CN2517716Y - Wide area elevator governor - Google Patents
Wide area elevator governor Download PDFInfo
- Publication number
- CN2517716Y CN2517716Y CN 01274865 CN01274865U CN2517716Y CN 2517716 Y CN2517716 Y CN 2517716Y CN 01274865 CN01274865 CN 01274865 CN 01274865 U CN01274865 U CN 01274865U CN 2517716 Y CN2517716 Y CN 2517716Y
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- centrifugal
- centrifugal mechanism
- rope sheave
- wide area
- wheel
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Abstract
The utility model relates to a wide area elevator speed limiter. A bearing seat and a big friction gear are respectively fixed on the inner side of a supporting frame, a rolling bearing is connected with a center axle, a rope pulley is connected with the center axle with keys, a micro switch is triggered with a centrifugal mechanism to make the power off, and a friction block and the big friction gear are triggered to contact with a brake rope pulley, the rope pulley and the centrifugal mechanism are equipped in the coaxial and separating way, the centrifugal mechanism is equipped on a geneva wheel without a wheel flange, the rope pulley and the geneva wheel are fixed on the center axle, the centrifugal mechanism is a parallelogram mechanism formed by hinging two centrifugal fling blocks on a diagonal line, fling block plates, and connecting rods, the axle of the fling block plate is connected to one side of the geneva wheel, the friction block is eccentrically hinged on the other side of the geneva wheel, a restoring torsion spring is suited on the jointed axle of the friction block, and the restoring torsion spring is connected with the connecting rod of the centrifugal mechanism through an interlock mechanism. The centrifugal mechanism and the rope pulley are dividually equipped, the operation is simple, the required appropriate centrifugal force can be got through adjusting the diameter ratio of the rope pulley and the centrifugal mechanism, and thus the speed limiter with the same structure can be applied to the elevator with different speeds under the precondition that the stable and reliable action is ensured.
Description
The utility model relates to a kind of elevator governor.
Domestic elevator comprises various ways such as elevator, Cargo Lift, service stairs, and various elevators have different command speves, and differ greatly.Common velocity limiter is most to be the middle speed elevator velocity limiter, since structural constraint, the speed range that the model velocity limiter can only be adapted to fix.And for low speed or express elevator, common velocity limiter is used less owing to reason such as responsiveness instability or volume be bigger.Generally speaking, the slower elevators centrifugal governor also just keeps general-duty velocity limiter structure constant, strengthen centrifugal physique amount separately, because the restriction of rope sheave structure, be difficult to be added to required quality, also be difficult to produce the centnifugal force that enough is suitable for, governor tripping speed just can not guarantee reliable and stable, makes it have fatal shortcoming.Even and the velocity limiter space allows, depend merely on the increase quality and obtain required centnifugal force, cause the centrifugal block for clutch use volume too huge, can make system stressed not good.The express elevator centrifugal governor, because centrifugal mechanism is contained on the rope sheave, the restriction of structure makes rope sheave and centrifugal mechanism diameter ratio be difficult to strengthen a lot, produces big application force during action, system is stressed big, and makes the velocity limiter oad bigger, is not easy to installation.Existing a kind of scantling of structure velocity limiter of elevator governor can not be suitable for a lot of speed, must do whole the change when exceeding Applicable scope, not only wastes resource but also brings unnecessary trouble to production and management.
Be applicable to any command speed elevator and move reliable and stable wide area elevator governor after the purpose of this invention is to provide a kind of simple adjustment.
The object of the present invention is achieved like this: the bearing seat of wide area elevator governor and big friction wheel are separately fixed at the inboard of support, be connected with center shaft by antifriction-bearing box, rope sheave is connected with key with center shaft, trigger the micro-switch outage by centrifugal mechanism, and the triggering friction shoe contacts the braking rope sheave with big friction wheel, it is characterized in that: rope sheave and centrifugal mechanism coaxial separated are installed, centrifugal mechanism is installed on rimless cross wheel, rope sheave and cross wheel are fixed on the center shaft, centrifugal mechanism is by two centrifugal block for clutch use on the diagonal line, get rid of the piece plate, the parallel-crank mechanism that rod hinge connection is formed, be hinged on the side that cross is taken turns with getting rid of piece plate axle, friction shoe off-centre is hinged on the another side of cross wheel, be with the recovery torsion spring on the friction shoe jointed shaft, and link to each other with the connecting rod of centrifugal mechanism by interlinked mechanism.
Above-mentioned interlinked mechanism is that the shift fork on being passed cross wheel and be fixed on connecting rod by the straight pin on the friction shoe contacts.
Above-mentioned governor rope can be done circumference around horizontal middle spindle by the grooving on the rope sheave and rotate in vertical guide;
Miscellaneous part no longer is installed on the above-mentioned rope sheave, and the diameter of adjusting rope sheave easily under various speed makes centrifugal mechanism produce the centnifugal force of appropriateness.
Above-mentioned cross wheel is gone up two opposite friction shoes of installation direction simultaneously, bidirectional-movement when velocity limiter can be realized the upper and lower operation of elevator.
Above-mentioned centrifugal mechanism re-packs by centering block and circle and contacts with micro-switch.
Principle of work of the present invention: when elevator cage operation speed during more than or equal to specified speed, can start the device of safety tongs system, wherein under a certain overspeed situation before safety tongs does not move, electric apparatus action on the velocity limiter and cut-out elevator traction machine working current make its band-type brake, if elevator still continues to quicken operation, velocity limiter is with mechanical action and limit speed for braking condition device rope, safety tongs on the car lifts the power that the lifts rotation that arm relies on governor rope, make the safety tongs action, make car slow down until stopping.The centrifugal block for clutch use that is installed on the cross wheel produces centnifugal force when center shaft rotates, under the effect of balance spring, keep certain circus movement track.When speed increases, to get rid of piece and radially open, the centrifugal block for clutch use path of motion in the centrifugal mechanism meets or exceeds when setting track, trimming screw on the centrifugal block for clutch use, the micro-switch that can start in the electric apparatus cuts off the elevator working current.Speed continues to increase, and shift fork discharges the straight pin on the friction shoe, under the torsion spring effect, friction shoe contacts with big frictional wheel outer round surface rapidly, forms self-locking, braking cross wheel, make the rope sheave stop by center shaft, produce by governor rope and rope groove friction and lift power, thereby make the safety tongs system acting.
Advantage of the present invention: the centrifugal mechanism of centrifugal governor is separated installation with rope sheave, and along the same axle mounting of velocity limiter axis horizontal, make velocity limiter under the reliable and stable prerequisite of safety action, can adapt to the elevator of various speed by the diameter of adjusting rope sheave.Miscellaneous part no longer is installed on the rope sheave of the present invention, is not needed other to change by adjusting the rope sheave diameter, obtain required rotative speed, under various speed, produce the centnifugal force of required appropriateness easily by the diameter that changes rope sheave; Easier assurance velocity limiter action is reliable and stable, and stressed less in the system.Solved the contradiction of structure between centrifugal block for clutch use and the rope sheave, to the oad and the path of motion less-restrictive of centrifugal block for clutch use.Velocity limiter is when low speed, and the quality and the radius of rotation of increase centrifugal block for clutch use that can be an amount of are dwindled the rope sheave radial dimension then, and velocity measurement mechanisms significantly improves also responsiveness stability and can reduce responsiveness than just producing enough big centnifugal force under the low velocity; Can also keep centrifugal mechanism constant, strengthen the rope sheave diameter, reduce the velocity measurement mechanisms spin velocity, the safety action failure-free has been easy to solve the stressed big defect of high-speed governor system simultaneously; Adopt the friction-type trigger mechanism, can 360 degree circumference on arbitrarily crawl do, response time is short; Simple in structure, working accuracy is not high, cost-cutting; Two opposite friction shoes of installation direction can move respectively when the upper and lower operation of elevator simultaneously; Reduce the responsiveness that the low speed velocity limiter is set, the kinetic energy when reducing the car stop, the safety that improves elevator.Be applicable to unidirectional or bidirectional speed limiter in the various ways elevator such as elevator, Cargo Lift, service stairs of various speed.
Describe the present invention in detail below in conjunction with drawings and Examples:
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is that the B of Fig. 2 is to view.
Among the figure: 1-bearing seat, 2-big friction wheel, 3-support, 4-sleeve pipe, 5-center shaft, 6-rope sheave, 7-cross wheel, 8-friction shoe, 9-centrifugal block for clutch use, 10-get rid of that piece plate, 11-connecting rod, 12-axle, 13-torsion spring, 14-shift fork, 15-axle, 16-compression spring, 17-stay bearing plate, 18-setting nut, 19-straight pin, 20-set screw, 21-centering block, 22-circle re-pack, the 23-micro-switch.
Embodiment: as shown in Figure 1, bearing seat 1 and big friction wheel 2 are separately fixed at the inboard of support 3 by bolt, governor sheave 6 is connected with center shaft 5 usefulness keys 5 of center shafts by the roller bearings in big friction wheel 2 and the bearing seat 1, and cantilever is installed in support 3 outsides.Cross wheel 7 is connected with center shaft 5 usefulness keys, is installed between the two stands, and rope sheave 6 is taken turns 7 coaxial and position relative fixed with cross.Friction shoe 8 usefulness axle 25 off-centre that are used for triggering are hinged on the side of cross wheel 7.Centrifugal mechanism by centrifugal block for clutch use, get rid of piece plate 10, the connecting rod 11 hinged parallel-crank mechanisms of forming, be installed in the opposite side of cross wheel with axle 12, can rotate flexibly.During normal operation, friction shoe 8 is acted on by torsion spring 13, and the straight pin 19 at its back side is pressed on shift fork 14 folding surfaces, and shift fork 14 is fixed on the connecting rod 11.Compression spring 16 on the connecting rod 11 is pressed on the stay bearing plate 17, is used for the centnifugal force that balance two centrifugal block for clutch use rotations produces, and 18 pairs of compression springs 16 of rotation setting nut apply predetermincd tension, can set the responsiveness of velocity limiter.As an example the wide area velocity limiter of Ti Chuing as can be seen center shaft 5 can rotate, centrifugal mechanism is taken turns 7 concentricity axles 5 with cross and is rotated, rope sheave 6 is taken turns 7 coaxial separated with cross and is installed, and can rotate and not have relative displacement together.
With reference to Fig. 3, electric apparatus comprises that centering block 21, circle re-pack 22, micro-switch 23.Micro-switch 23 is fixed on the outside of support 3 in the electric apparatus, and its motion end is placed on circle and re-packs in 22 the V-shaped groove, and centering block 21 and circle 22 coaxial being installed in the sleeve pipe 24 that re-pack can be rotated flexibly, and 24 of sleeve pipes are welded on the left socle 3.
During normal operation, with the rotation of cross wheel 7, friction shoe 8 rotates around friction wheel 2.Centrifugal mechanism is out of shape under action of centrifugal force, drives shift fork 14 and produces moving up and down, produces relative displacement between two straight pins 19 and shift fork 14 folding surfaces, but the gap that friction shoe 8 and friction wheel 2 outside faces are maintained fixed.
A set screw 20 is installed at the centrifugal block for clutch use edge, increases its circus movement track gradually with the change in location of centrifugal block for clutch use.During normal operation, the front end of the centering block 21 in the electric apparatus and its circular trace keep certain distance.
When reaching the speed of setting, the radius of rotation of centrifugal block for clutch use surpasses sets track, trimming screw 20 path of motions on the centrifugal block for clutch use and the front end of centering block 21 bump, centering block 21 drives circles 22 rotations that re-pack, re-pack 22 arc surface of circle is depressed micro-switch 23 motion ends and is made its action, cut off the elevator traction machine power supply, the traction sheave band-type brake makes deceleration of elevator.The electric apparatus responsiveness is lower than velocity limiter mechanical action speed.
If after the electric apparatus action, elevator still keeps the overspeed condition quickened, the radius of rotation of centrifugal block for clutch use will continue to increase, the displacement that shift fork 14 and straight pin are 19 also continues to increase, and when responsiveness, straight pin 19 comes off from the folding surface of shift fork 14, friction shoe 8 loses spacing back by torsion spring 13 compressing rotations, its outer round surface contacts with friction wheel 2 outer round surface rapidly, and relies on the pressure and the structural condition of self-locking of torsion spring, makes 7 brakings of cross wheel.Because cross wheel 7 is connected with rope sheave 6 coaxial rigid, so 6 whiles of rope sheave are by stop.Car still drives governor rope and does the hypervelocity motion at this moment, and grooving and governor rope produce friction force, rely on this friction force, start the elevator safety clamp device.
In slower elevators, rope sheave 6 can be contracted to minimum, for example use the governor rope of φ 6mm, just the diameter of rope sheave 6 can be made φ 180mm, the cireular frequency of centrifugal mechanism increases considerably, thereby be easy in low speed even Ultra-Low Speed elevator, obtain the reliability and stability that enough big centnifugal force comes safety action.
Now common slower elevators velocity limiter is because structural limitations, in order to strengthen the reliability that centnifugal force guarantees its action, have to improve the speed of velocity limiter action, no matter commonly what are to low speed velocity limiter command speed, its responsiveness but all is 0.7～0.8m/s, put aside a lot of unnecessary energy when so just making elevator from exceeding the speed limit to making the Room, reduced the safety of elevator.The wide area velocity limiter can provide bigger centnifugal force, no longer needs to improve governor tripping speed, helps the safety of elevator operation.
For the velocity limiter of high speed and super high speed elevator, the wide area velocity limiter can amplify rope sheave 6 diameters separately, strengthens rope sheave 6 and centrifugal mechanism diameter ratio, and need not change miscellaneous part, reduces centnifugal force.It is big to overcome high-speed centrifugal velocity limiter spin velocity, the excessive shortcoming of system's internal force during action.
Claims (6)
1, a kind of wide area elevator governor, bearing seat and big friction wheel are separately fixed at the inboard of support, be connected with center shaft by antifriction-bearing box, rope sheave is connected with key with center shaft, trigger the micro-switch outage by centrifugal mechanism, and the triggering friction shoe contacts the braking rope sheave with big friction wheel, it is characterized in that: rope sheave and centrifugal mechanism coaxial separated are installed, centrifugal mechanism is installed on rimless cross wheel, rope sheave and cross wheel are fixed on the center shaft, centrifugal mechanism is by two centrifugal block for clutch use on the diagonal line, get rid of the piece plate, the parallel-crank mechanism that rod hinge connection is formed, be hinged on the side that cross is taken turns with getting rid of piece plate axle, friction shoe off-centre is hinged on the another side of cross wheel, is with the recovery torsion spring on the friction shoe jointed shaft, and links to each other with the connecting rod of centrifugal mechanism by interlinked mechanism.
2, wide area elevator governor according to claim 1 is characterized in that: described interlinked mechanism is that the shift fork on being passed cross wheel and be fixed on connecting rod by the straight pin on the friction shoe contacts.
3, wide area elevator governor according to claim 1 is characterized in that: governor rope can be done circumference around horizontal middle spindle by the grooving on the rope sheave and rotate in vertical guide;
4, wide area elevator governor according to claim 1 is characterized in that: miscellaneous part no longer is installed on the rope sheave, and the diameter of adjusting rope sheave easily under various speed makes centrifugal mechanism produce the centnifugal force of appropriateness.
5, wide area elevator governor according to claim 1 is characterized in that: described cross wheel is gone up two opposite friction shoes of installation direction simultaneously, bidirectional-movement when velocity limiter can be realized the upper and lower operation of elevator.
6, wide area elevator governor according to claim 1 is characterized in that: described centrifugal mechanism re-packs by centering block and circle and contacts with micro-switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01274865 CN2517716Y (en) | 2001-11-23 | 2001-11-23 | Wide area elevator governor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01274865 CN2517716Y (en) | 2001-11-23 | 2001-11-23 | Wide area elevator governor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2517716Y true CN2517716Y (en) | 2002-10-23 |
Family
ID=33679395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01274865 Expired - Fee Related CN2517716Y (en) | 2001-11-23 | 2001-11-23 | Wide area elevator governor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2517716Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100581971C (en) * | 2006-10-31 | 2010-01-20 | 中山市南区机电产业技术中心 | Wireless speed limiting system of elevator |
| CN103910264A (en) * | 2014-04-21 | 2014-07-09 | 广东省汕尾市特种设备检验所 | Separable elevator speed limiter |
| CN105923490A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Novel anti-sliding unidirectional speed governor |
| CN105923491A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Unidirectional automatic reset speed governor capable of monitoring speed and being automatically triggered |
| CN105923492A (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 |
| CN106044450A (en) * | 2016-06-29 | 2016-10-26 | 西继迅达（许昌）电梯有限公司 | Novel automatic trigger one-way speed limiter |
| CN112141849A (en) * | 2019-06-27 | 2020-12-29 | 奥的斯电梯公司 | Speed limiter assembly for elevator system, elevator safety system and elevator system |
-
2001
- 2001-11-23 CN CN 01274865 patent/CN2517716Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100581971C (en) * | 2006-10-31 | 2010-01-20 | 中山市南区机电产业技术中心 | Wireless speed limiting system of elevator |
| CN103910264A (en) * | 2014-04-21 | 2014-07-09 | 广东省汕尾市特种设备检验所 | Separable elevator speed limiter |
| CN103910264B (en) * | 2014-04-21 | 2016-06-15 | 广东省汕尾市特种设备检验所 | Detachable elevator governor |
| CN105923490A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Novel anti-sliding unidirectional speed governor |
| CN105923491A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Unidirectional automatic reset speed governor capable of monitoring speed and being automatically triggered |
| CN105923492A (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 |
| CN106044450A (en) * | 2016-06-29 | 2016-10-26 | 西继迅达（许昌）电梯有限公司 | Novel automatic trigger one-way speed limiter |
| CN112141849A (en) * | 2019-06-27 | 2020-12-29 | 奥的斯电梯公司 | Speed limiter assembly for elevator system, elevator safety system 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |