JP5433641B2 - Combine - Google Patents

Description

  The present invention relates to a combine equipped with an engine bonnet that can move between an open state and a closed state.

Conventionally, as a working machine provided with an engine bonnet that can swing freely, there has been one described in Patent Document 1, for example.
Patent document 1 describes a combine. In this combine, the engine bonnet is supported so as to be swingable around the operating unit opening axis, and is in a closed state positioned above the body frame of the self-propelled aircraft and an open state positioned outside the self-propelled aircraft. Switch.

JP 2007-37460 A

In an engine bonnet that can be swingably opened and closed, an engine air cleaner (hereinafter abbreviated as “air cleaner”) may be disposed outside the engine bonnet to support the air cleaner on the engine bonnet.
In this case, if the engine bonnet can be opened by removing the intake pipe that communicates between the air cleaner and the engine on the air cleaner side or the engine side, it is bothersome to remove the intake pipe when performing inspection and repair work inside the engine bonnet. It takes time and effort.
On the other hand, if an intake pipe equipped with an expansion / contraction mechanism such as a bellows is used so that the engine bonnet can be opened while the intake pipe is connected to the engine and the air cleaner, the structure of the intake pipe support is complicated. Become.
That is, since the intake pipe is provided with an expansion / contraction mechanism, it has the property of being easily bent and shaken. For this reason, it is necessary to support the intake pipe accurately and at many places so as to prevent the intake pipe from coming into contact with a device such as an engine in the engine bonnet due to bending or shaking caused by vibration. .

  An object of the present invention is to provide a working machine that can be easily obtained from a surface such as an intake pipe support while the engine bonnet can be opened without requiring removal of the intake pipe.

The first invention is a combine that includes a driver's seat and an engine bonnet that can move between an open state and a closed state, and is freely rotatable via a connecting member to a support frame fixed to the body frame. The roller is in contact with the guide rail portion formed in an arc shape while rolling to support the engine bonnet with the roller and the guide rail portion. The engine bonnet is configured to swing open and close ,
The top plate part of the engine bonnet to which the driver seat is attached is supported by the roller and the guide rail part,
A support portion that supports the engine bonnet when the engine bonnet is in an open state is provided on the body frame at a position below the top plate portion.

  According to the second aspect of the present invention, when the engine bonnet is at least closed, the guide rail portion is positioned below the engine bonnet.

In the third aspect of the invention, when the engine bonnet is in a closed state, the guide rail portion is located above the engine.
In the fourth invention, the roller and the guide rail portion support the engine bonnet below the driver seat .
According to the fifth aspect of the invention, the engine bonnet is configured to be swingable and openable around an opening / closing axis center of the machine body.
In the sixth aspect of the invention, the support frame is disposed behind the engine, and the opening / closing axis is provided on the support frame.
In the seventh aspect of the invention, a driving cabin surrounding the driver seat is connected to the engine bonnet so as to be swingable integrally.

Overall side view of work equipment Overall plan view of work equipment Top view of the work equipment with the engine hood open Side view of the prime mover (A) is a perspective view in the normal state of an engine bonnet, (b) is a perspective view at the time of opening operation of an engine bonnet Plan view of the engine bonnet and operating part structure in the open state Longitudinal side view of the prime mover Front view of the self-propelled aircraft support part installation site Rear view of prime mover Longitudinal rear view of intake case Cross-sectional plan view of the intake case Longitudinal section of engine bonnet support structure (A) is a plan view of the engine bonnet and the operating unit structure in the closed state, (b) is a plan view of the engine bonnet and the operating unit structure in the middle of opening, and (c) is the engine bonnet and the operating unit. Plan view with structure open

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an overall side view of a working machine according to an embodiment of the present invention. FIG. 2 is an overall plan view of the working machine according to the embodiment of the present invention. As shown in these drawings, the working machine according to the embodiment of the present invention is configured to be self-propelled by the crawler traveling device 1, and is provided with a driving unit 10 equipped with an engine 11 and an operation cabin 21. A self-propelled machine body having a driving unit 20 and a cutting unit 30 connected to the front part of the body frame 2 of the self-propelled machine body, and arranged side by side in the lateral direction of the machine body frame 2 A threshing device 3 and a grain tank 4 are provided.

This machine performs harvesting operations such as rice and wheat.
That is, the self-propelled airframe includes a transmission case 5 that is disposed on the lateral side of the driving unit 20 and supported by the airframe frame 2, and the output of the engine 11 is transmitted to the crawler via the transmission case 5. This is transmitted to the traveling device 1 and the cutting unit 30.

  The mowing unit 30 is arranged in the horizontal direction in the front of the mowing unit 30 by swinging the mowing unit frame 31 up and down with respect to the machine frame 2 by a hydraulic cylinder (not shown). The lifting tool 32 is moved up and down into a descending working state in which the weeding tool 32 is lowered near the ground, and an ascending non-working state in which the weeding tool 32 is raised from the ground. When the cutting unit 30 is in the descending work state and the self-propelled machine is run, the cutting unit 30 introduces the planted culm to be cut into the corresponding pulling device 33 by the above-mentioned weeding tools 32 and causes the processing to occur. Then, the planted culm that is raised and processed by each pulling device 33 is cut by the clipper-shaped reaping device 34, and the chopped cereal is conveyed backward by the conveying device 35 to the threshing device 3. Supply. The threshing device 3 supplies the tip side of the harvested cereal cocoon to the handling room (not shown) while holding and conveying the stock side of the chopped cereal to the rear side of the machine body by a threshing feed chain (not shown). Threshing process. The said grain tank 4 collect | recovers and stores the threshing grain conveyed from the threshing apparatus 3, and carries out the stored threshing grain by the carrying-out apparatus 6 which consists of a screw conveyor.

  FIG. 4 is a side view of the driving unit 10. FIG. 7 is a longitudinal side view of the driving section 10. FIG. 9 is a rear view of the prime mover 10. As shown in these drawings, the prime mover 10 includes the engine 11, a radiator 12 for cooling the engine disposed laterally outside the fuselage of the engine 11, the engine 11, and the radiator. 12 is provided with an engine bonnet 13 that covers 12 and an intake case 14 that is connected to the upper part of the engine bonnet 13 on the rear side of the machine body.

  The radiator 12 is attached to the end of the support frame 40 fixed to the body frame 2 on the laterally outer side of the body via a radiator frame 41. The radiator 12 is supplied with cooling air by a cooling fan 15 that is rotationally driven by the engine 11.

  In other words, the cooling fan 15 sucks forward of the radiator via the radiator 12 and draws air outside the engine bonnet from the intake port 13b provided in the lateral wall portion 13a located in front of the radiator of the engine bonnet 13 to the engine in front of the radiator. Cooling air is generated by suction into the hood space, and this cooling air is supplied to the radiator 12. The cooling fan 15 further sucks the inside of the intake case 14 through the space inside the engine bonnet, and draws air outside the intake case from the intake port 14b provided in the lateral wall portion 14a of the intake case 14. Cooling air is generated by sucking the air into the engine bonnet, and the cooling air is introduced into the space inside the engine bonnet in front of the radiator, merged with the cooling air from the intake port 13b, and supplied to the radiator 12.

  FIG. 5A is a perspective view of the engine bonnet 13 in a normal state. As shown in FIGS. 7 and 9, the engine bonnet 13 includes the lateral wall portion 13 a, a rear plate portion 13 c located on the rear side of the engine 11 and the radiator 12, and the engine 11 and radiator. 12 includes a front plate portion 13d located on the front side of the fuselage and a top plate portion 13e located on the upper side of the fuselage of the engine 11 and the radiator 12, and is directed inward in the lateral direction of the fuselage and downward in the fuselage. The engine room is open.

As shown in FIGS. 7, 9, and 10, the engine bonnet 13 is a cylindrical attachment body 42 (hereinafter, abbreviated as an attachment body 42) connected to an inner end portion of the intake case 14 on the rear side of the airframe. It has. The attachment body 42 is rotatably connected to an upper end side of a cylindrical column 43 (hereinafter abbreviated as a column 43) erected on the body frame 2. The support column 43 is also used as a vertical structure of the body located at the inner end of the support frame 40. The column 43 includes a support arm 44 that extends upward from the upper end of the column 43. The extended end portion 44 a of the support arm 44 is rotatably connected to the upper end side of the attachment body 42, and the support column 43 supports the upper end side of the attachment body 42 via the support arm 44. ing.

That is, the engine bonnet 13 is pivotally supported by the support 43 through the attachment body 42 and swings and opens around an opening / closing axis P that is provided in the support 43 in the vertical direction. The intake case 14 swings together with the engine bonnet 13. The strut 43 is located on the inner side in the lateral direction of the vehicle body and on the rear side of the engine hood 13 with respect to the lateral lateral outer edge of the engine hood 13 in the closed state of the engine hood 13.

  As shown in FIGS. 1 and 4, the driving unit 20 includes the driving cabin 21, a driving seat 22 attached to the top surface of the top plate portion 13 e of the engine bonnet 13, and a position in front of the driving seat 22. A control tower 23 to be operated, a driving unit floor 24 positioned between the control tower 23 and the driver's seat 22, and a side wall 25 closing the space between the control tower 23 and the engine bonnet 13 on the side opposite to the entrance / exit. And.

  Hereinafter, the operation unit floor 24, the control tower 23, the lateral wall 25, and the operation cabin 21 are referred to as an operation unit structure 26. The operating part structure 26 is connected to the engine bonnet 13 so as to be swingable integrally.

  FIG. 3 is a plan view of the combine engine bonnet 13 and the operating unit structure 26 in an opened state. FIG. 6 is a plan view of the engine bonnet 13 and the operating unit structure 26 in an open state. As shown in these drawings, when the engine bonnet 13 is swung around the opening / closing axis P toward the outer side of the fuselage and the engine bonnet 13 faces the outer side of the fuselage, the engine bonnet 13 is opened and the engine bonnet 13 is opened. 11 and the radiator 12 are opened for easy inspection and repair. At this time, the operating unit structure 26 swings together with the engine bonnet 13 so that the front window 21a of the operating cabin 21 is in an open state facing the lateral side of the airframe, so that the mission case 5 and its vicinity can be easily inspected and repaired. To open. At this time, the grain tank 4 is placed laterally outside the body around the axis of the vertical screw conveyor 6a of the carry-out device 6 so that the engine bonnet 13 and the operating unit structure 26 can enter the tank space. Keep swinging open.

FIG. 5A is a perspective view when the engine bonnet 13 is opened. As shown in this figure, when operating to open the engine hood 13, remove and front plate portion 13d of the engine hood 13 and a portion 25a of the lateral side walls 25 of the operation portion 20, and the driving unit 20 driving unit floor A part 24 a of 24 is erected, and one opening 27 is formed in the engine bonnet 13, the operation unit floor 24, and the side wall 25 to avoid interference with devices in the engine room.

  FIG. 2 is a plan view of the combine engine bonnet 13 and the operating unit structure 26 in a closed state. As shown in this figure, when the engine bonnet 13 is swung around the opening / closing axis P toward the inside of the airframe, and the engine bonnet 13 faces the front of the airframe, the engine bonnet 13 is closed and the engine 11 and radiator 12 is covered. At this time, the driving unit structure 26 swings together with the engine bonnet 13 so that the front window 21a of the driving cabin 21 is in a closed state facing the front of the machine body and covers the mission case 5 and the vicinity thereof.

  As shown in FIGS. 9, 10, and 11, the engine bonnet 13 is disposed inside one end of the intake case 14 in the lateral direction of the airframe and is supported by the top plate portion 13e (hereinafter referred to as an air cleaner 50 for the engine). , Abbreviated as “Air Cleaner 50”).

  The air cleaner 50 is provided with an inlet 50 a that is open inside the intake case 14. An outlet 50 b of the air cleaner 50 is communicated with the attachment body 42 by an air cleaner side intake pipe 51. The air cleaner side intake pipe 51 is connected to an outlet 50 b of the air cleaner 50 and a connection port 42 a provided in the attachment body 42.

  As shown in FIG. 12, the lower end portion of the attachment body 42 is fitted into a connecting cylinder portion 45 provided at the upper end portion of the support column 43, and the attachment body 42 and the support column 43 are connected to the connection cylinder portion. Communication is established by 45 communication actions.

  The support 43 and the intake portion of the engine 11 are communicated with each other by an engine side intake pipe 52. The engine side intake pipe 52 is connected to a connection port 43 a provided in the support column 43.

  In other words, the air cleaner 50 sucks the air in the intake case from the inlet 50a by the intake action of the engine 11, and after removing the dust from the sucked air, the air cleaner side intake pipe 51, the attachment body 42, and the support column 43 from the outlet 50b. It is supplied as combustion air to the engine 11 via the engine side intake pipe 52.

  The attachment body 42 and the column 43 constitute a rotary joint that rotatably connects the engine side intake pipe 52 and the air cleaner side intake pipe 51, and the engine side intake pipe when the engine bonnet 13 is swingably opened and closed. 52 and the removal of the air cleaner side intake pipe 53 are omitted.

As shown in FIGS. 10 and 11, the intake case 14 includes a plurality of electrical components 55 disposed on the side of the case opposite to the side of the case where the air cleaner 50 is located, and one partition plate 56. Contained.
The electrical component 55 is configured to control electronic control for maintaining the handling depth in the threshing device 3 at a set depth and electronic control for maintaining the cutting height in the cutting unit 30 at a set height.
The partition plate 56 partitions a case internal space where the electrical component 55 is located from a case internal space where the air cleaner 50 is located, and the electrical component 55 is positioned even if dust flows into the case internal space where the air cleaner 50 is accommodated. This prevents the electrical component 55 from adhering to the dust by preventing it from flowing into the case internal space.

  As shown in FIG. 9, the driving section 10 includes a support mechanism 60 provided across the support frame body 40 and the engine bonnet 13. As shown in FIGS. 6, 7, 9, and 10, the support mechanism 60 includes a guide rail portion 61 fixed to the lower surface side of the top plate portion 13 e of the engine bonnet 13 and a rear end side of the support frame body 40. And a support portion 62 fixed to the upper portion of the head.

  The guide rail portion 61 is formed of an arc-shaped rail material centered on the opening / closing axis P in plan view. The support portion 62 is configured by a roller that is supported by the support frame body 40 so as to be freely rotatable via a holder 63, and when the engine bonnet 13 is in a closed state or in an open state. The load on the engine bonnet 13 and the operating unit structure 26 is supported by contacting the end of the guide rail 61 on the side corresponding to the closed state or the open state of the engine bonnet 13. As a result, when the engine bonnet 13 swings from one of the closed state and the open state to the other, the support part 62 abuts on the guide rail part 61 so as to be slidable and operates with the engine bonnet 13. The load with the partial structure 26 is supported.

  That is, the support mechanism 60 opens and closes the engine bonnet 13 by the guide rail portion 61 and the support portion 62 when the engine bonnet 13 and the operating portion structure 26 are moved from one of the closed state and the open state to the other. It is supported at a location farther away from the shaft core P toward the free end side to prevent the engine bonnet 13 from sagging on the free end side, thereby preventing the twisting between the attachment body 42 and the column 43.

  As shown in FIGS. 6, 8, and 13, the self-propelled machine body includes an initial support part 67 provided by fixing a plate body to the front end part of the machine body frame 2 via a column 66, and the body frame 2. A support portion 68 for the second stage provided by fixing a frame body disposed on the outer side of the body from the support portion 67 at the front end portion, and a plate body provided near the rear side of the driving portion 10 of the body frame 2 And a receiving support portion 65 provided.

  FIG. 13A is a plan view of the engine bonnet 13 and the operating unit structure 26 in a closed state. FIG. 13B is a plan view of the engine bonnet 13 and the operating unit structure 26 in the middle of opening. FIG. 13C is a plan view of the engine bonnet 13 and the operating unit structure 26 in an opened state. As shown in these drawings, the self-propelled aircraft supports the operation force necessary for the operation of supporting the operation unit structure 26 in a state where the operation unit structure 26 is positioned between the closed state and the open state. Mitigated by sections 67 and 68.

  That is, at the initial stage when the driving unit structure 26 starts to swing from the closed state to the opened state, the initial site 70 located at the lower part of the lateral wall portion 13a of the driving unit frame becomes the initial support unit 67. The support portion 67 supports the load on the operating portion structure 26 by supporting the initial portion 70. When the driving unit structure 26 further swings toward the open state and the initial portion 70 of the driving unit frame is positioned slightly before the initial support portion 67 is removed, the driving unit floor 24 of the driving unit frame is located. The second-phase portion 71 located on the lower surface side of the second-stage portion 71 rests on the second-phase support portion 68, and the second-phase portion 71 remains in the second phase even after the initial-portion portion 70 is detached from the initial-stage support portion 67. It is placed on the support 68 for the period and is in sliding contact. Thereby, after the operating part structure 26 reaches the swing position where the initial part 70 is located at the terminal part of the initial support part 67, the initial part 70 is removed from the initial support part 67. The second-stage support portion 68 supports the second-phase portion 71 to support the load of the operating portion structure 26 until it reaches the swing position that has moved further toward the open state.

  The self-propelled airframe stably supports the engine bonnet 13 switched to the open state by the receiving support portion 65.

  That is, in the open state of the engine hood 13, the lower end portion 13 f of the lateral wall portion 13 a of the engine hood 13 rides on the receiving support portion 65. Thereby, the receiving support part 65 receives and acts on the lower end part 13 f to support the engine bonnet 13 on the free end side with respect to the support mechanism 60.

[Another Example]
Instead of the engine bonnet 13 described above, the present invention can also be applied to an engine bonnet having a configuration in which the operation unit floor 24 and the operation cabin 21 of the operation unit 20 are not connected. That is, the object of the present invention can be achieved even when the engine bonnet opens and closes alone.

2 body frame 11 engine 13 engine bonnet 13e top plate part 21 driving cabin 22 driving seat 40 support frame 61 guide rail part 62 support part (roller)
63 Holder (connection member)
65 Receiving support part (support part)

Claims (7)

A combine with a driver's seat and an engine bonnet that can move between an open state and a closed state,
A roller that is supported by a support frame fixed to the machine frame so as to be freely rotatable via a connection member;
The roller is in contact with the guide rail portion formed in an arc shape while rolling, so that the engine bonnet swings and opens while supporting the engine bonnet with the roller and the guide rail portion. To configure
The top plate part of the engine bonnet to which the driver seat is attached is supported by the roller and the guide rail part,
A combine in which a support portion that supports the engine bonnet when the engine bonnet is in an open state is provided on the body frame at a position below the top plate portion .   The combine according to claim 1, wherein the guide rail portion is located below the engine bonnet when the engine bonnet is at least closed.   The combine according to claim 1 or 2, wherein the guide rail portion is located above the engine when the engine bonnet is in a closed state.   The combine according to any one of claims 1 to 3, wherein the roller and the guide rail portion support the engine bonnet below the driver seat. The combine according to any one of claims 1 to 4 , wherein the engine bonnet is configured to be swingable openable and closable around an opening / closing axis center of the machine body. The combine according to claim 5 , wherein the support frame is disposed behind the engine, and the opening / closing axis is provided on the support frame. The combine according to any one of claims 1 to 6 , wherein a driving cabin surrounding the driving seat is connected to the engine bonnet so as to be swingable integrally.

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