JPH076756Y2 - Roll baler - Google Patents

Description

[Detailed Description of the Invention] "Industrial application field" The present invention picks up straw grass such as grass and straw scattered in a field by a pickup unit and forms it into a roll-shaped bale by upper and lower conveyors for bale formation. About the roll baler

[Prior Art] Conventionally, there has been a technique for forming a roll-shaped bale by a conveyor as disclosed in Japanese Utility Model Publication No. 58-139046 and Japanese Utility Model Publication No. 59-166639.

"Problems to be solved by the invention" In the prior art, since the conveyor is stretched by providing the tension roller, the conveyor easily undulates due to the unevenness of the bale peripheral surface, and mechanical vibration and noise are easily generated. There is a problem that the hardness and size of the bale are likely to be non-uniform as well as cannot be reduced.

"Means for Solving Problems" However, the present invention is directed to a roll baler for forming a bale by bundling straw grass picked up by the pickup section in the front part of the lower pipe conveyor between the upper and lower pipe conveyors in a roll shape. A chain guide for tensioning and supporting the endless chain of the upper pipe conveyor, and a rear part of the chain guide movably upward by a bale forming pressure with the front part of the chain guide as a fulcrum, and an upper pipe in the direction of the lower pipe conveyor. A spring for elastically supporting the conveyor is provided, and the spring is connected to the chain guide so that the elastic pressure can be adjusted.

[Operation] Accordingly, by supporting the upper pipe conveyor by stretching it on the chain guide, it is possible to prevent the conveyor from undulating, and since the elastically adjustable spring is connected to the upwardly movable chain guide, A veil having a substantially uniform size (weight) and a substantially uniform size (outer diameter) can be easily formed, and mechanical vibration, noise, etc. can be reduced and the veil can be made uniform as compared with the prior art.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

1 is an explanatory view of the bale forming portion, FIG. 2 is an overall side view,
FIG. 3 is a plan view of the same, in which (1) is a machine base having a traveling crawler (2), (3) is a baler unit mounted on the machine base (1), and (4) is the front of the baler unit. A pickup unit which is mounted so as to be able to move up and down and has a pickup guide plate (5); (6) an engine unit which is mounted behind the machine base (1) and internally mounts an engine (7); The operation panel (9) is arranged at the left and right center of the airframe behind the engine section (6).
(10) a bundling device internally provided behind the baler part (3), (11) a work clutch lever disposed on the left outside of the fuselage (3) behind the fuselage, (12) Is a pickup lifting handle for moving up and down the pickup section (4), (13) is a traveling clutch lever provided on the operation panel (9), (14) and (14) are left and right side clutch levers, and (15) is a shift clutch lever. is there.

In the baler part (3), curved upper and lower pipe conveyors (16) and (17) are arranged to face each other to form a bale forming chamber (18). The upper pipe conveyor (16) Upper and left upper endless chains (22) (22) are stretched between the drive sprocket (19) and idler (20) via the chain guide (21), and a plurality of these chains (22) (22) are evenly spaced. The bale-forming upper pipe (23) is laid horizontally. Further, the lower pipe conveyor (17) is provided with a chain guide (26) (27) and a tension between a drive sprocket (24) provided in the baler section (3) and an idle sprocket (25) provided in the pickup section (4). Left and right lower endless chains (2 via roller (28)
9) (29) is stretched, and a plurality of bale-forming lower pipes (30) ... Are horizontally stretched between these chains (29) (29) at equal intervals.

Further, a pickup rotation fulcrum shaft (31) is provided at the front end of the chain guide (27), and the fulcrum shaft (31) supports the pickup case (32) base end of the pickup section (4) so as to be vertically movable. At the same time, when the lower pipe conveyor (17) is driven, the idle sprocket (25) is supported at the front end of the case (32) via the support shaft (33) and the pickup finger (35) is supported via the eccentric shaft (34). The pickup fingers (35) are simultaneously rotated to pick up hay in the field and send it into the bale forming chamber (18). The hay fed into the bale forming chamber (18) is formed into a roll-shaped bale (A) by the rotation of the conveyors (16) and (17), and the bale (A) is formed by the bundling device (10). The outer periphery of the bale forming chamber (18) is bundled so that it can be taken out of the machine through a bale taking-out door (36) on the left side.

As shown in FIGS. 4 to 5, the left and right chain guides (21) (21) supporting the upper pipe conveyor (16) are swingable at their front ends to the drive shaft (37) of the drive sprocket (19). And the guides (21) (21) on the left and right fulcrum crossing links (39) (39) that are supported by the side plate (3a) of the baler part (3) and swingably pivotally supported by the pivotal fulcrum shaft (38). ) The rear end is supported via pins (40), (40), (41) and (41) and left and right fulcrum crossing springs (42) and (42). Also said shaft (38)
The base ends of the left and right swing links (43) (43) are fixed, and the tip ends of the swing links (43) (43) are inserted through the long holes (44) (44) and the connecting rods (45) (45). When the door (36) is interlocked and connected, and when the door (36) is opened, as shown in phantom line in FIG.
From the line (b) connecting the shaft (37) and the shaft (38), the spring (4
2) cross over the fulcrum and connect the link (39) to the upper control plate (4
It is provided so as to abut and lock with 6). Furthermore, guide holes (47) (47) for moving and guiding the pins (41) (41) are formed in the left and right side plates (3a) (3a), and fulcrums of the left and right links (39) (39) are provided. When crossing over, the pins (41) (41) are pulled upward by the force of the springs (42) (42) and the rear ends of the chain guides (21) (21) are centered around the shaft (37) at a constant angle (β). ) Upward movement or upper pipe conveyor (16)
Is configured to open upwards in conjunction with the opening of the door (36). Reference numeral (48) is a lower restriction plate that restricts the downward movement position of the link (39).

By the way, a spring pressure adjusting bolt (49), which is a bale pressure adjusting element, is provided between the pin (40) and the fulcrum overspring (42), and the spring pressure adjusting operation via the bolt (49) can be performed. Therefore, it is provided so that the bale pressure can be changed appropriately.

As is clear from the above, the straws picked up by the pickup section (4) at the front of the lower pipe conveyor (17) are bundled into a roll between the upper and lower pipe conveyors (16) (17) to form a bale (A). ) Forming a roll baler, a chain guide (21) for tensioning and supporting the endless chain (22) of the upper pipe conveyor (16) is provided, and the chain guide (21)
The rear part of the chain guide (21) is provided so as to be able to move upward by the bale (A) forming pressure with the front part of the upper pipe conveyor (1) as the fulcrum, and the upper pipe conveyor (1) moves toward the lower pipe conveyor (17).
A spring (42) for elastically supporting 6) is provided, and the spring (42) is connected to the chain guide (21) so that the elastic pressure can be adjusted.

As shown in FIGS. 6 to 7, the side plate (3a) has a bail pressure detecting switch (a bail pressure detecting device) which detects a peripheral pressure when the forming diameter of the bail (A) becomes larger than a certain value. 50) and a switch operating plate (51) for operating the switch (50). The operating plate (51) is swingably supported by the side plate (3a) via a fulcrum shaft (52), and A fulcrum crossing spring (54a) is stretched between the fixing pin (53) of the side plate (3a) and the fixing pin (54) of the operation plate (51), while the fixing pin (41) of the chain guide (21) is also stretched. And the fixing pin (54) of the operation plate (51) are connected via the wire member (55). The wire member (55) has one end fixedly supported by the pin (41) and an engagement guide portion (55a) for engaging and supporting the pin (54) formed at the other end. And the guide part (5
5a) has a bail pressure detecting narrow portion (55b) which always engages and holds the pin (54), and the pin (55b) has a pin ( Five
4) is engaged and held, and the other end of the operating plate (51) is brought into contact with and held by the pin (53) by the force of the spring (54a), and the bail pressure becomes a certain level or more, and the contact pressure causes the shaft (37) to move. When the chain guide (21) is opened upward at a constant angle (α) in the center, the pin (54) is moved to the sixth position by the narrow portion (55b).
The other end of the operating plate (51) is brought into contact with the adjustment bolt (56) which is a stopper by moving the operating plate (51) as shown by the imaginary line in the figure. When the operating plate (51) is held in contact with the stopper (56), The switch (50) is turned on to drive an alarm device to notify the operator of the completion of the formation of the bale (A). When the chain guide (21) is open above the steady position by a certain angle (α) or more, the narrow portion (55b) of the wire member (55) climbs over the pin (54) and the guide portion (55a). The pin (54) is engaged and held between the innermost end and the narrow portion (55b). In addition, the switch (5) using the mounting bolt (57) of the switch (50)
It is possible to adjust the forming diameter of the bale (A) by adjusting the mounting position of (0) or changing the restricting position of the stopper (56).

As shown in FIGS. 8 to 14, the bundling device (10) is provided in the bale forming chamber (18) at a rear portion of the idler (20) and at a substantially intermediate position between the drive sprocket (24). A binding case (59) for connecting and fixing the side plate (3a) of the portion (3) through a drive input case (58), and the case (59).
Drive and driven sprockets (62) (63) axially supported by the sprocket shafts (60) (61), and a runner traverse chain (6) stretched between these sprockets (62) (63).
4) and a pair of worm gears (66) which are installed inside the input case (58) and rotate from the input sprocket (65).
A binding clutch (68) for longitudinally freely transmitting to the drive sprocket (62) through the (67), and the binding case (59)
A main twine feeding roll (71) that supports the upper end of the roll drive shaft (70) in conjunction with the worm gear (66) by supporting it via a roll case (69) and a swing fulcrum on the roll case (69). It is supported via a shaft (72) and an oscillating plate (73), and is pressed against the roll (71) by the force of a spring (74) so that the twein (75) is directed forward in the bale (A) direction by the pressing force during rotation. Dew twine feeding roll to be fed to (76)
And a twine feeding guide body (77) which is provided between the rolls (71) and (76) in front of the roll and has a wide trumpet mouth for guiding the twine (75) freely in the left and right directions, and the swing. A roll opening handle (78) that is connected to the plate (73) and pushes the roll (76) downward against the force of the spring (74), and a rotation fulcrum shaft (79) in front of the guide body (77). A cutter (80) that can be moved up and down to cut the twine (75) when binding is completed.
A twine guide (81) provided at the front position of the cutter (80), and a hook-shaped engaging member (82) and a sliding resistance member on the lower sliding rail portion (59a) of the binding case (59). A twine lateral feed runner (86) that is supported via a leaf spring (83) and is engaged and connected to a locking pin (84) integrally attached to the chain (64) through a rectangular engaging hole (85). )When,
The runner (86) includes a runner twine guide (87) provided at a position (t) offset from the center position at the front end of the runner (86), and the rolls (71) (76) when the binding clutch (68) is engaged. The twine (75) is turned around and twisted around the outer periphery of the bale (A) by the guide (87) of the runner (86) which moves left and right, and the runner (86) is twined around the twine. The cutter (80) is operated to move upward to cut the twine (75) when a predetermined position, which is the end position of winding (75), is reached.

When the runner (86) reaches the end of the left-right movement and is folded back, the pin (84) causes the pin (84) to move to the right or left edge (85) of the engagement hole (85).
a) The movement of the runner (86) is stopped for a distance (H) from the contact with the left or right edge (85b) (85a) from (85b), and the twine (75) is wound around both ends of the bale (A). The leaf spring (83) that acts between the binding case (59) and the runner (86) while the runner (86) is not moving acts as a brake on the runner (86), The tension of the twine (75) prevents the runner (86) from being pulled toward the center and moving, and the position of the runner (86) is maintained.

A twine drop prevention plate (88) is provided in front of the bundling case (59), and the prevention plate (88) is attached over the entire width between the left and right side plates (3a) (3a), and the runner ( 86)
The twine (75) is prevented from falling downward by the left and right movements of the bale forming chamber (18) and the runner (86).
It is configured to eliminate accidents such as hay that jumps out in the left-right movement area between the two stays and prevents the runner (86) from moving left and right. The prevention plate (88) is the bale forming chamber (18).
It also has the effect of returning the hay popping out from the binding device (10) to the bale forming chamber (18) again.

As shown in FIG. 15, the cutter (80) is interlocked with the opening of the door (36), and the arm (89) integrally fixed to the link (39) has a long hole (90). Pin (91). The cutter (80) is connected via the connecting wire (92) and the pin (93), and when the fulcrum of this link (39) is crossed by opening the door (36), the fixed guide metal fitting (94) of the result case (59). ) And the pin (93) of the cutter (80), the cutter (80) is moved upward against the return spring (95) stretched to cut the twine (75), while the door (36) is closed. When the link (39) is returned to its original position by means of the spring (95) force, the cutter (80) is again returned to its original lower position stopper (96).
It is configured to be held in contact with.

Reference numeral (40a) in FIG. 4 is a bail pressure adjusting element which is a replacement hole for the pin (40). By changing the mounting position of the pin (40) to the current position or the hole (40a) position, The force of the spring (42) can be largely changed in two steps.

This embodiment is configured as described above, and the hay picked up by the pickup section (4) is carried into the bale forming chamber (18) by the lower pipe conveyor (17), and the upper and lower pipe conveyors (16) ( 17) to form a roll-shaped bale (A). And now the veil (A)
When the diameter of is formed to be larger than the set constant diameter,
Due to the bale (A) pressure, the upper pipe conveyor (16)
The chain guide (21) is pushed upward by a certain angle (α) around the shaft (37) against the fulcrum spring (42) to turn on the switch (50) to drive the alarm device and the bail ( A) Notify the operator that the formation is completed.

When the traveling clutch lever (13) is turned off, the binding clutch (68) is turned on to start binding by the twine (75). As the runner (86) is driven by the chain (64), as shown in the direction of the arrow in FIG. 9, the runner (86) rolls around the outer periphery of the bale (A) while making one round trip from the center to the right, from the right to the left, and from the left to the center. ) (76), the twine (75) fed through the guide (87) (1) to (5) in FIG.
The runner (8
When 6) folds back to the left / right moving end, the locking pin (84) connected to the tongue (64) is inserted from one end edge (85a) or (85b) of the engaging hole (85) as shown in phantom line in FIG. The movement of the runner (86) is stopped until it comes into contact with the other end edge (85b) or (85a), and the twine (7) at both ends of the bale (A) is stopped.
It is intended to prevent the shape of the bale (A) from collapsing by making the winding of 5) multiple times. When the runner (86) is stopped at the left and right movement ends, the leaf spring (83) urges the resistance to keep the runner (86) stationary. 14th stop pin (84)
The runner (8
6) does not maintain the stop and naturally moves toward the center due to the tension of the twine (75)) Therefore, even if a force toward the center is applied to the runner (86) due to the tension of the twine (75), the runner does not move and always remains steady. By holding the runner (86) in the position, the twines (75) can be securely bound without sagging.

Then, when the door (36) is opened, the cutter (80) is moved adjacently upward by the force of the spring (42) when the link (39) crosses the fulcrum, and cuts the twine (75). .

When removing the bale (A) from the left machine,
As shown in FIG. 14, the guide (87) is offset from the center position of the runner (83) by a dimension (t) to the left side. Therefore, as shown in FIG. 16 (5), the twine () is attached to the left end of the bale (A). The leftmost end of the winding of 75) is close, and the distance (l ₂ ) between the rightmost end of the bale (A) and the rightmost end of the twine (75),
At the distance (l ₁ ) between the left end of the bale (A) and the leftmost end of the twine (75), l ₂ > l ₁ , and the twine (75) of the take-out side with respect to the take-out direction as shown by the dotted arrow )
The distance (l ₁ ) of the bale (A) is reduced to the maximum, and therefore the bale (A) on the take-out side can be made small in diameter by this binding and the take-out of the bale (A) can be made smooth without catching.

FIG. 17 to FIG. 18 show another modified structure example, which is a bail having locking grooves (97a) (97b) for replacing the pin (40) with the link (39). A plurality of pressure adjusting elements are formed, and the bolt (49) is connected to the pin (40) through a receiving member (98) so that the length of the bolt (49) can be adjusted. A handle (which is integrally connected to the pin (40) ( 99) The pin (40) is re-engaged with the locking groove (97a) (97b) to change and adjust the spring (42) force largely, while the bolt (49) is operated to finely adjust the spring (42) force. As described above, the bale (A) having the desired hard and soft bale pressure is obtained in accordance with the variety of straw grass or the change of water content.

"Effect of device" As is apparent from the above-described embodiments, the device of the present invention is arranged so that the straw grass picked up by the front pickup part (4) of the lower pipe conveyor (17) is transferred between the upper and lower pipe conveyors (16) (17). In a roll baler for forming a bale (A) by converging in a roll shape in a roll, an endless chain (2) of an upper pipe conveyor (16)
2) A chain guide (21) for tensioning and supporting the chain guide (21) is provided, and the chain guide (2) is provided with the front part of the chain guide (21) as a fulcrum.
1) The rear part is provided so as to be movable upward by the bale (A) forming pressure, and the spring (42) for elastically supporting the upper pipe conveyor (16) in the direction of the lower pipe conveyor (17) is provided to adjust the elastic pressure freely. The spring (42) is connected to the chain guide (21), and the upper pipe conveyor (1
By stretching and supporting 6) on the chain guide (21), it is possible to prevent the conveyor (16) from undulating, and
Since the spring (42) whose elastic pressure can be adjusted is connected to the chain guide (21) which can be moved upward, the bale (A) having substantially uniform hardness (weight) and size (outer diameter) can be easily formed. In addition, it is possible to easily reduce mechanical vibration, noise, and the like and make the bale (A) uniform as compared with the related art.

[Brief description of drawings]

FIG. 1 is a side view of the bale forming part, FIG. 2 is a side view of the whole, FIG. 3 is a plan view of the same, FIG. 4 is a side view of the upper pipe conveyor part, and FIG. Top view, No. 6
FIG. 7 is a side view of the bale pressure detection part, FIG. 7 is a part view of the same, FIG. 8 is a side view of the bundling device part, FIG. 9 is a plan view of the same, and FIG. 10 is a back view of the same. FIG. 11 is an enlarged side view of the same portion, FIG. 12 is an enlarged plan view of the same portion, FIG. 13 is an enlarged front view of the same portion, FIG. 14 is an enlarged bottom view of the same portion, FIG. 15 is an explanatory view of a cutter portion, FIG. 16 is an explanatory view showing a bundling operation state, and FIGS. 17 to 18 are explanatory views showing other modified structure examples. (4) …… Pickup part (16) (17) …… (For bale formation) Conveyor (40a) (49) (97a) (97b) …… Bale pressure adjusting element (42) …… Spring (50) …… Bale pressure detector (A) ... Bale

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yoshitaka Nagasaki Yoshitaka Nagasaki 428 Enami, Okayama City, Okayama Seirei Industry Co., Ltd. The referee body of the referee, Takao Ishikawa, Judge Fumio Fuji, Toshiko Otaka (56) Open Sho 58-139046 (JP, U) Actual Open Sho 59-166639 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. Straws picked up by a pickup section (4) in front of a lower pipe conveyor (17) are converged into a roll between upper and lower pipe conveyors (16) (17) to form a bale (A). In the roll baler to be formed, a chain guide (21) for tensioning and supporting the endless chain (22) of the upper pipe conveyor (16) is provided, and the front part of the chain guide (21) serves as a fulcrum and the rear part of the chain guide (21). And a spring (42) for elastically supporting the upper pipe conveyor (16) in the direction of the lower pipe conveyor (17), the elastic force being adjustable by the spring (42). Is connected to the chain guide (21).