CN2827980Y - Elevator two-way speed limiter without machine room - Google Patents
Elevator two-way speed limiter without machine room Download PDFInfo
- Publication number
- CN2827980Y CN2827980Y CN 200520052191 CN200520052191U CN2827980Y CN 2827980 Y CN2827980 Y CN 2827980Y CN 200520052191 CN200520052191 CN 200520052191 CN 200520052191 U CN200520052191 U CN 200520052191U CN 2827980 Y CN2827980 Y CN 2827980Y
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- speed limiter
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Abstract
A two-way speed limiter of an elevator without a machine room, which relates to the overspeed protection of a car of the elevator without a machine room. The utility model comprises a chain wheel (1), a pressure-regulating device (2), a contact roller (3), a cam (4), a ratchet wheel (5), a brackets (6), a safety switch (7), a speed limiting wheel (8), a pawl device (9) and a travel releasing magnet (10). A shaft (21) is arranged on the bracket (6) of the speed limiter through a bearing (20) and a bearing (14), the speed limiting wheel (8) is arranged on the shaft (21) through a flat key (15) and a shaft sleeve (13) and is fixed between the bracket (6) and a bracket (16) of the speed limiter, and the cam (4) and the ratchet wheel (5) are fixedly arranged on the shaft (21) through nuts, butterfly-shaped springs (17) and pads. The utility model has the effect that the two-way speed limiter of an elevator without a machine room is arranged on a car roof, the space is saved and the utility model belongs to an electric remote unset speed limiter. The utility model has the advantages of stable and reliable performance, simple operation, convenient installation and convenient debugging and the utility model is suitable for the elevator without a machine room. The utility model is used by matching with a bidirectional safety tongs, and the bidirectional overspeed protection of the elevator is realized.
Description
Technical field
The utility model relates to the overspeed protection of machine-roomless lift car.
Background technology
At present, generally be descending action type in China with elevator governor, velocity limiter is installed in the machine room, links to each other with car by the speed limit rope on the speed limited wheel, and the speed limit rope passes to speed limited wheel with cage operation speed, and speed limited wheel is rotated with the up-downgoing campaign of car.When the car downstream rate equals command speed at least, the velocity limiter safety switch is touched, disconnect control circuit, make the braking of hoisting motor and drg dead electricity, descending if car still exceeds the speed limit, when reaching governor tripping speed, velocity limiter produces mechanical action, vises the speed limit rope, makes the safety tongs switch motion by link gear, simultaneously, its braking mechanical mechanism is stuck in car on the guide rail.When counterweight exceeds the speed limit when descending and counterweight when not having safety tongs device, then car can be rushed to summit under overspeed condition, and this is very dangerous equally.Therefore adopt unidirectional velocity limiter to have potential safety hazard.
The utility model content
In order to overcome the phenomenon that existing car can be rushed to summit under overspeed condition, the utility model provides a kind of novel inorganic machine room-free elevator bidirectional speed limiter, with convenient and the supporting use of bidirectional safety tongs, thus the bidirection overspeed protective of realization elevator.
The technical scheme that its technical matters that solves the utility model adopts is: the utility model comprises sprocket wheel, pressure-regulating device, roller, cam, ratchet, support, safety switch, speed limited wheel, pawl device, length of run release magnet.When cage operation, guide rail drives the speed limited wheel rotation, drives ratchet and rotate when speed limited wheel rotates, and when cage operation speed was lower than command speed, the velocity limiter safety switch can not touch, and the ratchet and the ratchet on the ratchet of pawl device can not mesh.When car speed reaches specified value, the velocity limiter safety switch is touched, disconnect control circuit, make the braking of hoisting motor and drg dead electricity, the roller force that cam extruding pawl device is one increases, the ratchet of pawl device is meshed with ratchet on the ratchet, speed limited wheel is forced to stop operating,, if the continuation of car is descending, velocity limiter is connected with the detent box of safety tongs by sprocket wheel, drive the transmission square tube of safety tongs, drive the eccentric shaft of safety tongs by connecting strap, make safety tongs voussoir (slipper) action, car by stop on guide rail.By control apparatus, the responsiveness of scalable velocity limiter.When needing to reset after the velocity limiter action, the car slow reverse can be travelled, the speed limited wheel contrarotation is thrown off the ratchet of pawl device and ratchet, and velocity limiter can reset.Bidirectional speed limiter for elevator is installed on the cab top.
Effect of the present utility model is mounted in car roof, saves the space, and this device belongs to the velocity limiter of electronic remote reset, and it is stable and reliable for performance, manipulates simply, and Installation and Debugging are convenient, is suitable for no machine room and uses.It and the supporting use of bidirectional safety tongs, and realize the bidirection overspeed protective of elevator.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the bidirectional speed limiter structural representation.
Fig. 2 is a bidirectional speed limiter structure A-A cross-sectional schematic
Fig. 3 is a bidirectional speed limiter structure B-B cross-sectional schematic
The specific embodiment of the present utility model is:
The utility model comprises sprocket wheel (1), pressure-regulating device (2), roller (3), cam (4), ratchet (5), support (6), safety switch (7), speed limited wheel (8), pawl device (9), length of run release magnet (10).Axle (21) is installed on the velocity limiter support (6) by bearing (20), bearing (14), speed limited wheel (8) is installed on the axle (21) by flat key (15), axle sleeve (13), and be fixed between velocity limiter support (6) and the support (16), cam (4), ratchet (5) are installed on the I (21) by nut, butterfly spring (17), spacers, and the machine-roomless lift bidirectional speed limiter is installed on the cab top.
When car is descending, guide rail drives speed limited wheel (8) and does the inhour rotation, and a quadrangle disk cam (4) is arranged in the speed limited wheel (8), drives ratchet (5) and rotate when speed limited wheel (8) rotates, in rated speed of rotation, the ratchet on the ratchet of pawl device (9) and the ratchet (5) disengages.When the car hypervelocity reaches specified value, cam (4) faster rotational speed, centnifugal force increases on the circumference, the roller force that cam (4) extruding pawl device is (9) one also increases, when speed is increased to setting valve, the ratchet of pawl device (9) is meshed with ratchet on the ratchet (5), and speed limited wheel (8) is forced to stop operating.Electric safety switch (7) action on the velocity limiter simultaneously disconnects main motor power, if the continuation of car is descending, velocity limiter is by the detent box of sprocket wheel (1) with safety tongs, drive the transmission square tube of safety tongs, drive the eccentric shaft of safety tongs by connecting strap, make safety tongs voussoir (slipper) action, car by stop on guide rail.By control apparatus (2), the responsiveness of scalable velocity limiter.When needing to reset after the velocity limiter action, can car is up at a slow speed by length of run release magnet (10), speed limited wheel (8) contrarotation is thrown off the ratchet of pawl device (9) and ratchet, and velocity limiter can reset.
When car is up, guide rail drives speed limited wheel (8) and makes clickwise, and a quadrangle disk cam (4) is arranged in the speed limited wheel (8), drives ratchet (5) and rotate when speed limited wheel (8) rotates, in rated speed of rotation, the ratchet on the ratchet of pawl device (9) and the ratchet (5) disengages.When the car hypervelocity reaches specified value, cam (4) faster rotational speed, centnifugal force increases on the circumference, the roller force that cam (4) extruding pawl device is (9) one also increases, when speed is increased to setting valve, the ratchet of pawl device (9) is meshed with ratchet on the ratchet (5), and speed limited wheel (8) is forced to stop operating.Electric safety switch (7) action on the velocity limiter simultaneously disconnects main motor power, if the continuation of car is up, velocity limiter is by the detent box interlock of sprocket wheel (1), chain and safety tongs, drive the transmission square tube of safety tongs, drive the eccentric shaft of safety tongs by connecting strap, safety return circuit is cut off in the safety tongs switch motion, makes safety tongs voussoir (slipper) action simultaneously, car by stop on guide rail.By control apparatus (2), the responsiveness of scalable velocity limiter.When needing to reset after the velocity limiter action, can car is descending at a slow speed by length of run release magnet (10), speed limited wheel (8) contrarotation is thrown off the ratchet of pawl device (9) and ratchet, and velocity limiter can reset.
Claims (2)
1, a kind of machine-roomless lift bidirectional speed limiter, comprise sprocket wheel (1), pressure-regulating device (2), roller (3), cam (4), ratchet (5), support (6), safety switch (7), speed limited wheel (8), pawl device (9), length of run release magnet (10), it is characterized in that axle (21) is by bearing (20), bearing (14) is installed on the velocity limiter support (6), speed limited wheel (8) is by flat key (15), axle sleeve (13) is installed on the axle (21), and be fixed between velocity limiter support (6) and the support (16), cam (4), ratchet (5) passes through nut, butterfly spring (17), spacers is installed on the axle (21), and the machine-roomless lift bidirectional speed limiter is installed on the cab top.
2, machine-roomless lift bidirectional speed limiter according to claim 1 is characterized in that being equipped with in the speed limited wheel (8) a quadrangle disk cam (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520052191 CN2827980Y (en) | 2005-10-20 | 2005-10-20 | Elevator two-way speed limiter without machine room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520052191 CN2827980Y (en) | 2005-10-20 | 2005-10-20 | Elevator two-way speed limiter without machine room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2827980Y true CN2827980Y (en) | 2006-10-18 |
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ID=37079538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520052191 Expired - Lifetime CN2827980Y (en) | 2005-10-20 | 2005-10-20 | Elevator two-way speed limiter without machine room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2827980Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830401B (en) * | 2010-05-14 | 2012-01-25 | 中国一冶集团有限公司 | Crane safety mechanism control system |
| CN103264938A (en) * | 2013-05-15 | 2013-08-28 | 宁波欧菱电梯配件有限公司 | Motion testing driving mechanism |
| CN104787640A (en) * | 2015-05-19 | 2015-07-22 | 苏州多美适家用电梯有限公司 | Roller guide shoe triggered elevator speed limiter |
| CN105431368A (en) * | 2013-06-07 | 2016-03-23 | 奥的斯电梯公司 | Hoistway-Efficient Elevator with low overhead and low pit |
| CN108275531A (en) * | 2017-03-27 | 2018-07-13 | 佛山市欧汇电梯配件有限公司 | Machine room bidirectional speed limiter |
| CN111908292A (en) * | 2019-05-08 | 2020-11-10 | 广东非凡教育设备有限公司 | Speed limiter assembly of teaching elevator |
-
2005
- 2005-10-20 CN CN 200520052191 patent/CN2827980Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830401B (en) * | 2010-05-14 | 2012-01-25 | 中国一冶集团有限公司 | Crane safety mechanism control system |
| CN103264938A (en) * | 2013-05-15 | 2013-08-28 | 宁波欧菱电梯配件有限公司 | Motion testing driving mechanism |
| CN105431368A (en) * | 2013-06-07 | 2016-03-23 | 奥的斯电梯公司 | Hoistway-Efficient Elevator with low overhead and low pit |
| CN104787640A (en) * | 2015-05-19 | 2015-07-22 | 苏州多美适家用电梯有限公司 | Roller guide shoe triggered elevator speed limiter |
| CN108275531A (en) * | 2017-03-27 | 2018-07-13 | 佛山市欧汇电梯配件有限公司 | Machine room bidirectional speed limiter |
| CN111908292A (en) * | 2019-05-08 | 2020-11-10 | 广东非凡教育设备有限公司 | Speed limiter assembly of teaching elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20061018 |
|
| EXPY | Termination of patent right or utility model |