CN206142642U - Automatic overspeed device tensioner on staircase ladder way - Google Patents
Automatic overspeed device tensioner on staircase ladder way Download PDFInfo
- Publication number
- CN206142642U CN206142642U CN201621129754.8U CN201621129754U CN206142642U CN 206142642 U CN206142642 U CN 206142642U CN 201621129754 U CN201621129754 U CN 201621129754U CN 206142642 U CN206142642 U CN 206142642U
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- CN
- China
- Prior art keywords
- driven sprocket
- tensioner
- wheel shaft
- driven
- chain wheel
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
The utility model discloses an automatic overspeed device tensioner on staircase ladder way, including driven sprocket axle, driven sprocket and bearing guide rail, the driven sprocket rotation is installed at driven sprocket epaxially, the tip of driven sprocket axle is equipped with the rotation gyro wheel, and the driven sprocket axle is in through rotating gyro wheel slip support on the bearing guide rail. Driven sprocket installs at the epaxial endotheca of driven sprocket and through the annular wheel plate of bolt fastening in the endotheca periphery including rotating, and the outer fringe of annular wheel plate has the teeth of a cogwheel with stair chain matched with. The utility model provides an automatic overspeed device tensioner on staircase ladder way through the normal running fit between driven sprocket axle and the driven sprocket, has eliminated the moment of torsion that the asynchronous driven sprocket bearing that leads to of driven sprocket received, simultaneously, can reduce drive power, reduces the energy consumption, and the dimension of being convenient for is protected.
Description
Technical field
This utility model is related to escalator technical field, and in particular to a kind of tensioner of escalator stair.
Background technology
In prior art, escalator is equipped with step chain strainer, and its effect is the step for being tensioned stair step
Chain so as to which the step chain of step keeps certain elasticity.
Driven chain wheel shaft on market in the driven sprocket mechanism of common escalator is with driven sprocket using one
The welding structure of change, as escalator is using double host driven, the step chain of step is due to the rotating speed difference of two main frames
Or the rate of tension of step chain is different, and the rotation of two driven sprockets can be caused asynchronous, and then increase the torsion of driven chain wheel shaft
Square.
Meanwhile, if the welding structure of driven chain wheel shaft and driven sprocket using one, break down keeped in repair when, need
By driven chain wheel shaft and driven sprocket integral demounting, the labor intensity of repair and maintenance is increased, the difficulty of repair and maintenance is improve.
Utility model content
This utility model provides a kind of tensioner of escalator stair, can eliminate due to two driven chain rotation
The moment of torsion that dynamic asynchronous caused driven sprocket bearing is received, while during repair and maintenance, can individually dismount driven sprocket, be not required to
Integral demounting driven sprocket mechanism is wanted, labor intensity is alleviated, the difficulty of repair and maintenance is reduced.
A kind of tensioner of escalator stair, including driven chain wheel shaft, driven sprocket and load-bearing guide rail, it is described from
Movable sprocket is rotatably installed on driven chain wheel shaft, and the end of the driven chain wheel shaft is provided with rotation roller, and driven chain wheel shaft passes through
Rotation roller is slidably supported on the load-bearing guide rail.
This utility model only carries out structure improvement, other knots of escalator to the strainer on escalator treadboards ladder road
Structure (such as main driving mechanism) adopts prior art.It is for escalator, terraced in the both sides circular flow two of pedal step
Level chain, two step chains are driven by main driving mechanism and are run, and in order to be tensioned step chain, maintain step chain circular flow
The form in path, arranges tensioner, i.e., be tensioned step chain, every step chain one driven chain of correspondence using driven sprocket
Wheel.
In the case of double host driven, one step chain of every host driven, when the operation speed of two step chains
When deviation occurs in degree, as driven sprocket is rotatably installed on driven chain wheel shaft, can be by driven sprocket relative to driven chain
The speed difference of step chain operation is offset in the rotation of wheel shaft, it is to avoid produce moment of torsion to the two ends of driven chain wheel shaft.
In this utility model, it is engaged with load-bearing guide rail by the rotation roller being set on driven chain wheel shaft, rotates rolling
Do not adopt bearing to connect between wheel and driven chain wheel shaft, but directly sliding friction coordinates.
Preferably, the driven sprocket includes the inner sleeve being rotatably installed on driven chain wheel shaft and is bolted
In the annular wheel plate of inner sleeve periphery, the outer rim of annular wheel plate is with the gear teeth being engaged with step chain.
Specifically, the outer wall of the inner sleeve is provided with ring-type fixing plate, and the annular wheel plate is solid with annular near inner margin portion
Fixed board is superposed, and is interfixed by the bolt.
To be detachably connected between inner sleeve and annular wheel plate, driven sprocket is collectively formed, when repair and maintenance are carried out, can be with portion
Partition reduces the difficulty and labor intensity of repair and maintenance except driven sprocket.
In order to realize being rotatably assorted for driven sprocket and driven chain wheel shaft, it is preferable that the inner sleeve and driven chain wheel shaft it
Between be rotatably assorted by rolling bearing.Further preferably, the rolling bearing is biserial deep groove ball bearing.
Preferably, the tensioner is also including the axle sleeve being set on driven chain wheel shaft, and be connected with axle sleeve
Force pull bar.By exerting a force, pull bar pulls axle sleeve, the rotation roller on driven chain wheel shaft is moved along load-bearing guide rail.
In order to ensure driven chain wheel shaft movably stationarity, it is preferable that the axle sleeve is located at driven sprocket and rotation roller
Between.
The tensioner of the escalator stair that this utility model is provided, by between driven chain wheel shaft and driven sprocket
It is rotatably assorted, eliminates the moment of torsion that the asynchronous caused driven sprocket bearing of driven sprocket is received, meanwhile, it is capable to reduce driving force,
Reducing energy consumption, is easy to repair and maintenance.
Description of the drawings
Top views of the Fig. 1 for the tensioner of this utility model escalator stair；
Side views of the Fig. 2 for the tensioner of this utility model escalator stair；
Fig. 3 is the A-A in Fig. 1 to sectional view；
Fig. 4 is the C portions enlarged drawing in Fig. 3；
Fig. 5 is the D portions enlarged drawing in Fig. 3；
Fig. 6 is the B-B direction sectional view in Fig. 1.
In figure：1st, load-bearing guide rail；2nd, driven sprocket；21st, inner sleeve；22nd, ring-type fixing plate；23rd, annular wheel plate；24th, biserial
Deep groove ball bearing；3rd, driven chain wheel shaft；4th, the guide rail bracket axis of guide；5th, reinforcing plate；6th, exert a force pull bar；7th, stage clip；8th, safety switch；
9th, rotation roller；10th, annular slab；11st, ladder sprocket wheel guide rail bracket；12nd, rotation roller；13rd, groove；14th, axle sleeve；15th, support；
16th, limiting plate.
Specific embodiment
Below in conjunction with the accompanying drawings, the tensioner of this utility model escalator stair is described in detail.
As shown in Figure 1 and Figure 2, a kind of tensioner of escalator stair, including driven chain wheel shaft 3, driven sprocket 2, hold
Weight guide rail 1 and force pull bar 6.
As shown in Figure 3, Figure 4, driven chain wheel shaft 3 is respectively arranged at two ends with driven sprocket 2, and each driven sprocket 2 is by double
24 rotation roller of row deep groove ball bearing is located on driven chain wheel shaft 3, and driven sprocket 2 includes being rotatably installed on driven chain wheel shaft 3
Inner sleeve 21 and the annular wheel plate 23 in 21 periphery of inner sleeve, the outer wall of inner sleeve 21 is provided with ring-type fixing plate 22, annular wheel plate
23 is superposed with ring-type fixing plate 22 near inner margin portion, and is interfixed by bolt.The outer rim of annular wheel plate 23 is carried
The gear teeth being engaged with step chain.
As shown in Figure 1, Figure 3, rotation roller 12, the two ends of driven chain wheel shaft 3 are respectively arranged at two ends with driven chain wheel shaft 3
Load-bearing guide rail 1 is respectively equipped with, as shown in figure 5, rotation roller 12 is slidably fitted on corresponding load-bearing guide rail 1, is led by load-bearing
Rail 1 is supported to driven chain wheel shaft 3.
Rotation roller 12 is provided with the groove 13 matched with load-bearing guide rail 1, forms Embedded fit structure, makes tensioning
Mechanism runs safety and steady.
As shown in Figure 2, Figure 4 shows, the two ends of driven chain wheel shaft 3 are provided with axle sleeve 14, the axle sleeve 14 often held be located at corresponding end from
Between movable sprocket 2 and rotation roller 12.
As shown in Figure 1 and Figure 2, support 15 is fixed with every load-bearing guide rail 1, force pull bar 6 runs through support 15, and force is drawn
Bar 6 is located at the end of 15 side of support and is fixedly connected with axle sleeve 14, and the pull bar 6 that exerts a force is located on the part of 15 opposite side of support and is arranged
Limited location plate 16, the part that the pull bar 6 that exerts a force is located between limiting plate 16 and support 15 are arranged with stage clip 7, and one end of stage clip 7 abuts
Limiting plate 16, the other end abut support 15.
Pre-load nut is additionally provided with force pull bar 6, pre-load nut is coordinated with 6 screw thread of force pull bar, and against limiting plate 16
The dorsad side of support 15.By rotating pre-load nut, the position of limiting plate 16 can be adjusted, and then adjusts the compression of stage clip 7
Amount, make the tightness of step chain of automatic escalator suitable, it is ensured that staircase running status it is steady.
Force pull bar 6 is provided with safety switch 8 away from one end of axle sleeve 14, when step chain ruptures or loose chain occurs, peace
The triggering alarm switch of full switch 8 is reported to the police, and after warning message is transferred to switch board, the main frame for controlling staircase is out of service, and main frame is embraced
Lock falls, escalator stop motion.
As shown in figure 3, annular slab 10 is welded with driven chain wheel shaft 3, the ladder sprocket wheel guide rail bracket 11 of escalator passes through
Bolt is fixedly connected with annular slab 10, running orbit Welding flat steel type of the ladder sprocket wheel guide rail bracket 11 according to chain on step pedal
Material constitutes limit channels, it is ensured that escalator is run according to correct stability-of-path.Machining on ladder sprocket wheel guide rail bracket 11
Calabash shape fabrication hole, the lifting of convenient the whole series tensioner, and it is easy for installation, it is elegant in appearance.
As shown in Figure 1, Figure 2, Figure 6 shows, the guide rail bracket axis of guide 4, driven chain wheel shaft are also sliding combined with every load-bearing guide rail 1
3 and the guide rail bracket axis of guide 4 ensure the stable operation of a whole set of tensioner.
Reinforcing plate 5 is welded between ladder sprocket wheel guide rail bracket 11 and the guide rail bracket axis of guide 4, guide rail is improved by reinforcing plate 5
The rigidity and amount of deflection of the frame axis of guide 4.
Claims (7)
1. a kind of tensioner of escalator stair, including driven chain wheel shaft, driven sprocket and load-bearing guide rail, its feature exist
In the driven sprocket is rotatably installed on driven chain wheel shaft, and the end of the driven chain wheel shaft is provided with rotation roller, driven chain
Wheel shaft is slidably supported on the load-bearing guide rail by rotation roller.
2. the tensioner of escalator stair as claimed in claim 1, it is characterised in that the driven sprocket includes rotating
Inner sleeve on driven chain wheel shaft and the annular wheel plate of inner sleeve periphery is bolted on, the outer marginal zone of annular wheel plate
There are the gear teeth being engaged with step chain.
3. the tensioner of escalator stair as claimed in claim 2, it is characterised in that the inner sleeve and driven chain wheel shaft
Between be rotatably assorted by rolling bearing.
4. the tensioner of escalator stair as claimed in claim 3, it is characterised in that the rolling bearing is biserial depth
Ditch ball bearing.
5. the tensioner of escalator stair as claimed in claim 2, it is characterised in that the outer wall of the inner sleeve is provided with ring
Shape fixed plate, the annular wheel plate are superposed with ring-type fixing plate near inner margin portion, and are interfixed by the bolt.
6. the tensioner of escalator stair as claimed in claim 1, it is characterised in that the tensioner also includes set
The axle sleeve being located on driven chain wheel shaft, and the force pull bar being connected with axle sleeve.
7. the tensioner of escalator stair as claimed in claim 6, it is characterised in that the axle sleeve is located at driven sprocket
Between rotation roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621129754.8U CN206142642U (en) | 2016-10-17 | 2016-10-17 | Automatic overspeed device tensioner on staircase ladder way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621129754.8U CN206142642U (en) | 2016-10-17 | 2016-10-17 | Automatic overspeed device tensioner on staircase ladder way |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206142642U true CN206142642U (en) | 2017-05-03 |
Family
ID=58621780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621129754.8U Active CN206142642U (en) | 2016-10-17 | 2016-10-17 | Automatic overspeed device tensioner on staircase ladder way |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206142642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113104715A (en) * | 2021-03-22 | 2021-07-13 | 日立电梯（广州）自动扶梯有限公司 | Escalator end vertical assembly structure and assembling method thereof |
-
2016
- 2016-10-17 CN CN201621129754.8U patent/CN206142642U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113104715A (en) * | 2021-03-22 | 2021-07-13 | 日立电梯（广州）自动扶梯有限公司 | Escalator end vertical assembly structure and assembling method thereof |
| CN113104715B (en) * | 2021-03-22 | 2024-05-28 | 日立电梯（广州）自动扶梯有限公司 | Escalator end vertical group structure and assembling method thereof |
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