JPH02221092A - Mobile road device - Google Patents

Abstract

PURPOSE:To prevent guide wheels from being affected by the heat generated to reaction plates so as to dissolve the thermal deformation of the guide wheels by providing the reaction plates with heat insulating members in the region brought into contact with the guide wheels. CONSTITUTION:During operation, reaction plates 23a, 23b moves being supported by guide wheels 29 through heat insulating members 27. In this case, as the heat generated to the reaction plates 23a, 23b is shut off by the heat insulating members 27, the guide wheels 29 are prevented from being affected by that heat.

Description

[Detailed Description of the Invention] EObject of the Invention [Field of Industrial Application] This invention relates to a moving road device that transports passengers using a linear motor as a power source.

(Prior art) Conventionally, as a power source for moving road devices such as escalators,
For example, devices employing linear motors are already known.

The main point of JR's linear motor for moving road equipment is that a reaction plate, which is the secondary side of the linear motor, is provided on the bottom side of each step board connected in an endless manner, and a linear motor that faces the reaction plate is provided on the frame side. A primary stator is provided.

In the area where the primary stator is installed, a guide is placed to support and move both ends of the reaction plate, and the structure is such that an optimal gap is always maintained between the secondary stator and the reaction plate. .

(Problems to be Solved by the Invention) As described above, the reaction plate faces the secondary stator, and the moving magnetic field generated by the multiphase alternating current flowing through the secondary stator generates an eddy current on the reaction plate side. be guided. The interaction between this eddy current and the moving magnetic field generates thrust in the reaction plate. In this case, since the speed of the moving road is very slow, the loss on the reaction plate side becomes heat, and the guide wheels that support the reaction plate are strongly affected by the heat.

In particular, since the guide wheels are made of rubber-based material to suppress vibration and noise, there is a risk of thermal deformation, which may make it difficult to support and move the reaction plate smoothly.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a moving road device whose guide wheels are not affected by heat and can maintain stable operating conditions for a long period of time.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides guide wheel areas arranged on the left and right sides on the bottom side of each step board connected in an endless manner. When both ends are supported during passage, a near-action plate is provided, which serves as the secondary side of the linear motor. In a moving road device in which a primary stator is fixed to a support frame side and each of the treads is moved by thrust from a linear motor,
A heat insulating member with low thermal conductivity is provided at both ends of each reaction plate that comes into contact with the guide wheel.

(Function) According to such a moving road device, during driving, the reaction plate is supported by the guide wheel via the heat insulating member and moves. In this case, the heat generated in the reaction plate is blocked by the heat insulating member, so that the guide wheel is not affected by the heat.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings of FIGS. 1 to 3.

In Fig. 3, 1 is a moving passage VA location 3 such as an escalator, etc.
The supporting frame is shown, and the choreography will be installed in the building.

First and second guide rails 7.9 for guiding the movable body 5 are fixedly supported on the support frame 1 in an endless manner.

The moving body 5 has a structure in which a large number of tread plates 11 having an angular cross section are connected in an endless manner, and each tread plate 1
A front wheel shaft 13 and a rear wheel shaft 15 are provided on the bottom side of the vehicle. The fourth end of the front wheel axle 13 is attached to one of the wheels 19 provided at predetermined intervals on the step chain 17.

Rear wheels 21 are attached to both ends of the rear wheel shaft 15, and the rear wheels 21 can run along the second guide rail 9. Further, a step chain 17 having wheels 19 is wound along the first guide rail 7, so that the wheels 19 can run along the first guide rail 7.

Further, on the bottom side of each footboard 11, a reaction plate 23, which serves as a secondary side of the near motor, is fixedly supported to the front wheel axle 13 and the rear wheel axle 15 via brackets 25.

The reaction plate 23 consists of a magnetic plate 23a made of iron or the like and a non-magnetic plate 23b made of aluminum or equivalent, and on both sides there are heat insulating parts +427.27 formed of a material with low thermal conductivity that are integrally overlapped and combined. has been done.

The positions where the heat insulating members 27 and 27 are provided lie in the entire area passing over the guide wheel 29, which will be described later.

The guide wheels 29 are made of a rubber-based material, and as shown in FIG. It is supported when installed.

On the other hand, in a region where the guide wheel 29 is provided, a primary stator 33 of the near motor is disposed facing the reaction plate 23 and is fixedly supported by the support frame 1 .

- The next stator 33 consists of an iron core 33a and a primary winding 33b assembled in a groove of the iron core 33a, - the next winding 33b
When a multiphase alternating current flows through, a shifted fi7Ila field is generated. As a result, the shifted f71 magnetic field induces an eddy current on the reaction brake upper side 23, as is well known from Lenz's law.

In addition, in Fig. 2, 35 indicates the handrail at the beginning of the transition.
A pulley (
(not shown) via a transmission belt extending from the motor.

According to the moving road device configured in this manner, when a multiphase alternating current flows through the primary winding 33b of the negative side stator 33, a moving magnetic field is generated. This moving era field induces an eddy current on the side of the reaction plate 23, and the interaction between this eddy current and the moving magnetic field produces a thrust in the direction of arrow A in Figure 3, and the reaction plate 23 in the outgoing region is guided. It moves supported by a ring 29. During this movement, the guide wheel 29 comes into contact with the heat insulating member 27 of the reaction plate 23, so that it is no longer directly affected by the heat generated in the reaction plate 23.

In this case, it is also possible to directly fix the heat insulating member 27 to both sides of the reaction plate 33 as shown in FIG. 6 by fixing means such as bolts 37, instead of overlapping the heat insulating member 27. be. Further, as shown in FIG. 4, a cooling fin portion 39 that extends vertically inside the heat insulating member 27 and on the side of the reactor plate 23 may be provided, or a cold Mj air path 41 may be provided as shown in FIG. This makes it possible to more reliably reduce the influence of heat on the guide wheel 29.

[Effects of the Invention] As explained above, according to the moving road device of the present invention, since the heat insulating member is provided in the area of the reaction plate that comes into contact with the guide wheel, the influence of heat by the reaction plate is eliminated, and the guide Eliminates thermal deformation of the ring.

Therefore, the distance between the downstream stator and the reaction plate can be maintained correctly, and a stable operating state can be obtained over a long period of time.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the main parts of this invention, Fig. 2 is a schematic side view of the metal body of the moving road equipment d, Fig. 3 is a partially cutaway perspective view of the tread with the reaction plate attached, and Fig. 4 Figure, 5th
This figure is a perspective view of a reaction plate showing a preferable example for minimizing the influence of heat, and FIG. 6 is a perspective view similar to FIG. 4 showing a modified example of the heat insulating member. 1...Support frame 11...Tread plate 23...Reaction plate 27...Two insulation members...Guide wheel 33...-Next side stator

Claims (1)

[Claims] A near-action plate is provided on the bottom side of each of the endlessly connected treads, the both ends of which are supported when passing through the areas of the guide wheels arranged on the left and right, and which serve as the secondary side of the linear motor, In a moving road device in which a primary stator of a linear motor facing the reaction plate is fixed to a support frame side in a region where the treads are moved, and each treadle is moved by the thrust of the linear motor, the step plate comes into contact with the guide wheel. A moving passage device characterized in that a heat insulating member with low thermal conductivity is provided at both ends of each reaction plate that meets each other.