CN201961947U - Progressive additional brake of escalator - Google Patents
Progressive additional brake of escalator Download PDFInfo
- Publication number
- CN201961947U CN201961947U CN2011200487438U CN201120048743U CN201961947U CN 201961947 U CN201961947 U CN 201961947U CN 2011200487438 U CN2011200487438 U CN 2011200487438U CN 201120048743 U CN201120048743 U CN 201120048743U CN 201961947 U CN201961947 U CN 201961947U
- Authority
- CN
- China
- Prior art keywords
- additional brake
- fixed
- voussoir
- escalator
- friction
- 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.)
- Expired - Lifetime
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- Escalators And Moving Walkways (AREA)
- Braking Arrangements (AREA)
Abstract
The utility model relates to a progressive additional brake of an escalator, fundamentally overcoming the defects of the traditional additional brake that the impact force is large and the braking distance cannot be controlled easily. The progressive additional brake comprises a friction plate and an additional brake, wherein the friction plate is fixed on a stepping chain wheel, and the additional brake is assembled on a truss and is connected with an electromagnet. In the key technical points, a U-shaped plate spring of the additional brake is fixed on the truss, the two sides of the U-shaped plate spring are respectively provided with a fixed wedge block, movable wedge blocks with friction pieces fixed on inner surfaces are arranged along the sliding surfaces of the fixed wedge blocks, and the ends of the movable wedge blocks are respectively hinged with an opening end of a movable opening slot of an electromagnet connection rod, so that the friction pieces of the movable wedge blocks can be separated from and engaged with the friction plate on the stepping chain wheel along with axial movement of the connection rod. Compared with similar production, the utility model has the advantages that the progressive additional brake has a reasonable structural design, reliable braking can be achieved, the braking impact force is small, the service life of the spindle is prolonged, the equipment maintenance rate is decreased, the braking force can be adjusted conveniently, and the braking distance can be controlled easily, and the requirements of standards for the braking distance and braking deceleration can be satisfied.
Description
Technical field
The utility model relates to the additional brake device that a kind of escalator is used, the gradual additional brake of particularly a kind of escalator, it mainly is applicable to high-altitude escalator, also be applicable to the control of braking of moving sidewalk, belong to the control of braking technical field of escalator and moving sidewalk.
Background technology
According among the new edition European standard EN115-1:2008 " manufacturing of escalator and moving sidewalk with install safety standard " about the requirement of stop distance, additional brake should be able to make escalator with brake load and moving sidewalk slow down effectively to stop, and making it keep quiescence, deceleration/decel should not surpass 1m/s
2The tradition additional brake all is that friction disc is fixed on ladder sprocket wheel or main the driving on the hinge wheel basically, compress by disk spring, when additional brake action beginning, at first being ratchet contacts with block on the friction disc, at first under the effect of force of inertia, overcome the static friction force of friction disc, make friction disc and ladder sprocket wheel or the main hinge wheel that drives relatively rotate stop escalator under the effect of kinetic force of friction.In this process, static friction force is far longer than kinetic force of friction, and the design value of kinetic force of friction should be enough to the stop escalator, at the beginning of this must cause braking to the powerful impulsive force of main shaft, and its stop deceleration/decel is very big, be difficult to guarantee in the EN115-1:2008 standard also there is very big danger in the passenger about the requirement of stop distance.For addressing the above problem, patent publication No. be CN101633470's " additional brake of escalator ", disclose a kind of mode that on slipper, connects polyurethane bumper absorber and reduced impulsive force, though this kind mode can reduce the impulsive force to main shaft, but still adopt from static friction force to the kinetic force of friction transforming process, principle does not change, and can not tackle the problem at its root.
The utility model content
The purpose of this utility model provides the gradual additional brake of a kind of escalator, defectives such as the impulsive force that has fundamentally overcome traditional additional brake existence is big, the stop distance is wayward, has reasonable in design compared with similar products, braking is reliable, the braking impulsive force is little, prolong the service life of main shaft, the maintenance rate of reduction equipment, braking force is easy to adjust, the stop distance is easy to advantages such as control, can satisfy the stop distance of standard code and the requirement of braking deceleration, guarantee passenger's using escalator safety.Save cost more than 50%.
The technical scheme that the utility model adopted is: this escalator with gradual additional brake comprise be fixed on the friction disc on the ladder sprocket wheel and be assembled on the truss with electromagnet bonded assembly additional brake, its technical essential is: the U-shaped laminated spring of described additional brake is fixed on the described truss, the both sides of described U-shaped spring are assembled respectively and are decided voussoir, the moving voussoir of inside face fixed friction sheet is set along the described sliding surface of deciding voussoir, the end of described moving voussoir is hinged on the open end of the active open groove of described electromagnet rank bar respectively, and the friction lining that makes described moving voussoir along with described rank bar move axially with described ladder sprocket wheel on the friction disc clutch.
Between described fixed, moving voussoir, the needle bearing that reduces friction force between two voussoirs is set.
Regulate the inhibiting device of forming by left and right switch touch panel of moving voussoir miles of relative movement axially being assembled with of described rank bar.
Advantage and the good effect that the utlity model has are: move, decide voussoir because additional brake of the present utility model adopts to assemble in the U-shaped laminated spring, utilization is fixed on the friction between the friction lining of the moving voussoir that friction disc on the ladder sprocket wheel and electromagnet rank bar drive, the gripping power of control additional brake, so have reasonable in design compared with similar products, in braking procedure, make braking force become static friction force from kinetic force of friction, the braking impulsive force is little, brakes advantages such as reliable.Because of adjust the miles of relative movement of moving voussoir by inhibiting device, so braking force is easy to adjust, the stop distance is easy to control, can make the escalator of different hoisting depths obtain corresponding braking force, stopping distance is controlled in the reasonable range, thereby satisfies the stop distance of standard code and the requirement of braking deceleration.This not only can prolong the service life of main shaft, reduces the maintenance rate of equipment, and guarantees passenger's using escalator safety.Therefore, the traditional on year-on-year basis additional brake of the utility model is cost-saved more than 50%.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a kind of concrete structure scheme drawing of the present utility model;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the B enlarged view of Fig. 1;
Fig. 4 is a principle of work scheme drawing of the present utility model.
Sequence number explanation among the figure: 1 ladder sprocket wheel, 2 friction discs, 3 electromagnet, 4 rank bars, 5 left lateral journey switches, 6 right lateral journey switches, 7 U-shaped springs, 8 are decided voussoir, 9 needle bearings, 10 moving voussoirs, 11 friction linings, 12 active open grooves, 13 right switch touch panels, 14 Connection Blocks, 15 left-handed opening touch panels.
The specific embodimentAxially being assembled with of rank bar regulated the inhibiting device of being made up of left and right switch touch panel of moving voussoir miles of relative movement.
Describe concrete structure of the present utility model in detail according to Fig. 1～4 below.This escalator comprise the friction disc 2 that is fixed on the ladder sprocket wheel 1 with gradual additional brake and be assembled on the truss with parts such as electromagnet 3 bonded assembly additional brakes.Wherein with electromagnet 3 bonded assembly additional brakes as shown in Figure 3, main by U-shaped spring 7, decide voussoir 8, the moving voussoir 10 etc. that has a friction lining 11 forms.U-shaped laminated spring 7 is fixed on the truss, is fixed with respectively in the both sides of U-shaped spring 7 and decides voussoir 8.Along the sliding surface of deciding voussoir 8 moving voussoir 10 is set, is fixed with friction lining 11, to increase the friction force of 2 of moving voussoir 10 and friction discs at the inside face that moves voussoir 10.Rank bar 4 one ends of electromagnet 3 are connected with active open groove 12, the other end is supported on the truss by compression spring and Connection Block 14, and regulate the inhibiting device of forming by adjustable left and right switch touch panel 15,13 of moving voussoir 10 miles of relative movement axially being assembled with of rank bar 4, be complementary with the left lateral journey switch 5, the right lateral journey switch 6 that are fixed on the truss respectively, to limit the active distance that moving voussoir 10 moves.The end of moving voussoir 10 is hinged on the open end of active open groove 12 of the rank bar 4 of electromagnet 3 respectively; and the friction lining 11 that makes voussoir 10 is along with the axial left and right of rank bar 4 of electromagnet 3 moved; under the elastic force effect of U-shaped spring 7; realizing that friction disc 2 on friction lining 11 and the ladder sprocket wheel 1 is closed contact or separates disengaging, with brake application stoping that reaches ladder sprocket wheel 1 or the purpose of normally moving.In order to reduce the friction force between two slide blocks, between fixed, moving voussoir 8,10, needle bearing 9 is set.Regulate the miles of relative movement of moving voussoir 10 by the axial inhibiting device of forming by left and right switch touch panel 15,13 that is fixed on rank bar 4, to reach the braking force of differing heights escalator.
Principle of work of the present utility model is as shown in Figure 4: when escalator or moving sidewalk start operation, electromagnet 3 gets electric adhesive, rank bar 4 overcomes the spring force of compression spring, driving moving voussoir 10 moves to the right, left-handed opening touch panel 15 is thrown off with travel switch 5, makes voussoir 10 and friction disc 2 separate disengaging.Simultaneously right switch touch panel 13 clamping stroke switches 6 send signal to system, and this moment, motor got electric startup, and escalator or moving sidewalk bring into operation.When escalator or moving sidewalk normally stopped ladder, motor at first cut off the power supply, the service brake action, and escalator or moving sidewalk are out of service.When service brake moves, electromagnet 3 time-delays outage after 3 seconds, moving voussoir 10 to left movement, makes voussoir 10 and friction disc 2 closed contacts under the effect of rank bar 4.Because this moment, escalator or moving sidewalk were out of service, the suction-combining force of electromagnet 3 was enough to make voussoir 10 and friction disc 2 to be thrown off when drove ladder next time.When moving voussoir 10 moved to friction disc 2 closed contacts, left-handed opening touch panel 15 clamping stroke switches 5 sent signal to system, and additional brake has moved and put in place, and equipment is normal.
When escalator or moving sidewalk running velocity surpass 1.4 times of nominal speed; or step; pedal (adhesive tape) changes before its regulation service direction; overspeed protection device NOR operation reversal protection device sends signal; cut off motor power; while electromagnet 3 dead electricity; moving voussoir 10 contacts with friction disc 2 closures under the effect of rank bar 4; under the rotation of friction disc 2; moving voussoir 10 continues to move; make U-shaped spring 7 spreadings; move to spacing position until moving voussoir 10 and be blocked, this moment, friction disc 2 stopped operating under the gripping power effect of U-shaped spring 7, and escalator or moving sidewalk are out of service.
After trouble shooting, upwards crawl operation escalator or moving sidewalk because of moving voussoir 10 and deciding needle bearing 9 is housed between the voussoir 8, can make voussoir 10 reversing sense under very little propulsive effort effect move, thereby additional brake is thrown off, and restore to the original state.
Claims (3)
1. gradual additional brake of escalator, comprise be fixed on the friction disc on the ladder sprocket wheel and be assembled on the truss with electromagnet bonded assembly additional brake, it is characterized in that: the U-shaped laminated spring of described additional brake is fixed on the described truss, the both sides of described U-shaped spring are assembled respectively and are decided voussoir, the moving voussoir of inside face fixed friction sheet is set along the described sliding surface of deciding voussoir, the end of described moving voussoir is hinged on the open end of the active open groove of described electromagnet rank bar respectively, and the friction lining that makes described moving voussoir along with described rank bar move axially with described ladder sprocket wheel on the friction disc clutch.
2. the gradual additional brake of escalator as claimed in claim 1 is characterized in that: between described fixed, moving voussoir the needle bearing that reduces friction force between two voussoirs is set.
3. the gradual additional brake of escalator as claimed in claim 1 is characterized in that: the inhibiting device of being made up of left and right switch touch panel of regulating moving voussoir miles of relative movement axially being assembled with of described rank bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200487438U CN201961947U (en) | 2011-02-28 | 2011-02-28 | Progressive additional brake of escalator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200487438U CN201961947U (en) | 2011-02-28 | 2011-02-28 | Progressive additional brake of escalator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201961947U true CN201961947U (en) | 2011-09-07 |
Family
ID=44524481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200487438U Expired - Lifetime CN201961947U (en) | 2011-02-28 | 2011-02-28 | Progressive additional brake of escalator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201961947U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180399A (en) * | 2011-02-28 | 2011-09-14 | 沈阳博林特电梯股份有限公司 | Gradual auxiliary brake for escalator |
| CN102963805A (en) * | 2012-11-26 | 2013-03-13 | 康力电梯股份有限公司 | Escalator auxiliary brake device |
| CN107055227A (en) * | 2017-05-11 | 2017-08-18 | 宁波宏大电梯有限公司 | Automatic control adjusting apparatus and method during a kind of elevator additional brake misoperation |
| CN112340634A (en) * | 2019-08-07 | 2021-02-09 | 上海三菱电梯有限公司 | Additional brake and escalator or moving sidewalk |
-
2011
- 2011-02-28 CN CN2011200487438U patent/CN201961947U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180399A (en) * | 2011-02-28 | 2011-09-14 | 沈阳博林特电梯股份有限公司 | Gradual auxiliary brake for escalator |
| CN102180399B (en) * | 2011-02-28 | 2012-12-19 | 沈阳博林特电梯股份有限公司 | Gradual auxiliary brake for escalator |
| CN102963805A (en) * | 2012-11-26 | 2013-03-13 | 康力电梯股份有限公司 | Escalator auxiliary brake device |
| CN107055227A (en) * | 2017-05-11 | 2017-08-18 | 宁波宏大电梯有限公司 | Automatic control adjusting apparatus and method during a kind of elevator additional brake misoperation |
| CN112340634A (en) * | 2019-08-07 | 2021-02-09 | 上海三菱电梯有限公司 | Additional brake and escalator or moving sidewalk |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 110027 Shenyang economic and Technological Development Zone, Liaoning Road, No. 27 Patentee after: Shenyang Brilliant Elevator Co., Ltd. Address before: 110027, No. 27, No. sixteen, great road, Shenyang economic and Technological Development Zone, Liaoning Patentee before: Shenyang Brilliant Elevator Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110907 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |