CN108946419B - Step chain tensioning frame of escalator - Google Patents
Step chain tensioning frame of escalator Download PDFInfo
- Publication number
- CN108946419B CN108946419B CN201810991034.XA CN201810991034A CN108946419B CN 108946419 B CN108946419 B CN 108946419B CN 201810991034 A CN201810991034 A CN 201810991034A CN 108946419 B CN108946419 B CN 108946419B
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- China
- Prior art keywords
- frame
- escalator
- step chain
- guide rails
- compression spring
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- 230000006835 compression Effects 0.000 claims abstract description 36
- 238000007906 compression Methods 0.000 claims abstract description 36
- 239000004677 Nylon Substances 0.000 claims description 8
- 229920001778 nylon Polymers 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B23/00—Component parts of escalators or moving walkways
- B66B23/16—Means allowing tensioning of the endless member
- B66B23/18—Means allowing tensioning of the endless member for carrying surfaces
Landscapes
- Escalators And Moving Walkways (AREA)
Abstract
The invention provides a step chain tensioning frame of an escalator, which comprises two parallel support guide rails, a sliding frame, a connecting shaft and step chain sprockets, wherein the sliding frame is slidably arranged on the two support guide rails, the connecting shaft is rotatably arranged on the sliding frame, the step chain sprockets are arranged at two ends of the connecting shaft, and the two compression springs are arranged on the connecting shaft; two sides of the sliding frame are respectively propped against the inner side surfaces of the two supporting guide rails; the two compression springs are symmetrically arranged and parallel to the supporting guide rail, one end of each compression spring is fixedly connected with the sliding frame, and the other end of each compression spring is fixedly connected with the fixing frame of the escalator. The tensioning frame can ensure synchronous tensioning of two step chains and prevent the steps from tilting.
Description
Technical Field
The invention relates to the technical field of escalator, in particular to a step chain tensioning frame of an escalator.
Background
The escalator is provided with two step chains which are respectively connected with two ends of a step, the step chains are loosened after being used for a period of time, so that the step chains are tensioned by a tensioning mechanism, the existing tensioning mechanism pulls chain wheels of the two step chains through tensioning springs, the step chains are re-tensioned under the pulling force of the tensioning springs after being loosened, the two step chain wheels are respectively and independently tensioned in the general tensioning mechanism, synchronous tensioning of the two step chains cannot be guaranteed, and step inclination is easy to be caused, so that safety accidents are caused.
It can be seen that there is a need for improvements and improvements in the art.
Disclosure of Invention
In view of the above-described drawbacks of the prior art, an object of the present invention is to provide a step chain tensioner for an escalator, which can ensure synchronous tensioning of two step chains and prevent tilting of the steps.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the step chain tensioning frame of the escalator comprises two parallel support guide rails, a sliding frame, a connecting shaft, step chain sprockets and two compression springs, wherein the sliding frame is slidably arranged on the two support guide rails, the connecting shaft is rotatably arranged on the sliding frame, the step chain sprockets are arranged at two ends of the connecting shaft; two sides of the sliding frame are respectively propped against the inner side surfaces of the two supporting guide rails; the two compression springs are symmetrically arranged and parallel to the supporting guide rail, one end of each compression spring is fixedly connected with the sliding frame, and the other end of each compression spring is fixedly connected with the fixing frame of the escalator.
In the step chain tensioning frame of the escalator, the sliding frame comprises two side beams, a connecting beam vertically connected between the side beams and a door-shaped frame connected between the side beams; the side beams are parallel to the support guide rails and are propped against the inner side surfaces of the corresponding support guide rails; the connecting shafts are rotatably connected to the middle parts of the two side beams, the connecting beams are arranged on the front sides of the connecting shafts, and the door-shaped frames are arranged on the rear sides of the connecting shafts; the compression springs are connected with the corresponding side beams.
In the step chain tensioning frame of the escalator, the side beams are L-shaped beams consisting of transverse plates and vertical plates, and the transverse plates are provided with at least two pulleys in the length direction, and the pulleys are propped against the inner side surfaces of the corresponding supporting guide rails.
In the step chain tensioning frame of the escalator, a plurality of nylon base plates are arranged on the transverse plates of the side beams in the length direction and are abutted with the upper surfaces of the corresponding support guide rails through the nylon base plates.
In the step chain tensioning frame of the escalator, the side beams are provided with position pointers, the supporting guide rails are provided with corresponding position scales, the position scales are provided with scales, the position scales are parallel to the supporting guide rails, and the position pointers can move along with the sliding frame and point to the corresponding scales on the position scales.
In the step chain tensioning frame of the escalator, the position scale is arranged above the side beams, one surface provided with the scale is arranged upwards, and two ends of the position scale are respectively connected with the bottom of the supporting guide rail through a C-shaped frame.
In the step chain tensioning frame of the escalator, the bottom of the supporting guide rail is provided with a mounting groove, and the C-shaped frame is fixed on the mounting groove through bolts.
The step chain tensioning frame of the escalator further comprises two U-shaped step wheel guide plates, wherein U-shaped sliding grooves are formed in the step wheel guide plates and used for guiding bottom wheels of the steps; the step wheel guide plate is wound between the connecting shaft and the connecting beam and is fixedly connected with the connecting beam through the connecting seat, one end of the connecting seat is connected with the connecting beam through a bolt, and two sides of the connecting seat are connected with the step wheel guide plate through bolts.
In the step chain tensioning frame of the escalator, the compression spring is arranged at the rear of the sliding frame, a pull rod is arranged in the compression spring in a penetrating mode, the front end of the compression spring is fixedly connected with a fixing frame of the escalator, the rear end of the compression spring is fixedly connected with the pull rod, and the front end of the pull rod is in threaded connection with a pull block arranged at the top of the side beam.
In the step chain tensioning frame of the escalator, the supporting guide rail is fixedly connected with the fixing frame of the escalator through a plurality of connecting pieces.
The beneficial effects are that:
the invention provides a step chain tensioning frame of an escalator, which is characterized in that two step chain sprockets are arranged on a sliding frame through a supporting guide rail and the sliding frame, and synchronous rotation of the two step chain sprockets is ensured through a connecting shaft.
Drawings
Fig. 1 is a schematic structural view of a step chain tensioner of an escalator provided by the present invention.
Fig. 2 is an enlarged view of the S portion in fig. 1.
Fig. 3 is a schematic structural view of a step wheel guide plate in the step chain tensioning frame of the escalator provided by the invention.
Detailed Description
The invention provides a step chain tensioning frame of an escalator, which aims to make the purposes, technical schemes and effects of the invention clearer and more definite, and further detailed description of the invention is provided below by referring to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Herein, the latter means the moving direction of the carriage when the compression spring is extended; the front direction is the moving direction of the carriage when the compression spring is contracted.
Referring to fig. 1 to 3, the present invention provides a step chain tensioning frame of an escalator, comprising two parallel support rails 1, a carriage 2 slidably disposed on the two support rails, a connecting shaft 3 rotatably disposed on the carriage, step chain sprockets 4 disposed at both ends of the connecting shaft, and two compression springs 5; the two sides of the sliding frame 2 are respectively propped against the inner side surfaces (namely the opposite surfaces of the two support guide rails) of the two support guide rails 1; the two compression springs are symmetrically arranged and parallel to the supporting guide rail, one end of each compression spring is fixedly connected with the sliding frame, and the other end of each compression spring is fixedly connected with the fixing frame of the escalator.
This tensioning frame is through setting up supporting rail and balladeur train, sets up two step chain sprocket on the balladeur train and guarantee its synchronous rotation through the connecting axle, when step chain is lax, the balladeur train wholly removes under compression spring effect and tightens the step chain again, and because the balladeur train both sides offset with the medial surface of two supporting rail respectively, can't take place the swing, guaranteed the travel distance of both sides unanimously to ensure two step chain synchronous tensioning, prevent the step slope, thereby improve escalator's security.
Specifically, the carriage 2 includes two side beams 2.1, a connecting beam 2.2 vertically connected between the side beams, and a door-shaped frame 2.3 connected between the side beams; the side beams are parallel to the support guide rails 1 and are propped against the inner side surfaces of the corresponding support guide rails; the connecting shaft 3 is rotatably connected to the middle parts of the two side beams 2.1, the connecting beam is arranged on the front side of the connecting shaft, and the door-shaped frame is arranged on the rear side of the connecting shaft; the compression springs 5 are connected to the corresponding side beams 2.1. The sliding frame has the advantages of simple structure, small weight and high structural strength, and can ensure that the sliding frame is not deformed in the use process.
The connecting shaft 3 is arranged on the side beams 2.1 through bearing blocks 3.1 and bearings to reduce friction.
Further, the side beam 2.1 is an L-shaped beam composed of a cross plate 2.1a and a vertical plate 2.1b, and the cross plate is provided with at least two pulleys 2.1c in the length direction, and the pulleys are abutted against the inner side surfaces of the corresponding support rails. The friction can be greatly reduced through the pulley, smooth movement of the sliding frame is ensured, so that the tensioning frame can timely tension the step chain, and the side beam is arranged to be an L-shaped beam, so that the pulley can be conveniently installed on one hand, and the weight of the sliding frame can be reduced on the other hand.
In this embodiment, the cross plate 2.1a of the side beam is provided with a plurality of nylon base plates 2.4 in the length direction, and is abutted against the upper surface of the corresponding support rail 1 through the nylon base plates. Because the sliding frame is supported by the support guide rail, the side beam is required to be supported on the support guide rail, and the friction force between the side beam and the support guide rail can be reduced by arranging the nylon base plate, smooth and stable movement of the sliding frame is ensured, and scratch of the side beam and the support guide rail is prevented. The nylon backing plate is preferably detachable and can be replaced after being worn to a certain extent.
Preferably, the side beams 2.1 are provided with position pointers 2.5, the support rails 1 are provided with corresponding position scales 2.6, the position scales are provided with scales, the position scales are parallel to the support rails, and the position pointers 2.5 can move along with the carriage 2 and point to corresponding scales on the position scales 2.6. The elongation condition of the step chain can be intuitively and rapidly monitored through the position pointer and the position scale, so that the abnormal condition can be found in time and the maintenance can be carried out.
For convenient reading, the position scale 2.6 is arranged above the side beam 2.1, the scale surface of the position scale is arranged upwards, and two ends of the position scale are respectively connected with the bottom of the support guide rail 1 through a C-shaped frame 2.7. In fact, the space inside the escalator for the maintenance personnel to move is small, if the surface provided with the scale is arranged vertically, the maintenance personnel needs to retreat a certain distance to be visible, the reading is troublesome, the maintenance personnel only needs to lower the head to be visible, and the reading is convenient.
Further, as shown in fig. 1, a mounting groove is formed in the bottom of the support rail 1, and the C-shaped frame 2.7 is fixed to the mounting groove through a bolt. The position of the position scale can be adjusted according to the actual position of the position pointer, so that the position of the position scale is ensured to be reasonable.
In this embodiment, the step chain tensioning frame of the escalator further includes two U-shaped step wheel guide plates 6, on which U-shaped sliding grooves 6.1 are provided, the sliding grooves being used for guiding the bottom wheels of the steps; the step wheel guide plate is wound between the connecting shaft 3 and the connecting beam 2.2 and is fixedly connected with the connecting beam through the connecting seat 6.2, one end of the connecting seat is connected with the connecting beam through a bolt, and two sides of the connecting seat are connected with the step wheel guide plate through bolts. Through setting up the spout in order to lead the return pulley of step, can guarantee that the step turns smoothly, and set up the step wheel deflector into the U-shaped, loosen and can directly take out after being connected with connecting seat 6.2 when dismantling, need not to dismantle connecting axle 3 earlier, it is convenient to install and remove.
Preferably, as shown in fig. 1 and 2, the compression spring 5 is arranged at the rear of the carriage 2, a pull rod 5.1 is penetrated in the compression spring, the front end of the compression spring is fixedly connected with the fixing frame of the escalator, the rear end of the compression spring is fixedly connected with the pull rod, and the front end of the pull rod is in threaded connection with a pull block 2.8 arranged at the top of the side beam 2.1. The length of the compression spring can be reduced, and the rigidity of the compression spring is ensured to be enough.
Specifically, the supporting guide rail 1 is fixedly connected with a fixing frame of the escalator through a plurality of connecting sheets 1.1.
It will be understood that equivalents and modifications will occur to those skilled in the art based on the present invention and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention.
Claims (4)
1. The step chain tensioning frame of the escalator is characterized by comprising two parallel support guide rails, a sliding frame which is slidably arranged on the two support guide rails, a connecting shaft which is rotatably arranged on the sliding frame, step chain sprockets which are arranged at two ends of the connecting shaft, and two compression springs; two sides of the sliding frame are respectively propped against the inner side surfaces of the two supporting guide rails; the two compression springs are symmetrically arranged and parallel to the supporting guide rail, one end of each compression spring is fixedly connected with the sliding frame, and the other end of each compression spring is fixedly connected with the fixing frame of the escalator;
the sliding frame comprises two side beams, a connecting beam vertically connected between the two side beams and a door-shaped frame connected between the two side beams; the side beams are parallel to the support guide rails and are propped against the inner side surfaces of the corresponding support guide rails; the connecting shafts are rotatably connected to the middle parts of the two side beams, the connecting beams are arranged on the front sides of the connecting shafts, and the door-shaped frames are arranged on the rear sides of the connecting shafts; the compression springs are connected with the corresponding side beams; the side beam is an L-shaped beam formed by a transverse plate and a vertical plate, and the transverse plate is provided with at least two pulleys in the length direction, and the pulleys are propped against the inner side surfaces of the corresponding supporting guide rails;
the transverse plates of the side beams are detachably provided with a plurality of nylon base plates in the length direction and are abutted with the upper surfaces of the corresponding support guide rails through the nylon base plates;
the side beam is provided with a position pointer, the support guide rail is provided with a corresponding position scale, the position scale is provided with a scale, the position scale is parallel to the support guide rail, and the position pointer can move along with the carriage and points to the corresponding scale on the position scale; the position scale is arranged above the side beam, one surface provided with the scale is arranged upwards, and two ends of the position scale are respectively connected with the bottom of the support guide rail through a C-shaped frame;
the bottom of the support guide rail is provided with a mounting groove, and the C-shaped frame is fixed on the mounting groove through bolts.
2. The step chain tensioner of claim 1, further comprising two U-shaped step wheel guide plates, wherein the step wheel guide plates are provided with U-shaped sliding grooves for guiding the bottom wheels of the steps; the step wheel guide plate is wound between the connecting shaft and the connecting beam and is fixedly connected with the connecting beam through the connecting seat, one end of the connecting seat is connected with the connecting beam through a bolt, and two sides of the connecting seat are connected with the step wheel guide plate through bolts.
3. The step chain tensioning frame of an escalator according to claim 1, wherein the compression spring is arranged at the rear of the carriage, a pull rod is penetrated in the compression spring, the front end of the compression spring is fixedly connected with a fixing frame of the escalator, the rear end of the compression spring is fixedly connected with the pull rod, and the front end of the pull rod is in threaded connection with a pull block arranged at the top of the side beam.
4. The step chain tensioner of claim 1, wherein the support rail is fixedly coupled to a stationary frame of the escalator by a plurality of coupling tabs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810991034.XA CN108946419B (en) | 2018-08-28 | 2018-08-28 | Step chain tensioning frame of escalator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810991034.XA CN108946419B (en) | 2018-08-28 | 2018-08-28 | Step chain tensioning frame of escalator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108946419A CN108946419A (en) | 2018-12-07 |
| CN108946419B true CN108946419B (en) | 2023-09-19 |
Family
ID=64473358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810991034.XA Active CN108946419B (en) | 2018-08-28 | 2018-08-28 | Step chain tensioning frame of escalator |
Country Status (1)
| Country | Link |
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| CN (1) | CN108946419B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3710044A1 (en) * | 1987-03-27 | 1988-10-06 | Bosch Gmbh Robert | CONVEYOR |
| JP2008162800A (en) * | 2007-01-05 | 2008-07-17 | Toshiba Elevator Co Ltd | Driven wheel support device of passenger conveyor |
| JP2009256033A (en) * | 2008-04-15 | 2009-11-05 | Mitsubishi Electric Corp | Footstep chain tensioner device of passenger conveyor |
| CN104860182A (en) * | 2015-04-07 | 2015-08-26 | 日立电梯（广州）自动扶梯有限公司 | Tension device |
| CN205703211U (en) * | 2016-05-04 | 2016-11-23 | 苏州达恩克精密机械有限公司 | The chain assembly line of electrically heated rod kludge |
| CN106672776A (en) * | 2017-03-10 | 2017-05-17 | 江南嘉捷电梯股份有限公司 | Stair chain rolling type tensioning device |
| CN206288582U (en) * | 2016-12-02 | 2017-06-30 | 郑州明珠实业有限公司 | Pipe chain conveying device |
| CN206486163U (en) * | 2017-01-23 | 2017-09-12 | 塞纳自动梯（佛山）有限公司 | A kind of escalator step slewing equipment |
| CN208932770U (en) * | 2018-08-28 | 2019-06-04 | 塞纳自动梯（佛山）有限公司 | A kind of step chains tensioning frame of escalator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113371393A (en) * | 2021-08-16 | 2021-09-10 | 烟台佑利技术有限公司 | Industrial production belt conveyor |
-
2018
- 2018-08-28 CN CN201810991034.XA patent/CN108946419B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3710044A1 (en) * | 1987-03-27 | 1988-10-06 | Bosch Gmbh Robert | CONVEYOR |
| JP2008162800A (en) * | 2007-01-05 | 2008-07-17 | Toshiba Elevator Co Ltd | Driven wheel support device of passenger conveyor |
| JP2009256033A (en) * | 2008-04-15 | 2009-11-05 | Mitsubishi Electric Corp | Footstep chain tensioner device of passenger conveyor |
| CN104860182A (en) * | 2015-04-07 | 2015-08-26 | 日立电梯（广州）自动扶梯有限公司 | Tension device |
| CN205703211U (en) * | 2016-05-04 | 2016-11-23 | 苏州达恩克精密机械有限公司 | The chain assembly line of electrically heated rod kludge |
| CN206288582U (en) * | 2016-12-02 | 2017-06-30 | 郑州明珠实业有限公司 | Pipe chain conveying device |
| CN206486163U (en) * | 2017-01-23 | 2017-09-12 | 塞纳自动梯（佛山）有限公司 | A kind of escalator step slewing equipment |
| CN106672776A (en) * | 2017-03-10 | 2017-05-17 | 江南嘉捷电梯股份有限公司 | Stair chain rolling type tensioning device |
| CN208932770U (en) * | 2018-08-28 | 2019-06-04 | 塞纳自动梯（佛山）有限公司 | A kind of step chains tensioning frame of escalator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108946419A (en) | 2018-12-07 |
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