CN1612838A - Over-speed regulator device for elevator system - Google Patents
Over-speed regulator device for elevator system Download PDFInfo
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- CN1612838A CN1612838A CNA028267966A CN02826796A CN1612838A CN 1612838 A CN1612838 A CN 1612838A CN A028267966 A CNA028267966 A CN A028267966A CN 02826796 A CN02826796 A CN 02826796A CN 1612838 A CN1612838 A CN 1612838A
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- Prior art keywords
- overspeed governor
- elevator cage
- elevator
- hypervelocity
- speed
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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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- 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
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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
- B66B5/046—Mechanical overspeed governors of the pendulum or rocker arm type
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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
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
Abstract
An overspeed governor apparatus of an elevator sstem for detecting an overspeed of an elevator car travelling in an upward or downward direction for thereby actuating an upward or downward safety gear. The overspeed is determined as a function of position of the elevator car. The overspeed can be prevented with high reliability.
Description
Technical field
The present invention relates to a kind of overspeed governor device (also be referred to as " overspeed governor " or simply be referred to as " regulating control ") that is used for elevator device.
Background technology
In an elevator device, use an overspeed governor device usually.The overspeed governor device be parallel to drive system to the elevator cage as a safety system independently.
At present known overspeed governor puts into operation for two kinds of situations, will describe this two kinds of situations below.
First kind of situation
When in the drive system at elevator device during et out of order, the elevator cage is tending towards the hypervelocity motion.
Overspeed governor is designed to survey this hypervelocity, stops or closing the operation of drive system thus.In this case, if the shutoff operation of drive system is insufficient, then overspeed governor will engage safety device (also being referred to as safety gear), stop to move downward or stroke of elevator cage thus effectively.
Adopting weight equalizer to make up the elevator cage, adopt a safety device that makes progress or a mechanism along upward in the situation that drives the elevator device that moves.
In hitherto known traditional elevator device, use drg that is installed in the traction machine on the elevator cage or the downward safety gear that makes progress safety gear or link to each other and be provided with weight equalizer, purpose is to adjust or control above-mentioned hypervelocity.
Second kind of situation
When et out of order in the suspension in the elevator cage or trouble, the elevator cage will move down.
In this case, the overspeed governor device is surveyed the hypervelocity in compartment, engages the downward safety gear that is installed on the elevator cage this moment.
At USP 6,173, disclose an adjuster device in 813 the specification sheets, its structure design is used for improving the response or the speed of response of safety gear system.Specifically, disclose an electronic regulator in this publication, it comprises that one is attached in the accelerometer on the elevator cage.
More particularly, in case the fault or the trouble of suspension gear take place, safety gear puts into operation immediately downwards, detects to quicken and do not wait for and reach hypervelocity.In this case, arrive speed, thereby determine hypervelocity by the integrated acceleration that will record.In response, electronic regulator is opened an independent secure line that is provided with, and it includes an electromagnet.Its result is connected to the power interruption of electromagnet, after cause the actuating of downward safety gear again.
So far, beyond all doubt people have proposed the improvement to the mechanical adjustment apparatus.For example, can mention such structure, wherein, the operation of overspeed governor device is prevented by means of a pin, and this pin is suitable for shifting out or withdrawing, and for example, relies on an electromagnet.
Specifically, when a regulating control sent to drive system with an instruction that drives the elevator cage, this pin must be withdrawn or pull out.In this case, when the door of elevator cage in response to instruction when not mobile, or when the tractive force of traction sheave is not enough, or when the elevator cage because of the braking force of drg when not mobile inadequately, then, by means of activating or operate the regulating control that can be prevented from,, suppress or stop the motion of uncontrollable elevator cage by activating safety device upwards or downward safety device.
Be disclosed in USP6,173.813 in hitherto known mechanical overspeed governor device and the shortcoming of electrical overspeed regulating control be: adjuster device only can be operated based on the hypervelocity on the command speed of elevator device or only in zero-speed the time, and this can be by seeing in the some kinds of mechanical overspeed governor devices known to so far.
When the elevator cage that moves arrives one during near one of the extreme position in path, compartment, overspeed governor will be only in response to the previous hypervelocity of setting (that is Yu She hypervelocity).Its result, such situation may undesirably take place: the elevator cage will strike on the energy disperser before overspeed governor excites.
In addition, in its et out of order or when trouble when the elevator cage upward movement,, when not have safety device upwards or safety gear are set, maybe when the safety device that makes progress can not in time stop the elevator cage, then weight equalizer can strike on the energy disperser.
In this case, according to the speed of elevator cage, beating of elevator cage can be taken place.Therefore, cause at the top of access to elevators and provide a space to hold the essentiality of beating in the elevator cage.Incidentally, the energy disperser that is used for elevator cage and weight equalizer carries out conventional design according to the command speed of elevator cage respectively, also need consider the certain limit or the allowance that exceed the speed limit.
Fig. 6 in all accompanying drawings illustrates a pendulum type overspeed governor device (also being referred to as pendulum governor simply) known to so far.Additional pendulum type regulating control shown in being noted that among Fig. 6 schematically is the regulating control that sale is arranged on the market.
With reference to accompanying drawing, regulating control rope (not shown) drives a rope sheave 3.One cam 26 is fixed on the side surface of rope sheave 3 reliably.When rope sheave 3 rotated, cam following wheel 27 was followed the profile of cam 26.Cam following wheel 27 is installed on the end of goods of furniture for display rather than for use 4.One spring installation 15 is set, is used for cam following wheel 27 is flexibly pushed and is resisted against on the cam 26 towards cam 26.Goods of furniture for display rather than for use 4 is provided with a hook 4a at its another free end, and is suitable for rotating around the pivotal axis 4b that limits a supporting-point.
Along with the speed increase of rope sheave 3, a bit that goods of furniture for display rather than for use 4 arrival are such: because the inertia of goods of furniture for display rather than for use 4, cam following wheel 27 is no longer accompanyed or follow cam 27 on this aspect.Cam following wheel 27 is no longer accompanyed or follow this point of cam 26 and is mainly determined by spring installation 15.
As spring installation 15 or increase by the installation length that reduces spring in the situation of compression of spring installation 15, cam following wheel 27 speed of no longer accompanying or follow the time point place of cam 26 have correspondingly been increased at the spring that uses high rigidity.
When the rotating speed of rope sheave 3 further increases, the motion of goods of furniture for display rather than for use 4 also will be increased to certain level accordingly, and at this moment, a groove in all grooves 11 that form with cam 26 will be caught the hook 4a of goods of furniture for display rather than for use 4.Then, stop the rotation of rope sheave 3, between rope sheave 3 and rope, produce a tractive force.Utilize this tractive force, the safety device input up or down that is attached on the regulating control rope activates operation.
In the situation of pendulum type adjuster device shown in Figure 6, no matter the rotating speed of rope sheave 3 how, can use a pin 21 motions that prevent or block goods of furniture for display rather than for use 4.In state shown in Figure 6, pin 21 is positioned at a retracted position.Specifically, pin 21 can be maintained at this retracted mode by means of a spring (not shown), and is suitable for activateding by an electromagnet 22.This mechanism is used for test purpose.Pass through remote controller, the operation that can block adjuster device by means of an array of buttons.
At this moment, should be noted that: the function of pin 21 can be turned around.For instance, be forcibly held at retracted position by means of electromagnet 22 pins 21, and when being fed to the power interruption of electromagnet, allow pin 21 outwards outstanding.
For example, can use said mechanism to stop elevator cage motion out of control.When the door of the door of elevator cage or access to elevators when opening, be fed to the power interruption of electromagnet 22.No matter what reason, if the elevator cage begins to move, then by the input actuating of safety device up or down, the operation of regulating control is blocked.
The constructional feature of above-mentioned traditional overspeed governor device is: excite the execution of operation to depend on speed, and irrelevant with the position or the place of elevator cage.Because this situation, so, energy disperser must be installed prevent elevator cage bump flooring.
For instance, drg is designed to operate with 1.15 times excitation rate of command speed, and is 1.15 times the excitation rate actuating of the brake equipment (safety device) of elevator cage setting with command speed.
Therefore, in the situation of traditional overspeed governor device, its operation excites with the speed that sets in advance, and does not consider the position of elevator cage.Therefore, not only need on the flooring that stops, energy disperser to be installed respectively, and stopping the space allowance that beating of flooring place also will guarantee to stop the flooring place at each for holding the elevator cage.
Can understand that from the above the traditional overspeed governor device known to is only just effective in the situation of et out of order or trouble in the suspension at the end points place in path, compartment so far.Yet in insufficient or not enough other situation of the deceleration/decel at the extreme place in path, compartment, traditional overspeed governor device has produced very big shortcoming thus not on the position that prevents or suppress to exceed the speed limit.
Proposition of the present invention is in order to address the above problem, its objective is to an elevator device a kind of overspeed governor device is provided, this device can prevent to high reliability or suppress hypervelocity, simultaneously, in the process of elevator cage upward/downward movement along with the actuation speed that reduces regulating control from stopping reducing of flooring distance, thus, allow to reduce the size of energy disperser.
Announcement of the present invention
At the overspeed governor device that is used for elevator device according to the present invention, improved overspeed governor, the excitation rate of this regulating control is little by little reduced in the zone near the extreme place in path, compartment respectively.
Basically, the tube regulator installation site is not how, do not consider mechanical type or electric-type yet, the speed of design regulator operations, make it respectively at the top of access to elevators and place, bottom reduction of speed, reduce height and access to elevators the size of beating or beat of elevator cage thus respectively at the energy disperser at extreme part place.
Adopt said structure, this overspeed governor device can reduce speed according to the deceleration/decel of minimum assurance and the actuating distance of safety device up and down.
In general, normal compartment operating speed curve must be positioned at the scope of the velocity characteristic curve limit of overspeed governor device.For instance, the minimum of the safety device of up/down guarantees that deceleration/decel is 0.2g (g represents acceleration due to gravity).The maximum acceleration/deceleration within them of drive system is approximately 0.1g.The speed pattern that this means normal running always is positioned at the scope that the hypervelocity pattern that has enough nargin is covered.
Its result, the overspeed governor device will will not be excited in course of normal operation.Yet the latter is excited when the speed of elevator cage strides across the velocity curve of overspeed governor device, and therefore, the running of elevator device is stopped.
In the overspeed governor device of the above-mentioned type, typically use three excitor points as possible.In this case, first excitor point at the overspeed governor device is transmitted into the such warning signal of having of control system: " the locational speed of elevator cage in access to elevators surpasses the normal speed that is allowed on this position in access to elevators, this elevator cage ".
In addition, at second excitor point place corresponding to fair speed, the overspeed switch of the part of the secure line of a formation elevator device is opened.When this overspeed switch was opened, the power supply that leads to motor and drg was interrupted, with control system without any interference or support.
If the function that realizes at second excitor point place is insufficient, then safety device up or down drops at the 3rd excitor point place and activates.
By means of the overspeed governor device of the actuation speed of revising with variation, the elevator cage can be subjected to the protection of overspeed governor device on whole motion paths.Specifically, the overspeed governor device guarantees that the elevator cage always slows down before the extreme place in arrival path, elevator cage.Because the elevator cage slows down before the extreme place in arrival path, elevator cage, so in case of emergency weight equalizer will strike energy disperser with low speed.On this aspect, should be noted that: for hold space that beating of elevator cage keep can do as far as possible little because the speed of elevator cage is lower.In addition, energy disperser also can small size realizes, because the design of energy disperser is based on the speed of the extreme place of elevator cage motion or end.
As long as the stopping distance of the safety device of up/down is abundant, deceleration/decel is remained in the 1g, beating of elevator cage can not taken place then.Therefore, can avoid taking place the possibility of weight equalizer cushion at collision.In this case, can save to holding the space that beating of elevator cage keeps.Certainly, also can save energy disperser itself.
In order to realize the overspeed governor device of the above-mentioned type, can visualize some kinds of methods as demonstrating below.
From the viewpoint of machinery, pendulum type adjuster device is installed on the elevator cage, and hawser is securely fixed on the access to elevators, and tensioning on regulating control.When the elevator cage moved up and down, the rope sheave of overspeed governor device correspondingly began to rotate.The first embodiment of the present invention of the mechanical governor device that relates to the type is described with reference to Fig. 1 below.
At USP 6,173, demonstration ground has disclosed a device in 813 the specification sheets, wherein, uses an accelerometer that links to each other setting with the elevator cage to be used for measuring acceleration/accel, and thus, the integration by acceleration signal determines whether to exceed the speed limit promptly so-called electronic regulator.
Yet, in such as above-mentioned traditional electronic regulator, can not sufficiently utilize its ability or function.In other words, electronic regulator is only in conjunction with the use that moves downward of elevator cage.By the integration of speed signal, can derive the distance of carriage movements.This distance is combined in one or more R points of access to elevators inner setting, then knows the actual position of elevator cage in access to elevators.
One deceleration/decel initial point can be set to a R point.Use a treater according to this deceleration/decel initial point, can go out maximum allowable speed according to the position calculation of determining by accelerometer.
As the method that another kind changes, can utilize a reference table that is stored in the memory device to replace calculating maximum speed.This electronic regulator also can be improved, and, is implemented as such structure that is: the distance that its energy detecting elevator compartment had moved, and need not from regulating control to send instruction, thus, can prevent " motion out of control " effectively.
Hypervelocity is taking place or crossing in the situation of acceleration/accel or uncontrolled motion, safety device along the up/down direction can directly activated, described in the publication 66491/1992 (JP-A-4-66491) of the mode that activates such as the specification sheets of USP 6,173,813 or Japanese Patent Application Publication.Hereinafter describe and relate to such two embodiment of the present invention with reference to Figure 4 and 5.
According to the embodiment 2 and 3 of other practicality of the present invention, be parallel to and adopt traditional mechanical overspeed adjuster device of flywheel or goods of furniture for display rather than for use to use electronic type regulator.
When hypervelocity taking place or cross acceleration/accel, a pin of withdrawing under the electromagnet effect usually is subjected to the effect of spring force and excites regulating control thus.Then, by above-mentioned regulating control, the safety device input of up/down activates.Hereinafter two embodiment of the present invention that relate to this structure are described with reference to Fig. 2 and 3.
According to the present invention, can obtain many advantages, they will be described below.
In the extreme place of elevator cage or the end of stroke, can guarantee slowing down or deceleration/decel of elevator cage.
The space that can be reduced to the jumping height that holds the elevator cage and need to keep, or fully save this space.
The impact size of energy disperser can be reduced, or energy disperser can be fully saved.
Brief description of drawings
All accompanying drawings illustrate according to the overspeed governor device of five different embodiment of the present invention or a regulating control and a traditional regulating control, in all accompanying drawings:
Fig. 1 is the front elevation that the overspeed governor device of different travel speeds is shown, and this overspeed governor device is embodied as the mechanical governor according to the first embodiment of the present invention;
Fig. 2 is a block scheme, and the safety device system that an overspeed governor device and is provided with an electronic type regulator is shown, and they are based on the acceleration analysis principle of the second embodiment of the present invention;
Fig. 3 is a block scheme, and the safety device system that an overspeed governor device and is provided with an electronic type regulator is shown, and they are based on the range observation principle of the third embodiment of the present invention;
Fig. 4 is a block scheme, and an electronic type regulator that is embodied as based on the acceleration analysis principle is shown, and is suitable for directly activating the safety device of the up/down of a fourth embodiment in accordance with the invention;
Fig. 5 is a block scheme, and an electronic type regulator is shown, and it is designed to utilize the range observation of a fourth embodiment in accordance with the invention directly to activate the safety device of up/down; And
Fig. 6 illustrates the front elevation and the lateral plan of a hitherto known pendulum type overspeed governor device, this overspeed governor device respectively to shown in Fig. 1 to 3, provide a basis according to the device of first to the 3rd embodiment of the present invention.
Implement best mode of the present invention
Embodiment 1
Fig. 1 illustrates a mechanical overspeed adjuster device or a regulating control according to the first embodiment of the present invention.
With reference to accompanying drawing, pendulum type overspeed governor device 2 (hereinafter also simply being referred to as " regulating control 2 ") is arranged on the elevator cage 1.One end of one regulating control hawser 5 is fixed on the top ceiling of an access to elevators.This regulating control hawser 5 is stretched on the regulating control rope sheave 3 by reversing belt wheel 6a and 6b, and the other end is fixed on a mass or the weight 7, and thus, a tension force is applied on the regulating control hawser 5.Reversing belt wheel 6a and 6b are installed on the elevator cage 1, and hawser 5 is used for leading.
When goods of furniture for display rather than for use 4 stops or block the rotation of rope sheave 3, be applied on whole overspeed governor devices in next torque of effect of tractive force.In this case, regulating control 2 can rotate around a pivotal point 12.On putting at this moment, even a spring 13 also is used to stop regulating control 2 falling under its gravity when rope sheave 3 freely rotates.
When elevator cage 1 moves down, the regulating control 2 that is in blocked state rotates in the counterclockwise direction, thus, draw the bar 10 of a safety device, its result, one downward safety device (not shown) input operation (for example, seeing the publication 211181/1991 (JP-A-3-211181) of Japanese Patent Application Publication).
On the other hand, regulating control will rotate along clockwise direction when elevator cage 1 moves up, and thus, pushes away safety device bar 10, and therefore, a safety device that makes progress activated.
Goods of furniture for display rather than for use 4 and spring installation 15 cooperations are determined travel speed thus.On this aspect, should be noted that: in the situation of traditional regulating control, spring installation 15 has an end points that fixedly secures (with reference to Fig. 6).As mentioned above, when the spring force of spring installation 15 increases, travel speed will increase accordingly.In the situation of traditional overspeed governor device, should consider the command speed of elevator cage and the power of setting spring spare 15.
Be according to the overspeed governor device of the first embodiment of the present invention and the difference of traditional overspeed governor device: an end of spring installation 15 does not firmly fix, but a cam following wheel 14 of following a cam member 8 be installed on the end of spring 15 (as from Fig. 1 clearly as seen).
On the other hand, when the height minus of cam member 8 hour, when cam following wheel 14 was followed the curved profile of cam member 8 under the effect of the power of spring 15, the length of spring installation 15 was elongated or stretch.Its result, the power of spring installation 15 reduces, and thus, travel speed is slack-off.
Cam member 8 is fixedly mounted on the sidewall in access to elevators (that is the path of elevator cage 1).From the above, be appreciated that the variation of the travel speed of regulating control 2, consistent with the geometric form or the profile of cam member 8.The position (as shown in Figure 1) that has maximum ga(u)ge at cam member 8 can reach the highest travel speed.When cam following wheel 14 leaves cam member 8, the travel speed vanishing.
On this aspect, should be noted that: to goods of furniture for display rather than for use 4, the weight of that section arm of goods of furniture for display rather than for use 4 that should make the free end portion that cam following wheel 27 is installed is greater than the weight (see figure 1) of another section arm of the goods of furniture for display rather than for use 4 that is formed with hook 4a.Therefore, hook 4a follows wherein has groove 11 to be formed on a path in the cam 26.By means of this structure, realize the stroke of overspeed governor device 2.The end points place of 1 stroke in the elevator cage, the thickness of cam member 8 or highly little by little be reduced to zero.Therefore, travel speed also will little by little reduce.
Implement cam member 8 by form as shown in Figure 1, under any speed, do not have in the zone of cam member 8 the travel speed vanishing of regulating control 2.
Embodiment 2
Fig. 2 is a block scheme, and according to a second embodiment of the present invention an overspeed governor system is shown.Overspeed governor system according to this instant embodiment of the present invention is implemented as an array configuration, and it is the combination of hitherto known traditional overspeed governor device and the extra electronic type regulator that is provided with.Be shown in traditional tension sheave 19 that partly comprises an elevator cage 16, an overspeed governor device 17, a regulating control hawser 18 and have a suspension tensioning weight 20 of the overspeed governor system among Fig. 2.(regulating control for example can be positioned in the machine house, in the access to elevators or on the carriage top).
Regulating control hawser 18 is fixed on the safety device that is installed on the elevator cage 16.When the moving velocity of elevator cage 16 reaches the hypervelocity of the regulating control 17 that sets in advance, regulating control 17 action, thus, regulating control hawser 18 is conditioned device 17 pullings, realizes being installed in the actuating of the safety device up or down on the elevator cage 16.As regulating control 17, can adopt the traditional regulating control that is equipped with a regulating control excitor, it is made up of an electromagnet 22 and an above-mentioned pin 21 (with reference to Fig. 6).
In the situation according to the overspeed governor device of instant embodiment of the present invention as shown in Figure 2, the layout of electromagnet 22 makes the spring force of pin 21 antagonistic springs remain on the state of withdrawal.
Specifically, in order to sell 21 maintenances continuously or to maintain retracted mode, be fed to constantly on the electromagnet 22 from a uninterrupted power supply (ups) Unity by an electric wiring 23 power supplys.
On the other hand, when being fed to power supply on the electromagnet 22 because the opening (that is, relay 24 dead electricity) of the contact of relay 24 and when interrupting, overspeed governor device (regulating control 17) action causes safety device up or down to activated.
Above-mentioned relay 24 is arranged through the electronic circuit that is provided with that links to each other with controller 100 and controls.Specifically, only when three kinds of situations complete effectively (will be described below), the contact of relay 24 is in response to closing from the output signal " H level " of an AND gate circuit 25 outputs.Therefore, power supply is supplied in electromagnet 22 from uninterrupted power supply (UPS) (UPS).
On the contrary, in any at least effective or dissatisfied situation in three kinds of situations, the contact of relay 24 is opened (that is, becoming open circuit), and regulating control 17 action.
Above-mentioned three kinds of situations are determined by the acceleration alpha of measuring elevator cage 16 by means of an accelerometer 31 basically.The acceleration alpha that records is as the input information of electronic circuit.
Above-mentioned electronic circuit comprises an integrated circuit 32, and it is designed to the acceleration alpha that records is carried out integration, thus, determines speed Vt.In addition, electronic circuit comprises an integrator 33, and it designs integrating rate Vt, thus, determines a relative miles of relative movement Lt.
According to the relative miles of relative movement Lt that determines like this and be arranged on one or two R point of access to elevators in-to-in (switch) Pr, just know the accurate position of elevator cage 16 in access to elevators.In other words, can determine to record the absolute value La of distance.
In addition, according to the position of the elevator cage of representing by absolute value La 16, can determine the first hypervelocity value Vs1 and the second hypervelocity value Vs2.In the application of reality, these first and second hypervelocities value Vs1 and Vs2 can be determined according to the position (absolute value La) of elevator cage 16, or be calculated by means of a microprocessor or microcomputer.Perhaps, hypervelocity value Vs1 and Vs2 also can be determined with reference to the look-up table that is stored in the memory device (storage element).
The first and second hypervelocity value Vs1 and the Vs2 of Que Dinging compare with actual speed Vt respectively by means of comparator 41 and 42 by this way.
In operation, when speed Vt be higher than (comprising) first hypervelocity value Vs1 (that is, and Vt? during Vs1) time, comparator 41 sends an alerting signal to controller 100.
For first kind of situation in above-mentioned three kinds of situations, determine by checking the actual speed Vt that draws by acceleration alpha.In other words, when speed Vt is lower than the second hypervelocity value Vs2 (promptly, when Vt＜Vs2), comparator 42 produces the output signal of high level (H), be not less than the second hypervelocity value Vs2 (promptly and work as speed Vt, do you work as Vt? Vs2) time, comparator 42 produces the output signal of low-level (L), so that regulating control 17 action.
Second kind of situation determines that by checking stroke distances controllably not going in elevator cage 16 should distance.For this purpose, 43 couples of speed Vt of integrator integration is determined a relative stroke distances Lt1 thus, and elevator cage 16 moves past on this distance in the state that driving command C slave controller 100 sends.On this aspect, yet, be pointed out that also when sending in the driving command C slave controller 100, relative miles of relative movement Lt1 remains zero.
Thereafter, relatively this relative miles of relative movement Lt1 and " maximum moving distance Lmax out of control " of a comparator 44.When Lt1＜Lmax, comparator 44 produces a high level (H) output signals.
Do you on the other hand, are satisfying Lt1? in the situation of Lmax state, that is, when elevator cage 16 moved one greater than maximum moving distance out of control apart from the time, comparator 44 produces one low-level (L) output signals, movement governor 17 thus.
The 3rd situation is to determine by the acceleration alpha that inspection records.Specifically, the acceleration alpha that relatively records of a comparator 45 with cross accekeration α s.When the acceleration alpha that records was higher than accekeration α s (that is, as α＜α s), comparator 45 produced a high level (H) output signal.On the contrary, when α＞α s, comparator 45 produces one low-level (L) output signals, and movement governor 17 thus.
When by comparator 42,44 and 45, all three situations detect when satisfying, and AND gate circuit 25 produces high-level (H) output signals.Its result, relay 24 is supplied with power supply, and is promptly charged, and thus, power supply is fed to electromagnet 22 by the normally open contact of relay 24.
On the other hand, when detecting any in three kinds of situations by comparator 42,44 or 45 and do not satisfy, AND gate circuit 25 produces low-level (L) output signals, opens the normally open contact of relay 24 thus, and its result causes adjuster device 17 to move.
Fig. 3 is a block scheme, and a structure of elevator device that is equipped with the overspeed governor device of an a third embodiment in accordance with the invention is shown.In Fig. 3, represent with identical label with the identical or cooresponding parts of the parts among above-mentioned Fig. 2, and omit the description of its repetition.
In the situation of the system that considers now, a distance L that records from distance measurement sensor 51 outputs is directly used in the electronic circuit, and the acceleration alpha that records is not used as input information.Except this difference, the system of instant embodiment is substantially similar to above-mentioned system's (see figure 1) according to the first embodiment of the present invention according to the present invention.
The measurement of distance L can be adopted laser or Radar Technology.Electronic circuitry design becomes directly determines the first hypervelocity value Vs1 and the second hypervelocity value Vs2 according to the distance L that records.
In addition, the distance L that records also is used for deriving relative movement distance Lt1, and elevator cage 16 moves through this distance in the driving command C state that slave controller 100 does not send.
Speed Vt can by means of a differentiator 52 by to record, draw as the distance L differentiate of the function of time.On the other hand, the acceleration/accel that records can be by means of a differentiator 53 by differentiate draws to speed Vt.
As mentioned above, the velocity amplitude Vt of derivation respectively with comparator 41 and 42 in the first hypervelocity value Vs1 and the second hypervelocity value Vs2 be used in combination.
On the other hand, the maximum moving distance Lmax out of control in relative movement distance Lt1 and the comparator 44 is used in combination, and the mistake combination of acceleration values in acceleration/accel and the comparator 45 is used.
Adopt system architecture as shown in Figure 3, the basic move operation of regulating control 17 is with before identical in conjunction with the described operation of Fig. 2.Much less, can reach equally in system as shown in Figure 3 with the similar many favourable effect of the effect of said system (Fig. 2).
Fig. 4 roughly schematically illustrates a structure of elevator device that is provided with the electronic type overspeed governor device (also being referred to as electronic type regulator) of a fourth embodiment in accordance with the invention.In Fig. 4, represent with identical label with the identical or cooresponding parts of above-mentioned parts (Fig. 2), and omit the description of its repetition.
In the situation of the system of instant embodiment according to the present invention, the electronic regulator (not shown) is provided with: a pin 21U and an electromagnet 22U, and their cooperations constitute a regulating control excitor upwards; And, a pin 21D and an electromagnet 22D, their cooperations constitute a downward regulating control excitor, and electronic regulator is arranged to directly activate safety device upwards or downward safety device.
Be communicated with power supply by electric wiring 23U or 23D, directly excite upwards safety device or safety device downwards by means of electromagnet 22U or 22D with spring assembly.
If there is not power supply, above-mentioned safety device will be by spring-actuated.For fear of this situation, power supply interruptedly is fed on electromagnet 22U and the 22D constantly and not.This stable power circuit is divided into two electric wiring 23U and 23D.Electric wiring 23U is used for power supply is fed to safety device, and electric wiring 23D is used for power supply is fed to down safety device.In other words, being shown in electric wiring 23 among Fig. 1 is extended to and can distinguishes motion up and down respectively.
The one relay 24U that is used for electromagnet 22U is parallel to electric wiring 23U and connects, and a relay 24D who is used for electromagnet 22D is parallel to electric wiring 23D connection, wherein, relay 24U switches in response to the output signal of an AND gate circuit 25U who links to each other with comparator 44U, and relay 24D is switched in response to the output signal of an AND gate circuit 25D of the setting that links to each other with comparator 44D.
AND gate circuit 25U has an input terminal, and the output signal of comparator 62 puts on this terminal.Similarly, AND gate circuit 25D has an input terminal, and comparator 45 and 63 output signal put on this terminal respectively.
With reference to Fig. 4, in the system of a fourth embodiment in accordance with the invention, except using the above-mentioned first hypervelocity value Vs1 and the second hypervelocity value Vs2, also use the 3rd hypervelocity value Vs3U and Vs3D.
Along being input in the comparator 62 to the 3rd hypervelocity value Vs3U of (UP) upward, so that compare with actual speed Vt.Similarly, be input in the comparator 63 along the 3rd hypervelocity value Vs3D of downward direction (DOWN), so as with actual speed Vt relatively.
The safety device or move down safety device of moving up of the moving direction (UP and DOWN) that uses the 3rd hypervelocity value Vs3U or Vs3D to activate to depend on the elevator cage (not shown).
As the situation of above-mentioned embodiment, use the first hypervelocity value Vs1 to send one and report to the police to controller 100.
Use the second hypervelocity value Vs2 to open the contact of relay 61 (secure line).The secure line that comprises relay 61 is used for the power supply of interrupt delivery to machine and brake system.
Only when a fault or trouble take place, just used accekeration α s in suspension.Therefore, move down in the process, use this value in the elevator cage.
" uncontrolled motion " should be categorized into upwards uncontrolled motion and uncontrolled motion downwards, so that identification is dropped into the safety device that activates independently.
Adopt system architecture as shown in Figure 4, can high reliability more effectively suppress or prevent " uncontrolled motion ".
Embodiment 5
Fig. 5 is a block scheme, and a structure that is provided with the elevator device of electronic type overspeed governor device according to a fifth embodiment of the invention roughly schematically is shown.In Fig. 5, represent with identical label with the identical or cooresponding parts of above-mentioned parts (Fig. 3 and Fig. 4), and omit the description of its repetition.
In the system that considers now, acceleration/accel is not measured, but the distance L that direct use records as the situation of above-mentioned the 3rd embodiment.Except this difference, in structure and operating aspect, the system with the 4th embodiment shown in Figure 4 is identical basically according to the system of instant embodiment.
With reference to Fig. 5, electric wiring is designed to determine: relative movement distance LtU, elevator cage 16 move up in the state that driving command C does not send by this distance; And, relative movement distance LtD, elevator cage 16 moves down by this distance in the state that driving command C does not send.
Therefore, the comparator 44U relevant with moving up of elevator cage makes comparisons relative movement distance LtU and maximum moving distance Lmax, and the comparator 44D relevant with moving down of elevator cage makes comparisons relative movement distance LtU and maximum moving distance Lmax.
Then, relay 24U is driven by relevant AND gate circuit 25U and 25D with relay 24D, thus, and the operation of safety device input.
Commercial Application
From top description, can understand, provide the hypervelocity that is used for elevator device to transfer according to of the present invention teaching The joint apparatus, it can effectively prevent or suppress the hypervelocity of elevator cage and do not have failure.
Specifically because structure of the present invention, when the elevator cage approach when stopping the floor that this structure is used for reducing or Reduce translational speed, cause the speed of elevator cage and buffer bump can be reduced in theory zero. Therefore, from reason Say on the opinion and can save buffer.
Therefore, the deceleration of elevator cage can be at least in the termination of moving near the elevator cage or the position of terminating point The place is guaranteed. Rely on this feature, (that is, usually being arranged on elevator leads to be used for holding the space of beating by the elevator cage The allowance space at top, road) can advantageously reduce or even save.
In addition, because can reduce the impact of buffer, so, also can reduce size or the size of access to elevators.
Claims (10)
1. the overspeed governor device of an elevator device, whether it is used for exceeding the speed limit along the elevator cage that makes progress or downward direction is moved in the detecting elevator system, thus, activating one makes progress or downward safety device, it is characterized in that the value of described hypervelocity is confirmed as the function of the position of described elevator cage.
2. the overspeed governor device of elevator device as claimed in claim 1, it is characterized in that, described overspeed governor device comprises a memory device, wherein, the hypervelocity that is defined as the function of described position stores with all numerical value, the access to elevators in-to-in cam that these numerical value and are fixedly installed on described elevator cage is relevant, and
The all described hypervelocity values of described memory storage, these values can be respectively the continuous outline curves of described cam, or all discrete values of utilizing all marks to be identified.
3. the overspeed governor device of elevator device as claimed in claim 1 or 2, described overspeed governor device is implemented as a pendulum type overspeed governor device that is equipped with a spring installation, to be used for determining moving velocity, it is characterized in that, cause the compression degree of described spring installation to change by means of the described access to elevators in-to-in cam that is arranged on described elevator cage regularly.
4. the overspeed governor device of elevator device as claimed in claim 3, it is characterized in that, described overspeed governor device is arranged on the top of an elevator cage that drives by means of hawser, and an end of hawser firmly fixes, and the other end is connected in a slack-free weight.
5. the overspeed governor device of elevator device as claimed in claim 1, it is characterized in that, described overspeed governor device is implemented as a mechanical overspeed adjuster device, it mechanically moves by an extra electron type regulating control that is provided with or the directly actuated device of secure line that was arranged in one minute, and
Divide the described secure line that is arranged controlled by the electron type regulating control of described extra setting.
6. the overspeed governor device of elevator device as claimed in claim 1 is characterized in that, described safety device up or down directly activated by means of described electron type overspeed governor.
7. the overspeed governor device of elevator device as claimed in claim 1, it is characterized in that, described safety device up or down is controlled respectively by the secure line that separates, described secure line by two independently loop constitute, controlled by described electron type overspeed governor.
8. as the overspeed governor device of claim 5 or 6 described elevator devices, it is characterized in that, described electron type overspeed governor is designed to derive the speed of described elevator cage and the relative distance that described elevator cage moves through by the acceleration/accel that records that uses described elevator cage
By making up described relative distance and the one or more R points that are marked in the described access to elevators, derive an absolute distance, and
Determine the hypervelocity value of described elevator cage with algorithmic approach in the current position, perhaps, by with reference to a table that is stored in the memory device, and replace arithmetic to determine method, determine described hypervelocity value as the function of the position of described elevator cage by look-up table.
9. as the overspeed governor device of claim 5 or 6 described elevator devices, it is characterized in that described electron type overspeed governor is designed to derive according to the distance that records the speed and the acceleration/accel of described elevator cage,
According to the described distance that records, determine the hypervelocity value of described elevator cage with algorithmic approach in the current position, perhaps, replace arithmetic to determine method by look-up table, come to determine described hypervelocity value as the function of the position of described elevator cage.
10. as the overspeed governor device of claim 5 or 6 described elevator devices, it is characterized in that, can prevent that when all following situations satisfy simultaneously described downward safety device from activateding:
The speed of described elevator cage is not higher than the hypervelocity value of the described elevator cage that depends on its position,
The acceleration/accel of described elevator cage is lower than it and crosses accekeration, and
Described elevator cage is shorter than predetermined value there not being slave controller to send the distance that moves through under the situation of instruction.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2002/004093 WO2003091142A1 (en) | 2002-04-24 | 2002-04-24 | Overspeed governor apparatus for elevator system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1612838A true CN1612838A (en) | 2005-05-04 |
| CN100386251C CN100386251C (en) | 2008-05-07 |
Family
ID=29267252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028267966A Expired - Fee Related CN100386251C (en) | 2002-04-24 | 2002-04-24 | Over-speed regulator device for elevator system |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1497214A4 (en) |
| JP (1) | JP4303133B2 (en) |
| KR (1) | KR100633662B1 (en) |
| CN (1) | CN100386251C (en) |
| WO (1) | WO2003091142A1 (en) |
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| CN102211726A (en) * | 2010-04-02 | 2011-10-12 | 涂翼民 | Speed sensing overspeed triggering device for cage and counterweight |
| CN101522554B (en) * | 2006-10-18 | 2011-11-23 | 三菱电机株式会社 | Elevator speed governor and elevator device |
| CN102803115A (en) * | 2009-06-04 | 2012-11-28 | 因温特奥股份公司 | Speed limiter in an elevator system |
| CN103282298A (en) * | 2010-12-27 | 2013-09-04 | 三菱电机株式会社 | Termination floor forced deceleration device for elevator |
| CN103459289A (en) * | 2011-04-01 | 2013-12-18 | 三菱电机株式会社 | Elevator device |
| CN104583108A (en) * | 2012-08-28 | 2015-04-29 | 株式会社日立制作所 | Elevator device |
| CN110733951A (en) * | 2018-07-19 | 2020-01-31 | 奥的斯电梯公司 | Enhanced governor system for elevator |
| CN111372880A (en) * | 2017-10-17 | 2020-07-03 | 维托控股有限公司 | Device for controlling a speed-limiting belt and electronic speed limiter |
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| US7753176B2 (en) * | 2004-04-20 | 2010-07-13 | Mitsubishi Denki Kabushiki Kaisha | Emergency stop system of elevator |
| KR100628559B1 (en) | 2004-05-11 | 2006-09-26 | 강동근 | Elevator |
| EP1798183B1 (en) * | 2004-10-07 | 2013-01-16 | Mitsubishi Denki Kabushiki Kaisha | Elevator apparatus |
| CN1960930B (en) * | 2004-12-27 | 2010-12-08 | 三菱电机株式会社 | Speed governor device of elevator |
| JP2006182483A (en) * | 2004-12-27 | 2006-07-13 | Mitsubishi Electric Corp | Governor device of elevator |
| EP1864936B1 (en) * | 2005-03-30 | 2014-10-01 | Mitsubishi Denki Kabushiki Kaisha | Elevator apparatus |
| KR100816172B1 (en) * | 2006-07-18 | 2008-03-21 | 미쓰비시덴키 가부시키가이샤 | Elevator apparatus |
| KR100881503B1 (en) | 2007-03-27 | 2009-02-05 | 미쓰비시덴키 가부시키가이샤 | Speed governor device of elevator |
| DE502007002741D1 (en) * | 2007-05-24 | 2010-03-18 | Wittur Holding Gmbh | Speed and acceleration monitoring unit with electronically controlled servo release for use with conveyors |
| JP2009215057A (en) * | 2008-03-13 | 2009-09-24 | Toshiba Elevator Co Ltd | Compulsory deceleration control system of elevator |
| US8939262B2 (en) | 2009-03-16 | 2015-01-27 | Otis Elevator Company | Elevator over-acceleration and over-speed protection system |
| EP2251295B1 (en) * | 2009-05-13 | 2013-07-03 | Hans Jungblut GmbH & Co. KG | Safety system for lifting equipment with a cabin, in particular lifts |
| EP2456702B1 (en) | 2009-07-20 | 2020-05-20 | Otis Elevator Company | Elevator governor system |
| JPWO2011027432A1 (en) * | 2009-09-02 | 2013-01-31 | 三菱電機株式会社 | Elevator equipment |
| JP6062009B2 (en) * | 2015-09-18 | 2017-01-18 | 三菱電機株式会社 | Elevator equipment |
| EP3309104B1 (en) | 2016-10-14 | 2019-10-09 | KONE Corporation | Method for avoiding unwanted safety gear tripping in an elevator system, controller adapted to perform such a method, governor brake and elevator system each having such a controller |
| CN110395641B (en) | 2018-04-25 | 2021-12-14 | 奥的斯电梯公司 | Speed limiter assembly and elevator system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6222546Y2 (en) * | 1978-12-27 | 1987-06-08 | ||
| US5407028A (en) * | 1993-04-28 | 1995-04-18 | Otis Elevator Company | Tested and redundant elevator emergency terminal stopping capability |
| JPH09240938A (en) * | 1996-03-12 | 1997-09-16 | Toshiba Corp | Safety device of elevator |
| US6170614B1 (en) * | 1998-12-29 | 2001-01-09 | Otis Elevator Company | Electronic overspeed governor for elevators |
| JP2001354372A (en) * | 2000-06-14 | 2001-12-25 | Mitsubishi Electric Corp | Elevator device |
-
2002
- 2002-04-24 KR KR1020047012984A patent/KR100633662B1/en not_active IP Right Cessation
- 2002-04-24 JP JP2003587718A patent/JP4303133B2/en not_active Expired - Fee Related
- 2002-04-24 WO PCT/JP2002/004093 patent/WO2003091142A1/en active Application Filing
- 2002-04-24 EP EP02720588A patent/EP1497214A4/en not_active Withdrawn
- 2002-04-24 CN CNB028267966A patent/CN100386251C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101522554B (en) * | 2006-10-18 | 2011-11-23 | 三菱电机株式会社 | Elevator speed governor and elevator device |
| CN102803115A (en) * | 2009-06-04 | 2012-11-28 | 因温特奥股份公司 | Speed limiter in an elevator system |
| CN102803115B (en) * | 2009-06-04 | 2015-02-11 | 因温特奥股份公司 | Speed limiter in an elevator system |
| CN102211726B (en) * | 2010-04-02 | 2014-06-18 | 涂翼民 | Speed sensing overspeed triggering device for cage and counterweight |
| CN102211726A (en) * | 2010-04-02 | 2011-10-12 | 涂翼民 | Speed sensing overspeed triggering device for cage and counterweight |
| CN103282298A (en) * | 2010-12-27 | 2013-09-04 | 三菱电机株式会社 | Termination floor forced deceleration device for elevator |
| CN103282298B (en) * | 2010-12-27 | 2015-07-08 | 三菱电机株式会社 | Termination floor forced deceleration device for elevator |
| CN103459289A (en) * | 2011-04-01 | 2013-12-18 | 三菱电机株式会社 | Elevator device |
| CN103459289B (en) * | 2011-04-01 | 2016-10-12 | 三菱电机株式会社 | Lift appliance |
| CN104583108A (en) * | 2012-08-28 | 2015-04-29 | 株式会社日立制作所 | Elevator device |
| CN111372880A (en) * | 2017-10-17 | 2020-07-03 | 维托控股有限公司 | Device for controlling a speed-limiting belt and electronic speed limiter |
| CN110733951A (en) * | 2018-07-19 | 2020-01-31 | 奥的斯电梯公司 | Enhanced governor system for elevator |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1497214A4 (en) | 2010-12-29 |
| WO2003091142A1 (en) | 2003-11-06 |
| KR100633662B1 (en) | 2006-10-11 |
| JP2005523859A (en) | 2005-08-11 |
| EP1497214A1 (en) | 2005-01-19 |
| KR20040080006A (en) | 2004-09-16 |
| JP4303133B2 (en) | 2009-07-29 |
| CN100386251C (en) | 2008-05-07 |
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