JPS5915211Y2 - Vertical installation insulated trolley bar - Google Patents

Description

[Detailed description of the invention] The present invention is useful for supplying electric power to the electric drive unit of a self-driving lifting elevator that follows the vertical movement of the elevator, which is used in ultra-high chimneys and buildings that are under construction. This invention relates to an improved vertically installed insulated trolley bar.

Elevators are used to transport workers and equipment from the ground to the upper floors of chimneys and buildings under construction.

In this type of elevator, a drive motor is mounted on the elevator body, and the elevator is moved up and down by the driving force of this drive motor. Conventionally, a cable has been used to supply power to the drive motor.

However, according to the cable power supply method, the cable is directly connected to the drive motor and installed vertically, so the cable also travels as the elevator goes up and down, and as the distance traveled by the elevator increases, the weight of the cable increases. This increases the load on the drive motor, and also causes problems such as voltage drop due to the cable length.Furthermore, the stress on the cable, especially the constant repetition of bending that occurs when going up and down in an elevator, causes problems such as a voltage drop. There was a risk of wire breakage due to fatigue.

In view of this problem, the inventors have already made several proposals for power supply systems using insulated trolley bars.

That is, a plurality of insulated trolley bars are supported vertically in parallel using the chimney and the side wall of the building between the vertical travel distance of the elevator, and a current collector is electrically connected to the drive motor in the elevator. Attach the current collectors, and move the current collectors as the elevator moves up and down with the current collectors brought into contact with the conductor exposed portions provided along the entire length of each insulated drawer bar. It supplies electricity.

As shown in FIG. 1, the insulated trolley bar is composed of a molded conductor 1 and an insulating cover 2 fitted over the molded conductor 1 with a substantially U-shaped cross section. The conductor 1 is exposed in a side opening 2a provided over the entire length of the current collector 3, and a contact portion 1a of the current collector 3 is provided.

Therefore, in the insulated trolley bar, the conductor 1 is fixed and installed with rigidity in order to cope with the contact bias of the current collector.
Therefore, it is usually made up of standard length units of about 3 meters, and when installing long lengths, multiple standard length insulated trolley bars are assembled by butting their ends one after another, and connecting metal fittings are used between each conductor. It is sufficient if they are connected to form a continuous insulated trolley bar wire.

According to the insulated trolley bar power supply system as described above, only a lightweight current collector needs to be attached to the elevator, and the total weight of the elevator can be reduced, and even when moving over long distances to ultra-tall buildings. Mobile power feeding can be achieved by simply increasing the length of the insulated trolley bar.Furthermore, since this type of insulated trolley bar is fixedly installed, the power feeding (feet) part can be set at any position, making it possible to achieve extremely high When installing cables, it is possible to reduce the voltage drop by providing power feeding sections at multiple locations, and it is also possible to safely transfer power without causing disconnection problems, which solves all the problems with cable feeding systems. It is.

However, when installing the insulated trolley bar vertically, the weight of the insulated trolley bar acts in the vertical direction, so there is a risk that the insulated trolley bar may slip off the support, making it extremely difficult to support the trolley bar.

An anchor clamp is known as a device that reliably fixes an insulated trolley bar and a support portion.

That is, the anchor clamp has a gripping device that allows a rigid rod to pass through an insulated trolley bar and supports and holds the insulated trolley bar together with the rigid rod, thereby making it possible to firmly support the insulated trolley bar so that it cannot be moved. Therefore, the use of an anchor clamp is suitable as a vertical support device and can be put to practical use.

However, with such fixed support, expansion and contraction caused by temperature changes in the longitudinal direction of the insulated trolley bar is restricted, and as a result, expansion and contraction cannot be fully absorbed, and deformation stress is applied to the insulated trolley bar to cause it to bend, or the support device There is a fear that the current collector may not be able to run in contact with the current collector, such as damaging the current collector, which may cause problems in terms of the current collection function, and this poses a problem that cannot be put into practical use.

In view of this problem, the present invention has been developed to provide a stable fixed installation by providing firm fixed support when vertically installing an insulated trolley bar equipped with a current collector contact part, and also to provide a stable installation for an insulated trolley bar equipped with a current collector contact part. An object of the present invention is to provide an excellent vertically installed insulating trolley bar that can absorb thermal expansion and contraction occurring in the bar with its own installation mode and without deforming the current collector contact portion over time.

That is, the vertically installed insulated trolley bar according to the present invention is
When multiple insulated trolley bars are installed in parallel and perpendicularly, each of the insulated trolley bars is installed at the required distance in the vertical direction, and each is connected and fixed to each of the anchor clamps arranged in horizontal rows at the same intervals. are vertically supported in parallel, and each of the connecting fixing parts is
The insulated trolley bars between the connected and fixed parts are arranged at an angle of one angle in the same direction and alternately inverted in the vertical direction, and each insulating trolley bar between each connecting and fixing part is arranged at right angles to the vertical direction and It is characterized in that it is arranged in parallel while being bent in an arch shape in the opposite direction, so that the current collector contact portion is laid in a meandering manner.

In the present invention, the number of insulated trolley bars to be installed can be determined based on the number of phases required for power supply to the drive motor, etc., and from this point of view, three-way installation is most often adopted.

However, the number of threads may be used for power feeding to various other loads, and there is no problem even if the number of threads is more than three.

This will be explained below with reference to the drawings.

FIG. 2 shows a vertically installed insulating trolley bar for one phase or one line, and FIG. 3 is a side view thereof.

In the figure, 10 indicates a side wall of a chimney or a building, etc., 20 indicates an insulated trolley bar installed vertically, 21 indicates a molded conductor, 22 indicates an insulating cover fitted over it with a U-shaped cross section, and 23 is a current collector contact portion exposed from the side opening of the insulating cover 22.

30A and 30B are anchor clamps with insulators attached to L-shaped fittings 31 and 31 installed at required distances above and below the side wall 10, 32 is a connecting fitting, and 33
indicates an insulator, and 34A and 34B indicate gripping portions of the insulated trolley bar 20.

The gripping portions 34A and 34B are partially penetrated by the insulated trolley bar 10 that penetrates through themselves, thereby receiving the vertical load W of the insulating trolley bar 10, and then tightened with an angle of 36.36 to firmly connect and fix them vertically. Responsible for vertical support.

The insulated trolley bar 20 has a plurality of units in its vertical installation direction.20. ．． 20 □ to form a long line (units) 20. , 20□ is the connection part 4 between the terminals.
0 and are electrically connected.

By configuring as described above, the insulated trolley bar 20
A vertical support installation is made along side wall 10, and in this vertical installation gripping portion 34A.

At the fixed connection part with the insulated trolley bar at 34 B, the grip part 34A is tilted counterclockwise at an angle θ with respect to a perpendicular line P passing between the grip parts, while the grip part 34 B is supported at an angle θ clockwise. While being rotated, the gripping portion 34 is inverted and tilted between the upper and lower gripping portions 34A and 34B.
The insulated trolley bar 20 is forcibly bent into a bow shape in a direction perpendicular to the perpendicular P (rightward in FIG. 3) between A and 348.

Therefore, the current collector contact portion 23 is formed in the form of this bent curve.

Since the insulated trolley bar itself has rigidity, such bending can be easily done by pre-forming with a bottom-shaped end piece.

The present invention uses the above-mentioned basic configuration to carry out vertical support installation, and in reality, installation is performed using a plurality of insulated trolley bars.

Since it is usually a three-phase power supply, three insulated trolley bars are laid in parallel in three rows, and the length of the trolley bars is also laid along the moving range of the power supply, so anchor clamps are installed at each required distance. It is used for support by grasping at multiple parts.

Figure 4 shows an example of vertical installation of three insulated trolley bars 20.20.20, with anchor clamps 30.30.30 installed in rows of three at each required distance P. be.

As is clear from the figure, the anchor clamps 30, 30, 30 in each row A, B, C are arranged in rows with the same spacing and are perpendicular to the vertical direction P1. P2. They are respectively arranged along P3.

Each of the insulated trolley bars 20, 20.20 is connected to the perpendicular line P1. P2. The anchor clamps along P3 are connected and fixed to the gripping parts 34, 34.
In the rows, they are supported with the same angle inclination of θ degrees in the same direction counterclockwise with respect to the perpendicular, and furthermore, rows B and 0
In the rows..., they are sequentially supported with an inclination of θ degrees, while each insulating trolley bar 20, 20, 20 between each row A, B, C is
8 to the right with respect to the perpendicular line, and B to C to the left in opposite directions, respectively, while being bent into an arch shape while maintaining parallel spacing.

Therefore, each current collector contacting portion of each insulated trolley bar is formed in a meandering manner in the vertical installation direction, and the current collector is caused to travel in contact with the current collector along this meandering direction, thereby performing mobile power supply.

According to the insulated trolley bar of the present invention installed vertically as described above, even when its own weight acts in the vertical installation direction, it is firmly supported by the anchor clamp and there is no fear of it slipping off. Furthermore, thermal expansion and contraction in the vertical direction of the insulated trolley bar can be absorbed by the tension of the insulated trolley bar itself, that is, the size of the bend, between the supports of each anchor clamp. Although the amount of expansion and contraction is large, since this amount of expansion and contraction can be divided and absorbed between each support,
This can be handled with a slight deformation without causing extreme deformation of the bow shape.

Furthermore, since each insulating trolley bar is uniformly and regularly bent in the right or left direction to accommodate expansion and contraction between the respective supports, it is possible to prevent problems such as buckling of the conductor and large changes in the installation interval.

Therefore, in this type of mobile power supply in which a plurality of current collectors are moved in contact with each other by their respective insulated trolley bars, stable vertical running current collection can be carried out while each current collector is always kept parallel to the others, and especially in super Even when installing at a high height, contact movement can be made without any problem.

As is clear from the above description, the present invention enables the insulated trolley bar to be vertically supported and installed in a secure and rigid manner, and also to absorb thermal expansion and contraction caused by temperature changes in the fixed installation. It was possible to sufficiently perform this, and above all, the contact running part of the current collector, which is important for this type of product, could be reliably held vertically without being changed by such thermal expansion and contraction absorption. This enabled stable vertical mobile power supply.
Its practical value is great.

[Brief explanation of the drawing]

Fig. 1 is a perspective explanatory view showing an example of an insulated trolley bar applied to the present invention, and Fig. 2 is a partially cut-out explanatory view showing an example of the vertically installed insulated trolley bar of the present invention per line. 3 is an explanatory side view of the same as the above figure, and FIG. 4 is an explanatory view schematically showing one embodiment of the vertically installed insulating trolley bar of the present invention. 20: Insulated trolley bar, 21: Conductor, 22: Insulated cover, 30. 30 A, 30 B: Anchor clamp with insulator, 34, 34 A, 34 B: Gripping part.

Claims (1)

[Scope of utility model registration request] An insulating cover with a substantially U-shaped cross section is fitted over the molded conductor, and the molded conductor is exposed at the opening of the insulating cover to provide a current collector contact part.Multiple insulated trolley bars are arranged in parallel and perpendicularly. In the case of installation, each of the insulated trolley bars is vertically supported vertically in parallel by being connected and fixed to each of the anchor clamps that are installed at the required distance in the vertical direction and arranged in horizontal rows at the same intervals, and Each of the insulating trolley bars between the connecting and fixing parts supports the same part in the same direction and with the same angle of inclination, and is alternately inverted and tilted in the vertical direction. A vertically installed insulating trolley bar, characterized in that it is bent in an arch shape at right angles to the direction and in the opposite direction, and is arranged in parallel, so that the current collector contact part is formed in a meandering manner.