CN105923490A - Novel anti-sliding unidirectional speed governor - Google Patents
Novel anti-sliding unidirectional speed governor Download PDFInfo
- Publication number
- CN105923490A CN105923490A CN201610491887.8A CN201610491887A CN105923490A CN 105923490 A CN105923490 A CN 105923490A CN 201610491887 A CN201610491887 A CN 201610491887A CN 105923490 A CN105923490 A CN 105923490A
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- CN
- China
- Prior art keywords
- wheel
- rope sheave
- friction wheel
- friction pulley
- location structure
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
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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
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a novel anti-sliding unidirectional speed governor. A large friction wheel is rotationally assembled on a base of the novel anti-sliding unidirectional speed governor. A small friction wheel is rotationally assembled on a rope wheel. The small friction wheel is rotationally assembled on the rope wheel through a fixing part extending on the peripheral face of the small friction wheel. A torsional spring is arranged between the small friction wheel and the rope wheel. A positioning structure is further rotationally assembled on the portion, above the small friction wheel, on the wheel face of the rope wheel. A positioning torsional spring enabling the positioning structure to rotate towards the fixing part is arranged between the positioning structure and the rope wheel. The positioning structure and the rear end of the fixing part are in elastic jacking fit to enable the small friction wheel to get away from the large friction wheel. A triggering end is arranged on the positioning structure in a protruding manner. A connecting rod pulling a braking pressure plate to press the rope wheel when the large friction wheel and the small friction wheel are engaged is hinged to the large friction wheel. The connecting rod penetrates the braking pressure plate in a clearance manner. The connecting rod is in limiting fit with the two sides of the braking pressure plate. By means of the novel anti-sliding unidirectional speed governor, the large friction wheel and the small friction wheel are adopted for braking, once the rope wheel overspeeds, the two friction wheels can be engaged instantly, and time delay is avoided.
Description
Technical field
The present invention relates to a kind of New Speed Limiter being used in elevator device, particularly relate to a kind of unidirectional limiter of speed, belong to a kind of elevator component.
Background technology
Limiter of speed is the critical component of elevator safety, of the prior art have a kind of such limiter of speed, including base, it is equipped with rope sheave and ratchet by main axis on base, the two ends of main shaft are arranged on base by bearing, rope sheave spline is assemblied on main shaft, and main shaft drives rope sheave to rotate, and is arranged with steel wire rope on rope sheave.The diameter of ratchet is less than the diameter of rope sheave, the wheel face of rope sheave is rotatably equipped with ratchet, torsion spring it is provided with between ratchet and rope sheave, torsion spring is to Pawl Torsion, pawl rotation is made to have the trend of the draw-in groove snap-fit with ratchet all the time, ratchet is in free state when, ratchet and ratchet can be in the state of clamping, rope sheave also rotates and is provided with location structure, location structure has a top pressure side, this pressure side top, top is pressed on ratchet, ratchet is made to be in the normal condition decontroling ratchet, there is between location structure and rope sheave torsion spring, torsion spring provides the power compressing ratchet for location structure, ratchet is made to overcome torsion spring power thereon, keep the state separated with ratchet, two gravity drop hammers also it are rotatably equipped with on rope sheave, ratchet and location structure are in the side of rope sheave, two gravity drop hammers are in the other side of rope sheave.Two gravity drop hammers set-up mode on rope sheave is centrosymmetric mode, the center of rotation of gravity drop hammer is not located at two ends, one end quality of gravity drop hammer more greatly tup end, other end quality is less for hammer handle end, it is provided with compression-spring device between hammer handle end and the rope sheave of one gravity drop hammer, compression-spring device makes the tup end of gravity drop hammer be in the centre of rope sheave, it is connected between the tup portion and the hammer handle portion of another gravity drop hammer of this gravity drop hammer and has pull bar, the two ends of pull bar are hinged with two gravity drop hammers respectively, when rope sheave normal rotation, under the effect of compression-spring device, the tup portion of two gravity drop hammers is at the centre of rope sheave.When rope sheave overspeed operation, under the influence of centrifugal force, two gravity drop hammers can overcome the spring force of compression-spring device to open, and two tups all can turn to the edge of rope sheave, and two hammer handles turn to the center of rope sheave.nullLocation structure has the triggering end through rope sheave，When the tup of gravity drop hammer turns to the outer rim of rope sheave，Top pressure is triggered the triggering end of projection on end by gravity drop hammer，Location structure is made to overcome the power of its torsion spring to rotate，Location structure compresses ratchet，Ratchet is continued to the direction away from ratchet rotate，Increase along with rotation distance，Location structure can decontrol ratchet，Ratchet is stuck with ratchet under the effect of its torsion spring，After location structure decontrols ratchet，Ratchet will be crossed location structure and keep off location structure in turn，Location structure can not be resetted，At this moment，Location structure pushes up pressure ratchet under the effect of torsion spring power，Ratchet is in and the state of ratchet buckle reliably，In this state，It is made persistently to rotate to the direction rotation away from ratchet if moving ratchet，Ratchet will separate with location structure，Location structure is return under the effect of its torsion spring.On base, the side in rope sheave is rotatably equipped with brake press plate, it is provided with connecting rod between side and the wheel face of brake press plate, one end of connecting rod is hinged at brake press plate, the other end of connecting rod is hinged with the wheel face of ratchet, after ratchet and ratchet are fastened togather, ratchet is followed rope sheave and is rotated, and ratchet drives brake press plate to press to rope sheave when rotating by connecting rod, thus realizes the braking of rope sheave.The limiter of speed being suitable in prior art is typically all such limiter of speed, and the ratchet of this limiter of speed needs to forward the position stuck with ratchet to after falling could realize braking, needs the regular hour, it is impossible to brake at any time, has certain limitation.
Summary of the invention
It is an object of the invention to provide a kind of unidirectional limiter of speed of novel anti-running, to provide a kind of novel unidirectional limiter of speed.
nullIn order to realize object above，The present invention adopts the following technical scheme that a kind of unidirectional limiter of speed of novel anti-running，Including base，On base, main axis is provided with rope sheave，One end of main shaft is provided with encoder，It is provided with gravity drop hammer on the wheel face of rope sheave side，The side of base rotates the brake press plate being provided with rope sheave，The big friction wheel coaxial with rope sheave also it is rotatably equipped with on base，Rope sheave opposite side is rotatably equipped with little friction pulley on surface，Little friction pulley is rotated by the fixed part extended on its outer peripheral face and is assemblied on rope sheave，It is provided with between little friction pulley and rope sheave and makes little friction pulley turn to big friction wheel the torsion spring being pressed on big friction wheel，The wheel face of rope sheave is also rotatably equipped with above little friction pulley location structure，The location torsion spring making location structure turn to fixed part it is provided with between location structure and rope sheave，Location structure makes little friction pulley away from big friction wheel with the follower head elastic top press-fit of fixed part，It is convexly equipped with on location structure when the tup of gravity drop hammer turns to the outer rim of rope sheave and makes with gravity drop hammer press-fit location structure overcome the triggering end that location torsion spring power disengages with fixed part，Trigger end to be passed by the space on rope sheave wheel face，It is hinged with on big friction wheel when big friction wheel engages with little friction pulley and pulls brake press plate to make it compress the connecting rod of rope sheave，Connecting rod gap is located on brake press plate，Connecting rod is the most spacing with the both sides of brake press plate to be coordinated.
Offering rectangular channel on the wheel face of described big friction wheel, the bearing of trend of rectangular channel is axial consistent with big friction wheel.
Described little friction pulley is oval, and a longitudinal end of little friction pulley stretches to big friction wheel.
Described connecting rod passes and is arranged with stage clip in the part of brake press plate, and one end of stage clip is pressed on brake press plate, and the other end is pressed on the termination of connecting rod on the top splenium arranged.
The braking of the present invention uses big friction wheel and little friction pulley, once there is hypervelocity in rope sheave, gravity drop hammer will trigger location structure, little friction pulley will fall and be pressed on big friction wheel, two friction pulleys can be engaged moment, not free delay, additionally, the present invention is a kind of brand-new structure, it is provided that a kind of new unidirectional limiter of speed.Simultaneously, main shaft is provided with encoder, elevator is in halted state when, rope sheave also can be in motionless state, once occurring slipping car phenomenon, encoder can detect that the rotation of main shaft, elevator master control system receive after the signal of encoder, traction machine band-type brake can be controlled, prevent elevator from slipping car with this.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention；
Fig. 2 is the rope sheave in Fig. 1, big friction wheel and the installation diagram of little friction pulley；
Fig. 3 is the three-dimensional installation diagram of the rope sheave in Fig. 1, big friction wheel and little friction pulley.
Detailed description of the invention
A kind of embodiment of the unidirectional limiter of speed of novel anti-running, in Fig. 1, Fig. 2 and Fig. 3, it is equipped with rope sheave 2 and big friction wheel 3 by main axis on its base 1, the two ends of main shaft are arranged on base 1 by bearing, one end of main shaft is provided with encoder, rope sheave 2 spline is assemblied on main shaft, and main shaft drives rope sheave 2 to rotate, and is arranged with steel wire rope on rope sheave.nullBig friction wheel 3 is set on main shaft，Not with main axis，The diameter of big friction wheel 3 is less than the diameter of rope sheave 2，Side surface pivots at rope sheave 2 is equipped with little friction pulley 4，Little friction pulley 4 is contained on rope sheave 2 by being extended on fixed part rotation on its outer peripheral face，It is provided with torsion spring between little friction pulley 4 and rope sheave 2，Torsion spring gives little friction pulley 4 torsion，Little friction pulley 4 is made to have the trend turning to big friction wheel 3 all the time，Little friction pulley 4 is in free state when，Under the effect of torsion spring，Little friction pulley 4 can be pressed on big friction wheel 3，Rope sheave 2 also rotates and is provided with location structure 5，Here location structure is identical for the structure of the location structure of ratchet location with prior art，Location structure 5 is on the termination of fixed part，Little friction pulley is made to be in the normal condition away from big friction wheel，Also there is between location structure 5 and rope sheave 2 torsion spring，Torsion spring provides the power in the portion that is fixed for location structure 5，Little friction pulley 4 is made to overcome torsion spring power thereon，Keep the normal condition separated with big friction wheel 3，Two gravity drop hammers 6 also it are rotatably equipped with on rope sheave 2，Little friction pulley 4 and location structure 5 are in the side of rope sheave，Two gravity drop hammers 6 are in the other side of rope sheave 2.Two gravity drop hammers 6 set-up mode on rope sheave is centrosymmetric mode, the center of rotation of gravity drop hammer 6 is not located at two ends, one end quality of gravity drop hammer 6 more greatly tup end, other end quality is less for hammer handle end, it is provided with compression-spring device between hammer handle end and the rope sheave 2 of one gravity drop hammer 6, compression-spring device makes the tup end of gravity drop hammer be in the centre of rope sheave, it is connected between the tup portion and the hammer handle portion of another gravity drop hammer of this gravity drop hammer and has pull bar, the two ends of pull bar are hinged with two gravity drop hammers 6 respectively, when rope sheave 2 normal rotation, under the effect of compression-spring device, the tup portion of two gravity drop hammers 6 is at the centre of rope sheave 2.When rope sheave 2 overspeed operation, under the influence of centrifugal force, two gravity drop hammers 6 can overcome the spring force of compression-spring device to open, and two tups all can turn to the edge of rope sheave 2, and two hammer handles turn to the center of rope sheave.nullTriggering end it is convexly equipped with on location structure 5，Trigger end through rope sheave 2，When the tup of gravity drop hammer turns to the outer rim of rope sheave，Top pressure is triggered end by gravity drop hammer，Location structure is made to overcome the power of its torsion spring to rotate，Location structure 5 compresses little friction pulley 4，Little friction pulley 4 is continued to the direction away from big friction wheel 3 rotate，Increase along with rotation distance，Location structure 5 can decontrol little friction pulley 4，Little friction pulley 4 is pressed on big friction wheel 3 under the effect of its torsion spring，After location structure 5 decontrols little friction pulley 4，Little friction pulley 4 will be crossed location structure 5 and keep off location structure 5 in turn，Location structure 5 can not be resetted，At this moment，Location structure 5 pushes up the little friction pulley 4 of pressure under the effect of torsion spring power，Little friction pulley 4 is in and the state of big friction wheel 3 buckle reliably，In this state，It is made persistently to rotate to the direction rotation away from big friction wheel 3 if moving little friction pulley 4，Little friction pulley 4 will separate with location structure 5，Location structure 5 is return under the effect of its torsion spring，Decontrol little friction pulley 4，Location structure 5 will position with little friction pulley 4.On base 1, the side in rope sheave 2 is rotatably equipped with brake press plate 7, it is provided with connecting rod 8 between side and the wheel face of big friction wheel of brake press plate 7, the other end of connecting rod 8 is hinged with the wheel face of big friction wheel, the slide opening that the other end of connecting rod 8 is offered by the free end of brake press plate 7 passes, connecting rod 8 and slide opening matched in clearance, connecting rod 8 passes and is arranged with stage clip 9 in the part of slide opening, and the top, upper end of stage clip 9 is pressed on the top splenium 10 that the axis of guide is arranged, and the top, lower end of stage clip 9 is pressed on brake press plate 7.Due to connecting rod 8 and slide opening matched in clearance, so, can relatively rotate between connecting rod 8 and brake press plate 7.Here its actually tabular of connecting rod 8, it is round bar in the one end coordinated with brake press plate, connecting rod tabular partial width is more than the diameter of round bar part, so both junctions, plate portion just extends to outside the side face at round bar position, and, the diameter in the hole coordinated with connecting rod on brake press plate is also less than the width of plate portion, so, plate portion has the spacing cooperation in side of brake press plate, and the termination of connecting rod coordinates by stage clip is spacing with the opposite side of brake press plate.
Rectangular channel is offered on the wheel face of big friction wheel, the bearing of trend of rectangular channel is axial consistent with big friction wheel, the groove depth of rectangular channel is to be far smaller than the well width of rectangular channel, and the existence of rectangular channel can increase the friction pulley between big friction wheel with little friction pulley and make both be engaged relatively reliable.
Little friction pulley 4 is oval, and a longitudinal end of little friction pulley 4 is stretched to big friction wheel 3, so be can ensure that size friction pulley can mesh together reliably.
Big friction wheel in the present embodiment is columned, little friction pulley is oval column, both friction pulleys, both occlusions are realized by frictional force, here, after little friction pulley is pressed on big friction wheel, if the torsion spring between little friction pulley and rope sheave causes the little friction pulley to the pressure of big friction wheel to be: F；Coefficient of friction between big friction wheel and little friction pulley is μ；Little friction pulley is respectively as follows: L1 and L2 relative to the center of rotation of rope sheave to tangent line and the normal distance at the point of contact of size friction pulley, so, the occlusion condition of big friction wheel and little friction pulley is: F μ L1 ＞ FL2, i.e. μ L1 ＞ L2, otherwise, size friction pulley will be unable to engagement, then, when size friction pulley engages, it will be appreciated by those skilled in the art that needs meet a upper condition..
Ratchet, ratchet have been changed into big friction wheel and little friction pulley by differing only between the individual event limiter of speed in the present embodiment and individual event limiter of speed of the prior art respectively, and it is just the same with structure.
The present embodiment is according to illustrating of making the present invention, and is not limitation of the invention, and the function in need not appended claims, corresponding structure can be not provided with in other embodiments.
The technical scheme that any technical characteristic to the present invention is carried out obtained by equivalent falls within the scope of protection of the invention.
Claims (4)
- null1. the unidirectional limiter of speed of novel anti-running，Including base，On base, main axis is provided with rope sheave，One end of main shaft is provided with encoder，It is provided with gravity drop hammer on the wheel face of rope sheave side，The side of base rotates the brake press plate being provided with rope sheave，It is characterized in that: on base, be also rotatably equipped with the big friction wheel coaxial with rope sheave，Rope sheave opposite side is rotatably equipped with little friction pulley on surface，Little friction pulley is rotated by the fixed part extended on its outer peripheral face and is assemblied on rope sheave，It is provided with between little friction pulley and rope sheave and makes little friction pulley turn to big friction wheel the torsion spring being pressed on big friction wheel，The wheel face of rope sheave is also rotatably equipped with above little friction pulley location structure，The location torsion spring making location structure turn to fixed part it is provided with between location structure and rope sheave，Location structure makes little friction pulley away from big friction wheel with the follower head elastic top press-fit of fixed part，It is convexly equipped with on location structure when the tup of gravity drop hammer turns to the outer rim of rope sheave and makes with gravity drop hammer press-fit location structure overcome the triggering end that location torsion spring power disengages with fixed part，Trigger end to be passed by the space on rope sheave wheel face，It is hinged with on big friction wheel when big friction wheel engages with little friction pulley and pulls brake press plate to make it compress the connecting rod of rope sheave，Connecting rod gap is located on brake press plate，Connecting rod is the most spacing with the both sides of brake press plate to be coordinated.
- The unidirectional limiter of speed of novel anti-running the most according to claim 1, it is characterised in that: offering rectangular channel on the wheel face of described big friction wheel, the bearing of trend of rectangular channel is axial consistent with big friction wheel.
- The unidirectional limiter of speed of novel anti-running the most according to claim 1 and 2, it is characterised in that: described little friction pulley is oval, and a longitudinal end of little friction pulley stretches to big friction wheel.
- The unidirectional limiter of speed of novel anti-running the most according to claim 3, it is characterized in that: described connecting rod passes and is arranged with stage clip in the part of brake press plate, one end of stage clip is pressed on brake press plate, and the other end is pressed on the termination of connecting rod on the top splenium arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610491887.8A CN105923490A (en) | 2016-06-29 | 2016-06-29 | Novel anti-sliding unidirectional speed governor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610491887.8A CN105923490A (en) | 2016-06-29 | 2016-06-29 | Novel anti-sliding unidirectional speed governor |
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| Publication Number | Publication Date |
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| CN105923490A true CN105923490A (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610491887.8A Pending CN105923490A (en) | 2016-06-29 | 2016-06-29 | Novel anti-sliding unidirectional speed governor |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319550A (en) * | 2000-04-14 | 2001-10-31 | 中国建筑科学研究院建筑机械化研究分院 | Bidirectional speed limiter for elevator |
| CN2517716Y (en) * | 2001-11-23 | 2002-10-23 | 中国建筑科学研究院建筑机械化研究分院 | Wide area elevator governor |
| CN2556178Y (en) * | 2002-07-10 | 2003-06-18 | 李春涛 | Elevator two-way overspeed protective device |
| CN202440201U (en) * | 2012-02-08 | 2012-09-19 | 阳西县电梯配件有限公司 | Bidirectional speed limiter |
| CN104118784A (en) * | 2014-06-09 | 2014-10-29 | 宁波欧菱电梯配件有限公司 | Leveling anti-slip method and device of lift with car |
| CN105217407A (en) * | 2015-10-23 | 2016-01-06 | 西继迅达（许昌）电梯有限公司 | Subtract stroke unidirectional automatic anti-running car speed limiting system |
-
2016
- 2016-06-29 CN CN201610491887.8A patent/CN105923490A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319550A (en) * | 2000-04-14 | 2001-10-31 | 中国建筑科学研究院建筑机械化研究分院 | Bidirectional speed limiter for elevator |
| CN2517716Y (en) * | 2001-11-23 | 2002-10-23 | 中国建筑科学研究院建筑机械化研究分院 | Wide area elevator governor |
| CN2556178Y (en) * | 2002-07-10 | 2003-06-18 | 李春涛 | Elevator two-way overspeed protective device |
| CN202440201U (en) * | 2012-02-08 | 2012-09-19 | 阳西县电梯配件有限公司 | Bidirectional speed limiter |
| CN104118784A (en) * | 2014-06-09 | 2014-10-29 | 宁波欧菱电梯配件有限公司 | Leveling anti-slip method and device of lift with car |
| CN105217407A (en) * | 2015-10-23 | 2016-01-06 | 西继迅达（许昌）电梯有限公司 | Subtract stroke unidirectional automatic anti-running car speed limiting system |
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Application publication date: 20160907 |
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