JP3648894B2 - Work vehicle intake system - Google Patents

Description

[0001]
[Industrial application fields]
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]
[Prior art]
Although not conventionally known, in Japanese Patent Application No. 7-308238 filed earlier by the same applicant, an engine is supported on a body frame having a traveling device, and air is passed through the dust-proof body above the engine. An air intake box that is closed except for the duct is provided, an air cleaner having one end communicating with the duct and the other end communicating with the engine is provided in the air intake box, and electrical components such as a controller box are provided. A feature work vehicle configuration has been proposed.
[0003]
[Problems to be solved by the invention]
The prior art has a problem that it is not devised for air cleaner maintenance and noise reduction during intake.
[0004]
OBJECT OF THE INVENTION
Simplifies maintenance of air cleaners, improves air cleaner durability, and prevents air cleaner noise.
[0005]
[Means for Solving the Problems]
The present invention comprises an engine cover (49) having a driver's seat (8) and a dustproof body and covering the engine (20), and a vertical support frame on the body frame (1) on the right rear portion of the engine (20). (18) is provided upright, and the vertical support frame (18) is provided with a seat mounting member (19) having a longitudinal axis, and the driver seat (8) with the seat mounting member (19) as an axis. And a dustproof body and an engine cover (49) are provided so as to be pivotable outward of the machine body, and a radiator (21) is provided between the dustproof body and the engine (20), and the vertical support frame (18) A radiator mounting member (24) having a longitudinal axis is provided, and the radiator (21) is configured to be rotatable outwardly of the fuselage with the radiator mounting member (24) as an axis, and the rear side of the driver seat (8). An intake box above the engine (20) In providing (33), the intake box (33) is constituted by a closed space having no opening, and an air cleaner (43) for supplying air to the engine (20) and an air cleaner (33) are provided in the intake box (33). 43) a silencer (40) is provided on the upstream side of the intake system path so that clean air that has passed through the outside air intake (50) of the engine cover (49) enters the intake port (54) of the silencer (40). Further, the engine cover (49) is moved and the intake system path of the engine cover (49) and the intake port (54) of the silencer (40) are connected and disconnected. It is a work vehicle .
[0006]
【Example】
An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a machine body frame of a work 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 body frame 1, a threshing device 4 is provided on one side above the traveling device 3, and threshing is performed on the side of the threshing device 4 by the threshing device 4. A grain tank 5 for storing the finished grain is provided, and a control unit 6 is provided on the front side of the grain tank 5. The control unit 6 includes a step 7 where an operator stands, a driver seat 8 on which the operator is seated, an operation box 9 having switches and levers provided on the front side of the driver seat 8, and the like. Reference numeral 10 denotes an entrance for getting on and off at step 7.
The driver seat 8 is attached to the attachment frame 12. The mounting frame 12 is formed in an inverted L shape in plan view by connecting the front ends of the upper front and rear frames 14 to the outer ends of the upper horizontal frame 13, and the upper ends of the side vertical frames 15 at the rear ends of the upper front and rear frames 14. The rear ends of the side front and rear frames 16 in the front and rear direction are connected to the lower portion of the side vertical frame 15. The body frame 1 on the front entrance / exit 10 side of the Glen tank 5 is provided with a lower portion of a vertical support frame 18, and the mounting frame 12 is rotatably attached to the vertical support frame 18 by seat mounting members 19 and 19.
[0007]
An engine 20 is provided below the driver seat 8, and a radiator 21 is disposed on the entrance / exit 10 side of the engine 20. The radiator 21 is attached to the radiator frame 22, and the rear vertical frame 23 of the radiator frame 22 is rotatably attached to the vertical support frame 18 by radiator attachment members 24 and 24.
Thus, the operation box frame 27 of the operation box 9 is provided at the front side portion of the machine 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. 20 is fixed to an engine rear frame 31 provided on the rear side, and the vertical support frame 18 and the vertical frame rod 32 are fixed to the engine rear frame 31.
Thus, an intake box 33 is provided behind the driver seat 8 and above the engine 20. The intake box 33 is formed in a box shape that forms a closed space without an opening, and is 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 in the embodiment.
[0008]
A silencer 40 is provided in the intake box 33. The silencer 40 is fixed to the bottom plate 35 of the intake box 33, and the intake port 44 of the air cleaner 43 is connected to the outside air supply port 41 of the silencer 40 via the connection member 42, and the air supply port 45 of the air cleaner 43 and the engine 20 are connected. Are connected by a 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. When the lid 48 is opened, an air cleaner element ( It is configured to be replaceable (not shown). Further, as viewed from the side, the air cleaner 43 is arranged behind the engine 20 so that most of the air cleaner 43 overlaps with the radiator 21. Although not shown, a controller stay is provided in the intake box 33, and the controller stay is provided with electrical components such as a controller box, relays of various devices, and 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 outside 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, for example, is provided. Further, the engine cover 49 on the side of the radiator 21 is provided with a partition plate 51 constituted by a net, a perforated plate or the like, and an air passage for the radiator fan 52 is secured.
[0009]
The engine cover 49 is provided with a duct 53 protruding inward, and the duct 53 is fitted into the silencer inlet 54 of the silencer 40. That is, since the intake box 33 is formed in 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 is provided. A duct 53 is inserted from a portion (not shown) and fitted into the silencer inlet 54. The duct 53 is not an indispensable requirement, and the silencer inlet 54 provided in the silencer 40 may protrude from the outer side plate 39 and be opened in the engine cover 49.
Therefore, the engine cover 49 sucks outside air from the outside air intake 50 and supplies the sucked outside air to the engine 20 via the silencer 40 and the air cleaner 43. Therefore, the engine cover 49 has intake air for supplying outside air to the engine 20. A path is formed. Therefore, only 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 fixedly mounted on the mounting frame 12, and the engine cover 49 is rotated outwardly about the seat mounting member 19 together with the driver seat 8 and the mounting frame 12. Therefore, the engine cover 49 and the driver seat 8 rotate outward and rearward, and following the engine cover 49, the radiator 21 also independently rotates outward and rearward in the same direction.
[0010]
The engine cover 49 is configured such that the connection between the intake system path of the engine cover 49 and the silencer inlet 54 of the silencer 40 is brought into and out of contact with the movement of the cover 49. In the embodiment, the engine cover 49 is so-called vertical axis rotation about the seat mounting member 19, but the so-called horizontal axis (axial direction parallel to the aircraft traveling direction) rotation causes the engine cover 49 to be connected to the intake system path. The silencer 40 of the silencer 40 may be brought into contact with or separated from the silencer inlet 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 connection member 42, and the separated portion is connected and disconnected by the rotation of the engine cover 49. Reference numeral 57 denotes a sealing member having elasticity such as a so-called O-ring provided in the separation portion, 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 disposed so as not to interfere with the radiator 21 when moving, and is separated from the portions 45 and the connecting member 46. 45 and the connection part 46 are configured in the same manner as the connection part between the outside air supply port 41 and the connection member 42, and the separation part is connected and disconnected by the rotation of the engine cover 49. A seal member 57 is provided at the connection portion. Further, in order to move the silencer 40 and the air cleaner 43, the bottom plate 35 and the outer side plate 39 of the intake box 33 are omitted in the embodiment, and the engine cover 49 side and the engine 20 side are opened. Instead, it is also possible to provide the bottom plate 35 and an openable / closable opening so that the intake box 33 has a closed structure.
[0011]
Accordingly, the engine cover 49 on the side of the driver seat 8 is provided with an opening 58 provided with a dustproof body such as a net, and ventilation and cooling around the driver seat 8 are performed by air passing through the opening 58. Is what you expect. An opening 59 is provided with the duct 53 provided in the engine cover 49.
60 is a plate support member provided at the inner end of the upper horizontal frame 13 of the mounting frame 12, 61 is an engagement hook, 62 is an engagement rod provided on the side frame 30, and 63 is a lock operation lever. The engagement hook 61 is rotated downward by the operation lever 63 to release the lock, and the engine cover 49 is rotated.
Thus, the roller 65 is provided at the lower end of the engine cover 49, the auxiliary step 64 is provided below the roller 65, and when the engine cover 49 is rotated outward, the roller 65 rolls on the upper surface of the auxiliary step 66. The engine cover 49 is supported. The auxiliary step 66 is urged by the spring 67 so as to be always stood up. When the engine cover 49 is opened, the auxiliary step 66 is also rotated to a substantially horizontal position and does not hinder the outside movement of the engine cover 49. Evacuate as follows.
[0012]
And the auxiliary | assistant step 66 of an Example is provided in the side part of the storage hopper provided in the side part of the threshing apparatus 4 instead of the grain tank, and is a step used at the time of the operation | work which bags the grain in the storage hopper etc. Is also used. 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 the rotation of the engine cover 49 Of course, it is possible to make the state of use irrelevant, and although not shown, an operation mechanism for holding the state of use against the spring 67 is provided.
68 is a cutting part, 69 is a weeding body, 70 is a pulling device, 71 is a conveying device, 72 is a cutting blade, 73 is a grain supply and conveying device, 74 is a grain discharge auger, and 75 is a cover.
[0013]
Next, the operation of the embodiment will be described.
The user sits on the driver's seat 8, starts the engine 20, and travels 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. A silencer 40 is provided in the box 33, and the engine 20 is connected to the silencer 40 via an air cleaner 43, and the silencer intake port 54 of the silencer 40 is connected to the intake system passage of the engine cover 49. The air that has passed through the outside air intake 50 of 49 flows into the engine 20 through 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.
In addition, since 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 passes through the silencer 40, thereby preventing clogging.
[0014]
Further, since the connection member 42 that connects the silencer 40 and the air cleaner 43 is provided in the intake box 33, the clean air outside the engine cover 49 is supplied as it is to the air supplied to the engine 20. Therefore, it improves combustion efficiency and contributes to output and durability.
Although the silencer 40 can be configured arbitrarily, even if it is made of synthetic resin, the silencer 40 is provided in the intake box 33, so that it is prevented from being damaged by an external impact, and durability is improved.
Thus, the engine 20, the silencer 40, and the air cleaner 43 are surrounded on the side surfaces by the engine cover 49, and the engine cover 49 is configured to be pivotable outwardly around the seat mounting member 19 of the vertical support frame 18. Since the air cleaner 43 and the side surface of the engine 20 are opened, maintenance is facilitated.
[0015]
In this case, a removable lid 48 is provided on the exposed portion of the outer side of the air cleaner 43, and an air cleaner element is provided in the air cleaner 43 in the lid 48, so that the engine cover 49 is opened. Then, the lid 48 can be opened immediately, and the lid 48 is opened to replace the air cleaner element.
Further, since the intake system 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, it is not necessary to perform connection work each 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 to each other, the duct 53 is connected to and disconnected from the silencer intake port 54 by the rotation of the engine cover 49, thereby improving operability and workability. To improve.
The engine cover 49 is specifically attached to the attachment frame 12 to which the driver's seat 8 is attached, and the attachment frame 12 is attached to the vertical support frame 18 provided in the body frame 1 by the seat attachment member 19 so as to be rotatable. Therefore, when the engine cover 49 is rotated outward, the driver seat 8 is also rotated outward, so that the upper part and the periphery of the front part of the engine 20 can be opened, thereby facilitating maintenance.
[0016]
Since the silencer 40 is disposed at the uppermost position, the air cleaner 43 is disposed below the silencer 40, and the engine 20 is provided below the air cleaner 43, the silencer 40, the air cleaner 43, and the engine 20 are connected. It can be connected in the shortest distance, improving the inlet rate.
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 reduced, and the output of the engine 20 is improved.
Thus, the radiator 21 is disposed between the engine cover 49 and the engine 20, and the air cleaner 43 is disposed on the back side of the radiator 21, so that most of the air cleaner 43 is overlapped with the radiator 21 in a side view. It can be arranged in such a way that the vertical height of the fuselage is lowered by making effective use of space.
In this case, not only the engine cover 49 but also the radiator 21 rotates outwardly around the radiator mounting members 24 and 24 of the vertical support frame 18. Therefore, after the engine cover 49 is rotated, the radiator 21 is rotated. Then, the side of the engine 20 and the periphery of the air cleaner 43 are opened, and not only the maintenance of the engine 20 and the radiator 21 but also the maintenance of the air cleaner 43 described above becomes easy, and the workability of the maintenance is not sacrificed. With this, space can be used effectively.
[0017]
In the second embodiment of FIG. 7, the silencer 40 is fixed to the engine cover 49 side and rotates outward together with the engine cover 49, so that the maintenance of the silencer 40 is facilitated. Further, in the third embodiment of FIG. 9, 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 maintenance of the silencer 40 and the air cleaner 43 is maintained. Becomes easier. In addition, the connection portion between the outside air supply port 41 and the connection member 42 and the connection portion between the third embodiment 45 and the connection member 46 of the second embodiment are connected and disconnected by the rotation of the engine cover 49. Therefore, it is not necessary to perform connection work each time the engine cover 49 is opened and closed, and operability and workability are improved.
Since the engine cover 49 on the side of the driver seat 8 is provided with the opening 58 provided with a dustproof body such as a net, the air around the driver seat 8 is ventilated by the air passing through the opening 58. Cooling action can be expected, and the outside of the engine cover 49 generates a lot of dust, and the outside air intake 50 is likely to be clogged. However, since the outside air is taken in from the opening 58, the intake efficiency is reduced, and the radiator 21 Prevents cooling efficiency from decreasing. That is, since the partition plate 51 acts so that air is sucked by the radiator fan 52, if the outside air intake 50 side is clogged, the intake efficiency and the cooling efficiency of the radiator 21 are reduced, but this is prevented.
[0018]
Accordingly, when the engine cover 49 is rotated, the roller 65 is provided at the lower end of the engine cover 49 and 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 cover 49 is rotated, the roller 65 rolls on the auxiliary step 66 to make the rotation smooth, and the weight of the engine cover 49 can be supported by the auxiliary step 66.
[0019]
【effect】
The present invention comprises an engine cover (49) having a driver's seat (8) and a dustproof body and covering the engine (20), and a vertical support frame on the body frame (1) on the right rear portion of the engine (20). (18) is provided upright, and the vertical support frame (18) is provided with a seat mounting member (19) having a longitudinal axis, and the driver seat (8) with the seat mounting member (19) as an axis. And a dustproof body and an engine cover (49) are provided so as to be pivotable outward of the machine body, and a radiator (21) is provided between the dustproof body and the engine (20), and the vertical support frame (18) A radiator mounting member (24) having a longitudinal axis is provided, and the radiator (21) is configured to be rotatable outwardly of the fuselage with the radiator mounting member (24) as an axis, and the rear side of the driver seat (8). An intake box above the engine (20) In providing (33), the intake box (33) is constituted by a closed space having no opening, and an air cleaner (43) for supplying air to the engine (20) and an air cleaner (33) are provided in the intake box (33). 43) a silencer (40) is provided on the upstream side of the intake system path so that clean air that has passed through the outside air intake (50) of the engine cover (49) enters the intake port (54) of the silencer (40). Further, the engine cover (49) is moved and the intake system path of the engine cover (49) and the intake port (54) of the silencer (40) are connected and disconnected. since it is obtained by a working vehicle, improves the intake efficiency of the air cleaner (43) so that the intake clean outside air from the intake system passage of the engine cover (49), dust It is possible to improve the durability of the air cleaner by preventing clogging of the air, and since the silencer (40) is provided, it is possible to prevent noise generation when inhaling, and the engine cover (49) is moved outward. By moving it, there is an effect that maintenance can be facilitated.
Further, since the driver seat (8), the dustproof body, the engine cover (49), and the seat mounting member (19) rotate around the same vertical support frame (18), they are separate from each other. A member becomes unnecessary, cost can be reduced, and space utilization can be improved. Furthermore, since the radiator (21) also rotates while sharing the vertical support frame (18), a separate member becomes unnecessary, cost can be reduced, and space utilization can be improved.
[Brief description of the drawings]
FIG. 1 is a side view of a work vehicle (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 front elevational view of the same part.
FIG. 6 is a plan view of an engine cover moving state.
FIG. 7 is a partially longitudinal front view of the second embodiment.
FIG. 8 is a front view of a connecting portion of a second embodiment and a third embodiment.
FIG. 9 is a partially longitudinal front view of a third embodiment.
FIG. 10 is a perspective view of an engine cover.
FIG. 11 is a plan view of a work vehicle (combine).
FIG. 12 is a front view of an engine cover.
FIG. 13 is a front view in which a part of the engine cover is omitted.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Airframe frame, 2 ... Crawler, 3 ... Traveling device, 4 ... Threshing device, 5 ... Glen tank (storage hopper), 6 ... Control part, 7 ... Step, 8 ... Driver's seat, 9 ... Operation box, 10 ... Getting on / off Mouth, 12 ... Mounting frame, 13 ... Upper horizontal frame, 14 ... Upper front and 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 part frame, 30 ... Side frame, 31 ... Engine rear frame, 32 ... Frame cage 33 ... Air intake box 34 ... Top plate 35 ... Bottom plate 36 ... Front plate 37 ... Rear plate 38 ... Inner side plate 39 ... Outer side plate 40 ... Silencer 41 ... Outside air supply port, DESCRIPTION OF SYMBOLS 2 ... Connection member, 43 ... Air cleaner, 44 ... Air inlet, 45 ... Air supply port, 46 ... Connection member, 47 ... Stay for air cleaner, 48 ... Cover, 49 ... Engine cover, 50 ... Outside air intake part, 51 ... Partition Plate, 52 ... Radiator fan, 53 ... Duct, 54 ... Silencer air inlet, 57 ... Seal member, 58 ... Opening, 59 ... Opening, 60 ... Plate support member, 61 ... Engagement hook, 62 ... Engagement rod, DESCRIPTION OF SYMBOLS 63 ... Lock operation lever, 65 ... Roller, 66 ... Auxiliary step, 67 ... Spring, 68 ... Cutting part, 69 ... Weeding body, 70 ... Pulling device, 71 ... Conveying device, 72 ... Cutting blade, 73 ... Grain supply conveyance Equipment, 74 ... grain discharge auger, 75 ... cover.

Claims (1)

An engine cover (49) having a driver's seat (8) and a dustproof body and covering the engine (20) is configured, and a vertical support frame (18) is mounted on a body frame (1) on the right rear portion of the engine (20). The vertical support frame (18) is provided with a seat mounting member (19) having a longitudinal axis, and the driver seat (8) and a dustproof body with the seat mounting member (19) as an axis. An engine cover (49) is rotatably provided on the outer side of the machine body. Further, a radiator (21) is provided between the dustproof body and the engine (20), and the vertical support frame (18) has a longitudinal axis. The radiator mounting member (24) is provided, and the radiator (21) is configured to be pivotable outward from the fuselage with the radiator mounting member (24) as an axis, and the rear side of the driver seat (8) The intake box (33) above the engine (20) In the installation, the intake box (33) is constituted by a closed space without an opening, and an air cleaner (43) for supplying air to the engine (20) in the intake box (33) and an intake air of the air cleaner (43). A silencer (40) is provided on the upstream side of the system, and clean air that has passed through the outside air intake (50) of the engine cover (49) enters the inlet (54) of the silencer (40). Further, the working vehicle is configured so that the intake system passage of the engine cover (49) and the intake port (54) of the silencer (40) are connected and disconnected by the movement of the engine cover (49) .

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