JPH09126077A - Working vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve durability of an air cleaner by a method wherein an intake box is arranged through a dust-proof body in a position above the engine of a machine body frame, and electrical equipment, such as an air cleaner and a controller box, is arranged therein. SOLUTION: In a combine, an intake box 33 is arranged above an engine on the rear side of a driver's seat 8. An air cleaner 40 is arranged in the intake box 33, the intake port 41 of the air cleaner 40 is opened in the intake box 33, and an air feed port 42 is connected to an engine. A duct 43 is arranged on the outer side plate 39 of the intake box 33, and the duct 43 is brought into contact with an engine cover 44 with which the air cleaner 40 and the engine are surrounded. A dust-proof body 45 is arranged on the outer surface of the engine cover 44 and only air passing through the dust-proof body 45 is sucked through the duct 43 in the intake box 33. Further, electrical equipment, such as a controller box 51, a relay 53, and a fuse box 54, is arranged in the intake box 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to mounting of electric vehicles and air cleaners on a work vehicle.

[0002]

2. Description of the Related Art Conventionally, the publication number is unknown, but a driver's seat provided above a machine frame having a traveling device provided below, an engine provided below the driver's seat, and air connected to the engine. A work vehicle is known in which an air cleaner having a supply port and an intake port for airing outside air is provided, and electric components such as a controller box are provided near a driver's seat.

[0003]

In the above-mentioned known example, since the air cleaner is simply provided around the engine, there is much dust around the air cleaner, the intake efficiency of the air cleaner is poor, and the air cleaner is also clogged. There is a problem in durability. Further, there is a problem that the temperature around the engine is high due to heat radiation from the engine, the temperature of the air supplied to the engine by the air cleaner is high, and the combustion efficiency is low. Further, since noise is generated when the air cleaner takes in air, it is necessary to provide a device for noise suppression, which causes a problem that weight and cost increase. In addition, in the case of a work vehicle, electric components are provided around the driver's seat near the engine, but there is a problem in durability due to the fact that the ambient temperature rises due to heat radiation from the engine and dust adheres. is there.

[0004]

It is an object of the present invention to improve the intake efficiency of an air cleaner, the durability of an air cleaner, the combustion efficiency of an engine,
Prevention of noise generation, reduction of weight and cost in noise control,
Improved durability of electrical components, improved space utilization efficiency, and easier maintenance.

[0005]

According to the present invention, an engine 20 is supported on a machine body frame 1 having a traveling device 3,
Above the engine 20, there is an intake box 33 whose periphery is closed except for a duct 43 for passing air through a dustproof body 45.
And one end of the duct 43 is provided in the intake box 33.
Is provided with an air cleaner 40 that communicates with the engine 20 and the other end of which communicates with the engine 20, and electrical equipment such as a controller box.

[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 left and right crawlers 2 is provided below the machine body frame 1, a threshing device is provided on one side above the traveling device 3, and a grain threshed by the threshing device is provided on a side portion of the threshing device. A Glen tank 5 for storing the above is provided, and a control unit 6 is provided on the front side of the Glen tank 5. Control unit 6
Comprises a step 7 in which the worker stands, a driver's seat 8 on which the worker sits, an operation box 9 having switches and levers provided on the front side of the driver's seat 8, and the like. Reference numeral 10 denotes an entry / exit port for getting on / off at step 7. The driver's seat 8
Are mounted on the mounting frame 12. Mounting frame 12
The front end of the upper front 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 frame 14. The rear end of the side front-rear frame 16 in the front-rear direction is connected to the lower portion of the side vertical frame 15. Airframe frame 1 on the side of the entrance / exit 10 on the front side of the Glen tank 5.
Is provided with a lower portion of the vertical support frame 18, and the attachment frame 12 is rotatably attached to the vertical support frame 18 by seat attachment 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.

An air cleaner 40 is provided in the intake box 33. The air cleaner 40 fixes the upper end of the air cleaner stay 46, and
The lower end of is fixed to the bottom plate 35 and attached. The air cleaner 40 opens the intake port 41 into the intake box 33, and connects the air supply port 42 and the engine 20. A duct 43 is provided on the outer side plate 39, and the duct 43 is brought into contact with an air cleaner 40 and an engine cover 44 surrounding the engine 20. The engine cover 44 is formed in a so-called hollow shape, and a dustproof body 45 formed by a net, a filter or the like is provided on the outer surface of the engine cover 44, and only the air passing through the dustproof body 45 is introduced into the intake box 33 through the duct 43. It is configured to suck. Therefore, only the clean air that has passed through the dustproof body 45 of the engine cover 44 enters the intake box 33. The dustproof body 45 may be provided on the duct 43 instead of the engine cover 44.

Although the main body of the air cleaner 40 is attached by the air cleaner stay 46 and is located inside the intake box 33, the outer side portion of the air cleaner 40 is located outside the outer side plate 39 so that the outer side plate 39 is A detachable lid 48 is provided on the outer side air cleaner 40, and when the lid 48 is opened, an air cleaner element (not shown) in the air cleaner 40 can be replaced.
A controller stay 50 is provided in the intake box 33.
The controller stay 51 is provided with a controller box 51. A plurality of relays 52 for various devices are provided in the intake box 33, a fuse box stay 53 is provided in the upper part of the intake box 33, and a fuse box 54 is attached to the fuse box stay 53. And, the intake box 33 is
Without providing a special frame, a top plate 34, a bottom plate 35, a front plate 36, a rear plate 37, an inner side plate 38, an outer side plate 39, an air cleaner stay 46, an air cleaner 40, a controller stay 50, and a fuse box stay 53. It is configured as a strength member that reinforces each other, etc., to ensure the strength. It is of course possible to provide a special skeleton frame.

A cabin 5 is provided around the driver's seat 8.
5, an intake box 33 is provided between the vertical support frame 18 and the engine rear frame 31, and the rear frame 56 of the cabin 55.
As part of the frame. Further, in FIG. 9, the bottom plate 35 of the intake box 33 is formed flat, and the intake box 33 is provided with the vertical support frame 18 and the engine rear frame 31.
And between the rear frame 56 of the cabin 55 and a part of the frame of the cabin 55. Therefore, the top plate 34 is provided with an upper cover 57 that can be opened and closed, and the rear plate 37 is provided with a rear cover 58 that can be opened and closed to facilitate maintenance. Then, the engine cover 44
Is mounted and fixed to the mounting frame 12, and the engine cover 44 as well as the driver's seat 8 and the mounting frame 12 pivot outwardly around the seat mounting member 19. Therefore, the engine cover 44 and the driver's seat 8 rotate outward and rearward, and, following the engine cover 44, the radiator 21 also independently rotates outward and rearward in the same direction.

An elastic body 59 is provided on the engine frame 44 side of the radiator frame 22, and the elastic body 59 is brought into contact with the inner surface of the engine cover 44 to prevent the engine cover 44 and the radiator 21 from vibrating. Then, a plate support member 60 in the front-back direction is provided at the inner end of the upper horizontal frame 13 of the mounting frame 12, and the plate support member 60 is provided.
A U-shaped mounting member 61 is fixed to the shaft, a shaft 62 is rotatably mounted on the mounting member 61, and an engaging hook 63 is fixed to the shaft 62. The engaging hook 63 is provided on the side frame 30. The engaging rod 64 is engaged to stop the rotation of the driver's seat 8 and the engine cover 44. Although not shown, the shaft 62 is provided with a spring for constantly urging the engaging hook 63 in the engaging direction. The front end of the shaft 62 is formed on the lock operation lever 65 by protruding forward. In addition, a base portion of a support rod 66 that engages with the upper surface of the engaging rod 64 is rotatably attached to the shaft 62,
The engaging projection at the tip of the support rod 66 is engaged with the shaft 62. Although not shown, the support rod 66 is restricted from pivoting below the engaging rod 64 by a stopper provided on the mounting member 61. Therefore, the lock operating lever 65 pivots the engaging hook 63 downward. Even if the engaging hook 63 is unlocked by this, it does not interfere with this rotation, and even if the engaging hook 63 rotates downward when locking the engaging rod 64, the engaging hook 63 retains its position and the engaging hook 63 is retained. When locked, the engagement protrusion 48 causes the engagement rod 6 to
4 to support the load applied to the driver's seat 8. Therefore, the mounting frame 12 is not cantilevered and reliably supports the load. 67 is a damper for vertically adjusting the driver's seat 8, and 68 is an operation lever.

[0012]

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. 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 above the engine 20 behind the driver's seat 8. An air cleaner 40 having an intake port 41 opened is provided in the box 33, and the air passing through the dustproof body 45 on the outer surface of the engine cover 44 flows into the intake box 33 through the duct 43. Is always purified and supplies this air to the engine 20 via the air cleaner 40. Therefore,
The intake efficiency of the air cleaner 40 is improved, and the engine 20
Improve the combustion efficiency of. Further, since the air cleaner 40 draws in clean air in the intake box 33, it prevents clogging of dust and the like and improves durability.

Since the air cleaner 40 is shielded from the heat radiation from the engine 20 by the intake box 33, the temperature of the air cleaner 40 itself is prevented from becoming high. Further, the intake box 33 is always filled with fresh and cold outside air which is shielded from the heat radiation of the engine 20 by the suction action of the air cleaner 40, so that the temperature inside the intake box 33 does not rise. Further, since air is sucked into the intake box 33 to generate wind, the air cleaner 40 is cooled by this wind. Therefore, the air cleaner 40
Since the temperature of the air supplied from the engine to the engine 20 becomes lower than usual, the combustion efficiency of the engine 20 is further improved.
Then, the air intake port 41 of the air cleaner 40 is opened into the air intake box 33 that is substantially hermetically closed, and the air intake box 3 is closed.
3 is communicated with the outside air passing through the dustproof body 45 on the outer surface of the engine cover 44 by the duct 43.
3 and the air inlet 41 of the air cleaner 40 do not need to be connected by a hose or the like, which contributes to a simple structure, a light weight, and a cost reduction.

When the dustproof body 45 is provided in the duct 43, the structure is simplified and the engine cover 44 which does not require the dustproof body 45 can be shared, which contributes to cost reduction. Then, after passing through the inside of the intake box 33 through the duct 43, the air is taken in through the intake port 41.
The numeral 3 serves as an air chamber to reduce the wave motion and prevent the generation of noise when inhaling. That is, without providing a noise prevention device or the like between the intake port 41 and the air cleaner 40,
By providing the air cleaner 40 in the intake box 33, noise can be prevented, which contributes to reduction in weight and cost. Further, since no noise prevention device or the like is provided, it is also possible to avoid lowering the intake efficiency of the air cleaner 40. As described above, fresh air having a low temperature always flows into the intake box 33, so that it is possible to provide some or all of electrical components such as the controller box 51, the relay 52, and the fuse box 54. become. That is, since the intake box 33 forms a closed space, the controller box 51, the relay 52, the fuse box 54
Prevents electrical components such as dust from being contaminated with dust (cleaning action),
Prevents temperature rise (cooling action) and improves durability. Therefore, the operation such as control can be surely performed, and the work is surely performed.

In this case, the electrical components such as the controller box 51, the relay 52, and the fuse box 54 are attached by the air cleaner stay 46, the controller stay 50, the fuse box stay 53, etc., and the air cleaner stay 46 and the controller stay 50 are attached. Since the fuse box stay 53 is arranged so as to also serve as the reinforcing frame of the intake box 33, the intake box 3
3 does not require a special frame, the intake box 33
And a bottom plate 35, a front plate 36, a rear plate 37, an inner side plate 38, an outer side plate 39, an air cleaner stay 46, an air cleaner 40, a controller stay 50, a fuse box stay 53, etc. It can be configured as a competing strength member, and strength can be secured. Further, since the intake box 33 is provided between the vertical support frame 18 and the engine rear frame 31 and the rear frame 56 of the cabin 55, the intake box 33 is configured as a part of the frame of the cabin 55, and the frame is simple. And contribute to weight reduction (Figs. 1 and 9).

The side surfaces of the engine 20 and the air cleaner 40 are surrounded by the engine cover 44, and the engine cover 44 is mounted on the mounting frame 12 to which the driver's seat 8 is mounted, and the mounting frame 12 is the body frame 1.
Since the seat mounting member 19 is rotatably attached to the vertical support frame 18 provided in the engine cover 44, not only can the engine cover 44 rotate outward together with the driver's seat 8 to open the upper and front portions of the engine 20. Since the side surface of the air cleaner 40 is also opened, maintenance is facilitated. in this case,
The main body of the air cleaner 40 is a stay 46 for the air cleaner.
The outer side portion of the air cleaner 40 is exposed outside the outer side plate 39 of the intake box 33, and a detachable (openable / closable) lid 48 is provided on the exposed portion. Air cleaner 4 in 48
No. 0 is provided with an air cleaner element. Therefore, when the engine cover 44 is opened, the lid 48 can be opened immediately, and the lid 48 is opened to replace the air cleaner element. The top plate 57 is provided on the top plate 34 so that it can be opened and closed, and the rear cover 58 is provided on the rear plate 37 so that it can be opened and closed. Therefore, when the upper cover 57 and the rear cover 58 are opened, the controller box 5 is opened.
1. Maintenance such as inspection, repair and replacement of electric components such as 1, the relay 52 and the fuse box 54 can be easily performed. Particularly, when the upper cover 57 is opened, it is possible from the driver's seat 8 side. Then, the engine cover 44 and the engine 20
A radiator 21 is arranged between them, and the radiator 21 is rotatably attached to the vertical support frame 18 by radiator attachment members 24, 24. Therefore, after rotating the engine cover 44, the radiator 21 is rotated. And the engine 20
Open the side of. Therefore, not only maintenance of the engine 20 but also maintenance of the radiator 21 is facilitated.

[0017]

According to the present invention, an airframe 1 having a traveling device 3 is provided.
Is provided to support the engine 20, and an intake box 33 is provided above the engine 20 except for a duct 43 that allows air to pass through a dustproof body 45, and the intake box 33 has one end inside the intake box 33. Since the working vehicle is characterized in that the air cleaner 40 having the other end communicating with the engine 20 is provided, and the electrical equipment such as the controller box is provided.
Since the clean air in 3 is taken in, the air intake efficiency of the air cleaner 40 can be improved, and the clogging of dust and the like can be prevented to improve the durability of the air cleaner. Further, since the air cleaner 40 is provided in the intake box 33, the heat radiation of the engine 20 is cut off and the temperature of the air supplied to the engine 20 is lowered, so that the combustion efficiency of the engine 20 is improved. In addition, since the air is taken in through the air intake box 33 after passing through the air intake box 33 through the duct 43, the air intake box 33 serves as an air chamber, the wave motion is reduced, and it is possible to prevent noise generation during air intake. In addition, it is possible to reduce the weight and cost of the noise countermeasure. Further, since the air in the intake box 33 is always clean and at a low temperature, the durability of electric components such as the controller box is improved, space can be effectively used, and maintenance is facilitated.

[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 frame and the like of a control unit.

FIG. 3 is a rear view of the intake box, the engine, and the engine cover.

FIG. 4 is a plan view of the periphery of the air cleaner.

FIG. 5 is a front view of a control unit frame.

FIG. 6 is a side view of an intake box, an engine, an engine cover and the like.

FIG. 7 is a rear view of the intake box.

FIG. 8 is a partially enlarged rear view of the intake box.

FIG. 9 is a side view of the frame.

FIG. 10 is a perspective view of another embodiment of the intake box.

FIG. 11 is a plan view showing a state where an engine cover and the like are rotated.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Body frame, 2 ... Crawler, 3 ... Traveling device, 4 ...
Threshing device, 5 ... Glen tank, 6 ... Control section, 7 ... Step, 8 ... Driving seat, 9 ... Operation box, 10 ... Entrance / exit,
12 ... Mounting frame, 13 is upper horizontal frame, 14 is upper 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 ... Steering unit frame, 30
… Side frame, 31… Engine rear frame, 32…
Vertical frame rod, 33 ... Intake box, 34 ... Top plate, 35
... bottom plate, 36 ... front plate, 37 ... rear plate, 38 ... inner side plate, 3
9 ... Outer side plate, 40 ... Air cleaner, 41 ... Intake port,
42 ... Air supply port, 43 ... Duct, 44 ... Engine cover, 45 ... Dustproof body, 46 ... Air cleaner stay, 48
... Lid, 50 ... Controller stay, 51 ... Controller box, 52 ... Relay, 53 ... Fuse box stay, 54 ... Fuse box, 56 ... Rear frame, 57 ... Top cover, 58 ... Rear cover, 59 ... Elastic body , 60 ... Plate support member, 61 ... Mounting member, 62 ... Shaft 6
2, 63 ... Engaging hooks, 64 ... Engaging rods, 65 ... Lock operating levers, 66 ... Supporting rods.

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[Procedure amendment]

[Submission date] January 19, 1996

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

[Fig. 2]

[Figure 3]

FIG. 4

[Figure 5]

FIG. 6

FIG. 7

[Figure 8]

FIG. 9

FIG. 10

FIG. 11

Claims (1)

[Claims] 1. An intake box 33, which is provided to support an engine 20 on a machine body frame 1 having a traveling device 3 and whose periphery is closed except for a duct 43 through which air is passed through a dustproof body 45. The intake box 3
3 is provided with an air cleaner 40 having one end communicating with the duct 43 and the other end communicating with the engine 20.
A work vehicle provided with electrical components such as a controller box.