JP5359978B2 - Automated guided vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automated guided vehicle enabling the cooling efficiency of control panels to be increased. <P>SOLUTION: This automated guided vehicle 1 includes a vehicle body 2 and two front wheels 3 and two rear wheels 4. A front cover member 11 having a front cover is attached to the front part of the vehicle body 2. A plurality of air supply holes for supplying air to the inside of the vehicle body 2 are formed in the front cover. A rear cover member 15 having a rear cover is attached to the rear part of the vehicle body 2. A plurality of air discharge holes for discharging air from the inside of the vehicle body 2 are formed in the rear cover. An engine unit 22 including an engine and a generator, and two control panels 23 for controlling traveling motors 19, turning motors 21, the engine unit 22 and others are mounted on the vehicle body 2. The control panels 23 are disposed on both right and left sides of the engine unit 22, respectively. The gap between the rear surface of each control panel 23 and the side surface of the engine unit 22 forms an air flow passage 25. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to an automatic guided vehicle for automatically transporting a load.

  As a conventional automatic guided vehicle, for example, as described in Patent Document 1, a vehicle body having a cargo bed, four wheels supported by the vehicle body, a plurality of travel motors that respectively drive the wheels, and a plurality of vehicles A motor equipped with a steering motor and a control unit that controls each traveling motor and each steering motor is known.

JP 2010-20514 A

  Meanwhile, some automatic guided vehicles are provided with an engine, a generator, a hydraulic drive system, and the like in addition to the traveling motor and the steering motor (turning motor) as in the prior art. Such an automated guided vehicle is often equipped with two control panels because the number of objects to be controlled increases. In this case, when the control panel is arranged in front of and behind the vehicle body, the following problems occur.

  In other words, the traction motor, turning motor, engine, and generator are the main heat sources. However, if the control panels are arranged at the front and rear of the vehicle body, there is no air flow in the vehicle body while the automatic guided vehicle is running, and the vehicle Heat accumulates in the body. Further, although a cooling fan is provided in the control panel as a heat countermeasure, the efficiency of the cooling fan is also reduced due to heat retention. Therefore, it becomes difficult to sufficiently cool the control panel.

  The objective of this invention is providing the automatic guided vehicle which can improve the cooling efficiency of a control panel.

  The automatic guided vehicle of the present invention includes a vehicle body on which an engine unit is mounted, a plurality of wheels attached to the vehicle body, a plurality of drive motors that individually drive each wheel, and a vehicle body that is mounted on the vehicle body. Two control panels for controlling the motor, and each control panel is arranged on both the left and right sides of the engine unit with a distance from the engine unit. The front part of the vehicle body is used to introduce air into the vehicle body. A front cover having a plurality of air introduction holes is provided, and a rear cover having a plurality of air outlet holes for extracting air from the inside of the vehicle body is provided at the rear portion of the vehicle body. Is.

  As described above, in the automatic guided vehicle of the present invention, the two control panels are arranged on both the left and right sides of the engine unit with a distance from the engine unit, the front cover having a plurality of air introduction holes is provided at the front of the vehicle body, A rear cover having a plurality of air outlet holes is provided at the rear. For this reason, when the automatic guided vehicle travels, air is introduced into the vehicle body from the air introduction holes of the front cover, and the air passes through the gaps between the control panels and the engine unit, and the air outlet holes of the rear cover. Is derived from the vehicle body. Therefore, the heat generated by the heat source such as the engine and the drive motor is cooled by the air, so that the heat stays in the vehicle body. Thereby, the cooling efficiency of each control panel can be improved.

  Preferably, a connecting member for connecting each control panel and the engine unit is further provided so as to ensure an air flow path for passing air between each control panel and the engine unit. By providing such a connecting member, the rigidity of the control panel with respect to the lateral direction of the vehicle body can be achieved even when the control panel is thinned to form a desired gap for air passage between the control panel and the engine unit. Can be secured.

  Preferably, a cooling fan is provided inside the upper part of the control panel, and the vehicle body includes a frame body and a plurality of top plates arranged in an inner region of the frame body. Of these, at least the top plate disposed in the portion corresponding to the cooling fan is removable. In this way, by providing a cooling fan inside the upper part of the control panel and making it possible to remove the top plate arranged at the part corresponding to the cooling fan, the necessary top plate can be obtained while the operator is on the vehicle body. And the cooling fan filter can be replaced. Accordingly, even when the operator cannot enter between the control panel and the engine unit because the gap between the control panel and the engine unit is narrow, the filter replacement of the cooling fan can be performed reliably.

  According to the present invention, the cooling efficiency of the control panel can be improved. Thereby, it becomes possible to suppress the deterioration of the operation performance of the control panel due to heat.

It is a perspective view showing the appearance of one embodiment of the automatic guided vehicle concerning the present invention. It is a top view of the automatic guided vehicle shown in FIG. It is a side view of the automatic guided vehicle shown in FIG. It is the front view and rear view of the automatic guided vehicle shown in FIG. It is a top view in the state where there is no top plate in the automatic guided vehicle shown in FIG. It is a back view of a state without the top plate in the automatic guided vehicle shown in FIG. It is the VII-VII sectional view taken on the line of FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of an automatic guided vehicle according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an appearance of an embodiment of an automatic guided vehicle according to the present invention. 2 is a plan view of the automatic guided vehicle shown in FIG. 1, FIG. 3 is a side view of the automatic guided vehicle shown in FIG. 1, and FIG. 4 is a front view of the automatic guided vehicle shown in FIG. It is a figure and a rear view.

  In each figure, the automatic guided vehicle 1 of this embodiment is a cart that transports a marine container at a port terminal, for example, and automatically travels along a predetermined travel route. The automatic guided vehicle 1 includes a vehicle body 2 and two front wheels 3 and two rear wheels 4 attached to the vehicle body 2.

  The vehicle body 2 includes a frame body 5 formed of an H-shaped rope, and a plurality of top plates 6 arranged in an inner region of the frame body 5. The frame body 5 and the top plate 6 constitute a loading platform on which the container is placed.

  At the four corners on the upper surface of the frame body 5, L-shaped positioning guides 7 are provided so as to project the large container when it is placed on the loading platform. Two fixing walls 8 protrude from the positioning guides 7 on the upper surface of the frame body 5 on the left and right sides. A movable wall 9 is provided at a portion adjacent to each fixed wall 8. When the small container is placed on the loading platform, the movable wall 9 is in a standing state, and the fixed wall 8 and the movable wall 9 constitute a substantially L-shaped positioning guide for positioning the small container. When a large container is placed on the loading platform, the movable wall 9 is laid down so as not to get in the way.

  The top plate 6 has a small rectangular shape, and a plurality of the top plates 6 are arranged along the front-rear direction and the left-right direction of the vehicle body 2. The top plate 6 is bolted to, for example, the frame body 2 and a beam (not shown) extending in the front-rear direction, and can be removed.

  A front cover member 11 is provided at the front portion of the vehicle body 2. The front cover member 11 has a front cover 12 attached to the lower surface of the frame body 5 and a protrusion cover 13 protruding forward from the lower portion of the front cover 12. The front cover 12 is located on the inner side (rear side) than the front end of the vehicle body 2. The upper surface of the protrusion cover 13 is an inclined surface 13 a that becomes higher from the distal end of the protrusion cover 13 toward the base end side (front cover 12 side).

  The front cover 12 has a plurality of air introduction holes 14 for introducing air into the vehicle body 2. These air introduction holes 14 are formed, for example, by punching holes. At this time, since the front cover 13 is inside the front end of the vehicle body 2, it is possible to prevent rainwater and the like from entering the vehicle body 2 from the air introduction hole 14. Note that the number, shape, size, arrangement structure, and the like of the air introduction holes 14 are not limited to those shown in FIG.

  A rear cover member 15 is provided at the rear portion of the vehicle body 2. The rear cover member 15 includes a rear cover 16 attached to the lower surface of the frame body 5, and a protrusion cover 17 that protrudes rearward from the lower portion of the rear cover 16. The rear cover 16 is located on the inner side (front side) than the rear end of the vehicle body 2. The upper surface of the protrusion cover 17 is an inclined surface 17a that increases from the distal end of the protrusion cover 17 toward the base end side (rear cover 16 side).

  The rear cover 16 is formed with a plurality of air outlet holes 18 for extracting air from the inside of the vehicle body 2. These air outlet holes 18 have the same structure as the air inlet hole 14 described above. At this time, since the rear cover 16 is located inside the rear end of the vehicle body 2, it is possible to prevent rainwater and the like from entering the vehicle body 2 from the air outlet hole 18. Note that the number, shape, dimensions, arrangement structure, and the like of the air outlet holes 18 are not particularly limited to those shown in FIG.

  FIG. 5 is a plan view of the automatic guided vehicle 1 without the top plate 6, and FIG. 6 is a back view of the automatic guided vehicle 1 without the top plate 6.

  In each figure, the automatic guided vehicle 1 includes four traveling motors 19 that individually rotate and drive the front wheels 3 and the rear wheels 4, and turntables 20 (respectively attached to the front wheels 3 and the rear wheels 4). 4), and four turning motors 21 for individually setting the directions of the front wheels 3 and the rear wheels 4.

  The vehicle body 2 is equipped with an engine unit 22 including an engine and a generator, a hydraulic drive system (not shown), and two control panels 23. Since the automatic guided vehicle 1 is used outdoors near the sea, the engine unit 22 and the control panel 23 are hermetically sealed.

  The engine unit 22 is attached to the lower surface of the frame body 5 via a bracket (not shown), for example. On both side surfaces on the rear side of the engine unit 22, open / close doors 24 for maintaining the engine and the generator are provided.

  Although not particularly shown, the hydraulic drive system is provided between a hydraulic actuator that rotates the movable wall 9 and the like, a hydraulic pump that supplies hydraulic oil to the hydraulic actuator, and the hydraulic pump and the hydraulic actuator. And various electromagnetic valves. The hydraulic pump is operated by the engine.

  The two control panels 23 control the traveling motor 19, the turning motor 21, the engine and generator of the engine unit 22, the electromagnetic valve of the hydraulic drive system, and the like. Each control panel 23 is disposed on both the left and right sides of the engine unit 22. Each control panel 23 is offset forward with respect to the engine unit 22 so as not to interfere with the door 24 of the engine unit 22. On the front surface of the control panel 23, an operation panel having switches and indicators operated by an operator is provided. For this reason, the control panel 23 is disposed such that the front surface faces the left and right outer sides of the vehicle body 2.

  For example, a gap of about 100 mm is formed between the back surface of each control panel 23 and the side surface of the engine unit 22. This gap forms an air flow path 25 for passing cooling air (described later). As shown in FIG. 7, the lower end of the back surface of each control panel 23 and the lower end of the side surface of the engine unit 22 are connected by a connecting member 26. Thereby, even when the control panel 23 is thinned to avoid interference between the control panel 23 and the engine unit 22, the rigidity of the control panel 23 in the left-right direction of the vehicle body 2 can be enhanced.

  In addition, as a coupling | bond part of the connection member 26 in the control panel 23 and the engine unit 22, and the number of the connection members 26, if the air flow path 25 between the control panel 23 and the engine unit 22 is ensured, especially. It is not limited to the above.

  As shown in FIGS. 6 and 7, a cooling fan 27 for cooling the control panel 23 is built in the upper side (rear side) of each control panel 23. An open / close door 28 for replacing the filter of the cooling fan 27 is provided on the back surface of the control panel 23.

  When the operator replaces the filter of the cooling fan 27, the top plate 6 located at a position corresponding to the cooling fan 27 and the opening / closing door 28 is removed while being on the vehicle body 2, and the opening / closing door 28 is opened. Replace. Thereafter, the open / close door 28 is closed, and the removed top plate 6 is returned to the original position.

  In the automatic guided vehicle 1 of the present embodiment configured as described above, the two control panels 23 are disposed on the left and right sides of the engine unit 22, and a plurality of air introduction holes 14 are formed in the front cover 12 of the front cover member 11. And a plurality of air outlet holes 18 are formed in the rear cover 16 of the rear cover member 15, so that air is taken into the vehicle body 2 from the air introduction holes 14 during traveling, and the air is supplied to the control panel 23 and the engine unit. Through the gap between the air outlet hole 18 and the air outlet hole 18. At this time, since the upper surface of the protrusion cover 13 of the front cover member 11 is an inclined surface 13a that becomes higher from the distal end of the protrusion cover 13 toward the proximal end side, the air below the vehicle body 2 is inclined. It flows toward the air introduction hole 14 along the surface 13a. For this reason, a lot of air is taken into the vehicle body 2.

  Therefore, even if heat is generated by heat sources such as the engine and generator of the engine unit 22, the traveling motor 19, the turning motor 21, and the control panel 23, the interior of the vehicle body 2 is cooled by air, so Heat retention is prevented. Thereby, the cooling efficiency of the control panel 23 by the cooling fan 27 can be improved.

  Further, since the cooling fan 27 is provided in the upper part of the control panel 23, the gap between the control panel 23 and the engine unit 22 is narrow, so that even if an operator does not enter the back side of the control panel 23, the vehicle body 2 The top plate 6 can be removed from above and the filter of the cooling fan 27 can be replaced. Thereby, it becomes possible to use the cooling fan 27 effectively over a long period of time.

  The present invention is not limited to the above embodiment. For example, the automatic guided vehicle 1 of the above-described embodiment automatically transports a marine container, but the present invention is also applicable to a vehicle that transports luggage other than containers.

DESCRIPTION OF SYMBOLS 1 ... Automated guided vehicle, 2 ... Vehicle body, 3 ... Front wheel, 4 ... Rear wheel, 5 ... Frame body, 6 ... Top plate, 12 ... Front cover, 14 ... Air introduction hole, 16 ... Rear cover, 18 ... Air extraction Hole 19, traveling motor (drive motor), 21, turning motor (drive motor), 22, engine unit, 23, control panel, 25, air flow path, 26, connecting member, 27, cooling fan.

Claims (3)

A vehicle body with an engine unit,
A plurality of wheels attached to the vehicle body;
A plurality of drive motors for individually driving the wheels;
Two control panels mounted on the vehicle body and controlling the engine unit and each drive motor;
Each of the control panels is disposed on the left and right sides of the engine unit with a space from the engine unit,
The front portion of the vehicle body is provided with a front cover having a plurality of air introduction holes for introducing air into the vehicle body,
An automatic guided vehicle having a rear cover having a plurality of air outlet holes for leading out air from the inside of the vehicle body at a rear portion of the vehicle body.   2. The apparatus according to claim 1, further comprising a connecting member that connects each control panel and the engine unit so as to secure an air flow path for passing air between the control panel and the engine unit. The automatic guided vehicle described. A cooling fan is provided inside the upper part of the control panel,
The vehicle body has a frame body and a plurality of top plates arranged in an inner region of the frame body,
3. The automatic guided vehicle according to claim 1, wherein a top plate disposed at least in a portion corresponding to the cooling fan among the plurality of top plates is removable.

Images