JP5486626B2 - Combined engine air supply structure - Google Patents

Description

  The present invention relates to a combined engine air supply structure provided with an air cleaner in an air supply path to an engine.

  In such a combine, the engine is installed below the driver's seat of the driving control unit, and the air cleaner is also arranged in the vicinity of the engine. The air cleaner air inlet has an engine, a radiator, and an air cleaner to form an engine compartment below the driver's seat, and a dust-proof mesh structure is arranged around the engine compartment. In addition, an air supply port to the air cleaner was formed (Patent Document 1).

Japanese Patent Laid-Open No. 10-89068 (paragraph [0011], FIG. 3)

  In the conventional structure shown in Patent Document 1, since the air supply port for introducing air into the air cleaner is located below the driver seat, the air supply port is not high from the ground. As a result, even if air is supplied through a dust screen, dust or the like may be mixed in, and it is necessary to improve the structure for introducing air to the air cleaner. Therefore, it is considered that a pre-air cleaner is provided in addition to the air cleaner, and the pre-air cleaner is provided at a high position.

  An object of the present invention is to provide a combined engine air supply structure that can be configured so that an air supply structure can be easily assembled while supplying air at a position away from the ground.

According to the first aspect of the present invention, there is provided a ceiling extending portion formed by extending a ceiling portion of a cabin outward from a portion facing the cabin interior, a main body portion, and a lower portion extending from the main body portion. A pre-air cleaner having a protruding tip boss portion supported on the upper surface of the ceiling extension portion, an air cleaner disposed below the ceiling extension portion, and one end connected to the air cleaner And the other end of the air pipe and the tip boss part are connected in a state of vertically penetrating the ceiling extension part , and of the ceiling extension part , A recess is formed above a portion through which the other end of the air pipe and the tip boss pass, and the main body is accommodated in the recess.

  In the case of having a cabin in the combine, with this configuration, the pre-air cleaner is arranged on the upper surface of the ceiling extension of the cabin ceiling, so that air taken from the pre-air cleaner can be supplied to the air cleaner. it can. Therefore, clean air in the cabin ceiling can be supplied to the air cleaner as compared with the air below the operation control unit.

  With this characteristic configuration, the pre-air cleaner is attached to the cabin ceiling, so that the configuration for taking in clean air can be easily installed.

The characteristic configuration of the invention according to claim 2 is that the ceiling extending portion is formed by extending the ceiling portion to the rear side of the cabin, and the concave portion is formed at a rear end portion of the ceiling extending portion. Thus, the rear portion of the recess is open toward the rear.
According to a third aspect of the present invention, the concave portion is formed in a lateral outer end portion of the rear end portion of the ceiling extending portion, and the rear portion of the concave portion is opened rearward, and The laterally outer portion of the recess is open to the laterally outward direction.
Characterizing feature of the invention according to claim 4, as the upper end of the pre-air cleaner in the vertical direction is positioned at the upper end and substantially isotopic location of said ceiling portion, lies in the depth of the recess is set .

Characterizing feature of the invention according to claim 5, wherein the ceiling extending portion has a lower end portion of the portion where the pre-air cleaner is located among the previous SL ceiling extending portion is a portion facing the cabin interior of said ceiling portion It exists in the point comprised so that it may be located below the lower end part and the upper end part of the grain storage tank located behind the said ceiling extension part .
Characterizing feature of the invention according to 請 Motomeko 6, the portion where the pre-cleaner is positioned out of the ceiling extending portion, the connecting pipe extending through the ceiling extending portion vertically provided,
The pre-air cleaner is connected to the upper end of the connection pipe, and the air pipe is connected to the lower end of the connection pipe.
The characteristic configuration of the invention according to claim 7 resides in that the connection pipe is integrally formed with the ceiling extending portion.
With this feature configuration, the connecting pipe can be integrally formed when the ceiling part is molded, so that a bracket or the like for attaching the connecting pipe to the ceiling part is not necessary, and the connecting pipe is attached to the ceiling part. It does not require a manufacturing process to attach.

Combine side view The attachment structure of a pre air cleaner is shown, (a) is an exploded vertical side view showing a state before installation, (b) is a vertical side view showing a state after installation. Rear view showing the piping structure from the pre-air cleaner to the air cleaner and from the air cleaner to the engine provided on the rear surface of the cabin Side view showing a state in which an air cleaner or the like is provided at the rear of the cabin Longitudinal side view showing the mounting structure between the door frame of the cabin door and the fixed window glass

  The configuration of the combine will be described. As shown in FIG. 1, the combine is transported vertically to the front end of the traveling machine body 2 having the left and right crawler devices 1 to convey the weed culm 32, the pulling device 33, the reaping device 34, and the reaped cereal culm backward. The pre-cutting processing device 3 provided with the device 31 is mounted so as to be movable up and down around the horizontal axis X, the threshing device 5 on the rear traveling machine body of the pre-cutting processing device 3, and the grain storage tank 6 on the lateral side of the threshing device 5. , A grain unloading device 7 for unloading the grains from the grain storage tank 6 to the outside of the machine, and a driving control unit 4 disposed on the lateral side of the pre-cutting processing device 3 on the front side of the grain storage tank 6. A cabin 40 is provided in the portion 4 and configured.

  The configuration of the cabin 40 will be described. As shown in FIGS. 1 and 4, the cabin 40 is supported by an operating frame base 44 for mounting the cabin, a frame portion 45 erected at four corners from the operating frame base 44, and the frame portion 45. The ceiling part 42 is provided. A passenger door A is provided on one side of the cabin 40.

  The entrance door A will be described. As shown in FIGS. 1 and 5, the entrance door A has door frames 8 arranged on four sides, and a pair of upper and lower hinges 9 attached to a rear door frame portion 8B on the rear end side of the door frame 8. And attached to the side wall of the cabin 40 so as to be swingable.

  As shown in FIG. 5, the window frame frame 10 is arranged along the four sides of the door frame 8, and the four sides of the window frame frame 10 are attached and fixed to the four sides of the door frame 8, respectively. That is, the window frame frame 10 includes a plate-like attachment portion 10B that is bonded and fixed to the surface of the door frame 8 facing the cabin with the adhesive 13, and an attachment portion 10A that extends inwardly from the attachment portion 10B. Consists of.

  The mounting portion 10 </ b> A forms a recessed portion that opens inward, and the fixed window glass 11 is fitted and fixed together with the trim 12 in the recessed portion.

  Thus, since the plate-like attachment portion 10B is attached and fixed in a state where it is overlapped with the door frame 8, the attachment of the window frame frame 10 is refreshed, and the fixed window glass 11 can also be attached and fixed without rattling.

  As shown in FIGS. 3 and 4, the ceiling portion 42 is a molded product of resin, and includes an outer portion 42 </ b> A positioned above and an inner portion 42 </ b> B facing the driving control portion, and the outer portion 42 </ b> A An air conditioner 46 is provided between the inner part 42B and the air conditioner can be air-conditioned.

  The engine E is disposed in the engine bonnet 16 on which the driver's cockpit 43 is placed in the driver's control unit 4, and the air cleaner 17, the condenser 18 of the air conditioner 46, and the cooling fan 19 are disposed on the rear side of the engine bonnet 16. It has.

As shown in FIGS. 1 to 4, a pre-air cleaner 20 having a main body portion 20b and a tip boss portion 20a extending downward from the main body portion 20b at the rear end portion and the right end position of the ceiling portion 42 is equipped. An air pipe 26 suspended from the pre-air cleaner 20 is connected to the air cleaner 17.

  As shown in FIG. 3, a cylindrical shaft 21 in a vertically oriented posture is supported on the left side at the rear end of the cabin 40 so as to be rotatable around an axis Y of the cylindrical shaft 21, and the cylindrical shaft 21 is attached to a bracket 22. It is attached to the frame part 45 of the cabin 40 via A relay pipe 23 that rotates integrally with the cylinder shaft 21 is fixed to an intermediate position between the upper and lower sides of the cylinder shaft 21, and a guide air pipe 28 that guides air from the air cleaner 17 is connected to the relay pipe 23.

  Above the relay pipe 23, an output pipe 24 is loosely fitted so as to be rotatable relative to the cylindrical shaft 21 and the relay pipe 23, and an output side air pipe 25 is connected and fixed to the output pipe 24. The output side air pipe 25 is connected to the engine E.

  With the configuration described above, when maintenance is performed around the engine E, the entire cabin 40 can be swung open around the axis Y of the cylindrical shaft 21 to proceed with the work. When the cylindrical shaft 21 rotates integrally with the cabin 40, the output pipe 24 is connected to the engine E fixed to the body frame side via the output-side air pipe 25 and rotates relative to the cylindrical shaft 21.

  Therefore, the air from the air cleaner 17 is guided into the relay pipe 23 via the guide air pipe 28 and passes through the double pipe of the relay pipe 23 and the cylindrical shaft 21 and the output pipe 24 and the cylindrical shaft 21. , Enters the output side air piping 25 and is supplied to the engine E.

  Next, a connection structure between the pre-air cleaner 20 and the air pipe 26 suspended from the pre-air cleaner 20 will be described. As shown in FIG. 2A, the ceiling portion 42 is a molded product obtained by blow-molding a resin plate, and joins the outer portion 42A and the inner portion 42B so as to face the interior of the cabin 40. And a ceiling extending portion 42C formed by extending the ceiling portion 42 outward from the indoor ceiling portion 42D. That is, the ceiling extension part 42 </ b> C is formed by projecting the ceiling part 42 to the rear side of the cabin 40.

  A flange-like ceiling extension portion 42C is formed at the rear end portion of the ceiling portion 42 and at the right end position, with the outer portion 42A, the inner portion 42B, and the plate-like end portions being vertically stacked. The connecting pipe 27 is attached to the portion 42C so as to penetrate vertically. In production, this connecting pipe 27 is also integrally formed together with the outer part 42A and the inner part 42B.

  In the connecting pipe 27 configured as described above, the tip boss portion 20a of the pre-air cleaner 20 is attached to the upper half portion 27a protruding from the plate-like end portion 42a of the outer portion 42A. On the other hand, the tip boss portion 26a of the air pipe 26 is attached to the lower half portion 27b protruding from the plate-like end portion 42b of the inner portion 42B.

  With such a configuration, piping from the pre-air cleaner 20 to the air cleaner 17 is connected.

As shown in FIG. 2, in order to attach the pre-air cleaner 20, the pre-air cleaner 20 of the ceiling extending part 42C configured by overlapping the plate-like end part of the outer part 42A and the plate-like end part of the inner part 42B is disposed. The portion that has been recessed is a portion that is recessed from the bulging portion of the middle portion of the outer portion 42A, that is, a recess 42E that is recessed from the upper surface of the outer portion 42A and accommodates the main body portion 20a of the pre-air cleaner 20. Therefore, the upper end of the pre-air cleaner 20 is configured to have substantially the same height as the bulging portion of the outer portion 42A with the pre-air cleaner 20 attached to the connecting pipe 27.

As shown in FIGS. 2, 3 and 4, the concave portion 42E is provided in the ceiling extending portion 42C on the right end side on the rear side of the ceiling portion 42 with the rear side and the right side opened. Thea Ru. The ceiling extension part 42C has a lower end portion of the ceiling extension part 42C where the pre-air cleaner 20 is located, below the lower end part of the indoor ceiling part 42D of the ceiling part 42, and an upper end of the grain storage tank 6. It is comprised so that it may be located above a part.

  With such a configuration, the opportunity for the pre-air cleaner 20 to come into contact with another object can be suppressed, and resistance from running can be prevented.

[Other Examples]
(1) The connection pipe 27 that connects the pre-air cleaner 20 and the air pipe 26 need not be formed integrally with the ceiling portion 42. After the ceiling portion 42 is formed by blow molding, a method may be adopted in which a through hole is formed in the ceiling extending portion 42C, and the connecting pipe 27 is inserted into the through hole and bonded and fixed.

(2) As the connection pipe 27, a resin such as ABS may be used, but a metal such as aluminum can also be used. In this case, the connecting pipe 27 is inserted when the ceiling part 42 is blow-molded.

(3) The pre-air cleaner 20 may be in a state of protruding from the outer portion 42A in a state where the pre-air cleaner 20 is attached to the ceiling extending portion 42C.

6 Grain storage tank 17 Air cleaner 20 Pre-air cleaner
20a Tip boss
20b Body part 26 Air piping 27 Connection pipe 40 Cabin 42 Ceiling part 42C Ceiling extension part
42D Indoor ceiling (portion facing the cabin)
42E recess

Claims (7)

A ceiling extension formed by extending the ceiling of the cabin outward from the portion facing the cabin interior;
A pre-air cleaner having a main body part and a tip boss part extending downward from the main body part, and supported by the upper surface of the ceiling extension part;
An air cleaner disposed below the ceiling extension;
An air pipe having one end connected to the air cleaner, and
The other end of the air pipe and the tip boss are connected in a state of vertically penetrating the ceiling extension,
The engine supply air of the combine in which the recessed part is formed above the part which the other edge part of the said air piping and the said front-end | tip boss part penetrate among the said ceiling extension parts , and the said main-body part is accommodated in the said recessed part Construction.   The ceiling extension part is formed by extending the ceiling part to the rear side of the cabin, the recess is formed at the rear end part of the ceiling extension part, and the rear part of the recess is rearward The combine engine air supply structure according to claim 1, wherein the engine air supply structure is open.   The recessed portion is formed at a laterally outer end portion of a rear end portion of the ceiling extending portion, a rear side portion of the recessed portion is opened rearward, and a laterally outer portion of the recessed portion is laterally outward. The engine air supply structure for a combine according to claim 2, wherein the engine air supply structure is open toward the vehicle. As the upper end of the pre-air cleaner in the vertical direction is positioned at the upper end and substantially isotopic location of said ceiling portion, Combine according to any one of claims 1-3 in which the depth of said recess is set Engine air supply structure. It said ceiling extending portion has a lower end portion of the portion where the pre-cleaner is positioned out of the front Symbol ceiling extending portion is lower than the lower end portion of the portion facing the cabin interior of said ceiling portion and said ceiling extension The combine engine air supply structure of Claim 4 comprised so that it may be located above the upper end part of the grain storage tank located in the back of an exit part . A portion of the ceiling extension portion where the pre-air cleaner is located is provided with a connecting pipe penetrating the ceiling extension portion up and down.
The engine air supply structure for a combine according to any one of claims 1 to 5 , wherein the pre-air cleaner is connected to an upper end portion of the connection pipe, and the air pipe is connected to a lower end portion of the connection pipe. . The combine engine air supply structure according to claim 6 , wherein the connection pipe is integrally formed with the ceiling extending portion.

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