JP3053058B2 - Stem and stalk holding and conveying device for agricultural work vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction in which a stem is held and conveyed by an endless rotating chain and a stem and stem holding rail, and a set interval of the stem and stem holding rail from the endless rotating chain. The present invention relates to a stalk-and-clamper conveying device for an agricultural work vehicle provided with a detection switch for detecting separation.

[0002]

2. Description of the Related Art The above-described stalk / culm transfer device is capable of detecting clogging of a culm or a volume by using a detection switch. In this type of transport device, conventionally, as shown in FIG. 5, a rail support rod 37 extending from a stem / culm holding rail 35,
The detection switch 5 is attached to a support frame 34 supporting a stem / culm holding rail 35 via a support frame 38 slidably supporting the
And the switch operation piece 42 as a detection target of the detection switch 5 is attached to the stem / culm holding rail 35. When the stem / culm holding rail 35 is separated from the endless rotating chain 33 by a set interval, the switch operation piece 42 is detected. Switch 5
By pressing, the detection switch 5 performs a predetermined detection.

[0003]

Heretofore, there have been cases where leaves and stems protruding around the stems and stems to be conveyed are caught by switch operation pieces and detection switches and cause clogging.
In addition, there is a possibility that the detection switch may be activated by contact with the leaves or the culm of the transported stalk, even if the detection switch is not in a state to be detected, for example, no clogging of the stem has actually occurred. An object of the present invention is to make it possible to detect the above-mentioned trouble while easily avoiding the occurrence of the trouble, and to simplify the structure by dividing the trouble.

[0004]

According to the present invention, there is provided a stem / culm conveying device for an agricultural work vehicle according to the present invention, wherein a rail support rod extending from the stem / culm holding rail is slidable. The inner side of the support frame, which is movably penetrated and accommodates a spring for biasing the stem support rail closer to the endless rotating chain by slidingly biasing the rail support rod. Rail support lock
On the side of the de, placing the detection switch, the detection Sui
The detection target of pitch, the receiving support of the spring
The rail support rod is provided so as to be slidable integrally with the rail support rod.

[0005]

[Function] When the stem-clamping rail approaches or separates from the endless rotating chain, the rail supporting rod slides with respect to the supporting frame, and the detection object moves together with the rail supporting rod to detect. The detection switch performs a predetermined detection operation by approaching or separating from the switch. The support frame covers the detection switch and the detection target so that the leaves and the culm of the transport stem are hard to contact.

[0006]

According to the present invention, the detection target body moves with the movement of the rail support rod , so that the detection switch can perform a predetermined detection. It has become easier to avoid the detection switch or the detection target being caught and clogging, or the detection switch being activated by the contact of the transport stem. Moreover, since there is no special need to cover, and, the detection target
Since the body is also used to support the spring, it is advantageous in terms of structure and economy.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a waste straw shredding device 10 and a waste straw bundling device 20 are attached to the rear of the threshing device 1, and a waste straw extending from the waste straw bundling device 20 to the rear of the machine. A straw pinching / conveying device 30 and a release guide 4 located at a conveying end portion of the discharge straw pinching / conveying device 30
And a threshing device 1
The threshing and discharging straw discharged from the handling room (not shown) of the above is transported to the rear of the machine body in a sideways posture by the discharging straw transporting and transporting device 2 and dropped on the discharging straw shredding device 10, It constitutes a threshing and discharging straw processing unit of the combine.

That is, the exhaust straw shredding device 10 is provided with an exhaust straw receiving port 11 located below the transport end portion of the exhaust straw transporting device 2, and the exhaust straw receiving port 1 is provided.
1 is provided so as to be switched between an ascending open position indicated by a virtual line and a descending closed position as indicated by a solid line in FIG. 1 by swinging around a shaft 12a in the lateral direction of the machine. When the lid 12 is opened, threshing waste straw from the waste straw transporting device 2 is driven and rotatably provided inside the waste straw shredding device 10 by a pair of mutually parallel cutter straws 1 in the direction of the waste straw stem.
Fall on 3,14. Then, one cutter shaft 1
A plurality of disc cutters 15 provided at predetermined intervals in the axial direction, and a plurality of disc cutters 16 provided at the other cutter axis 14 at predetermined intervals in the axial direction. The chopped waste straw is dropped into the lower discharge port 17 from between the cutter shafts 13 and 14.
Thereby, the waste straw shredding device 10 shreds the threshing waste straw and drops and discharges it.

When the lid 12 is closed, the outer surface of the lid 12 causes the threshing waste straw falling from the waste straw transporting device 2 to flow down to the rear side of the machine body in a sideways posture, and the waste straw binding device 20
To supply. Then, the packer 2 of the waste straw bundling device 20
1 thrusts and feeds the threshing waste straw into the binding space 22 in a sideways posture, and when the threshing waste straw collected in the binding space 22 reaches a set amount, a string provided in a string supply unit located above the binding space 22. The supply needle 23 supplies the cord to the knot located below the binding space 22, and the knot building 24 and the string holder 25 provided in the knot actuate the knot,
Further, the release arm 26 located on the side of the knot portion pushes the door 27 out of the binding space 22 so as to eject the bound straw bundle so as to pop out. As a result, the waste straw bundling device 20 binds the threshing waste straw by the set amount, and discharges it to the rear of the machine in a long straw state without shredding. The discharged straw discharging device is configured to transport the discharged straw bundle discharged from the discharged straw binding device 20 in a sideways posture by the discharging straw holding and transporting device 30 so as to pinch the tip side so that the stock side hangs down, and transport the bundle to the rear of the machine and drop. The release guide 4 is used to release the waste straw bundle so that the waste straw bundle falls down in a vertical position and stands on the field.
By restricting the bundle to the vertical position, the bundle of straw from the straw bundling device 20 is set up in the field.

The discharge straw holding and conveying device 30 is rotatable to a chain case 32 extending rearward from the transmission case 31 connected to the knot cover 28 and the frame portion 29 of the discharge straw binding device 20. , And an endless rotating chain 33 for conveying a stirrer, which is attached to the stirrer, and a stirrer sandwiching rail 35, which is attached to a support frame 34 extending rearward from the cord supply section of the stirrup bundling device 20, to the rear of the machine. . The endless rotation chain 33 is provided with the transmission case 3
1 is driven in the moving direction F by the rotating power transmitted from the waste straw bundling device 20 via the first side, so that the transfer-side portion of the endless rotating chain 33 facing the waste straw sandwiching rail 35 has the chain case 32. It is configured to move from the base end side to the extension end side along the discharge straw transporting holding rail 35. The discharge straw holding rail 35 is attached to the support frame 34 at two locations on the transport start end side and the transport end side by the mounting structure shown in FIG. 3 and FIG. And biased towards the approaching side. That is,
A rail support rod 37, which is swingably extended from a discharge straw holding rail 35 via a connecting pin 36, is fixed to the support frame 34 by a support frame body 38 made of a bent sheet metal.
And a stopper pin 39 made of a roll pin attached to the rail support rod 37 to prevent the support frame 38 from coming off. A coil spring 41 housed in a support frame 38 is fitted over the rail support rod 37, and one end of the spring 41 is supported by the support piece 38a, and the other end of the spring 41 is connected to the stopper via a spring receiving plate 40. It is received and supported by the pin 39, and slides and biases the rail support rod 37 in a direction protruding from the support frame body 38 to the side where the discharged straw holding rail 35 is located, thereby endlessly rotating the discharged straw holding rail 35. It is urged to approach the chain 33. Therefore, the discharged straw holding and conveying device 30 holds the bundle of discharged straw from the discharged straw bundling device 20 by the endless rotating chain 33 and the discharged straw holding rail 35 by the urging force of the spring 41, and moves the endless rotating chain 33. Conveyed by. In addition, as shown in FIG. 1, a projection 35 provided on the transport end side of the waste straw holding rail 35 is provided.
a is to apply a transfer force by the endless rotating chain 33 while giving a transport resistance to the discharged straw bundle on the sandwiching rail side, thereby rotating the discharged straw bundle. Then, the base side of the straw bundle spreads due to the centrifugal force due to the rotation, and when it falls into the field, it is easy to stand on a wide bottom area.

As shown in FIGS. 3 and 4, on the side of the rail support rod 37 inside the one of the pair of support frames 38, 38 located on the lower side of the conveyance,
The detection switch 5 is attached to the switch mounting piece 3 of the support frame 38.
When the rail support rod 37 slides with respect to the support frame 38 at a predetermined interval from the endless rotating chain 33, the stopper pin 39 One end is in contact with the operation section 5a of the detection switch 5, so that the detection switch 5 is switched from cut-off to on. In addition, the detection switch 5 is linked to an engine stop device 6 and a display device 7. As the set interval at which the stopper pin 39 turns on and operates the detection switch 5, an interval formed when a straw is clogged between the endless rotating chain 33 and the discharged straw holding rail 35 is set.

That is, the detection switch 5 and the stopper pin 39 which is a switch operating body are covered with the support frame 38, and the leaves and stems protruding from the straw bundle to the periphery come into contact with or are caught by the detection switch 5 and the stopper pin 39. While avoiding the above, the detection switch 5 detects whether or not a straw is clogged in the discharge straw holding and conveying device 30. When the straw is clogged, the detection switch 5 outputs the detection result as an electric signal to the engine stopping device 6. And output to the display device 7. Then, the engine stopping device 6 and the display device 7 determine that the waste straw is clogged, and the engine stopping device 6 includes the waste straw holding / conveying device 30 and the waste straw bundling device 20 for supplying the discharged straw to the carrying device 30. Stop the engine (not shown), which is the power source of various devices,
The display device 7 operates a display lamp and a notification buzzer (not shown). As a result, it is possible to prevent the straw from being further clogged in the discharge straw holding and conveying device 30, and to notify the occurrence of the straw clogging.

In the case of the above-described embodiment, the structure can be made advantageous by using the stopper pin 39 for receiving the spring as the switch operating body.

The discharge guide 4 is mounted on the support frame 34 by a mounting structure shown in FIG.
That is, the support pipe 8 extending from the discharge guide 4
Is inserted into a support frame 34 made of a pipe, and the support pipe 8 is prevented from coming off by a fixing bolt 9 attached to an end of the support frame 34. Support pipe 8
Is provided with a plurality of bolt holes 8a arranged in the longitudinal direction. That is, by adjusting the insertion length of the support pipe 8 into the support frame 34 and changing the bolt hole 8a into which the fixing bolt 9 is inserted, the discharge guide 4 is discharged from the discharge straw holding and conveying device 30. The mounting position of the release guide 4 is adjusted so as to appropriately act on the straw bundle, or the support pipe 8 is inserted into the support frame 34 as long as possible so that the release guide 4 is stored as close to the support frame 34 as possible. .

[Other Embodiments] A threshing transport device for nipping and conveying threshing stems by a threshing feed chain and a nipping rail, a nipping and conveying device for transporting cut stems and culms from a cutting device to a threshing transport device, and The present invention can be applied to a nipping and conveying device, such as a nipping and conveying device for a binder, that uses various stems and stems other than threshing straw as an object to be conveyed, and a nipping and conveying device equipped in various work vehicles other than the combine. Furthermore, in addition to the case of employing a switch for detecting clogging as a detection switch, the case of employing a switch for detecting the volume of a transport stem, and further employing a non-contact type switch using magnetism. The present invention can also be applied. Therefore, the waste straw holding rail 35 is referred to as a stem / culm holding rail 35, and the waste straw holding / transporting device 30 and the various transport devices are collectively referred to as a stem / culm holding / transporting device 30. The detection switch 5 and the various switches are collectively referred to as a detection switch 5 that detects the separation of a set interval from the endless rotation chain of the stem-and-culm holding rail, and the stopper pin 39 is referred to as a detection target 39.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a side view of a threshing and discharging straw processing unit of a combine.

FIG. 2 is a plan view of a threshing and discharging straw processing unit of the combine.

FIG. 3 is a side view of a discharge straw holding rail mounting portion.

FIG. 4 is a perspective view of a detection switch mounting portion.

FIG. 5 is a side view of a conventional detection switch mounting portion.

[Explanation of symbols]

 5 Detection Switch 33 Endless Rotating Chain 35 Stem Stem Nipping Rail 37 Rail Support Rod 38 Support Frame 39 Detected Object 41 Spring

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 62-39439 (JP, U) Japanese Utility Model Sho 57-31720 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01D 61/00-61/04 A01F 17/02 A01F 12/10

Claims (1)

(57) [Claims] An endless rotation chain (33) of the stem and stem holding rail (35), wherein the endless rotation chain (33) and the stem and stem holding rail (35) are configured to sandwich and transport the stem and stem. ), Comprising a detection switch (5) for detecting the separation of a set interval from the stalk culm holding and conveying device of the agricultural work vehicle, the rail support rod (37) extending from the stalk culm holding rail (35). Is slidably penetrated, and the rail support rod (37) is slidably biased to move the stem / culm holding rail (35) to the endless rotating chain (3).
The rail support rod (3 ) inside a support frame (38) in which a spring (41) biasing toward (3) is housed.
The detection switch (5) is arranged on the side of 7).
The detection target (39) of the detection switch (5) is
A stem and stalk holding and conveying device for an agricultural work vehicle, the stalk and stem device being slidably provided integrally with the rail support rod (37) in a state of receiving and supporting the ring (41) .