CN111410112A

CN111410112A - Guide rail device and moving sidewalk

Info

Publication number: CN111410112A
Application number: CN202010223844.8A
Authority: CN
Inventors: 谢雪姣; 杨靖
Original assignee: Hitachi Elevator China Co Ltd; Hitachi Elevator Guangzhou Escalator Co Ltd
Current assignee: Hitachi Elevator China Co Ltd; Hitachi Elevator Guangzhou Escalator Co Ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-07-14

Abstract

The invention relates to a guide rail device and a moving sidewalk, comprising: side supporting plates; the driving side guide rail mechanism is arranged on the side supporting plate and is used for being arranged on the driving side of the main frame body; and the driven side guide rail mechanism is arranged on the side supporting plate and is arranged at intervals with the driving side guide rail mechanism, and the driven side guide rail mechanism is used for being arranged at the driven side of the main frame body. Due to the guiding and restraining effects of the driving side guide rail mechanism and the driven side guide rail mechanism, the step roller can ensure that the roller is stable, the swinging and jumping generated by vibration are well limited, so that the step roller can be reliably matched with the step chain wheel when the step roller moves towards the driven side (or moves towards the driving side from the driven side), the step operation is stable and reliable, and the riding comfort level and the experience feeling of the escalator are improved.

Description

Guide rail device and moving sidewalk

Technical Field

The invention relates to the technical field of escalators, in particular to a guide rail device and a moving sidewalk.

Background

At present, more and more public occasions are provided with escalators to replace walking of people so as to relieve fatigue caused by long-time walking or carrying of heavy articles. Conventionally, an escalator is composed of steps, step sprockets, step rollers, and a driving device, wherein the driving device drives the step sprockets to roll to drive the steps to rotate, and the step rollers support the steps. However, when the existing escalator operates, due to the influence of factors such as mechanical vibration and assembly dimension errors, the step roller is easy to swing and jump, and then the step roller and the step chain wheel cannot be reliably matched, so that the step operation is unstable, and the riding experience and comfort of the escalator are influenced.

Disclosure of Invention

Therefore, a guide rail device and a moving sidewalk are needed to be provided, and the problem that in the prior art, the step operation is unstable, and the riding experience and the comfort are poor is solved.

In one aspect, the present application provides a rail apparatus, comprising:

side supporting plates;

the driving side guide rail mechanism is arranged on the side supporting plate and is used for being arranged on the driving side of the main frame body; and

the driven side guide rail mechanism is arranged on the side supporting plate and is arranged at intervals with the driving side guide rail mechanism, and the driven side guide rail mechanism is used for being arranged on the driven side of the main frame body.

The guide rail device of the scheme is applied to an escalator (such as a moving pavement) and is used for ensuring the smooth and reliable running of steps. Specifically, when in use, the side supporting plate is firstly installed on the side part of the main frame body to form an installation foundation; and then, assembling each step and the corresponding step roller on the main frame body, and driving each step to rotate along with the driving equipment so that the step rollers can synchronously roll. Due to the guiding and restraining effects of the driving side guide rail mechanism and the driven side guide rail mechanism, the step roller can ensure that the roller is stable, the swinging and jumping generated by vibration are well limited, so that the step roller can be reliably matched with the step chain wheel when the step roller moves towards the driven side (or moves towards the driving side from the driven side), the step operation is stable and reliable, and the riding comfort level and the experience feeling of the escalator are improved.

The technical solution of the present application is further described below:

in one embodiment, the driving side guide rail mechanism and the driven side guide rail mechanism both comprise a forward side guide rail, the top surface of the forward side guide rail is convexly provided with a limiting protrusion, and the limiting protrusion is used for being arranged on the outer side of the step roller.

In one embodiment, the driving side guide rail mechanism and the driven side guide rail mechanism further comprise guide wheels arranged on the side supporting plates, and the guide wheels are used for being arranged at the positions of the comb tooth inlets and outlets of the main frame body.

In one embodiment, the driving side guide rail mechanism and the driven side guide rail mechanism further comprise support guide rails arranged on the side support plates, and the support guide rails are used for being arranged at the positions of the comb tooth inlets and outlets of the main frame body and below the wheel shafts of the step rollers.

In one embodiment, the driving side guide rail mechanism further comprises a transition guide rail disposed on the side support plate, and the transition guide rail is engaged between the advancing side guide rail and the step sprocket.

In one embodiment, the driving side guide rail mechanism further comprises a height adjusting mechanism, the height adjusting mechanism is arranged on the side supporting plate and connected with the transition guide rail, and the height adjusting mechanism is used for driving the transition guide rail to ascend or descend.

In one embodiment, the height adjusting mechanism comprises a supporting block arranged on the side supporting plate, a threaded rod rotatably arranged on the supporting block, and a nut in threaded connection with the threaded rod, wherein the nut is connected with the transition guide rail, and the nut is in threaded connection with the threaded rod.

In one embodiment, the driven side guide rail mechanism further includes a rotary guide rail disposed on the side supporting plate, the rotary guide rail is provided with a straight line segment, the driving side guide rail mechanism and the driven side guide rail mechanism further include additional guide rails disposed on the side supporting plate, the additional guide rails are opposite to the transition guide rails, the additional guide rails are also opposite to the straight line segment, and a projection of the advancing side guide rail and a projection of the additional guide rails are in seamless butt joint in a direction perpendicular to a wheel axis of the step chain wheel.

In one embodiment, the driven side rail mechanism further comprises a forward side pressure rail, one end of the forward side pressure rail is arranged on the side supporting plate, and the other end of the forward side pressure rail extends to the upper part of the step roller.

In addition, the application also provides a moving pavement, which comprises the guide rail device.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an active side rail mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic structural diagram of a driven side rail mechanism according to an embodiment of the present invention.

Description of reference numerals:

10. side supporting plates; 20. a driving side guide rail mechanism; 30. a driven side guide rail mechanism; 40. an advancing side guide rail; 41. a limiting bulge; 50. supporting the guide rail; 60. a transition rail; 70. a height adjustment mechanism; 80. a rotating guide rail; 81. a straight line segment; 90. adding a guide rail; 100. pressing rails at the advancing side; 200. a step roller; 300. a step sprocket; 400. a main frame body.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The embodiment of the application provides a moving sidewalk, in particular to a moving walking device capable of replacing people to walk, which is widely applied to various public places nowadays. For example, in an airport, a moving sidewalk is paved on the ground, and the head end and the tail end of the moving sidewalk are respectively connected between a luggage taking point and an airport hall, so that passengers getting off the airport can carry a luggage case with large weight, and the moving sidewalk can move automatically after people carry the luggage case to stand on the moving sidewalk without dragging the heavy luggage case to walk, thereby achieving the effects of labor saving and time saving. The convenience of people in public places is greatly improved.

In general, travelators are installed between two locations at a relatively large distance (typically tens of meters to tens of meters, etc.), either horizontally or at a small angle. The moving sidewalk mainly comprises a main frame body 400, driving equipment, steps, step rollers 200, step chain wheels 300, handrail belts, a skirt panel, a guide rail device, a control cabinet and some auxiliary components. The steps are connected in sequence to form a pedal structure for passengers to stand. The driving device generally comprises a motor, a reducer, etc. for outputting a rotating power to rotate the step sprocket 300, and the step sprocket 300 can further drive the steps to operate. It will be understood that the drive equipment is normally arranged on one side of the travelator and that the side on which it is arranged is the drive side, while the side opposite to the drive side is arranged as the driven side.

In particular, to ensure stable operation of the steps while enhancing support for passengers, the steps are also rotated within the track arrangement by the step roller 200.

Referring to fig. 1 and 3, a rail device according to an embodiment of the present application is shown, which includes: a side support plate 10, a driving side guide mechanism 20, and a driven side guide mechanism 30. Since the longitudinal section of the travelator is substantially in the form of a U with an upward opening, the side support plates 10 referred to herein comprise support plate bodies on both sides of the left and right side plates, but for the convenience of the description of the subsequent schemes, only the side support plate 10 on one side will be described as an example. It will be appreciated that the side support plate 10 may be made of a high strength metal material such as stainless steel, alloy steel, etc.

The driving side guide rail mechanism 20 is disposed on the side support plate 10 and is arranged on the driving side of the main frame 400; the driven side guide mechanism 30 is disposed on the side support plate 10 and spaced apart from the driving side guide mechanism 20, and the driven side guide mechanism 30 is disposed on the driven side of the main frame 400.

In summary, the implementation of the technical solution of the present embodiment has the following beneficial effects: the guide rail device of the scheme is applied to an escalator (such as a moving pavement) and is used for ensuring the smooth and reliable running of steps. Specifically, in use, the side support plate 10 is first attached to the side portion of the main frame 400 to form an attachment base; next, each step and the corresponding step roller 200 are assembled to the main frame 400, and the step rollers 200 can be synchronously rolled as the driving device rotates each step. Due to the guiding and restraining effects of the driving side guide rail mechanism 20 and the driven side guide rail mechanism 30, the step roller 200 can ensure that the roller is stable, and the swinging and jumping generated by vibration are well limited, so that the step roller 200 can be reliably matched with the step chain wheel 300 when the driving side moves to the driven side (or moves from the driven side to the driving side), the step operation is ensured to be stable and reliable, and the riding comfort and the experience feeling of the escalator are improved.

With continued reference to fig. 2, in some embodiments, the driving side rail mechanism 20 and the driven side rail mechanism 30 each include a forward side rail 40, and a limiting protrusion 41 is protruded from a top surface of the forward side rail 40, and the limiting protrusion 41 is configured to be disposed outside the step roller 200. That is, in the structural arrangement, the two sides of the step in the width direction are provided with the advancing side guide rails 40, the two advancing side guide rails 40 are provided with the limiting protrusions 41, and the two limiting protrusions 41 are located at the outer sides of the step rollers 200 at the two sides, so that the limiting protrusions 41 can limit the step rollers 200 laterally, the step rollers 200 are prevented from swinging left and right when the steps operate, and the stable and reliable operation of the steps is ensured. However, it should be noted that the limiting protrusion 41 needs to ensure that a gap of not more than 2mm is maintained with the outer side surface of the step roller 200 to ensure that the step can be installed without interference, and the adverse effects of machining dimension errors and installation dimension errors are eliminated.

Further, in some embodiments, the driving side rail mechanism 20 and the driven side rail mechanism 30 each further include a guide wheel provided on the side support plate 10, and the guide wheel is configured to be disposed at a comb entrance/exit position of the main frame 400. Through the arrangement of the guide wheel, a small gap is formed between the guide wheel and the safety boundaries on the two sides of the step, so that the step can be limited from swinging left and right when entering and exiting the comb teeth, and the damage caused by scraping and collision of the front end teeth of the step and the comb teeth in the left and right directions is avoided.

Further, in some embodiments, each of the driving side guide mechanism 20 and the driven side guide mechanism 30 further includes a support rail 50 disposed on the side support plate 10, and the support rail 50 is configured to be disposed at a comb entrance position of the main frame 400 and below the wheel axle of the step roller 200. The supporting guide rail 50 is arranged below the wheel shaft of the step roller 200, and the main purpose is to form longitudinal support for the wheel shaft of the step roller 200 by the supporting guide rail 50 after the moving pavement runs for a long time under high load, if the rubber layer of the step roller is aged and peeled off, so that the situation that the step inclines to one side seriously to cause serious tilting of the other side is avoided, and the step is prevented from being damaged due to collision between the front end teeth of the step and comb teeth in the height direction. That is, the safety and reliability of the moving walkway can be greatly improved by providing the support rail 50.

For the driving side, since the driving device and the step sprocket 300 functioning as the driving are arranged, how to make the step roller 200 transition to the step sprocket 300 reliably is a problem to be solved. In this regard, in some embodiments, the drive side guide mechanism 20 further includes a transition guide 60, the transition guide 60 is disposed on the side support plate 10, and the transition guide 60 is engaged between the forward side guide 40 and the step sprocket 300. By providing the transition guide rail 60, the transition guide rail 60 can effectively connect the step roller 200 with the step sprocket 300, so that the step roller 200 can smoothly enter the step sprocket 300, and the step roller 200 is prevented from being collided with the tooth grooves of the step sprocket 300 to generate noise and damage the step roller 200.

Specifically, in the above embodiment, the transition guide 60 is fixed to the side surface of the side support plate 10 by at least one (preferably three) fastening bolts. The installation structure is simple, and the assembly and disassembly are convenient. The top surface of the transition guide rail 60 may slightly exceed the top surface of the side support plate 10, or the top surface of the side support plate 10 forms a concave step structure, so that the top surface of the transition guide rail 60 is higher than the top surface of the side support plate 10, thereby enabling the transition guide rail 60 to perform a good transition guiding function on the step roller 200. Preferably, the transition track 60 is formed with a lead-out structure near the end of the step sprocket 300 to allow the step roller 200 to slide more easily onto the step sprocket 300. Specifically, the lead-out structure may be, but is not limited to, a chamfer, a fillet, a ramp, and the like.

Referring to fig. 3, in actual operation, due to the long-term reciprocating operation of the steps, the step roller 200 and the transition guide rail 60 are frequently in friction contact for a long time, under the loading of the step load, the friction and the wear of the transition guide rail 60 are severe, that is, the height of the working surface (i.e., the upper surface) of the transition guide rail 60 is reduced, and further the height of the step roller 200 is also reduced, so that the step roller 200 and the step sprocket 300 are seriously collided and interfered, and even the step roller 200 cannot enter the step sprocket 300. In this regard, in some embodiments, the active side guide rail mechanism 20 further includes a height adjusting mechanism 70, the height adjusting mechanism 70 is disposed on the side support plate 10 and connected to the transition guide rail 60, and the height adjusting mechanism 70 is used for driving the transition guide rail 60 to ascend or descend. Through the arrangement of the height adjusting mechanism 70, the height position of the transition guide rail 60 can be adjusted in time when the transition guide rail 60 is subjected to friction and wear, and the transition guiding capability of the transition guide rail 60 is always ensured.

Specifically, in some embodiments, the height adjusting mechanism 70 includes a support block disposed on the side support plate 10, a threaded rod rotatably disposed on the support block, and a nut threadedly coupled with the threaded rod, the nut being coupled with the transition rail 60, and the nut being threadedly coupled with the threaded rod. Wherein, the supporting shoe passes through the welding mode to be fixed in the side of collateral branch fagging 10 for the supporting shoe can stabilize and support threaded rod and nut. The lower end of the threaded rod is rotatably installed in a blind hole preset in the supporting block, and at the moment, the threaded rod can only rotate along the axis of the threaded rod, and does not move up and down. The nut is welded and fixed with the bottom surface of the transition guide rail 60, and the nut is in threaded connection with the threaded rod. When the height of the transition guide rail 60 needs to be adjusted, firstly, the fastening bolt for fixing the transition guide rail is screwed off (or if the fastening bolt is unscrewed if the hole site long slot hole is matched with the fastening bolt), then, only the threaded rod needs to be screwed, and the threaded rod can drive the nut to ascend or descend by virtue of the thread transmission pair, so that the aim of flexibly adjusting the working height of the transition guide rail 60 is fulfilled. The height adjusting mechanism 70 formed by the structure has the advantages of simple structure, good adjustable controllability, low manufacturing cost and convenient and labor-saving operation.

Wherein, when the threaded rod needs to be screwed, special tools such as a spanner need to be used, and the spanner needs certain operating space to effectively operate. At this moment, in order to avoid causing to block special tools such as a spanner and interfere, the position that collateral branch fagging 10 is close to the threaded rod has seted up the breach this moment, and the horizontal projection of threaded rod falls into this breach region, and the breach can provide the sufficient operating space of spanner to avoid interfering the problem and taking place.

Of course, it should be noted that, in some other embodiments, in order to achieve the longitudinal height adjustment of the transition guide rail 60, another height adjustment mechanism 70 in the prior art may also be used, for example, a counterweight structure composed of a fixed pulley, a sliding block, a counterweight rope and a counterweight block, and the weight of the counterweight block is increased or decreased, so that the sliding block can move up and down to achieve the purpose of adjusting the transition guide rail 60 to move up and down; or, the side supporting plate 10 is provided with a cylinder or a linear motor, the cylinder or the linear motor is directly connected with the transition guide rail 60, and the transition guide rail 60 is pushed and pulled to ascend or descend by outputting telescopic power; or a scissor mechanism, a gear rack mechanism and the like can be adopted, and the selection can be specifically carried out according to the actual requirement.

Or, in order to simplify the structure of the track device and reduce the manufacturing and later maintenance costs, in other embodiments, it may be considered that the height adjusting mechanism 70 is not provided, but the portion of the transition track 60 that is easily abraded by friction is made of a more wear-resistant material, or a wear-resistant layer is formed on the portion that is easily abraded by processes such as adhesion, coating, sputtering, and the like, so as to prolong the service life of the transition track 60 and avoid the reduction of the height of the working surface due to abrasion, and thus, the step roller 200 can be ensured to be moved onto the step sprocket 300 in a reliable transition manner.

With continued reference to fig. 1, in some embodiments, the driven side guide mechanism 30 further includes a rotating guide 80 disposed on the side support plate 10, the rotating guide 80 has a straight line segment 81, the driving side guide mechanism 20 and the driven side guide mechanism 30 further include an additional guide rail 90 disposed on the side support plate 10, the additional guide rail 90 is opposite to the transition guide 60, the additional guide rail 90 is further opposite to the straight line segment 81, and a projection of the advancing side guide 40 and a projection of the additional guide rail 90 are in seamless contact in a direction perpendicular to the wheel axis of the step chain wheel 300. Thus, the additional guide rail 90 can further limit the lateral movement of the step roller 200, thereby preventing the step from snaking.

With continued reference to fig. 2, in some embodiments, the driven side rail mechanism 30 further includes a forward side pressure rail 100, one end of the forward side pressure rail 100 is disposed on the side support plate 10, and the other end of the forward side pressure rail 100 extends to above the step roller 200. Specifically, one end of the forward pressure rail 100 is welded and fixed to the side support plate 10, and the mounting strength can be secured. The other end is bent into a U shape with a transverse opening and extends to the upper part of the step roller 200, so that the freedom degree of the step roller 200 in the up-and-down direction can be limited, and the step roller 200 is prevented from jumping to influence the running stability of the steps.

Specifically, the additional guide rail 90 is installed above the advance side pressure rail 100 by a bolt assembly, and the lower end of the additional guide rail 90 extends downward to one side of the step roller 200 and is formed with a large-angle burring, and the inner side of the burring is kept at a distance of not more than 2mm from the inner side surface of the step roller 200. This may better guide the step roller 200 from the return track 80 into the additional guide track 90 smoothly.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A track arrangement, the track arrangement comprising:

side supporting plates;

2. The track device of claim 1, wherein the driving side guide mechanism and the driven side guide mechanism each comprise a forward side guide rail, a top surface of the forward side guide rail is convexly provided with a limiting protrusion, and the limiting protrusion is arranged outside the step roller.

3. The guide rail device according to claim 2, wherein the driving side guide rail mechanism and the driven side guide rail mechanism each further comprise a guide wheel provided on the side support plate, the guide wheel being adapted to be disposed at a comb tooth inlet/outlet position of the main frame body.

4. The track arrangement of claim 3, wherein the driving side track mechanism and the driven side track mechanism each further comprise a support track disposed on the side support plates for placement at a comb entrance of the main frame body and below the wheel axle of the step roller.

5. The track arrangement of claim 4, wherein the drive side guide further comprises a transition guide disposed on the side support plates, the transition guide engaged between the forward side guide and the step sprocket.

6. The track device of claim 5, wherein the active side track mechanism further comprises a height adjustment mechanism disposed on the side support plate and connected to the transition track, the height adjustment mechanism being configured to drive the transition track to ascend or descend.

7. The track assembly of claim 6 wherein the height adjustment mechanism includes a support block disposed on the side support plate, a threaded rod rotatably disposed on the support block, and a nut threadably engaged with the threaded rod, the nut being coupled to the transition track and threadably engaged with the threaded rod.

8. The track arrangement of claim 5, wherein the driven side track mechanism further comprises a swivel track disposed on the side support plate, the swivel track having a straight segment, the drive side track mechanism and the driven side track mechanism further each comprising an additional track disposed on the side support plate, the additional track opposing the transition track and the additional track further opposing the straight segment, a projection of the advance side track seamlessly interfacing with a projection of the additional track in a direction perpendicular to a wheel axis of the step sprocket.

9. The track arrangement of claim 2, wherein the driven side guide mechanism further comprises a forward side pressure rail, one end of the forward side pressure rail being disposed on the side support plate, the other end of the forward side pressure rail extending above the step roller.

10. A travelator comprising a guide rail arrangement according to any one of claims 1-9.