CN204897286U - Elevator arresting gear - Google Patents
Elevator arresting gear Download PDFInfo
- Publication number
- CN204897286U CN204897286U CN201520683844.0U CN201520683844U CN204897286U CN 204897286 U CN204897286 U CN 204897286U CN 201520683844 U CN201520683844 U CN 201520683844U CN 204897286 U CN204897286 U CN 204897286U
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- elevator
- car
- electromagnet
- brake
- connecting rod
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- Cage And Drive Apparatuses For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses an elevator arresting gear, including doppler's laser tacho sensor, two brake magnet, two first connecting rods and two safety tongss, wherein, two brake magnet fix respectively on boots are led on two upper portions of car, and the sensor generator of laser doppler velocity measurement sensor is fixed on the crossbeam at elevartor shaft top, and the sensor receiver is fixed on the crossbeam on elevator car upper portion, and the laser doppler velocity measurement sensor is used for controlling the guide rail that two brake magnet absorption correspond, two first connecting rod settings are in the car both sides, and the upper portion of every first connecting rod articulates on a brake magnet, and the lower part articulates on the movable voussoir that corresponds a safety tongs. The utility model discloses can accurately monitor out elevator car's speed change and timely brakeing the car to reach the mesh that makes elevator braking in time under the state of emergency protect personnel's safety.
Description
Technical field:
The utility model belongs to elevator technology field, especially relates to a kind of brake device for elevator.
Background technology:
At present, man lift has been widely used in urban skyscraper, wherein elevator car safety elevator governor-safety tongs linkage is a requisite part in elevator protection device, it whether exceedes setting value by the speed of monitoring car, thus determine whether action makes elevator brake, when the speed of car exceedes 115% of rated speed of lift, velocity limiter speed limited wheel stops operating, wire holder damp governor wheel rope simultaneously, when car declines further, wheel rope affects the connecting rod mechanism be connected on safety tongs to make safety tongs action, thus reach the object of braking.But there is following defect in existing elevator governor-safety tongs linkage:
1, test the speed inaccurate.On the one hand, the detection of elevator car speed moves speed limited wheel by speed limited wheel rope band to rotate, when elevator speed reaches 115% of rated speed of lift, speed limited wheel action, because this cover mechanism is by mechanical drive, the operation condition of speed limited wheel is within the specific limits, and therefore test the speed inaccuracy; On the other hand, when speed limited wheel rope surface is containing greasy dirt or speed limited wheel wearing and tearing, speed limited wheel rope tensile force will be caused not enough, speed limited wheel rope will skid on speed limited wheel, at this moment car speed will can not accurately embody in the rotation of speed limited wheel, when speed reaches preset value, velocity limiter can not actv. action;
2, the tractive force of speed limited wheel rope is not enough.When speed limit race and wire holder wearing and tearing, or when greasy dirt is contained on the surface of speed limited wheel rope, wire holder insufficient clamping force will be caused, speed limited wheel rope will slide on speed limited wheel, when car speed reaches higher limit, it is mobile that wire holder can not make speed limited wheel rope stop immediately, and now the tractive force of speed limited wheel rope can not make safety tongs action effectively.
Utility model content:
The purpose of this utility model is the deficiency in order to overcome existing elevator governor-safety tongs linkage, provides a kind of brake device for elevator.
For achieving the above object, the utility model adopts following technical scheme to realize:
A kind of brake device for elevator, comprises laser Doppler velocimetry sensor, two brake electromagnets, two first connecting rods and two safety tongss; Wherein,
The elevator top of this elevator and elevator car upper are respectively arranged with crossbeam, two guide rails are symmetrically arranged with between lift car and elevator, elevator car upper, bottom are respectively arranged with the upper guide boots and lower guide boots that coordinate with two guide rails and lead, two safety tongss are separately positioned between cage bottom underbeam and two lower guide boots, for making elevator brake to two guide rail clampings respectively;
Two brake electromagnets are separately fixed on two upper guide boots of car, the sensor generator of LDV sensor is fixed on the crossbeam at elevator top, transducer receivers is fixed on the crossbeam of elevator car upper, and LDV sensor is for controlling guide rail corresponding to two brake electromagnet absorption;
Two first connecting rods are arranged on car both sides, and the upper articulation of each first connecting rod is on a brake electromagnet, and lower hinge is in the movable wedge of a corresponding safety tongs.
The utility model further improves and is, is hinged between two first connecting rods by a connecting rod mechanism.
The utility model further improves and is, connecting rod mechanism comprises two second connecting rods and a third connecting rod, wherein, the two ends of third connecting rod are hinged with one end of two second connecting rods respectively, and the other end of two second connecting rods is hinged with the centre of two first connecting rods respectively.
The utility model further improves and is, the crossbeam two bottom sides of elevator car upper is also symmetrically arranged with two deep floors, and the centre of two second connecting rods is hinged with corresponding deep floor respectively.
The utility model further improves and is, each brake electromagnet includes two electromagnet stents, and one end of two electromagnet stents is hinged, and its other end is respectively arranged with the first electromagnet and the second electromagnet.
The utility model further improves and is, the inner side of two electromagnet stents is connected by Compress Spring.
The utility model further improves and is, the hinging place of two electromagnet stents offers pin-and-hole, each brake electromagnet is all by being fixed on two upper guide boots of car through the first double end stud of pin-and-hole, and each brake electromagnet all can move axially on the first double end stud of correspondence.
The utility model further improves and is, each first double end stud is provided with nut and two pads, the first double end stud between two pads is set with spring, moves axially on the first double end stud for controlling brake electromagnet.
The utility model further improves and is, this elevator top cross-bar center is provided with towing machine, for passing through rope hoisting lift car.
Relative to prior art, the utility model has following advantage:
The utility model is provided with velocity-measuring system, it adopts LDV sensor, directly can measure the moving velocity of car, when car speed reaches 115% of rated speed of lift, LDV sensor sends a signal to control system, control system is made a response, start brake electromagnet, it is made tightly to be adsorbed on elevator rail, when car declines further, electromagnet is by tension linkage, and connecting rod draws the movable wedge on safety tongs, make between movable wedge and track, to produce larger gripping power, finally make elevator brake.The utility model can go out the velocity variations of lift car and brakes car timely by monitor, thus reach make elevator in emergency situations braking in time protect the object of personal security.
Specifically, the utility model has some advantage following:
1, range rate accuracy is high.LDV principle is laser doppler, when light source and mobile generation relative motion, the light of returning from mobile scattering can produce Doppler frequency shift, and the angle of the size of this frequency shift amount and the speed of object, incident light and velocity reversal has relation.This sensor adopt non-contact measurement, do not need through mechanical device conversion can directly from measurement car space rate, survey precision is higher.
2, braking time is rapid.When car speed exceedes 115% of rated speed of lift, Sensor monitoring goes out speed and exceeds standard, and then starts electromagnet by controlling unit, and electromagnet is adhesive immediately, and traction link makes safety tongs action.
3, reliability is high.The utility model adopts two brake electromagnets tightly to adsorb in orbit, just can reach by changing size of current, coil turn and iron core polarization area the suction size wanted.Drastically increase the tractive force of brake electromagnet to both sides connecting rod, thus enable safety tongs action effectively, safe and reliable.
Accompanying drawing illustrates:
Fig. 1 is integral structure figure of the present utility model.
Fig. 2 is the A direction view of brake electromagnet.
In figure: 1-towing machine; 2-steel rope; 3-third connecting rod; 4-the first double end stud; 5-pad; 6-spring; 7-brake electromagnet; 8-deep floor; 9-guide rail; 10-the first bolt; 11-safety tongs; 12-lower guide boots; 13-the second bolt; 14-the first connecting pin; 15-cage bottom underbeam; 16-car; 17-first connecting rod; 18-the second connecting pin; 19-the three connecting pin; 20-second connecting rod; 21-the four connecting pin; 22-upper guide boots; 23-the five connecting pin; 24-transducer receivers; 25-the second double end stud; 26-sensor generator; 27-the three bolt; 7-1-the first electromagnet; 7-2-the second electromagnet; 7-3-electromagnet stent; 7-4-pin-and-hole; 7-5-Compress Spring.
Detailed description of the invention:
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, a kind of brake device for elevator of the utility model, comprises laser Doppler velocimetry sensor, brake electromagnet 7, connecting rod mechanism, safety tongs 11.
Wherein, the elevator top of this elevator and elevator car upper are respectively arranged with crossbeam, two guide rails 9 are symmetrically arranged with between lift car and elevator, elevator car upper, bottom are respectively arranged with the upper guide boots 22 and lower guide boots 12 that coordinate with two guide rails 9 and lead, two safety tongss 11 are separately positioned between cage bottom underbeam 15 and two lower guide boots 12, for making elevator brake to two guide rail 9 clampings respectively, and be connected by the second bolt 13 between two safety tongss 11 and corresponding lower guide boots 12; The sensor generator 26 of LDV sensor is fixed on the crossbeam at elevator top with the 3rd bolt 27, and transducer receivers 24 second double end stud 25 is fixed on the crossbeam on lift car 16 top.Two brake electromagnets 7 are fixed on car 16 upper guide boots 22 with the first double end stud 4 respectively, specifically, each brake electromagnet 7 includes two electromagnet stent 7-3, one end of two electromagnet stent 7-3 is hinged, its other end is respectively arranged with the first electromagnet 7-1 and the second electromagnet 7-2, the inner side of two electromagnet stent 7-3 is connected by Compress Spring 7-5, the hinging place of two electromagnet stent 7-3 offers pin-and-hole 7-4, each brake electromagnet 7 is all by being fixed on two upper guide boots 22 of car 16 through first double end stud 4 of pin-and-hole 7-4, and each brake electromagnet 7 all can move axially on the first double end stud 4 of correspondence.
Two first connecting rods 17 lay respectively at car 16 both sides, and each first connecting rod 17 top the 5th connecting pin 23 is hinged on brake electromagnet 7, and first connecting rod 17 bottom the first connecting pin 14 is hinged in the movable wedge of safety tongs 11.Be hinged by a connecting rod mechanism between two first connecting rods 17, wherein, connecting rod mechanism comprises two second connecting rods 20 and a third connecting rod 3, wherein, the two ends of third connecting rod 3 are hinged with one end of two second connecting rods 20 respectively, and the other end of two second connecting rods 20 is hinged with the centre of two first connecting rods 17 respectively.In addition, the centre that the crossbeam two bottom sides of elevator car upper is also symmetrically arranged with two deep floors, 8, two second connecting rods 20 is hinged with corresponding deep floor 8 respectively.
In the present embodiment, described brake electromagnet 7 has two, and symmetry is arranged on the top that elevator car upper leads boots, and the two parameter is identical, is conducive to the tractive force increasing brake electromagnet 7.
In the present embodiment, described first connecting rod 17 has two, and symmetry is arranged on the both sides of elevator, is connected, is conducive to both sides connecting rod mechanism and works simultaneously between two first connecting rods with a connecting rod mechanism.
In the present embodiment, described safety tongs 11 has two, is arranged on the bottom of car respectively by bolt symmetry.
Principle of work of the present utility model is: in FIG, and towing machine 1 pulls steel rope 2 to make car 16 up-and-down movement, when steel rope 2 is due to long term wear or after rupturing under overweight state, car 16 will not by steel rope 2 tractive force and sharply under.Now receive with the second double end stud 25 transducer receivers 24 be fixed in lift car 16 upper beam the laser sent with the sensor generator 26 that the second double end stud 25 is fixed on the crossbeam at elevator top, measure the space rate of lift car 16.When the descending speed of car 16 reaches 115% of rated speed of lift, the Doppler signal received is delivered to photomultiplier and is converted into electric signal and process and amplifies by transducer receivers 24, drive and be fixed on car upper with the first double end stud 4 and lead brake electromagnet 7 on boots 22, be tightly adsorbed on cage guide 9.First connecting rod 17 top the 5th connecting pin 23 is hinged on brake electromagnet 7, and first connecting rod 17 bottom the first connecting pin 14 is hinged in the movable wedge of safety tongs 11.
In the middle part of first connecting rod 17 with the second connecting pin 18 and second connecting rod 20 hinged, second connecting rod 20 again by the 4th connecting pin 21 and the second connecting pin 18 respectively with deep floor 8 and third connecting rod 3 hinged, along with car 16 declines further, traction first connecting rod 17 is strained the movable wedge being fixed on the safety tongs 11 on cage bottom underbeam 15 with the first bolt 10 by brake electromagnet 7, make to produce larger gripping power between movable wedge and cage guide 9, finally make elevator brake, reach the object of braking.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (9)
1. a brake device for elevator, is characterized in that, comprises laser Doppler velocimetry sensor, two brake electromagnets (7), two first connecting rods (17) and two safety tongss (11); Wherein,
The elevator top of this elevator and elevator car upper are respectively arranged with crossbeam, two guide rails (9) are symmetrically arranged with between lift car and elevator, elevator car upper, bottom are respectively arranged with the upper guide boots (22) and lower guide boots (12) that coordinate with two guide rails (9) and lead, two safety tongss (11) are separately positioned between cage bottom underbeam (15) and two lower guide boots (12), for making elevator brake to two guide rail (9) clampings respectively;
Two brake electromagnets (7) are separately fixed on two upper guide boots (22) of car (16), the sensor generator (26) of LDV sensor is fixed on the crossbeam at elevator top, transducer receivers (24) is fixed on the crossbeam of elevator car upper, and LDV sensor is for controlling guide rail (9) corresponding to two brake electromagnet (7) absorption;
Two first connecting rods (17) are arranged on car (16) both sides, the upper articulation of each first connecting rod (17) is on a brake electromagnet (7), and lower hinge is in the movable wedge of a corresponding safety tongs (11).
2. a kind of brake device for elevator according to claim 1, is characterized in that, is hinged between two first connecting rods (17) by a connecting rod mechanism.
3. a kind of brake device for elevator according to claim 2, it is characterized in that, connecting rod mechanism comprises two second connecting rods (20) and a third connecting rod (3), wherein, the two ends of third connecting rod (3) are hinged with one end of two second connecting rods (20) respectively, and the other end of two second connecting rods (20) is hinged with the centre of two first connecting rods (17) respectively.
4. a kind of brake device for elevator according to claim 3, it is characterized in that, the crossbeam two bottom sides of elevator car upper is also symmetrically arranged with two deep floors (8), and the centre of two second connecting rods (20) is hinged with corresponding deep floor (8) respectively.
5. a kind of brake device for elevator according to claim 1, it is characterized in that, each brake electromagnet (7) includes two electromagnet stents (7-3), one end of two electromagnet stents (7-3) is hinged, and its other end is respectively arranged with the first electromagnet (7-1) and the second electromagnet (7-2).
6. a kind of brake device for elevator according to claim 5, is characterized in that, the inner side of two electromagnet stents (7-3) is connected by Compress Spring (7-5).
7. a kind of brake device for elevator according to claim 5, it is characterized in that, the hinging place of two electromagnet stents (7-3) offers pin-and-hole (7-4), each brake electromagnet (7) is all by being fixed on two upper guide boots (22) of car (16) through first double end stud (4) of pin-and-hole (7-4), and each brake electromagnet (7) all can move axially on first double end stud (4) of correspondence.
8. a kind of brake device for elevator according to claim 7, it is characterized in that, each first double end stud (4) is provided with nut and two pads (5), the first double end stud (4) between two pads (5) being set with spring (6), moving axially on the first double end stud (4) for controlling brake electromagnet (7).
9. a kind of brake device for elevator according to claim 1, is characterized in that, this elevator top cross-bar center is provided with towing machine (1), for passing through steel rope (2) hoisting elevator car (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520683844.0U CN204897286U (en) | 2015-09-06 | 2015-09-06 | Elevator arresting gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520683844.0U CN204897286U (en) | 2015-09-06 | 2015-09-06 | Elevator arresting gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204897286U true CN204897286U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520683844.0U Expired - Fee Related CN204897286U (en) | 2015-09-06 | 2015-09-06 | Elevator arresting gear |
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| CN (1) | CN204897286U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115410A (en) * | 2016-08-31 | 2016-11-16 | 西南交通大学 | A kind of elevator safety safeguards system based on magnetic rail brake device and control method |
| CN106698137A (en) * | 2017-01-10 | 2017-05-24 | 成都辟思航空科技有限公司 | Permanent magnetic anti-falling device used on steel guide rail |
| CN107792747A (en) * | 2016-08-30 | 2018-03-13 | 奥的斯电梯公司 | The stabilising arrangement of elevator car |
| CN110361208A (en) * | 2018-03-26 | 2019-10-22 | 上海三菱电梯有限公司 | The test method and device for the method for lift car emergency braking apparatus |
| CN110817645A (en) * | 2019-10-25 | 2020-02-21 | 湖南大举信息科技有限公司 | Elevator brake system |
| CN114455423A (en) * | 2022-03-24 | 2022-05-10 | 常熟理工学院 | Elevator safety tongs-speed limiter linkage device |
| CN114751278A (en) * | 2021-01-12 | 2022-07-15 | 山东富士制御电梯有限公司 | Self-detection automatic operation elevator safety protection device |
-
2015
- 2015-09-06 CN CN201520683844.0U patent/CN204897286U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107792747A (en) * | 2016-08-30 | 2018-03-13 | 奥的斯电梯公司 | The stabilising arrangement of elevator car |
| CN106115410A (en) * | 2016-08-31 | 2016-11-16 | 西南交通大学 | A kind of elevator safety safeguards system based on magnetic rail brake device and control method |
| CN106698137A (en) * | 2017-01-10 | 2017-05-24 | 成都辟思航空科技有限公司 | Permanent magnetic anti-falling device used on steel guide rail |
| CN106698137B (en) * | 2017-01-10 | 2023-06-06 | 成都辟思航空科技有限公司 | Permanent magnet anti-falling device for steel guide rail |
| CN110361208A (en) * | 2018-03-26 | 2019-10-22 | 上海三菱电梯有限公司 | The test method and device for the method for lift car emergency braking apparatus |
| CN110817645A (en) * | 2019-10-25 | 2020-02-21 | 湖南大举信息科技有限公司 | Elevator brake system |
| CN114751278A (en) * | 2021-01-12 | 2022-07-15 | 山东富士制御电梯有限公司 | Self-detection automatic operation elevator safety protection device |
| CN114455423A (en) * | 2022-03-24 | 2022-05-10 | 常熟理工学院 | Elevator safety tongs-speed limiter linkage device |
| CN114455423B (en) * | 2022-03-24 | 2022-11-25 | 常熟理工学院 | Elevator safety tongs-overspeed governor aggregate unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20160906 |
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| CF01 | Termination of patent right due to non-payment of annual fee |