CN107324172B - Speed limiter wheel - Google Patents
Speed limiter wheel Download PDFInfo
- Publication number
- CN107324172B CN107324172B CN201610281201.2A CN201610281201A CN107324172B CN 107324172 B CN107324172 B CN 107324172B CN 201610281201 A CN201610281201 A CN 201610281201A CN 107324172 B CN107324172 B CN 107324172B
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- CN
- China
- Prior art keywords
- wheel
- speed limiter
- compression springs
- electromagnet
- elevator car
- 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.)
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Classifications
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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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- 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)
- Braking Arrangements (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a speed limiter wheel. The device comprises a wheel body and a distance measuring ring, wherein the distance measuring ring is fixed on one side surface of the wheel body through a connecting piece; the distance measuring ring is provided with an annular groove at the periphery of the wheel body, at least two compression springs are arranged in the annular groove, and a neutral space for inserting a spindle of an electromagnet is reserved between the end parts of each two compression springs. The number of the compression springs is four, and four neutral positions are reserved. A limiting boss is arranged in the groove corresponding to each neutral position. The annular groove is directly formed in one side face of the wheel body. The invention is applied to the 2015208193642 bidirectional speed limiter with the function of monitoring the accidental movement of the elevator car, and can realize that the elevator car is stopped when the elevator car is actually accidentally moved, so as to avoid the occurrence of false stopping actions.
Description
Technical Field
The present invention relates to a speed limiter wheel for an elevator.
Background
Chinese patent 2015208193642 discloses a bidirectional speed limiter with the function of monitoring unexpected movement of an elevator car, which mainly comprises a bracket, a speed limiter wheel (speed measuring wheel) with a stop block on the side surface, a ratchet wheel with a shifting fork, a braking mechanism triggering component and an interference component capable of interfering with the stop block. The working principle is as follows: when the elevator car accidentally moves, the speed limiter rope can forcedly pull the speed limiter wheel to rotate under the action of friction force, and the rotation of the speed limiter wheel can drive the stop block to move in the circumferential direction and collide with the interference assembly (electromagnetic iron core), so that the shifting fork is pushed to rotate to enable the braking mechanism to act, and the elevator car is manufactured in a power failure mode. However, during the actual running process of the elevator car, there may be a movement in a safety range, and such a movement may easily cause the stop block of the bidirectional speed limiter to collide with the interference component, thereby mismaking the elevator car in power failure.
Disclosure of Invention
The invention aims to provide a speed limiter wheel with an improved structure, which can effectively solve the defect of misoperation of the existing bidirectional speed limiter with the function of monitoring unexpected movement of an elevator car.
In order to achieve the above object, the first technical scheme adopted by the present invention is as follows:
the speed limiter wheel comprises a wheel body and a distance measuring ring, wherein the distance measuring ring is fixed on one side surface of the wheel body through a connecting piece; the distance measuring ring is provided with an annular groove at the periphery of the wheel body, at least two compression springs are arranged in the annular groove, and a neutral space for inserting a spindle of an electromagnet is reserved between the end parts of each two compression springs.
Preferably, the number of the compression springs is four, and four neutral positions are left.
Further, a limit boss is arranged in the groove corresponding to each neutral position.
In order to achieve the above object, a second technical scheme adopted by the present invention is as follows:
the speed limiter wheel comprises a wheel body, wherein an annular groove is formed in the periphery of one side face of the wheel body, at least two compression springs are arranged in the annular groove, and a neutral space for inserting an electromagnet mandrel is reserved between the end parts of each two compression springs.
Preferably, the number of the compression springs is four, and four neutral positions are left.
Further, a limit boss is arranged in the groove corresponding to each neutral position.
By adopting the structure, the invention is applied to the bidirectional speed limiter with the function of monitoring the accidental movement of the elevator car, which is disclosed by 2015208193642, so that the elevator car can be stopped only when the elevator car is actually moved accidentally, and the occurrence of the false stopping action is avoided.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure:
1-wheel body; 2-a ranging ring; 3-an annular groove; 4-compressing the spring; 5-neutral; 6, a limit boss; 7-electromagnet.
The invention will now be described in further detail with reference to the drawings and examples.
Detailed Description
As shown in fig. 1, the speed limiter wheel of the invention is an improvement on the prior commercial speed limiter wheel structure. I.e. one of the sides of the wheel body 1 of the speed limiter wheel is attached with a distance measuring ring 2, which distance measuring ring 2 is fixed to the wheel body 1 by means of a connecting piece, such as a connecting screw. The distance measuring ring 2 is provided with an annular groove 3 at the periphery of the corresponding wheel body 1, four compression springs 4 are arranged in the annular groove 3, and a neutral space 5 is formed between the end parts of every two compression springs 4, so that four neutral spaces 5 are formed; and a limit boss 6 is provided in the annular groove 3 corresponding to each of the neutral spaces 5, which enables the compression spring to be positioned in the annular groove 3.
The working principle of the invention is as follows:
the speed measuring wheel in the bidirectional speed limiter with the function of monitoring the accidental movement of the elevator car disclosed by 2015208193642 is replaced by the speed measuring wheel which is matched with the electromagnet 7 of the interference assembly to act. When the elevator car door is opened, the electromagnet is powered off, the electromagnet mandrel is released and stretches out to prop against one of the compression springs or be inserted into the neutral position. If the elevator car moves at this moment, the wheel body can rotate immediately, because the electromagnet is fixed on the two-way speed limiter frame (motionless), when the stretched electromagnet mandrel just falls into the neutral position, the electromagnet mandrel pushes a spring from the lateral direction to compress until the electromagnet mandrel is completely compressed, and because the speed limiter wheel continues to rotate, the electromagnet mandrel fixed on the frame and the ratchet wheel of the two-way speed limiter swing, after swinging for a certain angle, the speed limiter pull rope pulls the two-way progressive rope gripper connected with the electromagnet mandrel to act, the moving car is stopped, and the minimum moving distance at this moment is required to meet the maximum distance allowed by the door opening and the re-leveling. If the electromagnet core shaft is propped against one of the compression springs, the electromagnet core shaft moves along the annular groove on the surface of the spring (at the moment, the spring is not compressed) until the electromagnet core shaft falls into the next neutral position, and then the spring is compressed repeatedly until the speed limiter pulls the progressive bidirectional rope clamping device to act, so that the elevator car is manufactured (in the situation, the moving distance of the elevator car is larger).
The bidirectional speed limiter can judge whether the car moves in a real sense (mechanical exclusion of the maximum distance of the allowed movement of the door opening and the leveling layer, and the car movement caused by load capacity change, vibration, impact and the like). If the car moves accidentally in a true sense, the moving car can be stopped within the stop distance allowed by the standard.
In addition, in order to ensure that the electromagnet mandrel can effectively compress the spring, an electromagnet can be additionally arranged on the basis of the bidirectional speed limiter structure, the additionally arranged electromagnet and the original electromagnet are arranged side by side, and if one electromagnet fails, the other electromagnet can still execute the action of the compression spring.
In addition, as an improvement, the distance measuring ring is omitted in the process of manufacturing the speed limiter wheel, and an annular groove is directly formed (machined) on one side surface of the wheel body 1 of the speed limiter wheel, so that the technical effect of the invention can be realized.
Claims (6)
1. The speed limiter wheel is applied to a bidirectional speed limiter with an unexpected movement monitoring function of an elevator car, the bidirectional speed limiter comprises a bracket, a ratchet wheel and a braking mechanism triggering component are arranged on the bracket, a shifting fork is arranged on the ratchet wheel and is interlocked with the braking mechanism triggering component, an interference component is arranged on the shifting fork, and the interference component comprises a support, an electromagnet and an electromagnetic iron core; the speed limiter wheel comprises a wheel body and is characterized by further comprising a ranging ring, wherein the ranging ring is fixed on one side surface of the wheel body through a connecting piece; an annular groove is formed in the position, corresponding to the periphery of the wheel body, of the distance measuring ring, at least two compression springs are arranged in the annular groove, and a neutral position for inserting a power supply magnet mandrel is reserved between the end parts of each two compression springs; when the elevator car door is opened, the electromagnet is powered off, and the electromagnetic iron core is released and stretches out to prop against one of the compression springs or is inserted into the neutral gear.
2. A governor wheel according to claim 1, wherein the number of compression springs is four, leaving four neutral spaces.
3. A governor wheel according to claim 1 or claim 2, wherein a limit boss is provided in the recess corresponding to each of the recesses.
4. The speed limiter wheel is applied to a bidirectional speed limiter with an unexpected movement monitoring function of an elevator car, the bidirectional speed limiter comprises a bracket, a ratchet wheel and a braking mechanism triggering component are arranged on the bracket, a shifting fork is arranged on the ratchet wheel and is interlocked with the braking mechanism triggering component, an interference component is arranged on the shifting fork, and the interference component comprises a support, an electromagnet and an electromagnetic iron core; the speed limiter wheel comprises a wheel body and is characterized in that an annular groove is formed in the periphery of one side face of the wheel body, at least two compression springs are arranged in the annular groove, and a neutral position for inserting an electromagnet mandrel is reserved between the end parts of each two compression springs; when the elevator car door is opened, the electromagnet is powered off, and the electromagnetic iron core is released and stretches out to prop against one of the compression springs or is inserted into the neutral gear.
5. A governor wheel according to claim 4, wherein the number of compression springs is four, leaving four neutral spaces.
6. A governor wheel according to claim 4 or claim 5, wherein a limit boss is provided in the recess corresponding to each of the voids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610281201.2A CN107324172B (en) | 2016-04-28 | 2016-04-28 | Speed limiter wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610281201.2A CN107324172B (en) | 2016-04-28 | 2016-04-28 | Speed limiter wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107324172A CN107324172A (en) | 2017-11-07 |
| CN107324172B true CN107324172B (en) | 2023-06-06 |
Family
ID=60192562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610281201.2A Active CN107324172B (en) | 2016-04-28 | 2016-04-28 | Speed limiter wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107324172B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083050A (en) * | 2018-01-08 | 2018-05-29 | 台州富士电梯制造有限公司 | A kind of explosion-proof limiter of speed |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1100211A2 (en) * | 1983-04-27 | 1984-06-30 | Стахановский Филиал Коммунарского Горно-Металлургического Института | Speed limiter for load-handling apparatus |
| CN201380848Y (en) * | 2008-12-31 | 2010-01-13 | 广州市品壹电器科技有限公司 | Incorrect-brake intelligent controlling and braking device monitored by laser or infrared ray |
| CN102387977A (en) * | 2009-04-09 | 2012-03-21 | 三菱电机株式会社 | Elevator governor |
| CN103738808A (en) * | 2014-01-09 | 2014-04-23 | 上海乐天电梯部件有限公司 | Speed governor for triggering elevator safety actuating mechanism or device |
| CN104609276A (en) * | 2015-02-03 | 2015-05-13 | 合肥工业大学 | Elevator speed limiter and control method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353531B (en) * | 2011-07-24 | 2013-06-19 | 宁波华德汽车零部件有限公司 | Flexible coupler device for automobile parts test |
| ES2404487B1 (en) * | 2012-11-13 | 2014-03-14 | Aplicaciones Electromecánicas Gervall, S.A. | Speed limiter system for elevators |
| CN103158754A (en) * | 2013-03-07 | 2013-06-19 | 青岛科技大学 | Vehicle steering wheel limit device |
| CN205061234U (en) * | 2015-10-21 | 2016-03-02 | 刘德民 | Two -way overspeed governor with unexpected function that removes of monitoring elevator car |
| CN205634532U (en) * | 2016-04-28 | 2016-10-12 | 刘德民 | Overspeed governor wheel |
-
2016
- 2016-04-28 CN CN201610281201.2A patent/CN107324172B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1100211A2 (en) * | 1983-04-27 | 1984-06-30 | Стахановский Филиал Коммунарского Горно-Металлургического Института | Speed limiter for load-handling apparatus |
| CN201380848Y (en) * | 2008-12-31 | 2010-01-13 | 广州市品壹电器科技有限公司 | Incorrect-brake intelligent controlling and braking device monitored by laser or infrared ray |
| CN102387977A (en) * | 2009-04-09 | 2012-03-21 | 三菱电机株式会社 | Elevator governor |
| CN103738808A (en) * | 2014-01-09 | 2014-04-23 | 上海乐天电梯部件有限公司 | Speed governor for triggering elevator safety actuating mechanism or device |
| CN104609276A (en) * | 2015-02-03 | 2015-05-13 | 合肥工业大学 | Elevator speed limiter and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107324172A (en) | 2017-11-07 |
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