436C
- Authority
- CN
- China
- Prior art keywords
- mentioned
- switch
- friction wheel
- governor sheave
- car
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
Abstract
The invention provides a kind of speed limiter for elevator, have: the governor sheave that can be the center rotation with the sheave shaft at the pedestal upper support; And the friction wheel that can rotate coaxially with governor sheave.Governor sheave is provided with and flies pendulum, and this flies to put the centnifugal force that is produced by means of the governor sheave rotation and rotates.On governor sheave, be provided with contactless switch rotationally, contact with friction wheel when this contactless switch reaches predetermined mistake speed by the speed at car, make friction wheel to the direction rotation identical with governor sheave.Friction wheel is provided with engaging part, and the operation car stopped the switch lever with switch when this engaging part was used for speed at car and reaches predetermined mistake speed.Switch lever engages with engaging part usually the time, and this switch lever is operated when friction wheel from rotation.
Description
Technical field
The present invention relates to a kind of speed limiter for elevator, it has the governor sheave of the rotation along with moving of car.
Background technology
In existing speed limiter for elevator, for having reached predetermined mistake speed, the speed to car detects, make to fly to put the centnifugal force rotation that is produced by means of the governor sheave rotation.Governor sheave is rotated corresponding to the speed of car.The pedestal of supporting governor sheave is provided with car and stops to use switch.Be provided with in the outer end that flies to put and be used to make car to stop action pawl with switch motion.When the speed of car reached predetermined mistake speed, car stopped switch lever with switch and is moved the pawl operation, makes car stop to use switch motion thus.Like this, the power supply of the actuating device of elevator is cut off, and the brake equipment by actuating device makes car stop (with reference to patent documentation 1).
Patent documentation 1: Japanese patent gazette spy opens 2002-370879 number
But, in this existing speed limiter for elevator, the chance of action pawl by the position of switch lever governor sheave rotate a circle during in for once.Therefore, even the speed of car has reached predetermined mistake speed,, under the situation far away of the position of switch lever, before the position of action pawl arrival switch lever, need spended time, thereby can't make car stop to move immediately with switch from the action pawl.Therefore, before car stopped with switch motion, the speed of car may surpass predetermined mistake speed.
Summary of the invention
The present invention proposes in order to address the above problem, and its purpose is to provide a kind of speed limiter for elevator, and its speed that can detect car has more accurately reached predetermined mistake speed.
Speed limiter for elevator of the present invention comprises: governor sheave, and it can be rotated to support on the pedestal, and rotates corresponding to moving of car; Friction wheel, itself and governor sheave are provided with coaxially, and can be rotated to support on the pedestal; Fly pendulum, it is arranged on the governor sheave rotationally, and rotates by means of governor sheave rotates the centnifugal force that is produced; Contactless switch trip lever (triplever), it is arranged on the governor sheave rotationally, and rotates by the rotation that flies to put; Contactless switch, it is arranged on the governor sheave rotationally, and usually the time, engage with the contactless switch trip lever, when the speed of car reaches predetermined mistake speed, this contactless switch gets loose with the engaging of contactless switch trip lever and contacts with friction wheel, thus, above-mentioned contactless switch makes friction wheel to the direction rotation identical with governor sheave; Engaging part, it is arranged at friction wheel, and rotates integratedly with friction wheel; And car stops to use switch, and it has switch lever, and this switch lever engages with engaging part usually the time, and is operated by engaging part when friction wheel from rotation, and above-mentioned car stops to move by being operated of switch lever with switch.
Description of drawings
Fig. 1 is the constructional drawing of the lift appliance of expression embodiment of the present invention 1.
Fig. 2 is the front view of the velocity limiter in the presentation graphs 1.
Fig. 3 is the front view that contactless switch in the presentation graphs 2 and friction wheel rigidly connect velocity limiter after touch.
Fig. 4 is the front view that stops the velocity limiter when the switch motion in the presentation graphs 2.
The specific embodiment
With reference to the accompanying drawings preferred implementation of the present invention is described.
Embodiment 1
Fig. 1 is the constructional drawing of the lift appliance of expression embodiment of the present invention 1.In the drawings, be provided with machine room 2 on the top of hoistway 1.In machine room 2, be provided with actuating device (towing machine) 3.Actuating device 3 has the rope sheave of driving 3a.On driving rope sheave 3a, be wound with many (only illustrating 1 for simplicity in the drawings) main ropes 4.In hoistway 1, car 5 and counterweight 6 are arranged by main rope 4 suspentions.Car 5 and counterweight 6 are by means of propulsive effort lifting in hoistway 1 of actuating device 3.In addition, in hoistway 1, be provided with a pair of car guide rail 7 and a pair of counterweight guide rail (not shown).Car 5 is guiding lifting in hoistway 1 by car guide rail 7.Counterweight 6 lifting in hoistway 1 by the counterweight rail guidance.
Be equipped with on the car 5: the mobile a pair of emergency braking device 8 that stops that being used for forcibly making car 5; With with each emergency braking device 8 bonded assembly connecting rod mechanism 9.Be provided with velocity limiter 10 in machine room 2, this velocity limiter 10 makes each emergency braking device 8 action when detecting the mistake speed of car 5.In addition, velocity limiter 10 also can be arranged in the hoistway 1.
Bottom in hoistway 1 is provided with rotatable tension wheel 11.Be wound with on velocity limiter 10 and the tension wheel 11 and connecting rod mechanism 9 bonded assembly overspeed governors 12.Overspeed governor 12 circulates mobile along with the lifting of car 5.
Fig. 2 is the front view of the velocity limiter 10 in the presentation graphs 1.In the drawings, the pedestal 13 upper support speed limiter rope sheaves 15 in being fixed in machine room 2, this governor sheave 15 can be the center rotation with horizontally extending sheave shaft 14.Overspeed governor 12 is wound on the governor sheave 15.Being provided with in the side of governor sheave 15 to be that a pair of that rotate at the center flies to put 17 with pin 16.Respectively flying to put 17 interconnects by linkage component 18.
Respectively fly to put 17 centnifugal forces that produced by means of governor sheave 15 rotations and rotate.Fly to put the balance spring 42 that is provided with the opposing centnifugal force between 17 end and the governor sheave 15 at one.
It can be the engaging pawl trip lever 20 of center rotation with the axle 19 parallel with pin 16 that governor sheave 15 is provided with.The part of engaging pawl trip lever 20 and above-mentioned one fly to put 17 butts.Engaging pawl trip lever 20 flies to put 17 rotation by above-mentioned one and be the center rotation with axle 19.Axle 19 is provided with torsion spring 21, and 21 pairs of engagings of this torsion spring pawl trip lever 20 is to making this engaging pawl trip lever 20 and an above-mentioned direction application of force that flies to put 17 butts.
Having at pedestal 13 upper supports to be the ratchet 22 of center rotation with sheave shaft 14.Peripheral part at ratchet 22 is provided with a plurality of teeth.Axle is supported with engaging pawl 23 on a pin 16, and this engaging pawl 23 engages selectively with either party in engaging pawl trip lever 20 and ratchet 22.Engaging pawl 23 passes through extension spring 24 quilts to the direction application of force that engages with ratchet 22.Engaging pawl 23 leaves ratchet 22 with engaging 20 engagings of pawl trip lever usually the time, still, when engaging pawl 23 got loose with the engaging that engages pawl trip lever 20, engaging pawl 23 rotated by the elastic force of extension spring 24, engaged thereby become with ratchet 22.
It can be the contactless switch trip lever 26 of center rotation with the axle 25 parallel with pin 16 that governor sheave 15 is provided with.The part of contactless switch trip lever 26 and another fly to put 17 butts.Contactless switch trip lever 26 flies to put 17 rotation by above-mentioned another and is that rotate at the center with axle 25.Axle 25 is provided with torsion spring 27, and 27 pairs of contactless switch trip levers 26 of above-mentioned torsion spring are to making this contactless switch trip lever 26 fly to put the direction application of force of 17 butts with above-mentioned another.
Having at pedestal 13 upper supports to be the friction wheel 28 of center rotation with sheave shaft 14.Friction wheel 28 is configured in a side opposite with governor sheave 15 sides of ratchet 22 on the axis direction of sheave shaft 14.That is, on the axis direction of sheave shaft 14, between governor sheave 15 and friction wheel 28, dispose ratchet 22.In addition, the peripheral part of friction wheel 28 is made of the high friction material of abrasion test.
Be provided with at governor sheave 15 that can to sell 16 with another be the contactless switch 29 that rotate at the center.Contactless switch 29 has the contact surface 29a that is made of high friction material.Contactless switch 29 can and leave between the position and rotate at contact position, above-mentioned contact position is the peripheral part position contacting (Fig. 3) of contact surface 29a and friction wheel 28, and the above-mentioned position of leaving is the position (Fig. 2) that contactless switch 29 engages with contactless switch trip lever 26, contact surface 29a leaves friction wheel 28.
On pedestal 13, be provided with arm 36 rotationally.Pars intermedia at arm 36 is provided with boots 37 rotationally, and these boots 37 are compressed against on the overspeed governor 12.In the terminal part 36a of arm 36, be penetrated with spring shaft 38.Between end of spring shaft 38 and ratchet 22, be connected with pipe link 39.Be provided with spring bracket parts 40 in the other end of spring shaft 38.Between the terminal part 36a of arm 36 and spring bracket parts 40, be provided be used for boots 37 be pressed against on the overspeed governor 12 by pressing spring 41.
Below, action is described.Fig. 3 is the front view that contactless switch 29 and the friction wheel 28 in the presentation graphs 2 rigidly connects velocity limiter 10 after touch.In addition, Fig. 4 is the front view of car in the presentation graphs 2 velocity limiter 10 when stopping with switch 33 actions.When the rising or falling speed of car 5 reaches predetermined first when crossing speed (normally about 1.3 of command speed times), by respectively flying to put 17 rotations by means of centnifugal force, contactless switch 29 gets loose with engaging of contactless switch trip lever 26.Thus, contactless switch 29 rotates to contact position by the elastic force of extension spring 30, and as shown in Figure 3, contact surface 29a contacts with the peripheral part of friction wheel 28.Thus, as shown in Figure 4, friction wheel 28 is to the direction rotation identical with governor sheave 15, and switch lever 35 is operated by engaging part 31.Like this, car stops with switch 33 action, makes that the power supply to actuating device 3 stops, thereby the brake equipment by actuating device 3 stops the mobile of car 5.
In addition, for example the situation of breaking at main rope 4 is inferior, when even actuating device 3 stops to continue to descend but car 5 does not still stop and the speed of car reaches second when crossing speed (normally about 1.4 of command speed times), respectively fly to put 17 centnifugal forces that produced by means of governor sheave 15 rotations and further rotate, make engaging pawl 23 get loose with the engaging that engages pawl trip lever 20.Thus, the elastic force of engaging pawl 23 by extension spring 24 rotates, and with the tooth engagement of ratchet 22.Like this, ratchet 22 slightly rotates with governor sheave 15.
Afterwards, the rotation of ratchet 22 is passed to arm 36 by pipe link 39, spring shaft 38, spring bracket parts 40 and by pressing spring 41, makes arm 36 rotate to the direction near governor sheave 15.Thus, boots 37 and overspeed governor 12 butts, by pressing pressing spring 41, boots 37 are compressed against on the overspeed governor 12.Thus, overspeed governor 12 is restrained between governor sheave 15 and boots 37, makes the mobile of overspeed governor 12 be braked.When the circulation of overspeed governor 12 stops, moving by the continuation of car 5, connecting rod mechanism 9 is operated, thereby makes emergency braking device 8 actions.
In such velocity limiter 10, when car 5 reaches predetermined mistake speed, contactless switch 29 contacts with the peripheral part of friction wheel 28, make friction wheel 28 rotate, by the rotation of friction wheel 28, car stops to be operated with the switch lever 35 of switch 33, therefore, with fly to put 17 location independents with respect to switch lever 35, can when car 5 reaches predetermined mistake speed, make car stop to move immediately with switch 33.Thus, the speed that can detect car 5 has more exactly reached predetermined mistake speed.So, can prevent that car from stopping to postpone with the action of switch 33, can more immediately stop power supply to actuating device 3, and the action of more immediately carrying out the brake equipment of actuating device 3.
In addition, the engaging part 31 that is arranged at friction wheel 28 is provided with recess 32, and switch lever 35 is by being inserted in the recess 32, and upwards engages with engaging part 31 in the week of friction wheel 28, therefore, can with the irrelevant to rotation direction ground operating switch bar 35 of friction wheel 28.Thus, be not only under the situation that car 5 descends, even under the situation that car 5 rises, the speed that also can detect car 5 has more exactly reached predetermined mistake speed.
Claims (2)
1. a speed limiter for elevator is characterized in that, above-mentioned speed limiter for elevator comprises:
Governor sheave, it can be rotated to support on the pedestal, and rotates corresponding to moving of car;
Friction wheel, itself and above-mentioned governor sheave are provided with coaxially, and can be rotated to support on the said base;
Fly pendulum, it is arranged on the above-mentioned governor sheave rotationally, and rotates by means of above-mentioned governor sheave rotates the centnifugal force that is produced;
The contactless switch trip lever, it is arranged on the above-mentioned governor sheave rotationally, and rotates by the above-mentioned rotation that flies to put;
Contactless switch, it is arranged on the above-mentioned governor sheave rotationally, and usually the time, engage with above-mentioned contactless switch trip lever, when the speed of above-mentioned car reaches predetermined mistake speed, this contactless switch gets loose with the engaging of above-mentioned contactless switch trip lever and contacts with above-mentioned friction wheel, thus, above-mentioned contactless switch makes above-mentioned friction wheel to the direction rotation identical with above-mentioned governor sheave;
Engaging part, it is arranged at above-mentioned friction wheel, and rotates integratedly with above-mentioned friction wheel; And
Car stops to use switch, and it has switch lever, and this switch lever engages with above-mentioned engaging part usually the time, and is operated by above-mentioned engaging part when above-mentioned friction wheel from rotation, and above-mentioned car stops to move by being operated of above-mentioned switch lever with switch.
2. speed limiter for elevator according to claim 1 is characterized in that,
Outboard end in above-mentioned engaging part is provided with recess;
Above-mentioned switch lever is by being inserted in the above-mentioned recess and upwards engage with above-mentioned engaging part in the week of above-mentioned friction wheel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2005/003003 WO2006090453A1 (en) | 2005-02-24 | 2005-02-24 | Governor for elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1953927A CN1953927A (en) | 2007-04-25 |
| CN100540436C true CN100540436C (en) | 2009-09-16 |
Family
ID=36927104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800153307A Expired - Fee Related CN100540436C (en) | 2005-02-24 | 2005-02-24 | Speed limiter for elevator |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1852383A4 (en) |
| JP (1) | JP4745332B2 (en) |
| CN (1) | CN100540436C (en) |
| WO (1) | WO2006090453A1 (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102471012B (en) | 2009-07-20 | 2015-10-07 | 奥的斯电梯公司 | Elevator governor system |
| EP2319793B1 (en) * | 2009-11-10 | 2012-01-25 | ThyssenKrupp Elevator AG | Actuator for a speed restrictor of a lift system |
| EP2617672B1 (en) * | 2010-09-17 | 2018-11-28 | Mitsubishi Electric Corporation | Speed governor for elevator |
| CN105947828A (en) * | 2016-06-29 | 2016-09-21 | 西继迅达（许昌）电梯有限公司 | Novel one-way speed limier with speed monitoring function |
| CN106115407A (en) * | 2016-06-29 | 2016-11-16 | 西继迅达（许昌）电梯有限公司 | The novel unidirectional Self-resetting limiter of speed that there is speed monitoring, can automatically trigger |
| CN107311004A (en) * | 2016-06-29 | 2017-11-03 | 西继迅达（许昌）电梯有限公司 | The new anti-slip unidirectional limiter of speed that automatically resets |
| CN107311005A (en) * | 2016-06-29 | 2017-11-03 | 西继迅达（许昌）电梯有限公司 | New unidirectional Self-resetting limiter of speed |
| CN105923488A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Novel unidirectional automatic-reset speed governor capable of being triggered automatically |
| CN105947830A (en) * | 2016-06-29 | 2016-09-21 | 西继迅达（许昌）电梯有限公司 | Novel one-way automatic reset anti-slip speed limiter with speed monitor function |
| CN105936457A (en) * | 2016-06-29 | 2016-09-14 | 西继迅达（许昌）电梯有限公司 | Novel car-sliding-preventing one-way self-reset speed-limiting device with speed monitoring function |
| CN105883528A (en) * | 2016-06-29 | 2016-08-24 | 西继迅达（许昌）电梯有限公司 | Novel unidirectional car-sliding-proof self-resetting speed limiting device with speed monitoring |
| CN105947827A (en) * | 2016-06-29 | 2016-09-21 | 西继迅达（许昌）电梯有限公司 | Novel one-way speed limiter |
| CN105923486A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Novel unidirectional automatic-reset speed governor capable of monitoring speed |
| CN105923494A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Novel unidirectional anti-sliding speed governor capable of monitoring speed |
| CN105923496A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Novel unidirectional automatic anti-sliding speed governor capable of monitoring speed |
| CN105923487A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Novel automatic anti-sliding unidirectional automatic-reset speed governor |
| CN105947829A (en) * | 2016-06-29 | 2016-09-21 | 西继迅达（许昌）电梯有限公司 | Novel one-way automatic reset speed limiter with automatic car sliding preventing function |
| CN105947826A (en) * | 2016-06-29 | 2016-09-21 | 西继迅达（许昌）电梯有限公司 | Novel one-way automatic reset speed limiter |
| CN106115408A (en) * | 2016-06-29 | 2016-11-16 | 西继迅达（许昌）电梯有限公司 | Novel anti-running unidirectional Self-resetting limiter of speed |
| CN105923489A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Novel automatic anti-sliding unidirectional speed governor |
| CN110395641B (en) * | 2018-04-25 | 2021-12-14 | 奥的斯电梯公司 | Speed limiter assembly and elevator system |
| CN112141849B (en) * | 2019-06-27 | 2023-07-04 | 奥的斯电梯公司 | Speed limiter assembly for elevator system, elevator safety system and elevator system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH480258A (en) | 1967-10-04 | 1969-10-31 | Aufzuege Ag Schaffhausen | Speed limiter for elevators |
| JPS6064963U (en) * | 1983-10-13 | 1985-05-08 | 三成研機株式会社 | Safety device for lifting objects |
| CN1094463C (en) * | 2000-04-14 | 2002-11-20 | 中国建筑科学研究院建筑机械化研究分院 | Bidirectional speed limiter for elevator |
| JP3929724B2 (en) * | 2001-06-12 | 2007-06-13 | 三菱電機株式会社 | elevator |
-
2005
- 2005-02-24 CN CNB2005800153307A patent/CN100540436C/en not_active Expired - Fee Related
- 2005-02-24 WO PCT/JP2005/003003 patent/WO2006090453A1/en active Application Filing
- 2005-02-24 JP JP2007504587A patent/JP4745332B2/en not_active Expired - Fee Related
- 2005-02-24 EP EP05719453A patent/EP1852383A4/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006090453A1 (en) | 2006-08-31 |
| EP1852383A1 (en) | 2007-11-07 |
| JPWO2006090453A1 (en) | 2008-07-17 |
| JP4745332B2 (en) | 2011-08-10 |
| CN1953927A (en) | 2007-04-25 |
| EP1852383A4 (en) | 2012-11-14 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090916 Termination date: 20130224 |