JPH0420183Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a roll baler that picks up grass, straw, and other grass scattered in a field in a pick-up section and forms it into a rolled bale in a bale forming chamber.

``Prior Art'' Conventionally, as shown in Japanese Utility Model Publication No. 53-31257, there has been a technique in which a pick-up section for picking up straw grass is raised and lowered to change the support height.

"Problems to be Solved by the Invention" The above-mentioned conventional technology raises and lowers the pick-up part using a hydraulic cylinder, but when the support height of the pick-up part is manually adjusted by rotating the operating handle, it is difficult to adjust the support height of the pick-up part during pick-up work. When moving over grooves or ridges, it is necessary to change the support height of the pick-up part significantly, making operation of the handle extremely cumbersome and changing from a high position during movement to a low position during work. When lowering the pick-up part, there were problems in handling such as not being able to return it to the original working position easily.

``Means for Solving the Problems'' However, the present invention provides a roll baler equipped with a pick-up section for picking up straw grass, is provided with an operating handle for manually adjusting the support height of the pick-up section by rotating the handle, A pedestal to be attached is swingably provided on a rotating shaft, and the rotating shaft is disposed at a position where the handle and pedestal are rotated together and the pick-up portion is always raised to a predetermined position. be.

"Function" Therefore, by rotating the handle, the support height of the pick-up part during picking up work can be adjusted,
In addition, since the handle and the pedestal are rotated together to raise and support the pick-up part to a predetermined height, it is possible to easily change the support height of the pick-up part for working and other times, and to position the pick-up part for non-working positions. The pick-up section of the pick-up section can be easily returned to the working position, and handling operability such as height adjustment of the pick-up section can be improved, and collision prevention of the pick-up section can be easily achieved.

"Embodiment" An embodiment of the present invention will be described below in detail based on the drawings.

Fig. 1 is an explanatory diagram of the bale forming section, Fig. 2 is an overall side view, and Fig. 3 is a plan view of the same. A baler section 4 is a pick-up section which is installed movably up and down in front of the baler section and has a pick-up finger 5; 6 is an engine section which is installed at the back of the machine base 1 and has an engine 7 therein; It is a driving operation section having an operation panel 9 connected to the left and right center of the machine behind the engine section 6. The baler section 3 has a binding device 10 and a work clutch lever 11, and the operation panel 9 has a travel clutch lever 12 and a work clutch lever 11. Left and right side clutch levers 13, 13
It also has a transmission clutch lever 14.

An upper pipe conveyor 16 and a lower pipe conveyor 17 are installed in the bale forming chamber 15 of the baler section 3.
As shown in FIG. 4, the upper pipe conveyor 16 has a drive sprocket 18.
The left and right upper endless chains 21, 21 are stretched between the idler 19 and the idler 19 via the chain guide 20,
A plurality of veil forming upper pipes 23 are horizontally suspended between these chains 21, 21 through bolts 22 at equal intervals. Further, as shown in FIGS. 5 to 8, the lower pipe conveyor 17 has a drive sprocket 24 provided in the bale forming chamber 15 and an idle sprocket 2 provided in the pick-up section 4.
5 and the left and right lower endless chains 2 through chain guides 26, 27 and tension rollers 28.
9 and 29 are stretched, and a plurality of veil forming lower pipes 31 are horizontally suspended between these chains 29 and 29 at equal intervals through bolts 30.

Furthermore, a pick-up rotation fulcrum shaft 32 is provided at the front end of the chain guide 27, and the base end of the pick-up case 33 of the pick-up section 4 is supported by the fulcrum shaft 32 so as to be vertically movable. The idle sprocket 25 is rotatably supported by a support shaft 34 fixed to the front end of the pick-up case 33, and the base end of each pick-up finger 36 is pivotally supported by an eccentric shaft 35 integrally fixed to the support shaft 34. , and the tip of each finger 36 is made to protrude outward from each opening 38 of a finger cylinder 37 integrally connected to the sprocket 25, so that the length of the protrusion can be appropriately varied when the finger 36 rotates due to the rotation of the cylinder 37. The hay in the field is picked up and taken directly into the bale forming chamber 15 by the lower pipe conveyor 17, and as the upper and lower pipe conveyors 16 and 17 rotate, the hay in the forming chamber 15 is formed into a rolled bale. It is composed of

As shown in FIGS. 9 to 12, the pick-up case 33 includes a support holder 39 and a wire 40.
The lifting device 41 is connected to a pick-up lifting device 41 through a pick-up operation box 42, a pick-up height adjusting operation handle 43, a rotary screw shaft 44 integrally connected to the handle 43, and a rotating screw shaft 44 connected to the handle 43 and the screw. A pedestal 45 that supports the shaft 44, a support shaft 48 that supports the pedestal 45 on the box 42 via a rotating shaft 46 and a holder 47, a sliding body 49 that connects and connects the screw shaft 44; a wire link 51 that connects one end to the sliding body 49 via a swing pin 50 and the other end to the wire 40; and a spring 52 that applies a lifting force and bias to the handle 43 in a counterclockwise direction about the shaft 46.
The lifting amount of the pick-up section 4 is adjusted by sliding the slide body 49 using the handle 43, and the box 4 can be adjusted from the raised and lowered positions of the pick-up section 4 in FIGS. 9 and 12.
When the handle 43 is rotated counterclockwise around the shaft 46 along the guide groove 53 of No. 2 and housed in the virtual line state in the figure, the wire 40 is pulled through the wire link 51 and the pick-up portion 4 is moved to the maximum position. It is configured to be lifted to a raised position. At this time, when the wire 40 is raised to the highest position from the raised adjustment position shown in FIG. 9 or the lowered adjustment position shown in FIG. The distances ₁ and ₂ between the pins 56 are made approximately equal ( ₁ ≒ ₂ ), so that no matter which adjustment position the pickup portion 4 is in, the distances 1 and 2 between the pins 56 are always approximately the same when the handle 43 is in the retracted state as shown by the imaginary line in the figure. The pick-up portion 4 is lifted and held at the highest height position.

As shown in FIGS. 13 to 14, the front end of the chain guide 20 supporting the upper pipe conveyor 16 is swingably supported by the drive shaft 57 of the drive sprocket 18, and the side plate 3a of the baler section 3 is a pivot point. A pin 60,
61 and a fulcrum crossing spring 62 which is a position holding mechanism. Further, the side plate 3a is equipped with a detection switch 63 which is a bail pressure detection device that detects the outer circumferential pressure of the bale A when the formed diameter of the bale A becomes larger than a certain value, and a switch operation plate 64 that operates the switch 63. Then, the operation plate 64
is supported on the side plate 3a via a fulcrum shaft 65, and a fulcrum cross-over spring 6 is stretched between the operation plate 64 and the side plate 3a.
6, the adjustment bolt 67 of the operation plate 64 is kept in contact with the fixing pin 68 of the chain guide 20 at all times, and when the bail A diameter exceeds a certain level, the chain guide 20 is centered around the shaft 57 due to the contact pressure. When the switch 6 is opened upward at a certain angle α, the operation plate 64 is moved past the fulcrum by the force of the spring 66 around the fulcrum shaft 65 via the pin 68 and the bolt 67.
3 is turned on to drive an alarm device and notify the operator of the completion of bale formation. Further, a return leaf spring 69 is stretched between the operation plate 64 and the fixing pin 61 of the chain guide 20, so that when the chain guide 20 returns to its original normal position, the operation plate 64 is also returned and the switch 63 is deactivated. It is configured to do this. Furthermore, the side plate 3a
is provided with a guide regulating plate 70 that regulates the movement range of the pin 61, and connects the shaft 57 and the pin 58 when the chain guide 20 is opened at a certain angle β above the normal position with the shaft 57 as the center. The spring 62 is caused to pass over the fulcrum from line b, and the pin 61 is brought into contact with one end of the regulating plate 70, and the guide 20 and the link 59 are held in the imaginary line state in FIG. 13, and the upper pipe conveyor 16 is opened. It is configured so that it is in the state. In addition, left and right side plates 3
left and right fulcrum crossing links 59 pivoting to a, 3a;
59 has the left and right rods 7 through long holes 71, 71.
2 and 72 are connected to each other, and the veil forming chamber 15
Connecting link 74 of side door 73 that opens the left side of
The other end of the rod 72 on the left side is connected directly, and the other end of the rod 72 on the right side is connected via links 75 and 76, so that the upper pipe conveyor 16 and the side door 73 are interlocked and opened. It is configured as follows.

As shown in FIGS. 15 to 21, the bundling device 10 is provided at an approximately intermediate position between the idler 19 of the upper pipe conveyor 16 and the drive sprocket 24 of the lower pipe conveyor 17 in the rear part of the bale forming chamber 15, and 3a, a binding case 78 connected and fixed to the drive input case 77, and the case 7
Drive and driven sprockets 81 and 82 are supported via respective sprocket shafts 79 and 80, and a chain 83 is stretched between these sprockets 81 and 82.
A pair of worm gears 85 are installed inside the input case 7 to control the rotation from the input sprocket 84.
A binding clutch 86 connectably connects and disconnects the power to the drive sprocket 81 through a sprocket 81, a main rotating body 89 for twine feeding that is interlocked and connected to the chain 83 via a sprocket 87 and a rotating shaft 88, and the rotating body 8.
9 is pressed against the chain 83 via a tension spring 90, and the twine 91 is sequentially fed out from the forward delivery port 92 by the pressure contact force. When the twine 91 is connected through the engagement hole 95 of the bale A and moves left and right through the rotor 78a, the twine 91 that is fed out from the delivery port 92 is sent forward from the guide fitting 96 so as to spiral around the outer periphery of the bale A from the left and right directions. Runner 97, which is a twine guide body for winding
When starting winding, the twine 91 is slid down the slope part 96a of the guide metal fitting 96 and the guide hole part 96
A twine guide plate 98 is provided to guide and introduce the twine 91 from the delivery port 92 when the runner 97 moves left and right due to the engagement operation of the binding clutch 86. It is configured to be wound spirally around the outer periphery. A one-way clutch 87a is installed in the sprocket 87 of the main rotating body 89, so that when the twine 91 is wrapped around the bale A and the feeding speed of the twine 91 increases thereafter, the main rotating body 89 is allowed to rotate freely. It is composed of

Further, a cutter 99 for cutting the twine is attached to the front surface of the binding case 78 in front of the rotary bodies 89, 93 via a pivot shaft 100, and each time the twine 91 is wrapped once around the bale A, the cutter 99 is attached to the runner 97. By bringing the pin 101 to be planted into contact with the cam-shaped protrusion 99a of the cutter 99, the cutting portion of the cutter 99 is lifted and the twine 91 held on the guide fitting 96 is cut.

Furthermore, the binding clutch 86 is interlocked with the traveling clutch, and includes a clutch operating plate 103 that connects one end to the clutch arm 102 of the binding clutch 86, and pins 104a and 104 on the operating plate 103.
The clutch spring 104 always applies a spring force in the clutch engagement direction via the clutch spring 4b, and the runner 97 supports the intermediate portion via the fulcrum pin 105, and the pin 107 side at one end is normally erected by the force of the torsion spring 106. Inclined clutch action surface 1 of the operation plate 103
03a and resist the force of the spring 104.
Clutch switching arm 10 that holds 03 in the disengaged state
8, one end is connected to the traveling clutch lever 12 via a wire 109, and when the traveling clutch is in the disengaged state, the inclined action surface 111a is brought into contact with the release pin 112 of the arm 108 against the force of the spring 110 between the pins 110a and 110b. and a stopper 113 that holds the switching arm 108 in a steady position relative to the spring 106. 1
2, the starting plate 111 is pulled in the direction of the solid arrow in FIG. 20 via the wire 109, and the operating surface 111a is used to switch the switching arm 108 clockwise around the pin 105 to the state shown in the imaginary line in the same figure. The configuration is such that when the pin 107 is released from the operating plate 103, the operating plate 103 is slid in the direction of the left solid line arrow, and the binding clutch 86 is turned on.

As shown in FIGS. 22 to 23, a manual binding clutch lever 114 and a cam member 115 are provided between the starting plate 111 and the traveling clutch lever 12, and the lever 114 and the cam member 115 are provided on the fixed shaft 117 of the lever box 116. Each proximal end of the cam member 115 is pivotally supported, and the distal end of the cam member 115 is connected to the wire 109 and is connected to the clutch lever 11.
A compression spring 1 that presses a cam groove 120 that engages with a fixing pin 119 of the shaft 117 and a compression spring 1 that presses the member 115 toward the lever 114.
21 at the base end, and when the lever 114 is rotated in the traveling clutch disengaging direction at the imaginary line position in FIG. 118, the cam member 115 is rotated counterclockwise about the shaft 117, and the cam groove 1
20, the cam member 115 resists the spring 121 and retreats by a certain amount in the direction of the solid arrow in FIG.
18 and the engaging surface 114a are rotated beyond a certain rotation range for disengaging the engagement surface 114a, the force of the spring 110 of the starting plate 111 returns the cam member 115 to the original position, that is, the starting plate 111 abuts the pin 110a. The clutch pin 118 is configured to return to its original normal position. In other words, the starting plate 1
Reference numeral 11 indicates that when the levers 12 and 114 are turned off, they are slid to the imaginary line position in FIG. 20 only immediately after the operation, and the pressure on the operation plate 103 by the pin 107 is released, and the starting plate 111 is then returned to its original position. When the pressure on the operating plate 103 is released, the binding clutch 86 is engaged and the runner 97 moves back and forth and returns to its original position.
07 to press the operation plate 103 to disengage the binding clutch 86 again.

As shown in FIGS. 24 and 25, the side door 73 has a bracket 122 and a pivot shaft 123.
The handle 126 is attached to the side plate 3a via a fixing plate 124 on one side and a handle 126 via a shaft 125.
is integrally attached to the shaft 125, and a spring 12 is attached to the shaft 125.
The door 73 is locked by attaching a hook 128 that applies a 7-force force and engaging the hook 128 appropriately with a locking member 129 that is integrally fixed to the side plate 3a. The door 73 is configured to be opened when the lock member 129 and the hook 128 are rotated to disengage from each other.

As shown in FIG. 26, an input shaft 131 of the traveling transmission section is interlocked with the output shaft 130 of the engine 7 through pulleys 132, 133, a belt 134, and a traveling clutch 135 which is a tension roller. Further, a counter shaft 136 is connected to the output shaft 130, and pulleys 132, 137 and the belt 1 are connected to the output shaft 130.
38 and a working clutch 139 which is a tension roller. Further, the drive sprocket shaft 140 of the lower pipe conveyor 17 is connected to the counter shaft 136 with sprockets 141,1.
42 and a chain 143, and the drive shaft 57 of the upper pipe conveyor 16 and the drive input shaft 144 of the bundling device 10 are connected to the sprocket shaft 140 through sprockets 145, 146,
84, a chain 147, and a tension sprocket 148, so that when the work clutch 139 is engaged, the upper and lower pipe conveyors 16, 17 and the binding device 10 are driven.

As shown in FIGS. 27 to 28, a bale A extraction device 149 is installed in the bale forming chamber 15.
A bail pull-out plate 152, which is a bale cross-feeding device, is embedded in a recessed groove 151 formed in the bale-forming right side wall 150 of the side plate 3a.
The plate 152 is connected to the rod 153 and the rod guide 15.
4 and the drawer handle 15 on the outside of the left side plate 3a.
5, and the handle 1 when the door 73 is opened.
By pulling out the bale 55, the right side of the bale A is pressed by the pull-out plate 152, so that the left side of the bale A protrudes to the left outside of the bale forming chamber 15. In FIG. 1, reference numeral 4a denotes a pick-up guide plate which guides the picked-up hay along the guide gap 4b to the bale forming chamber 15 and is provided so that its mounting position can be changed.

Further, as shown in FIGS. 16 to 17 and 29, a normally closed center detection switch 1 detects when the runner 97 is located at the center position.
56 and a normally open work clutch switch 157 that detects the engagement of the work clutch 139, a manual switch 158, the normally open bail pressure detection switch 63, and each of these switches 156, 15.
An alarm buzzer 160, which is an alarm device, is connected in series to the battery 159 via a line 7, and the alarm buzzer 160 is activated when the bail pressure exceeds a certain level.

The present embodiment is constructed as described above, and the hay picked up by the pick-up section 4 is transferred to the bale forming chamber 15 by the lower pipe conveyor 17.
upper and lower pipe conveyors 16, 17
A roll-shaped bale A is then formed. Now, when the diameter of the bale A is formed to be larger than a predetermined diameter, the chain guide 20 of the upper pipe conveyor 16 resists the fulcrum cross-over spring 62 due to the bale A pressure and maintains a constant position around the shaft 57. Angle α
When pushed upward, the switch 63 is turned on and the alarm device is activated to notify the operator that the veil A has been formed.

Therefore, when the traveling clutch 134 is disengaged via the traveling clutch lever 12, the starting plate 1
11. The binding clutch 86 is turned on via the switching arm 108 and the operation plate 103, and the twine 9 is turned on.
Binding by 1 begins. That is, while the runner 97 located at approximately the center of the binding case 78 is driven by the chain 83 and reciprocates from the center to the right, from the right to the left, and from the left to the center, as shown in the arrow direction in FIG. The twine 91 fed out from the delivery port 92 is wound around the outer periphery of the bale A in a spiral manner as shown in 1 to 5 in FIG. , as shown in the imaginary line in FIG.
The movement of the runner 97 is stopped until the locking pin 94 connected to the locking pin 94 abuts from one end edge 95a of the engagement hole 95 to the other end edge 95b, and the twine 91 at both ends of the bail A is wound multiple times. This is to prevent the bale A from losing its shape. And runner 97
When the winding of the twine 91 returns to the center position again, the pin 101 installed in the runner 97 comes into contact with the cam-shaped protrusion 99a of the cutter 99, lifts the cut portion of the cutter 99, and cuts the twine 91. .

That is, when the traveling clutch lever 12 is switched to the disengaged state, the clutch lever 114 is oscillated to the imaginary line position in FIG.
rotates counterclockwise around the shaft 117, the wire 109 is pulled, and the start plate 111 slides in the entry direction.During this, when the cam member 115 rotates over a certain range, the cam against the pin 119 The cam member 115 retreats under the guidance of the groove 120, and the clutch pin 118 and clutch lever 114
The starting plate 111 returns to its original off position by the force of the spring 110. In this way, the start plate 111 slides to the position shown in the phantom line in FIG. 20 by one action immediately after the travel clutch lever 12 is disengaged, and is normally held at the position shown in the solid line in the figure. At this time, the operating surface 111a pushes up the release pin 112 to switch the switching arm 108, and the pin 107 is released from the operation plate 103, thereby turning the binding clutch 86 on. When the clutch 86 is engaged, the runner 97 reciprocates with the switching arm 108 from the center to the right, from the right to the left, and from the left to the center. 108 is torsion spring 1
Runner 9 maintains a steady posture even with 06 force.
7 returns to the center position from the left side, the clutch pin 107 is moved to the operating surface 103a of the operation plate 103.
The operation plate 103 is slid to disengage the binding clutch 86 and stop the movement of the runner 97. Further, when the binding clutch 86 is engaged, the main and sub rotating bodies 89 and 93 rotate and the twine 9
1 is fed out forward through the delivery port 92 and the guide plate 98, and the twine 91 fed out onto the guide plate 98 is moved forward when the runner 97 moves to the right (first
(Left in Figure 9) The twine 9 slides on the slope 96a of the guide fitting 96 and is introduced into the guide hole 96b, and then the twine 9 is attached to the outer periphery of the bail A through the hole 96b.
1 is supplied, the runner 97 returns to the center position from the left side, and the pin 101 of the runner 97 is pushed into the cutter 99.
When the cutter 99 comes into contact with the cam-like protrusion 99a of the cutter 99, the twine 91 is cut and the binding is completed. On the other hand, when the traveling clutch lever 12 is in the disengaged state and it is desired to perform binding using the twine 91, the lever 114 is operated. In this case, the lever 114 is placed at the imaginary line position in FIG. If this is to be done, the lever 114 is once returned to the solid line position in the figure and then pulled up again to the original imaginary line position, thereby turning on the binding clutch 86 and starting the binding in the same way as in the previously described operation.

Next, operate the handle 126 to lock the lock member 129.
By disengaging the hook 128 from the door 7
When opening 3, the links 74, 75, 76
The chain guide 20 is moved upward by a certain angle β via the rod 72 and a gap is opened between the upper pipe conveyor 16 and the bale A to facilitate the removal of the bale A by sliding it laterally. It's on.

In addition, when taking out the left outer side of the bale A, since the winding end direction of the twine 91 is in the right direction with respect to taking out the bale A in the direction of the left broken line arrow in FIG. Twine 9
Even if contact resistance is applied to the end of the winding 1, the inconvenience that the twine 91 loosens in the tightening direction is prevented.

On the other hand, when lifting the pick-up part 4 to the highest position by operating the operating handle 43 at the end of the work, the pick-up part 4
Regardless of the adjustment position, by positioning the handle 43 in a substantially upright storage position, it can be stably maintained at substantially the same maximum height position.

In addition, since the hay picked up by the pick-up section 4 during work is conveyed to the bale forming chamber 15 by a single lower pipe conveyor 17 that also serves as bale formation, there is no possibility that the hay will become clogged due to poor transfer. Transported smoothly. Furthermore, the rotation of the pick-up finger 36 and the lower pipe conveyor 1
Since the rotations of 7 are synchronized, there is no difference in rotation, and it is possible to pick up the items well and transfer them to the conveyor 17.

"Effects of the Invention" As is clear from the above embodiments, the present invention provides a roll baler equipped with a pick-up section 4 for picking up straw, in which an operating handle 43 is provided to manually adjust the support height of the pick-up section 4 by rotational operation. A pedestal 4 on which the handle 43 is attached
5 is swingably provided on a rotating shaft 46, and the rotating shaft 46 is disposed at a position where the handle 43 and the pedestal 45 are rotated together to constantly raise the pick-up part 4 to a predetermined position. By rotating the handle 43, the support height of the pick-up part 4 during picking up work is adjusted, and by integrally rotating the handle 43 and the pedestal 45, the pick-up part 4 is raised and supported to a predetermined height. The support height of the pick-up section 4 can be easily changed at different times, and the pick-up section 4 in the non-working position can be easily returned to the working position, improving handling operability such as adjusting the height of the pick-up section 4. This makes it possible to easily improve the performance of the pick-up section 4 and prevent collisions of the pickup section 4.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the bale forming section, Fig. 2 is an overall side view, Fig. 3 is a plan view of the same, Fig. 4 is a plan explanatory diagram of the upper pipe conveyor section, and Fig. 5 is a - of Fig. 1. 6 is a perspective view, FIG. 7 is an explanatory plan view of the pick-up section, FIG. 8 is an explanatory side view of the same, FIG. 9 is an explanatory cross-sectional view of the pick-up lifting device section, and FIG. 10 is a vertical sectional view of the same, FIG. 11 is a partial plan view of the same, FIG. 12 is an explanatory diagram of the operating state of FIG. 10,
Figure 13 is an explanatory diagram of the upper pipe conveyor section,
4 is an explanatory plan view of the same, FIG. 15 is an explanatory cross-sectional view of the binding device section, FIG. 16 is an explanatory plan view of the same, FIG. 17 is an enlarged explanatory view of the same part, FIG. 18 is an explanatory bottom view of the runner section, Fig. 19 is an explanatory front view of the same, Fig. 20 is an explanatory rear view of the binding clutch section, Fig. 21 is an explanatory plan view of the same, Fig. 22 is an enlarged explanatory view of the binding clutch operation section, and Fig. 23 is an explanatory plan view of the same. 24 is a plan view of the door section, FIG. 25 is an enlarged view of the same part, FIG. 26 is an explanatory view of the drive system, FIG. 27 is a plan view of the bale drawing device, and FIG. 28 is the same part. FIG. 29 is an electric circuit diagram, and FIG. 30 is an explanatory diagram showing a bundled state. 4...Pickup section, 15...Bale forming chamber, 43...Operation handle (for adjusting pickup height), A...Bale.

Claims (1)

[Scope of utility model registration request] In a roll baler equipped with a pick-up section 4 for picking up straw grass, an operation handle 4 for manually adjusting the support height of the pick-up section 4 by rotational operation.
3, and a pedestal 45 to which the handle 43 is attached is swingably provided on a rotating shaft 46, and the handle 43 and pedestal 45 are rotated together to raise the pick-up part 4 to a predetermined position at all times. A roll baler characterized by having a rotating shaft 46.