CN203820233U - Elevator speed governor - Google Patents
Elevator speed governor Download PDFInfo
- Publication number
- CN203820233U CN203820233U CN201420084241.4U CN201420084241U CN203820233U CN 203820233 U CN203820233 U CN 203820233U CN 201420084241 U CN201420084241 U CN 201420084241U CN 203820233 U CN203820233 U CN 203820233U
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- Prior art keywords
- spring
- rope clamping
- side rope
- drawer
- movable side
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- Expired - Fee Related
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Abstract
The utility model relates to an elevator speed governor. On the premise that the speed governor is prevented from becoming large and complex, the stable and reliable entering performance of a movable side rope clamping skid shoe and the clamping performance of a speed governor rope can be guaranteed. According to the embodiment, a clamping spring (26) of a rope clamping mechanism of the speed governor has dual spring characteristics, i.e., low spring constant characteristic in a first compression stroke and a high spring constant characteristic in a second compression stroke, wherein the first compression stroke is a stroke from a position that a movable side rope clamping body (24) touches the speed governor rope (10) and is started to be imported, to an import ending position that the movable side rope clamping body (24) is finally imported to start to clamp the rope along with a fixed side rope clamping body (22), and the second compression stroke is a stroke from a position that the clamping of the speed governor rope (10) is started to a position that the clamping of the speed governor rope (10) is ended.
Description
Technical field
Embodiment of the present utility model relates to elevator governor.
Background technology
Legal provisions must arrange emergency braking device as safety device (the 129th article the 10th of building standard method operational command) in elevator.This emergency braking device starts in the time that the descending speed of car exceedes specified value, thereby automatically prevents the decline of car.
At this, Fig. 7 represents the schematic configuration of the general elevator that is provided with emergency braking device.
In Fig. 7, Reference numeral 2 represents the car of elevator.Reference numeral 4 represents the hoist trunk of elevator.This car 2 is hung by main rope 5, drives according to not shown towing machine, is guided and in hoist trunk 4, is carried out lifting by the guide rail 6 that is located at hoist trunk 4.
Velocity limiter 8 is arranged on Machine Room.On this velocity limiter 8, be provided with and detect the mechanism that the descending speed of car 2 exceedes situation more than specified speed, and in the time that the descending speed of car 2 is more than or equal to command speed for clamping the rope clamping device of the overspeed governor 10 moving with car 2 one.
On car 2, be provided with the safety tongs device 12 of emergent stopping car 2.This safety tongs device 12 is as lower device: when main rope 5 cuts off or when the rotative speed of towing machine extremely causes the descending speed of lift car 2 to be more than or equal to command speed, thereby clamping guide rail 6 mechanically makes car 2 emergent stoppings.
Overspeed governor 10 is wound in annularly and is arranged on the rope sheave 14 of velocity limiter 8 and is configured on the pulley 15 of hoist trunk 4 bottoms.On pulley 15, be hung with counterweight 16.Overspeed governor 10 is attached to the safe connecting rod 18 for start safety tongs device 12 by cable connections portion 17, makes overspeed governor 10 with the lifting direction equidirectional of car 2 and moves with identical speed.
In this elevator emergency stop device, once velocity limiter 8 detects the hypervelocity of car 2 and declines, and clamps overspeed governor 10 by the rope clamping device of following explanation, it is stopped mobile, consequently because safe connecting rod 18 starts safety tongs device 12, thus can emergent stopping car 2.
Then, Fig. 8 represents to be arranged on the rope clamping device in the past of velocity limiter 8.Known this rope clamping device is for example the mechanism that is documented in patent documentation 1.This rope clamping device 20 is made up of following structure: be fixed on the fixation side rope clamping piston shoes 22 on pedestal 21; Drawer at movable side rope clamping piston shoes 24, across overspeed governor 10 and fixation side rope clamping piston shoes 22 arranged opposite; Clamp springs 26, applies regulation Clamping force to these drawer at movable side rope clamping piston shoes 24; Rod unit 28, remains on front end by retainer 27 by drawer at movable side rope clamping piston shoes 24; S. A. 30, waves and keeps freely this rod unit 28.
The direction of principal axis of the rearward end of rod unit 28 and S. A. 30 vertically connects S. A. 30, fixing by jam nut 31.S. A. 30 is provided with spring bracket 32a, 32b, and clamp springs 26 is arranged between spring bracket 32a, 32b, the direction application of force by this elastic force towards extruding drawer at movable side rope clamping piston shoes 24.
In this rope clamping device 20, once the hypervelocity of car 2 be detected by velocity limiter 8, rod unit 28 will be toppled over along the arrow A direction of below, and drawer at movable side rope clamping piston shoes 24 contact with overspeed governor 10.
At this moment, overspeed governor 10 moves along arrow B direction, and the drawer at movable side rope clamping piston shoes 24 that contact with overspeed governor 10 are further directed to below by friction force.Overspeed governor 10 finally clamps by fixation side rope clamping piston shoes 22 and drawer at movable side rope clamping piston shoes 24, thereby the movement of overspeed governor 10 is stopped.
In a series of actions of rope clamping device 20 as above, the hypervelocity of car 2 detected and drawer at movable side rope clamping piston shoes 24 while contacting with overspeed governor 10, very importantly exactly drawer at movable side rope clamping piston shoes 24 are imported to fixation side rope and clamp piston shoes 22 sides.If not reliable importing, overspeed governor 10 cannot clamp by fixation side rope clamping piston shoes 22 and drawer at movable side rope clamping piston shoes 24, and consequently safety tongs device 12 cannot start.
Drawer at movable side rope clamping piston shoes 24 contact with overspeed governor 10, and are easy to enter the performance (hereinafter referred to as entering performance) that clamps piston shoes 22 opposed positions with fixation side rope by this friction force, relevant with following condition.
In Fig. 8, once drawer at movable side rope clamping piston shoes 24 contact overspeed governor 10, between overspeed governor 10 and drawer at movable side rope clamping piston shoes 24, will produce friction force f.This friction force f plays a role as the power that drawer at movable side rope clamping piston shoes 24 are imported downwards.
At this moment, because drawer at movable side rope clamping piston shoes 24 push clamp springs 26, so by the elastic force of compressed clamp springs 26, drawer at movable side rope clamping piston shoes 24 are subjected to clamp springs power P.By clamp springs power P and overspeed governor 10 vertical direction become to be divided into Px, the one-tenth of parallel direction is divided into Py.If the angle of rod unit 28 is made as to θ, friction coefficient is made as μ,
f=μPx=μPcosθ…(1)
Then,, when friction force f is greater than clamp springs power P during with composition Py overspeed governor 10 parallel directions, be
f＞Py=Psinθ…(2)
Condition set up situation.
Therefore,, by formula (1) substitution formula (2), draw
μPcosθ＞Psinθ
μ＞sin6/cosθ=tanθ…(3)
Known according to formula (3), for drawer at movable side rope clamping piston shoes 24 being imported to fixation side rope clamping piston shoes 22 by friction force, can strengthen coefficientoffrictionμ or dwindle drawer at movable side rope clamping piston shoes 24 the angle θ of the rod unit 28 while contacting overspeed governor 10, thus, can improve the performance that enters of drawer at movable side rope clamping piston shoes 24.
Formerly technical literature
Patent documentation
Patent documentation 1: 2005-No. 213037 communiques of TOHKEMY
Utility model content
, if increase friction coefficient by the material etc. that changes drawer at movable side rope clamping piston shoes 24, drawer at movable side rope clamping piston shoes 24 can uprise for the aggressiveness of overspeed governor 10, thereby increase merely friction coefficient and have limitation.
In addition, as running velocity exceedes in the situation of the express elevator that 300m/ divides, the running velocity of overspeed governor 10 also becomes at a high speed, thereby produces the phenomenon of the dynamic friction coefficient value reduction between drawer at movable side rope clamping piston shoes 24 and overspeed governor 10.
Thus, in order to improve the performance that enters of drawer at movable side rope clamping piston shoes 24, compare increase friction coefficient, the angle θ of the rod unit 28 when preferably dwindling as far as possible drawer at movable side rope clamping piston shoes 24 and contacting overspeed governor 10.
But, because overspeed governor clamping device must be configured in the also column pitch of overspeed governor 10, thereby can not expand arbitrarily the radius of rotation of rod unit 28.Like this, if the angle θ of the rod unit 28 while dwindling contact overspeed governor, the stroke of clamp springs 12 also can reduce, the impact of error can be subject to consumingly wearing and tearing, the process and assemble of piston shoes material time etc., and be difficult to continue to produce stable Clamping force, and then the problem such as easily cause that safety tongs device 12 is failure to actuate.
Thus, in order to improve entering performance and guaranteeing stable gripping performance of drawer at movable side rope clamping piston shoes 24 simultaneously, when the angle θ of the rod unit 28 while preferably reducing to contact overspeed governor, the stroke of clamp springs 26 becomes large rope clamping device, but result is to avoid the entirety of velocity limiter to become maximization.
The problem points that the utility model has in view of described conventional art, object is to provide a kind of elevator governor, it can make velocity limiter can not become maximization, complicated, and can be in harmonious proportion the stable and accurate gripping performance that enters performance and overspeed governor of drawer at movable side rope clamping piston shoes.
In order to realize described object, of the present utility model being characterised in that: a kind of elevator governor, it possesses rope clamping device, described rope clamping device is in the time that the descending speed that car detected exceedes specified value, clamp overspeed governor by fixation side rope cramping body and drawer at movable side rope cramping body, described drawer at movable side rope cramping body is arranged on the front end place that can carry out taking S. A. as fulcrum rotating rod unit, and by the clamp springs application of force that produces rope Clamping force, it is characterized in that, described clamp springs possesses dual spring performance, i.e. low spring constant characteristic in the first compression stroke and the high spring constant characteristic in the second compression stroke, wherein, described the first compression stroke is that described drawer at movable side rope cramping body contacts described overspeed governor and starts to be imported into, till be finally fed to the stroke that starts the importing end position that clamps rope together with described fixation side rope cramping body, described the second compression stroke is that described overspeed governor is from starting to be clamped to the stroke till end clamps.
In addition, of the present utility model being characterised in that, described clamp springs is made up of non-linear compression disc spring, described non-linear compression disc spring has relatively low spring constant at described the first compression stroke, and has the high spring constant characteristic of the regulation Clamping force of the described overspeed governor of performance at described the second compression stroke.
In addition, of the present utility model being characterised in that, described clamp springs is made up of the spring of connected the first compression disc spring and the second compression disc spring, described the first compression disc spring has relatively low spring constant and compressed at described the first compression stroke, and described the second compression disc spring is compressed and have a high spring constant of regulation Clamping force of the described overspeed governor of performance at described the second compression stroke.
In addition, of the present utility model being characterised in that, described clamp springs is passed through the multiple disk springs of serial or parallel connection, thereby has described dual spring performance.
Brief description of the drawings
Fig. 1 is the block diagram that represents the elevator governor based on the first embodiment of the present utility model.
Fig. 2 is the front view that represents same elevator governor governor.
Fig. 3 is the block diagram that represents the rope clamping device action in the elevator governor of the first embodiment of the present utility model.
Fig. 4 is illustrated in the elevator governor of the first embodiment of the present utility model, the spring performance of the clamp springs of rope clamping device.
Fig. 5 is the block diagram of the rope clamping device action in the elevator governor representing based on the second embodiment of the present utility model.
Fig. 6 is illustrated in the elevator governor based on the second embodiment of the present utility model, the spring performance of the clamp springs of rope clamping device.
Fig. 7 is the elevator skeleton diagram that is provided with velocity limiter.
Fig. 8 is the lateral plan of the rope clamping device in the elevator governor representing in the past.
Reference numeral
2, car 4, hoist trunk 5, main rope
6, guide rail 8, velocity limiter 10, overspeed governor
12, safety tongs device 14, rope sheave 18, safe connecting rod
20, rope clamping device 22, fixation side rope clamping piston shoes
24, drawer at movable side rope clamping piston shoes 26, clamp springs
28, rod unit 30, S. A. 50, the first compression disc spring
52, the second compression disc spring
Detailed description of the invention
Below, with reference to the accompanying drawing adding, the embodiment based on elevator governor of the present utility model is described.
The first embodiment
Fig. 1 is the block diagram that represents the elevator governor based on the first embodiment of the present utility model, and Fig. 2 is the front view of this velocity limiter.
In Fig. 1, Fig. 2, Reference numeral 40 represents to arrange the pedestal of velocity limiter 8 bodies, the 41st, the pin of pedestal.On pedestal 40, be vertically provided with two boards shape framework 42A, 42B, described two boards shape framework is abreast across predetermined distance.Rope sheave 44 is supported between this framework 42A, 42B by S. A. 45.Overspeed governor 10 is wound on rope sheave 44.
On rope sheave 44, be provided with rotary hammer 46, this rotary hammer 46 is with rope sheave 44 linkage rotations and expand based on centnifugal force.The expansion action of this rotary hammer 46 is adjusted spring 48 by speed and is adjusted, and adjusts the adjustment of spring 48 by this speed, the rotative speed of the rope sheave 44 can set rotary hammer 46 and carry out opening action time.
On velocity limiter 8, be provided with limit switch 49, rotary hammer 46 opened to run into test rod 51 if overspeed governor 10 reaches specified speed, limit switch 50 can start.This signal is sent to control panel, thereby cuts off the main power source of elevator.
Then, car continues to decline, and with the mobile while of overspeed governor 10, the rotative speed of the rope sheave 44 of rotation further increases, and rotary hammer 46 further expands based on centnifugal force, and rope clamping device 20 is moved as follows.
The rope clamping device 20 that is arranged on velocity limiter 8 is described.This rope clamping device 20 is made up of following structure: be fixed on the fixation side rope cramping body 22(of pedestal 40 hereinafter referred to as fixation side rope clamping piston shoes 22); Movable rope clamping assembly 23, possesses across overspeed governor 10 and clamps piston shoes 24 with the drawer at movable side rope cramping body 24(of fixation side rope clamping piston shoes 22 arranged opposite hereinafter referred to as drawer at movable side rope).In the opposed faces of fixation side rope clamping piston shoes 22, drawer at movable side rope clamping piston shoes 24, be formed with the U groove of clamping overspeed governor 10.
In Fig. 2, clamp springs 26 is the springs that apply regulation Clamping force to drawer at movable side rope clamping piston shoes 24.Drawer at movable side rope clamping piston shoes 24 remain on the front end of rod unit 28 by retainer 27.This rod unit 28 is waved freely and is supported by S. A. 30.The direction of principal axis of the rearward end of this rod unit 28 and S. A. 30 vertically connects S. A. 30, prevents from departing from and being fixed by jam nut 31.Rod unit 28 is provided with spring bracket 32a, 32b, and clamp springs 26 is arranged between spring bracket 32a, 32b, the direction application of force by this elastic force towards extruding drawer at movable side rope clamping piston shoes 24.
In such rope clamping device 20, once the hypervelocity of car 2 be detected by velocity limiter 8, as shown in Fig. 3 (a), movable rope clamping assembly 23 can be toppled over along the arrow A direction of below, thereby drawer at movable side rope clamping piston shoes 24 contact with overspeed governor 10.
At this moment, overspeed governor 10 moves along arrow B direction, and the drawer at movable side rope clamping piston shoes 24 that contact with overspeed governor 10 are further directed to below by friction force.As shown in Figure 3 (b), overspeed governor 10 is finally fixed, and side rope clamps piston shoes 22 and drawer at movable side rope clamping piston shoes 24 clamp, thereby stops the movement of overspeed governor 10.
In the rope clamping device of present embodiment, use non-linear compression disc spring as clamp springs 26, the spring constant of this non-linear compression disc spring with respect to amount of compression with nonlinearities change.Thus, Fig. 4 represents the spring performance of clamp springs 26.
This Fig. 4 is expressed as follows the variation of the clamp springs power P in process: topple over from movable rope clamping assembly 23, drawer at movable side rope clamping piston shoes 24 start to contact with overspeed governor 10, drawer at movable side rope clamping piston shoes 24 are fed to parallel with fixation side rope clamping piston shoes 22, until the clamping of overspeed governor 10 finishes.
In this Fig. 4, the spring travel of the clamp springs that gradually reduces 26 is divided into spring-compressed stroke S1, S2.
Spring-compressed stroke S1 is, drawer at movable side rope clamping piston shoes 24 start to contact with overspeed governor 10, clamp springs 26 start compressed and be fed to gradually below, with the reliable state importing after guaranteeing, and arrive the compression stroke before of position (hereinafter referred to as importing release position) that starts to clamp overspeed governor 10 by drawer at movable side rope clamping piston shoes 24 and fixation side rope clamping piston shoes 22.In the scope of this spring-compressed stroke S1, clamp springs 26 has little spring constant, and has the characteristic that clamp springs power P increases gradually along with amount of compression.
On the contrary, spring-compressed stroke S2 refers to, drawer at movable side rope clamping piston shoes 24 are poured onto parallelly with fixation side rope clamping piston shoes 22 from importing release position, start till the compression stroke that firmly clamping finishes from clamping.In the scope of this spring-compressed stroke S2, clamp springs 26 becomes and has large spring constant, and has the characteristic that clamp springs power P sharply increases.
Elevator governor based on present embodiment has structure as above, then, its effect is described.
Once the hypervelocity of car 2 be detected according to velocity limiter 8, as shown in Fig. 3 (a), movable rope clamping assembly 23 can be toppled over along the arrow A direction of below, and drawer at movable side rope clamping piston shoes 24 contact with overspeed governor 10.
As illustrated based on Fig. 8, once drawer at movable side rope clamping piston shoes 24 contact overspeed governor 10, between overspeed governor 10 and drawer at movable side rope clamping piston shoes 24, will produce friction force f.This friction force f plays a role as the power that drawer at movable side rope clamping piston shoes 24 are imported downwards.
Now, suppose to set angle θ and the coefficientoffrictionμ of the rod unit 28 when drawer at movable side rope clamping piston shoes 24 start to contact overspeed governor 10, to meet the condition that by friction force, drawer at movable side rope clamping piston shoes 24 is directed into fixation side rope clamping piston shoes 22
μ＞tanθ…(3)
When being imported into by friction force f due to the drawer at movable side rope clamping piston shoes 24 that contact with overspeed governor 10, push clamp springs 26, so, on drawer at movable side rope clamping piston shoes 24, by the elastic force of compressed clamp springs 26, produce the clamp springs power P pushing to overspeed governor 10.Based on aforesaid formula (2), friction force f is greater than in the situation of clamp springs power P, and drawer at movable side rope clamping piston shoes 24 are imported into, and therefore Py is less, and it is more easily imported into.
In present embodiment, in stroke S1 when the compressed rope of clamp springs 26 enters when importing drawer at movable side rope clamping piston shoes 24, as shown in Figure 4, clamp springs 26 is brought into play the spring performance of base little spring constant, and the clamp springs power P of pushing is reduced to less scope.
Then,, if drawer at movable side rope clamping piston shoes 24 are further toppled over after exceeding importing release position, start to clamp overspeed governor 10 by drawer at movable side rope clamping piston shoes 24 and fixation side rope clamping piston shoes 22.Therebetween, further compression clamp springs 26 of drawer at movable side rope clamping piston shoes 24.Finally, drawer at movable side rope clamping piston shoes 24 are poured onto parallel with fixation side rope clamping piston shoes 22 completely.In this process, the clamp springs power P of compressed clamp springs 26 plays a role as clamping the power of overspeed governor 10.
In present embodiment, when clamping rope, compress in the stroke S2 of clamp springs 26, as shown in Figure 4, clamp springs 26 is brought into play the spring performance based on big spring constant, compared with when entering, greatly increase the clamp springs power P as rope Clamping force, thereby can guarantee the rope Clamping force of regulation.
As mentioned above, in the present embodiment, spring performance when making the clamp springs 26 of drawer at movable side rope clamping piston shoes 24 application of forces possess drawer at movable side rope clamping piston shoes 24 and enter overspeed governor 10 and the spring performance in the time of clamping overspeed governor 10, there is the dual spring performance of different spring performances, thus, without rope clamping device itself, and only keep drawer at movable side rope clamping piston shoes 24 according to the spring performance of clamp springs 26 simultaneously enter performance and rope gripping performance.
The second embodiment
Next,, with reference to figure 5 and Fig. 6, the elevator governor based on the second embodiment of the present utility model is described.
As shown in Figure 5, in the rope clamping device of the velocity limiter based on this second embodiment, using has connected has the first compression disc spring 50 of different spring constants and the clamp springs of the second compression disc spring 52.Fig. 6 represents the spring performance of this clamp springs.
This Fig. 6 represents, topple over and make drawer at movable side rope clamping piston shoes 24 start to contact with overspeed governor 10 from movable rope clamping assembly 23, till drawer at movable side rope clamping piston shoes 24 are fed to and the parallel variation with the clamp springs power P in the process of clamping overspeed governor 10 of fixation side rope clamping piston shoes 22.
In this Fig. 6, the compressed spring travel of clamp springs 26 is divided into spring-compressed stroke S1, S2.
Spring-compressed stroke S1 is, drawer at movable side rope clamping piston shoes 24 start to contact with overspeed governor 10, clamp springs 26 start compressed and be fed to gradually below, the reliable state importing after guaranteeing, and arrive by drawer at movable side rope clamping piston shoes 24 and fixation side rope clamping piston shoes 22 and start to clamp the compression stroke till the position (hereinafter referred to as importing release position) of overspeed governor 10.In the scope of this spring-compressed stroke S1, the first disc spring 50 that forms clamp springs has little spring constant K 1, and has the characteristic that spring force P increases gradually along with amount of compression.
And spring-compressed stroke S2 refers to, drawer at movable side rope clamping piston shoes 24 are poured onto parallel with fixation side rope clamping piston shoes 22 from importing release position, start till the compression stroke that clamping finishes from clamping.In the scope of this spring-compressed stroke S2, the second disc spring 52 that forms clamp springs has big spring constant k2, and has the characteristic that spring force P sharply increases.
Then, the effect of the second embodiment is as constructed as above described.
Once the hypervelocity of car 2 be detected according to velocity limiter 8, as shown in Fig. 5 (a), movable rope clamping assembly 23 can be toppled over along the arrow A direction of below, and drawer at movable side rope clamping piston shoes 24 contact with overspeed governor 10.
Now, same with the first embodiment, angle θ and the coefficientoffrictionμ of the rod unit 28 when drawer at movable side rope clamping piston shoes 24 start to contact overspeed governor 10 are supposed to set, to meet the condition that by friction force, drawer at movable side rope clamping piston shoes 24 is directed into fixation side rope clamping piston shoes 22
μ＞tanθ…(3)。
The drawer at movable side rope clamping piston shoes 24 that contact with overspeed governor 10 are imported into by friction force f, first compression disc spring 50 with little spring COEFFICIENT K 1 of constantly pushing formation clamp springs simultaneously.Preset the spring constant of the first compression disc spring 50 and the second compression disc spring 52, make the second compression disc spring 52 now not compressed.Thus, only by the elastic force of the first compression disc spring 50, on drawer at movable side rope clamping piston shoes 24, produce the clamp springs power P pushing to overspeed governor 10.
In present embodiment, in stroke S1 when the compressed rope of the first compression disc spring 50 enters when drawer at movable side rope clamping piston shoes 24 are imported into, as shown in Figure 6, the spring performance of performance based on little spring COEFFICIENT K 1, the clamp springs power P of pushing is reduced to less scope.
Then,, if drawer at movable side rope clamping piston shoes 24 are further toppled over after exceeding importing release position, start to clamp overspeed governor 10 by drawer at movable side rope clamping piston shoes 24 and fixation side rope clamping piston shoes 22.In this second embodiment, spring travel is set so that the first compression disc spring 50 is importing release position in full compression, and drawer at movable side rope clamping piston shoes 24 compress the second compression disc spring 52 from this moment.
Finally, as shown in Fig. 5 (b), drawer at movable side rope clamping piston shoes 24 are poured onto parallel with fixation side rope clamping piston shoes 22 completely.In this process, the clamp springs power P of compressed the second disc spring 52 plays a role as clamping the power of overspeed governor 10.
In present embodiment, in the time of clamping rope, compress in the stroke S2 of the second compression disc spring 52, as shown in Figure 6, the spring performance of performance based on big spring constant k2, compared with when entering, greatly increase the clamp springs power P as rope Clamping force, thereby can guarantee the rope Clamping force of regulation.
As mentioned above, in the present embodiment, connect the first compression disc spring 50 and the second compression disc spring 52 to form the clamp springs to drawer at movable side rope clamping piston shoes 24 application of forces, so that this clamp springs possesses the dual spring performance that spring performance is different, described the first compression disc spring 50 is drawer at movable side rope clamping piston shoes 24 little disc springs of compressed spring constant while entering overspeed governor, the large disc spring of compressed spring constant when described the second compression disc spring 52 is clamping overspeed governor 10.Thus, without changing rope clamping device itself, and only guarantee according to the spring performance of clamp springs that drawer at movable side rope clamps piston shoes 24 simultaneously enter performance and rope gripping performance.
In addition, in the second embodiment described above, connected two compression disc springs so that it possesses dual spring performance, but also can replace Compress Spring by serial or parallel connection or combined serial and multiple disk spring in parallel, thereby make it possess dual spring performance.
Above, enumerate preferred implementation elevator governor of the present utility model is illustrated, but these embodiments are to propose as example, do not limit the scope of utility model.These new embodiments may be implemented with other various forms, in the scope of main idea that does not depart from utility model, can carry out various omissions, displacement, change.These embodiments or its distortion are not only included in the scope or main idea of utility model, and be also contained in that claim records with utility model and its scope being equal in.
Claims (4)
1. an elevator governor, it possesses rope clamping device, described rope clamping device is in the time that the descending speed that car detected exceedes specified value, clamp overspeed governor by fixation side rope cramping body and drawer at movable side rope cramping body, described drawer at movable side rope cramping body is arranged on the front end place that can carry out taking S. A. as fulcrum rotating rod unit, and by the clamp springs application of force that produces rope Clamping force
It is characterized in that,
Described clamp springs possesses dual spring performance, i.e. low spring constant characteristic in the first compression stroke and the high spring constant characteristic in the second compression stroke, wherein, described the first compression stroke is that described drawer at movable side rope cramping body contacts described overspeed governor and starts to be imported into, till be finally fed to the stroke that starts the importing end position that clamps rope together with described fixation side rope cramping body, described the second compression stroke is that described overspeed governor is from starting to be clamped to the stroke till end clamps.
2. elevator governor according to claim 1, is characterized in that,
Described clamp springs is made up of non-linear compression disc spring, described non-linear compression disc spring has relatively low spring constant at described the first compression stroke, and has the high spring constant characteristic of the regulation Clamping force of the described overspeed governor of performance at described the second compression stroke.
3. elevator governor according to claim 1, is characterized in that,
Described clamp springs is made up of the spring of connected the first compression disc spring and the second compression disc spring, described the first compression disc spring has relatively low spring constant and compressed at described the first compression stroke, and described the second compression disc spring is compressed and have a high spring constant of regulation Clamping force of the described overspeed governor of performance at described the second compression stroke.
4. elevator governor according to claim 1, is characterized in that,
Described clamp springs is passed through the multiple disk springs of serial or parallel connection, thereby has described dual spring performance.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-182289 | 2013-09-03 | ||
| JP2013182289A JP5627050B1 (en) | 2013-09-03 | 2013-09-03 | Elevator governor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203820233U true CN203820233U (en) | 2014-09-10 |
Family
ID=51475753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420084241.4U Expired - Fee Related CN203820233U (en) | 2013-09-03 | 2014-02-26 | Elevator speed governor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5627050B1 (en) |
| CN (1) | CN203820233U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6072324B1 (en) * | 2016-02-18 | 2017-02-01 | 東芝エレベータ株式会社 | Elevator governor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5413727Y2 (en) * | 1973-09-14 | 1979-06-09 | ||
| CH572863A5 (en) * | 1974-06-24 | 1976-02-27 | Inventio Ag | |
| JPS5992883A (en) * | 1982-11-18 | 1984-05-29 | 株式会社東芝 | Governor for elevator |
| JP3061514B2 (en) * | 1993-09-08 | 2000-07-10 | 株式会社東芝 | Governor device for elevator |
| JP3776393B2 (en) * | 2002-10-07 | 2006-05-17 | 三菱電機株式会社 | Elevator governor |
| JP5513646B1 (en) * | 2013-03-08 | 2014-06-04 | 東芝エレベータ株式会社 | Elevator governor |
-
2013
- 2013-09-03 JP JP2013182289A patent/JP5627050B1/en not_active Expired - Fee Related
-
2014
- 2014-02-26 CN CN201420084241.4U patent/CN203820233U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP5627050B1 (en) | 2014-11-19 |
| JP2015048234A (en) | 2015-03-16 |
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