CN111824895B - Unexpected protection device that removes of car - Google Patents
Unexpected protection device that removes of car Download PDFInfo
- Publication number
- CN111824895B CN111824895B CN201910300438.4A CN201910300438A CN111824895B CN 111824895 B CN111824895 B CN 111824895B CN 201910300438 A CN201910300438 A CN 201910300438A CN 111824895 B CN111824895 B CN 111824895B
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- Prior art keywords
- roller
- linkage
- car
- unexpected
- protection device
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- 230000033001 locomotion Effects 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 238000001179 sorption measurement Methods 0.000 description 19
- 238000000034 method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- WHGYBXFWUBPSRW-FOUAGVGXSA-N beta-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO WHGYBXFWUBPSRW-FOUAGVGXSA-N 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—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
-
- 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
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention belongs to the technical field of elevators, and particularly relates to an unexpected movement protection device for a lift car, which comprises a detection trigger assembly and an emergency brake, wherein the detection trigger assembly is arranged on the lift car, the detection trigger assembly comprises a roller, a transmission part and a linkage part, the roller is used for being matched with a guide rail to induce the movement state of the lift car, the transmission part is used for triggering the emergency brake, the linkage part in a power-off state is used for linkage connection of the roller and the transmission part, and when the lift car is in unexpected movement, the roller rotates the linkage transmission part to trigger the emergency brake. The unexpected removal protection device of car of this embodiment can realize the power-off mechanical action of device in the unexpected removal protection, compares traditional electron device and detects safelyr, still can protect the unexpected removal of car after the elevator outage simultaneously.
Description
Technical Field
The invention belongs to the technical field of elevators, and particularly relates to an accidental movement protection device for a car.
Background
The unexpected movement of the car means movement of the car away from the landing without instruction in the unlocking area and in the door-opened state. Namely, the unexpected movement protection device for the car is required to protect the unexpected movement of the car in the unlocking area. UCMP is unexpected removal protection device of car promptly, sets up on the elevator, mainly used system stops the car, and the unexpected removal of elevator car who leaves the landing under the state of opening the door in the district of unblanking, if unexpected removal appears in elevator car, the unexpected removal protection device of elevator car starts the protection, stops elevator car system, prevents that the passenger from receiving the injury that the unexpected removal of car caused when business turn over elevator car, has increased a safety guarantee for the passenger.
Most of the existing accidental movement protection devices mainly rely on photoelectric switches or speed limiters at elevator landing doors, encoders in traction wheels and other electrons as detection triggers, UCMP problems are solved through indirect protection of traction machine brakes, detection control chains are long, links are large, direct detection and safety protection are not performed, accidental movement is avoided in a power-off state, and safety is at a certain risk.
Therefore, there is a need in the art for a most direct detection and protection method, and at the same time, the method can protect the unexpected movement of the car after solving the power failure state of the elevator.
Disclosure of Invention
Based on the defects in the prior art, the invention provides a car accidental movement protection device.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides an unexpected protection device that removes of car, includes detects trigger assembly and emergency brake, detect trigger assembly and install on the elevator car, detect trigger assembly includes gyro wheel, drive division and linkage portion, the gyro wheel is used for cooperating with the guide rail in order to respond to car motion state, drive division is used for triggering emergency brake, and the linkage portion that is in the outage state is used for being connected gyro wheel and drive division linkage, and when the car is in unexpected removal, gyro wheel rotation linkage drive division is in order to trigger emergency brake.
Preferably, the linkage part is provided with an electromagnet and a linkage mechanism, and the linkage mechanism links the roller and the transmission part when the electromagnet is powered off.
Preferably, the transmission part is a transmission wheel.
Preferably, the driving wheel and the roller are positioned on the same axis.
As a preferable scheme, the linkage mechanism comprises a magnetic absorption part and a spring part, wherein the spring part is arranged between the magnetic absorption part and the driving wheel, and when the electromagnet is powered off, the spring part pushes the magnetic absorption part to be matched with the roller for linkage with the driving wheel.
Preferably, when the spring member pushes the magnetic attraction member to be matched with the roller, the magnetic attraction member is in friction connection with the roller to form a linkage driving wheel.
As a preferable scheme, the magnetic suction piece is a magnetic chuck, and the magnetic chuck and the driving wheel are coaxially arranged.
Preferably, the emergency brake comprises a lifting mechanism and a bidirectional safety clamp.
Preferably, the roller is internally provided with a mechanical speed limiting structure and/or an electronic speed limiting structure.
Preferably, the electronic speed limiting structure is provided with an encoder.
Compared with the prior art, the invention has the beneficial effects that: the unexpected removal protection device of car of this embodiment can realize the power-off mechanical action of device in the unexpected removal protection, compares traditional electron device and detects safelyr, still can protect the unexpected removal of car after the elevator cuts off the power supply suddenly simultaneously.
Drawings
Fig. 1 is a schematic view of the overall structure of a car unexpected movement protection device according to a first embodiment of the present invention;
Fig. 2 is a schematic view showing the overall structure of the back side of the car unexpected movement protection device according to the first embodiment of the present invention;
Fig. 3 is a schematic side view of an unexpected car movement protection device according to a first embodiment of the present invention;
fig. 4 is a schematic view of an explosion structure of a car accidental movement protection device according to a first embodiment of the present invention;
Wherein: A. a guide rail; B. an emergency brake; 1. a roller; 2. a driving wheel; 3. a linkage part; 31. an electromagnet; 32. a magnetic adsorption disk; 33. a spring member; 34. and a guide shaft.
Detailed Description
In order to more clearly illustrate the present invention, specific embodiments thereof will be described below with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the invention, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
Embodiment one:
As shown in fig. 1-4, the unexpected car movement protection device of this embodiment is used for unexpected car movement protection, including detecting trigger assembly and emergency brake B, detect trigger assembly and install on the elevator car, including gyro wheel 1 and drive portion, gyro wheel 1 matches with guide rail a, drives gyro wheel 1 and guide rail a friction when the car moves, thereby gyro wheel 1 rotates the motion state that responds to the car, and drive portion connects emergency brake B like: a lifting rod connected with the safety tongs or a lifting mechanism with lifting force; the linkage part 3 is arranged between the roller 1 and the transmission part, the roller 1 and the transmission part are connected in a linkage mode when the power is off, at the moment, if the car moves, the roller 1 can be driven to rotate so as to link the transmission part to act, and after the detection distance is exceeded, the transmission part acts to trigger the emergency brake B to brake the elevator car, so that accidental movement of the car is protected.
Specifically, the transmission part is a transmission wheel 2, the position of the wheel disc surface of the transmission wheel 2 close to the edge is fixedly connected with a lifting rod of the emergency brake B through bolts, the transmission wheel 2 and the roller 1 are arranged on the same axis and are connected through bearings, and when the elevator car moves normally, the roller 1 and the transmission wheel 2 are not linked. The linkage part 3 comprises an electromagnet 31 and a linkage mechanism, the linkage mechanism comprises a magnetic adsorption piece and a spring piece 33, the magnetic adsorption piece can be adsorbed by the electromagnet 31 in a power-on state, the magnetic adsorption piece adopts a magnetic adsorption disc 32 coaxially arranged with the driving wheel 2, the magnetic adsorption disc 32 is connected with the driving wheel 2 through a plurality of spring pieces 33, so that the magnetic adsorption disc 32 can move between the driving wheel 2 and the roller 1 and is connected and linked with the driving wheel 2; preferably, the magnetic adsorption disc 32 is connected with the driving wheel 2 through a plurality of guide shafts 34, the magnetic adsorption disc 32 can move in the guide direction of the guide shafts 34 and is connected and linked with the driving wheel 2, and the spring piece 33 is arranged on the guide shafts 34, so that the movement of the magnetic adsorption disc 32 is more stable and the connection and linkage of the magnetic adsorption disc 32 and the driving wheel 2 are more stable.
In the normal motion state of the elevator car, the electromagnet 31 is in a power-on state, the magnetic adsorption disc 32 is adsorbed, the spring piece 33 is in a compressed state, and at the moment, the roller 1 is in a normal synchronous motion state with the elevator car, and the driving wheel 2 does not act. When the elevator control system receives a signal that the elevator needs to monitor unexpected movement, for example, when an elevator landing door is opened, the electromagnet 31 is controlled to be powered off, or when the elevator is suddenly powered off, the electromagnet 31 is powered off, at the moment, the attraction force of the electromagnet 31 to the magnetic attraction disc 32 disappears, under the elastic force of the spring piece 33, the magnetic attraction disc 32 is pushed to the roller 1, and pressure exists between the magnetic attraction disc 32 and the roller 1 so as to be in contact with the roller 1 for friction connection, if the elevator moves, the roller 1 can correspondingly perform induction rotation, under the action of friction force, the magnetic attraction disc 32 is linked with the rotation of the driving wheel 2, and the driving wheel 2 then acts on other safety protection devices such as a lifting safety tongs lifting rod or a triggering lifting mechanism to carry out emergency braking on the elevator car so as to realize unexpected movement protection on the elevator car. After the unexpected movement fault of the elevator is recovered, or after the elevator is powered on, the elevator control system controls the electromagnet 31 to be powered on, the magnetic absorption part is absorbed by the electromagnet 31 to be separated from the cooperation with the roller 1, the spring is compressed, and the unexpected movement protection device of the elevator car is automatically reset to an unactuated state. The magnitude of the friction force matched between the magnetic adsorption disc 32 and the roller 1 and the resetting effect can be adjusted by adjusting the elastic force of the spring; preferably, friction-increasing treatments are applied to the surface of the magnetic chuck 32 and/or to the contact surface with the roller 1, such as: a frosted surface is used, friction protrusions are additionally arranged, and the like; the triggering travel of the accidental movement of the car of the accidental protection device of the car can be adjusted by adjusting the travel of the lifting mechanism.
The roller 1 can be internally provided with a mechanical speed limiting structure and/or an electronic speed limiting structure, the mechanical speed limiting structure is a centrifugal device, the electronic speed limiting device is an electronic speed limiting structure, such as a photoelectric rotary encoder, a magnetic encoder and the like, the encoder can detect the motion state of the elevator car when the roller 1 rotates, for example, the running speed, the acceleration, the deceleration, the position, the movement distance and the like can further judge that the electromagnet 31 is controlled to be powered off to brake and protect the elevator car when the elevator running state is abnormal, and the electronic speed limiting structure can also be used as a speed limiter when the elevator car is accidently protected.
The application is to say that the power interruption state linkage part 3 links the roller 1 and the transmission part 2, and the power interruption state refers to the power interruption of the elevator control system to the unexpected movement protection device of the elevator car or the power interruption of the elevator system under the condition that the landing door is not locked and the elevator door is not closed.
The unexpected removal protection device of car of this embodiment can realize the power-off mechanical action of device in the unexpected removal protection, compares traditional electron device and detects safelyr, still can protect the unexpected removal of car after the elevator cuts off the power supply suddenly simultaneously.
Embodiment two:
the present embodiment is different from the first embodiment in that:
The linkage part can be replaced by other power-off action linkage parts, such as a spring, so that the power-off action linkage part can be contracted and released. In contrast to the first embodiment, the specific structure of the linkage part is not limited.
Other structures may be referred to in embodiment one.
Embodiment III:
the present embodiment is different from the first embodiment in that:
The magnetic adsorption disc can be replaced by a magnetic adsorption block, the driving wheel is connected with the magnetic adsorption block through a plurality of guide shafts and is provided with a spring piece, and when the electromagnet is powered off, the spring piece pushes the magnetic adsorption block to the rolling wheel to link the driving wheel. In contrast to the first embodiment, the specific structure of the magnetic attachment is not limited.
Other structures may be referred to in embodiment one.
Embodiment four:
the present embodiment is different from the first embodiment in that:
the driving wheel and the roller are not arranged on the same axis, and can be driven by a driving piece capable of changing the driving direction through gears and the like. In contrast to the first embodiment, the specific position of the driving wheel is not limited.
The transmission wheel can be replaced by other transmission parts which can act as left and right transmission parts, such as a transmission rod, a transmission shaft and the like, through transmission of different transmission parts. In contrast to the first embodiment, the specific structure of the transmission portion is not limited.
Other structures may be referred to in embodiment one.
Fifth embodiment:
the present embodiment is different from the first embodiment in that:
The linkage mechanism can be a permanent magnet, the repelling surface of the permanent magnet and the electromagnet is arranged on one side of the roller facing the driving wheel, a friction plate and a magnetic adsorption piece are arranged on the electromagnet or omitted, the permanent magnet is repelled when the electromagnet is electrified, at the moment, the driving wheel and the roller are not linked, and when the electromagnet is in power failure, the permanent magnet adsorbs an electromagnet iron core, and the roller is in adsorption contact with the surface of the electromagnet to be matched with the linkage driving wheel. In contrast to the first embodiment, the specific structure of the link mechanism is not limited.
Other structures may be referred to in embodiment one.
Example six:
the present embodiment is different from the first embodiment in that:
the mechanical speed limiting structure and/or the electronic speed limiting structure can be omitted, and compared with the first embodiment, the structure is simplified.
Other structures may be referred to in embodiment one.
Embodiment seven:
the present embodiment is different from the first embodiment in that:
The spring member may be other structures having spring properties, such as a gas spring and a hydraulic spring, and the specific structure of the spring member is not limited to the first embodiment.
Other structures may be referred to in embodiment one.
Example eight:
the present embodiment is different from the first embodiment in that:
The magnetic absorption piece is matched with the roller, a groove is formed in the roller, a protrusion is arranged on the magnetic absorption piece, when the electromagnet is powered off, the magnetic absorption piece is pressed against the roller, the protrusion is matched with the groove to abut against, and the like, so that the driving wheel is driven to abut against to be linked instead of friction to drive the driving wheel to be linked. In contrast to the first embodiment, the mating structure between the magnetic attachment and the roller is not limited.
Other structures may be referred to in embodiment one.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is only illustrative of the preferred embodiments and principles of the present invention, and changes in specific embodiments will occur to those skilled in the art upon consideration of the teachings provided herein, and such changes are intended to be included within the scope of the invention as defined by the claims.
Claims (4)
1. The accidental movement protection device for the elevator car comprises a detection triggering component and an emergency brake, and is characterized in that the detection triggering component is arranged on the elevator car and comprises a roller, a transmission part and a linkage part, wherein the roller is used for being matched with a guide rail to sense the movement state of the elevator car, the transmission part is used for triggering the emergency brake, the linkage part in a power-off state is used for linkage connection of the roller and the transmission part, and when the elevator car is in accidental movement, the roller rotates the linkage transmission part to trigger the emergency brake;
The linkage part is provided with an electromagnet and a linkage mechanism, and the linkage mechanism links the roller with the transmission part when the electromagnet is powered off;
the transmission part is a transmission wheel;
The driving wheel and the roller are positioned on the same axis;
The linkage mechanism comprises a magnetic absorption part and a spring part, wherein the spring part is arranged between the magnetic absorption part and the driving wheel, and when the electromagnet is powered off, the spring part pushes the magnetic absorption part to be matched with the roller for linkage with the driving wheel;
The emergency brake comprises a lifting mechanism and a safety clamp;
the roller is internally provided with a mechanical speed limiting structure and/or an electronic speed limiting structure.
2. The car unexpected movement protection device according to claim 1, wherein the magnetic attachment is frictionally coupled to the roller to couple the drive wheel when the spring member urges the magnetic attachment to mate with the roller.
3. The unexpected car movement protection device according to claim 2, wherein the magnetic suction member is a magnetic chuck, and the magnetic chuck is coaxially arranged with the driving wheel.
4. An unexpected car movement protection device according to claim 1 wherein said electronic speed limiting structure has an encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910300438.4A CN111824895B (en) | 2019-04-15 | 2019-04-15 | Unexpected protection device that removes of car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910300438.4A CN111824895B (en) | 2019-04-15 | 2019-04-15 | Unexpected protection device that removes of car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111824895A CN111824895A (en) | 2020-10-27 |
| CN111824895B true CN111824895B (en) | 2024-06-04 |
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ID=72914224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910300438.4A Active CN111824895B (en) | 2019-04-15 | 2019-04-15 | Unexpected protection device that removes of car |
Country Status (1)
| Country | Link |
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| CN (1) | CN111824895B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602932B (en) * | 2021-09-29 | 2022-01-11 | 杭州沪宁电梯部件股份有限公司 | Car monitoring devices and vertical conveying equipment |
| CN114888825B (en) * | 2022-05-25 | 2024-03-08 | 中清德镧智能机器人(浙江)有限公司 | Anti-falling live working robot |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008007289A (en) * | 2006-06-30 | 2008-01-17 | Hitachi Ltd | Safety device of elevator |
| CN102092608A (en) * | 2009-12-11 | 2011-06-15 | 株式会社日立制作所 | Elevator with high electronization safety device |
| CN102275796A (en) * | 2011-06-01 | 2011-12-14 | 苏州通润驱动设备股份有限公司 | Emergency braking device clamped on traction wheel of traction machine |
| EP2535304A1 (en) * | 2011-06-17 | 2012-12-19 | Schneider Aufzugstechnik GmbH | Device for preventing uncontrolled cabin movement |
| CN203428680U (en) * | 2013-08-21 | 2014-02-12 | 上海微频莱机电科技有限公司 | Protection mechanism for accident movement of lift car |
| CN206108586U (en) * | 2016-10-09 | 2017-04-19 | 苏州东奥德森电梯有限公司 | Prevent unexpected control system who removes of elevator car |
| CN206142596U (en) * | 2016-09-05 | 2017-05-03 | 宁波奥德普电梯部件有限公司 | Car accidental movement protective device |
| CN210001370U (en) * | 2019-04-15 | 2020-01-31 | 杭州沪宁电梯部件股份有限公司 | protection device for accidental movement of car |
-
2019
- 2019-04-15 CN CN201910300438.4A patent/CN111824895B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008007289A (en) * | 2006-06-30 | 2008-01-17 | Hitachi Ltd | Safety device of elevator |
| CN102092608A (en) * | 2009-12-11 | 2011-06-15 | 株式会社日立制作所 | Elevator with high electronization safety device |
| CN102275796A (en) * | 2011-06-01 | 2011-12-14 | 苏州通润驱动设备股份有限公司 | Emergency braking device clamped on traction wheel of traction machine |
| EP2535304A1 (en) * | 2011-06-17 | 2012-12-19 | Schneider Aufzugstechnik GmbH | Device for preventing uncontrolled cabin movement |
| CN203428680U (en) * | 2013-08-21 | 2014-02-12 | 上海微频莱机电科技有限公司 | Protection mechanism for accident movement of lift car |
| CN206142596U (en) * | 2016-09-05 | 2017-05-03 | 宁波奥德普电梯部件有限公司 | Car accidental movement protective device |
| CN206108586U (en) * | 2016-10-09 | 2017-04-19 | 苏州东奥德森电梯有限公司 | Prevent unexpected control system who removes of elevator car |
| CN210001370U (en) * | 2019-04-15 | 2020-01-31 | 杭州沪宁电梯部件股份有限公司 | protection device for accidental movement of car |
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| Publication number | Publication date |
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| CN111824895A (en) | 2020-10-27 |
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