JP2011137378A - Working vehicle equipped with engine room - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the cooling efficiency of an intercooler by facilitating removal of dust adhered to the intercooler and by facilitating assembly and maintenance. <P>SOLUTION: A tractor includes an engine room in which the intercooler 12 is provided on a frame 21 with a hinge 24, which is arranged before an engine through a partition wall. The intercooler is provided at an upper part on the frame with the hinge and the hinge allows a lower side of the intercooler to rotate vertically. Therefore, removed dust is easily discharged downward, assembly or maintenance such as replacement and connection of piping is easy because the assembly or maintenance such as replacement and connection of piping can be performed at the upper part of the intercooler, and the cooling efficiency of the intercooler can be improved. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a work vehicle such as an agricultural vehicle or a construction vehicle provided with an engine room.

  2. Description of the Related Art Conventionally, a tractor that is an agricultural vehicle as a work vehicle may have a radiator, a hydraulic oil cooler, an intercooler, and an air conditioner condenser arranged in this order toward the front of the engine.

  The radiator cools the engine by allowing air to pass through rotation of the fan. The hydraulic oil cooler, intercooler, and air conditioner condenser arranged in front of the radiator allow air sucked by the radiator fan to pass through to cool the tractor hydraulic oil and cool the supercharged air to the engine. And the refrigerant of the air conditioner is cooled.

  However, since air passes through the radiator, each cooler, and the condenser, dust often adheres, and sometimes the dust must be removed.

  For this reason, as described in Patent Document 1, the intercooler and the like can be opened and closed.

Japanese Patent Laid-Open No. 2004-60606

  The intercooler described in Patent Document 1 can open and close the upper side with the lower part at the center. However, in the conventional intercooler, even if the upper part of the intercooler is opened and dust is removed, it is difficult to remove the dust because the removed dust accumulates in the lower part which is the rotation center.

  In addition, one end of a pipe that guides the cooled air by connecting the intercooler and the engine is connected to a lower part that is an opening / closing center of the intercooler. For this reason, it took time and effort to replace the pipes during assembly and maintenance.

  Furthermore, the other end of the pipe is connected to the upper part of the engine. For this reason, the piping is long because it is provided between the lower part of the intercooler and the upper part of the engine, and accordingly, the temperature of the cooled air rises, causing the cooling efficiency of the intercooler to deteriorate. .

  An object of the present invention is to provide a work vehicle equipped with an engine that can easily remove dust adhering to an intercooler, can be easily assembled and maintained, and has improved cooling efficiency of the intercooler.

  The present invention includes a fan (15) and a radiator (14) positioned in front of the engine (5), and air sucked by the fan (15) positioned in front of the radiator (14). 5) a partition wall (22) that prevents the air from being blown back to the front, an intercooler (12) positioned in front of the partition wall (22), and a fan ( 15), and a frame (21) for guiding the air sucked by 15), and the intercooler (12) is provided with an upper portion on a rotatable upper surface plate constituting the frame (21). A work vehicle (1) provided with an engine room (7), characterized in that the front surface of the radiator (14) can be opened with the lower side rotated upward.

  In the work vehicle (1) provided with the engine room (7) of the present invention, the upper portion of the intercooler (12) is provided on the rotatable upper surface plate constituting the frame (21). ) Is rotated upward, the front surface of the radiator (14) can be opened.

  Therefore, in the work vehicle (1) equipped with the engine room (7) of the present invention, when the intercooler (12) is rotated upward, the lower side of the intercooler (12) is opened and the radiator (14) Since the front surface of the intercooler (12) is opened, dust attached to the radiator (14) can be dropped and removed from the lower part of the intercooler (12), and the dust removing operation can be easily performed.

  Further, the upper part of the intercooler (12) is provided on the rotatable upper surface plate constituting the frame (21), so that assembly or maintenance such as connection and replacement of pipes can be performed on the upper part of the intercooler (12). It is possible to easily connect and replace pipes and to connect the upper part of the intercooler (12) and the upper part of the engine (5) with pipes. The effect of (12) being able to increase the cooling efficiency is also achieved.

  In addition, the code | symbol in the parenthesis mentioned above was attached | subjected in order to refer drawings, and does not limit a structure at all.

1 is a side view of a work vehicle according to an embodiment of the present invention. It is the partial front view which looked at the working vehicle of FIG. 1 from the left side, and is the figure which showed the capacitor | condenser for air conditioners, an intercooler, etc. FIG. 2 is a perspective view of a front portion of the work vehicle of FIG. It is the figure which opened the capacitor | condenser for air conditioners, the intercooler, etc. from the state of FIG. In FIG. 4, it is an enlarged view of the connection part of a frame and an intercooler. FIG. 5 is a front view of FIG. 4. FIG. 5 is a plan view of FIG. 4. It is the side view which looked at FIG. 4 from the right side.

  Hereinafter, a tractor as a work vehicle having an engine room according to an embodiment of the present invention will be described with reference to the drawings.

  A tractor 1 as a work vehicle shown in FIG. 1 includes a crawler type traveling device 2. An engine room 7 including an engine 5 and covered with an openable / closable bonnet 6 is provided at a front portion on a machine base (traveling machine body) 4 connected to the traveling device 2 by a traveling frame 3. A driver's seat 8 is provided in the center of the machine base 4.

  In the engine room 7, an air conditioner condenser 11, an intercooler 12, a hydraulic oil cooler 13, a radiator 14, and a fan 15 are arranged in order from the front to the rear (from left to right in FIG. 1). Has been.

  The radiator 14 cools the engine 5 using the air that is sucked from the front to the rear by the rotation of the fan 15. At this time, the hydraulic oil cooler 13, the intercooler 12 and the air conditioner condenser 11 arranged in front of the radiator 14 also cool the hydraulic oil of the tractor 1, cool the supercharged air to the engine 5 with the sucked air, and Cooling of the refrigerant of the air conditioner in the driver's seat 8 is performed.

  The air conditioner condenser 11, the intercooler 12, and the hydraulic oil cooler 13 are provided on the frame body 21 of the engine room 7 so as to be freely opened and closed. Between the hydraulic oil cooler 13 and the radiator 14, the air sucked by the fan 15 is prevented from hitting the engine 5 and blown back to the front. A partition wall 22 is provided to prevent transmission to the oil oil cooler 13 side. The partition wall 22 is provided with a frame body 21 and a radiator 14. The frame body 21 is provided on the front surface of the partition wall 22. The radiator 14 is provided on the engine 5 side in a through hole (not shown) formed in the partition wall 22.

  The air conditioner capacitor 11 located at the front is provided on the frame 21 with a hinge 23 at the left end in FIG. The right end side of the air conditioner capacitor 11 can be opened and closed horizontally in the direction of arrow A in FIG.

  The intercooler 12 positioned behind the air conditioner capacitor 11 is provided with the upper part above the frame body 21 in FIG. The lower side of the intercooler 12 can be opened and closed in the direction of arrow B in FIG.

  The hydraulic oil cooler 13 located behind the intercooler 12 is provided on the frame body 21 with a hinge (not shown) at the bottom in FIG. The upper side of the hydraulic oil cooler 13 can be opened and closed in the direction of arrow C in FIG.

  2 and 3, an outred pipe 31 that guides the supercharged air cooled in the intercooler 12 to the upper part of the engine 5 is connected to the upper right side of the intercooler 12. Similarly, an inred pipe 32 that guides the air sucked from the air filter 33 to the intercooler 12 is connected to the upper left portion of the intercooler 12.

  The upper part of the frame 21 is constituted by an upper bar 21a, an angle member 34 having an L-shaped cross section as an upper plate, and a hinge 24 that rotatably connects the angle member 34 to the upper bar 21a. And the upper part of the intercooler 12 is attached to the angle member 34 so that the intercooler 12 can be opened and closed in the vertical direction.

  The end portions of the outread pipe 31 and the inred pipe 32 are penetrated and held by the angle member 34 and connected to the upper portion of the intercooler 12.

  The intermediate portions 31a and 32a between the outread pipe 31 and the inred pipe 32 are flexible members made of rubber or resin, and are bent into an L shape. Except for the intermediate portions 31a and 32a of the outred pipe 31 and the inred pipe 32, they are formed of a metal member.

  An intermediate portion 31 a of the outread pipe 31 is attached to a notch 35 formed in a C shape at the upper right side of the partition wall 22. Similarly, the intermediate portion 32 a of the inred pipe 32 is attached to a notch 36 formed in a C shape on the upper left side of the partition wall 22. Rubber or resin protective edges 37 and 38 are attached to the notches 35 and 36 formed on the upper left and right sides of the partition wall 22. The protective edges 37 and 38 are formed by the metal partition wall 22 so that the intermediate portions 31a and 32a made of a flexible member of the outred pipe 31 and the inred pipe 32 are not damaged. Is provided to protect.

  In the above configuration, when removing dust adhered to the radiator 14, the air conditioner condenser 11 is opened in the direction of arrow A, then the intercooler 12 is opened in the direction of arrow B, and finally the hydraulic oil cooler 13 is installed. Open in the direction of arrow C.

  When the intercooler 12 is opened in the arrow B direction, the angle member 34 is fixed to the frame body 21 and the bolt 39 that prevents the intercooler 12 from being opened and closed unnecessarily is removed. When the intercooler 12 is opened in the direction of arrow B and opened at a predetermined angle, a bolt 39 is screwed into the female screw hole formed in the upper right portion of the frame body 21 from the outside to the inside, and the tip is framed. 21 to protrude inside. As a result, the intercooler 12 is held in a state where the angle member 34 is received by the bolt 39 and the lower side is opened.

  In this way, by opening the air conditioner condenser 11, the intercooler 12, and the hydraulic oil cooler 13, the front surface of the radiator 14 is opened, and the dust attached to the radiator 14 can be removed. Moreover, the dust adhering to the air conditioner capacitor 11, the intercooler 12, and the hydraulic oil cooler 13 in the opened state can be removed.

  Since the intercooler 12 is opened at the lower side, the dust attached to the intercooler 12 can be easily discharged downward, and the dust removal operation can be performed efficiently. In addition, as shown in FIGS. 4 and 5, the intercooler 12 is received by the bolt 39 and prevented from rotating in the closing direction, so that dust can be removed in a safe state.

  In this manner, when the dust removal operation is completed, the air conditioner condenser 11, the intercooler 12, and the hydraulic oil cooler 13 are closed to their original positions. At this time, the intercooler 12 is closed with the bolt 39 removed.

  As described above, the air conditioner condenser 11, the intercooler 12, and the hydraulic oil cooler 13 are opened and closed, but the intermediate portions 31a and 32a of the outred pipe 31 and the inred pipe 32 in the intercooler 12 are separated by the partition wall 22. And is deformed as the intercooler 12 is opened and closed. However, since the intermediate portions 31a and 32a are formed of a flexible member, the opening and closing of the intercooler 12 is not hindered. Moreover, it is hardly damaged.

  Furthermore, since the outread pipe 31 and the inred pipe 32 extend from the upper part of the intercooler 12 to the upper part of the engine 5, the pipes at the time of assembly and the replacement at the time of maintenance can be easily performed. Furthermore, the length can be shortened, the temperature rise of the air in the outred pipe 31 can be reduced, and the cooling efficiency of the intercooler 12 can be increased.

  The present invention can be applied not only to the agricultural tractor described above but also to a construction vehicle. Therefore, the work vehicle in the present invention is not limited to an agricultural tractor.

1 ... Tractor (work vehicle)
5 ... Engine 7 ... Engine room 11 ... Air conditioner condenser 12 ... Intercooler 13 ... Hydraulic oil cooler 14 ... Radiator 21 ... Frame body 23 ... Bulkhead 24 ... Hinge 31 ... Outred piping 31a ... Intermediate portion 32 ... Inred piping 32a ... Intermediate portion 34 ... An angle member (top plate)

Claims (2)

A fan and a radiator located in front of the engine;
A partition wall located in front of the radiator and blocking air sucked by the fan from hitting the engine and being blown back forward;
An intercooler located in front of the partition;
A frame body that is positioned around the intercooler and guides the air sucked by the fan;
The intercooler is provided with an upper part on a rotatable upper surface plate constituting the frame body, and the front side of the radiator can be opened in a state where the lower side is rotated upward.
A work vehicle equipped with an engine room. A pipe that connects the engine and the intercooler to guide air is supported by a partition wall near the top of the intercooler.
The work vehicle provided with the engine room according to claim 1.

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