JPS62277001A - Conductive structure for movable unit - Google Patents

Abstract

PURPOSE:To reduce the contacting pressure of a pair of current collectors with a protective wall by making the collectors rockable. CONSTITUTION:The longitudinal center of the body of a current collector supporting frame 19 is rotatably mounted on a vehicle body around an axial center X along the protruding direction of a protective wall 10A. The frame 19 has a base frame 19A rotatably attached by a pivotal pin 30 to the bracket 15 of a vehicle body, a pair of front and rear slide shafts 21 slidably penetrating in the lateral direction of conductive rails L, an intermediate frame 22 attached to the shafts 21, a spring 23 for energizing to return the shafts 21 to the central position in the sliding direction, a current collector holder 24, and a pair of links 25 coupled with the frame 2 in the state that the holder 24 is moved parallel to the protruding direction of the wall 10A. A spiral spring 26 for energizing to return the holder 24 to the rails L acts on the links 25.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a mobile device used for supplying electric power to a mobile object, transmitting travel control I information to a mobile object, etc. Concerning the electrically conductive structure of the body.

[Conventional technology]

The current-carrying structure of such a moving body generally includes a current-carrying rail installed along the moving direction of the moving body, and a pair of current collectors located at a distance in the front-rear direction of the moving body,
The current-carrying rail includes a rail main body made of a conductive material such as copper, a pair of protectors protruding from both sides of the rail body toward the current collector side, and made of non-conductive resin or the like. It is formed to include a wall portion.

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, and also to provide a pair of protective walls. The main purpose of this 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 of the electronic support frame (51A) and the front end of the rear collector support frame (511'I) rotate around axes (Xa) and (Xb) along the protruding direction of the protective wall, respectively. It is freely attached to the movable body, and the front end of the front current collector support frame (51A) and the rear current collector support frame (51A)
1B), a pair of current collectors (50), (50
) was installed. Incidentally, the front and rear current collector support frames (51A) and (51B) are pivotally supported around the axes (Ya) and (Yb) along the rail width direction, and are also supported by springs on the current-carrying rail side. energized. However, in the figure, (52) is iil! The rail is composed of a rail body (53) and a holder (54), and the holder (54) has a pair of protective walls (54).
^) is provided.

[Problem that the invention seeks to solve]

According to the above-mentioned conventional structure, four
7 Electrons may be strongly pressed against the protective wall, and as a result, not only is there a risk of early damage to the current collector and the protective wall, but the contact of the current collector with the protective wall may cause abrasion of the protective wall. Powder is generated, and the abrasion powder forms on the surface of the rail body.
There was also the disadvantage that the first place was likely to cause electrical failure.

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 at the front end of the current collector support frame that protrudes in the moving direction of the moving body and moves 12 times using the rear end as a fulcrum. This is caused by attaching the electrons, and if the electron collector is attached to a collector support frame that protrudes in the opposite direction to the moving direction of the moving body and moves 18 times with the front end as a fulcrum, the collector Electrons are not strongly pressed against the protective wall. Therefore, if the moving body moves only in one direction, neither of the pair of electron collectors can be provided so that they are not strongly pressed against the protective wall. However, moving bodies are generally used to move forward or backward, and it is unavoidable for the current collector to come into strong (pressure) contact with the protective wall.

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

[Means for solving problems]

The characteristic structure of the 1111 electric structure of the moving body according to the present invention is such that the central part of the current collector support frame in the vehicle body longitudinal direction is around an axis along the protruding direction of the protective walls provided on both lateral sides of the rail main body of the current carrying rail. is rotatably attached to the movable body, and the! ! The electrons are attached to the front end and the rear end of the mi recorder electronic support frame, and their functions and effects are as follows.

[For production]

That is, a pair of j! The electrons oscillate like a seesaw, and as a result, when the current collector on the side in the direction of movement of the moving body comes into contact with the protective wall, the jW electrons on the side opposite to the direction of movement of the moving body also touch the protective wall. came into contact, 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 moving direction side 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 decreases,
It is possible to prevent damage to the current collectors and protective walls at an early stage, and also to suppress the generation of abrasion powder on the protective walls, thereby avoiding conduction failures as much as possible. Therefore, we have achieved a power-carrying structure for a moving body that has great practical advantages.

〔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 (ν) as a moving body having a pair of front and rear running wheels (LA) and (l[I) is provided, and the vehicle body (V) A guide rail (A) for movably supporting is provided, and a conveyance facility is configured in which articles are conveyed while the vehicle body (8) is driven by a linear motor.

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

As shown in FIG. 3, the guide rail (A) has a substantially U-shaped longitudinal section, and has grooves (2A) on the upper surface of the lower wall and the lower surface of the upper wall, respectively. (2B)
is formed, and an energizing rail unit (U) is attached to the inner surface of the lateral side wall. Said upper and lower concave? R(
2A) and (2B), the pair of running wheels (IA) are in the lower groove (2A).

(IB) is engaged, and the concave groove (2A) below it
Against this, eight anti-sway rollers (3) are provided, one pair each on the left and right, in front and rear of each running wheel (IA), (1B), and for the upper groove (2B). hand,
Four anti-sway rollers (4) are provided, one pair each on the left and right sides, respectively, at the front and rear of the vehicle body (V).

The secondary conductor (P) is assembled to the lower wall of the guide rail (8) while also serving as the guide rail (A) itself. That is, the guide rail (8) is formed of a non-magnetic material such as aluminum, so that the lower surface portion (P,) of the guide rail (A) acts as a non-magnetic material for forming the secondary conductor. It has become.

A pair of left and right cavities (5) along the longitudinal direction of the rail is formed in the lower wall of the guide rail (8), and a magnetic material (P2) such as iron for forming a secondary conductor is inserted into the cavity (5). ), and a magnetic material (+M (6) for fixing P) is inserted from the lateral side of the guide rail (A).

The current-carrying rail support frame I-(U) is supplied with three-phase AC power from an external power source (E) to drive the primary coil wrapping on the vehicle body side and various devices installed on the vehicle body (ν). The three power supply rails (rl) used for
It is equipped with five energizing rails (L) consisting of two signal rails (r2) for transmitting and receiving control signals between the rails and the rails that support each energizing rail (L) in parallel. The support frame (7) is secured to a pair of upper and lower locking portions (8), (8) provided on the guide rail (A) with screws.

As shown in FIG. 6, each of the current-carrying rails (L) includes a rail 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) includes the rail body (9).
) A pair of protective wall portions (10A) protruding from both lateral sides of the body toward the current collector side, which will be described later.

(10A) is provided.

The conveyance vehicle body (V) has a pair of front and rear main frames (11) each having a substantially U-shaped shape when viewed in the front and rear directions.

(11) and a connecting frame (12) that connects these main frames (11). The main part is a carrier for transporting goods (
13) is provided at the bottom of the vehicle body.

The secondary coil (C) is connected to the connection frame (
12), and in order to avoid contact between the secondary coil (C) and the guide rail (A), the guide rail (
A pair of front and rear wheels (14) for spacing regulation that can freely contact A)
is provided.

Further, the traveling wheels CIA), (1B) and the steady rest rollers (3), (4) are connected to the main frame (
11) and is attached to the collector unino l-(D)
However, the bracket (1) connected to the main frame (11)
5).

However, in the figure, (16) is an electromagnetic traveling brake, which is attached to the rear traveling wheel (IB). 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 (18).

Therefore, the central control device (B) and the vehicle body side control device (11
), and while detecting the position and running speed of the vehicle body (V) based on the detection information from the rotary encoder (17),
By controlling the energization to the magnetic brake (16), the vehicle body (
V) is configured to start, accelerate, decelerate, and stop the vehicle.

As shown in FIGS. 1 and 2, the current collector unit (D) includes a pair of current collectors (18) and (1B) for each current-carrying rail (L), and 1 a pair of current collectors (18) for one current-carrying rail (L),
(18) are located at intervals in the longitudinal direction of the vehicle body (V).

The support structure for the current collector (18) will be explained below.

That is, one current collector support frame (19) is provided, and its central part in the longitudinal direction of the vehicle body (V) is rotatable around the axis (X) along the protruding direction of the protective wall (10A). installed on. This collector support frame (work 9) includes a base frame (19A) rotatably attached to a bracket (15) on the vehicle body side by a pivot pin (20), and a base frame (19A) rotatably attached to the bracket (15) on the vehicle body side.
9A), a pair of front and rear sliding shafts (21) slidably penetrating the current-carrying rail (L) in the width direction;
), a spring (23) that urges the sliding shaft (21) to return to the central position in the sliding direction, a current collector holder (24), and the current collector holder (2).
4) to the intermediate frame (22) in a state where it can be moved in parallel in the protruding direction of the protective wall (10A), and the current collector holder (24) is connected to the energizing rail (L).
) A helical spring (26) is provided to act on the link (25).

The intermediate frame (22) is fitted onto a pair of sliding shafts (21), and pins (27) for positioning the intermediate frame (22) are provided at both upper and lower ends of each sliding shaft (21). ) is penetrated,
Intermediate frame (22) with pin (27) via washer (28)
It is designed to catch and hold. Also, the intermediate frame (22
) are provided with link pivot parts (22A) in five upper and lower stages at both the front and rear ends of the
A link pivot pin (29) is passed through.

Therefore, a pair of current collectors (1
B), (1B) swing like a seesaw along the rail width direction, and these collectors (1B), (18)
By making both contact with the protective wall (10A), the contact pressure against the protective wall (10A) is reduced. Also, 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 lateral rj1 direction of the current carrying rail (L), that is, , move vertically, and in this case, the current collector (
18) and (18) are prevented from being strongly pressed against the protective wall (10A).

Incidentally, a cut groove (K) is provided at an intermediate location in the front and back direction of the collectors (1B) and (1B) for the purpose of providing a cleaning function.

[Another example]

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

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, the protective wall (10A
) may be provided rotatably around an axis (X) along the protruding direction.

In addition, 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, but a pair of current-carrying current collectors (18) for each of the current-carrying rails (L) are swung together. 18) 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 example of the energizing structure of a moving body according to the present invention,
Fig. 1 is a partially cutaway plan view of the collector support structure, Fig. 2 is a side view of the same structure, Fig. 3 is a longitudinal sectional front view showing the support structure of the current-carrying rail, and Fig. 4 is a schematic side view of the transfer equipment. FIG. 5 is a schematic front view of the same equipment, and FIG. 6 is a longitudinal sectional front view of the current-carrying rail. FIG. 7 is a schematic diagram of a conventional current collector support structure. (9)...Rail body, (10A), (1
0A)...Protective wall part, (18)...Current collector, (19)...Current collector support frame, (L)...
...Electricity rail, (V) ...Moving object, (X
)・・・・・・Axis core.

Claims (2)

[Claims] (1) A current-carrying rail (L) installed along the moving direction of the moving body (V), and a pair of current collectors (18) located at intervals in the front-rear direction of the moving body (V), ( 18), the current-carrying rail (L) includes a rail body (9) and a pair of protective walls (10A), (10A) protruding from both lateral sides of the rail body toward the collector side. A current-carrying structure of a moving body formed to include a current collector support frame (19
The central part of the vehicle body in the longitudinal direction of the moving body (
V), and the pair of current collectors (18), (18
) are attached to the front end side and the rear end side of the current collector support frame (19). (2) The current collector support frame (19) is connected to the current collector (18).
) is movably supported in the width direction of the current-carrying rail (L).