CN104649118B - A kind of extra brake devices of escalator - Google Patents
A kind of extra brake devices of escalator Download PDFInfo
- Publication number
- CN104649118B CN104649118B CN201510075752.9A CN201510075752A CN104649118B CN 104649118 B CN104649118 B CN 104649118B CN 201510075752 A CN201510075752 A CN 201510075752A CN 104649118 B CN104649118 B CN 104649118B
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- CN
- China
- Prior art keywords
- ratchet
- connecting rod
- escalator
- electromagnet
- reset portion
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
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- Escalators And Moving Walkways (AREA)
Abstract
The present invention relates to a kind of extra brake devices of escalator, it includes:Brake bracket, the connecting rod for being arranged on brake bracket one end, the ratchet holder that pivot joint is arranged on the brake bracket other end and is connected by the reset portion of gravity reduction, with connecting rod, the ratchet being articulated in ratchet holder, the support of fixed brake bracket and with click-fit and there is the ratchet of drive shaft, wherein brake bracket is fixed with the switch of the electromagnet being connected with connecting rod and control work of electromagnet.The present invention is by the reset portion of gravity reduction come instead of existing spring, good reliability, spring force need not be adjusted, without safeguarding, maintenance cost is greatly reduced, ensure the operation of escalator safety stop simultaneously, unexpected generation is prevented, and with simple in construction, brakes steady, deceleration is small during stop, the short advantage of braking distance.
Description
Technical field
The present invention relates to a kind of extra brake devices of escalator.
Background technology
Escalator is a kind of fixation electric power drive for carrying circular flow step, passenger being conveyed for tilting up or down
Dynamic equipment, with continuous work, the characteristics of freight volume is big is widely used in subway, light rail, station, airport, the code of stream of people's concentration
The vertical transport of the public places such as head, shop and mansion, its structure is main by step, step driving unit, driving main frame, transmission
Part, tensioning device, armrest system, metal structure, step roller track, upper and lower cover plates, fishback, extra brake devices and electrical part
The part that grades is constituted, but in escalator due to various failures so that when safety return circuit is destroyed, especially because dragging chain is disconnected
It is sliding after quickly causing under the weight effect of escalator personnel and article in deadweight and step when splitting；If be cased with without one
The mechanical device of effect is sliding to prevent after staircase, and escalator is by the danger close of change, it is possible to directly threaten life, therefore additional
The effect of brake apparatus is most important, as shown in Figure 1-2, and its extra brake devices includes electromagnet 1, is arranged on electromagnet 1 one
The connecting rod 2 at end, the back-moving spring 3 for being arranged on the other end of electromagnet 1, the cross bar 4 being connected with connecting rod 2, the spine being connected with cross bar 4
Pawl 5, the support 6 of fixed electromagnet 1 and the ratchet 7 coordinated with ratchet 5.Wherein back-moving spring 3 is easy after long-time use
Failure, often need to change and repair, and be needed during maintenance big come the corresponding elastic force for adjusting back-moving spring by adjusting connecting rod 2
It is small, inconvenient maintenance is caused, and its is complicated, deceleration is big when braking unstable, stop, and braking distance is long.
The content of the invention
The present invention seeks to：A kind of extra brake devices of escalator are provided, simple in construction, braking is steady, during stop
Deceleration is small, and braking distance is short.
The technical scheme is that：A kind of extra brake devices of escalator, it includes：Brake bracket, it is arranged on system
The connecting rod of moving frame one end, the reset portion coordinated by gravity reduction and with connecting rod effect, the ratchet holder being connected with connecting rod, pivot joint
Ratchet in ratchet holder, the support of fixed brake bracket and with click-fit and there are the ratchet of drive shaft, wherein brake bracket
It is fixed with the electromagnet being connected with connecting rod and the switch for controlling work of electromagnet.
On the basis of above-mentioned technical proposal, further comprise following attached technical scheme：
It further comprises the supporting surface contacted with each other with reset portion and the pillar with supporting surface abutting contact.
The supporting surface is the face of cylinder, sphere or arc surface.
The reset portion includes being articulated in the rotating shaft on brake bracket and the center line of the bottom bar positioned at bottom, wherein bottom bar
Between reset portion center line and rotating shaft and close to rotating shaft, and supporting surface is located at bottom bar and pillar between the two.
The ratchet holder is provided with the guiding groove of guiding connecting rod positioning, and one end of connecting rod can be pivoted and promote ratchet
Unscrew.
The ratchet, which is additionally provided with to match somebody with somebody with detent contact, merges the ratchet for realizing braking.
The supporting surface and pillar are fixedly connected with connecting rod respectively.
The reset portion is located between ratchet holder and electromagnet.
The method have the advantages that：
By the reset portion of gravity reduction come instead of existing spring, good reliability, without adjusting spring force, without dimension
Shield, greatly reduces maintenance cost, while ensure the operation of escalator safety stop, prevents unexpected generation, and with simple in construction,
Braking is steady, and deceleration is small during stop, the short advantage of braking distance.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Fig. 1 is the front view of prior art；
Fig. 2 is the top view of prior art；
Fig. 3 is the front view of the normal operating condition of the present invention；
Fig. 4 is the front view of the on-position of the present invention；
Fig. 5 is the top view of the on-position of the present invention.
Embodiment
Embodiment：As in Figure 3-5, the invention provides a kind of specific implementation of the extra brake devices of escalator
Example, it includes：Brake bracket 10, the connecting rod 20 for being arranged on the one end of brake bracket 10, pivot joint are arranged on the other end of brake bracket 10 and passed through
Gravity reduction simultaneously acts on the reset portion 30 coordinated, the ratchet holder 40 being connected with connecting rod 20 with connecting rod 20, is articulated in ratchet holder 40
On ratchet 50, the support 60 of fixed brake bracket 10 and the ratchet 70 for coordinating and having drive shaft 72 with ratchet 50, wherein making
Moving frame 10 is provided with the electromagnet 12 being connected with connecting rod 20, control electromagnet 12 works switch 14 and the phase mutual connection of reset portion 30
Tactile supporting surface 16 and the pillar 18 with the abutting contact of supporting surface 16.Supporting surface 16 be preferably the face of cylinder, or sphere or
Other arc surfaces.Supporting surface 16 and pillar 18 are fixedly connected with connecting rod 20 respectively.Electromagnet 12 is electrical connected with PLC.
Connecting rod 20 is integrally articulated on ratchet 50 by pitman shaft 20.
Reset portion 30 includes being articulated in the rotating shaft 32 on brake bracket 10 and the bottom bar 34 positioned at bottom, wherein bottom bar 34
Center line is located between the center line of reset portion 30 and rotating shaft 32 and close to rotating shaft 32, and thus bears the whole weight of reset portion 32
Power, and supporting surface 16 is located at bottom bar 34 and pillar 18 between the two.It is understood that reset portion 30 can also be located at ratchet
Between frame 40 and electromagnet 12, it can also be located on connecting rod 20, can equally realize the object of the invention.
Ratchet holder 40 is provided with the guiding groove 42 that guiding connecting rod 20 is positioned, and the guiding groove 42 is located at the interposition of ratchet holder 40
Put.The end of connecting rod 20 is housed in the guiding groove 42 and can moved along the guiding groove 42., should compared to prior art
The setting of guiding groove 42 make it that the running and comparing of connecting rod 20 is steady, and stress is than more uniform, so as to extend the use longevity of connecting rod 20
Life.In addition, the end of the connecting rod 20 is fixedly connected on ratchet 50 after passing through guiding groove 42 by pitman shaft 22, such connecting rod 20
Movement around its pawl axis 52 can rotate or swing with pawl 50.It can be seen that, compared to prior art, the present invention passes through one
Individual connecting rod 20 is to realize the linkage of electromagnet 12 and ratchet 50, without two connecting rods, therefore simplifies structure, has saved life
Produce manufacturing cost.
Ratchet 70 is additionally provided with the ratchet 74 that braking is engaged and realized with ratchet 50.
The operation principle of the present invention：The present invention is when escalator is normally run, and electromagnet 12 is powered, and electromagnet 12 is promoted
Connecting rod 20 so that the ratchet 50 in ratchet holder 40 is withdrawn, and is not interfered with drive shaft and is normally rotated.But occur in escalator each
When kind of failure, such as dragging chain are broken, electromagnet 12 is powered off, and internal compression spring is exited due to elasticity, and connecting rod 20 is to electromagnet
12 direction is shunk, and supporting surface 16 and pillar 18 are toward the right motion in Fig. 5, due to the self gravitation effect of reset portion 30, and multiple
The bottom bar 34 in position portion 30 nestles up supporting surface 16, is also correspondingly moved towards the right, thus reset portion 30 is counterclockwise around rotating shaft 32
Motion, while ratchet 50 is because connecting rod 20 is towards right linear motion, will be achieved in around the clockwise movement of pawl axis 52 ratchet 50 and
Ratchet 74 is engaged, and prevents ratchet 70 from rotating, because ratchet 70 is stalled, so the drive shaft 72 being connected with ratchet 70 can not be after
It is continuous to rotate, it can prevent that cunning causes the accident after staircase generation when escalator breaks down.
Halted state：The startup of extra brake devices and the power of closure are compression spring and electromagnetic wire in electromagnet 12
Circle is provided.When escalator is out of service, the dead electricity of electromagnet 12 does not have magnetic force, and internal compression spring is exited due to elasticity, even
Bar 20 shrinks to the direction of electromagnet 12, and supporting surface 16 and pillar 18 are toward the right motion in Fig. 5, due to reset portion 30 itself weight
Power is acted on, and the bottom bar 34 of reset portion 30 nestles up supporting surface 16, is also correspondingly moved towards the right, and thus reset portion 30 is around turning
The counterclockwise movement of axle 32, while ratchet 50 is because connecting rod 20 is towards right linear motion, will be thus real around the clockwise movement of pawl axis 52
Existing ratchet 50 is engaged with ratchet 74, reaches brake request.Switch 14 on brake bracket 10 also due to electromagnet 12 it is dynamic
Make and open, the loop power-off of staircase driving main frame, staircase safety stop；
Running status：When escalator needs operation, PLC sends signal to electromagnet 12, and electromagnet 12 is obtained
Electricity, the compressing of electromagnet 12 compression spring makes connecting rod 20 towards the left side motion in Fig. 5, and connecting rod 20 enters ratchet in guiding groove 42
50 inner passage 54, compressing ratchet 50 is disengaged around the rotate counterclockwise of pawl axis 52 and action withdrawal with ratchet 74.While connecting rod
20 expand to the direction of ratchet holder 40, and supporting surface 16 and pillar 18 promote bottom bar 34 to transport to the left toward the left side motion in Fig. 5
Dynamic, thus reset portion 30 is around the clockwise movement of rotating shaft 32 until reset, and the action closure of switch 14 on brake bracket 10, drives in addition
Dynamic main frame loop is powered, and escalator is according to instruction operation.When something unexpected happened (such as hypervelocity, reverse, chain rupture), these ground
The detection switch of side can send a signal to PLC, and PLC will be signaled to electromagnet 12, electromagnet
12 work simultaneously down to halted state, main frame band-type brake and braking, run escalator safety stop, prevent unexpected generation.
It is an advantage of the invention that：By the reset portion of gravity reduction come instead of existing back-moving spring, its gravity it is constant and
Produce reliable consistent restoring force, good reliability to connecting rod 20, it is to avoid back-moving spring is after multiple elastic deformation in the prior art
The drawbacks of elastic force caused fails, need to often changed, and the artificial elastic force regulation to spring is inconvenient, inaccurate, so this
Invention also greatly reduces the maintenance cost to extra brake devices, while ensureing the operation of escalator safety stop, prevents meaning
It is outer to occur.
Certainly the above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow be familiar with technique
People can understand present disclosure and implement according to this, it is not intended to limit the scope of the present invention.It is all according to this hair
Equivalent transformation or modification that the Spirit Essence of bright main technical schemes is done, should all be included within the scope of the present invention.
Claims (5)
1. a kind of extra brake devices of escalator, it is characterised in that it includes：Brake bracket (10), it is arranged on brake bracket (10)
The connecting rod (20) of one end, by gravity reduction and with connecting rod (20) act on the reset portion (30) coordinated, be connected with connecting rod (20)
Ratchet holder (40), the ratchet (50) being articulated in ratchet holder (40), the support (60) and and ratchet of fixed brake bracket (10)
(50) coordinate and have the ratchets (70) of drive shaft (72), the reset portion (30) be located at ratchet holder (40) and electromagnet (12) it
Between, wherein brake bracket (10) is fixed with the electromagnet (12) being connected with connecting rod (20) and controls opening for electromagnet (12) work
Close (14), the extra brake devices of the escalator also include the supporting surface (16) contacted with each other with reset portion (30) and with
The pillar (18) of supporting surface (16) abutting contact, the supporting surface (16) is arc surface, and the ratchet holder (40) is provided with guiding
Connecting rod (20) positioning guiding groove (42), and connecting rod (20) one end can around pawl axis (52) rotate and promote ratchet (50) rotate
Open.
2. a kind of extra brake devices of escalator as described in claim 1, it is characterised in that reset portion (30) bag
Include the rotating shaft (32) being articulated on brake bracket (10) and the bottom bar (34) positioned at the bottom of reset portion (30), wherein bottom bar (34)
Center line be located between reset portion (30) center line and rotating shaft (32) and close to rotating shaft (32), and supporting surface (16) is located at bottom bar
(34) and pillar (18) between the two.
3. the extra brake devices of a kind of escalator as described in claim 1, it is characterised in that the ratchet (70) also sets
It is equipped with and the ratchet (74) of braking is engaged and realized with ratchet (50).
4. a kind of extra brake devices of escalator as described in claim 1, it is characterised in that the supporting surface (16) and
Pillar (18) is fixedly connected with connecting rod (20) respectively.
5. a kind of extra brake devices of escalator as described in claim 1, it is characterised in that the supporting surface (16) is
The face of cylinder or sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510075752.9A CN104649118B (en) | 2015-02-12 | 2015-02-12 | A kind of extra brake devices of escalator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510075752.9A CN104649118B (en) | 2015-02-12 | 2015-02-12 | A kind of extra brake devices of escalator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104649118A CN104649118A (en) | 2015-05-27 |
| CN104649118B true CN104649118B (en) | 2017-07-28 |
Family
ID=53240840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510075752.9A Active CN104649118B (en) | 2015-02-12 | 2015-02-12 | A kind of extra brake devices of escalator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104649118B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108584661B (en) * | 2018-04-19 | 2019-09-03 | 永大电梯设备（中国）有限公司 | Additional brake of escalator device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07157265A (en) * | 1993-12-02 | 1995-06-20 | Hitachi Ltd | Safety device for passenger conveyer |
| JP5137542B2 (en) * | 2007-11-30 | 2013-02-06 | 三菱電機ビルテクノサービス株式会社 | Passenger conveyor step chain abnormality detection device |
| JP5051650B2 (en) * | 2008-02-22 | 2012-10-17 | 東芝エレベータ株式会社 | Emergency braking device for passenger conveyor |
| CN201321339Y (en) * | 2008-12-29 | 2009-10-07 | 浙江联合电梯有限公司 | Mechanical braking device for escalators |
| CN102963805A (en) * | 2012-11-26 | 2013-03-13 | 康力电梯股份有限公司 | Escalator auxiliary brake device |
| CN204529060U (en) * | 2015-02-12 | 2015-08-05 | 苏州博量传动设备有限公司 | A kind of extra brake devices of escalator |
-
2015
- 2015-02-12 CN CN201510075752.9A patent/CN104649118B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104649118A (en) | 2015-05-27 |
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