JP2006094870A - Device for operating combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the operability of fine regulation of the traveling direction for adjusting the row in a combine harvester. <P>SOLUTION: A main speed-changing lever (54) is arranged in a left side column of an operator's seat (20), and a circular steering wheel (77) is arranged in a driving operation part (19) at the front side of the driver's seat (20). A switch stand (119) is installed in the right inner side of the circular outer periphery of the steering wheel (77), and a switch (122) operable by a finger tip as a steering means for fine regulation, for carrying out the fine regulation in the traveling direction for adjusting the row is installed in the switch stand (119). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a combine operating device.

Conventionally, various operation switches such as a depth control switch for adjusting the depth of operation and a cutting lift switch for lifting and lowering the cut are usually placed at the left side of the driver's seat where the various operation control levers such as the main shift lever and the sub shift lever are arranged. It is provided and these operations are performed with the left hand (for example, refer to Patent Document 1).
Japanese Utility Model Publication No. 7-39337

  However, since the operation frequency is high, there is an inconvenience of lack of work compatibility such as an operation delay in the switch operation.

  Here, in the present invention, the main shift lever is disposed on the left side column of the driver's seat, and the round steering handle is disposed in the driving operation portion in front of the driver's seat, A switch base is provided on the right inner side of the outer periphery of the shape, and a switch that can be operated with a fingertip is provided on the switch base as a fine adjustment steering means for fine adjustment of the course direction for alignment. The present invention provides a combine operating device.

  According to the present invention, for example, while the steering handle is operated with the right hand, the switch of the switch base provided on the right inner side of the round outer periphery of the steering handle is operated to facilitate fine adjustment of the course direction for alignment. Therefore, alignment can be easily performed by the switch, and workability can be improved.

  In particular, on the left hand side where the number of levers is often set and the operation frequency is high, a switch as a steering means for fine adjustment is provided on the right hand side where only the handle is operated, and the switch is connected to the right inside of the round outer periphery of the steering handle Therefore, it is possible to perform a quick and accurate operation without a delay in the operation of the switch as the fine adjustment steering means that is frequently operated.

  Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory side view of the swing sorting portion, FIG. 2 is an overall side view of the combine, FIG. 3 is a plan view thereof, in which (1) is a track frame on which a traveling crawler (2) is installed; ) Is a machine base installed on the track frame (1), and (4) is a threshing machine that has a feed chain (5) stretched to the left and incorporates a handling cylinder (6) and a processing cylinder (7). (8) is a cutting part provided with a cutting blade (9) and a grain conveying mechanism (10), (11) is a hydraulic cylinder for raising and lowering the cutting part (8) via a cutting frame (12), (13 ) Is a waste processing section that faces the end of the waste chain (14), (15) is a grain tank that carries the grain from the threshing section (4) through the milling cylinder (16), A discharge auger for unloading the grain of the tank (15), (18) is a driving operation part (19) and a driver seat (20 Driving cabin comprising, it is configured to threshing harvests (21) the driver cabin (18) an engine provided below, continuously culms.

  As shown in FIG. 4, the transmission case (22) for driving the travel crawler (2) is a main transmission mechanism comprising a pair of first hydraulic pump (23) and first hydraulic motor (24). A hydraulic continuously variable transmission mechanism (25) and a turning hydraulic continuously variable transmission mechanism (28) which is a steering mechanism including a pair of second hydraulic pump (26) and a second hydraulic motor (27). An input shaft (23a) of the first hydraulic pump (23) is linked to the output shaft (21a) of the engine (21) via a transmission belt (29), and the input shaft of the second hydraulic pump (26) (26a) is linked to the input shaft (23a) of the first hydraulic pump (23) via a transmission belt (30).

  The drive wheel (34) of the traveling crawler (2) is interlockedly connected to the output shaft (31) of the first hydraulic motor (24) via the subtransmission mechanism (32) and the differential mechanism (33). The differential mechanism (33) has a pair of symmetrical planetary gear mechanisms (35) and (35), each planetary gear mechanism (35) includes one sun gear (36) and the sun gear (36). It is formed by three planetary gears (37) meshing with the outer periphery and a ring gear (38) meshing with these planetary gears (37).

  The planetary gear (37) is rotatably supported by the carrier (41) of the carrier shaft (40) coaxial with the sun gear shaft (39), and the left and right sun gears (36) (36) are sandwiched between the left and right sun gears (36) (36). The ring gear (38) has inner teeth that mesh with the planetary gears (37) and is arranged on the same axis as the sun gear shaft (39). The carrier shaft (40) is rotatably supported.

  The traveling hydraulic continuously variable transmission mechanism (25) performs forward / reverse rotation and rotation speed control of the first hydraulic motor (24) by adjusting and changing the angle of the rotary swash plate of the first hydraulic pump (23). Thus, the rotational output of the first hydraulic motor (24) is transmitted from the transmission gear (42) of the output shaft (31) via the gears (43) (44) (45) constituting the auxiliary transmission mechanism (32) to the sun gear. The sun gear (41) is rotated by being transmitted to the center gear (46) fixed to the shaft (39). The gear (45) is attached to a brake shaft (47) having a brake mechanism, and a PTO input gear (49) of a PTO shaft (48) for transmitting rotational force to a work machine or the like is attached to the gear (43). Meshing.

  The driving force from the first hydraulic motor (24) transmitted to the sun gear shaft (39) via the center gear (46) is transmitted to the carrier shaft (40) via the left and right planetary gear mechanisms (35). The rotation transmitted to the carrier shaft (40) is transmitted to the left and right wheel shafts (34a) of the left and right drive wheels (34) via a pair of left and right reduction gears (50) and (51), respectively.

  Further, the turning hydraulic continuously variable transmission mechanism (28) controls the forward and reverse rotation of the second hydraulic motor (27) and the rotational speed by adjusting the angle change of the rotary swash plate of the second hydraulic pump (26). Thus, the rotational output transmitted from the second hydraulic motor (27) to the transmission gears (52a) and (52b) of the output shaft (52) can be directly applied to the outer teeth of the left ring gear (38) and The external gear of the right ring gear (38) is transmitted via the reverse gear (53a) of the reverse shaft (53), and the left and right ring gears (38) rotate in the same direction when the second hydraulic motor (27) rotates forward. The left gear (38) is reversely rotated by the number, and the right gear (38) is normally rotated.

  Thus, when the driving of the first hydraulic pump (23) for driving is performed in a state where the driving of the second hydraulic pump (26) for turning is stopped and the left and right ring gears (38) are stationary and fixed, The rotational output from the hydraulic motor (24) is transmitted from the center gear (47) to the left and right sun gears (36) at the same rotational speed, and the planetary gear (37), carrier (41) and reduction gear ( 50), the left and right wheel shafts (34a) are transmitted to the left and right wheel shafts (34a) at the same rotational speed in the same direction of left and right, and the vehicle body travels straight forward and backward. On the other hand, when the second hydraulic pump (26) for rotation is driven to rotate in the forward and reverse directions with the driving of the first hydraulic pump (23) for traveling stopped and the left and right sun gears (36) stationary and fixed, The planetary gear mechanism (35) rotates in the reverse or forward direction, and the right planetary gear mechanism rotates in the forward or reverse direction so that the driving direction of the left and right traveling crawler (2) is reversed in the front-rear direction. This is what makes you spin-turn.

  In addition, when the first hydraulic pump (23) for driving is driven and the second hydraulic pump (26) for turning is driven to turn the body left and right, turning with a large turning radius can be enabled. Thus, the turning radius is determined according to the speed of the left and right traveling crawler (2).

  As shown in FIGS. 5 to 8, a main transmission lever (54) connected to a traveling hydraulic continuously variable transmission mechanism (25) and a main clutch pedal (55) are connected via a main transmission neutral return mechanism (56). The main transmission lever (54) has a transmission operation plate (58) fixed to a base end boss (57), and the operation plate (58) is rotatable about a lever shaft (59). And the two forward and reverse wires (60) and (61) fixed to the operation plate (58) are connected to the continuously variable transmission mechanism (62) via the shift and turning operation mechanism (62) as output conversion means. 25).

  Then, an L-shaped restricting pin (63) is fixed to the operation plate (58), and a pair of upper and lower restricting plates constituting the neutral return mechanism (56) is formed at the tip of the restricting pin (63). The upper and lower restraint plates (64a) and (64b) are supported by the pivot shaft (65) so as to be rotatable, and the upper and lower restraint plates (64a) and (64b) When there is a constant opening angle (α) between the opposed inner side surfaces, the pin (63) is allowed to move up and down during the forward high-speed operation from the high-speed forward operation of the main transmission lever (54). .

  Further, a semicircular neutral positioning notch (66) and a notch long groove (67) engaged with the pin (63) are formed on the opposing inner side surfaces of the upper and lower restraining plates (64a) (64b). When the opening angle (α) of the restraint plates (64a) and (64b) is closed to approximately 0 °, the pin (63) is returned to the center position, and the main transmission lever (54) is returned to the neutral position. Yes.

  Further, the main clutch pedal (55) is linked to the parking brake mechanism (68) via a wire allowance (68a), and the clutch arm (69) of the main clutch pedal (55) and the upper restraining plate (64a) are connected. Are connected by a neutral return wire (70), one end side of the wire (70) is connected to the upper restraining plate (64a), and the other end side of the wire (70) is connected to the clutch arm (71) via a spring (71). 69), the outer receiver (72) at one end of the outer tube (70a) of the wire (70) is connected to the lower restraint plate (64b), and the outer receiver (73) at the other end of the outer tube (70a) is connected. Attached to the pedal pedestal (74) of the pedal (55), when the pedal (55) is depressed (when the main clutch is disengaged), the opening angle (α) of the upper and lower restraint plates (64a) (64b) is approximately 0 °. To It is configured as follows.

  During the closing operation of the upper and lower restraining plates (64a) and (64b), the neutral positioning pin (75) connected to the machine side frame and the notch (66) are engaged to move the upper and lower restraint plates (64a) and (64b). Even if there is a difference in the closing operation or the closing amount between the restraining plates (64a) and (64b), it is possible to reliably return to the neutral position. Reference numeral (76) denotes a transmission motor for automatic travel control.

  As shown in FIGS. 9 to 13, the operation mechanism (62) formed as a single component is operated from the main steering lever (54) and a round steering handle (77) for turning the fuselage. The output is input, converted into the necessary movements, and output to the forced differential transmission case (22) composed of two pumps (23) (26) and two motors (24) (27). The main transmission lever (54) and the steering handle (77) and the control levers (78) and (79) of the continuously variable transmission mechanisms (25) and (28) for turning and turning are provided. The operation mechanism (62) is interposed therebetween.

  The operating mechanism (62) includes a component case (81) fixed to the upper part of the frame (80) on the machine side, and the case (81) rotatably supporting the left and right support shafts (82). A base (83), which is a gate-shaped base member, and a support shaft (82) outside the case (81) are fixed to connect the wires (60) (61) from the main transmission lever (54) up and down. A main shift and swing cam (87) which is a cam member rotatably supported by a main shift input arm (84) and vertical cam shafts (85) and (86) fixed to the left and right sides of the base (83). (88), a steering operation input arm (90) that is rotatably supported by an input arm shaft (89) fixed at substantially the center of the base (83), and fixed to the input arm (90). Steering arm of the handle (77) An input arm pin (93) for connecting the left and right swirl wires (92) from (91), and a fixed gear (94) for main shift and swiveling cams (87) (88) fixed to the input arm (90) ( 95) The swivel gears (96a) (96b) meshed with the main body boss (98a) and the horizontal shaft (97) pivotably supported at the lower part of the frame (80) are supported in a swingable manner. A shift driven cam (98), a swivel driven cam (99) in which a base boss (99a) is integrally connected to the horizontal shaft (97), the main shift and swivel cams (87) (88), and a driven cam (98) and (99) are fixedly mounted on a shift and swivel cam rod (101) (102) and upper bearing case (103) on the upper side of the transmission case (22). Can be rotated to the cylinder axis (104) An operation transmission shaft (105) to be supported, a swing arm (106) having a right end fixed to the boss (98a), and a swing arm (107) having a proximal end boss (107a) fixed to the transmission shaft (105). A variable speed first rod (108) for connecting the distal ends of each of the first and second ends via a universal joint (100), a swing arm (109) having a base end fixed to the horizontal shaft (97), and a transmission shaft (105). A pivoting first rod (111) for connecting the distal ends of a swing arm (110) to which a proximal boss (110a) is rotatably attached via a universal joint (100), and a proximal end to the transmission shaft (105) The rocking arm (112) for fixing the shaft and the distal end of the control lever (78) are connected to each other through the universal joint (100), and the base end is fixed to the boss (110a). The swing arm (114) to be installed and the A turning second rod (115) for connecting the tip ends of the control lever (79) via a universal joint (100), and operating each operating force of the main transmission lever (54) and the steering hand (77). The mechanism (62) is configured to convert the movement into necessary movements and transmit it to the control levers (78) and (79).

  The base (83) that changes the inclination angle around the support shaft (82) in accordance with the operation of the main transmission lever (54) is inclined at a certain angle before, after and at a predetermined angle when the main transmission is in the neutral position (a). Universal joints of the driven cams (98) (99) and the cam rods (101) (102) on the axis (b) downward extension line of the vertical cam shafts (85) (86) perpendicular to the base (83) (100) is disposed at the center, and the rod operating arm (87a) for connecting the cam rod (101) of the main transmission arm (87) is moved forward at right angles to the axis (c) of the support shaft (82). On the other hand, the rod operating arm (88a) connected to the cam rod (102) of the swiveling cam (88) is projected in the direction of the axis (c) of the support shaft (82). And universal joint (100) of rod (102) Align the center with the axis (c) of the support shaft (82), and rotate the cams (87) and (88) around the cam shafts (85) and (86) by operating the handle (77) at the neutral position of the main transmission. When moving, the distance between the cams (87) (88) and the driven cams (98) (99) is kept constant, and the neutrality of the control levers (78) (79) is maintained.

  On the other hand, when the base (83) is turned up and down around the support shaft (82) by the operation of the main speed change lever (54), the center of the universal joint (100) of the turning cam (88) and the cam rod (102) And the shaft of the support shaft (82) coincide with each other, so that the swivel driven cam (79) does not operate, and the main transmission cam (87) operates by the change in the inclination of the main transmission cam (87), and the main transmission control Only the lever (78) is operated to shift forward, reverse, low speed and high speed.

  Further, when the turning operation is performed by the handle (77) under the operation condition of the main speed change, the center of the universal joint (100) between the turning cam (88) and the cam rod (102) by the turning of the turning cam (88). Then, the driven cam (99) is operated by the misalignment of the axis of the support shaft (82), and the turning control lever (79) is operated to turn the aircraft left and right. When the main speed change cam (87) is rotated by the engagement of the gears (94) and (96a), the travel speed is low (when the main speed is the straight position of the handle (77), the lever (54) is operated. The main speed change cam (87) is controlled to the lower speed side as the steering angle of the handle (77) is increased, and a safe turning is performed. Further, in this case, the direction of turning when the aircraft is moving forward and backward can be made coincident, which is convenient without requiring a switching mechanism or the like as in the prior art.

  By the way, as shown in FIG. 13 to FIG. 14, the side column on the left side of the driver's seat (20) in the driving cabin (18) has the main transmission lever (54), the auxiliary transmission lever (116), the cutting clutch lever ( 117) The threshing clutch lever (118) is disposed, and the steering handle (77) is disposed in the driving operation portion (19) in front of the driver seat (20).

  The switch base (119) is fixed to the right inner side of the round outer periphery of the steering handle (77), and the handle depth adjustment of the handle depth adjusting mechanism that adjusts the handle depth of the cereal to be inserted into the threshing portion is adjusted. A switch (120) is provided on the switch base (119) so that the steering depth can be adjusted simultaneously while the steering handle (77) is rotated with the right hand. Thus, in the case of this configuration, the levers (54), (116), (117), and (118) are installed in large numbers, and the handle depth adjustment switch ( 120) can be provided to improve the operability.

  15 to 16 show a configuration example in which the steering handle (77) is provided with a cutting lift switch (121) for raising and lowering the cutting part (8), and the above-described handling depth adjustment switch (120) is shown. Instead, a cutting / lifting switch (121) is provided on the switch base (119) of the handle (77), and the lifting / lowering switch (121), which is frequently operated, is operated quickly and accurately without any delay in operation. Is configured to be possible.

  Further, FIG. 17 shows a configuration example in which a fitting steering switch (122) for performing fine adjustment in the course direction only with the fingertip is provided on the switch base (119) on the right side of the steering handle (77), and the right hand is held each time. There is no need to change the direction of the handle (77), and it is possible to easily finely adjust the direction in the alignment or the like, thereby improving the workability.

  18 and 19 are each provided with a constant cutting rotation mechanism (123) that drives the cutting part (8) at a constant speed at a high speed, and a push button type high-speed constant rotation switch (123) that operates the rotation mechanism (123). 124) is provided on the switch base (119) on the right side of the handle (77). The switch (124) is turned on only while it is pressed, and the cutting part (8) is rotated at a constant speed at a high speed. Turn the switch (124) on and turn the cutting part (8) at high speed at the lodging position, and release the switch (124) to return to the normal cutting rotation after passing the lying position to improve the workability of the cutting work. It is configured to improve. Also, in this case, the work of pouring the straw into the threshing portion at the end of cutting can be easily performed by a one-touch operation of the switch (124).

  The mowing constant rotation mechanism (123) is provided on the mowing output shaft (126) of the counter case (125). The mowing high speed clutch (127) is turned on by the high speed constant rotation switch (124), and the mowing low speed clutch. (128) is provided, and the cutting output shaft (126) is coupled to the cutting input shaft (131) via the one-way clutch (129) and the transmission belt (130), and the vehicle speed tuning output of the transmission case (22) is provided. When the cutting tension clutch (135) is cut off, the cutting input clutch (135) is cut off by linking the shaft (132) to the cutting input clutch (135) via the one-way clutch (133), the transmission belt (134) and the cutting tension clutch (135). One shaft (131) is driven by the low-speed output of the output shaft (125) and the tension clutch (135) is engaged. When the rotational speed of the vehicle speed tuning output shaft (132) is lower than the rotational speed of the cutting output shaft (126) in the low speed traveling state, the one shaft (131) is driven by the cutting output shaft (126), while the vehicle speed in the high speed traveling state is When the rotation speed of the tuning output shaft (132) is higher than the rotation speed of the cutting output shaft (126), one shaft (131) is driven by the vehicle speed tuning output shaft (132), and the cutting portion (8) is driven at a speed proportional to the traveling speed. ) Is driven.

  In the above-described embodiment, the configuration is shown in which each work switch (120) (121) (122) (124) is directly attached to the handle (77). These switches (120) (121) (122) (123) may be provided on the knob.

It is a plane explanatory view of an operation handle part. It is a whole side view of a combine. It is a whole top view of a combine. It is explanatory drawing of a mission drive system. It is explanatory drawing of the main transmission lever part. It is explanatory drawing of the main transmission neutral return mechanism part. It is explanatory drawing of the main transmission neutral return mechanism part. It is explanatory drawing of a restraint board part. It is front explanatory drawing of an operation mechanism part. It is side surface explanatory drawing of an operation mechanism part. It is explanatory drawing of the cam part for main transmissions. It is explanatory drawing of a base part. It is a plane explanatory view of a cam part. It is front explanatory drawing of a steering handle. It is a plane explanatory view of a steering handle part. It is side surface explanatory drawing of a steering handle. It is a plane explanatory view of a steering handle part. It is a plane explanatory view of a steering handle part. It is explanatory drawing of a mowing constant rotation mechanism.

Explanation of symbols

(77) Steering handle (120) (121) (122) (124) Switch

Claims (1)

  A main speed change lever (54) is arranged on the left side column of the driver's seat (20), and a round steering handle (77) is arranged in the driving operation portion (19) in front of the driver's seat (20). A switch base (119) is provided on the right inner side of the round outer periphery of the steering handle (77), and the switch base (119) is a switch (122) that can be operated with a fingertip. A combine operating device provided with a switch (122) as a fine adjustment steering means for performing a fine adjustment in the course direction.

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