JP4968446B2 - Combine - Google Patents

Description

  The present invention relates to a combine, and particularly to a transmission mechanism thereof.

2. Description of the Related Art Conventionally, a traveling device in which the rotation of an engine is continuously transmitted through a hydraulic continuously variable transmission and a transmission case and is driven to transmit is provided below the aircraft frame, and the transmission case is disposed in front of the aircraft frame. A cutting part for transmitting rotation synchronized with the traveling speed of the traveling device is provided from the speed change output shaft, and a threshing device for threshing the culm supplied by the corn supply / conveying device is provided above the body frame. The front grain supply / conveyance device arranged in parallel at the front of the grain supply device is configured to receive a driving force from a transmission gear box that branches and transmits the driving force of the engine provided at a predetermined position of the body frame. In the transmission gear box, a configuration in which rotation transmission to the front grain supply / conveyance device is turned on and off is known.
JP 2005-95189 A

In the above-mentioned known example, rotation is branched in three directions by the transmission box of the engine, but the front grain supply / conveying device is linked to the lower transmission side of the cutting part, and the cutting force is cut by the driving force of the engine while traveling is stopped. A mowing clutch (81) is built in the transmission box in order to drive the head and the front side cocoon supply / conveyance device at a constant speed to shave the cocoon at the time of ripening.
Therefore, there is a problem that the transmission structure inside the transmission box becomes complicated and cannot be provided at low cost.
In addition, when opening the mowing part to the outside of the machine body, it is necessary to remove the transmission belt that is hung to the input shaft side of the mowing part, but because of the large number of transmission belts, the mowing part is opened to the outside. There is a drawback that it takes time to perform the operation, and maintenance of the cutting part and the machine body cannot be easily performed.
The present application provides a combine that simplifies the transmission path to the harvesting unit and the front grain supply / conveyance device, can be provided at low cost, and can be easily maintained.

According to the first aspect of the present invention, a traveling device 2 is provided below the body frame 1 and travels while the rotation of the engine 20 is continuously driven through a hydraulic continuously variable transmission 82 and a transmission case 81. 1 is provided with a cutting part 4 to which rotation synchronized with the traveling speed of the traveling device 2 is transmitted from the transmission output shaft 86 of the transmission case 81, and the grain supply / conveying device is disposed above the body frame 1. In a combine provided with a threshing device 3 for threshing the cereal mash supplied by 15 and a front cereal supply transport device 16 arranged in front of the cereal supply transport device 15, an engine is installed at a predetermined position of the machine body frame 1. A transmission gear box 26 for branching and outputting the driving force of 20 is provided, and the sorting unit of the threshing device 3 and the cereal supply / conveyance device from the transmission gear box 26 toward the outside of the machine body The cutting output shaft 40 for driving 5 and the output shaft 54 for front-side supply and conveyance are projected, and the outer side of the cutting input shaft 88 provided in the cutting portion 4 from the input shaft 57 supported by the gear case 60 in front of the threshing device 3 The power is branched and transmitted to the end portion and the front grain supply / conveyance device 16, and a cutting clutch 87 is provided between the shift output shaft 86 and the machine inner end portion of the cutting input shaft 88, and the output shaft 54 is provided. When the cutting clutch 89 is provided between the input shaft 57 and the cutting clutch 87 is turned on, the rotation synchronized with the traveling speed of the traveling device 2 is transmitted to the cutting portion 4, and the picking clutch 89 is turned on. Then, the driving force is transmitted from the output shaft 54 to the input shaft 57, and the driving force is branched and transmitted from the input shaft 57 to the front grain supply / conveying device 16 and the mowing unit 4. age Is intended, when the incoming the reaper clutch 87, the rotation tuned with the traveling speed of the traveling device 2 is transmitted to the reaper 4, when the incoming of the take write clutch 89, the driving force from the output shaft 54 to the input shaft 57 is It is transmitted, and a driving force is branched and transmitted from the input shaft 57 to the front grain supply and transfer device 16 and the cutting unit 4.
The invention of claim 2 is configured such that the cutting part 4 is supported by a support part 65 provided on one side of the front part of the machine body frame 1 so as to be openable to the outside of the machine body. The first belt 84A is wound around the cutting input pulley 85 provided in the section and the cutting output pulley 84 provided in the speed change output shaft 86, and the pulley 56B provided in the input shaft 57 and the machine body outer end of the cutting input shaft 88 The second belt 58A is wound around the intermediate transmission pulley 58 provided for the above, the first belt 84A is removed from the cutting input pulley 85, the second transmission belt 58A is removed from the intermediate transmission pulley 58, and the cutting unit 4 is opened outward from the machine body. It is obtained by the configuration and the combined that, when removing the second belt 58A constituting the first belt 84A and scraping clutch 89 constituting the reaper clutch 87, this to open the reaper 4 to the machine body outward It can be, carry out the maintenance of the harvesting section 4 and the fuselage side.
The invention of claim 3 is a combine in which the transmission gear box 26 is provided with an external device output shaft 61A for driving an external device such as a hydraulic pump, and the external device is connected to the external device output shaft 61A. Then, it is output from the transmission gear box 26 to which the constant rotation from the engine 20 is transmitted via the output shaft 61A for external equipment and is driven.

In the first aspect of the invention, when the cutting clutch 87 is turned on, the rotation synchronized with the traveling speed of the traveling device 2 can be transmitted to the cutting portion 4, and when the take-in clutch 89 is turned on, the input from the output shaft 54 is achieved. Driving force is transmitted to the shaft 57, and the driving force is branched and transmitted from the input shaft 57 to the front grain supply / conveying device 16 and the mowing unit 4, thereby driving the mowing unit 4 and the front side rice cake supply / conveying device 16. Can do.
In the invention of claim 2, in addition to the effect of the invention of claim 1, the first belt 89A constituting the reaping clutch 87 and the second belt 58A constituting the scraping clutch 89 are removed, and the reaping part 4 is mounted on the body. It can be opened to the outside, and maintenance of the cutting unit 4 and the machine body can be easily performed.
In the invention of claim 3, in addition to the effect of the invention of claim 2, the constant rotation can be constantly transmitted from the output shaft 61A for external equipment to the external equipment, and the transmission gear can be operated. The box 26 is also used as an external device, and the transmission path can be shortened to make the entire configuration compact.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. 1 is a combiner body frame, 2 is a traveling device provided below the body frame 1, 3 is a threshing device provided above the body frame 1, and 4 is a threshing device 3. The mowing unit 5 provided on the front side of the throat is a Glen tank provided on the side of the threshing device 3.
As will be described later, the cutting unit 4 is configured to be supported by two struts (supporting units) 65 provided on one side of the front part of the machine body frame 1 so as to be open to the outside of the machine body.
A threshing chamber 6 of the threshing device 3 is provided with a handling cylinder 7 as shown in FIG. 2, a tang 8 is provided below the handling cylinder 7, and grains and foreign substances are winded on the lower side of the tang 8. A wind selection chamber (reference numeral omitted) that can be selected is formed, and a swing selection device (reference numeral omitted) configured by a swing selection shelf 9 that reciprocally swings in the air blowing direction of the red pepper 8 is provided in the wind selection chamber. . Reference numeral 10 denotes a dust removal processing cylinder of the dust removal processing apparatus, 11 denotes a second processing cylinder coaxial with the dust removal processing cylinder 10, 12 denotes a first conveyor, 13 denotes a second conveyor, and 14 denotes a suction dusting fan.

At the side of the threshing chamber 6, a cereal supply and transport device 15 for supplying cereals to the threshing chamber 6 is provided, and is arranged side by side so as to partially overlap the front portion of the cereal supply and transport device 15. (FIG. 3), so that the cereals conveyed from the cutting unit 4 can be taken over smoothly and reliably. Further, at the end of the cereal supply device cereal supply and transport device 15, a scouring and transporting device 17 that transports the threshed sorghum to the slaughter processing unit (cutter device or binding device) is provided.
Thus, reference numeral 20 denotes an engine (FIG. 4). An engine output pulley 22 is provided on the engine output shaft 21 of the engine 20, and a belt 24 is wound around the engine output pulley 22 and an intermediate input pulley 23. A tension pulley 18 that tensions and relaxes the belt 24 is provided to form a threshing clutch.
The intermediate input pulley 23 is fixed to the intermediate input shaft 25, and the intermediate input shaft 25 is mounted on the transmission gear box 26. The transmission gear box 26 is attached to the machine body fixing portion (for example, the front plate of the threshing chamber 6) by an arbitrary attachment member.

The transmission gear box 26 is equipped with a threshing output shaft 27 that outputs rotation to the handling cylinder 7 and the like, and a plurality of gears 28 are engaged between the threshing output shaft 27 and the intermediate input shaft 25, Transmits rotation.
A threshing output pulley 30 is fixed to the threshing output shaft 27, and the threshing output pulley 30 is disposed between a handling cylinder input pulley 31, a dust removal processing cylinder input pulley 32, and a second processing cylinder input pulley 33. The belt 34 is hung around. Reference numeral 35 denotes a gear case provided with a gear 36 for transmitting rotation to the handling cylinder 7, and 37 denotes a rejection input pulley for transmitting rotation to the rejection conveying device 17.
The transmission gear box 26 is separately provided with a sorting output shaft 40, and the sorting output shaft 40 is provided with a sorting output pulley 41. In the sorting output pulley 41, a belt 46 is wound around a swing input pulley 42, a first conveyor input pulley 43, a second conveyor input pulley 44, and a dust exhaust fan input pulley 45. The sorting output shaft 40 is separately provided with a red pepper output pulley 47, and a belt 49 is wound around the red pepper output pulley 47 and the red pepper input pulley 48. In this case, the Karatsu input pulley 48 is a so-called split pulley and shifts the rotation transmitted to the Karatsu 8.

Reference numeral 51 denotes a rear gear case to which a dust exhaust fan input pulley 45 is attached. The rear gear case 51 is provided with a rear drive gear 52 mounted on the cereal supply / conveyor 15 and transmits rotation to the cereal supply / conveyor 15. To do.
The transmission gear box 26 is separately provided with a front supply / conveyance output shaft (output shaft) 54, and the front supply / conveyance output shaft 54 is provided with a front supply / conveyance output pulley 55. A belt 59 is wound around the pulley 55 between the pulley 55 and the front supply / transport input pulley 56A.
A one-way clutch is interposed between the supply / conveyance output shaft 54 and the front-side supply / conveyance output pulley 55 or a front-side supply / conveyance input pulley 56A that is pivotally supported by a gear case 60 described later, which will be described later. The transmission is switched from the drive rotation synchronized with the traveling speed continuously variable by the hydraulic continuously variable transmission 82 from the mission case 81 to the constant drive rotation from the engine 20, so that the culm can be harvested at the end. ing.

That is, the front supply / transport input pulley 56 </ b> A is provided at one end (inner end side) of the front supply / transport input shaft (input shaft) 57 mounted on the gear case 60 provided in front of the threshing device 3. A front supply / conveyor sync input pulley (pulley) 56B is separately provided at the other end of the shaft 57 outside the gear case 60, and the front supply / conveyor sync input pulley 56B is shifted in synchronization with the travel speed of the traveling device 2. The rotation transmitted to the cutting unit 4 is input.
The gear case 60 is provided with a front drive gear 61 of the front grain supply and transfer device 16 and a rotation is transmitted to the front drive gear 61 by a transfer chain (FIG. 4).
Therefore, in the transmission gear box 26 to which the rotation from the engine 20 is inputted, the rotation is branched and transmitted to at least three parts of the handling cylinder 7 and the like, the swing sorting shelf 9 and the like, and the front grain supply and transfer device 16 and the like. Therefore, the transmission mechanism can be configured at a low weight and at a low cost.

The transmission gear box 26 is separately provided with an optional external device output shaft 61A, and an external device such as an air conditioner or a hydraulic pump is driven from the external device output shaft 61A.
That is, since the constant rotation is always transmitted to the external device, it is convenient to output the transmission gear box 26 to the external device from the transmission gear box 26 to which the constant rotation from the engine 20 is transmitted. Thus, the transmission gear box 26 can be used in common, and the entire transmission path can be made compact by shortening the transmission path.
Reference numeral 62 denotes a cutting support frame (FIGS. 5 and 6) that supports the cutting unit 4, 63 denotes a transmission cylinder provided at the base of the cutting support frame 62, and 64 denotes a tip take-up transfer device and a stock takeover transfer provided in the transmission cylinder 63. It is a drive gear of an apparatus (illustration omitted).
Thus, the configuration of opening the mowing unit 4 to the outer side of the machine body is arbitrary, but as an example, a pair of support columns 65 standing substantially vertically are provided in the vicinity of the outer end side of the transmission cylinder 63, Each strut 65 is rotatably attached with a base portion of an arm 66 having a different length, and the tip end of the arm 66 is pivotally attached to the transmission cylinder 63 side.

Therefore, the cutting unit 4 is supported by the two support columns 65 provided on one side of the front part of the body frame 1, and is released to the outside of the body together with the transmission cylinder 63 and the cutting support frame 62.
Thus, the threshing output pulley 30 is provided on the front side of the transmission gear box 26 (FIG. 5), and the transmission gear box is located on the rear side of the belt 34 wound between the threshing output pulley 30 and the barrel input pulley 31. 26 is located.
Therefore, since the transmission gear box 26 is disposed behind the belt 34, the space between the cutting suspension base (not shown) of the cutting unit 4 and the transmission gear box 26 can be widened, although illustration is omitted. The hot air discharge from 20 is improved, and the heat balance is effective.
Accordingly, a threshing clutch (tension clutch pulley) 18 is brought into contact with and separated from the belt 24, the threshing clutch 18 is provided at the tip of the tension arm, and the base of the tension arm is attached to the transmission gear box 26 by a shaft ( FIG. 5).

In this case, the shaft of the base portion of the tension arm supports both the base portion of the shaft and the shaft tip in a so-called both-end supported state by the support portion of the transmission gear box 26.
When the threshing clutch 18 is engaged, the starting torque of the handling cylinder 7 is large, and a shocking large force may be applied to the shaft of the tension arm. Since it is supported in a both-sided state, the load can be dispersed, damage can be prevented, and the weight can be reduced.
Further, by attaching the threshing clutch (pulley) 18 of the belt 24 to the transmission gear box 26, the transmission gear box 26 can also be used as an attachment member, and the arrangement accuracy of the threshing output pulley 30, the barrel input pulley 31, and the threshing clutch 18. And the occurrence of problems such as the belt 24 coming off is prevented.

Thus, the transmission gear box 26 is provided with a lower cylindrical portion 72 projecting to the left (engine 20 side) below the main body case 71 in a front view, and the intermediate input shaft 25 is mounted on the lower cylindrical portion 72 ( FIG. 5). Further, an upper cylindrical portion 73 protruding rightward is provided above the main body case 71, the sorting output shaft 40 is mounted on the upper cylindrical portion 73, and the sorting output pulley 41 is fixed to the sorting output shaft 40. . In addition, a bevel gear 74 that rotates by rotation from the threshing output shaft 27 is mounted at the upper and lower intermediate positions of the main body case 71, and the bevel gear 74 transmits the rotation to the threshing output pulley 30.
Therefore, the transmission gear box 26 is formed in a substantially “inverted Z” shape when viewed from the front (FIG. 5), and has a shape in which the belt tension is balanced and is long in the vertical direction. Therefore, the overall length of the combine can be shortened, and a rational structure is obtained.

Reference numeral 75 denotes a battery provided below the upper cylindrical portion 73. The battery 75 is disposed on the front left side of the threshing device 3, and maintenance such as attachment / detachment / charging of the battery 75 can be facilitated. In addition, since the upper cylindrical portion 73 is provided above the battery 75 and the sorting output pulley 41 is mounted on the upper cylindrical portion 73, the sorting output pulley 41 can be arranged using the space effectively.
Thus, the transmission gear box 26 has a lower cylindrical portion 72 positioned below the main body case 71 in a side view, and an upper cylindrical portion 73 provided above the main body case 71, and the main body case 71, the lower cylindrical portion 72, The upper cylindrical portion 73 is formed in a vertically long shape with substantially the same width, and the sorting output pulley 41 mounted on the upper cylindrical portion 73 is used to add the cereal to the cereal supply port 79 formed on the front plate 78 of the threshing device 3. It arrange | positions in front of the swing sorting shelf 9 under the entrance funnel (funnel) 76 (FIG. 3) to guide.

In addition, since the transmission gear box 26 is configured to be vertically long, a space between the cutting suspension base (not shown) of the cutting unit 4 and the transmission gear box 26 can be widened, and the hot air discharge from the engine 20 is improved. , Effective in heat balance.
The intermediate input pulley 23 of the lower cylindrical portion 72 of the transmission gear box 26 is positioned below the starting end portion of the swing sorting shelf 9, so that it is between the engine output shaft 21 of the engine 20 and the intermediate input pulley 23 of the transmission gear box 26. The distance can be increased, and troubles such as attachment and detachment of the belt 34 can be prevented.
In this case, when the axial center of the lower cylindrical portion 72 is positioned behind the front plate 78 of the threshing device 3 (FIG. 7), between the engine output shaft 21 of the engine 20 and the intermediate input pulley 23 of the transmission gear box 26. , And the durability of the bearings of the engine output shaft 21 and the intermediate input pulley 23 can be improved.

Thus, when the threshing output pulley 30 is disposed on the left side of the front view from the center of the handling cylinder 7 (FIG. 5), it is possible to avoid the entrance funnel 76 and to make the line of the belt 34 easy and improve durability. Reduce costs.
In addition, since the line of the belt 34 is avoided by avoiding the entrance funnel 76, an extra counter pulley or the like is unnecessary, and the configuration can be simplified.
Therefore, the transmission gear box 26 of the embodiment is provided with a compressor 80 of an air conditioner (not shown) (FIG. 8), and the transmission gear box 26 is also used as a transmission case of the compressor 80. The compressor 80 is disposed between the intermediate input pulley 23 and the battery 75 in front view and below the threshing output pulley 30.
Therefore, a transmission case dedicated to the compressor 80 is not required, the number of parts is reduced, both cost and weight are reduced, and space can be used effectively.

Accordingly, reference numeral 81 denotes a transmission case that transmits the rotation of the engine 20 to the traveling device 2. The transmission case 81 is provided with a hydraulic continuously variable transmission (HST) 82. The rotation of the engine 20 is input to the shift input pulley 83 of the hydraulic continuously variable transmission 82, and the hydraulic continuously variable transmission 82 is continuously variablely transmitted to the transmission case 81 to travel.
The mission case 81 is provided with a cutting output pulley 84, and the cutting output pulley 84 hangs a belt (first belt) 84A between the cutting input pulley 85 and the cutting output pulley 84.
The cutting output pulley 84 is fixed to a speed change output shaft 86 provided in the transmission case 81, and the speed change output shaft 86 is continuously variable by the output of a hydraulic continuously variable transmission (HST) 82 that is speed-changed by a main speed change lever. Shifting rotation is input to the cutting input shaft 88 of the cutting unit 4 via the belt tension type cutting clutch 87 from the cutting output pulley 84 that is driven to shift and attached to the tip of the shifting output shaft 86 via a one-way clutch, The cutting unit 4 is shifted in synchronization with the traveling speed of the traveling device 2 (FIGS. 3 and 4).

In this case, in the normal operation, the cutting unit 4 rotates in synchronization with the traveling speed of the traveling device 2 through the transmission path H transmitted from the engine 20 → the hydraulic continuously variable transmission 82 → the transmission output shaft 86 of the transmission case 81. is transmitted (FIG. 4), whereas, rotation transmitted to the reaper 4, is transmitted reaper input shaft 88 → the intermediate heat transfer movement pulley 58 → the belt (second belt) 58A → the input pulley 56B for the front side supply conveyor synchro (FIG. 4), the front grain supply / conveyance device 16 is driven.
Further, in the cutting operation at the time of dredging, the engine 20 → the transmission gear box 26 → the front supply / conveyance output shaft 54 → the front supply / conveyance output pulley 55 → the belt 59 → the front supply / conveyance input pulley 56A → the front supply / conveyance input shaft 57. → Pulse feed conveyance synchronization pulley 56B → A constant drive rotation is input by the transmission path G transmitted to the cutting input shaft 88 (FIG. 4), and the cutting unit 4 and the front grain supply and transfer device 16 are driven.

Therefore, a tension roller for tensioning and relaxing the belt 59 is provided to form a scratching clutch 89, and a scraping pedal (not shown) for turning on and off the scratching clutch 89 is provided in the control unit.
Therefore, the front supply / transport input pulley 56A and the front supply / transfer synchronization pulley 56B are provided at both ends of the front supply / transport input shaft 57 mounted on the gear case 60, and two transmission paths are provided on the front supply / transport input shaft 57. Since the separate drive is transmitted, the reaping part 4 and the front grain supply / conveyance device 16 can be switched to a variable speed rotation synchronized with the traveling speed and a constant speed from the engine 20 with a simple configuration.
Thus, the traveling device 2 attaches the wheels 101 and the like to the traveling frame 100 (FIG. 9), and attaches the traveling frame 100 to the body frame 1 by the rolling mechanism L so as to be vertically movable. Reference numeral 102 denotes a front rolling arm of the rolling mechanism L. The front end of the rolling mechanism L is pivotally attached to the traveling frame 100, and the base portion is attached to the front fulcrum metal 103 provided on the body frame 1 side by the rolling fulcrum shaft 104. The front fulcrum metal 103 is attached to the lower side of each upper metal 105 by attaching the upper metal 105 to the lower front side of each of the left and right main beams 106 that are long in the overall length of the machine frame among the plurality of vertical frames 106 of the machine frame 1. The left and right lower metal 107 is attached by bolts 108, and the rolling fulcrum shaft 104 is mounted on and supported by the lower metal 107.

The wheel pipe support 110 is attached to the front fulcrum metal 103, and the left and right wheel pipes 111 of the transmission case 81 are attached to and supported by the wheel pipe support 110. 112 is a support surface of the foil pipe support 110, 113 is a drive wheel, 114 is a boss provided on the lower metal 107, 115 is a connecting portion for connecting the left and right lower metal 107, and the connecting portion 115 is a pair of front and rear. The front fulcrum metal 103 is formed in a substantially rectangular shape in plan view. 116 is a horizontal first frame of the fuselage frame 1, 117 is a rolling cylinder, 118 is a pitching cylinder, 119 is a pitching link, and 119A is a pitching vertical axis. The shaft 119A moves up and down for pitching.
Accordingly, since the front fulcrum metal 103 is used to support the foil pipe support 110 that overhangs larger than the vertical frame main beam 106, it is easy to ensure strength.

Since the upper metal 105 of the front fulcrum metal 103 protrudes to the side of the vertical frame main beam 106 in a plan view, the foil pipe support 110 is simply extended to the side of the main beam 106 by simply extending the rear side of the foil pipe. The pipe 111 can be firmly supported, and the weight of the entire support structure can be reduced.
Since the foil pipe support portion 110 is configured to improve the strength only by the steel plate configuration, the number of constituent members can be reduced and the cost merit is great.
The connecting portion 115 of the front fulcrum metal 103 is formed integrally with the upper metal 105 so as to be connected to the left and right so as to connect the left and right upper metals 105. The left and right central portions of the connecting portion 115 are formed in an arch shape, are higher than the mounting surfaces of the lower metal 107 and the upper metal 105, and are equivalent to the lower surface of the transmission case 81 in which the central portion is configured in a gate shape. Or make up high.
By integrally configuring the left and right upper metal 105 with the connecting portion 115, the support strength of the front fulcrum metal 103 can be improved.

Moreover, since the left-right center part of the connection part 115 of the metal 103 for front side fulcrum is made high in the shape of an arch (FIG. 16, FIG. 17), mud removal in a wet field is good and wet field travelability improves.
The rolling arm 102 is formed by a hollow member at a position overlapping (wrapped) in plan view with the upper surface of the roller wheel 101 and having a bow shape avoiding the wheel 101 when viewed from the side.
By adopting a hollow shape, the rolling arm 102 can improve torsional strength and can be reduced in weight. In addition, mud adhesion to the side surface is eliminated and mud dropping to the road can be reduced.
Further, since the rolling arm 102 is provided at a position overlapping (wrapped) in plan view on the upper surface of the wheel 101 (FIG. 18), the area where mud accumulates on the rolling arm 102 and the wheel 101 can be reduced. This reduces the accumulation of mud and, as a result, reduces mud dropping on the road.

Further, since the traveling frame 100 and the rolling arm 102 are close to each other, the configuration of the rolling stopper provided on the traveling frame 100 can be simplified.
Thus, except for the last wheel 101 of the wheels 101, the front wheel is attached to a front wheel mounting member 120 provided on the traveling frame 100 (FIG. 19), and the last wheel 101 is a rear wheel mounting member. The rear wheel attachment member 121 is detachably attached to the front wheel attachment member 120 and / or the traveling frame 100, and the final wheel 101 attached to the rear wheel attachment member 121 is attached to the rear wheel attachment member 121. The installation length of the crawler 122 can be changed by removing the rear side wheel mounting member 121 together.
Therefore, at least the front wheel mounting member 120 is formed of a single member, and thus the occurrence of vibration during traveling is suppressed. Moreover, since the last wheel 101 attached to the rear wheel mounting member 121 when the crawler 122 is lengthened can be removed together with the rear wheel mounting member 121, the rear wheel mounting member 121 can be formed small.

Accordingly, a metal front support vertical member 132 is provided inside the upper metal 105 (FIG. 20), and the upper portion of the metal front support vertical member 132 is a portion of the horizontal first frame 116 of the body frame 1 inside the main beam 106. The horizontal first frame 116 and the main beam 106 are connected and fixed, and the lower portion of the metal front support vertical member 132 is fixed to the side surface of the upper metal 105.
In this case, the rear portion of the front fulcrum metal 103 (upper metal 105) is configured to extend below the horizontal second frame 134 of the machine body frame 1 (FIG. 20).
Therefore, by utilizing the intersection between the main beam 106 and the horizontal first frame 116, the strength of this portion can be improved by the metal front support vertical member 132 and the upper metal 105.
Moreover, it is only necessary to add the metal front supporting vertical member 132, and the number of parts can be reduced and the strength can be improved.
A wide space can be formed between the left and right main beams 106, mud removal in the wet fields is good, and wet field travelability is improved.

Thus, reference numeral 140 denotes an idle roller of the traveling device 2 (FIG. 23), and the idle roller 140 is attached to the traveling frame 100 by the idle roller attachment member 141 so that the front and rear positions can be adjusted. The idle roller mounting member 141 is formed by fixing a flat plate-like lower member 143 to the lower surface of an upper member 142 formed in a “U” shape having an upper surface and left and right side surfaces. The tip of the upper member 142 is formed in a support portion 146 that supports the roller shaft 145 of the idle roller 140 by causing the left and right side plates to protrude rearward. 147 is a cover member provided on the upper surface of the rear portion of the upper member 142, 148 is a crawler tension shaft, 149 is a tip mounting portion of the crawler tension shaft 148, 150 is a fixing member of the tip mounting portion 149, and 151 is a base support of the crawler tension shaft 148 Part.
Due to the above configuration, the idle roller mounting member 141 can be formed with a small number of members in combination with an iron plate.

Therefore, reduction cases 160 are provided on both the left and right sides of the lower portion of the transmission case 81 (FIG. 25), and the lower portion of the reduction case 160 is positioned below the lower surface of the mission case 81 so that the reduction case 160 and the mission case 81 The communication holes 162 communicate with each other so that the lubricating oil in the mission case 81 flows into the reduction case 160, and drain plugs 165 are provided in the left and right reduction cases 160, respectively.
Therefore, the lubricating oil in the mission case 81 can be discharged at the lower part of the reduction case 160 where the drain plug 165 can be easily removed, and maintenance is facilitated.
Conventionally, the three drain plugs 165 of the mission case 81 and the left and right reduction cases 160 have been used. However, the maintenance can be easily performed and the cost can be reduced because the plug can be performed at two locations.

(Operation of Example)
When the engine 20 is started, the rotation of the engine 20 is transmitted to the transmission case 81 via the hydraulic continuously variable transmission 82, and the transmission case 81 travels by driving the traveling device 2. Is transmitted to the mowing unit 4 to drive the mowing unit 4, and the rotation synchronized with the traveling speed of the mowing unit 4 is transmitted to the front grain supply / conveying device 16 to harvest the grain harvested by the mowing unit 4. Smoothly transport the kite.
That is, in a normal cutting operation, the front corn supply / conveyance device 16 is transmitted and driven by the transmission path H on the lower side of the cutting unit 4.
Further, the rotation of the engine 20 is transmitted to the intermediate input pulley 23 of the transmission gear box 26, and the rotation branched by the transmission gear box 26 is output from the front supply / conveying output shaft 54 of the transmission gear box 26 and supplied to the front side. The front rice cake supply / conveying device 16 is driven by being transmitted to the output pulley 55 for conveyance, and the rice cake harvested by the cutting unit 4 is delivered to the rice straw supply device 7 by the front rice cake supply / conveying device 16. In the cereal supply device 7, the rotation output from the output shaft 40 for selection of the transmission gear box 26 is transmitted to the rear drive gear 52 of the cereal supply device 7 via the dust exhaust fan input pulley 45 and the rear gear case 51. Thus, the cereal supply device 7 is driven, and the cereal supply device 7 supplies the tip side to the threshing chamber 6 while nipping and conveying the cereal.

In the threshing chamber 6, the rotation branched to the threshing output shaft 27 among the rotations transmitted to the transmission gear box 26 is transmitted from the threshing output pulley 30 to the handling cylinder 7 via the handling cylinder input pulley 31 and the gear case 35. Then, with the rotating handling cylinder 7, the tip side of the culm that is nipped and conveyed by the cereal supply device 7 is threshed.
Another rotation branched in the transmission gear box 26 is output by the sorting output pulley 41 and transmitted to the Karatsu output pulley 47 to rotate the Karatsu 8 and through the swing input pulley 42. Then, the swing sorting shelf 9 is swung to be sorted. The selected grain is collected by the first conveyor 12 driven by the first conveyor input pulley 43 to which the rotation is transmitted from the output pulley 41 for sorting.
Therefore, the cutting operation at the time of dredging is performed by stopping the traveling of the traveling device 2, so that the front grain supply / conveying device 16 is driven from the engine 20 through the transmission path G not via the hydraulic continuously variable transmission 82, In the transmission path G, the cutting part 4 becomes the lower side of the front grain supply / conveyance device 16 and the rotation is transmitted and driven.

That is, in the dredging work, when the output of the hydraulic continuously variable transmission 82 is stopped by the main shift lever of the control unit to stop running, the cutting unit 4 stops driving once, and then the control unit scratches. When the take-in clutch 89 is turned on and operated by a built-in pedal (not shown), the rotation is transmitted to the cutting unit 4 to perform cutting.
Therefore, it is possible to perform the dredging work only by performing the travel stop operation and the cutting drive operation, and the operation is simplified.
Therefore, when the cutting unit 4 is opened to the outside of the machine body, the belt 84A is removed from the cutting input pulley 85, and further, the belt 58A is removed from the intermediate transmission pulley 58. Even without removing the three, the cutting unit 4 can be opened to the outside of the machine body, and the maintenance of the cutting unit 4 and the machine body side can be easily performed.
Of course, it is possible to appropriately combine the configurations of the respective embodiments.

The side view of the example of a combine. The side view of a threshing apparatus. The side view between a cutting part and a threshing apparatus. Schematic diagram of the transmission mechanism of the combine. The same part expansion | deployment state front view. Fig. 4 is a developed state diagram in the vicinity of the transmission gearbox. The same side view. The side view which attached the compressor to the transmission gearbox integrally. The side view of a traveling apparatus. The side view of the drive wheel vicinity. Schematic diagram of FIG. The top view near a foil pipe support part. Schematic diagram of FIG. The top view near the metal for front side fulcrums. The schematic of FIG. The front view near the metal for front side fulcrums. The schematic of FIG. The top view of a driving | running | working frame. The side view of a traveling apparatus. Side view of the vicinity of the metal for the front fulcrum. The front view near the metal for front side fulcrums. The top view near the metal for front side fulcrums. The side view near an idol roller. FIG. The front view of a mission case part.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Airframe frame, 2 ... Traveling device, 3 ... Threshing device, 4 ... Cutting part, 5 ... Glen tank, 10 ... Dust removal processing cylinder, 11 ... Second processing cylinder, 12 ... First conveyor, 13 ... Second conveyor , 14 ... Suction dust exhaust fan, 15 ... Grain supply / conveyance device, 16 ... Front grain supply / conveyance device, 17 ... Exhaust / conveyance device, 20 ... Engine, 21 ... Engine output shaft, 22 ... Engine output pulley, 23 ... Intermediate input pulley, 24 ... belt, 25 ... intermediate input shaft, 26 ... transmission gear box, 27 ... output shaft for threshing, 28 ... gear, 30 ... threshing output pulley, 31 ... handling cylinder input pulley, 32 ... dust removal processing cylinder Input pulley 33 ... No. 2 processing cylinder input pulley 34 ... Belt 36 ... Gear 40 ... Sorting output shaft 41 ... Sorting output pulley 42 ... Swing input pulley 43 ... First conveyor input pulley 44 ... Second conveyor input block 45 ... dust exhaust fan input pulley, 46 ... belt, 51 ... rear gear case, 52 ... rear drive gear, 54 ... front supply / transport output shaft, 55 ... front supply / transport output pulley, 56 ... front supply / transport Input pulley, 59 ... belt, 60 ... gear case, 61 ... front drive gear, 61A ... output shaft for external equipment, 67 ... tension clutch pulley, 68 ... tension arm, 69 ... shaft, 71 ... main body case, 72 ... lower side Cylindrical part, 73 ... Upper cylindrical part, 74 ... Bevel gear, 75 ... Battery, 76 ... Inlet funnel, 78 ... Front plate, 80 ... Compressor, 81 ... Transmission case, 82 ... Hydraulic continuously variable transmission, 83 ... Cutting output pulley DESCRIPTION OF SYMBOLS 100 ... Running frame 101 ... Rolling wheel 102 ... Rolling arm 103 ... Metal for front fulcrum 104 ... Rolling fulcrum shaft 105 ... Upper metal 106 ... Main beam, 107 ... Lower metal, 108 ... Bolt, 110 ... Foil pipe support part, 111 ... Foil pipe, 112 ... Support surface, 113 ... Drive wheel, 114 ... Boss part, 115 ... Connecting part, 116 ... Horizontal 1st frame, 120 ... front wheel mounting member, 121 ... rear wheel mounting member, 122 ... crawler, 132 ... metal front support vertical member, 134 ... horizontal second frame, 140 ... idle roller, 141 ... idle roller mounting Members 142, upper members, 143, lower members, 145, roller shafts, 160, reduction cases, 165, drain plugs.

Claims (3)

Below the fuselage frame (1), there is provided a traveling device (2) that travels while the rotation of the engine (20) is driven by a continuously variable transmission via a hydraulic continuously variable transmission (82) and a transmission case (81), A cutting part (4) is provided in front of the body frame (1) to transmit the rotation synchronized with the traveling speed of the traveling device (2) from the transmission output shaft (86) of the transmission case (81). A threshing device (3) for threshing the cereal supplied by the cereal supply and transport device (15) is provided above the machine body frame (1), and a front side cereal is provided at the front of the cereal supply and transport device (15). A combination gearbox (16) is provided with a transmission gearbox (26) for branching and outputting the driving force of the engine (20) at a predetermined position of the machine body frame (1), and the transmission gearbox From (26) To the outside of the body, the sorting output shaft (40) that drives the sorting unit of the threshing device (3) and the cereal supply and transport device (15) and the front supply and transport output shaft (54) are projected, and the threshing is performed. From the input shaft (57) supported by the gear case (60) in front of the device (3) to the outer end of the machine body of the cutting input shaft (88) provided in the cutting unit (4) and the front grain supply and transfer device (16). The power is split and transmitted, and a cutting clutch (87) is provided between the shift output shaft (86) and the machine body inner end of the cutting input shaft (88), and the output shaft (54) and the input shaft ( 57), and when the cutting clutch (87) is engaged, the rotation synchronized with the traveling speed of the traveling device (2) is transmitted to the cutting unit (4), and the scratching clutch (87) is engaged. When you enter a write clutch (89), the input from the output shaft (54) (57) the driving force is the transmission to, characterized in that a configuration in which the input shaft (57) from the front culms supply transport device (16) and the reaper (4) to the driving force is branched transmission combine . In the invention of claim 1, wherein the reaper (4) and is supported on the support portion provided on the front one side of the body frame (1) (65) to releasably configured to body outward, the reaper A first belt (84A) is wound around a cutting input pulley (85) provided at the inner end of the body of the input shaft (88) and a cutting output pulley (84) provided at the transmission output shaft (86), and the input shaft The second belt (58A) is wound around the pulley (56B) provided in (57) and the intermediate transmission pulley (58) provided at the machine body outer end portion of the cutting input shaft (88), and the first belt (84A) is attached. A combine configured to remove the second transmission belt (58A) from the intermediate transmission pulley (58) and to open the harvesting part (4) outward from the body, from the cutting input pulley (85) .   3. The combine according to claim 2, wherein the transmission gear box (26) is provided with an external device output shaft (61A) for driving an external device such as a hydraulic pump.

Images