CN105173963A - Elevator car accidental movement control device - Google Patents
Elevator car accidental movement control device Download PDFInfo
- Publication number
- CN105173963A CN105173963A CN201510486232.7A CN201510486232A CN105173963A CN 105173963 A CN105173963 A CN 105173963A CN 201510486232 A CN201510486232 A CN 201510486232A CN 105173963 A CN105173963 A CN 105173963A
- Authority
- CN
- China
- Prior art keywords
- idler wheel
- roller
- support arm
- elevator
- plate
- 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
Landscapes
- Elevator Control (AREA)
Abstract
The invention discloses an elevator car accidental movement control device and relates to traction type elevators. The device is provided with an idler wheel support arm, a support arm positioning plate, an idler wheel set, idler wheel pressing rods, pressing springs, two wedge blocks, an electromagnetic movable arm, an electromagnet, an upper plate, a lower plate, a vertical plate, a reset screw and round rods, wherein the upper plate, the lower plate and the vertical plate constitute a machine base; the two wedge blocks are oppositely and symmetrically fixed in the upper plate and the lower plate of the machine base, the oblique surface of each wedge block is provided with a groove, and the wedge blocks penetrate through holes in the vertical plate and then are fixed to the machine base; the central point of the idler wheel support arm is fixed to the electromagnetic movable arm, the idler wheel support arm is a cross rod, and the left round rod and the right round rod are symmetrically and perpendicularly arranged on the back side of the idler wheel support arm; the round rods are sleeved with shaft holes of the idler wheel set, and the idler wheel set is made to be placed in the grooves in the oblique surfaces of the wedge blocks and positioned; the ends of the idler wheel pressing rods are pressed on the idler wheel set, and elastic force is applied to the idler wheel set by the pressing springs to fix the idler wheel set; the support arm positioning plate is arranged on the bottom of one end of the idler wheel support arm to be used for limiting the downward movement of the idler wheel support arm.
Description
Technical field
The present invention relates to traction elevator, especially relate to a kind of accidental movement of elevator cage amount control device.
Background technology
At present, what the brake mode after traction elevator (hereinafter referred to as elevator) is out of service adopted is after relying on spring force to impose on brake block or liner, compressing be braked parts stop rigidly connected with elevator traction sheave, its feature is the soft braking relying on friction force.This braking force be also elevator out of service after make car keep the power of quiescence.Therefore, about the technical security standard of elevator is all to which proposing requirement, in China for the elevator before putting into operation and annual regular inspection elevator, all must do unloaded up and 125% rated load is descending, whether the power-off test under normal operating speed, check the braking potential of elevator brake and pulling ability to meet the demands thus.But elevator, in real-world operation, often due to the artificial adjustment of retarding spring power or the wearing and tearing of ANOMALOUS VARIATIONS, brake block or gasket contacts or heating carbonization, causes elevator brake ability to decline; In addition, due to decline or the inefficacy of lift towing power, the frictional force between elevator dragging wire rope and traction sheave is caused to reduce or disappear.Light then cause lift car to rush to summit or squat at the end, the heavy then casualty accident causing passenger to be sheared or fall, this kind of elevator accident happens occasionally.
Because elevator accidental movement causes the root of the accident to be, elevator technology safety rate does not limit the issuable amount of movement of elevator out of service, causes existing elevator all not prevent the substantial safety-design of elevator accidental movement.Given this, increase elevator out of service rear there is accidental movement time device that its amount of movement is controlled, restriction elevator accidental movement amount ought to become the essential requirement of elevator.
Chinese patent CN103818794A discloses a kind of fender guard preventing accidental movement of elevator cage.Comprise car monitored control system, first safety relay and the second safety relay, wherein, described car monitored control system is connected to described first safety relay and described second safety relay, described car monitored control system is for monitoring location information and the velocity information of lift car, and described location information and described velocity information are exported to described first safety relay and described second safety relay respectively, described first safety relay and described second safety relay are used for carrying out safety control according to the location information of described lift car and velocity information to lift car.
Chinese patent CN103754726A discloses a kind of devices and methods therefor preventing accidental movement of elevator cage, and described device comprises a controller, a velocity limiter be connected with controller; Controller comprises order circuit, logical circuit and drive circuit, and velocity limiter comprises steel rope clamper and coder; Order circuit is connected with an elevator control panel and logical circuit respectively, in order to obtain elevator operation information to be sent to logical circuit; Logical circuit is connected with drive circuit with coder respectively, in order to receive the cage operation direction and car speed that are inputted by coder, and obtain car acceleration, thus judge whether elevator is in accidental movement according to cage operation direction, car speed and car acceleration, and send a control signal to drive circuit; Drive circuit is connected with steel rope clamper, after receiving control signal, export a drive singal to steel rope clamper; Steel rope clamper, in order to after receiving drive singal, triggers a bidirectional safety tongs and performs an action.
Chinese patent CN104150312A discloses a kind of accidental movement of elevator cage safety guard; comprise transition bracket, bracket component; bracket component is slidably connected on transition bracket; bracket component is provided with transmission shaft; transmission shaft front end is provided with cam; rear end is provided with intermeshing transmission gear; drive motor is connected with the driven wheel engaged with transmission gear; the self-locking roller that can move up and down and cam lay respectively at the left and right sides of guide rail; rotated by each gear transmission band moving cam, finally coordinated by cam and self-locking roller and guide rail is clamped.
Summary of the invention
The object of the invention is to eliminate elevator at rear accidental movement of elevator cage out of service, a kind of accidental movement of elevator cage amount control device that can realize controlling in rear car accidental movement amount out of service elevator is provided.
The present invention is provided with roller supporting arm, hold-down arm locating plate, roller set, roller compression bar, holddown spring, two voussoirs, electromagnet swing arm, electromagnet, upper plate, lower plate, riser, reset screw rod and round bar; Upper plate, lower plate and riser composition support;
In the upper plate that two voussoir reverse symmetry are fixed on support and lower plate, the inclined-plane of voussoir is the inclined-plane of band groove; Be fixed on support through after the hole on riser, the center-point of roller supporting arm is directly fixed on electromagnet swing arm; Roller supporting arm is a cross bar, and the reverse side of roller supporting arm is provided with the pair of right and left round bar of Symmetrical vertical, and round bar supports for the axle of roller set, and the axis hole of roller set is inserted in round bar and roller set is located in the groove making roller set be placed in voussoir inclined-plane; The end of roller compression bar to be pressed in roller set and to impose on elastic force fixed idler whell group by holddown spring; Hold-down arm locating plate is located at bottom roller supporting arm one end, moves down for limiting roller supporting arm.
The invention has the beneficial effects as follows, overcome the existing defect of elevator in itself, thus eliminate in the generation by a kind of high Frequency accident of elevator.
Accompanying drawing explanation
Fig. 1 is the structure composition schematic diagram of the embodiment of the present invention.
Fig. 2 is the structure composition schematic diagram of support of the present invention, roller set, support positioning plates and electromagnet.
Fig. 3 is electric control theory figure of the present invention.
Fig. 4 is the connection diagram of intermediate relay and magnet coil in electric control circuit of the present invention.
Fig. 5 is the connection diagram of elevator safety loop relay in electric control circuit of the present invention, elevator safety loop accidental movement protection switch short circuit button, elevator accidental movement protection switch.
Detailed description of the invention
See Fig. 1 and 2, the embodiment of the present invention is provided with roller supporting arm 1, hold-down arm locating plate 5, roller set 2, roller compression bar 3, holddown spring 4, two voussoir 6, electromagnet swing arm 7, electromagnet 8, upper plate 9, lower plate 10, riser 11, reset screw rod 12, round bar 14 and electric control system; Upper plate 9, lower plate 10 and riser 11 form support.
In the upper plate 9 that two voussoir 6 reverse symmetry are fixed on support and lower plate 10, the inclined-plane of voussoir 6 is the inclined-plane of band groove; Be fixed on support through after the hole on riser 11, the center-point of roller supporting arm 1 is directly fixed on electromagnet swing arm 7; Roller supporting arm 1 is a cross bar, the reverse side of roller supporting arm 1 is provided with the pair of right and left round bar 14 of Symmetrical vertical, round bar 14 supports for the axle of roller set 2, and the axis hole of roller set 2 is inserted in round bar 14 and roller set 2 is located in the groove making roller set 2 be placed in voussoir 6 inclined-plane; The end of roller compression bar 3 to be pressed in roller set 2 and to impose on elastic force fixed idler whell group 2 by holddown spring 4; Hold-down arm locating plate 5 is located at bottom roller supporting arm 1 one end, moves down for limiting roller supporting arm 1.Electric control system is electrically connected with electromagnet 8 grade respectively.
After completing assembling of the present invention, sedan-chair top upper beam (or bottom girder at the bottom of sedan-chair) the former car being arranged on elevator is led boots position and fixes, and adjusts two idler wheel surfaces and cage guide 13 gap to evenly, finally car is led boots and be loaded on above the present invention.Controlling electromagnet actuating signal of the present invention is connected in series given by following signal: (this signal is given by two amount of moving up and down control sensor be installed in hoistway for the car accidental movement amount signal set after elevator signal out of service, brake coil dead electricity signal and Elevator Stop, upper and lower two inductors are arranged on elevator car top, the a distance on both sides outside the leveling inductor plate of its installation site respectively when when Elevator landing and in the former hoistway of elevator, and utilize leveling inductor plate to trigger its action.Elevator accidental movement amount is generally set between 15 ~ 30mm.) (referring to Fig. 3)
When electromagnet action, electromagnet swing arm drive roller supporting arm outwards movement makes roller depart from axle support, roller moves along holddown spring force direction and contacts with cage guide face under the effect of roller compression bar, now, no matter car slip on continuing or under slip, the tangential force produced between idler wheel surface tangent line and guide pass is forced to voussoir by making the roller on wherein one side, and make it between car guide rail and voussoir, to produce enough horizontal compressions by roller, stop car continues smooth.And electromagnet action put in place after while cut off the power circuit of elevator safety loop and electromagnet self coil.
Reset after action of the present invention, first manual depression has neither part nor lot in the roller of having an effect makes it depart from and the contact of guide rail (precession of reset screw rod can be utilized when manually depressing to back down).Then, operate elevator under inspecting state with action reversed crawl of the present invention to the roller getaway of having an effect.Again the axle on roller supporting arm is supported and insert roller axis hole.Pin short circuit button and short circuit the present invention can access the accidental movement protection switch of elevator safety loop, inspection operation elevator, to flat bed place, unclamps short circuit button, connects electromagnet action location switch and elevator accidental movement protection switch.
When elevator selects inspecting state to run, the action of maintenance cut-off switch, cuts off this device control loop.
In Fig. 3 ~ 5; respectively be labeled as: K1 elevator signal switch out of service; K2 brake coil dead electricity signal switch, K3.1, K3.2 car accidental movement amount signal switch, K4 electromagnet action location switch; K5 overhauls cut-off switch; K6 elevator accidental movement protection switch, KM intermediate relay, YA magnet coil; JY elevator safety loop relay, SB elevator safety loop accidental movement protection switch short circuit button.
Control car accidental movement amount signal of the present invention also can be obtained by elevator encoder; Control electromagnet action of the present invention to realize by intermediate relay, the mode also by microcomputer logic programming realizes.For elevator brake, the present invention occurs that braking force declines or lost efficacy, when causing accidental movement of elevator cage, can not yet enter at a high speed at elevator or carry out the stop of controlled amount of movement before overspeed condition to lift car; This device declines for lift towing power or lost efficacy, and when causing accidental movement of elevator cage, can not yet enter at a high speed at elevator or carry out the stop of controlled amount of movement before overspeed condition to lift car.
Claims (1)
1. accidental movement of elevator cage amount control device, be provided with electric control system, it is characterized in that being provided with roller supporting arm, hold-down arm locating plate, roller set, roller compression bar, holddown spring, two voussoirs, electromagnet swing arm, electromagnet, upper plate, lower plate, riser, reset screw rod and round bar; Upper plate, lower plate and riser composition support;
In the upper plate that two voussoir reverse symmetry are fixed on support and lower plate, the inclined-plane of voussoir is the inclined-plane of band groove; Be fixed on support through after the hole on riser, the center-point of roller supporting arm is directly fixed on electromagnet swing arm; Roller supporting arm is a cross bar, and the reverse side of roller supporting arm is provided with the pair of right and left round bar of Symmetrical vertical, and round bar supports for the axle of roller set, and the axis hole of roller set is inserted in round bar and roller set is located in the groove making roller set be placed in voussoir inclined-plane; The end of roller compression bar to be pressed in roller set and to impose on elastic force fixed idler whell group by holddown spring; Hold-down arm locating plate is located at bottom roller supporting arm one end, moves down for limiting roller supporting arm; Electric control system is electrically connected with electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510486232.7A CN105173963A (en) | 2015-08-10 | 2015-08-10 | Elevator car accidental movement control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510486232.7A CN105173963A (en) | 2015-08-10 | 2015-08-10 | Elevator car accidental movement control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105173963A true CN105173963A (en) | 2015-12-23 |
Family
ID=54896516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510486232.7A Pending CN105173963A (en) | 2015-08-10 | 2015-08-10 | Elevator car accidental movement control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105173963A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105460728A (en) * | 2016-01-15 | 2016-04-06 | 任世良 | Protecting device for preventing elevator car from moving accidentally at parking floor position |
| CN107055253A (en) * | 2017-03-14 | 2017-08-18 | 厦门升通电梯有限公司 | With the elevator accidental movement amount control device for buffering gradable braking |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006077243A1 (en) * | 2005-01-21 | 2006-07-27 | Wittur Ag | Braking or interception device for a lift cabin |
| CN202829204U (en) * | 2012-05-13 | 2013-03-27 | 安徽丰海起重设备制造有限公司 | High-reliability lift cage anti-drop safety device |
| CN203428678U (en) * | 2013-08-21 | 2014-02-12 | 上海微频莱机电科技有限公司 | Safety protection mechanism for accident movement of lift car |
| CN203865758U (en) * | 2014-02-24 | 2014-10-08 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-less automatic anti-slipping safety speed limiting system |
| CN104326325A (en) * | 2014-10-22 | 2015-02-04 | 厦门升通电梯有限公司 | Traction type elevator slip limiting device |
| CN204873336U (en) * | 2015-08-10 | 2015-12-16 | 厦门升通电梯有限公司 | Unexpected amount of movement controlling means of elevator car |
-
2015
- 2015-08-10 CN CN201510486232.7A patent/CN105173963A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006077243A1 (en) * | 2005-01-21 | 2006-07-27 | Wittur Ag | Braking or interception device for a lift cabin |
| CN202829204U (en) * | 2012-05-13 | 2013-03-27 | 安徽丰海起重设备制造有限公司 | High-reliability lift cage anti-drop safety device |
| CN203428678U (en) * | 2013-08-21 | 2014-02-12 | 上海微频莱机电科技有限公司 | Safety protection mechanism for accident movement of lift car |
| CN203865758U (en) * | 2014-02-24 | 2014-10-08 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-less automatic anti-slipping safety speed limiting system |
| CN104326325A (en) * | 2014-10-22 | 2015-02-04 | 厦门升通电梯有限公司 | Traction type elevator slip limiting device |
| CN204873336U (en) * | 2015-08-10 | 2015-12-16 | 厦门升通电梯有限公司 | Unexpected amount of movement controlling means of elevator car |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105460728A (en) * | 2016-01-15 | 2016-04-06 | 任世良 | Protecting device for preventing elevator car from moving accidentally at parking floor position |
| CN107055253A (en) * | 2017-03-14 | 2017-08-18 | 厦门升通电梯有限公司 | With the elevator accidental movement amount control device for buffering gradable braking |
| CN107055253B (en) * | 2017-03-14 | 2022-08-05 | 厦门升通电梯有限公司 | Elevator accidental movement amount control device with buffer gradable braking function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102674108B (en) | Electronic control brake device for elevator cage | |
| US9546074B2 (en) | Elevator apparatus including an anomalous acceleration detecting mechanism | |
| CN102120539B (en) | Electromagnetic wedge-shaped bidirectional rope gripper | |
| CN104724565B (en) | Elevator stopping device with trigger mechanism | |
| CN202643033U (en) | Electronic control elevator car braking device | |
| CN103086226B (en) | Lifting equipment speed measurement braking safety system | |
| CN106516933A (en) | Electrodynamic type safety tong device and brake method of electrodynamic type safety tong device | |
| CN104828669A (en) | Elevator car braking device | |
| CN103935858B (en) | A kind of traction machine brake automatic detection device | |
| CN102367131A (en) | Clamping wire rope type protection device for preventing cage from accidently moving | |
| JP2012180204A (en) | Elevator apparatus | |
| CN204737537U (en) | Domestic terraced nimble formula safety tongs link gear | |
| CN105173963A (en) | Elevator car accidental movement control device | |
| CN102092615B (en) | Speed limiter with electromagnetic brake and photoelectric encoder | |
| CN203806898U (en) | Elevator speed limiter | |
| CN104326325B (en) | Traction elevator limit slip device | |
| CN204873336U (en) | Unexpected amount of movement controlling means of elevator car | |
| CN204038796U (en) | A kind of elevator based on force feedback and escalator brake monitor control mechanism | |
| CN205772613U (en) | Rope brake | |
| CN209052235U (en) | A kind of lift car hypervelocity or it is overweight when brake apparatus | |
| CN216512249U (en) | Elevator load test safety arrangement | |
| CN102275796A (en) | Emergency braking device clamped on traction wheel of traction machine | |
| CN205998798U (en) | Compact rope brake | |
| CN204237390U (en) | A kind of traction elevator limit slip device | |
| CN206606885U (en) | A kind of band buffers the elevator accidental movement amount control device of gradable braking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151223 |