CN103261072A - Speed governing device of elevator - Google Patents
Speed governing device of elevator Download PDFInfo
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- CN103261072A CN103261072A CN2010800707898A CN201080070789A CN103261072A CN 103261072 A CN103261072 A CN 103261072A CN 2010800707898 A CN2010800707898 A CN 2010800707898A CN 201080070789 A CN201080070789 A CN 201080070789A CN 103261072 A CN103261072 A CN 103261072A
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- rope sheave
- speed
- spring
- elevator
- car
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- 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
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
Provided is a speed governing device of an elevator which is capable of detecting overspeeds different between when lifting a car and when lowering the car without increasing the number of a speed governor and a switch. The device is provided with a sheave on which a speed governing rope circularly moved in conjunction with the car of the elevator is wound and hung and which is rotated in conjunction with the speed governing rope, a fly-weight which is provided to the sheave so as to be detected by a switch at a time when a displacement of a predetermined amount is caused toward outside in a radial direction of the sheave by a centrifugal force due to the rotation of the sheave, an elastic body which is provided to the sheave and increases a reaction force against the centrifugal force as the displacement amount toward outside in the radial direction of the fly-weight becomes larger, and a switching means for switching a constant of a spring of the elastic body at a time when the reaction force is generated in accordance with the rotation direction of the sheave.
Description
Technical field
The present invention relates to the speed-limit device of elevator.
Background technology
In elevator, need to detect the supervelocity of car and car is stopped.Therefore, in elevator, be provided with speed-limit device for detection of the supervelocity of car.As such speed-limit device, propose to have the speed-limit device (for example with reference to patent documentation 1) that utilizes flyball type velocity limiter and fly piece type velocity limiter.
The prior art document
Patent documentation
Patent documentation 1: No. 4306014 communique of Japan's special permission
In this speed-limit device, be provided with rope sheave flying piece type towing machine.At rope sheave around hanging with the speed limit rope.Between rope sheave and flyball type towing machine, be provided with engaging and disengaging gear.With fly piece type velocity limiter and be provided with ascent direction accordingly and stop to use switch.Be provided with descent direction accordingly with flyball type velocity limiter and stop to use switch.
Action to this speed-limit device describes.Speed limit moves with rope when car rises.Rope sheave and speed limit are rotated in linkage with rope.Only flying piece type velocity limiter and rope sheave moves in linkage.When the ascending velocity of car reached predetermined supervelocity, ascent direction stopped to move with switch.
Speed limit moves with rope when car descends.Rope sheave and speed limit are rotated in linkage with rope.Engaging and disengaging gear and rope sheave move in linkage.By this action the rotation of rope sheave is passed to flyball type velocity limiter.Transmit to make flyball type velocity limiter to move by this.When the descending speed of car reached predetermined supervelocity, descent direction stopped to move with switch.
When car descends, fly piece type velocity limiter and also move.But the value of the supervelocity the when value of the supervelocity during with decline is set at than rising is little.Therefore, descent direction stops to stop to move with switch prior to ascent direction with switch.Thus, when rising, car detects different supervelocities when descending.
Summary of the invention
The problem that invention will solve
But, in the structure of patent documentation 1 record, need two velocity limiters and two switches.
The present invention finishes in order to solve above-mentioned problem, and its purpose is to provide a kind of speed-limit device of elevator, and it need not to increase velocity limiter and switch and just can be when car rises detects different supervelocities when descending.
Be used for solving the means of problem
The speed-limit device of elevator of the present invention possesses: rope sheave, and it is around hanging with the speed limit rope, and described speed limit is with the movement that circulates in linkage of the car of rope and elevator, and described rope sheave and described speed limit are rotated in linkage with rope; Fly piece, it is arranged at described rope sheave, and this flies piece and can detected by switch when the radial outside of described rope sheave has been shifted scheduled volume by the centnifugal force of described rope sheave rotation generation; Elastic body, it is arranged at described rope sheave, and the described piece that flies is more big to the shift amount of described radial outside, and described elastomeric counter-force with respect to described centnifugal force is just more big; And switching member, it is according to the hand of rotation of described rope sheave, and the described elastomeric spring constant when producing described counter-force switches.
The effect of invention
According to the present invention, need not to increase velocity limiter and switch, just can be when car rises detect different supervelocities when descending.
Description of drawings
Fig. 1 is the constructional drawing of elevator of speed-limit device that has utilized the elevator of embodiments of the present invention 1.
Fig. 2 is the front view for the basic structure of the speed-limit device of the elevator of explanation embodiments of the present invention 1.
Fig. 3 is the front view of speed-limit device of the elevator of embodiments of the present invention 1.
Fig. 4 is the front view of test rod of speed-limit device that is used in the elevator of embodiments of the present invention 1.
Fig. 5 is the front view of test rod of speed-limit device that is used in the elevator of embodiments of the present invention 1.
Fig. 6 is the figure for the action of the speed-limit device of the elevator of explanation embodiments of the present invention 1.
Fig. 7 is the figure for the action of the speed-limit device of the elevator of explanation embodiments of the present invention 1.
Fig. 8 is the figure for the action of the speed-limit device of the elevator of explanation embodiments of the present invention 1.
The specific embodiment
With reference to the accompanying drawings embodiments of the present invention are described.In addition, in each figure, to the identical label of identical or suitable part mark, and suitably simplify or omit its repeat specification.
Embodiment 1
Fig. 1 is the constructional drawing of elevator of speed-limit device that has utilized the elevator of embodiments of the present invention 1.
In Fig. 1, label 1 is hoistway.Be provided with a pair of car guide rail 2 and a pair of counterweight guide rail (not shown) at hoistway 1.Top in hoistway 1 is provided with actuating device 3.Be provided with rope sheave 4 at actuating device 3.Be wound with main rope 5 at rope sheave 4.
End suspention at main rope 5 has car 6.Car 6 is by a pair of car guide rail 2 guiding.Other end suspention at main rope 5 has counterweight 7.Counterweight 7 is by a pair of counterweight rail guidance.
Support material 8 is fixedly arranged near the upper end of car guide rail 2.Upper surface at support material 8 is supported with velocity limiter 9.Be provided with tension wheel 10 in rotation mode freely near the bottom in hoistway 1.Use upper end and the bottom of rope 11 around hanging with speed limit respectively at velocity limiter 9 and tension wheel 10.
Be provided with emergency braking device 12 in the bottom of car 6.Emergency braking device 12 possesses bar 13.The end of bar 13 is connected with rope 11 with speed limit.
Then, the basic structure to velocity limiter 9 describes.
Fig. 2 is the front view for the basic structure of the speed-limit device of the elevator of explanation embodiments of the present invention 1.
In Fig. 2, label 14 is pedestal.Central authorities at pedestal 14 are provided with sheave shaft 15.Be supported with rope sheave 16 at sheave shaft 15 in rotation mode freely.At rope sheave 16 around hanging with speed limit with rope 11.Be provided with pair of pin 17 in the side of rope sheave 16.Be equipped with in freely the mode of rotating at these pins 17 and fly piece 18.These fly piece 18 and are linked mutually by connecting rod 19.
One end of pilot bar 20 and an end that flies piece 18 link.The other end of pilot bar 20 is to link near the mode that can slide and rope sheave 16 centers.Periphery at pilot bar 20 is nested with balance spring 21.In an other end outside that flies piece 18 action pawl 22 is arranged fixedly.
Be provided with ratchet 23 at sheave shaft 15 in rotation mode freely.Periphery at ratchet 23 is provided with a plurality of teeth 24.Be supported with pawl 25 17 of pins.Pawl 25 is configured to away from tooth 24.Be provided with torsion spring (not shown) at pawl 25.Torsion spring to pawl 25 to being connected to the direction application of force that flies piece 18.
In a side of pedestal 14 car being installed stops with switch 26.Stop in the mode of rotating freely switch lever 27 being installed with switch 26 at car.Switch lever 27 stops with switch 26 side-prominent to rope sheave 16 from car.
Opposite side at pedestal 14 is equipped with arm 28 in the mode of rotating freely.Rope sheave 16 sides at arm 28 are equipped with boots 29 in the mode of rotating freely.Be provided with the 28a of spring perch portion on the top of arm 28.28a is through with spring shaft 30 in spring perch portion.Between an end of spring shaft 30 and ratchet 23 tops, be connected with pipe link 31.The other end at spring shaft 30 is provided with spring perch portion material 32.Between the 28a of spring perch portion and spring perch portion material 32, be nested with in the periphery of spring shaft 30 and embrace a rope spring 33.
In such velocity limiter 9, speed limit is with the lifting of rope 11 and car 6 movement that synchronously circulates.Rope sheave 16 moves synchronously rotation with this.That is, rope sheave 16 rotates in linkage with the lifting of car 6.At this moment, fly piece 18 with rope sheave 16 revolution.Therefore, be applied with centnifugal force to flying piece 18.This centnifugal force according to the rotative speed of rope sheave 16, be that the speed of car 6 changes.
When the rising or falling speed of car 6 reaches predetermined value, fly the counter-force of the balance spring 21 that piece 18 opposing plays a role as elastic body and centered by pin 17, rotate.Rotate by this, fly the other end of piece 18 to the radial outside displacement of rope sheave 16.
The shift amount that flies piece 18 changes according to the rising or falling speed of car 6.When the shift amount that flies piece 18 increased, the counter-force of balance spring 21 also increased.When the rising or falling speed of car 6 reaches the 1st supervelocity (be generally command speed about 1.3 times), action pawl 22 and switch lever 27 butts.By this butt, switch lever 27 is rotated.By this rotation, make car stop to move with switch 26.
By this action, with the supply disconnecton of actuating device 3.By this cut-out, actuating device 3 is stopped.Stop by this, brake equipment (not shown) is moved.By this action, the rotation of rope sheave 4 is stopped.Stop by this, main rope 5 is stopped.Stop by this, car 6 is stopped.
Then, consider under situations such as main rope 5 fractures that even actuating device 3 stops, car 6 still continues the situation of decline.At this moment, when the descending speed of car 6 reaches the 2nd supervelocity (be generally command speed about 1.4 times), with this speed accordingly, putting on the centnifugal force that flies piece 18 increases.By the increase of this centnifugal force, the shift amount that flies piece 18 is increased.
By the increase of this shift amount, pawl 25 also rotates.By this rotation, make pawl 25 be sticked in tooth 24.By this engaging, the top of ratchet 23 is rotated slightly to anticlockwise direction.
This rotation is passed to pipe link 31, spring shaft 30 and spring perch portion material 32.Therefore, spring perch portion material 32 is to embracing rope spring 33 side shiftings.Move by this, make and embrace rope spring 33 to the outer circumferential side of rope sheave 16 28a of spring perch portion by pressure arm 28.
Press by this, arm 28 is rotated to the outer peripheral face side of rope sheave 16.By this rotation, make boots 29 be connected to speed limit rope 11.This butt is embraced the application force of rope spring 33 and is kept.Come speed limit is braked with rope 11 by this butt.Brake to stop the circulation that speed limit is used rope 11 by this.
Under this state, when car 6 continued to descend, bar 13 was moved upward with respect to car 6.Move by this, emergency braking device 12 is moved.Specifically, 12 pairs of car guide rails 2 of emergency braking device are controlled.Utilizing this to control stops car 6.
In this velocity limiter 9, use a car to stop with switch 26, detect identical supervelocity when car 6 rises and during decline.But, be set at the situation of different supervelocities when also existing in car 6 and rising and during decline.
So, in the present embodiment, according to the hand of rotation of rope sheave 16, come to switch by the spring constant of switching member to balance spring 21.Thus, can stop to detect different supervelocities when car 6 rises and during decline with switch 26 by a car.Below, the feature of the speed-limit device of present embodiment is described.
Fig. 3 is the front view of speed-limit device of the elevator of embodiments of the present invention 1.In addition, in Fig. 3, omitted ratchet 23 and arm 28 etc. and be used for keeping the speed limit diagram of the mechanism of rope 11.
At first, the balance spring 21 to present embodiment describes.In the present embodiment, balance spring 21 is connected in series by plural spring and forms.In Fig. 3, balance spring 21 is made of balance spring 21a, 21b.The spring constant of balance spring 21a is Ka.The spring constant of balance spring 21b is Kb. Balance spring 21a, 21b are directed to bar 20 with state adjacent one another are to be run through.
Then, the side to rope sheave 16 describes.Label 34 is the intermediate support material.Intermediate support material 34 possesses base portion 34a, arm 34b and extension 34c.Base portion 34a is embedded in sheave shaft 15 in the mode of rotating freely.It is 21 side-prominent that arm 34b forms from base portion 34a to balance spring.Arm 34b with the state configuration that is directed to bar 20 and runs through between balance spring 21a and balance spring 21b.That is, balance spring 21a is configured in arm 34b and flying between the piece 18.Between being configured in balance spring 21b near arm 34b and rope sheave 16 centers.It is outstanding that extension 34c forms from arm 34b to rope sheave 16 radial outside.
In balance spring 21a side, be formed with peristome 16a at rope sheave 16 with respect to the extension 34c of intermediate support material 34.Be provided with axle 35 with respect to peristome 16a in a side opposite with the extension 34c of intermediate support material 34.Axle 35 is parallel with sheave shaft 15.
End as the changer lever 36 of switching part material is installed on axle 35 in the mode of rotating freely.The other end of changer lever 36 is configured near the extension 34c of intermediate support material 34.Be formed with peristome 36a at changer lever 36.Peristome 36a is disposed on vertical projecting plane and peristome 16a position overlapped.
Then, the another side side to rope sheave 16 describes.Label 40 is axle.Axle 40 is arranged between the extension 34c of axle 35 and intermediate support material 34 on vertical projecting plane.Axle 40 is parallel with sheave shaft 15.The central portion of test rod 41 is installed on axle 40 in the mode of rotating freely.
Test rod 41 possesses arm 41a, the 41b of counterweight portion, operating rocker 41c and engagement section 41d.Arm 41a extends with respect to the radial outside of axle 40 to rope sheave 16.The 41b of counterweight portion is arranged on radially inner side with respect to axle 40.Operating rocker 41c is with respect to arm 41a and axle 40 quadratures roughly, and extends to the peristome 16a side of rope sheave 16.Engagement section 41d extends with the side of the mode parallel with sheave shaft 15 from operating rocker 41c end to rope sheave 16.Engagement section 41d is configured in the peristome 16a of rope sheave 16 and in the peristome 36a of changer lever 36.
Between the central portion and rope sheave 16 of test rod 41, be nested with neutral spring 42 at axle 40.Rope sheave 16 sides at neutral spring 42 are formed with installation portion 42a.The installation portion 42a of neutral spring 42 is installed on rope sheave 16.
Be provided with jut 43 in the both sides of pedestal 14.Jut 43 is configured in the height identical with sheave shaft 15 at the radial outside of rope sheave 16.
Then, use the fundamental operation of Fig. 4 and the test rod 41 of Fig. 5 to describe.
Fig. 4 and Fig. 5 are the front view of test rod of speed-limit device that is used in the elevator of embodiments of the present invention 1.In addition, Fig. 4 and Fig. 5 are the figure that observes Fig. 3 from opposition side.
As shown in Figure 4 and Figure 5, rope sheave 16 sides at the central portion of test rod 41 are provided with press section material 41e.Relative therewith, neutral spring 42 forms roughly C word shape.The press section material 41e of configuration detection bar 41 between the both ends of neutral spring 42.
At first, the situation to the radially almost parallel of the arm 41a of test rod 41 and rope sheave 16 describes.At this moment, as shown in Figure 4, material 41e is configured in center position with the press section.That is, the end of neutral spring 42 does not contact with press section material 41e.Therefore, the application force of neutral spring 42 does not act on press section material 41e.Therefore, the arm 41a of test rod 41 keeps the state with the radially almost parallel of rope sheave 16.
Then, radially not that the situation of almost parallel describes to the arm 41a of test rod 41 and rope sheave 16.At this moment, as shown in Figure 5, press section material 41e moves from center position.Move by this, the end of neutral spring 42 is contacted with press section material 41e.By this contact, make neutral spring 42 deflections.By this deflection, make neutral spring 42 pairs of press sections material 41e to the center position side application of force.That is, 42 pairs of press sections of neutral spring material 41e application of force is so that the radially almost parallel of the arm 41a of test rod 41 and rope sheave 16.
Then, use the action of the velocity limiter 9 of Fig. 3, Fig. 6～Fig. 8 to describe.
Fig. 6～Fig. 8 is the figure for the action of the speed-limit device of the elevator of explanation embodiments of the present invention 1.
At first, the situation of using the car 6 of Fig. 3 to begin to rise describes.At this moment, rope sheave 16 beginnings are rotated to clockwise direction.At this moment, in a side of pedestal 14, the arm 41a of test rod 41 and the following side contacts of jut 43.That is, jut 43 plays a role as the contact that contacts with the arm 41a of test rod 41.When rope sheave 16 was further rotated, test rod 41 turned to by the position shown in the long and two-short dash line in the counterclockwise direction with respect to rope sheave 16.
At this moment, the engagement section 41d of test rod 41 presses the side end face of the peristome 36a of changer lever 36.Changer lever 36 is rotated in a clockwise direction.By this rotation, changer lever 36 is contacted with support side stop part 37.At this moment, the balance spring 21a side contacts of the extension 34c of changer lever 36 ends and intermediate support material 34.Utilize and keep the application force of spring 39 to keep this state.
Under this state, the arm 41a of test rod 41 does not contact with jut 43.Therefore, the arm 41a of test rod 41 passes through from rope sheave 16 sides of jut 43.Thereafter, the arm 41a of test rod 41 returns the position with the radially almost parallel of rope sheave 16 again by the application force of neutral spring 42.Therefore, after the rising of car 6 had just begun, under the slower situation of the rotative speed of rope sheave 16, the arm 41a of test rod 41 contacted with jut 43 repeatedly.
Then, the ascending velocity of using the car 6 of Fig. 6 describes as the situation of command speed.At this moment, flying piece 18 rotates centered by pin 17 in the counterclockwise direction owing to centnifugal force.At this moment, the extension 34c of intermediate support material 34 is switched bar 36 supportings.Therefore, put on fly piece 18 centnifugal force only with the force balance of balance spring 21a.The spring constant Kup of the balance spring 21 when therefore, representing that with the spring constant Ka of balance spring 21a car 6 rises.
At this moment, along with car 6 becomes command speed, the 41b of counterweight portion is also acted on towards the centnifugal force of the radial outside of rope sheave 16.This centnifugal force has overcome neutral spring 42 makes press section material 41e get back to the application force of center position.Therefore, test rod 41 is kept the state after rotating in the counterclockwise direction.That is, when car 6 rose with command speed, the arm 41a of test rod 41 did not contact with jut 43.
When car 6 finishes to rise mobile and slows down and when stopping, the arm 41a of test rod 41 returns the position with the radially almost parallel of rope sheave 16 again by the application force of neutral spring 42.
Then, the situation of using the car 6 of Fig. 7 to begin to descend describes.At this moment, rope sheave 16 beginnings are rotated to anticlockwise direction.At this moment, in a side of pedestal 14, the arm 41a of test rod 41 and the last side contacts of jut 43.When rope sheave 16 was further rotated, test rod 41 turned to by the position shown in the long and two-short dash line along clockwise direction with respect to rope sheave 16.
At this moment, the engagement section 41d of test rod 41 presses the opposite side end face of the peristome 36a of changer lever 36.Changer lever 36 is rotated in the counterclockwise direction.By this rotation, changer lever 36 is contacted with release side stop part 38.At this moment, changer lever 36 ends are configured in not the extension 34c position contacting with intermediate support material 34.Utilize and keep the application force of spring 39 to keep this state.
Under this state, the arm 41a of test rod 41 does not contact with jut 43.Therefore, the arm 41a of test rod 41 passes through from rope sheave 16 sides of jut 43.Thereafter, the arm 41a of test rod 41 returns the position with the radially almost parallel of rope sheave 16 again by the application force of neutral spring 42.Therefore, after the decline of car 6 had just begun, under the slower situation of the rotative speed of rope sheave 16, the arm 41a of test rod 41 contacted with jut 43 repeatedly.
Then, the descending speed that uses the car 6 of Fig. 8 describes as the situation of command speed.At this moment, flying piece 18 rotates centered by pin 17 in the counterclockwise direction owing to centnifugal force.At this moment, the extension 34c of intermediate support material 34 discharges from the supporting of changer lever 36.Therefore, put on the force balance of the centnifugal force that flies piece 18 and the spring body that is synthesized by balance spring 21a and balance spring 21b.The spring constant Kdn of the balance spring 21 when therefore, representing that with (KaKb)/(Ka+Kb) car 6 descends.
When car 6 finishes to descend mobile and slows down and when stopping, the same when rising with car 6, the arm 41a of test rod 41 returns the position with the radially almost parallel of rope sheave 16 again by the application force of neutral spring 42.
In this structure, when car 6 rises and when descending, the spring constant of balance spring 21 is switched.Relative therewith, the amount of spin that fly piece 18 (the shift amount X of compression balance spring 21) of action pawl 22 when being connected to switch lever 27 is identical when car 6 rises and during decline.
Therefore, when car 6 rises, be under the situation of KaX at the application force of balance spring 21, car stops to move with switch 26.On the other hand, when car 6 descends, be under the situation of { (KaKb)/(Ka+Kb) } X at the application force of balance spring 21, car stops to move with switch 26.
Here, square proportional relation of centnifugal force and speed.Therefore, if the 1st supervelocity when establishing car 6 and rising is Vup, the 1st supervelocity when car 6 descends is Vdn, then the relation of (1) formula below satisfying between Vup and the Vdn.
Vup={（Ka+Kb）/Kb}
1/2·Vdn （1）
For example, when Ka=Kb, Vup=2
1/2Vdn.About 1.4 times of the 1st supervelocity Vdn when the 1st supervelocity Vup when at this moment, car 6 rises is set at car 6 and descends.
According to the embodiment 1 of above explanation, switch the spring constant of balance spring 21 according to the hand of rotation of rope sheave 16.Therefore, need not to increase velocity limiter 9 and car stop just can be when car 6 rises and detect different supervelocities during decline with switch 26.That is, can obtain few and corresponding with the above-below direction friction speed speed-limit device of number of components with simple structure.In addition, the engaging and disengaging gear that does not need speed-limit device in the past to possess.Therefore, do not exist because the reduction of the reliability that the breakage of engaging and disengaging gear causes.
In addition, utilize switching to the spring constant of balance spring 21 is carried out in the release of the supporting of middle support material 34 and supporting.Therefore, can obtain the speed-limit device corresponding with the above-below direction friction speed with simple mechanical component.
In addition, utilize changer lever 36 to carry out the supporting of middle support material 34 and the release of supporting.That is, can carry out the supporting of middle support material 34 and the release of supporting with simple mechanical component.
In addition, keep spring 39 for the contact of keeping between changer lever 36 and the stop part 37,38.Therefore, can changer lever 36 be configured in appropriate position according to the hand of rotation of rope sheave 16.
In addition, contact to make changer lever 36 to move by test rod 41 and jut 43.That is, can changer lever 36 be moved with simple mechanical component.
In addition, the 41b of counterweight portion of test rod 41 forms with the weight as following: when car 6 moved with command speed, the centnifugal force that puts on the 41b of counterweight portion was bigger than the counter-force of neutral spring 42.Therefore, the arm 41a that can prevent test rod 41 when car 6 moves with command speed contacts with jut 43.Thus, can reduce the number of times that test rod 41 is acted on contact loads.That is, prevent the breakage of test rod 41 and jut 43, can obtain the higher velocity limiter of reliability.
In addition, be that the spring constant of setting balance spring 21a, 21b with (1) formula gets final product under the situation of different supervelocity when car 6 rises and during decline.Therefore, can obtain the speed-limit device corresponding with the above-below direction friction speed with simple setting.
In addition, expectation makes near being centered close to the axle 35 of changer lever 36.At this moment, can prevent that changer lever 36 from rotating because of centnifugal force.In addition, expectation is by keeping spring 39 to produce confining force, and this confining force is used for making changer lever 36 can not rotate by the anticlockwise direction to Fig. 3 owing to centnifugal force.
Utilizability on the industry
As described above, according to the speed-limit device of elevator of the present invention, can be used in and need not to increase velocity limiter and switch and just can be when car rises detect in the elevator of different supervelocities when descending.
Label declaration
1: hoistway; 2: car guide rail; 3: actuating device; 4: rope sheave; 5: main rope;
6: car; 7: counterweight; 8: the support material; 9: velocity limiter; 10: tension wheel;
11: the speed limit rope; 12: emergency braking device; 13: bar; 14: pedestal;
15: sheave shaft; 16: rope sheave; 16a: peristome; 17: pin;
18: fly piece; 19: connecting rod; 20: pilot bar; 21: balance spring;
21a, 21b: balance spring; 22: the action pawl; 23: ratchet; 24: tooth;
25: pawl; 26: car stops to use switch; 27: switch lever; 28: arm;
28a: spring perch portion; 29: boots; 30: spring shaft; 31: pipe link;
32: spring perch portion material; 33: embrace the rope spring; 34: the intermediate support material;
34a: base portion; 34b: arm; 34c: extension; 35: axle; 36: changer lever;
36a: peristome; 37: the support side stop part; 38: discharge the side stop part;
39: keep spring; 40: axle; 41: test rod; 41a: arm;
41b: counterweight portion; 41c: operating rocker; 41d: engagement section; 41e: press section material;
42: neutral spring; 42a: installation portion; 43: jut.
Claims (7)
1. the speed-limit device of an elevator is characterized in that, the speed-limit device of described elevator possesses:
Rope sheave, it is around hanging with the speed limit rope, and described speed limit is with the movement that circulates in linkage of the car of rope and elevator, and described rope sheave and described speed limit are rotated in linkage with rope;
Fly piece, it is arranged at described rope sheave, and this flies piece and can detected by switch when the radial outside of described rope sheave has been shifted scheduled volume by the centnifugal force of described rope sheave rotation generation;
Elastic body, it is arranged at described rope sheave, and the described piece that flies is more big to the shift amount of described radial outside, and described elastomeric counter-force with respect to described centnifugal force is just more big; And
Switching member, it is according to the hand of rotation of described rope sheave, and the described elastomeric spring constant when producing described counter-force switches.
2. the speed-limit device of elevator according to claim 1 is characterized in that,
Described elastic body is made of at least two springs, and described at least two springs series connection is attached near the described rope sheave center and described flying between the piece,
Described switching member possesses:
The support material, it is configured between the described elastomeric adjacent spring; And
The switching part material, when described rope sheave rotates to a direction, described switching part material supports described support material, to prevent leaning on the shift amount of the spring of described radially inner side to change than described support material, when described rope sheave rotated to another direction, described switching part material discharged the supporting to described support material.
3. the speed-limit device of elevator according to claim 2 is characterized in that,
Described support material possesses:
Base portion, it is arranged at the S. A. of described rope sheave in rotation mode freely;
Arm, it is linked to described base portion, and is configured between the described adjacent spring; And
Extension, it extends to described radial outside from described arm,
Described switching part material is leaning on the position axis of described radial outside to be supported on described rope sheave than described support material, when described rope sheave rotates to a direction, described switching part material to described support material side rotate up to described extension position contacting, to prevent that described support material is with respect to the movement of described rope sheave, when described rope sheave rotates to another direction, described switching part material rotates to a side opposite with described support material, up to from the contacting of described extension the position that discharges.
4. the speed-limit device of elevator according to claim 3 is characterized in that, the speed-limit device of described elevator possesses:
The support side stop part, it is leaning on the position of described radially inner side to be arranged at described rope sheave than described switching part material;
Discharge the side stop part, it is leaning on the position of described radial outside to be arranged at described rope sheave than described switching part material; And
Keep spring, when described rope sheave rotates to a direction, described maintenance spring is to the described switching part material application of force, so that described switching part material is kept and the contacting of described extension and described support side stop part, when described rope sheave rotates to other direction, described maintenance spring is to the described switching part material application of force so that described switching part material from the contacting of described extension keep under the state that discharges and the contacting of described release side stop part.
5. according to the speed-limit device of each the described elevator in claim 2～claim 4, it is characterized in that the speed-limit device of described elevator possesses:
Contact, it is arranged at the outside of described rope sheave; And
Test rod, it is arranged at described rope sheave, when described rope sheave rotates to a direction, one side contacts of described test rod and described contact is also rotated, thereby make described switching part material move to the position of the described support material of supporting, when described rope sheave rotated to other direction, described test rod contacted and rotates with the opposite side of described contact, thereby made described switching part material move to release to the position of the supporting of described support material.
6. the speed-limit device of elevator according to claim 5 is characterized in that, the speed-limit device of described elevator possesses:
Neutral spring, it is arranged at described rope sheave, and to described test rod to the center position side application of force, to make described contact carry out described the contact with described test rod when the described rope sheave rotation; And
Counterweight, it is arranged at described test rod, and form following weight, when described rope sheave rotates at a predetermined velocity, the centnifugal force that puts on described counterweight is bigger than the counter-force of described neutral spring, in order to when described rope sheave rotates at a predetermined velocity, keep the state that described test rod moves out from described center position, and described contact is not contacted with described test rod.
7. according to the speed-limit device of each the described elevator in claim 2～claim 6, it is characterized in that,
Will than described support material by the spring constant of the described spring that flies the piece side be set at than the spring constant of described support material by the spring of described rope sheave central side: it is the supervelocity of described car when rising that the aggregate value of described spring constant multiply by the supervelocity income value of described car when descending again divided by the square root of the value that obtains by the value of the spring constant of the spring of described rope sheave central side than described support material.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2010/073120 WO2012086026A1 (en) | 2010-12-22 | 2010-12-22 | Speed governing device of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103261072A true CN103261072A (en) | 2013-08-21 |
Family
ID=46313330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800707898A Pending CN103261072A (en) | 2010-12-22 | 2010-12-22 | Speed governing device of elevator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2012086026A1 (en) |
| CN (1) | CN103261072A (en) |
| WO (1) | WO2012086026A1 (en) |
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| CN104828668A (en) * | 2015-05-21 | 2015-08-12 | 南通三洋电梯有限责任公司 | Elevator adjusting-type centrifugation speed limiting device |
| CN105731212A (en) * | 2014-12-24 | 2016-07-06 | 株式会社日立制作所 | Speed governor and elevator device |
| EP3326952A1 (en) * | 2016-10-27 | 2018-05-30 | Otis Elevator Company | Remote triggering device, overspeed governor assembly and elevator |
| CN110733951A (en) * | 2018-07-19 | 2020-01-31 | 奥的斯电梯公司 | Enhanced governor system for elevator |
| 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 |
| CN113493155A (en) * | 2020-04-03 | 2021-10-12 | 三菱电机大楼技术服务株式会社 | Speed limiter of elevator |
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| CN105173959B (en) * | 2015-10-10 | 2017-10-10 | 杭州沪宁电梯部件股份有限公司 | A kind of deflecting constant force limiter of speed |
| CN111017673B (en) * | 2018-10-09 | 2022-08-12 | 奥的斯电梯公司 | Remote triggering device, speed limiter assembly and elevator system |
| DE202019105089U1 (en) | 2018-11-19 | 2020-02-20 | Wittur Holding Gmbh | Speed limiter for a hoist with centrifugal brake |
| KR102512225B1 (en) | 2018-12-06 | 2023-03-21 | 미쓰비시 덴키 빌딩 솔루션즈 가부시키가이샤 | A monitoring device that avoids trapping users in elevators |
| CN110217665B (en) * | 2019-07-09 | 2024-04-02 | 象山昌升机械配件有限公司 | Link mechanism |
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| EP3326952A1 (en) * | 2016-10-27 | 2018-05-30 | Otis Elevator Company | Remote triggering device, overspeed governor assembly and elevator |
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| US10968077B2 (en) | 2018-07-19 | 2021-04-06 | Otis Elevator Company | Enhanced governor system for elevator |
| CN110733951B (en) * | 2018-07-19 | 2022-03-11 | 奥的斯电梯公司 | Enhanced governor system for elevator |
| 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 |
| CN113493155A (en) * | 2020-04-03 | 2021-10-12 | 三菱电机大楼技术服务株式会社 | Speed limiter of elevator |
| CN113493155B (en) * | 2020-04-03 | 2023-12-22 | 三菱电机楼宇解决方案株式会社 | Speed limiter of elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012086026A1 (en) | 2012-06-28 |
| JPWO2012086026A1 (en) | 2014-05-22 |
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Application publication date: 20130821 |