JP2003087903A - Collecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a collecting device that is easily detached or attached to a pantograph of a collecting part and that can reduce the burden of detaching or attaching work. SOLUTION: In this collecting device which has a collecting part 1 that collects power by contacting a conductor onto a trolley wire, and that is mounted on the upper part of the pantograph P, the mounting part 2 of the collecting part 1 has a bearing part 31 that is fitted to the upper shaft P1 of the pantograph and supported at the upper end side. Also, a groove 3 that opens the lower end side to enable the upper shaft P1 to be passed through and a groove opening and closing means 4 that opens and closes the lower end side of the groove 3 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a current collector for supplying electric power from a trolley wire to a traveling carriage such as a crane, and more particularly, to facilitate attachment / detachment of a current collector to / from a pantograph and reduce attachment / detachment work. The present invention relates to a current collector.

[0002]

2. Description of the Related Art Conventionally, a traveling trolley such as a crane is supplied with electric power from a trolley wire stretched on the ground side. A current collector used in this case is a trolley wire such as a conductor such as a sliding plate or a wheel. A current collecting unit is provided for collecting current by contacting with.
The current collector is swingably attached to the upper shaft of the pantograph and is pressed while being biased by the trolley wire.

Conventionally, the current collecting portion is attached to the pantograph by forming a through hole in an attaching portion such as a wheel stand and inserting the upper shaft of the pantograph into the through hole. The upper shaft of the pantograph has diametrically piercing pins at both ends, which can be removed by pulling out the pins.

[0004]

By the way, the conductors such as the sliding plate and the wheel of the current collector are worn out electrically or mechanically due to the sliding contact with the trolley wire, and therefore need to be replaced regularly. However, in the above-mentioned conventional current collector, the upper shaft of the pantograph is removed from the through hole of the mounting portion to remove the current collector from the pantograph, however, the upper shaft forming a part of the link of the pantograph. It is very difficult to pull out and insert at the time of mounting, and there is a problem that it is dangerous because it is a work at a high place on the crane.

In view of the problems of the above-described conventional current collector, the present invention aims to provide a current collector which facilitates attachment / detachment of a current collector to / from a pantograph and reduces attachment / detachment work. And

[0006]

In order to achieve the above object, the current collector of the first aspect of the present invention has a current collector that collects current by bringing a conductor into contact with the trolley wire. In the current collector attached to the upper part of the pantograph, the mounting part of the current collector has a bearing part supported at the upper end side by being fitted to the upper shaft of the pantograph, and the lower end side is opened so that the upper shaft is It is characterized in that a groove portion that allows insertion and a groove portion opening / closing means that opens and closes the lower end side of the groove portion are provided.

This current collector has a bearing portion at the upper end side which is fitted and supported by the upper shaft of the pantograph at the mounting portion of the current collector, and the lower end side is open so that the upper shaft can be inserted. Since the groove portion for opening and closing and the groove portion opening and closing means for opening and closing the lower end side of the groove portion are provided, it is possible to open the groove portion opening and closing means and remove the upper shaft from the lower end side of the groove portion. Without removing from the pantograph
The current collector can be removed.

In this case, the groove opening / closing means is
The sliding piece may include a long groove and a fastener that penetrates the long groove of the sliding piece and is fastened to the mounting portion.

With this, the groove can be easily opened and closed by sliding or rotating the sliding piece and tightening and loosening the fastener.

In order to achieve the same object, the current collecting device of the second invention has a current collecting part for collecting current by bringing a conductor into contact with the trolley wire, and the current collecting part is provided above the pantograph. In a current collector to be attached, a bearing portion whose upper end side is fitted and supported by an upper shaft of a pantograph, and a bearing portion which is connected to the upper portion of the pantograph and which is communicated with the upper shaft so that the upper shaft can be vertically inserted. And a horizontal groove portion that communicates with the vertical groove portion and is opened to a side of the mounting portion so that the upper shaft can be inserted in the horizontal direction.

In this current collecting device, a bearing portion, the upper end side of which is fitted and supported by an upper shaft of a pantograph, is attached to a mounting portion of the current collecting portion, and the upper shaft is inserted in the longitudinal direction by communicating with the bearing portion. Since the vertical groove portion that enables the vertical groove portion and the horizontal groove portion that communicates with the vertical groove portion and opens on the side of the mounting portion and that allows the upper shaft to be inserted in the lateral direction are provided, the opening is performed while lifting the mounting portion. The upper shaft can be pulled out from the opening of the lateral groove portion by rotating it to the side and pulling it upward, whereby the current collector can be attached and detached without pulling the upper shaft out of the pantograph. Further, in this current collector, since the attachment / detachment of the current collector to the pantograph is performed by a simple operation of rotating the attachment part while lifting it, the attachment / detachment work at a high place can be made extremely easy and in a short time. It is possible to reduce the work of attaching and detaching the current collector, which needs to be performed regularly, and improve its safety.

In this case, the pair of upper shafts are arranged substantially parallel to each other, and the pair of current collecting portions are arranged on the respective upper shafts so that the openings of the lateral groove portions face outward. You can

As a result, even if the mounting portion is lifted up and the upper shaft is attempted to move so as to escape to the opening side, the current collecting portions interfere with each other to prevent lateral movement, so that the mounting portion is careless. It can be prevented from coming off the upper shaft.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a current collector of the present invention will be described below with reference to the drawings.

1 to 5 show a first embodiment of the current collector of the present invention. This current collector has a current collector 1 for collecting current by bringing a conductor into contact with the trolley wire T.
Is attached to the upper part of the pantograph P for use. Then, in this embodiment, in such a current collector, the current collector 1
Of the upper shaft P1 of the pantograph P is swingably fitted to and supported by the upper shaft P1 of the pantograph P.
A groove portion 3 that allows insertion of the groove portion and a groove portion opening / closing means 4 that opens and closes the lower end side of the groove portion 3 are provided. The mounting portion 2 is composed of a pair of plate pieces 21 connected to the lower portion of the conductor mounting base 5 in the axial direction of the upper shaft P1, and the groove portions 3 are formed at the same positions of the respective plate pieces 21. . The mounting portion 2 is positioned at the axial center of the upper shaft P1 by a pair of collars C.

On the other hand, the groove opening / closing means 4 is composed of a sliding piece 42 having a long groove 41 and a bolt 43 penetrating the long groove 41 of the sliding piece 42 and fastened to the mounting portion 2. The bolt 43 is one plate piece 21 that constitutes the mounting portion 2.
Further, the side portion of the groove portion 3 is directly screwed from the inside of the plate piece 21. Then, when the bolt 43 is fastened to the other side of the groove 3 of the mounting portion 2 in a closed state, the sliding piece 42 is supported from below to prevent the sliding piece 42 from descending. A support piece 44 is attached.

In the first embodiment, the sliding plate 6 is used as the conductor. As shown in FIG. 3, the slide plate 6 includes two slide plate pieces 6 made of, for example, a copper-based sintered alloy or the like.
The antifriction material 62 made of carbon or the like is arranged between the
1 is fixed to the conductor mounting base 5 with bolts 63.

An example of a pantograph P to which the conductor mount 5 is attached will be described with reference to FIG. In this pantograph P, a pedestal 12 is attached to insulators 11 and 11 fixed to a traveling carriage (not shown) such as a crane.
Lower arms 14, 14 via support shafts 13, 13 at both ends of
And the upper arms 15 and 15 are attached to the upper portions of the lower arms 14 and 14 via pivots 16 and 16, respectively. To the upper ends of the two upper arms 15 and 15, the mounting portion 2 protruding from the lower portion of the conductor mounting base 5 is mounted via the upper shaft P1, and the conductor mounting base 5 moves up and down on the vertical line. The links 17, 17 are installed between the lower arms 14, 14 via pivots 17a, 17b. Further, by tensioning the spring 18 between the shafts 18s supported by the lower arm 14 and the upper arm 15, a predetermined contact pressure is applied to the trolley wire T so that current collection can be reliably performed. There is.

Next, the operation of the current collector of the above embodiment will be described. In the pantograph P, a predetermined contact pressure is applied to the trolley wire T, and the slide plate 6 is stably slidably contacted with the trolley wire T by urging the conductor mounting base 5 to be horizontal. As a result, power is supplied from the trolley wire T to the traveling carriage via the current collector 1. In this case, the sliding plate 6 reduces wear of the sliding plate piece 61 by disposing the antifriction material 62 between the sliding plate pieces 61, but in long-term use, sliding contact with the trolley wire T occurs. Causes electrical or mechanical wear.

When the sliding plate 6 is worn to an allowable limit, the current collector 1 needs to be removed and replaced. In this embodiment,
The mounting portion 2 of the current collector 1 is provided with a groove portion 3 for forming the bearing portion 31 of the upper shaft P1 and having a lower end side opened so that the upper shaft P1 can be inserted, and a groove portion opening / closing means 4 for opening / closing the groove portion 3. Since it is provided, as shown in FIGS. 4 to 5, it is possible to open the groove portion opening / closing means 4 and pull out the upper shaft P1 from the lower end side of the groove portion 3, whereby the upper shaft P1 is removed from the pantograph P. The current collecting unit 1 can be attached and detached without removing it from the unit. As a result, the current collector 1 can be easily attached to and detached from the pantograph P, and the attachment / detachment work at a high place can be shortened.
It is possible to reduce the work of attachment and detachment and improve its safety. Further, the groove opening / closing means 4 is constituted by the sliding piece 42 having the long groove 41 and the bolt 43 penetrating the long groove 41 of the sliding piece 42 and fastened to the mounting portion 2, whereby the sliding piece 42 is provided. The groove portion 3 can be easily opened and closed by sliding or rotating and the bolt 43 is tightened and loosened.

6 to 7 show a second embodiment of the current collector of the present invention. The current collector of the present embodiment is an example in which the conductor of the current collecting portion of the first embodiment is changed to the wheel 7, and the wheel base 71 supporting the two wheels 7 is used as an attachment portion to the wheel base 71. The groove portion 3 and the groove portion opening / closing means 4 for opening / closing the groove portion 3 are provided. Similar to the first embodiment, the groove portion 3 has a bearing portion 31 whose upper end side is swingably fitted to and supported by the upper shaft P1 of the pantograph P, and whose lower end is opened to the lower portion of the wheel base 71. The upper shaft P1 is configured to be insertable. The wheel base 71 includes a pair of plate pieces 7 connected to both sides of the wheel 7.
2 and the groove 3 is formed in each plate piece 72.

On the other hand, the groove opening / closing means 4 comprises a sliding piece 42 having a long groove 41, and a bolt 43 penetrating the long groove 41 of the sliding piece 42 and fastened to the wheel base 71. The bolt 43 is directly screwed into one plate piece 72 constituting the wheel base 71 from the inside of the plate piece 72 at the side of the groove 3. When the bolt 43 is fastened in the closed state to the other side of the groove 3 of the wheel base 71,
By supporting the sliding piece 42 from below, the sliding piece 42 is supported.
A support piece 44 is attached to prevent the downward movement. In addition,
The other basic configuration of the current collector of the present embodiment is the same as that of the first embodiment, and the operation thereof is also the same, and thus detailed description thereof will be omitted.

8 to 10 show a third embodiment of the current collector of the present invention.
An example is shown. The current collector of this embodiment is an example in which the number of wheels 7 of the current collector 1 of the second embodiment is increased to four, and two wheel bases 71 are provided on the two upper arms 15 of the pantograph P, respectively. It is swingably attached to the two upper shafts P1 provided. And this wheel stand 71
As a mounting portion, the groove portion 3 is provided on each wheel base 71,
A groove opening / closing means 4 for opening / closing the groove 3 is provided. Similar to the first and second embodiments, the groove portion 3 has a bearing portion 31 whose upper end is fitted and supported by each upper shaft P1 of the pantograph P, and whose lower end is the wheel base 7.
The upper shaft P1 is opened so that the upper shaft P1 can be inserted therethrough. The wheel base 71 is composed of a pair of plate pieces 72 connected to both sides of the wheel 7, and the groove 3 is formed in each plate piece 72.

On the other hand, the groove portion opening / closing means 4 is composed of a sliding piece 42 having a long groove 41, and a bolt 43 penetrating the long groove 41 of the sliding piece 42 and fastened to the wheel base 71. The bolt 43 is directly screwed into one plate piece 72 constituting the wheel base 71 from the inside of the plate piece 72 at the side of the groove 3. When the bolt 43 is fastened in the closed state to the other side of the groove 3 of the wheel base 71,
By supporting the sliding piece 42 from below, the sliding piece 42 is supported.
A support piece 44 is attached to prevent the downward movement. In addition,
The other basic configuration of the current collector of the present embodiment is the same as that of the first and second embodiments, and the operation thereof is also the same, so detailed description will be omitted.

Further, FIGS. 11 to 12 show a fourth embodiment of the current collector of the present invention. The current collector of the present embodiment has the same configuration as that of the current collector of the third embodiment except for the current collector 1, and the wheel bases 71 of the pair of current collectors 1 are respectively connected to the pantograph P 2. It is swingably attached to two upper shafts P1 provided on the upper arm 15 of the book. And
The wheel base 71 is used as a mounting portion for each wheel base 71.
A bearing portion 81 whose upper end is fitted and supported by the upper shaft P1 of the pantograph P, a vertical groove portion 82 communicating with the bearing portion 81 and allowing the upper shaft P1 to be vertically inserted, The lateral groove portion 8 that communicates with the groove portion 82 and opens to the side of the wheel base 71 so that the upper shaft P1 can be inserted in the lateral direction.
3 and 3 are provided.

Further, the pair of current collecting portions 1 are provided with the openings 8 of the lateral groove portions 83 with respect to the pair of upper shafts P1 arranged substantially in parallel.
4 are arranged so as to face outward. The current collector 1 normally holds the posture as shown in FIG. 11A because the upper part of the wheel 7 comes into contact with a trolley wire (not shown), but for some reason, the wheel base 71 is lifted. Even when trying to move the upper shaft P1 so as to escape to the opening 84 side, by disposing the pair of current collectors 1 as described above, the current collectors 1 interfere with each other to prevent lateral movement. Therefore, it is possible to prevent the wheel base 71 from being accidentally disengaged from the upper shaft P1.

Thus, in the current collector of the fourth embodiment, the wheel base 71 of the current collector 1 has a bearing 81 whose upper end is fitted and supported by the upper shaft P1 of the pantograph P, and the bearing 81. A vertical groove portion 82 communicating with 81 to allow the upper shaft P1 to be inserted in the vertical direction, and a vertical groove portion 82 communicating with the vertical groove portion 82 and opening to a side of the wheel base 71 to insert the upper shaft P1 in the horizontal direction. Since the horizontal groove portion 83 is provided, the upper shaft P1 is moved from the bearing portion 81 to the vertical groove portion 82 and further to the horizontal groove portion 83 by rotating the wheel base 71 to the opening 84 side while pulling it up. It is possible to remove the current collector 1 from the opening 84 of the lateral groove portion 83, whereby the current collector 1 can be attached and detached without removing the upper shaft P1 from the pantograph P. Further, in this current collector, since the attachment / detachment of the current collector 1 to the pantograph P is performed by a simple operation of rotating while lifting the wheel base 71, the attachment / detachment work at a high place is extremely easy and in a short time. By doing so, it is possible to reduce the work of attaching and detaching the current collector 1 that needs to be performed regularly, and improve the safety.

Although the embodiment of the present invention has been described above, the current collector of the present invention is not limited to the description of this embodiment, and can be appropriately modified without departing from the spirit thereof. Is.

[0029]

According to the current collector of the present invention, the mounting portion of the current collector has a bearing portion on the upper end side which is fitted and supported by the upper shaft of the pantograph, and the lower end side is open. Since the groove portion for allowing the upper shaft to be inserted and the groove portion opening / closing means for opening / closing the lower end side of the groove portion are provided, it is possible to open the groove portion opening / closing means and remove the upper shaft from the lower end side of the groove portion. Therefore, the current collector can be attached and detached without removing the upper shaft from the pantograph. As a result, the current collector can be easily attached to and detached from the pantograph, and the attachment and detachment work at high places can be shortened. be able to.

Further, the groove opening / closing means is constituted by a sliding piece having a long groove and a fastener penetrating the long groove of the sliding piece and fastened to the mounting portion, thereby sliding the sliding piece. Alternatively, the groove can be easily opened and closed by rotating and tightening and loosening the fastener.

Further, according to the current collector of the second aspect of the present invention, a bearing portion, the upper end of which is fitted and supported by the upper shaft of the pantograph, is attached to the mounting portion of the current collector portion, and communicates with the bearing portion. A vertical groove portion that allows the upper shaft to be inserted in the vertical direction, and a lateral groove portion that communicates with the vertical groove portion and is opened to a side of the mounting portion and that allows the upper shaft to be inserted in the horizontal direction are provided. It is possible to pull out the upper shaft from the opening of the lateral groove by rotating the mounting part to the opening side while pulling it up while lifting the mounting part.This allows the upper shaft to be pulled out from the pantograph without collecting it. Can be removed. Further, in this current collector, since the attachment / detachment of the current collector to the pantograph is performed by a simple operation of rotating the attachment part while lifting it, the attachment / detachment work at a high place can be made extremely easy and in a short time. It is possible to reduce the work of attaching and detaching the current collector, which needs to be performed regularly, and improve its safety.

Further, by arranging the pair of upper shafts substantially parallel to each other, and by arranging the pair of current collectors on the respective upper shafts so that the openings of the lateral groove portions are respectively directed outward, Even if the mounting part is lifted and the upper shaft tries to move so as to escape to the opening side, the current collecting parts interfere with each other and prevent lateral movement, so the mounting part should not accidentally come off the upper shaft. Can be prevented.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of a current collector of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a front view showing a detaching operation of the current collector of the embodiment.

FIG. 5 shows a current collector of the embodiment, (a) is a side view,
(B) is a front view showing the removing operation.

FIG. 6 is a front view showing a second embodiment of the current collector of the present invention.

FIG. 7 is a side view of the same.

FIG. 8 is a front view showing a third embodiment of the current collector of the present invention.

FIG. 9 is a side view of the same.

FIG. 10 is a plan view of the same.

FIG. 11 shows a fourth embodiment of the current collector of the present invention,
(A) is a front view showing the vicinity of a current collector, (b) is a front view showing a detaching operation of the current collector, and (c) is a front view showing a state in which the current collector is removed.

FIG. 12 shows a current collector of the embodiment, (a) is a front view,
(B) is a plan view and (c) is a right side view.

[Explanation of symbols]

1 Current collector 2 Mounting part 21 pieces 3 groove 31 Bearing 4 Groove opening / closing means 41 long groove 42 Sliding piece 43 Fasteners (bolts) 44 Support piece 5 conductor mount 6 sliding plate 61 Sliding plate piece 62 Anti-friction material 63 volts 7 wheels 71 Wheel stand (mounting part) 72 Plate pieces 81 Bearing 82 Vertical groove 83 Lateral groove 84 opening P1 upper shaft P pantograph

Claims (4)

[Claims] 1. A current collector having a current collecting part for collecting current by bringing a conductor into contact with a trolley wire, wherein the current collecting part is mounted on an upper part of a pantograph, wherein the mounting part of the current collecting part has an upper end side. A groove portion that is fitted to and supported by the upper shaft of the pantograph and that has a lower end opening so that the upper shaft can be inserted; and groove opening and closing means that opens and closes the lower end of the groove. A current collector characterized in that 2. The groove opening / closing means comprises a sliding piece having a long groove and a fastener which penetrates the long groove of the sliding piece and is fastened to the mounting portion. The current collector described. 3. A current collector having a current collecting part for collecting current by bringing a conductor into contact with the trolley wire, wherein the current collecting part is attached to an upper part of a pantograph. A bearing portion fitted and supported by the upper shaft of the pantograph, a vertical groove portion that communicates with the bearing portion and allows the upper shaft to be vertically inserted, and a side of the mounting portion that communicates with the vertical groove portion. A current collecting device, comprising: a lateral groove portion which is opened in a side and allows the upper shaft to be laterally inserted. 4. A pair of upper shafts are arranged substantially parallel to each other, and a pair of current collectors are arranged on the respective upper shafts so that the openings of the lateral groove portions face outward. The current collector according to claim 3.