CN108675079B - Elevator overspeed governor auxiliary device - Google Patents
Elevator overspeed governor auxiliary device Download PDFInfo
- Publication number
- CN108675079B CN108675079B CN201810888450.7A CN201810888450A CN108675079B CN 108675079 B CN108675079 B CN 108675079B CN 201810888450 A CN201810888450 A CN 201810888450A CN 108675079 B CN108675079 B CN 108675079B
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- China
- Prior art keywords
- curved plate
- push rod
- rotating shaft
- electromagnetic push
- elevator
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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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses an elevator speed limiter auxiliary device. The elevator speed monitoring device comprises a central rotating shaft, wherein a rope wheel and a ratchet wheel are installed on the central rotating shaft, a centrifugal hammer, a trigger spring bolt and a pawl are installed on the rope wheel, a first convex rod parallel to the central rotating shaft is arranged on the trigger spring bolt, a second convex rod parallel to the central rotating shaft is arranged on the pawl, the elevator speed monitoring device further comprises a fixed plate, a first crank plate and a second crank plate which are rotatable are arranged on the fixed plate, one end of the first crank plate and one end of the second crank plate are hinged through an electromagnetic push rod, the electromagnetic push rod is electrically connected with a speed monitoring device of an elevator, a guide groove for the movement of the electromagnetic push rod is formed in the fixed plate, and when the electromagnetic push rod moves, the first crank plate is driven to rotate and abut against the first convex rod to enable the trigger spring bolt to release the pawl, and meanwhile, the second crank plate is driven to rotate and abut against the second convex rod to enable the pawl to be embedded into the ratchet wheel.
Description
Technical Field
The invention belongs to the field of elevator speed limiters, and relates to an elevator speed limiter auxiliary device.
Background
Current elevator overspeed governor includes central pivot, installs rope sheave and ratchet in the central pivot, installs centrifugal hammer, trigger spring bolt and pawl on the rope sheave, and its braking principle is: when the action speed of the speed limiter reaches 115% of the rated speed of the elevator, the centrifugal hammer is thrown outwards by centrifugal force to push the trigger lock tongue to act, so that the trigger lock tongue is upwards loosened and releases the pawl, one end of the pawl is acted by the tension spring, rotates around the rotating shaft of the pawl, is pressed downwards in the axis direction and is embedded into the ratchet wheel, and braking is formed.
However, the existing elevator governor has the following problems: 1. the rotating part of the elevator speed limiter is lack of oil for a long time, so that resistance is increased, the tension of a centrifugal hammer return spring is too large, and the like, so that the action of the centrifugal hammer is inflexible, and when the action speed of the speed limiter reaches 115% of the rated speed of the elevator, the centrifugal hammer cannot reach a normal working position, so that a trigger bolt cannot be completely pushed, and the trigger bolt cannot timely release a pawl; 2. the pawl tension spring is failed, because the tension spring is in a stretched working state for a long time, after fatigue failure, the restoring force of the tension spring is insufficient, so that the pawl cannot be completely embedded into the ratchet wheel.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide an elevator governor assisting device.
The invention can be realized by the following technical scheme: the utility model provides an elevator overspeed governor auxiliary device, includes central pivot, installs rope sheave and ratchet on the central pivot, installs centrifugal hammer, triggers spring bolt and pawl on the rope sheave, its characterized in that: the trigger lock is provided with a first convex rod parallel to the central rotating shaft, the pawl is provided with a second convex rod parallel to the central rotating shaft, the trigger lock further comprises a fixing plate parallel to the rope wheel, the fixing plate is provided with a rotatable first curved plate and a rotatable second curved plate, the first curved plate, the second curved plate and the central rotating shaft are coaxial, the first curved plate is located between the first convex rod and the second convex rod and can be abutted to the first convex rod when rotating, the second curved plate is located between the second convex rod and the central rotating shaft and can be abutted to the second convex rod when rotating, one end of the first curved plate is hinged to one end of the second curved plate through an electromagnetic push rod, the electromagnetic push rod is electrically connected with a speed monitoring device of an elevator, the fixing plate is provided with a guide groove for the electromagnetic push rod to move, and the first curved plate is driven to rotate and abut to the first convex rod to enable the trigger lock to release the pawl when the electromagnetic push rod moves, and the second curved plate is driven to rotate and abut to the second convex rod to enable the pawl to be embedded into the ratchet wheel.
Preferably, the middle part of the first curved plate is hinged to the fixed plate through a first rotating shaft, and the middle part of the second curved plate is hinged to the fixed plate through a second rotating shaft.
Preferably, one end of the first curved plate is hinged to one end of the electromagnetic push rod through a third rotating shaft, and one end of the second curved plate is hinged to the other end of the electromagnetic push rod through a fourth rotating shaft.
Preferably, the elevator control device further comprises a control device composed of a single chip microcomputer, the control device is electrically connected with the speed monitoring device of the elevator and the electromagnetic push rod respectively, and the control device controls the electromagnetic push rod to move when receiving an elevator overspeed signal sent by the speed monitoring device.
Preferably, the fixed plate is provided with a laser ranging sensor for monitoring the position change of the centrifugal hammer, and the laser ranging sensor is electrically connected with the control device and used for turning on or off the electromagnetic push rod.
Preferably, the laser ranging sensor is fixedly arranged on the fixing plate, and laser emitted by the laser ranging sensor is perpendicular to the end face of the centrifugal hammer.
Compared with the prior art, the invention has the following beneficial effects:
the invention is characterized in that a first convex rod parallel to a central rotating shaft is arranged on the trigger lock tongue, a second convex rod parallel to the central rotating shaft is arranged on the pawl, the trigger lock tongue further comprises a fixed plate parallel to the rope wheel, a rotatable first curved plate and a rotatable second curved plate are arranged on the fixed plate, the first curved plate can abut against the first convex rod when rotating, the second curved plate can abut against the second convex rod when rotating, one end of the first curved plate and one end of the second curved plate are hinged through an electromagnetic push rod, the electromagnetic push rod is electrically connected with a speed monitoring device of the elevator, when the electromagnetic push rod moves, the first curved plate is driven to rotate and abut against the first convex rod to enable the trigger lock tongue to release the pawl, the situation that the centrifugal hammer cannot reach a normal working position and cannot completely push the trigger lock tongue to cause the situation that the trigger lock tongue cannot release the pawl in time is avoided, meanwhile, the second curved plate is driven to rotate and abuts against the second convex rod to enable the pawl to be embedded into the ratchet wheel, the situation that the pawl cannot be completely embedded into the ratchet wheel due to insufficient restoring force is avoided that the pawl fails.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a right side view of the present invention;
FIG. 3 is a schematic view of the structure of a first curved plate and a second curved plate according to the present invention;
FIG. 4 is a schematic diagram of a laser ranging sensor according to the present invention;
FIG. 5 is a schematic structural view of a fixing plate according to the present invention;
fig. 6 is a schematic structural view of a trigger latch according to the present invention;
fig. 7 is a schematic view of the pawl of the present invention.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
In the present embodiment, the terms "upper", "lower", "left", "right", "front", "rear", "upper end", "lower end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-7, an embodiment of an elevator speed governor assisting device includes a central rotating shaft 1, a sheave 2 and a ratchet 3 are mounted on the central rotating shaft 1, a centrifugal hammer 4, a trigger latch 5 and a pawl 6 are mounted on the sheave 2, a first protruding rod 501 parallel to the central rotating shaft 1 is disposed on the trigger latch 5, a second protruding rod 601 parallel to the central rotating shaft 1 is disposed on the pawl 6, a fixing plate 7 parallel to the sheave 2 is further included, a rotatable first curved plate 8 and a second curved plate 9 are disposed on the fixing plate 7, the first curved plate 8, the second curved plate 9 and the central rotating shaft 1 are coaxial, the first curved plate 8 is disposed between the first protruding rod 501 and the second protruding rod 601, the first curved plate 8 can abut against the first protruding rod 501 when rotating, the second curved plate 9 is disposed between the second protruding rod 601 and the central rotating shaft 1, the second curved plate 9 can abut against the second protruding rod 601 when rotating, one end of the first curved plate 8 and one end of the second curved plate 9 are hinged through an electromagnetic push rod 10, the push rod 10 is electrically connected to a speed monitoring device 701 of the elevator speed governor assisting device, the electromagnetic push rod 701, the second curved plate 9 is electrically connected to the electromagnetic push rod 701, the electromagnetic push rod 6 drives the second curved plate 10 to drive the second protruding rod 601 to move, and drive the second protruding rod 601 to drive the pawl 6 to move, and the electromagnetic push rod 601 to drive the pawl 6 to drive the second protruding rod 501 to move, and the second protruding rod 601 to drive the electromagnetic push rod 601 to drive the pawl 6 to drive the second protruding rod 501 to move, and the pawl 6 to drive the electromagnetic push rod 501 to drive the electromagnetic push rod 601 to drive the pawl 6 to move.
Preferably, the first curved plate 8 is hinged to the fixed plate 7 at the middle part thereof by a first rotating shaft 11, and the second curved plate 9 is hinged to the fixed plate 7 at the middle part thereof by a second rotating shaft 12.
Preferably, one end of the first curved plate 8 is hinged to one end of the electromagnetic push rod 10 through a third rotating shaft 13, and one end of the second curved plate 9 is hinged to the other end of the electromagnetic push rod 10 through a fourth rotating shaft 14.
Preferably, the elevator control device further comprises a control device composed of a single chip microcomputer, the control device is electrically connected with the speed monitoring device of the elevator and the electromagnetic push rod 10 respectively, and the control device controls the electromagnetic push rod 10 to move when receiving an elevator overspeed signal sent by the speed monitoring device.
Preferably, a laser ranging sensor 15 for monitoring the position change of the centrifugal hammer 4 is arranged on the fixing plate 7, and the laser ranging sensor 15 is electrically connected with the control device and used for turning on or off the electromagnetic push rod 10.
Preferably, the laser distance measuring sensor 15 is fixedly arranged on the fixing plate 7, and the laser 1501 emitted by the laser distance measuring sensor 15 is perpendicular to the end surface of the centrifugal weight 4.
The control device of the invention is implemented as follows: when the elevator normally runs, namely the centrifugal hammer 4 is not thrown out, the laser ranging sensor 15 monitors that the distance of the end face of the centrifugal hammer 4 changes into a periodic form, when the centrifugal hammer 4 is thrown out, the amplitude of a periodic curve gradually changes until the periodic curve does not change, and the periodic curve begins to change periodically again, wherein the condition shows that the centrifugal hammer 4 is thrown to the limit position of the centrifugal hammer 4, the amplitude of the limit position of the centrifugal hammer 4 is taken as a first threshold value in a single chip microcomputer control program, and a half of the first threshold value is taken as a second threshold value, namely the centrifugal hammer 4 is thrown out by 50% of the distance;
1. the single chip microcomputer detects that the position variation of the centrifugal hammer 4 reaches a first threshold value, the speed quantity sent by the speed monitoring device of the elevator received by the single chip microcomputer reaches 115% of the rated speed of the elevator, the situation shows that the torsion spring of the spring bolt 5 or the tension spring of the pawl 6 fails to be triggered, and the single chip microcomputer controls the electromagnetic push rod 10 to move; 2. the single chip microcomputer detects that the position variation of the centrifugal hammer 4 reaches a second threshold value, the speed quantity sent by the speed monitoring device of the elevator and received by the single chip microcomputer reaches 115% of the rated speed of the elevator, and the situation shows that the centrifugal hammer 4 cannot move flexibly and fails due to the fact that the tension of a return spring of the centrifugal hammer 4 is too large and the like, and the single chip microcomputer controls the electromagnetic push rod 10 to respond; 3. the speed monitoring device of elevator trouble, the singlechip fails to receive the signal that the speed monitoring device of elevator sent, if the singlechip detects that the position change of centrifugal hammer 4 is periodic variation, explains failing to brake, and the singlechip control electromagnetism push rod 10 motion this moment, if the singlechip detects that the position change of centrifugal hammer 4 is not periodic variation, explains braking.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and those skilled in the art should understand that the technical solutions of the present invention can be modified or substituted with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (4)
1. The utility model provides an elevator overspeed governor auxiliary device, includes central pivot, installs rope sheave and ratchet on the central pivot, installs centrifugal hammer, triggers spring bolt and pawl on the rope sheave, its characterized in that: the trigger lock tongue is provided with a first convex rod parallel to the central rotating shaft, the pawl is provided with a second convex rod parallel to the central rotating shaft, the trigger lock tongue further comprises a fixed plate parallel to the rope wheel, the fixed plate is provided with a rotatable first curved plate and a rotatable second curved plate, the first curved plate, the second curved plate and the central rotating shaft are coaxial, the first curved plate is positioned between the first convex rod and the second convex rod, the first curved plate can be abutted against the first convex rod when rotating, the second curved plate is positioned between the second convex rod and the central rotating shaft, the second curved plate can be abutted against the second convex rod when rotating, one end of the first curved plate is hinged with one end of the second curved plate through an electromagnetic push rod, the electromagnetic push rod is electrically connected with a speed monitoring device of the elevator, the fixed plate is provided with a guide groove for the electromagnetic push rod to move, the electromagnetic push rod drives the first curved plate to rotate and abut against the first convex rod to enable the trigger lock tongue to release the pawl, and simultaneously drives the second curved plate to rotate and abut against the second convex rod to enable the pawl to be embedded into the ratchet wheel;
the middle part of the first curved plate is hinged to the fixed plate through a first rotating shaft, and the middle part of the second curved plate is hinged to the fixed plate through a second rotating shaft;
one end of the first curved plate is hinged to one end of the electromagnetic push rod through a third rotating shaft, and one end of the second curved plate is hinged to the other end of the electromagnetic push rod through a fourth rotating shaft.
2. The elevator governor assisting device according to claim 1, characterized in that: the elevator overspeed monitoring device is characterized by further comprising a control device consisting of a single chip microcomputer, wherein the control device is electrically connected with the speed monitoring device of the elevator and the electromagnetic push rod respectively, and the control device controls the electromagnetic push rod to move when receiving an elevator overspeed signal sent by the speed monitoring device.
3. The elevator governor assisting device according to claim 2, characterized in that: and the fixed plate is provided with a laser ranging sensor for monitoring the position change of the centrifugal hammer, and the laser ranging sensor is electrically connected with the control device and used for starting or closing the electromagnetic push rod.
4. The elevator governor assisting device according to claim 3, characterized in that: the laser ranging sensor is fixedly arranged on the fixing plate, and laser emitted by the laser ranging sensor is perpendicular to the end face of the centrifugal hammer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810888450.7A CN108675079B (en) | 2018-08-07 | 2018-08-07 | Elevator overspeed governor auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810888450.7A CN108675079B (en) | 2018-08-07 | 2018-08-07 | Elevator overspeed governor auxiliary device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108675079A CN108675079A (en) | 2018-10-19 |
| CN108675079B true CN108675079B (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810888450.7A Active CN108675079B (en) | 2018-08-07 | 2018-08-07 | Elevator overspeed governor auxiliary device |
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| Country | Link |
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| CN (1) | CN108675079B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020085558A (en) * | 2001-05-09 | 2002-11-16 | 현대엘리베이터주식회사 | Governor of elevator |
| CN2680636Y (en) * | 2004-03-04 | 2005-02-23 | 河北东方机械厂 | Bidirectional elevator overspeed governor |
| CN1894152A (en) * | 2004-07-22 | 2007-01-10 | 三菱电机株式会社 | Elevator speed limiter |
| CN103010890A (en) * | 2012-12-18 | 2013-04-03 | 上海吉亿电机有限公司 | Speed limiter of elevator |
| EP2771267A1 (en) * | 2011-10-27 | 2014-09-03 | Inventio AG | Speed-limiting means for a lift |
| CN104773628A (en) * | 2015-03-31 | 2015-07-15 | 西继迅达（许昌）电梯有限公司 | Bidirectional speed governor with single brake pressing plate with pawl automatic restoring function |
| CN107473045A (en) * | 2017-08-04 | 2017-12-15 | 佛山市欧汇电梯配件有限公司 | Novel inorganic room bidirectional speed limiter |
| CN207090711U (en) * | 2017-06-29 | 2018-03-13 | 溧阳市飞跃机电有限公司 | A kind of telescopic toeguard |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107021395B (en) * | 2016-01-04 | 2020-11-10 | 奥的斯电梯公司 | Elevator overspeed governor with automatic reset |
-
2018
- 2018-08-07 CN CN201810888450.7A patent/CN108675079B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020085558A (en) * | 2001-05-09 | 2002-11-16 | 현대엘리베이터주식회사 | Governor of elevator |
| CN2680636Y (en) * | 2004-03-04 | 2005-02-23 | 河北东方机械厂 | Bidirectional elevator overspeed governor |
| CN1894152A (en) * | 2004-07-22 | 2007-01-10 | 三菱电机株式会社 | Elevator speed limiter |
| EP2771267A1 (en) * | 2011-10-27 | 2014-09-03 | Inventio AG | Speed-limiting means for a lift |
| CN103010890A (en) * | 2012-12-18 | 2013-04-03 | 上海吉亿电机有限公司 | Speed limiter of elevator |
| CN104773628A (en) * | 2015-03-31 | 2015-07-15 | 西继迅达（许昌）电梯有限公司 | Bidirectional speed governor with single brake pressing plate with pawl automatic restoring function |
| CN207090711U (en) * | 2017-06-29 | 2018-03-13 | 溧阳市飞跃机电有限公司 | A kind of telescopic toeguard |
| CN107473045A (en) * | 2017-08-04 | 2017-12-15 | 佛山市欧汇电梯配件有限公司 | Novel inorganic room bidirectional speed limiter |
Non-Patent Citations (1)
| Title |
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| 马俊文 ; 强劲 ; 李智 ; 金左雨 ; 王玉琳 ; .基于AT89S52单片机的新型电梯限速器.机械工程师.2015,(第12期),第136-138页. * |
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| CN108675079A (en) | 2018-10-19 |
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