JPH10169522A - Intake device for working vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate maintenance for an air cleaner, etc., improve the durability of the air cleaner, and prevent the sounding of the noise of the air cleaner. SOLUTION: In this device, an engine 20, having a silencer 40 and an air cleaner 43, is provided on a machine body frame 1 having a travel device 3, and an engine cover 49 having the outside air intake part 50 of an outside air suction part on the side part of the engine 20, and forming an intake system path inside it is provided movably outsideward. Consequently, the intake system path of the engine cover 49 and the silencer 40 are to be connected and disconnected by the movement of the engine cover 49 in this constitution.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intake device for a work vehicle such as a silencer or an air cleaner provided in a work vehicle such as a combine.

[0002]

2. Description of the Related Art Although not known in the prior art, Japanese Patent Application No. 7-308238 filed by the same applicant supports an engine on a body frame having a traveling device, and mounts an engine above the engine via a dustproof body. Except for a duct that allows air to pass through, an intake box whose periphery is closed is provided, and in the intake box, an air cleaner having one end communicating with the duct and the other end communicating with the engine is provided, and electrical components such as a controller box are provided. There has been proposed a configuration of a work vehicle characterized by being provided.

[0003]

The prior art described above has a problem in that no measures have been taken with regard to maintenance of the air cleaner and reduction of noise during intake.

[0004]

The object of the present invention is to facilitate maintenance of an air cleaner or the like, to improve the durability of the air cleaner, and to prevent the noise of the air cleaner.

[0005]

According to the present invention, an engine 20 having a silencer 40 and an air cleaner 43 is provided on a body frame 1 having a traveling device 3, and the engine
The engine cover 49 having an outside air intake portion 50 and an outside air intake portion 50 on the side of the engine cover 49 and having an intake passage formed therein is provided so as to be movable outward. And a silencer 40 is connected to and disconnected from the work system.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Denotes a body frame of a working vehicle, which will be described using an example of a combine. A traveling device 3 including a pair of right and left crawlers 2 is provided below the body frame 1, a threshing device 4 is provided on one side above the traveling device 3, and a threshing device 4 is provided at a side portion of the threshing device 4. A grain tank 5 for storing the obtained grains is provided, and a control section 6 is provided in front of the grain tank 5. The control unit 6 includes a step 7 on which an operator stands, a driving seat 8 on which the operator sits, and an operation box 9 provided with switches and levers provided in front of the driving seat 8.
Reference numeral 10 denotes an entry / exit port for getting on / off at step 7. The driver's seat 8 is mounted on a mounting frame 12. Mounting frame 1
2, the front end of the upper front and rear frame 14 is connected to the outer end of the upper horizontal frame 13 to form an inverted L-shape in plan view, and the upper end of the side vertical frame 15 is connected to the rear end of the upper front and rear frame 14. Then, the rear end of the side front / rear frame 16 in the front / rear direction is continuously provided below the side vertical frame 15. A lower portion of a vertical support frame 18 is provided in the body frame 1 on the entrance 10 side in front of the Glen tank 5, and the mounting frame 12 is rotatably mounted on the vertical support frame 18 by seat mounting members 19, 19.

An engine 20 is provided below the driver's seat 8, and a radiator 21 is arranged on the engine 20 at the entrance 10. The radiator 21 is attached to a radiator frame 22 and a rear vertical frame 23 of the radiator frame 22 is provided.
The vertical support frame 1 by the radiator mounting members 24, 24.
8 to be freely rotatable. The operation box frame 27 of the operation box 9 is provided on the front side of the body frame 1, the front end of the side frame 30 in the front-rear direction is fixed to the operation box frame 27, and the rear end of the side frame 30 is connected to the engine. The vertical support frame 18 and the vertical frame rod 32 are fixed to the engine rear frame 31 provided on the rear side of the engine 20. Thus, an intake box 33 is provided behind the driver seat 8 and above the engine 20. Intake box 3
3 is formed in a box shape that forms a closed space without an opening, and in the embodiment, a top plate 34, a bottom plate 35, a front plate 36, and a rear plate 3
7, the inner side plate 38 and the outer side plate 39.

In the intake box 33, a silencer 4 is provided.
0 is provided. The silencer 40 is fixed to the bottom plate 35 of the intake box 33, and the outside air supply port 41 of the silencer 40 is connected to the intake port 4 of the air cleaner 43 through a connecting member 42.
4 is connected, and the air supply port 45 of the air cleaner 43 and the engine 20 are connected by the connecting member 46. The air cleaner 43 is attached to the lower surface side of the bottom plate 35 by an air cleaner stay 47. A detachable lid 48 is provided on the outer side of the air cleaner 43, and when the lid 48 is opened, the air cleaner element ( (Not shown). In addition, in side view, the air cleaner 43 is behind the engine 20 and the air cleaner 4.
3 is arranged so that most of the part overlaps with the radiator 21. Although not shown, the intake box 33
There is a controller stay inside, a controller box, a relay for various devices,
Provide electrical components such as a fuse box. An engine cover 49 is provided on the side of the intake box 33. The engine cover 49 is formed in a so-called hollow shape having a width in the left-right direction with respect to the traveling direction, and an external air intake portion 50 is provided on a part or all of the outer surface side of the engine cover 49. A dustproof body formed by the above is provided. The engine cover 49 on the side of the radiator 21 has a partition plate 51 formed of a net, a perforated plate, or the like.
Is provided, and the air path of the radiator fan 52 is secured.

The engine cover 49 is provided with a duct 53 projecting inward, and the duct 53 is fitted to the silencer intake port 54 of the silencer 40. That is, since the intake box 33 is formed as a closed space without an opening by the top plate 34, the bottom plate 35, the front plate 36, the rear plate 37, the inner side plate 38, and the outer side plate 39, the opening provided in the outer side plate 39 A duct 53 is inserted from a portion (not shown) and fitted into the silencer intake port 54. In addition, duct 5
Reference numeral 3 is not an essential requirement, and a configuration may be adopted in which the silencer intake port 54 provided in the silencer 40 projects from the outer side plate 39 and opens into the engine cover 49. Therefore, the engine cover 49 draws in outside air from the outside air intake section 50 and supplies the sucked outside air to the engine 20 through the silencer 40 and the air cleaner 43.
The engine cover 49 forms an intake system for supplying outside air to the engine 20. Therefore, only the clean air that has passed through the outside air intake 50 of the engine cover 49 enters the silencer 40. Thus, the engine cover 49 is mounted and fixed to the mounting frame 12,
The engine cover 49, together with the driver seat 8 and the mounting frame 12, also pivots outward about the seat mounting member 19. Therefore, the engine cover 49 and the driver's seat 8 rotate outward rearward, and following the engine cover 49, the radiator 21 also independently rotates outward rearward in the same direction.

The engine cover 49 is configured such that the connection between the intake system of the engine cover 49 and the silencer intake port 54 of the silencer 40 is brought into contact with or separated from the engine cover 49 by moving the cover 49. In the embodiment, the engine cover 49 rotates in a so-called vertical axis centering on the seat mounting member 19, but rotates in a so-called horizontal axis (axial direction parallel to the machine body traveling direction) to the intake system of the engine cover 49. The silencer 40 may be separated from the silencer intake port 54. FIG. 7 shows a second embodiment, in which the silencer 40 is fixed to the engine cover 49 side, and rotates outward together with the engine cover 49. Therefore, the silencer 40 is configured to be separated from the outside air supply port 41 and the portion of the connection member 42, and the separated portion is connected and disconnected by the rotation of the engine cover 49. Reference numeral 57 denotes an elastic sealing member provided in the separation portion, so-called O-ring, which improves (secures) the airtightness of the connection portion between the outside air supply port 41 and the connection member 42. FIG. 9 shows a third embodiment, in which the silencer 40 and the air cleaner 43 are fixed to the engine cover 49 side, and are configured to rotate outward together with the engine cover 49. Therefore, the air cleaner 43 is arranged so as not to interfere with the radiator 21 when moving, and is separated from the portion 45 and the connecting member 46. The connection portion between the connection member 45 and the connection member 46 is configured in the same manner as the connection portion between the outside air supply port 41 and the connection member 42, and the connection and disconnection of the separation portion are performed by turning the engine cover 49. A seal member 57 is provided at the connection portion. In addition, silencer 40
In order to move the air cleaner 43, the bottom plate 35 and the outer side plate 39 of the intake box 33 are omitted and the engine cover 49 side and the engine 20 side are opened in the embodiment. However, this point is not a requirement, and the bottom plate is not required. It is also possible to provide the intake box 33 with a closed structure by providing an opening 35 that can be opened and closed.

The engine cover 49 on the side of the driver's seat 8 is provided with an opening 58 provided with a dust-proof body such as a net.
It is expected to provide ventilation and cooling around the area. Reference numeral 59 denotes an opening for providing the duct 53 provided on the engine cover 49. 60 is an upper horizontal frame 1 of the mounting frame 12
3 is a plate supporting member provided at the inner end of the device, 61 is an engaging hook, 62
Is an engagement rod provided on the side frame 30, and 63 is a lock operation lever. The lock operation lever 63 rotates the engagement hook 61 downward to release the lock, and rotates the engine cover 49. Then, the engine cover 49
A roller 65 is provided at the lower end of the roller, and an auxiliary step 64 is provided below the roller 65. When the engine cover 49 is rotated outward, the roller 65 rolls on the upper surface of the auxiliary step 66 and supports the engine cover 49. I do. The auxiliary step 66 is urged by the spring 67 so as to be always in the stowed storage state, and when the engine cover 49 is opened,
The auxiliary step 66 also rotates to a substantially horizontal position and retracts so as not to hinder the outer movement of the engine cover 49.

The auxiliary step 66 of the embodiment is provided on the side of the storage hopper provided on the side of the threshing device 4 instead of the Glen tank, and is used for bagging the grains in the storage hopper. The steps used are shared. Therefore, when the front end of the auxiliary step 66 on the side of the storage hopper faces the side of the engine cover 49 and the engine cover 49 is opened, the auxiliary step 66 not only retracts, but also rotates with the engine cover 49. It is of course possible to set the operating state irrespective of this, and although not shown, an operating mechanism for maintaining the operating state against the spring 67 is provided. 68 is a mowing part, 69 is a weeding body, 70 is a raising device, 7
1 is a conveying device, 72 is a cutting blade, 73 is a grain culm supply and conveying device,
74 is a grain discharge auger, and 75 is a cover.

[0013]

Next, the operation will be described. The user sits on the driver's seat 8, starts the engine 20, and runs the traveling device 3 to perform work. Thus, an intake box 33 formed by a top plate 34, a bottom plate 35, a front plate 36, a rear plate 37, an inner side plate 38, and an outer side plate 39 is provided behind the driver seat 8 and above the engine 20. Silencer 4 in box 33
0, and the engine 20 is connected to the silencer 40 via the air cleaner 43, and the silencer intake port 54 of the silencer 40 is connected to the intake passage of the engine cover 49.
The air passing through 0 flows into the engine 20 via the silencer 40 and the air cleaner 43. In this case, since the silencer 40 is provided in the closed intake box 33, noise during intake is further reduced. Further, since the air that has passed through the outside air intake 50 on the outer surface of the engine cover 49 flows into the silencer 40, fresh outside air always flows through the silencer 40, thereby preventing clogging.

Further, since the connecting member 42 for connecting the silencer 40 and the air cleaner 43 is provided in the intake box 33, the air supplied to the engine 20 is the clean outside air that has passed through the engine cover 49. As it is supplied, it improves the combustion efficiency and contributes to an increase in output and durability. Although the silencer 40 may have any configuration, even if it is made of synthetic resin, since it is provided in the intake box 33, it is prevented from being damaged by an external impact, and the durability is improved. The engine 20, the silencer 40, and the side surfaces of the air cleaner 43 are surrounded by the engine cover 49, and the engine cover 49 is configured to be rotatable outward around the seat mounting member 19 of the vertical support frame 18. And air cleaner 43 and engine 2
Since the side of the zero is opened, maintenance is facilitated.

In this case, a detachable (openable / closable) lid 48 is provided on an exposed portion on the outer side of the air cleaner 43,
Since the air cleaner element 43 is provided with an air cleaner element, the lid 48 can be opened immediately when the engine cover 49 is opened, and the air cleaner element is replaced by opening the lid 48. Further, since the intake passage of the engine cover 49 and the silencer 40 are connected so as to be brought into contact with and separated from each other by the rotation of the engine cover 49, the connection work does not have to be performed every time the engine cover 49 is opened and closed. Improve workability and workability. That is, since the duct 53 provided in the engine cover 49 and the silencer intake port 54 are connected, the duct 53 is connected to and disconnected from the silencer intake port 54 by the rotation of the engine cover 49, so that operability and workability are improved. Improve. The engine cover 49 is specifically mounted on the mounting frame 12 on which the driver's seat 8 is mounted.
2 is rotatably mounted on the vertical support frame 18 provided on the body frame 1 by the seat mounting member 19, so that when the engine cover 49 is rotated outward, the driver seat 8 is also rotated outward and the engine 20 is rotated. The upper part and the front part can be opened to make maintenance easier.

Thus, the silencer 40 is disposed at the uppermost position, and the air cleaner 43 is disposed below the silencer 40.
And the engine 20 is provided below the air cleaner 43, so that the silencer 40 and the air cleaner 4
3 and the engine 20 can be connected in the shortest distance, thereby improving the intake port ratio. Since the silencer 40, the air cleaner 43, and the engine 20 are close to each other, the time during which the air is warmed is short, and the output of the engine 20 is improved. By arranging the radiator 21 between the engine cover 49 and the engine 20 and arranging the air cleaner 43 behind the radiator 21, most of the air cleaner 43 overlaps with the radiator 21 in a side view. The height of the aircraft can be reduced by effectively utilizing the space. In this case, not only the engine cover 49 but also the radiator 21 is attached to the radiator mounting member 2 of the vertical support frame 18.
When the radiator 21 is rotated after the engine cover 49 is rotated, the side portion of the engine 20 and the periphery of the air cleaner 43 are opened, and the engine 20 is rotated. Not only maintenance of the radiator 21 but also maintenance of the air cleaner 43 described above is facilitated, and effective use of space can be achieved without sacrificing maintenance workability.

In the second embodiment shown in FIG.
Is fixed to the engine cover 49 side.
Since the rotation of the silencer 40 is performed together with the rotation, the maintenance of the silencer 40 is facilitated. In the third embodiment shown in FIG. 9, the silencer 40 and the air cleaner 43 are fixed to the engine cover 49 and are configured to rotate outward together with the engine cover 49. Becomes easier. The connection between the outside air supply port 41 and the connection member 42 of the second embodiment, and the connection between the third embodiment 45 and the connection member 46,
Since the connection and disconnection of the separation portion are performed by the rotation of the engine cover 49, the connection work does not have to be performed every time the engine cover 49 is opened and closed, and the operability and workability are improved. The engine cover 49 on the side of the driver's seat 8 is provided with an opening 58 provided with a dustproof body such as a net, so that the air passing through the opening 58 allows ventilation around the driver's seat 8 to ventilate. In addition, the outside of the engine cover 49 is likely to generate dust and clogging of the outside air intake portion 50 is likely to occur. However, since outside air is taken in from the opening portion 58, the intake efficiency is reduced, and Prevents a decrease in cooling efficiency. That is, since the part of the partition plate 51 acts so that air is sucked by the radiator fan 52, if the outside air intake part 50 side is clogged, the intake efficiency,
The cooling efficiency of the radiator 21 is reduced, but this is prevented.

When rotating the engine cover 49, the roller 6 is attached to the lower end of the engine cover 49.
5, the front end of the auxiliary step 66 on the side of the Glen tank 5 faces the side of the engine cover 49.
When the engine cover 49 is rotated, the rollers 65 roll on the auxiliary steps 66 to make the rotation smooth, and the weight of the engine cover 49 can be supported by the auxiliary steps 66.

[0019]

According to the present invention, an airframe 1 having a traveling device 3 is provided.
An engine 20 having a silencer 40 and an air cleaner 43 is provided, and an engine cover 49 having an outside air intake section and an outside air intake section 50 on a side portion of the engine 20 and having an intake system formed therein can be moved outward. In this case, the intake system of the working vehicle is configured so that the intake system of the engine cover 49 and the silencer 40 are disconnected from each other by the movement of the engine cover 49. Since the clean outside air is sucked from the intake system, the air intake efficiency of the air cleaner 43 can be improved, the clogging of dust and the like can be prevented, and the durability of the air cleaner can be improved.
Since 0 is provided, it is possible to prevent the generation of noise when inhaling air, and to facilitate the maintenance by moving the engine cover 49 outward.

[Brief description of the drawings]

FIG. 1 is a side view of a working vehicle (combine combine).

FIG. 2 is a perspective view of a control unit frame, an engine cover, and the like.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view of an intake box and an engine cover.

FIG. 5 is a vertical sectional front view of the same.

FIG. 6 is a plan view of the moving state of the engine cover.

FIG. 7 is a partially longitudinal front view of the second embodiment.

FIG. 8 is a front view of a connection portion of the second embodiment and the third embodiment.

FIG. 9 is a partially longitudinal front view of the third embodiment.

FIG. 10 is a perspective view of an engine cover.

FIG. 11 is a plan view of a work vehicle (combine combine).

FIG. 12 is a front view of an engine cover.

FIG. 13 is a front view of the engine cover with a part omitted.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Body frame, 2 ... Crawler, 3 ... Traveling device, 4 ...
Threshing device, 5 ... Glen tank (storage hopper), 6 ... Control unit, 7 ... Step, 8 ... Driver seat, 9 ... Operation box, 10 ... Entrance, 12 ... Mounting frame, 13 ... Top horizontal frame, 14 ... Top Front / rear frame, 15: side vertical frame, 16: side front / rear frame, 18: vertical support frame, 19: seat mounting member, 20: engine, 21: radiator, 22: radiator frame, 23: rear vertical frame, 24 ... Radiator mounting member, 27
... operation box frame, 28 ... connection frame, 29 ...
Control section frame, 30 side frame, 31 engine rear frame, 32 frame rod, 33 intake box, 34 top plate, 35 bottom plate, 36 front plate, 37 rear plate, 38 inner side plate 39: outside side plate, 40: silencer, 41: outside air supply port, 42: connection member, 43 ... air cleaner, 44 ... intake port, 45 ... air supply port, 46 ...
Connection member, 47: stay for air cleaner, 48: lid, 4
9 engine cover, 50 outside air intake, 51 partition plate, 52 radiator fan, 53 duct, 54 silencer intake port, 57 seal member, 58 opening
59 ... opening, 60 ... plate support member, 61 ... engaging hook,
62: engagement rod, 63: lock operation lever, 65: roller, 66: auxiliary step, 67: spring, 68: reaper,
69 ... anthracing body, 70 ... raising device, 71 ... transport device, 72
... Cutting blade, 73 ... Grain stalk supply and transport device, 74 ... Grain discharge auger, 75 ... Cover.

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[Procedure amendment]

[Submission date] May 2, 1997

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 4

FIG. 3

FIG. 5

FIG. 6

FIG. 7

FIG. 8

FIG. 9

FIG. 10

FIG. 11

FIG.

FIG. 13

Claims (1)

[Claims] 1. An engine 20 having a silencer 40 and an air cleaner 43 is provided on a body frame 1 having a traveling device 3, and an outside air intake section and an outside air intake section 50 are provided on a side portion of the engine 20, and an intake system is provided inside. An engine cover 49 having a path is provided so as to be movable outward, and the movement of the engine cover 49 causes the engine cover 49 to move.
An intake system for a working vehicle, wherein the intake system and the silencer 40 are connected and disconnected.