KR101506520B1 - Combine - Google Patents

Abstract

Provided is a combine having a small power transmission device for transmitting driving force of an engine to a cutting device and a threshing device, and enhancing durability and maintainability.
A combine having a power transmission device (9) installed in a front portion of a threshing device (10) for transmitting a driving force of an engine (3) to a cutting device (5) and a threshing device (10) The power transmitting device 9 is provided with a first rotating member 91 that is rotationally driven by the driving force of the engine 3 and supplies a driving force to the sorting unit 6, A second rotary member 92 which is rotationally driven by the first rotary member 92 and supplies a driving force to the shearing apparatus 5 by a driving force transmitted from the second rotary member 92, And a third rotating member (93).

Description

Combine {COMBINE}

The present invention relates to a combine.

The combine is equipped with a traveling device, a cutting device, and a threshing device. The combine is taken while traveling and performs hoisting and sorting. As a conventional combine, for example, in Patent Document 1, a grain bundle cut in a pre-loading portion (cutting device) is transported to a top threshing chamber (a threshing portion of a threshing device) by a transporting device, And a power transmission device for a general combine that is tilted by a driving cylinder that rotates and drives in an upper threshing chamber. The power transmission device of the universal combine is configured to transmit the driving force of the engine to the shearing device, the threshing portion of the threshing device, and the sorting portion of the threshing device. The power transmission device is provided on each side of the sorting portion of the threshing device provided below the upper threshing chamber and the upper threshing chamber A plurality of pulleys, a belt connecting the pulleys, and a rotating shaft.

Japanese Patent Application Laid-Open No. 2002-238341

In the power transmission device of the universal combine described in Patent Document 1, a plurality of pulleys are provided on both sides of the upper threshing compartment and the sorter, so that a belt connecting the pulleys is disposed on both the left and right sides of the upper threshing compartment and the sorter. It is necessary to arrange the rotary shafts connecting the pulleys with each other, and to pass the rotary shafts through the gear box that transmits the driving force to the upper threshing chambers. In this way, it is necessary to dispose the belt on each side of the upper threshing chamber and the separator, or to pass the rotating shaft through the gear box, thereby enlarging the space occupied by the power transmitting device and increasing the size of the combine itself. . Further, in the power transmission device of the universal combine disclosed in Patent Document 1, it is necessary to dispose the belt on each of both sides of the upper threshing compartment and the sorter, or to pass the rotary shaft through the upper threshing compartment. In view of improvement in durability and ease of maintenance, There is room for better improvement.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a combine which is compact in size and which improves the durability and the maintenance property of the power transmission device for transmitting the driving force of the engine to the shearing device and the threshing device.

In order to achieve the above object, the present invention takes the following technical means.

That is, the invention described in claim 1 is characterized in that it comprises a cutting device (5) provided on the front part of the base body, a threshing roll (5) provided on left and right sides of the grain tank (8) and having a lower sorting part And a power transmission device (9) provided at a front portion of the threshing device (10) for transmitting the driving force of the engine (3) to the cutting device (5) and the threshing device (10) The combine according to claim 1, wherein the power transmitting device (9) is provided with a first rotating member (91) that is rotationally driven by a drive force of the engine (3) and supplies a driving force to the sorting unit (6) A second rotary member 92 that is rotationally driven by the transmission of a driving force from the first rotary member 91 and supplies a driving force to the threshing portion 7 and a second rotary member 92 which is rotationally driven by transmission of a driving force from the second rotary member 92 And a third rotary member (93) for supplying a driving force to the cutting device (5). The.

According to a second aspect of the present invention, the second rotary member (92) is provided above the first rotary member (91), and when the driving force is transmitted from the first rotary member (91) The first rotary member 91 and the second rotary member 92 are configured such that the first rotary member 91 and the second rotary member 92 are rotatably driven by the first rotary member 91 and the second rotary member 92, And the conveying device (56) provided in the cutting device (5) is driven by the transmission of the driving force from the second rotary member (92).

According to a third aspect of the present invention, there is provided a threshing device (10), which is disposed forward of the threshing device (10) and is narrower in width than the threshing device (10) And a first support member having a front frame 23 and provided with the first rotary member 91 behind the threshing front frame 23 and rotatably supporting the third rotary member 93 115) is provided in front of the threshing front frame (23).

The invention according to claim 4 is characterized in that the first rotating member 91, the second rotating member 92, and the second rotating member 91 are provided in a space K formed between the threshing front frame 23 and the grain tank 8, And the third rotating member 93 is disposed.

The invention according to claim 5 is characterized in that a first belt 96 for interlocking the engine 3 and the first rotary member 91 is connected to the first rotary member 91 and the second rotary member 92 And the second belt (107) to be interlocked is disposed at a portion near the grain tank (8).

The invention according to claim 6 is characterized in that a third belt 116 for interlocking the second rotating member 92 and the third rotating member 93 is disposed in the vicinity of the grain tank 8 The combiners described in claim 5 are arranged.

According to a seventh aspect of the present invention, in the threshing front frame (23), two plate members (26) are arranged at intervals in the front and back, and the first rotating member It is assumed that the second support member 94 and the first support member 115 are connected to the plate member 26 as the combine according to claim 6.

The invention as set forth in claim 8 is characterized in that a first tension roller 98 for imparting a tension to the first belt 96 is supported on the leading end of the first roller supporting piece 99, ) Is rotatably attached to the threshing front frame (23).

The invention according to claim 9 is characterized in that the proximal end of the first roller supporting piece 99 is rotatably attached to the first tension supporting part 100 and the first tension supporting part 100 is fixed to the threshing front frame 23, As the combine according to claim 8.

(Effects of the Invention)

According to the present invention, it is possible to reduce the size of the power transmission device (9) for transmitting the driving force of the engine (3) to the cutting device (5) and the threshing device (10), and to improve the maintenance of the combine.

1 is a side view showing a schematic structure of a combine according to the embodiment;
2 is a plan view showing a schematic configuration of a combine according to the embodiment;
3 is a side view of the power transmission device of the combine from the grain tank side according to the embodiment.
4 is a sectional view taken along the line a-bc in Fig. 3;
5 is an enlarged side view showing a second tension support portion of the combine according to the embodiment;
6 is a cross-sectional view of a loose pulley of the lining type of the combine according to the embodiment.
Fig. 7 is a transmission diagram of the combine according to the embodiment; Fig.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. The present invention is not limited by these embodiments. In addition, the constituent members in the following embodiments include those which can be substituted by the person skilled in the art easily, or substantially the same.

[Embodiment Mode]

Fig. 1 is a side view showing a schematic configuration of a combine according to the embodiment, Fig. 2 is a plan view showing a schematic configuration of a combine according to the embodiment, Fig. 3 is a side view of the combine- Fig. 4 is a sectional view taken along the line a-bc in Fig. 3, Fig. 5 is a side view showing an enlarged view of the second tension support portion of the combine according to the embodiment, Fig. 6 is a sectional view of the lining pulley of the combine according to the embodiment, 7 is an electric diagram of the combine according to the embodiment. In the following description, the forward and backward directions are the forward and backward directions of the combine 1. More specifically, the forward and backward directions are the advancing direction when the combine 1 advances, and the front side in the straight forward direction is referred to as the front side and the rear side is referred to as the rear side. The vehicle-width direction is a direction orthogonal to the front-rear direction, and the right side in the forward direction is referred to as the right side, and the left side in the forward direction is referred to as the left side. The vertical direction is a direction orthogonal to the longitudinal direction and the vehicle width direction. These forward and backward directions, the vehicle width direction and the vertical direction are orthogonal to each other.

The combine 1 of the present embodiment shown in Fig. 1 is a general purpose combine capable of treading, taking the example of soybean, buckwheat, and the like in addition to rice, while running on its own by the power generated by the engine 3 as a power source. 1 and 2, the combine 1 includes a base frame 2, an engine 3 as a power source, a traveling device 4, a cutting device 5, a tilting device 10, , A grain tank (8), and a power transmission device (9).

The base frame 2 constitutes a frame-like structural member of the body of the combine 1. [ As shown in Fig. 1, the base frame 2 includes a central horizontal frame 21 (corresponding to a frame, shown in Fig. 3) provided on the side of the sorting section 6 of the threshing apparatus 10 An upper horizontal frame 22 (shown in FIG. 3) provided above the apparatus 10, a threshing front frame 23, and a feed room guide frame 24.

As shown in Fig. 1, the threshing front frame 23 is provided in the vertical direction in front of the threshing device 10 and is formed to be narrower than the width of the threshing device 10 in the vehicle width direction. The left end of the threshing front frame 23 is aligned with the left end of the front portion of the threshing device 10 and the right end of the threshing front frame 23 is positioned in front of the threshing device 10 And is disposed biased to the left of the negative right end. As shown in Fig. 3, the threshing front frame 23 includes two vertical frames 25 (only one of which is shown in Fig. 3) standing vertically in the vehicle width direction and vertical frames 25, And two plate members 26 which are connected to each other and overlap each other at intervals in the front-rear direction of the base frame 2.

3, the feed guide frame 24 is provided between the upper horizontal frame 22, that is, between the threshing device 10 and the threshing front frame 23, and is disposed between the upper horizontal frame 22 and the threshing front frame 23). The sorting unit 6 and the trolley unit 10 and the threshing front frame 23 and the conveying unit 56 of the cutting unit 5 and the cabin 5 between the threshing front frame 23 and the grain tank 8, A space K is formed between the inner tank 28 and the grain tank 8 as shown in Fig.

The engine 3 is mounted on the front side in front and rear directions on the base frame 2. The engine 3 is a source of the driving force used in the combine 1. [ The engine 3 is an internal combustion engine, and is a heat engine that converts the energy of fuel into mechanical work by burning the fuel in the combustion chamber and outputs it as rotational power. The engine 3 is provided below the cabin 28 on which the operation stool 27 on the base frame 2 is installed.

The traveling device (4) is installed below the base frame (2) in the vertical direction. The traveling device (4) travels the entire combine (1) by the driving force from the engine (3). The traveling device (4) has a crawler (41). The crawlers 41 are provided at a pair of spaced intervals in the vehicle width direction below the vertical direction of the base frame 2. The traveling device 4 causes the crawler 41 to be driven by the driving force transmitted from the engine 3, thereby driving the entire combine 1 to the forward and backward directions.

The cutting device (5) is installed in the front part of the base frame (2). The cutting device 5 is driven by the driving force from the engine 3 to take a curved path, and transports the cut trough to the threshing device 10 or the like. The cutting device 5 is driven by a driving force from the engine 3 to assume a curved path and includes a preload part 55 and a conveying device 56. [ The preload unit (55) includes an auger frame (51) and an auger (52). The Auger frame 51 comprises a bottom plate 51a, a pair of right and left side plates 51b on the left and right in the vehicle width direction, and a back plate 51c. The auger 52 is disposed in the auger frame 51 along the vehicle width direction and is rotatably supported. The preloading part 55 is provided with a cutting edge 53 at the front edge of the bottom plate 51a and a raking reel 54 for raking a curved edge above the cutting edge 53 do. The laying reel 54 is provided so that the position in the front-rear direction and the height in the vertical direction are adjustable. The cutting device 5 is driven by the power transmitted from the engine 3, and the auger 52 is driven, so that the cutter 53 preliminarily collects the curtain.

The transfer device 56 is installed on the rear side of the preload part 55, more specifically, between the preload part 55 and the base frame 2. The conveying device 56 transports the curved portion to the threshing device 10 by the driving force from the engine 3. [ The transport device 56 includes a case 57 and a transport mechanism 58. The case 57 is formed in a square shape in cross section and is provided so as to extend from the rear plate 51c of the auger frame 51 toward the threshing device 10 on the rear side in the front and rear direction. The case 57 is attached to the threshing front frame 23 at an end portion on the rear side in the front-rear direction. Also. The case 57 is attached to the threshing device 10 by a connecting barrel (not shown). The transport mechanism 58 is installed in the case 57. The conveying device 56 drives the conveying mechanism 58 by the power transmitted from the engine 3 to convey the curved portion from the pre-loading portion 55 to the trolley.

The threshing device 10 is disposed behind the cutting device 5 and at the side of the grain tank 8 and has a lower sorting portion 6 and a threshing portion 7 at the upper portion. The sorting section 6 is provided above the base frame 2 and behind the conveying device 56 of the cutting device 5. [ The sorting section 6 is provided on the side of the grain tank 8 and on the left side of the base frame 2. The sorting section 6 is a device for separating the grain and the contaminants such as straw between the tumbled tumbles 7 by the driving force from the engine 3. [ The sorting section 6 is provided on the side of the central horizontal frame 21 and has a sorting chamber 61 and a swing sorting section 62 provided in the sorting chamber 61 and an air blowing opening 63. The sorting chamber 61 is provided with the curled portion that is flipped from the threshing portion 7 by the blowing from the blowing air hole 63 driven by the driving force transmitted from the engine 3 and the oscillation of the shaking discriminating portion 62 Removes impurities from the material to be treated, and collects the grains selectively. The object to be processed refers to the movement of the ram 73 of the threshing device 10 from the groove.

The threshing section 7 is provided above the base frame 2 and at the rear of the conveying device 56 of the cutting device 5. The threshing portion 7 is provided at the side of the grain tank 8 and on the left side of the base frame 2. The threshing section (7) thrashes the curtain conveyed by the driving force from the engine (3). That is, the threshing section (7) is a device for separating the curved portion from the curved section cut by the cutting device (5).

The threshing section 7 is disposed above the sorting section 6 and also between the central horizontal frame 21 and the upper horizontal frame 22. The threshing section 7 includes a feed chamber 71, a feed screw 73 provided in the feed chamber 71, a feed shaft 74, and the like. The swash plate 73 is formed cylindrically, and a plurality of swash plates 75 are provided on the outer circumferential surface. The feeding shaft 74 is formed in a columnar shape and inserted into the inside of the ramp 73, and is integrally rotatably engaged. The feeding shaft (74) and the swinging (73) are supported in the feeding chamber (71) so as to be able to rotate integrally with the rotation axis as a rotation center. The axis of rotation is parallel to the longitudinal direction of the combine 1. The ram 73 is driven by the driving force from the engine 3 to rotate around the feeding shaft 74 as the center of rotation, The supply chamber 71 is surrounded by the supply network 76 on the lower side in the vertical direction of the ram 73.

The grain tank 8 is provided on the side of the threshing device 10. The grain tank 8 temporarily stores curled grains of the threshing device 10. The drain tank (81) is connected to the grain tank (8). The discharge auger 81 conveys the curl in the grain tank 8 by the driving force from the engine 3 and discharges the grain to the outside of the grain tank 8.

The power transmission device 9 is attached to the right end of the threshing front frame 23 and is provided at a side portion facing the grain tank 8 in the front portion of the threshing device 10. [ The power transmission device 9 drives at least the driving force of the engine 3 to the conveying device 56 of the cutting device 5, the sorting part 6 of the threshing device 10, and the threshing part 7 of the threshing device 10. [ .

As shown in Figs. 3, 4 and 7, the power transmission device 9 includes a first pulley 91 (first rotating member), a second pulley 92 (second rotating member) A pulley 93 (third rotating member), and the like. The first pulley 91, the second pulley 92 and the third pulley 93 are provided in the space K.

The first pulley 91 is rotationally driven by the driving force of the engine 3 and supplies the driving force to the selector 6. The first pulley 91 is provided with a small diameter pulley 91a and a large diameter pulley 91b integrally formed on the coaxial shaft and the large diameter pulley 91b is provided near the grain tank 8 in the vicinity of the small diameter pulley 91a, (Second support member) 94 connected to the plate member 26 on the rear side of the frame 23. The support member As a result, the first pulley 91 is disposed behind the threshing front frame 23 and below the first guide frame. A drive shaft 95 connected to the sorting unit 6 is attached to the first pulley 91.

A first belt 96 for connecting the engine 3 and the first pulley 91 is mounted on the large-diameter pulley 91b of the first pulley 91 and the engine pulley 3a attached to the output shaft of the engine 3 have. The tension of the first belt 96 is imparted by the first tension member 97.

3, the first tension member 97 includes a first tension roller 98, a first roller support piece 99, a first tension support portion 100, a first tension receiving portion 101). The first tension roller 98 is disposed below the first belt 96 to contact the first belt 96 and impart tension to the first belt 96. [ The first roller support piece 99 rotatably supports a first tension roller 98 at its tip end. The first roller supporting piece 99 is rotatable about a proximal end portion attached to the threshing front frame 23 through the first tension supporting portion 100. The first tension supporting portion 100 rotatably attaches the proximal end portion of the first roller supporting piece 99 to the threshing front frame 23. The first tension supporting portion 100 is attachable to and detachable from the threshing front frame 23 by bolts 102 or the like. The first tension receiving portion 101 is for biasing the first roller supporting piece 99 in the direction in which the first tension roller 98 approaches the first belt 96 and is provided on the right side of the sorting portion 6 Respectively. The first tension receiving portion 101 is provided at the proximal end portion of the first roller supporting piece 99 so as to bias the first roller supporting piece 99 in the direction in which the first tension roller 98 comes close to the first belt 96, A tension coil spring 103 attached to the sorting unit 6, and the like. The first tension member 97 described above is a clutch of the threshing device 10, and is connected to a pilot port of a control unit not shown in the drawing by a wire or the like.

The second pulley 92 is rotationally driven by transmitting a driving force from the first pulley 91 and supplies a driving force to the threshing portion 7. The second pulley 92 is provided above the first pulley 91 and connected to the pulley 73 of the threshing portion 7 to transmit the driving force from the first pulley 91 to rotate the pulley 73 . The second pulley 92 is provided with a small diameter pulley 92a and a large diameter pulley 92b integrally formed on the coaxial shaft and the small diameter pulley 92a is installed near the grain tank 8 rather than the large diameter pulley 92b, And is rotatably supported by a support member 104 connected to the plate member 26 on the front side of the frame 23. [ The second pulley 92 is attached with a drive shaft 106 of a gear box 105 that connects the second pulley 92 and the pulley 73 of the threshing portion 7 of the threshing device 10.

The second belt 107 is connected to the large diameter pulley 92b of the second pulley 92 and the small diameter pulley 91a of the first pulley 91 to connect the first pulley 91 and the second pulley 92 have. In this way, the first belt 96 is installed near the grain tank 8 rather than the second belt 107. The second belt 107 is tensioned by the second tension member 108.

The second tension member 108 includes a second tension roller 109, a second roller support piece 110, a pivot pin 111, and a second tension receiving portion 112. The second tension roller 109 is provided on the rear side of the second belt 107 to contact the second belt 107 and apply tension to the second belt 107. [ The second roller supporting piece 110 rotatably supports a second tension roller 109 at its tip end. The second roller supporting piece 110 is rotatably attached to the central horizontal frame 21 about the pivot pin 111 provided at the center. The second tension receiving portion 112 is for biasing the second roller supporting piece 110 in the direction in which the second tension roller 109 approaches the second belt 107 and is attached to the central horizontal frame 21 . 5, the second tension receiving portion 112 is formed so as to bias the second roller supporting piece 110 in the direction in which the second tension roller 109 is in the vicinity of the second belt 107, And a tension coil spring 113 attached to the proximal end of the supporting piece 110 and the central horizontal frame 21. The locus L of the outer edge of the second tension roller 109 (indicated by the one-dot chain line in Fig. 3) when the second roller supporting piece 110 is rotated about the pivot pin 111, Is a locus that does not overlap the outer edge of the lining pulley 123, which will be described later, when viewed in the axial direction of the pivot pin 111. [ In the present embodiment, the locus L is a locus passing below the outer edge of the lining type loose pulley 123 when viewed in the axial direction of the pivot pin 111.

The third pulley 93 is rotationally driven by the transmission of the driving force from the second pulley 92 and supplies the driving force to the conveying device 56 of the cutting device 5. The third pulley 93 is disposed above the first pulley 91 and below the second pulley 92 as well as connected to the conveying device 56 of the cutting device 5, 92, thereby driving the conveying device 56. [0060] A rotary shaft 114 connected to the conveying device 56 of the cutting device 5 is attached to the third pulley 93. The rotating shaft 114 is rotatably supported by a supporting metal (first supporting member) 115 connected to the plate member 26 on the front side of the threshing front frame 23. [ The third pulley 93 is rotatably supported by a support metal 115 provided in front of the threshing front frame 23 by being rotatably supported on the support metal 115 by the rotation shaft 114. [

The third belt 116 is connected to the second pulley 92 and the third pulley 93 to connect the second pulley 92 and the third pulley 93 to the small pulley 92a and the third pulley 93 of the second pulley 92. Thus, the third belt 116 is installed near the grain tank 8 rather than the second belt 107. The third belt 116 is tensioned by the third tension member 117.

The third tension unit 117 includes a third tension roller 118, a third roller support 119, a pivot pin 120, and a third tension receiver 121. The third tension roller 118 is disposed in front of the third belt 116 to contact the third belt 116 and impart tension to the third belt 116. [ The third roller supporting piece 119 rotatably supports a third tension roller 118 at its tip end. The third roller supporting piece 119 is rotatably attached to the gear box 105 around the pivot pin 120 provided at the center. The third tension receiving portion 121 is for biasing the third roller supporting piece 119 in the direction in which the third tension roller 118 approaches the third belt 116 and is attached to the gear box 105 have. The third tension receiving portion 121 is provided with the third roller supporting piece 119 and the third roller supporting piece 119 so as to bias the third roller supporting piece 119 in the direction in which the third tension roller 118 approaches the third belt 116, A tension coil spring 122 attached to the box 105, and the like. The third tension imparting unit 117 is a clutch of the cutting unit 5 and is connected to the control port of the control unit not shown in the drawing by a wire or the like.

A lining pulley 123 as a loose pulley is rotatably mounted on the rotating shaft 114 of the third pulley 93. The lining type loose pulley 123 contacts with the second belt 107 and rotates in conjunction with rotation of the second belt 107. The lining type loose pulley 123 is rotatably supported on the rotary shaft 114 by two bearings 124 as shown in Fig. These two bearings 124 are rolling bearings having an inner ring, an outer ring, and a plurality of rolling bodies provided between the inner ring and the outer ring so as to be capable of rolling, and the rolling bearings 124 of the lining type loose pulley 123 And is provided at both ends in the direction of the rotating shaft 114. 6, the two bearings 124 are located on the outer side of the bottom 125a of the outermost belt groove 125 of the lining type loose pulley 123 in the direction of the rotation shaft 114 Is installed.

The combine 1 constructed as described above is driven by the driving force generated by the engine 3 and travels while the cutting machine 5 cuts the curtain. At this time, the cutting device 5 is divided by a sieve, and the rake reel 54 scrapes the inside of the auger frame 51 and cuts it off with the cutting edge 53. The combine 1 transports the curved portion cut by the cutting device 5 to the feed 71 of the threshing portion 7 of the threshing device 10 by the transporting device 56. [ The combine 1 is rotated by the driving force transmitted from the engine 3 to the feed chamber 71 at the feed chamber 71 with the feed shaft 74 serving as a rotational center to thereby break the gap. The curled grains or the like are dropped into the sorting chamber 61 through the supply network 76. The combine 1 selects curved grains in the sorting chamber 61 of the sorting section 6 by the blowing air from the air blowing opening 63 and the shaking motion of the shaking motion separating section 62, 8).

The power transmission device 9 of the combine 1 configured as described above is configured so that the first belt 96 is driven by the driving force of the engine 3 to rotate the engine pulley 3a and the large diameter pulley 91 of the first pulley 91 91b and rotates the large-diameter pulley 91b of the first pulley 91 to rotate. The driving shaft 95 is rotated integrally with the first pulley 91 by the rotation of the large diameter pulley 91b of the first pulley 91 so that the driving force of the engine 3 is transmitted to the selector 6. [

The small diameter pulley 91a is rotated integrally with the large diameter pulley 91b by the rotation of the large diameter pulley 91b of the first pulley 91 so that the second belt 107 rotates together with the small diameter pulley 91a of the first pulley 91, Diameter pulley 92b of the first pulley 92a and the large-diameter pulley 92b of the second pulley 92 as shown in Fig. Then, the large-diameter pulley 92b of the second pulley 92 is rotationally driven by the circulating running of the second belt 107. [ The driving shaft 106 of the gear box 105 is rotated integrally with the second pulley 92 by the rotation of the large diameter pulley 92b of the second pulley 92 so that the driving force of the engine 3 is transmitted to the threshing portion 7).

The small-diameter pulley 92a is rotated integrally with the large-diameter pulley 92b by the rotation of the large-diameter pulley 92b of the second pulley 92 so that the third belt 116 rotates together with the small-diameter pulley 92a of the second pulley 92, Circulates around the third pulley 93 and the second pulley 92a. Then, the third pulley 93 is rotationally driven by the circulating running of the third belt 116. [ The rotating shaft 114 is rotated integrally with the third pulley 93 by the rotation of the third pulley 93 so that the driving force of the engine 3 is transmitted to the cutting device 5. The power transmission device 9 transmits the driving force of the engine 3 to the sorting section 6 of the threshing device 10, the threshing section 7 of the threshing device 10 and the cutting device 5. [

The rotary shaft 114 is provided with two sprockets for driving the conveying mechanism 58 of the conveying device 56 and one sprocket for driving the pre- The transport mechanism 58 has two chains wound on the two sprockets on the rear side and two driven sprockets on the front side, and a plurality of transport plates attached over the two chains. The chain is wound around the sprocket, the sprocket which is driven by the cutting blade 53 and the sprocket of the shaft which is driven by the auger 52 and the rake reel. That is, the driving force transmitted to the rotating shaft 114 is divided and transmitted to the cutting blade 53, the auger 52, and the raking reel 54. [ And the other end of the transmission shaft having the sprocket at one end thereof is provided with a conversion mechanism. This conversion mechanism is a mechanism that converts the rotation transmitted to the transmission shaft into a reciprocating rotation motion and outputs the rotation to the transmission shaft. Then, the reciprocating rotary motion of the cutting motor transmission shaft is driven by the arm not shown in the figure, and the branching cutter is installed upright on the left side of the cutting unit 53 and the cutting unit 5.

According to the combine 1 of the embodiment described above, the first pulley 91, the second pulley 92 and the third pulley 93 of the power transmitting device 9 are disposed in the front portion of the threshing device 10 The first pulley 91, the second pulley 92 and the third pulley 93 are provided on both sides of the threshing device 10 so that the first pulley 91, no need. It is possible to install only the belt 96, 107, 116 or the like connecting the pulleys 91, 92, 93 to the side surface facing the grain tank 8 of the threshing device 10, The size of the combine 1 itself can be reduced. The belts 96, 107, and 116 that connect the pulleys 91, 92, and 93 and the pulleys 91, 92, and 93 that constitute the power transmission device 9 to the grain tank Since it is possible to provide them only on the side surface facing the base 8, the durability and the maintenance property can be improved as compared with the case where they are provided on both sides.

According to the combine 1 of the embodiment, the second pulley 92 is provided above the first pulley 91 and the third pulley 93 is disposed above the first pulley 91 and the second The pulleys 91, 92, and 93 can be arranged in the vertical direction because they are provided below the pulleys 92. [ Therefore, the space occupied by the power transmitting device 9 can be more reliably suppressed, thereby making it possible to reduce the size of the power transmitting device 9 and to reduce the size of the combine 1 itself.

According to the combine 1 of the embodiment, the first pulley 91 is provided at the rear of the threshing front frame 23, and the support metal 115 for rotatably supporting the third pulley 93 is rotated Is provided in front of the front frame (23). Therefore, at least the first pulley 91 and the second pulley 92 can be provided below the feeding guide frame 24, and these pulleys 91, 92 can be disposed in a space (not shown) formed below the feeding guide frame 24, (K). Therefore, the distance between the engine 3 and the threshing device 10 can be narrowed, and the combine 1 can be further downsized.

According to the combine 1 of the embodiment, the first pulley 91, the second pulley 92 and the third pulley 91 are provided in the space K formed between the threshing front frame 23 and the grain tank 8, Since the pulley 93 is provided, the distance between the operating seat 27 and the threshing device 10 can be narrowed, and the combine 1 can be made more compact.

According to the combine 1 of the embodiment, since the first belt 96 is provided near the grain tank 8 rather than the second belt 107, the first belt 96 is separated from the first belt 96 at the time of maintenance, The two belts 107 can be separated. Therefore, the number of attaching / detaching of the belts 96 and 107 when attaching / detaching the threshing device 10 can be suppressed, and the maintenance property can be improved.

According to the combine 1 of the embodiment, since the third belt 116 is disposed nearer the grain tank 8 than the second belt 107, the third belt 116 is separated during maintenance The second belt 107 can be separated. Therefore, the number of attaching and detaching of the belts 107, 116 when attaching and detaching the cutting apparatus 5 can be suppressed, and the maintenance property can be improved.

According to the combine 1 of the embodiment, the threshing front frame 23 is provided with two plate members 26 which are connected to each other in the longitudinal direction by connecting the vertical frames 25, Since the support metal 115 is connected to the plate member 26, the mechanical strength of the threshing front frame 23 can be improved.

According to the combine 1 of the embodiment, since the first roller supporting piece 99, which rotatably supports the first tension roller 98 at the tip end portion thereof, is attached to the threshing front frame 23, The rigidity of the first tension support portion 100 for attaching the roller support piece 99 to the threshing front frame 23 can be improved and the first tension roller 98 can reliably tension the first belt 96 .

Further, according to the combine 1 of the embodiment, the first tension roller 100 can be easily attached and detached, so that the inclination and deviation of the first tension roller 98 can be easily corrected.

According to the combine 1 of the embodiment, since the first tension receiving portion 101 for biasing the first roller supporting piece 99 is attached to the discriminating portion 6, And the first tension roller 98 can reliably apply a tension to the first belt 96. In addition,

According to the combine 1 of the embodiment, the pivot pin 111 constituting the rotation center of the second roller supporting piece 110, which rotatably supports the second tension roller 109 at the tip end, The stiffness of the portion where the second roller supporting piece 110 is attached to the central horizontal frame 21 can be improved and the strength of the second tension roller 109 It is possible to reliably apply tension to the second belt 107.

According to the combine 1 of the embodiment, the second tension receiving portion 112 for biasing the second roller supporting piece 110 is attached to the central horizontal frame 21 provided on the side portion of the sorting portion 6 The rigidity of the second tension receiving portion 112 can be improved and the second tension roller 109 can reliably apply tension to the second belt 107. [

According to the combine 1 of the embodiment, the pivot pin 120 constituting the rotation center of the third roller supporting piece 119, which rotatably supports the third tension roller 118 at the front end portion, The third tension roller 118 can reliably apply a tension to the third belt 116. In this case,

According to the combine 1 of the embodiment, since the third tension receiving portion 121 for biasing the third roller supporting piece 119 is attached to the gear box 105, the third tension receiving portion 121, And the third tension roller 118 can reliably apply a tension to the third belt 116. As a result,

According to the combine 1 of the embodiment, since the loose pulley 123 contacting the second belt is provided on the rotating shaft 114 of the third pulley 93, the tension value of the second tension roller 109 .

Further, according to the combine 1 of the embodiment, since the loose pulley 123 is a lining type loose pulley 123, even if the second belt 107 is extended to interfere with the lining type loose pulley 123, It becomes possible.

According to the combine 1 of the embodiment, the locus L of the second tension roller 109 when the second roller supporting piece 110 is rotated is set to a locus that does not overlap the lining pulley 123 The tension value of the second tension roller 109 can be maximized.

According to the combine 1 of the embodiment, the bearing 124 for rotatably supporting the lining pulley 123 is installed at both ends of the lining pulley 123 in the direction of the rotating shaft 114 Therefore, the size of the bearing 124 can be reduced, and the cost can be reduced.

The combine according to the embodiment of the present invention described above is not limited to the above-described embodiment, and various changes can be made within the scope of the claims.

3: Engine 5: Cutting device
6: selection unit 7:
8: Grain tank 9: Power transmission device
10: threshing device 23: threshing front frame
26: plate member 56: conveying device
73: emergency 91: first pulley (first rotary member)
92: second pulley (second rotating member) 93: third pulley (third rotating member)
94: support member (second support member) 96: first belt
98: first tension roller 99: first roller supporting piece
100: first tension support portion 107: second belt
115: support metal (first support member) 116: third belt
K: space

Claims (9)

A cutting device 5 installed on the front portion of the base,
A trolley (10) provided at left and right sides of the grain tank (8) and having a lower sorting portion (6) and a top threshing portion (7)
And a power transmission device (9) provided at a front portion of the threshing device (10) and transmitting the driving force of the engine (3) to the cutting device (5) and the threshing device (10)
A threshing front frame 23 disposed forward of the threshing apparatus 10 and narrower in width than the threshing apparatus 10 and disposed biased to the left of the front end of the threshing apparatus 10 and,
In the power transmission device 9,
A first rotary member 91 driven to rotate by the driving force of the engine 3 to supply a driving force to the sorting unit 6,
A second rotary member 92 that is rotationally driven by the transmission of a driving force from the first rotary member 91 and supplies driving force to the threshing portion 7,
And a third rotary member (93) rotationally driven by the transmission of the driving force from the second rotary member (92) and supplying a driving force to the cutting device (5)
The first rotary member 91 is installed at the rear of the threshing front frame 23,
And a first support member (115) for rotatably supporting the third rotary member (93) is installed in front of the threshing front frame (23). The method according to claim 1,
The second rotary member 92 is provided above the first rotary member 91 and is driven by the driving force transmitted from the first rotary member 91 to the tilting portion 7 ) Is rotationally driven,
The third rotary member 93 is provided between the first rotary member 91 and the second rotary member 92 in the vertical direction and is rotated by the transmission of the driving force from the second rotary member 92 And the conveying device (56) provided in the cutting device (5) is driven. delete The method according to claim 1,
The first rotary member 91, the second rotary member 92 and the third rotary member 93 are disposed in a space K formed between the threshing front frame 23 and the grain tank 8 And a combine. 5. The method of claim 4,
A first belt 96 for linking the engine 3 and the first rotary member 91 to the second belt 107 for interlocking the first rotary member 91 and the second rotary member 92, Is disposed in a portion near the grain tank (8). 6. The method of claim 5,
And a third belt 116 for interlocking the second rotary member 92 and the third rotary member 93 is disposed at a portion closer to the grain tank 8 than the second belt 107. [ The Combine. The method according to claim 6,
The threshing front frame 23 is structured such that two plate members 26 are arranged at an interval in front and rear,
And a second support member (94) for rotatably supporting the first rotary member (91) and the first support member (115) are connected to the plate member (26). 8. The method of claim 7,
A first tension roller 98 for applying a tension to the first belt 96 is supported on the leading end of the first roller supporting piece 99,
And a proximal end portion of the first roller supporting piece (99) is rotatably attached to the threshing front frame (23). 9. The method of claim 8,
The base end portion of the first roller supporting piece 99 is rotatably attached to the first tension supporting portion 100 and the first tension supporting portion 100 is detachably attached to the threshing front frame 23 Combine with.

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