JPH0728826Y2 - Combine harvester - Google Patents

Description

[Detailed Description of the Invention] "Industrial field of application" The present invention relates to a combine harvesting device for threshing a grain culm harvested in a harvesting section in a threshing section.

[Prior Art] Conventionally, there has been a technique in which a cutting frame for attaching a grain culm raising member and a cutting member is movably provided to the left and right on the tip side of the cutting connection pipe for supporting the base end on the cutting rotation fulcrum shaft.

[Problems to be solved by the invention] However, in the above-mentioned conventional technique, the fixed supporting member and the movable supporting member of the mowing frame are held by the supporting case integrally connected to the tip surface of the mowing connecting pipe. All the load on the side is received by the joint between the connecting pipe and the support case, and there is a problem in terms of strength such that it is extremely weak against swinging in the left-right direction.

[Means for Solving the Problem] Therefore, the present invention is a combine harvester, in which a harvesting frame for attaching a grain culm raising member and a harvesting member is provided so as to be movable left and right with respect to the machine body. A first fixing support member for penetrating and fixing to the tip of the cutting connection pipe that supports the first fixing support member and a second fixing support member provided in parallel with the first fixing support member and having a front opening shape at the tip of the connection pipe; (2) The cutting frame is held by the two fixed support members so as to be slidable left and right, and both ends of a transverse feed member that is slidably inserted in the first fixed support member and supported are connected to the cutting frame.

[Operation] Therefore, since the traverse member that is fixed to the mowing frame is held by the mowing connection pipe via the first fixing support member, the first fixing support member that can be elongated in the left-right direction can apply a load on the cutting frame side. All can be received by the connecting pipe,
Since the second fixed support member guides the mowing frame to slide left and right, the parallelism between the mowing frame and the first fixed support member can be reliably retained, and the strength of the mowing frame support structure and the left-right movement performance are improved compared to the conventional case. Can be easily achieved.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings. First
The drawing is a plan view of the mowing unit, FIG. 2 is an overall side view of the combine, and FIG. 3 is the same plan view. In the drawing, (1) is a track frame on which a traveling crawler (2) is mounted, (3) Is a machine base fixedly supported on the track frame (1), and (4) is provided with a feed chain (5) stretched to the left side and provided with a handling barrel (6), a rocking sorter (7), a karako (8), etc. Threshing Department, (9)
Is a mowing unit for two rows, which is provided with a cutting blade and a grain culm transport mechanism,
(10) is a straw cutter that faces the end of the straw chain (11) connected to the end of the feed chain (5), and (12)
Is an engine for driving each part of the combine, (13) is a paddy tank for storing grains taken out from the threshing part (4) by facing the fried cylinder (14), (15) is a driver's seat (16) and driving operation It is a driver's cab provided with a part (17), and the reaping part (9) during traveling.
Continuously mow grain culms with this grain culm and threshing part (4)
It is configured to perform threshing processing with.

As shown in FIGS. 1 and 4, the reaping section (9) is a grain culm raising member having raising tines (19) for raising uncut grain culms to be taken in through the sward plate (18). The raising case (20), the left and right star wheels (21) and the left and right sweeping belts (22) for scratching the culm side and the tip side of the raised culm, and the culm side is cut during the scraping. A cutting blade (23) which is a mowing member, the foil (21) and a belt (22)
Vertical transfer chain (24) and upper part which are grain culm carriers that convey and inherit the culm side and the tip side of the two-row cut grain culm that joins the scraping side of the feed chain to the feed start end of the feed chain (5). A quadrangle cross section that is a cutting transmission chain case that is provided with a tip transport tine (25), and has a cutting support fulcrum shaft (27) (28) on a pedestal (26) standingly fixed to the front end of the machine base (3). Supporting the base end of the harvesting connecting pipe (29) and extending and retracting the cylinder (30) by interposing a harvesting lifting cylinder (30) between the connecting pipe (29) and the track frame (1). The reaper section (9) is moved up and down.

In addition, the mowing frame (3
1), the grass plate (18) is attached to the tip of the mowing frame (31), and the cutting blade (23) is attached via the receiving plate (32). 3
3) The cutting frame (31) is integrally connected through the bracket (36) to the left and right mowing cases (35), which are conductive gear cases for vertically raising and fixing the pipes (34) to the rear of both sides.
The upper side of the raising case (20) that supports the lower side via the support pipe (37) on the upper side of the raising pipe (34) is supported by the raising pipe (34) on the left side, and the base end is located in the middle of the raising pipe (34) on the left side. The drive side left star wheel (21) and the left sweep belt (22) are supported at the tip of the sweep drive case (38) to be supported, and the sweep support frame is supported at the middle of the right raising pipe (34) to support the base end. (39) A receiving cylinder (41), which is a parallel fixed support member integrally supporting the right star wheel (21) and the right sweeping belt (22) on the driven side of the tip, and integrally connected to the tip of the connecting pipe (29), and Guide frame with U-shaped cross section (42)
Is horizontally fixed, and the base end horizontal frame (33) is slidably supported left and right on the tip of the connecting pipe (29) through the guide frame (42), and is inserted and supported by the receiving cylinder (41). The cutting case (35) is rotatably supported by both ends of a cutting horizontal feed shaft (44), which is a lateral feed member that reciprocates left and right by rotating the electric motor (43) forward and backward. The horizontal feed shaft (44), which also serves as a support for (2), slides the mowing frame (31) left and right, and the mowing section (9) is provided in the substantially center front between the left and right traveling crawlers (2) (2). It is arranged to perform the middle splitting work and also to arrange the reaper (9) on the outer side of the left crawler (2) to perform the ridge cutting work.

As is clear from the above, the combine harvester is provided with a harvesting frame (31) for mounting the raising case (20) which is a grain culm raising member and the cutting blade (23) which is a harvesting member so as to be movable left and right with respect to the machine body. At reaping rotation fulcrum shaft (27)
A receiving tube (41) which is a first fixed support member fixed to the tip of the cutting connection pipe (29) for supporting the base end of the (28),
A guide frame (42) that is a second fixed support member that is provided in parallel with the receiving tube (41) and has a front opening shape is provided at the tip of the connecting pipe (29), and the cutting frame (42) is provided in the guide frame (42). 31) is slidable left and right, and
Both ends of the mowing horizontal feed shaft (44), which is a lateral feed member that is slidably inserted in and supported by the receiving tube (41), and the mowing frame (31).
The horizontal feed shaft (44) fixed to the mowing frame (31) is held by the mowing connecting pipe (29) through the receiving tube (41), and the mowing frame (31) is made by the guide frame (42). ) Is configured to slide horizontally.

Further, the reaping input shaft (45) inserted into the left fulcrum shaft (27) and the tip of the connecting pipe (29) are horizontally and slidably mounted on the tip of the connecting pipe (29) so that the reaping input case can be slid from both ends. (3
5) A reaping drive shaft (46) having a hexagonal cross section for distributing and transmitting power to each part of the reaper (9) via a sprocket (45) (46) in the connecting pipe (29). 47) (4
8) The reaper drive chain (49) stretched over the sprocket (4) connects the reaper drive force transmitted to the reaper input shaft (45) on the threshing machine side through the reaper input pulley (50).
7) (48) and the chain (49) are configured to conduct the inside of the connecting pipe (29) and transmit it to the cutting section (9).

As shown in FIGS. 5 to 7, the mowing rotation fulcrum shafts (27) and (28) which are divided into left and right parts are provided with the mowing input shaft (45) and the mowing Input pulley (5
0) and the safety clutch (51) provided between the input shaft (45) and the pulley (50) are assembled, while the cutting input support shaft (52) is inserted into the right rotation support shaft (28). At the same time, a handling depth fulcrum case (56) for supporting the feed end side of the vertical transport chain (24) and the upper tip transport tine (25) via these drive sprockets (53) (54) and the same drive shaft (55). ) Is provided, the fulcrum case (56) is rotatably supported on the left end of the left fulcrum fulcrum shaft (28), and the drive shaft (55) is paired with the input support shaft (52) to form a bevel gear (57). ) (58)
The cutting rotation fulcrum shafts (27) and (28) are divided into blocks and divided into a cutting drive input portion and a grain culm transporting drive supporting portion.

Then, the flanges (59) (60) at the ends of the rotary fulcrum shafts (27) (28) are opposed to and joined to both sides of the base end of the connecting pipe (24), and the respective flanges (59) (60) are joined. The spacers (61) and the bolts (62) are integrally connected to each other, and the base ends of the connecting pipes (29) are sandwiched therebetween, and the rotation fulcrum shafts (27) and (28) are fastened and fixed on the same axis from both sides. At the same time, the rotary fulcrum shafts (27) and (28) are slidably connected in the tensioning direction of the chain (49) through the tension adjusting slots (63) and (64) of the cutting drive chain (49). Tighten and fix both ends of the pipe (29). The output side sprocket () of the chain (49) is formed by the output side end of the reaping input shaft (45) and the input side end of the reaping input support shaft (52) which are projected to the inside of the base end of the connecting pipe (29). 47) is rotatably supported by the sprocket (47)
The reaping input shaft (45), the reaping input support shaft (52), and the chain (49) are interlockingly connected by. Further, the base end opening of the connecting pipe (29) is opened and closed via the cover plate (65) so that the chain (49) and the sprocket (47) are assembled and the chain (49) is stretched above and below. Synthetic resin chain guide plate (66) that doubles as noise prevention
Insertion and tensioning of (67) are performed from the base end opening of the connecting pipe (29) which is opened through the cover plate (65), and a leaf spring-like chain tension () is provided on the loose side of the chain (49). 68) is provided, and one end of the chain tension (68) is attached to a pin (70) fixed to the inner surface side of the lid plate (65) via a pair of left and right brackets (69) (69), and the chain tension (68) is fixed. ) Is disposed on the side where the chain guide plate (67) is arranged, and the center portion of the chain guide plate (67) is cut from the end portion on the base end side of the connecting pipe (29) by a predetermined width and a predetermined length to prevent the lateral displacement prevention groove (71) of the chain tension (68). ) Is formed,
The chain plate (68) is configured to be attached / detached via the lateral displacement prevention groove (71) by attaching / detaching the lid plate (65).

In the figure, (72) is a connecting pipe (29) and this pipe (2
A rubber pad which is interposed between the rotary fulcrum shafts (27) and (28) and the cover plate (65) to be joined to 9) so as to properly and closely join them, and to prevent misalignment and seal.
Reference numeral (73) is a guide roller of the chain (49) which is rotatably supported on the inner middle portion of the connecting pipe (29) via a shaft (74).

As shown in FIG. 8 and FIG. 9, the spectacle-shaped left and right bearing bodies (75) (76), which are positioning members, are integrally fixed to both ends of the connecting pipe (29), and the upper side of each bearing body (75) is fixed. Both ends of the boss (76) of the sprocket (48) on the input side of the chain (49) are rotatably supported by bearings (77) in the opening, and the drive shaft (46) is provided in a hexagonal inner hole of the boss (76). Is slidably supported right and left so that only rotation is transmitted to the drive shaft (46) without exerting a tensile force in the radial direction by the chain (48), and the bearing body (75) Between the boss (76) and the boss (76) and the drive shaft (4
The seal members (78) and (79) between 6) are configured so that they can be used as those having independent functions (rotation / slide).

Further, in the lower opening of the bearing member (75), the receiving cylinder (4
1) is press-fitted and fixed, the positional relationship between the receiving cylinder (41) and the drive shaft (46) is determined by the bearing member (75), and the parallelism therebetween is maintained.

Further, an integrally fixed fixing flange (80) is provided at the left end of the receiving tube (41), and a screw-in type detachable flange (81) is provided at the right end, and a bracket (82) is provided on the front side from the fixing flange (80). ) Is integrally fixed and protruded, the left end of the guide frame (42) is integrally fixed to the bracket (82), and the bracket (82) is integrally bent at the tip of the connecting pipe (29) to be bent into an L shape. The cover plate (83) and the bracket (84) integrally fixed in the middle of the guide frame (42) are integrally connected via a bolt (85), and the receiving cylinder (41) and the detachable flange (81) are further connected. Bolts from above and below at the joints of (86)
A pair of upper and lower tightening metal fittings (87) to prevent loosening
And a bracket (88) integrally fixed to the upper fitting (87) and a bracket (89) integrally fixed to the right end of the guide frame (42) are integrally connected via a bolt (90), The guide frame (42) is integrally connected in parallel to the outside of the tip of the connecting pipe (29) to the receiving tube (41) which is horizontally fixed to the tip of the connecting pipe (29). The frame (42) and the bearing member (75) allow the lateral feed shaft (44), the base end lateral frame (33) of the mowing frame (31), and the drive shaft (46) to be held in parallel and slid to the left and right. At the same time, all the load of the reaper (9) is directly received by the connecting pipe (29).

In the figure, (91) and (92) are left and right outermost brackets (8) that integrally connect the receiving tube (41) and the guide frame (42).
2) Adjust bolt (93) from (88) toward the outside of the machine.
The left and right sliding stoppers of the mowing frame (31) are fixed by protruding through the (94).

As shown in FIGS. 8 and 10, a metal or synthetic resin sleeve (96) forming a spiral thread groove (95) is provided on the inner peripheral surface, and the detachable flange (81) is removed. After inserting the sleeve (96) from the right end of the receiving cylinder (41) to this inner surface, the detachable flange (81) is screwed into the receiving cylinder (41) to form on the inner end surface of the fixing flange (80). The other mating surface (96a) formed on the left end surface of the sleeve (96) is pressed against the mating surface (80a) of the
6) is inserted and fixed between the flanges (80) and (81) on the inner surface of the receiving tube (41) to prevent the sleeve (96) from rotating with the transverse feed shaft (44) to be inserted on the inner surface. There is.

A plurality of steel balls (97), which are protrusions, are provided on the transverse feed shaft (44) along the leads of the screw groove (95), and the steel balls (97) are hemispherical recesses (98). Embedded in the wall thickness of the lateral feed shaft (44) and fixed in position, and approximately half of the steel ball (97) protruding from the outer peripheral surface of the lateral feed shaft (44) is fitted into the screw groove (95). The lateral feed shaft (44) is reciprocally moved (slide) to the left and right with respect to the receiving cylinder (41) by rotating the lateral feed shaft (44) forward and backward by the electric motor (43).

In the figure, (99) is each flange (80) (8
1) and the lateral feed shaft (41), and the sleeve (96) is hermetically inserted between the receiving tube (41) and the lateral feed shaft (41).

As shown in FIG. 11, a sprocket shaft (100) is integrally connected to the left end of the transverse feed shaft (41), and the sprocket shaft (100) is bearing (101) in the left reaping case (35).
And a lateral feed drive case (10) integrally supporting the motor shaft (102) and the sprocket shaft (100) of the electric motor (43) in the cutting case (35).
In 3), bevel gear (104) (105) interlocking connection,
Further, the left end of the drive shaft (46) is rotatably supported by the same left reaping case (35) via a bearing (106), and the left uplift drive shaft is inserted into the left uplift pipe (34). (107) and drive shaft (46) to the mowing case (35)
Internally linked via bevel gears (108) (109).

The left stopper (91) is the mowing frame (3
1) Move to the right end position at the left end of the mowing case (35)
It is abutted against and regulates its movement.

As shown in FIG. 12, the right end of the transverse feed shaft (41) is rotatably supported by the right cutting case (35) through a bearing (110), and the right end of the drive shaft (46) is the same. The reaping case (35) on the right side is rotatably supported via a bearing (111), and the right raising drive shaft (112) and the driving shaft (46) inserted into the right raising pipe (34) are reaped. The case (35) is interlockingly connected via bevel gears (113) (114).

In addition, the stopper (92) on the right side is the mowing frame (3
1) Move to the left end position at the right end of the mowing case (35)
The bracket (36) is abutted to regulate the movement.

As shown in FIGS. 13 and 14, the cutting case (35) on the left side.
An eccentric shaft (116) that rotatably supports the base end of the mowing crank rod (115) is provided on the raising drive shaft (107) that projects to the lower surface, and the left raising drive shaft (1
07) and the eccentric shaft (116) are inserted into and supported by the same cam body (117) in parallel and key-fitted, and at the same time, the shafts (107) (11)
6) The engaging groove (118) (119) is formed at the same height position on the outer circumference of the end, and the through hole (120) is formed between the shafts (107) and (116) so as to be orthogonal to this axial direction. (117), the engaging grooves (118) (119) of the shafts (107) (116) are exposed in the through hole (120), and the shaft is inserted into the through hole (120). The tapered surface (123) of the wedge shaft body (122) which is tightened to the (117) via the nut (121) is engaged with the locking grooves (118) (119) of the shafts (107) (116). By doing so, each shaft (107) (116) from the cam body (117)
Of the crank rod (115) by restricting the withdrawal of the crankshaft to the left and rotating the eccentric shaft (116) around the drive shaft (107).
It is configured to swing back and forth, and to move back and forth from side to side.

As shown in FIG. 12, the cutting crank rod (11
The tip of 5) is rotatably connected to one end of a left and right swing arm (125) that is swingably supported by a support plate (124) that is integrally connected to the right cutting case (35), and the left and right swings Arm (1
The cutting blade (23) is reciprocally slid from the right side to the left and right via the 25).

As shown in FIG. 15, the transverse feed shaft (44) and the crank rod (115) are used as a protection member for the reaping drive shaft (46), and the drive shaft (46) and the rotation fulcrum shaft (27) ( 28)
The transverse feed shaft (44) is arranged on a connecting pipe (29) on the tip side of the drive shaft (46) on or below the line (I) connecting the shaft cores of the Connect the rod (115) to the pipe (29) below the mowing drive shaft (46).
The rotation fulcrum shaft (27) is arranged on the lower surface side, and these shafts (41) (44) (115) are arranged in a triangular shape in a side view so that the drive shaft (46) is located at the upper apex position. When the cutting section (9) is moved up and down around the (28), the transverse feed shaft (44) and the crank rod (115) are provided between the drive shaft (46) and the ground.
Are configured to intervene.

As shown in FIG. 16, of the vertical transfer chain (24) and the upper tip transfer tine (25) in which the feed end portion is supported by the rotation fulcrum shaft (28) through the handling depth fulcrum case (56). At the feed start end side, the cutting frame (3
1) Right pull-up pipe (34) and scraping support frame (3)
9) to be supported by the scraping support frame (3
9) A handle depth adjusting motor (128) supported by a bracket (127), and a lower end of the motor (128) is interlockingly connected to the motor (128) so that the upper end is raised to the right and the bearing body (129) is attached to the upper end of the pipe (34).
A vertical screw shaft (130) rotatably supported via a rod, a rod (132) integrally extending rearward from a nut body (131) screwed to the vertical screw shaft (130), and the rod (132). A sliding cylinder (134) provided with a vertically rotatable fulcrum bracket (133) slidably fitted and supported, and the vertical transfer chain (2) at the tip.
The front driven sprocket (135) of 4) is rotatably supported via the support shaft (136) to support the vertical rotation fulcrum bracket (13).
Vertical rotation arm (137) that rotatably supports the base end on 3)
Is provided in the handling depth adjusting mechanism (126), and the vertical screw shaft (130) is rotated forward and backward by the motor (128) to vertically move the rod (132) through the nut body (131). , The vertical transfer chain (24) together with the upper tip transfer tines (25), the grain culm transfer height on the feed start end side is adjusted around the rotation fulcrum shaft (28), and the mowing frame (31) When sliding left and right, the handling depth adjustment mechanism (126)
The vertical transport chain (24) is configured to move the feed start end side thereof to the left and right along with the upper tip transport tine (25).

The present embodiment is configured as described above, and the mowing unit (9) is located on the left side of the machine to perform normal mowing work so as not to step on the uncut culm by the left traveling crawler (2). During the splitting work, the mowing part (9) is moved to the right side of the machine to prevent the right running crawler (2) from stepping on the uncut culm, and during the ridge cutting work, the mowing part (9) is moved to the left side of the machine. It is moved to prevent the left running crawler (2) from riding on the ridge.

"Effects of the Invention" As is apparent from the above embodiments, the present invention is based on the cutting frame (3) for mounting the grain culm raising member (20) and the cutting member (23).
In a combine harvesting device in which 1) is movable left and right with respect to the machine body, a first fixing in which the harvesting connecting pipe (29) supporting the base end of the harvesting rotation fulcrum shafts (27) (28) is fixed through the tip of the harvesting connecting pipe (29). The second fixed support is provided with a support member (41) and a second fixed support member (42) provided at the tip of the connecting pipe (29) in parallel with the first fixed support member (41) and having a front opening shape. The cutting frame (31) is held by the member (42) so that the cutting frame (31) can slide left and right, and both ends of the transverse feeding member (44) that is inserted and supported by the first fixed support member (41) so as to slide left and right and the cutting frame. (31) is connected, and the mowing frame (3
The transverse feed member (44) to be fixed to 1) is attached to the cutting connection pipe (2).
Since the first fixed support member (41) is held by the first fixed support member (41), the first fixed support member (4) can be formed to be long in the left-right direction.
By 1), all the load on the mowing frame (31) side can be received by the connecting pipe (29), and the second fixing support member (42) guides the mowing frame (31) to the left and right. 31) and the first fixed support member (41)
The degree of parallelism can be reliably maintained, and the strength of the mowing frame support structure and the lateral movement performance can be easily improved as compared with the conventional case.

[Brief description of drawings]

FIG. 1 is a plan view of the mowing section, FIG. 2 is an overall side view of the combine, FIG. 3 is a plan view of the combine, FIG. 4 is a side view of the mowing section, and FIG. 5 is a sectional plane view of the mowing input section. Fig. 6 is a front view of the same cross section, Fig. 7 is a side view of the same cross section, Fig. 8 is a cross sectional plan view of the right and left reaping moving section, Fig. 9 is a side view of the same, and Fig. 10 is a lateral feed shaft. Sectional view, Fig. 11 is a sectional plan view of the left mowing case,
FIG. 12 is a sectional plan view of the right mowing case, FIG. 13 is an explanatory view of mounting the mowing crank rod, FIG. 14 is a sectional view of the cam body, and FIG.
FIG. 15 is a side view of the mowing drive shaft portion, and FIG. 16 is a support view of the grain culm carrier. (20)… Grain culm raising case (grain culm raising member) (23)… Mowing blade (mowing member) (27) (28)… Mowing rotation fulcrum shaft (29)… Mowing connecting pipe (31)… Mowing frame (41) ... Receiving tube (first fixed support member) (42) ... Guide frame (second fixed support member) (44) ... Mowing lateral feed shaft (lateral feed member)

Claims (1)

[Scope of utility model registration request] Claims: 1. A combine harvesting device in which a harvesting frame (31) for attaching a grain culm raising member (20) and a harvesting member (23) is provided so as to be movable left and right with respect to the machine body. 28) The cutting connection pipe (2
9) First fixed support member (41) fixed to the tip through.
And the first fixed support member (4) at the tip of the connecting pipe (29).
And a second fixed support member (42) provided in parallel with 1) and having a front opening shape. The second fixed support member (42) holds the mowing frame (31) so as to be slidable left and right,
A combine harvester, characterized in that both ends of a transverse feed member (44) slidably inserted into and supported by a first fixed support member (41) are connected to the harvest frame (31).