JP2528273B2 - Roll-bearer bale forming device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention picks up straw grass such as grass and straw scattered in a field by a pickup unit, carries it into a bale forming chamber by a pipe conveyor, and forms it into a roll-shaped bale. The present invention relates to a bale forming device for a roll baler.

"Prior Art" Conventionally, as disclosed in Japanese Utility Model Laid-Open No. 59-107853, there is a roll baler that forms a bale by carrying straw grass picked up by a pickup unit into a bale forming chamber.

"Problems to be solved by the invention" In the prior art, since the pipe conveyor is connected on the lower side of the bale forming chamber, there is a problem that straw grass easily pops out from the conveyor connecting portion, and the bale has a predetermined size. When the bale forming pressure becomes high, straw grass is extruded into the conveyor connecting portion, and there is a problem that the conveyor driving resistance is apt to rapidly increase near the completion of the bale.

"Means for Solving the Problem" However, the present invention provides a bale forming apparatus for a roll baler for forming a bale by carrying the straw grass picked up by a pickup unit into the bale forming chamber, wherein the pickup unit or the bail forming chamber rear side. Extend the main pipe conveyor about half way around, connect the sub pipe conveyor feed start end to the main pipe conveyor feed end above the center of the bale formation chamber, and bale from between the upper surface of the main pipe conveyer feed end side and the sub pipe conveyor feed end. It is characterized in that the forming chamber is opened forward.

[Operation] Therefore, since one main pipe conveyor is extended between the pick-up part and the central part of the bale forming chamber, the straw waste flies to the outside from the pick-up part to the central part of the bale forming chamber. Can be easily prevented, and the straw chips that reach the end of the main pipe conveyor feed will drop downwards due to its own weight.Therefore, even if the bale forming pressure increases near the completion of the bale, the conveyor connection at the end of the main pipe conveyor feed The force for pushing straw grass from the section to the outside is reduced as compared with the conventional case, and the driving load on the main pipe conveyor and the sub pipe conveyor can be easily reduced.

Embodiment An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a cross-sectional explanatory view of a baler portion, FIG. 2 is an overall side view, and FIG. 3 is a plan view thereof. In the figure, (1) is a machine base having a traveling crawler (2), and (3) is the above-mentioned. A baler unit mounted on the machine base (1), (4) a pickup unit having a pickup guide plate (5) mounted so as to be able to move up and down in front of the baler unit, and (6) a rear part of the machine base (1). An engine part which is installed and has an engine (7) installed therein, (8) is a driving operation part having an operation panel (9) arranged in the left and right center of the body behind the engine part (6), and (10) is the above-mentioned A bundling device provided on the front side of the baler part (3), (11) a work clutch lever arranged on the left side of the driving operation part (8), and (12) adjusting the support height of the pickup part (4). A pickup lifting adjustment handle, (13) a traveling clutch lever provided on the operation panel (9), 14) (14) left and right side clutch lever (15) is a sub shift lever.

A curved bale forming main pipe conveyor (16) and a sub pipe conveyor (17) which is a bale shaping member are arranged in the bailer section (3) so as to face each other, and the bale forming chamber (18) is formed.
As shown in FIGS. 4 to 5, the auxiliary pipe conveyor (17) has a chain guide (21) and a chain tension guide (22) between the drive sprocket (19) and the idler (20). Left and right secondary endless chains (23) (23)
And a plurality of sub bale forming pipes (2) at equal intervals via bolts (24) between the left and right chains (23) (23).
5) ... is placed horizontally.

As shown in FIG. 6, the main pipe conveyor (1
6) is provided between the drive sprocket (26) provided substantially above the center of the baler section (3) and the idle sprocket (27) provided in front of the baler section (3) and facing the pickup section (4). A pair of upper and lower chain guides (28) (29)
The left and right main endless chains (32) (32) are stretched via the tension rollers (30) (31), and a plurality of bolts (33) are equally spaced between the left and right chains (32) (32). The main bale forming pipe (34) is laid horizontally.

Furthermore, a pickup rotation fulcrum cylinder shaft (35) is provided on the same axis as the sprocket shaft (27a) of the idle sprocket (27), and the cylinder shaft (35) has a pickup case (36) of the pickup section (4). ) A pickup drum (39) is mounted on the case (36) so as to support the base end so as to be vertically movable and to support a plurality of pickup fingers (38) via an eccentric shaft (37). Still further, the sprocket shaft (19) of the drive sprocket (19) (26) is
a) Power input sprocket (4a) fixed to (26a)
0) (41) to the small diameter part (42a) of the sub-counter pulley (42)
And the large diameter portion (42b) of the sub-counter pulley (42) is linked to the main counter pulley (45) on the engine side through the chain (46). The main and sub pipe conveyors (16, 17) and the pickup drum (39) are simultaneously rotated by the output of the engine (7). When the pick-up drum (39) is rotated, pick-up fingers (38) appropriately protruding to the outside of the drum (39) pick up straw grass in the field, and the main pipe conveyor (16) directly inside the bale forming chamber (18). The straw grass is carried into the roll-shaped bale (A) by the rotation of the conveyor (16) and the sub pipe conveyor (17) in the chamber (18), and the straw grass is formed into the bale (A). After formation is completed, the outer periphery of the bale (A) is bound by the twine (47) of the bundling device (10), and the bale (A) is taken out of the machine through the side door (48) on the left side of the bale forming chamber (18). It is configured as follows.

In addition, a straw-assisting carrier plate (49) having a substantially L-shaped cross section is arranged between each pipe (34) in the main pipe conveyor (16), and the left and right chains (32) are arranged.
Both ends of the conveyor plate (49) are attached to the (32) via bolts (50), the upper end saw surface (49a) of the conveyor plate (49) is faced upward, and when conveying straw grass by each pipe (34). It is configured to facilitate transportation.

Furthermore, the chain tension guide (22) in the sub pipe conveyor (17) has a guide body (51) in which one of the chain guides (52) is provided with a fulcrum shaft (53) and the other with a shaft (54) and an elongated hole (55). ) Is swingably supported via the shaft (5
4) Adjust the bolt (56) fixed to the chain (2)
The tension of the chain guide (52) with respect to 3) is adjusted appropriately.

Furthermore, a pair of chain guides (29) in the main pipe conveyor (16) have upper and lower pivoting plates (29) attached to both ends of the chain guides (29) to the sprocket shaft (26a) and the sub counter pulley shaft (57) of the sub counter pulley (42). 58) (59) supported by a bearing (60) that supports the sub-counter pulley shaft (57) on the side plate (3a), and a lower pivoting plate (a) that is coaxial with the pulley shaft (57). The guide roller (61), which supports the sprocket shaft (26a) while supporting the sprocket shaft (26a) in a swingable manner, is formed in an arc shape on the side plate (3a) about the pulley shaft (57) as a roller guide groove ( 62) is supported via a resin guide member (63), and the upper end side of the chain guide (29) can be swung about the pulley shaft (57) so that the feed end side of the main pipe conveyor (16) Move the semicircular bale forming part (16a) that is Lumpur forming chamber (1
8) is configured to be expandable.

Further, a resin guide member (64) made of, for example, high-density polyethylene is integrally attached to a contact portion of each chain (23) (32) in the guide (21) (22) (28) (29), The guides (21) (22) (28) (29) are configured to prevent noise and improve wear resistance, and to smoothly slide the chains (23) (32).

By the way, the pulley shaft (57), which is a rotation fulcrum shaft of the main pipe conveyor (16), has a linear straw introduction portion (16b) and a feeding rear end side which are the feeding start end side of the conveyor (16). On the line (1) connecting the intersection (E) with the bale forming part (16a) and the center (C) of the bale forming chamber (18) and near the point (E), that is, the conveyor (16) reciprocating. Arranged in a gap between the conveyor parts to minimize movement of the intersection (E) position when moving the bale forming part (16a) of the conveyor (16) around the pulley shaft (57). The bale (A) when expanding the bale forming chamber (18)
Of the bale formation part (16a)
By reducing the contact area between the bale (A) and
The bail (A) is easily removed from the machine through the side door (48).

Further, the end of the bale forming part (16a) of the main pipe conveyor (16) is extended up to near the vertical line (t) passing through the center (C) of the bale forming chamber (18), and the conveyor (16) ) From the sub pipe conveyor (17) side, the straw grass is configured to fall toward the center (C) direction without jumping outside of these conveyors (16) (17).

Further, the sub pipe conveyor (17) is arranged on the front side of the extension line of the line (1) connecting the intersection (E) and the center (C) to support the bale (A) by the conveyor (17). By limiting the area to the minimum, the bale (A) can be easily taken out from the side door (48). As is clear from the above, in the bale forming apparatus of the roll baler for forming the bale (A) by carrying the straw grass picked up by the pickup part (4) into the bale forming chamber (18), the pick-up part (4) to the bale are provided. The main pipe conveyor (16) is extended about half around the rear side of the forming chamber (18), and the sub pipe conveyor (17) feed start end is connected to the main pipe conveyor (16) feed end above the center of the bale formation chamber (18). The bale forming chamber (18) is opened forward between the upper surface of the main pipe conveyor (16) at the feed start end side and the end of the sub pipe conveyor (17) at the feed end.

As shown in FIGS. 7 to 9, the chain guide (29) for moving the bale forming part (16a) of the main pipe conveyor (16) is connected to the side door (48) via a link mechanism (65). The link mechanism (65) is connected in an interlocking manner, and the link mechanism (65) has a rotation arm (67) integrally fixed to the rotation fulcrum shaft (66) of the side door (48) and a mounting length of the arm (67). A rod (68) that is adjustably connected to the left side plate (3a) of the baler part has a base end swingably supported by a shaft (69) and a pin (70).
A first oscillating plate (71) for connecting the tip to the other end of the rod (68) through a connecting plate (73) for connecting the lower end to the oscillating plate (71) through a pin (72); A swing arm (76) having a base end swingably supported by a swing fulcrum shaft (74) of the side plate (3a) and a tip end connected to an upper end of the connecting plate (73) via a shaft (75); Inside the side plate (3a), the fulcrum shaft (7
4) A swing arm (77) whose base end is fixedly mounted, and the arm (7).
Connecting plate (79) that connects one end to 7) via pin (78)
And a second swing plate (82) which has a base end swingably supported by the side plate (3a) via a shaft (80) and has one end connected to the other end of the connecting plate (79) via a pin (81). ) And the pivot board (58)
A guide connecting plate (85) for connecting the second swing plate (82) and the second swing plate (82) via pins (83) (84), respectively, and the connecting plate (73).
And a bail compression spring (86) stretched between the shaft (75) so that the spring pressure can be adjusted. The closing force of the spring (86) at the time of closing the door (48) causes the main pipe conveyor (16) to end. It is configured to hold the position in the forward movement position and move the end of the main pipe conveyor (16) to the rear opening position by a certain angle (β) via the link mechanism (65) when the door (48) is opened. .

The lower end of the spring (86) is an eccentric shaft (87) of the connecting plate (73).
The upper end is connected to the shaft (75) through an adjusting bolt (88), and the eccentric shaft (87) is rotatably supported by a fixing piece (89) of a connecting plate (73), and a handle ( 90) The spring (86) force can be adjusted in multiple steps by operation.

Further, a bail pressure detection switch (91) for detecting the outer peripheral contact pressure when the diameter of the bale (A) becomes a fixed diameter or more is provided outside the left side plate (3a), and the connecting plate (73) is provided. A switch operating member (94) is rotatably attached to a fixed mounting plate (92) fixed to the switch via an axial bolt (93), and an L-shaped arm (95) fixed to the operating member (94) is attached to the switch. It is provided so as to contact the actuator (91a) of (91) and the fixing pin (9) of the mounting plate (92) is provided.
A fulcrum crossing spring (97) is stretched between 6) and the L-shaped arm (95). Further, the bail pressure detecting member (99) is integrally attached to the pressure adjusting nut (88a) engaging with the tip of the adjusting bolt (88) through the bolt (98), and the detecting operation is performed on the detecting member (99). While fixing the pin (100) integrally,
Upper and lower engagement plates (101) (10) that are brought into contact with the operation pin (100).
2) is fixed to the operating member (94), and the spring (9) is fixed when the normal main pipe conveyor (16) is closed.
While the operation member (94) is pulled clockwise by 7) and the switch (91) is kept off, the diameter of the bail (A) becomes a certain value or more and the contact pressure resists the force of the spring (86) to prevent the main pipe conveyor. When the (16) opens rearward at a constant angle (α) about the shaft (57), the shaft (75) of the swing arm (76) is connected to the elongated hole (of the connecting plate (73) about the shaft (74). 73a) to move upward and rotate the operating member (94) counterclockwise through the operating pin (100) and the upper engaging plate (101) as shown in phantom line in FIG. The spring (97) is moved beyond the fulcrum, and at this time, the L-shaped arm (95) of the operating member (94) causes the actuator (91) of the switch (91).
A) is pressed to turn on the switch (91) to drive an alarm device to notify the operator of the completion of the formation of the bale (A).

Further, the base end of the indicator (103) is fixed to the operation member (94), and the rear end of the indicator (103) extends rearward of the cover (3b) from the guide groove (3c) of the rear cover (3b). The indicator (103) is used to confirm the on / off state of the switch (91) accompanying the formation of the bale (A), while the reset is performed from the outside when the operating member (94) crosses the fulcrum due to vibration or the like. are doing.

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 main pipe conveyor (16), and the main and sub pipe conveyors (16) ( 17) to form a roll-shaped bale (A). Then, when the diameter of the bale (A) is now formed to be equal to or larger than the set constant diameter, the bail (A) pressure causes the chain guide (16) of the main pipe conveyor (16) to resist the spring (86). It can be spread backward by a certain angle (α) around the shaft (57). In this state, each element (85) (82) (79) (77) (74)
The action is transmitted in the order of (76), (75), (88), (99), (100), and (101), and the operation member (94) is rotated counterclockwise about the shaft (93). As a result, the spring (97) crosses the fulcrum and the arm (95) turns on the switch (91). When the switch (91) is turned on, the alarm device is driven to turn on the bail (A). ) Is notified to the operator. In this case, the shaft (75) moves in the long hole (73a) of the connecting plate (73) and operates independently of the side door (48). After that, the twine (47) supplied from the bundling device (10) is wound around the outer periphery of the bale (A), and after the bundling is completed, the side door (48) is opened to automatically open the main pipe conveyor. The end of (16), that is, the bale forming part (16a) has a constant angle (β) about the shaft (57).
The conveyor (16) that moves to the rear and is for the bale (A)
The pressure is released and the product is taken out.

When the bale (A) is taken out, the straw introduction part (16b) and the bale forming part (1) of the conveyor (16) are used.
On the line (l) connecting the intersection (E) with 6a) and the center (C) of the bale forming chamber (18), and the conveyor (16)
Since the shaft (57) is arranged in the gap between the reciprocating conveyor parts, the contact area of the conveyor (16) with respect to the bale (A) during movement of the conveyor (16) is very small. In addition to facilitating its removal, the difference in height displacement of the intersection (E) can be made small, and the bale (A) can be prevented from falling when the conveyor (16) is opened, which facilitates removal. Can be

Further, the sub pipe conveyor (17) is also arranged on the front side of the extension line of the line (l), and the contact area with the bale (A) is suppressed to the minimum, so that the bale (A) is taken out. The resistance due to the conveyor (17) can be made extremely small.

Furthermore, the end (1) of the main pipe conveyor (16) is a vertical line (t) passing through the center (C) of the bale forming chamber (18).
8) This conveyor (1
The straw grass fed from the end of 6) moves at least in the downward direction from the horizontal direction.
6) It is prevented from jumping outside from (17). Further, since the end of the main pipe conveyor (16) is supported by the side plate (3a) by the two means of the link mechanism (65) and the guide roller (61), the supporting strength of each side is dispersed. The strength can be reduced and
The conveyor (16) can be moved smoothly.

Furthermore, by supporting one end of the chain guide (29) of the main pipe conveyor (16) on the shaft (57) and the other end on the roller guide groove (62) via the guide roller (61), Since both ends of the guide (29) can be stably held by the side plate (3a), the entire chain guide (29) is prevented from being distorted or deformed by bale pressure or the like, and this guide (29) is prevented. The strength of itself can be reduced, and the rotation of the conveyor (16) itself is not adversely affected.

[Advantages of the Invention] As is clear from the above embodiments, the present invention provides a bale forming apparatus for a roll baler that carries the straw grass picked up by the pickup section (4) into the bale forming chamber (18) to form the bale (A). In the above, the main pipe conveyor (16) is extended about half around the rear side of the pick-up part (4) to the bale forming chamber (18), and the main pipe conveyor (16) feed end above the center of the bale forming chamber (18). A pickup is made by connecting the feed start end of the sub pipe conveyor (17) and opening the bale forming chamber (18) forward from between the upper face of the feed start end of the main pipe conveyor (16) and the feed end of the sub pipe conveyor (17). Since one main pipe conveyor (16) is extended between the part (4) and the central position above the bale forming chamber (18), it extends from the pickup part (4) to above the central part of the bale forming chamber (18). By the time the straw was out It can be easily prevented from jumping to the side, and the straw chips reaching the feed end of the main pipe conveyor (16) drop downward due to its own weight. Therefore, the bale (A) forming pressure will be near the completion of the bale (A). Main pipe conveyor (1
6) The force to push straw grass outward from the conveyor connection part at the end of feeding is reduced compared to the past, and the main pipe conveyor (16)
Also, it is possible to easily reduce the drive load of the sub pipe conveyor (17).

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional explanatory view of a baler portion, FIG. 2 is an overall side view, FIG. 3 is a plan view of the same, FIG. 4 is a driving explanatory view of a baler portion, and FIG. FIG. 6 is an explanatory view of the sub pipe conveyor section, FIG. 6 is an explanatory view of the main pipe conveyor section, FIG. 7 is a side explanatory view of the link mechanism section, FIG. 8 is an enlarged explanatory view of the same, and FIG. 9 is a plan explanatory view of the same. is there. (4) ... Pickup section (16) ... Pipe conveyor (18) ... Bale forming chamber (A) ... Bale (C) ... Center

Claims (1)

(57) [Claims] 1. A bale forming apparatus for a roll baler for forming straws picked up by a pickup section (4) into a bale forming chamber (18) to form a bale (A), the picking section (4) to the bale forming chamber. (18) Extend the main pipe conveyor (16) about halfway around the rear side to form the bale forming chamber (18)
The feed end of the sub pipe conveyor (17) is connected to the feed end of the main pipe conveyor (16) above the center, and the bale forming chamber is provided between the upper surface of the feed end of the main pipe conveyor (16) and the feed end of the sub pipe conveyor (17). A bale forming device for a roll baler, characterized in that (18) is opened forward.