JP2008295395A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent that root parts of grain culms conveyed are penetrated into the inner diameter of a coil spring and have adverse effects on grain culms-conveying performance, in a combine harvester having a control means that uses the coil spring in the vicinity of a conveying apparatus, such as, a discharged straw-conveying apparatus. <P>SOLUTION: In the combine harvester, a grain culm penetration-preventing body 55 constituted of a round rod having an outside diameter slightly smaller than the inside diameter of a coil spring 42, is provided so as to fit internally in the front end side (conveyance-starting end side for grain culms) of the coil spring 42, in order to prevent penetration of grain culms in the inside diameter of the coil spring 42. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a waste transporting device that feeds cereals threshed by a combine threshing device to a post-processing device such as a waste cutter.

  In the conventional combine, the threshing processed by the threshing device is post-delivered to a post-processing device such as a waste cutter while being sandwiched between the transport chain of the waste transport device and the sandwiching rail. The holding rail is constituted by a conveyance start end side rail and a conveyance end side rail that is slidably fitted to the conveyance start end side rail, and the transfer end side rail is operated by sliding (expanding / contracting). There is known one that can be switched between a position for shortening the koji conveyance distance and a position for increasing the kneading mushroom conveyance distance (for example, see Patent Document 1).

In addition, the transfer terminal side rail fitted inside the transfer start end side rail is biased to the shortening side via the coil spring, and one end of the release wire is connected to the base end side of the transfer end side rail. It is also known that the transfer end side rail can be slid with respect to the transfer start side rail by operating the operation lever to which the other end of the coil is connected against the biasing force of the coil spring. In this case, workability is also improved by configuring the operation lever to be operable from the combine control unit.
(For example, refer to Patent Document 2).
JP 2001-292630 A (3rd page, FIG. 2) Japanese Utility Model Publication No. 6-46285 (page 2-3, FIG. 1-FIG. 2)

  However, in Patent Document 2, the coil end is fitted inside the reverse U-shaped narrow transfer start side rail and the transfer end side rail is fitted, and the outer casing of the release wire is placed in the transfer start end side rail. Assembling is improved by attaching the coil spring in a state where it is exposed from the conveying start side rail as an improvement measure. There is a possibility that the strainer of the koji easily gets into the inner diameter of the coil spring, and if the amount of the koji is increased, there is a possibility of adversely affecting the grain conveying performance.

An object of the present invention is to solve the above-mentioned problem, and in a combine having an adjusting means using a coil spring in the vicinity of a conveying device for conveying the cereal, the cereal is included in the inner diameter of the coil spring. The first feature is that a pestle intrusion prevention body for preventing the entry of cereal is provided.
And as a 2nd characteristic, the said conveying apparatus is a waste conveying apparatus which sends back the grain threshing processed by the threshing apparatus, and the said adjustment means is an expansion adjustment means of the clamping rail with which a straw conveying apparatus is equipped. Yes.

According to invention of Claim 1, even if it is a combine which has the adjustment means using a coil spring in the vicinity of the conveying apparatus which conveys a corn straw, it is said that the corn straw conveyed enters into the inside diameter of the coil spring. It can be reliably prevented by the cereal culm entry prevention body.
And according to invention of Claim 2, the said conveying apparatus is a waste conveying apparatus which carries back the threshing processed by the threshing apparatus, and the expansion-contraction adjustment means of the clamping rail with which the said adjustment means is equipped with a straw conveying apparatus Therefore, it is possible to prevent the stock of the cereal to be conveyed from entering the inner diameter of the coil spring while improving the assembling property of the expansion and contraction adjusting means. Does not adversely affect

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a left side view of a combine 11 with a part broken away, FIG. 2 is a plan view of the same, and FIG. 3 is a right side view. The combine 11 is composed of a pair of left and right crawler travel devices 12 and 12. The frame 13 is supported, an engine 14 is mounted on the right side of the front portion of the body frame 13, and a driver seat 15 is provided above the engine 14.

  And in front of the traveling machine body 13, the pretreatment unit 16 that harvests and transports the cereals is supported so that it can be lifted and lowered. A threshing device 17 for selecting the threshed grain, and a post-processing device such as a waste cutter 21 (to be described later) while sandwiching the cereal (removal) processed by the threshing device 17 with the conveying chain 18 and the holding rail 19. A waste transporting device 23 is provided for later feeding.

  More specifically, the upper end of the transmission shaft case 25, which also serves as the frame of the pretreatment unit 16, is pivotally supported on a fulcrum 26 provided at the front portion of the body frame 13, and between the lower surface of the transmission shaft case 25 and the body frame 13. The hydraulic cylinder 27 as an actuator is interposed, and the hydraulic cylinder 27 is expanded and contracted to allow the pre-processing unit 16 to move up and down around the fulcrum 26 as a rotation center.

  On the other hand, a grain tank 28 for temporarily storing the selected grain is provided behind the driver's seat 15, and the grain stored in the grain tank 28 is stored in the grain tank 28. A fixed pipe (not shown) fixed to the lower end of the rear side, a vertical pipe 29 rotatably connected to the fixed pipe, and can be rotated integrally with the upper end of the vertical pipe 29 and can be raised and lowered in the vertical direction ( It can be discharged to the outside of the machine via a grain discharge auger 31 connected to a vertically elevating and lowering).

  In addition, a plurality of weed bodies 32 for weeding the harvested cereal grains are integrally attached to the weed body support frame 33 in the pretreatment unit 16, and the weed bodies 32 are weeded behind the weed body 32. Reaping device 34 for raising the cereal after ripening, reaping device 35 provided with a cutting blade 35a for cutting the stock of the culm caused by the motive device 34, and the culm harvested by the reaping device 35 A scooping and transporting device 36 that feeds and transports the cereal, and a handling depth transporting device 37 that detects the culm length of the harvested cereal culm behind the scoring and transporting device 36 and automatically adjusts it to an appropriate handling depth. The cereal conveying device is provided, and the cereal cocoon conveyed to the terminal end of the handling depth conveying device 37 is supplied to the threshing device 17 via the threshing feed chain 38.

  Next, a description will be given of an embodiment of the scouring and conveying device 23 that feeds the cerealed cereals (rejected waste) to the post-processing device 22 while being sandwiched between the transport chain 18 and the sandwiching rail 19.

  When the waste transporting device 23 does not want to perform cutting processing by the waste cutter 21 of the waste cereal discharged (released) from the waste transporting device 23, the transported waste is the waste processing device 23. In order to be discharged at a position that has passed through, the position at which the waste is discharged can be switched back and forth in the transport direction.

  That is, as shown in FIGS. 4 and 5, the holding rail 19 described above is supported by the machine body (not shown) in a state of being spring-biased so as to approach and separate from the transport chain 18, and at the transport start end side. It is formed with a transfer end side rail (round bar) 19b that is slidably fitted in a rail (pipe) 19a, and this transfer end side rail 19b slides (extends and contracts) with respect to the transfer start end side rail 19a. By operating, it is configured so that it can be switched between a position A for shortening the culm transport distance and a position A ′ for increasing the culm transport distance.

  More specifically, a support bar 41 that supports the conveyance start end side rail 19a from the machine body side is fixed in a substantially orthogonal state at a substantially lower middle portion of the transfer start end side rail 19a, and the both 19a and 41 are fixed. A rectangular reinforcing plate 43 having a locking hole 43a for locking one end of a coil spring (tensile pulling) 42 is fixed to the rear end side of the part.

  On the other hand, a long support plate 44 having a long hole 44a serving as an expansion adjustment margin of the transfer end side rail 19b is fixedly provided at a substantially intermediate portion on the lower side of the transfer end side rail 19b. A support 45a having a U-shaped cross section is fixed to the upper end of the support bar 45 that supports the transport end side rail 19b from the machine body side, and the support plate 44 is supported by the support 45a. The front end portion of the transport end side rail 19b is fitted into the transport start end side rail 19a, and the support bar 45 and the transport end side rail are used by using the pin 46 inserted into the elongated hole 44a of the support plate 44 and the receiving tool 45a. 19b is connected. Further, a locking hole 44b for locking the other end of the coil spring 42 is provided on the front end side of the support plate 44, so that the conveyance end side rail 19b is always in the contracting direction via the coil spring 42. Be energized.

  In addition, the operation panel 51 on the left side of the driver's seat 15 switches the holding rail 19 between expansion and contraction, that is, a position A for shortening the grain transporting distance of the clamping rail 19 and a position A ′ for increasing the grain transporting distance. A waste switching lever 52 (see FIG. 2) to be operated is provided, and a release wire 53 connected to the base of the waste switching lever 52 and the front end of the support plate 44 fixed to the conveyance end side rail 19b is provided. Thus, the conveyance end side rail 19b can be slid (expanded) with respect to the conveyance start end side rail 19a.

  As described above, when the holding rail 19 is contracted and adjusted to the position A that shortens the grain transporting distance of the holding rail 19, the waste rice cake discharged from the waste transporting device 23 is placed on the waste cutter 21. And the cutting process by the waste cutter 21 is performed. On the other hand, when the holding rail 19 is stretched and adjusted to the position A ′ where the holding speed of the holding rail 19 is increased, the discharging waste kernel is discharged from the discharging and conveying device 23 to the outside of the machine.

  As described above, the evacuation switching lever 52, the release wire 53, the coil spring 42, and the like constitute the expansion / contraction adjusting means B of the holding rail 19, but the coil spring 42 is easy to assemble and costs. Since it is attached in an exposed state in consideration, the strainer of the culm that is nipped and conveyed by the rejecting and conveying device 23 tends to enter the inner diameter of the coil spring 42, and if the amount increases, the cereal conveying performance is adversely affected. There was a risk of effect.

  Therefore, in the present invention, the culm intrusion prevention body 55 for preventing the cereal from entering the inner diameter of the coil spring 42 in the above-described exposed state is provided. The cereal intrusion prevention body 55 is fixed at the end of the reinforcing plate 43 that reinforces the fixing portion of the conveyance start end side rail 19a and the support bar 41, and more specifically, slightly smaller than the inner diameter of the coil spring 42. A round bar having a small outer diameter is welded and fixed so as to fit inside the front end side (the start side of the grain basket) of the coil spring 42.

  That is, according to the configuration described above, the expansion and contraction of the holding rail 19 provided in the straw transporting device 23 as the adjusting means using the coil spring 42 in the exposed state is provided in the vicinity of the waste transporting device 23 serving as a transporting device for transporting the cereal straw. Even in the combine 11 having the adjusting means B, the culm entry preventing body 55 prevents the stock of the cereal being conveyed from entering the inner diameter of the coil spring 42 while improving the assemblability of the expansion / contraction adjusting means B. Therefore, the coil spring 42 does not adversely affect the grain conveying performance.

  Although detailed explanation is omitted, as an adjusting means constituted by using an exposed coil spring in the vicinity of the waste transporting device 23, other than the present embodiment, for example, Japanese Utility Model Laid-Open No. 63-18040. 4 is a guide attached to the lower working surface of the end of the exhaust chain illustrated in FIG. 3 of Japanese Utility Model Publication No. 57-149748. There are a rod, a wrapping prevention plate and the like which are formed to extend at the lower end of the end of the waste chain illustrated in FIG. 2 of Japanese Utility Model Publication No. 58-68840.

  Moreover, as an adjustment means comprised using the coil spring of an exposed state in the vicinity of conveyance apparatuses other than the waste conveyance apparatus 23 in the combine 11, it is illustrated by FIG. 3 of Unexamined-Japanese-Patent No. 2004-222606, for example. There is a chain tension mechanism provided in the tip side transport body at the top of the pretreatment apparatus, a chain tension means provided in the ear side transport apparatus of the pretreatment section exemplified in FIG. 3 of JP-A-2006-2548424, The present invention can also be applied to these.

  By the way, the pinch rail 19 is contracted and adjusted to the position A where the pinch rail 19 is shortened by the waste changeover lever 52, so that the waste kernel 21 discharged from the waste conveying device 23 is discharged. When the cutting process is performed by dropping it down, as shown in the perspective view of the post-processing device 22 shown in FIG. 6, the rotation operation lever 63 fixed to one end of the fulcrum shaft 62 of the switching plate 61 is also connected to the linkage wire 81 ( 8 and 9), the switching plate 6 is also rotated upward while interlocking, and the upper part of the cutter 21 and the idle roller 64 is opened. By forming the cocoon guide 65 screwed on the lower surface side with a single plate, the cereal cocoon is prevented from entering between the switching plate 61 and the cocoon guide 65.

  Further, as shown in FIG. 7, the post-processing device 22 and the flat resin lower cover 71 integrally attached to the lower part of the post-processing device 22 are configured to be openable and closable with the Y axis in the figure as a rotation fulcrum. Although maintainability is improved, a fuel filling port 72 to a fuel tank (not shown) is formed in a notch shape in a plan view formed between the grain tank 28 and the waste transporting device 23 via a fueling pipe 73. If the right side plate 74 of the post-processing device 22 and the upper part of the fuel filler opening 72 cause interference when the post-processing device 22 and the resin lower cover 71 are opened, the right side plate is projected. You may provide the warming-like dripping 75 which consists of a flexible material in 74 interference parts.

  More specifically, as shown in FIGS. 8 and 9, the portion of the right side plate 74 of the post-processing device 22 where the interference with the fuel supply port 72 occurs, that is, the front lower portion of the right side plate 74 directly contacts the fuel supply port 72. After notching in a square so as not to hit, a warm-sag droop 75 having substantially the same size as this notch may be screwed only on the inner upper portion of the right side plate 74. The warm sag droop 75 attached in this way interferes with the upper portion of the fuel filler opening 72 when the post-processing device 22 and the resin lower cover 71 are opened, but the warm sag droop 75 is a flexible material. Therefore, neither damage nor deformation of the both 72 and 75 due to the interference occurs, and the dust and the like adhering to the upper part (cap) of the fuel filler port 72 at the time of the interference is wiped off by the warm droop 75. Can do. Further, when adjusting the linkage wire 81 routed inside the right side plate 74 that opens and closes the switching plate 61 in conjunction with the rejection switching lever 52, as shown in FIG. It is possible to easily perform the work without removing the right side plate 74 simply by lifting.

The left view of the combine partly broken. The top view of a combine. The right view of a combine. The side view of the rejection conveying apparatus of the state which shortened the clamping rail. The side view of the rejection conveying apparatus of the state which extended the clamping rail. The perspective view of a post-processing apparatus. The perspective view which shows the opening / closing structure of a post-processing apparatus and a resin-made lower cover. The side view which shows the structure of the right side board in a post-processing apparatus. The side view which shows the effect of the warmth-like dripping provided in the right side board of the post-processing apparatus.

Explanation of symbols

17 Threshing device 19 Clamping rail 23 Conveying device 42 Coil spring 55 Wheat grain intrusion prevention body B Adjusting means

Claims (2)

  In the combine having the adjusting means (B) using the coil spring (42) in the vicinity of the conveying device (23) for conveying the cereal, the cereal that prevents the cereal from entering the inner diameter of the coil spring (42). A combine comprising an intrusion prevention body (55).   The conveying device (23) is a waste transporting device for post-feeding the threshing processed by the threshing device (17), and the adjusting means (B) extends and contracts the holding rail (19) provided in the waste transporting device. The combine according to claim 1, which is an adjusting means.

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