CN103508291A - Bidirectional overspeed governor provided with automatic anti-slip function and used on elevator without machine room - Google Patents
Bidirectional overspeed governor provided with automatic anti-slip function and used on elevator without machine room Download PDFInfo
- Publication number
- CN103508291A CN103508291A CN201310526198.2A CN201310526198A CN103508291A CN 103508291 A CN103508291 A CN 103508291A CN 201310526198 A CN201310526198 A CN 201310526198A CN 103508291 A CN103508291 A CN 103508291A
- Authority
- CN
- China
- Prior art keywords
- ratchet
- rope sheave
- gravity drop
- hammer
- pawl
- Prior art date
- 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.)
- Pending
Links
Images
Abstract
The invention discloses a bidirectional overspeed governor provided with an automatic anti-slip function and used on an elevator without a machine room. The main shaft of the overspeed governor is rotationally arranged on a base; a rope sheave and a ratchet wheel are mounted on the main shaft in a splined manner; an encoder is mounted on the main shaft; a pawl is rotationally mounted on one side of one surface of the rope sheave; a pawl torsional spring is arranged between the pawl and the rope sheave, and can enable the pawl to turn to the ratchet wheel and be clamped in the clamping groove of the ratchet wheel; a pawl positioning structure is rotationally mounted on the surface of the rope sheave; the jacking end of the pawl positioning structure is in elastic and jacking fit with the pawl; two gravity hammers are rotationally mounted on another side of the surface of the rope sheave; a raised jacking head is arranged at the trigger part of the pawl positioning structure and can coordinate with the power hammers (i.e. the gravity hammers) in a pushing and pressing manner when the hammerheads of the gravity hammers are turned to the outer edge of the rope sheave; a raised lifting release link is arranged on the pawl; the encoder is in transmission connection with a master elevator control system; the master elevator control system is in control connection with an electromagnet. According to the invention, the pawl and the pawl positioning structure do not need manual reset, and the bidirectional overspeed governor can be used in an elevator without machine room.
Description
Technical field
The present invention relates to a kind ofly for limiting the velocity limiter of elevator speed, relate in particular to a kind of two-way machine room automatic anti-running car velocity limiter.
Background technology
Velocity limiter is the critical component of elevator safety, of the prior art have a kind of such bidirectional speed limiter, so-called bidirectional speed limiter is exactly the velocity limiter that can play a role at ascending for elevator with when descending, comprise base, on base, by main shaft, be rotatably equipped with rope sheave and ratchet, the two ends of main shaft are arranged on base by bearing, and rope sheave and ratchet spline are assemblied on main shaft, one end of main shaft is provided with coder, is arranged with steel rope on rope sheave.The diameter of ratchet is less than the diameter of rope sheave, on the wheel face of rope sheave, be rotatably equipped with ratchet, between ratchet and rope sheave, be provided with torsion spring, torsion spring is to ratchet torsion, ratchet is rotated and there is all the time the trend of joining with the draw-in groove card of ratchet, at ratchet in free state, ratchet and ratchet can in clamping state, on the termination of ratchet, convex with a fixture block, two cell wall blocks that the both sides of fixture block can draw-in groove, prevent that ratchet from moving with respect to ratchet on cw and conter clockwise both direction.On rope sheave, also rotate and be provided with ratchet location structure, ratchet location structure has a top pressure side, this pressure side top, top is pressed on ratchet, make ratchet in decontroling the normal condition of ratchet, between ratchet location structure and rope sheave, there is torsion spring, torsion spring provides the power that compresses ratchet for ratchet location structure, make ratchet overcome the torsion spring power on it, the state that maintenance is separated with ratchet, on rope sheave, be also rotatably equipped with two gravity drop hammers, ratchet and ratchet location structure are in a side of rope sheave, and two gravity drop hammers are in an other side of rope sheave.Two gravity drop hammers set-up mode on rope sheave is centrosymmetric mode, the run-on point of gravity drop hammer is not in two ends, one end quality of gravity drop hammer is tup end more greatly, other end quality is less is hammer handle end, between the hammer handle end of a gravity drop hammer and rope sheave, be provided with compression-spring device, compression-spring device makes the tup end of gravity drop hammer be in the centre of rope sheave, between the tup portion of this gravity drop hammer and the hammer handle portion of another gravity drop hammer, be connected with connecting rod, the two ends of connecting rod 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 all in the centre of rope sheave.When rope sheave overspeed operation, under the effect of centnifugal force, the spring force that two gravity drop hammers can overcome compression-spring device opens, and two tups can all can turn to the edge of rope sheave, and two hammer handles turn to the center of rope sheave.On ratchet location structure, there is the trigger unit through rope sheave, when the tup of gravity drop hammer turns to the outer rim of rope sheave, gravity drop hammer is pressed the top being convexly equipped with in trigger unit to top, the power that makes ratchet location structure overcome its torsion spring is rotated, ratchet location structure compresses ratchet, make ratchet continue to rotate to the direction away from ratchet, increase along with rotation distance, ratchet location structure can be decontroled ratchet, ratchet is stuck with ratchet under the effect of its torsion spring, when ratchet location structure is decontroled after ratchet, ratchet will be crossed ratchet location structure and keep off conversely ratchet location structure, ratchet location structure can not be resetted, at this moment, ratchet location structure pushes up under the effect of torsion spring power presses ratchet, make ratchet failure-free be in the state with ratchet buckle, in this state, if move ratchet, make it to the direction away from ratchet, rotate and continue to rotate, ratchet will be separated with ratchet location structure, ratchet location structure is return under the effect of its torsion spring, at this moment decontrol ratchet, ratchet location structure will be located with ratchet.At this moment, ratchet can keep off ratchet location structure conversely, and ratchet location structure can not be resetted, and at this moment, ratchet location structure pushes up under the effect of torsion spring power presses ratchet, makes ratchet failure-free be in the state with ratchet buckle.Rope sheave drives ratchet to rotate by ratchet.Both sides in rope sheave on base are provided with brake plate device, on the slipper of two brake plate devices, be provided with pull bar, one end of pull bar is located on slipper, the side that two slippers are relative with rope sheave is medial surface, another side is lateral surface, in the arranged outside of slipper, has outside spring, and the top, one end of outside spring is pressed on the lateral surface of slipper, the other end of outside spring pushes up on the bulge loop on the termination that is pressed in pull bar, and other one end handing-over of pull bar is on the wheel face of ratchet.When elevator rises, rope sheave rotates toward a direction, and after ratchet and ratchet are fastened togather, ratchet is followed rope sheave and rotated, ratchet drives corresponding slipper to press to rope sheave by a pull bar when rotating, realize the braking of rope sheave, while rising under elevator, rope sheave rotates toward another direction, after ratchet and ratchet are fastened togather, ratchet is followed rope sheave and is rotated, and ratchet drives another corresponding slipper to press to rope sheave by another pull bar when rotating, and realizes the braking of rope sheave.On base, be also provided with electromagnet, when switching on, electromagnet can push up pressure gravity drop hammer, gravity drop hammer is opened, allow ratchet and pawl be fastened togather, realize the forced brake of rope sheave, when elevator breaks down, need to manually realize the braking of rope sheave, at this moment, to electromagnet, energising just can realize the braking of rope sheave.Certainly, when rope sheave rotates hypervelocity, gravity drop hammer also can open, ratchet and pawl is fastened togather, when service personnel overhauls, even if by ratchet anyway, allow ratchet and ratchet when released state, ratchet still cannot return, need to manually overcome torsion spring power and rotate ratchet, make ratchet return and locate with ratchet location structure, in machine-roomless lift, workman cannot carry out the reset of ratchet, has caused this class velocity limiter in machine-roomless lift, to use.
Summary of the invention
The object of this invention is to provide a kind of two-way machine room automatic anti-running car velocity limiter, to solve the problem that in prior art, velocity limiter cannot be used in machine-roomless lift.
In order to realize above object, the present invention adopts following technical scheme: a kind of two-way machine room automatic anti-running car velocity limiter, comprise base, on base, by main shaft, be rotatably equipped with rope sheave and ratchet, the two ends of main shaft are arranged on base by bearing, rope sheave and ratchet spline are assemblied on main shaft, coder is installed on main shaft, both sides in rope sheave on base are provided with brake plate device, in one side of the wheel face of rope sheave, be rotatably equipped with ratchet, between ratchet and rope sheave, be provided with the ratchet torsion spring that the draw-in groove card of ratchet turning ratchet wheel and ratchet is joined, on the wheel face of rope sheave, be also rotatably equipped with ratchet location structure, between ratchet location structure and rope sheave, be provided with location torsion spring, the top pressure side of ratchet location structure and ratchet elastic top force fit, the opposite side of rope sheave wheel face is also rotatably equipped with two gravity drop hammers, on base, be also provided with in energising and push up afterwards the electromagnet of pressing gravity drop hammer that gravity drop hammer is opened, in the trigger unit of ratchet location structure, convex with the top coordinating with power hammer pushing when tup at gravity drop hammer turns to the outer rim of rope sheave, when convexing with hammer handle at gravity drop hammer on described ratchet and turning to the wheel rim of rope sheave, press and make ratchet separated with ratchet and make the lifting reset lever of ratchet location structure and ratchet pawl reset with the hammer handle top of gravity drop hammer, described coder is for being connected with the transmission of elevator master control unit, elevator master control unit is connected with magnet control.
Described rope sheave is hub-like, and lifting reset lever is passed in the space between two spokes of rope sheave.
On the hammer handle of described gravity drop hammer, offer functional hole, described lifting reset lever is passed in functional hole, the hammer handle of gravity drop hammer is pressed with lifting reset masthead by hole wall and the pressure of the top between lifting reset lever of functional hole, and described functional hole has the part of dodging of dodging lifting reset lever.
On the hammer handle of described gravity drop hammer, offer functional hole, described lifting reset lever is passed in functional hole, on the hammer handle of gravity drop hammer, by being located in helicitic texture in functional hole, be fixed with top pinch roller, the hammer handle of gravity drop hammer is pressed with lifting reset masthead and is pressed by the top between top pinch roller and lifting reset lever, and described functional hole has the part of dodging of dodging lifting reset lever.
On ratchet of the present invention, convex with lifting reset lever, when the hammer handle of gravity drop hammer turns to the wheel rim of rope sheave, namely, when gravity drop hammer resets, the hammer handle of gravity drop hammer can push up presses lifting reset lever, ratchet is rotated to the direction away from ratchet, ratchet is separated with ratchet location structure, ratchet is answered and ratchet location structure resets, return normal condition, ratchet is in decontroling the state of ratchet, and ratchet of the present invention and ratchet location structure can automatically reset, do not need manual reset, can be used in machine-roomless lift.
Accompanying drawing explanation
Fig. 1 is the integral structure schematic diagram of the embodiment of the present invention;
Fig. 2 is rope sheave in Fig. 1 and the assembling schematic diagram of ratchet;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the right elevation of Fig. 2;
Fig. 5 is the exploded perspective view of the assembly drowing of rope sheave in Fig. 1 and ratchet;
Fig. 6 is the automatic anti-running car control chart of the applied elevator device of embodiments of the invention.
The specific embodiment
A kind of embodiment of two-way machine room automatic anti-running car velocity limiter, in Fig. 1 ~ 5, so-called bidirectional speed limiter is exactly the velocity limiter that can play a role at ascending for elevator with when descending, on base 1, by main shaft, be rotatably equipped with rope sheave 2 and ratchet 3, the two ends of main shaft are arranged on base 1 by bearing, and rope sheave 2 and ratchet 3 splines are assemblied on main shaft, and it is (not shown that one end of main shaft is provided with coder, its mounting means is like the prior art), on rope sheave 2, be arranged with steel rope.The diameter of ratchet 3 is less than the diameter of rope sheave 2, on the wheel face of rope sheave 2, be rotatably equipped with ratchet 4, between ratchet 4 and rope sheave 2, be provided with torsion spring, torsion spring is to ratchet 4 torsion, ratchet 4 is rotated and there is all the time the trend of joining with the draw-in groove card of ratchet 3, at ratchet 4 in free state, ratchet 4 and the state of ratchet 3 meetings in clamping, on rope sheave 2, also rotate and be provided with ratchet location structure 6, ratchet location structure 6 has a top pressure side, this pressure side top, top is pressed on ratchet 4, make ratchet 4 in decontroling the normal condition of ratchet 3, between ratchet location structure 6 and rope sheave 2, there is torsion spring, torsion spring provides the power that compresses ratchet 4 for ratchet location structure 6, make ratchet 4 overcome the torsion spring power on it, the state that maintenance is separated with ratchet 3, on rope sheave 2, be also rotatably equipped with two gravity drop hammers 5, ratchet 4 and ratchet location structure 6 are in a side of rope sheave 2, two gravity drop hammers 5 are in an other side of rope sheave 2.Two gravity drop hammers 5 set-up mode on rope sheave 2 is centrosymmetric mode, the run-on point of gravity drop hammer 5 is not in two ends, one end quality of gravity drop hammer 5 is tup end more greatly, other end quality is less is hammer handle end, between the hammer handle end of a gravity drop hammer 5 and rope sheave 2, be provided with compression-spring device 11, compression-spring device 11 makes the tup end of gravity drop hammer 5 be in the centre of rope sheave 2, between the tup portion of this gravity drop hammer 5 and the hammer handle portion of another gravity drop hammer 5, be connected with connecting rod 10, connecting rod 10 two ends are hinged with two gravity drop hammers 5 respectively, when rope sheave 2 normal rotation, under the effect of compression-spring device 11, the tup portion of two gravity drop hammers 5 is all in the centre of rope sheave 2.When rope sheave 2 overspeed operation, under the effect of centnifugal force, the spring force that two gravity drop hammers 5 can overcome compression-spring device 11 opens, and two tups can all can turn to the edge of rope sheave 2, and two hammer handles turn to the center of rope sheave 2.On ratchet location structure 6, there is the trigger unit through rope sheave 2, when the tup of gravity drop hammer 5 turns to the outer rim of rope sheave 2, the top being convexly equipped with in trigger unit is pressed on 5 pairs of tops of gravity drop hammer, the power that makes ratchet location structure 6 overcome its torsion spring is rotated, ratchet location structure 6 compresses ratchet 4, make ratchet 4 continue to rotate to the direction away from ratchet 3, increase along with rotation distance, ratchet location structure 6 can be decontroled ratchet 4, ratchet 4 is stuck with ratchet 3 under the effect of its torsion spring, when ratchet location structure 6 is decontroled after ratchet 4, ratchet 4 will be crossed ratchet location structure 6 and keep off conversely ratchet location structure 6, ratchet location structure 6 can not be resetted, at this moment, ratchet location structure 6 pushes up under the effect of torsion spring power presses ratchet 4, make ratchet 4 failure-freies be in the state with ratchet 3 buckles.In this state, if the buckle between contact ratchet 4 and ratchet 3.Making ratchet 4 and ratchet location structure 6 reply top mutually presses, while making ratchet 4 remain on the state separated with ratchet 3, just can move ratchet 4 makes it to the direction away from ratchet 3, rotate and continue to rotate, ratchet 4 will be separated with ratchet location structure 6, ratchet location structure 6 is return under the effect of its torsion spring, at this moment decontrol ratchet 4, ratchet location structure 6 will be located with ratchet 4, and both are returned to initial condition.On base 1, in the both sides of rope sheave 2, be provided with brake plate device, on the slipper of two brake plate devices, be provided with pull bar, one end of pull bar is located on slipper, the side that two slippers are relative with rope sheave 2 is medial surface, another side is lateral surface, in the arranged outside of slipper, has outside spring, and the top, one end of outside spring is pressed on the lateral surface of slipper, the other end of outside spring pushes up on the bulge loop on the termination that is pressed in pull bar, and other one end handing-over of pull bar is on the wheel face of ratchet 3.When elevator rises, rope sheave 2 rotates toward a direction, after ratchet 4 and ratchet 3 are fastened togather, ratchet 3 is followed rope sheave 2 and is rotated, ratchet 3 drives corresponding slipper to press to rope sheave 2 by a pull bar when rotating, realize the braking of rope sheave 2, while rising under elevator, rope sheave 2 rotates toward another direction, after ratchet 4 and ratchet 3 are fastened togather, ratchet 3 is followed rope sheave 2 and is rotated, and ratchet 3 drives another corresponding slipper to press to rope sheave 2 by another pull bar when rotating, and realizes the braking of rope sheave 2.
On ratchet 4, convex with lifting reset lever 7, lifting reset lever 7 is perpendicular to the wheel face of rope sheave 2, the rope sheave 2 is here wheel hub dress, just there iing wheel rim, have core wheel, between core wheel and wheel rim, by spoke, be linked to be an integral body, lifting reset lever 7 is by passing between two spokes, on the hammer handle of gravity drop hammer 5, offer functional hole 9, lifting reset lever 7 is passed after passing between two spokes in functional hole 9 again.On the hammer handle of gravity drop hammer 5, by being located in helicitic texture in functional hole 9, be fixed with top pinch roller 8, when gravity drop hammer 5 resets, namely when the hammer handle of gravity drop hammer 5 turns to the wheel rim of rope sheave 2, top pinch roller 8 can be pressed lifting reset lever 7 in top, namely drive ratchet 4 to make it to the direction away from ratchet 3, rotate and continue to rotate, ratchet 4 will be separated with ratchet location structure 6, ratchet location structure 6 is return under the effect of its torsion spring, at this moment decontrol ratchet 4, ratchet location structure 6 will be located with ratchet 4, both are returned to initial condition, realize automatically reseting of ratchet 4.
Because lifting reset lever 7 is through functional hole 9 on the hammer handle of gravity drop hammer 5, in motion process, lifting reset lever 7 can be with respect to the hammer handle motion of gravity drop hammer 5, so functional hole 9 need to have the part of dodging of dodging lifting reset lever 7, dodging part can be so that lifting reset lever 7 moves freely with respect to gravity drop hammer 5.
Also top pinch roller can be installed in other embodiments, directly by the hole wall top of functional hole, press lifting reset lever.
On base 1, be also provided with electromagnet (not shown, its mounting means and installation site are like the prior art), after energising, electromagnet can push up pressure gravity drop hammer, two gravity drop hammers are opened, namely make the heavier tup of gravity drop hammer turn to the outer rim of rope sheave, realize the forced brake of rope sheave.Fig. 6 is the automatic anti-running car control chart of the applied elevator device of the present embodiment, and in the time of elevator parking, the traction causing due to overload is not enough, the braking force that overload causes is not enough, the steel rope abrasion that elevator maintenance causes not in time or greasy dirt, cause towing machine not enough, or the brake facing wearing and tearing that elevator maintenance causes are not in time excessive, cause braking force deficiency etc. a variety of causes, there will be and slip the phenomenon of car, the car that slips is all when appearing at elevator parking, be arranged on the coder participant of one end of main shaft this time to elevator master control unit signal transmission, namely, once main shaft, rotate to meet and slip spoke part, coder slips the signal of car and is transferred to elevator master control unit with regard to having, elevator master control unit is connected with magnet control, at elevator master control unit, receive slipping after car signal that coder transmits, will control electromagnet energising, realize the forced brake of rope sheave, automatically realize the appearance of anti-running phenomenon.
Claims (4)
1. a two-way machine room automatic anti-running car velocity limiter, comprise base, on base, by main shaft, be rotatably equipped with rope sheave and ratchet, the two ends of main shaft are arranged on base by bearing, rope sheave and ratchet spline are assemblied on main shaft, coder is installed on main shaft, both sides in rope sheave on base are provided with brake plate device, in one side of the wheel face of rope sheave, be rotatably equipped with ratchet, between ratchet and rope sheave, be provided with the ratchet torsion spring that the draw-in groove card of ratchet turning ratchet wheel and ratchet is joined, on the wheel face of rope sheave, be also rotatably equipped with ratchet location structure, between ratchet location structure and rope sheave, be provided with location torsion spring, the top pressure side of ratchet location structure and ratchet elastic top force fit, the opposite side of rope sheave wheel face is also rotatably equipped with two gravity drop hammers, on base, be also provided with in energising and push up afterwards the electromagnet of pressing gravity drop hammer that gravity drop hammer is opened, in the trigger unit of ratchet location structure, convex with the top coordinating with power hammer pushing when tup at gravity drop hammer turns to the outer rim of rope sheave, it is characterized in that: when convexing with hammer handle at gravity drop hammer on described ratchet and turning to the wheel rim of rope sheave, press and make ratchet separated with ratchet and make the lifting reset lever of ratchet location structure and ratchet pawl reset with the hammer handle top of gravity drop hammer, described coder is for being connected with the transmission of elevator master control unit, elevator master control unit is connected with magnet control.
2. two-way machine room automatic anti-running car velocity limiter according to claim 1, is characterized in that: described rope sheave is hub-like, and lifting reset lever is passed in the space between two spokes of rope sheave.
3. two-way machine room automatic anti-running car velocity limiter according to claim 1 and 2, it is characterized in that: on the hammer handle of described gravity drop hammer, offer functional hole, described lifting reset lever is passed in functional hole, the hammer handle of gravity drop hammer is pressed with lifting reset masthead by hole wall and the pressure of the top between lifting reset lever of functional hole, and described functional hole has the part of dodging of dodging lifting reset lever.
4. two-way machine room automatic anti-running car velocity limiter according to claim 1 and 2, it is characterized in that: on the hammer handle of described gravity drop hammer, offer functional hole, described lifting reset lever is passed in functional hole, on the hammer handle of gravity drop hammer, by being located in helicitic texture in functional hole, be fixed with top pinch roller, the hammer handle of gravity drop hammer is pressed with lifting reset masthead and is pressed by the top between top pinch roller and lifting reset lever, and described functional hole has the part of dodging of dodging lifting reset lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310526198.2A CN103508291A (en) | 2013-10-31 | 2013-10-31 | Bidirectional overspeed governor provided with automatic anti-slip function and used on elevator without machine room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310526198.2A CN103508291A (en) | 2013-10-31 | 2013-10-31 | Bidirectional overspeed governor provided with automatic anti-slip function and used on elevator without machine room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103508291A true CN103508291A (en) | 2014-01-15 |
Family
ID=49891801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310526198.2A Pending CN103508291A (en) | 2013-10-31 | 2013-10-31 | Bidirectional overspeed governor provided with automatic anti-slip function and used on elevator without machine room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103508291A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787638A (en) * | 2015-03-31 | 2015-07-22 | 西继迅达（许昌）电梯有限公司 | Bi-directional speed limiter with pawl capable of being reset automatically |
| CN105236234A (en) * | 2015-10-23 | 2016-01-13 | 西继迅达（许昌）电梯有限公司 | Travel-reduced bidirectional speed limiting system capable of preventing car sliding automatically |
| CN105398906A (en) * | 2015-10-23 | 2016-03-16 | 西继迅达（许昌）电梯有限公司 | Stroke-reduction bidirectional speed limiting system provided with bidirectional speed limiter |
| US10442661B2 (en) | 2016-08-01 | 2019-10-15 | Otis Elevator Company | Governor of elevator |
| US10472209B2 (en) | 2016-01-04 | 2019-11-12 | Otis Elevator Company | Elevator overspeed governor with automatic reset |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2611336Y (en) * | 2003-04-09 | 2004-04-14 | 宁波申菱电梯配件有限公司 | Improved two-way governor of elevator |
| CN2804028Y (en) * | 2005-06-01 | 2006-08-09 | 宁波申菱电梯配件有限公司 | Two-way speed limiter of elevator |
| CN101780910A (en) * | 2009-01-15 | 2010-07-21 | 上海摩顿电气有限公司 | Machine-room-less speed limiter for elevator |
| JP4905360B2 (en) * | 2006-05-22 | 2012-03-28 | 三菱電機株式会社 | Elevator governor |
| CN203558665U (en) * | 2013-10-31 | 2014-04-23 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-less automatic anti-slip speed limiter |
-
2013
- 2013-10-31 CN CN201310526198.2A patent/CN103508291A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2611336Y (en) * | 2003-04-09 | 2004-04-14 | 宁波申菱电梯配件有限公司 | Improved two-way governor of elevator |
| CN2804028Y (en) * | 2005-06-01 | 2006-08-09 | 宁波申菱电梯配件有限公司 | Two-way speed limiter of elevator |
| JP4905360B2 (en) * | 2006-05-22 | 2012-03-28 | 三菱電機株式会社 | Elevator governor |
| CN101780910A (en) * | 2009-01-15 | 2010-07-21 | 上海摩顿电气有限公司 | Machine-room-less speed limiter for elevator |
| CN203558665U (en) * | 2013-10-31 | 2014-04-23 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-less automatic anti-slip speed limiter |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787638A (en) * | 2015-03-31 | 2015-07-22 | 西继迅达（许昌）电梯有限公司 | Bi-directional speed limiter with pawl capable of being reset automatically |
| CN105236234A (en) * | 2015-10-23 | 2016-01-13 | 西继迅达（许昌）电梯有限公司 | Travel-reduced bidirectional speed limiting system capable of preventing car sliding automatically |
| CN105398906A (en) * | 2015-10-23 | 2016-03-16 | 西继迅达（许昌）电梯有限公司 | Stroke-reduction bidirectional speed limiting system provided with bidirectional speed limiter |
| CN105398906B (en) * | 2015-10-23 | 2018-07-17 | 西继迅达（许昌）电梯有限公司 | Subtract stroke bidirectional speed limiting system with bidirectional speed limiter |
| CN105236234B (en) * | 2015-10-23 | 2019-03-12 | 西继迅达（许昌）电梯有限公司 | Subtract stroke bidirectional automatic anti-running vehicle speed limiting system |
| US10472209B2 (en) | 2016-01-04 | 2019-11-12 | Otis Elevator Company | Elevator overspeed governor with automatic reset |
| US11155440B2 (en) | 2016-01-04 | 2021-10-26 | Otis Elevator Company | Elevator overspeed governor with automatic reset |
| US11542122B2 (en) | 2016-01-04 | 2023-01-03 | Otis Elevator Company | Elevator overspeed governor with automatic reset |
| US10442661B2 (en) | 2016-08-01 | 2019-10-15 | Otis Elevator Company | Governor of elevator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203865758U (en) | Bidirectional machine-room-less automatic anti-slipping safety speed limiting system | |
| CN103523632A (en) | Bidirectional machine-room-free automatic anti-running vehicle speed limiter of single brake pressing-plate device | |
| CN103508291A (en) | Bidirectional overspeed governor provided with automatic anti-slip function and used on elevator without machine room | |
| CN105217407A (en) | Subtract stroke unidirectional automatic anti-running car speed limiting system | |
| CN203558668U (en) | Two-way machine-room-less automatic anti-slip speed limiter with single brake pressure plate device | |
| CN103508290A (en) | Automatic one-way anti-vehicle slip speed limiter without machine room | |
| CN203558665U (en) | Bidirectional machine-room-less automatic anti-slip speed limiter | |
| CN204549703U (en) | There is the unidirectional automatic anti-running car speed-limiting protection system of ratchet auto-reset function | |
| CN204549699U (en) | There is the two-way automatic anti-running car speed limiter system of ratchet auto-reset function | |
| CN105197717B (en) | The two-way automatic anti-running vehicle speed limiting system of single brake press plate equipped with speed monitoring component | |
| CN203558666U (en) | One-way machine-room-less anti-slip speed limiter | |
| CN204549711U (en) | Ratchet can automatically reset single brake press plate two-way automatic anti-running car speed limiting system | |
| CN203699594U (en) | Both-way machine-room-free automatic anti-slip trolley speed-limiting protection system of single brake pressing plate device | |
| CN204549707U (en) | There is the unidirectional automatic anti-running car velocity limiter of ratchet auto-reset function | |
| CN203558661U (en) | Two-way machine-room-less speed limiter with single brake pressure plate device | |
| CN204549701U (en) | There is the bidirectional speed limiter of single brake press plate device of ratchet auto-reset function | |
| CN203699592U (en) | One-way automatic anti-sliding overspeed governor for machine-room-less lift | |
| CN205099142U (en) | Swift current car overspeed governor is prevented in two -way automation with speed monitoring section | |
| CN103508289A (en) | One-way speed limiter without machine room | |
| CN205257712U (en) | It prevents swift current car speed -limiting system to subtract one -way automation of stroke | |
| CN203558664U (en) | Bidirectional machine-room-less speed limiter | |
| CN203699593U (en) | One-way machine-room-free automatic anti-slip trolley safety speed-limiting system | |
| CN103523628A (en) | Bidirectional machine-room-free speed limiter of single brake pressing-plate device | |
| CN105236234A (en) | Travel-reduced bidirectional speed limiting system capable of preventing car sliding automatically | |
| CN203558804U (en) | Bidirectional machine-room-less anti-slip speed limiter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140115 |