JPH0517762B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power supply structure for a moving body used for supplying electric power to the moving body, transmitting travel control information to the moving body, and the like.

[Conventional technology]

The current-carrying structure of such a moving body generally includes a current-carrying rail that is installed on the ground side along the moving direction of the moving body, and a pair of current-carrying rails that are provided on the moving body and are spaced apart from each other in the longitudinal direction of the moving body. The current-carrying rail consists of a rail body made of a conductive material such as copper, and a rail body that protrudes from both sides of the rail body toward the collector side, and is made of a non-conductive resin or the like. A pair of protective wall portions constituted by

By the way, the purpose of providing a pair of current collectors is to ensure appropriate energization by taking advantage of the fact that a pair of current collectors is unlikely to be in a poor contact state at the same time.
Furthermore, the main purpose of providing the pair of protective walls is to avoid the trouble of fingers coming into contact with the rail body.

By the way, in order to attach a pair of current collectors to a moving body, conventionally, as shown in FIG. The rear end portion and the front end portion of the rear side current collector support frame 51B are respectively attached to the movable body so as to be rotatable around axes Xa and Xb along the protruding direction of the protective wall, and the front side current collector support frame 51B is A pair of current collectors 50, 50 are provided at the front end of the support frame 51A and the rear end of the current collector support frame 51B on the rear side.
was installed. Incidentally, the front and rear current collector support frames 51A, 51B are pivotably supported around axes Ya, Yb along the rail width direction, and are urged toward the current-carrying rail by a spring. However, in the figure, 52 is a current-carrying rail, which consists of a rail body 53 and a holder 54.
Further, the holder 54 is provided with a pair of protective wall portions 54A.

[Problem that the invention seeks to solve]

According to the conventional structure described above, as the moving object moves, the current collector on the side in the direction in which the moving object moves may be strongly pressed against the protective wall, and as a result, the current collector and the protective wall are damaged early. Not only is there a risk of the current collector coming into contact with the protective wall, but also
There is also the disadvantage that abrasion powder of the protective wall is generated and the abrasion powder adheres to the surface of the rail body, which tends to cause a failure in conduction.

Incidentally, there is no possibility that the current collector on the opposite side to the direction in which the moving body moves will come into strong pressure contact with the protective wall. In other words, the reason why the current collector is strongly pressed against the protective wall is that the current collector is attached to the front end of the current collector support frame that protrudes in the moving direction of the moving body and swings around the rear end as a fulcrum. This is due to the fact that when a current collector is attached to a current collector support frame that protrudes in the opposite direction to the moving direction of the moving body and swings around the front end, the current collector may be attached to a protective wall. It will not be pressed too hard. Therefore, if the moving object moves only in one direction, neither of the pair of current collectors can be provided so as not to come into strong pressure contact with the protective wall, but generally the moving object moves in either the front or the rear direction. The current collector is also used to advance in the direction of , and it is unavoidable that the current collector is strongly pressed against the protective wall.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to prevent a pair of current collectors from being strongly pressed against a protective wall when a moving object moves forward or backward. It is in the point of doing.

[Means for solving problems]

The characteristic configuration of the current-carrying structure of a moving body according to the present invention is as follows:
A current collector support frame for supporting the pair of current collectors is provided, and the current collector support frame has a pivot portion that is pivoted to the movable body around an axis along the protruding direction of the protective wall portion. and a pair of current collector mounting portions that hold the pair of current collectors; and a state in which the pair of current collector mounting portions are distributed and positioned in the longitudinal direction of the movable body with respect to the axis of the pivot portion. and a connecting portion connecting the pivot portion and the pair of current collector mounting portions in a state where the pair of current collector mounting portions are integrally rotated around the axis, Its action and effects are as follows.

[Effect]

In other words, the pair of current collectors swings like a seesaw, so that when the current collector on the side in the direction of movement of the moving body comes into contact with the protective wall, the current collector on the side opposite to the direction of movement of the moving body comes into contact with the protection wall. The electrons also come into contact with the protective wall, and as a result, the contact pressure between the current collector and the protective wall is reduced compared to when only the current collector on the side in the direction of movement of the moving body contacts the protective wall.

〔Effect of the invention〕

Therefore, since the contact pressure between the current collector and the protective wall is reduced, early damage to the current collector and the protective wall can be suppressed, and generation of abrasion powder on the protective wall can be suppressed, making it possible to prevent energization. The occurrence of defects can be avoided as much as possible, and a current-carrying structure for a moving body with great practical advantages has been obtained.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in FIGS. 4 and 5, a transport vehicle body V as a moving body having a pair of front and rear running wheels 1A, 1B is provided, and a guide rail A for movably supporting the vehicle body V is provided. A conveyance facility is configured in which the vehicle body A is driven by a linear motor to convey articles.

The linear motor includes a primary coil C installed on the vehicle body A, and a secondary conductor P installed on the guide rail A.

As shown in FIG. 3, the guide rail A is
The vertical cross-sectional shape is formed into a substantially U-shape, and grooves 2A,
2B is formed, and an energizing rail unit U is attached to the inner surface of the lateral side wall. The pair of traveling wheels 1A, 1B are engaged in the lower groove 2A of the upper and lower grooves 2A, 2B, and each traveling wheel is inserted into the lower groove 2A. Eight anti-sway rollers 3 are provided, one pair each on the left and right in front and rear of each of the wheels 1A, 1B.
Furthermore, four anti-sway rollers 4 are provided in the upper groove 2B, one pair each on the left and right sides of the vehicle body V, respectively.

The secondary conductor P is assembled to the lower wall of the guide rail A while also serving as the guide rail A itself. That is, the guide rail A is formed of a non-magnetic material such as aluminum, and the lower surface portion _P1 of the guide rail A acts as the non-magnetic material for forming the secondary conductor. Then, a pair of left and right cavities 5 along the rail longitudinal direction are formed in the lower wall of the guide rail A, and a magnetic material P ₂ such as iron for forming a secondary conductor is inserted into the cavities 5.
A wedge 6 for fixing the magnetic material P ₂ is inserted from the lateral side of the guide rail A.

The current-carrying rail unit U has three power supply lines used for supplying three-phase AC power from an external power source E to drive the primary coil C on the vehicle body side and various devices installed on the vehicle body V. rail r ₁ and
It is equipped with five energized rails L consisting of two signal rails _R2 for transmitting and receiving control signals between the central control device B on the ground side and the control device H on the vehicle body side. A rail support frame 7 that supports the rails L in parallel is fastened with screws to a pair of upper and lower locking portions 8 provided on the guide rail A, and the movement of the vehicle body V is thereby prevented. A current-carrying rail L is configured to be installed on the ground side along the direction.

As shown in FIG. 6, each of the current-carrying rails L has a rail main body 9 made of a conductive material such as copper.
and a holder 10 made of a non-conductive material such as synthetic resin, and the holder 10 has a pair of protective walls protruding from both lateral sides of the rail body 9 toward the current collector side, which will be described later. 10A, 10A are provided.

The conveyance vehicle body V has a pair of front and rear main frames 11, 11 each having a substantially U-shaped shape when viewed in the front and rear directions.
and a connecting frame 12 that connects the main frames 11, and the main parts are front and rear members, each of which is a pipe-like member bent into a substantially U-shape when viewed from the front and back. A carrier 13 is provided at the bottom of the vehicle body.

The primary coil C is provided on the upper part of the connection frame 12, and the primary coil C
In order to avoid contact between the guide rail A and the guide rail A, a pair of front and rear wheels 1 for space regulation that can freely contact the guide rail A are provided.
4 is provided.

Further, the running wheels 1A, 1B and steady rest rollers 3, 4 are attached to the main frame 11, and the current collector unit D is attached to a bracket 15 connected to the main frame 11.

However, in the figure, reference numeral 16 denotes an electromagnetic traveling brake, which is attached to the rear traveling wheel 1B. Further, 17 is a rotary encoder for detecting the traveling speed and traveling distance of the vehicle body V, and is attached to the front traveling wheel 1A.

Therefore, the central control device B and the vehicle body side control device H
and controlling the energization to the primary coil C and the electromagnetic brake 16 while detecting the position and running speed of the vehicle body V based on the detection information from the rotary encoder 17,
It is configured to start, accelerate, decelerate, and stop the vehicle body V.

As shown in FIGS. 1 and 2, the current collector unit D includes a pair of current collectors 18, 18 for each current-carrying rail L. electronic 18,18
are provided on the vehicle body V so as to be spaced apart from each other in the longitudinal direction of the vehicle body V.

The support structure for the current collector 18 will be described below.

That is, one current collector support frame 19 is provided to support the pair of current collectors 18, 18, and its central portion in the longitudinal direction of the vehicle body rotates around the axis X along the protruding direction of the protective wall 10A. It is freely attached to the vehicle body V. This collector support frame 19 includes a base frame 19A as a pivot part that is pivoted to the vehicle body V around the axis X, and a pair of collector mounting parts that hold the pair of collectors 18, 18. Current collector holder 24, 24
And, with the pair of current collector holders 24, 24 being positioned separately in the longitudinal direction of the vehicle body V with respect to the axis X of the base frame 19A, and the pair of current collector holders 24, 24 being aligned with the axis X of the base frame 19A, It is composed of a companion frame 22 and links 25, 25 as connecting parts that connect the base frame 19A and the pair of current collector holders 24, 24 in a state of integral rotation around X.

More specifically, the base frame 19A is attached to the bracket 15 on the vehicle body V side by a pivot pin 20 so as to be rotatable around the axis X. The base frame 19A is provided with a pair of front and rear sliding shafts 21 that slidably pass through the current-carrying rail L in the width direction. A companion frame 22 is attached to this sliding shaft 21, and the sliding shaft 21 is urged back to the center position in the sliding direction by a spring 23 that is wound around the sliding shaft 21. There is. Link pivot portions 22A are provided in five upper and lower stages at both front and rear ends of the companion frame 22, and the link pivot portions 22A include a link pivot pin 29 that passes through the five stages of link pivot portions 22A. , a helical spring 26 acting on the link 25, and a pair of links 25 that connect the current collector holder 24 to the companion frame 22 in a state where the current collector holder 24 can be moved in parallel in the protruding direction of the protective wall 10A. 24 is provided in such a state that it is biased back toward the current-carrying rail L side.

The intermediate frame 22 is fitted onto the pair of sliding shafts 21, and the upper and lower ends of each sliding shaft 21 are provided with
A pin 27 for positioning the intermediate frame 22 is penetrated,
The intermediate frame 22 is received and held by a pin 27 via a washer 28.

Therefore, the pair of current collectors 18, 18 for each current-carrying rail L swings like a seesaw along the rail width direction, and both of the current collectors 18, 18 come into contact with the protective wall 10A. Protective wall 1
The contact pressure for 0A is reduced. Further, when the vehicle body V moves up and down with respect to the guide rail A due to vibration etc., the intermediate frame 22 of the collector support frame 19 moves in the width direction of the current carrying rail L, that is, in the up and down direction. Even if the current collector 1
8 and 18 are prevented from being strongly pressed against the protective wall 10A.

In addition, at the intermediate point in the front and back direction of the collectors 18, 18,
A cut groove K is provided for the purpose of providing a cleaning function.

[Another example]

The present invention is extremely effective when the moving body V is driven at high speed by a linear motor as in the above-mentioned embodiment, but when the traveling wheels of the moving body V are driven by an electric motor. can also be applied.

In carrying out the present invention, the specific structure of the current collector support frame 19 can be changed in various ways, and in short, it may be provided so as to be rotatable around the axis X along the protruding direction of the protective wall 10A.

Furthermore, in the above-mentioned embodiment, the case where the entirety of the five stages of current collectors 18 for the five current-carrying rails L is swung together is illustrated, but the case is illustrated in which the entirety of the five-stage current collectors 18 for each of the current-carrying rails L is supported separately. Electronic support frame 1
9 may be provided, and the current collector support frames 19 may be provided so as to be rotatable individually.

[Brief explanation of the drawing]

The drawings show an embodiment of the current-carrying structure for a moving body according to the present invention, in which Fig. 1 is a partially cutaway plan view of the current collector support structure, Fig. 2 is a side view of the same structure, and Fig. 3 is a view of the current-carrying rail. FIG. 4 is a schematic side view of the conveyance equipment, FIG. 5 is a schematic front view of the same equipment, and FIG. 6 is a longitudinal front view of the current-carrying rail. FIG. 7 is a schematic diagram of a conventional current collector support structure. 9... Rail body, 10A, 10A... Protective wall, 18... Current collector, 19... Current collector support frame, 1
9A...Pivot part, 22...Connection part, 24...
Collector mounting part, 25... Connection part, L... Current-carrying rail, V... Moving body, X... Axis core.

Claims (1)

[Scope of Claims] 1. A current-carrying rail L installed on the ground side along the moving direction of the moving body V; The current-carrying rail L includes a rail main body 9 and a pair of protective walls 1 protruding from both lateral sides of the rail body 9 toward the collector side.
0A, 10A, a current collector support frame 19 for supporting the pair of current collectors 18, 18 is provided, and the current collector support frame 19 is , a pivot portion 19 pivoted to the movable body V around an axis X along the protruding direction of the protective wall portion 10A;
A, a pair of current collector mounting portions 24, 24 that hold the pair of current collectors 18, 18, and a pair of current collector mounting portions 24, 24 that are aligned with respect to the axis X of the pivot portion 19A. The pivot portion 19A and the pair of current collector mounting portions 24, 24 are rotated integrally around the axis collector mounting part 24,
24. A current-carrying structure for a movable body consisting of connection parts 22, 25, and 25 that connect 24 to 24. 2. The current supply structure for a moving body according to claim 1, wherein the current collector support frame 19 supports the current collector 18 so as to be movable in the width direction of the current supply rail L.