JP4594793B2 - Receiving and removing structure of threshing device - Google Patents

Description

  The present invention forms a check opening that is opened and closed by a swingable cover on the side of the threshing device, and the receiving mesh portion on the check opening side of the circumferentially divided type receiving net provided along the lower side of the handling cylinder It is related with the receiving net removal structure of the threshing apparatus comprised so that attachment or detachment was possible from the inspection port which open | released.

  For example, as disclosed in Patent Document 1, the receiving net attaching / detaching structure integrally supports the receiving net part to be attached / detached to the cover, and opens the cover so that the receiving net part is attached below the handling cylinder. That is configured to move from the inspection port to the outside of the inspection port, or as disclosed in Patent Document 2, the receiving net portion to be detached is screwed and connected to the threshing frame, and the cover is opened to be exposed. What constituted the receiving net part to be detached from a threshing frame is known.

Japanese Patent Laid-Open No. 8-70680 JP-A-11-155347

  In the former structure shown in Patent Document 1, simply by opening the cover, the receiving net part is also removed integrally with the cover, which is convenient for operations such as removing clogging inside the handling chamber, In order to repair or replace the receiving net part alone, it is necessary to remove or attach the receiving net part from the cover using a tool, which is a troublesome operation.

  In addition, when performing maintenance or cleaning of the sorting section below the handling room, the receiving net part is removed together with the cover and a part of the handling room is opened, so that it remains in the handling room as soon as the cover is opened. In some cases, the processed material falls on the sorting section, which obstructs the maintenance and cleaning of the sorting section.

  Further, in the former structure shown in Patent Document 2, a part of the handling chamber is not opened as soon as the cover is opened. It is necessary to perform screw operations at the inner end and the outer end of the net portion to remove or attach the receiving net portion, which is a troublesome operation.

  The present invention has been made paying attention to such points, and its main object is to make it possible to easily attach and detach the receiving net part.

1st invention divides | segments the receiving net | network deployed along the downward direction of a handling cylinder in the circumferential direction, forms the inspection port opened and closed with a cover in the side part of a threshing apparatus, The said inspection port side of the said receiving net | network A threshing device receiving network detachment structure configured to be detachable from an inspection opening in which the receiving network part of the
The inner end portion of the receiving net portion to be detached is detachably locked to a support frame fixed below the handle cylinder, and the outer end portion of the receiving net portion is pressed and fixed at a predetermined mounting position by a closed cover. configured,
The threshing frame is equipped with a locking member that temporarily receives and supports the outer end portion of the receiving net portion at a predetermined mounting position, and the locking member is biased in the receiving net locking direction .

  According to the above configuration, when the cover is opened, the pressing support of the outer end portion of the receiving net portion is released, and the receiving net portion is extracted from the inspection port by removing the inner end portion of the receiving net portion from the support frame. Can do. Conversely, the inner end of the receiving mesh part inserted from the inspection port is locked to the support frame, the outer end of the receiving mesh part is closed to the predetermined mounting position, and the cover is closed. Can be fixed to.

  Therefore, according to the first invention, the openable / closable cover uses the detachable receiving net part as a member for fixing and holding it in a predetermined posture, so that no tool is required to detach the receiving net part. It was excellent in desorption workability.

  According to the above configuration, since the outer end portion of the receiving net portion is elastically locked by the locking member, the receiving net portion is held in a predetermined mounting posture only by opening the cover, and remains in the handling chamber. The processed product does not immediately fall into the lower sorting section. Further, the outer end portion of the receiving mesh portion is freed by moving the locking member to the locking release position against the urging force, and the receiving mesh portion can be extracted from the inspection port.

  When mounting the receiving net part, first, the receiving net part is inserted into the inspection port, the inner end of the receiving net part is locked to the support frame, and then the outer end of the receiving net part is moved to a predetermined mounting position. . In this case, the retaining member is moved against the urging force, and the retaining member is urged and swung while the outer end portion of the receiving mesh portion is moved to the predetermined mounting position. The outer end portion of the portion can be temporarily received and held at a predetermined mounting position. Thereafter, the cover is closed and fixed, so that the receiving net portion is fixed at an appropriate working position.

  Accordingly, the opening and closing of the cover and the attachment / detachment of the receiving net part can be performed in sequence without using a tool, and the attaching / detaching workability of the receiving net part is further improved.

According to a second invention, in the first invention,
The movement of the locking member in the unlocking direction is configured to be prevented from being pressed by the cover in the closed position.

  According to the above configuration, by closing the cover, the locking member is firmly fixed to the position where the outer end portion of the receiving net portion is locked, and the portion other than the outer end portion of the receiving net portion is directly covered by the cover. The leakage area of the receiving net part can be ensured as compared with the case where it is pressed and supported.

According to a third invention, in the first or second invention,
It said cover is pivotally supported so as to be rotationally opened and closed in the threshing frame, in which are provided with a pressing action portion of the received network pressing fixed fulcrum near the cover.

  According to the above configuration, the outward force acting on the receiving net part during the threshing operation is received in the vicinity of the pivotal support part of the cover, that is, the cover part having high strength, and the receiving net is not deformed. The fixing function of the part is demonstrated reliably.

  FIG. 1 shows the entire side surface of the combine according to the present invention, and FIG. 2 shows the entire plane. The combine includes a traveling unit 2 having a pair of left and right crawler traveling devices 1, a driving unit 3 with a cabin, an axial flow type threshing device 4 configured in a full throwing type, and a screw type unloader 5. A feeder 7 for transporting the harvested crops, which is mounted on the front part of the threshing device 4 so as to be swingable up and down around the fulcrum p, is disposed at the front end of the threshing device 4. It has the structure where the cutting part 8 which has the cutting width of substantially the same width was connected.

  The mowing unit 8 has a structure in which a clipper-type mowing device 9 and an auger 10 that transversally feeds the harvested crop and feeds it to the starting end of the feeder 7 are installed. The cutting part 8 is swung up and down integrally with the feeder 7 by the expansion and contraction operation of the hydraulic cylinder 11 installed therebetween. In addition, a scraping reel 12 for scraping the planted crops backward is provided above the front part of the cutting unit 8.

  As shown in FIG. 3, the upper half of the threshing device 4 is provided with a handling chamber 17 in which a handling cylinder 16 in which tooth handling teeth 15 are spirally planted is pivotally supported in the front-rear and horizontal directions. A receiving net (concave) 18 is provided along the lower side of the container, and the processed material leaked from the receiving net 18 is disposed below the handling chamber 17 in the first (fine), second, and waste. A sorting unit 19 for sorting dust is provided.

  The sorting unit 19 is equipped with a sorting case 20 that screens the processed material leaked from the receiving net 18 while swinging and moving backward, and the front end of the sorting unit 19 faces the sorting case 20. Kara 21 for supplying the sorting air is provided, and at the rear end of the threshing device 4, large straw waste discharged from the dust feeding port 22 formed at the lower rear end of the handling chamber 17, and A rotating chopper 24 is provided for shredding the straw scraps discharged from the dust outlet 23 formed at the rear end of the sorting unit.

  The receiving network 18 is divided into two receiving network portions 18a and 18b each divided into two in the front-rear direction and each of the front half and the rear half divided into two in the circumferential direction. As shown in FIGS. 5 to 8, each of the receiving net portions 18 a and 18 b is formed by attaching a punched steel plate 27 to a partially arcuate support frame 26, and these receiving net portions 18 a and 18 b are detached and attached as follows. It has come to be.

  As shown in FIGS. 9 to 11, a support frame 28 for fixing the receiving net is fixedly arranged in the lower part of the handling chamber 17. Of the four receiving net portions 18 a and 18 b constituting the receiving net 18, The inner receiving net portion 18a swings and releases a handling cylinder cover 29 that covers the upper portion of the handling chamber 17 around a fulcrum a inside the machine body, thereby along the arc-shaped rail portion 28a provided in the support frame 28. It can be inserted and removed from the upper part of the handling room. Further, the support frame 28 is provided with a support frame portion 28b having a U-shaped cross-section extending substantially along the entire length of the handling chamber 16 and located immediately below the handling cylinder 16, and a locking groove formed in the support frame portion 28b. 39, the inner end portion 37 of the receiving net portion 18b located outside is engaged and supported. The inner end portion 37 of the receiving net portion 18b located outside is bent and formed in a cylindrical shape.

  A threshing frame 30 having a square pipe structure is provided over the entire length of the handling chamber 17 at the upper lateral side of the handling chamber 17, and a catching member 31 for supporting the receiving net swings around the fulcrum b on the threshing frame 30. It can be opened and closed. The locking member 31 is oscillated and biased by a torsion spring 32 provided at the fulcrum b, and the outer end of the receiving net portion 18b is locked by the locking member 31 that is oscillated and biased. Thus, it is temporarily received and supported at a predetermined mounting position.

  An inspection port 33 is formed on the laterally outer side of the handling chamber 17 over the entire length of the handling chamber for attaching and detaching the outer receiving mesh portion 18b, cleaning the sorting portion 19, and the like. 34 is occluded. The cover 34 is connected to the threshing frame 30 so as to be swingable around a fulcrum c. The cover 34 is lifted upward and held by a gas spring 35 to keep the inspection port 33 open. The inspection port 33 can be closed by pulling and swinging the cover 34 against the gas spring 35 and locking the lower part thereof to the locking mechanism 36. .

  The inner surface of the cover 34 in the vicinity of the fulcrum c is formed as a pressing portion 34a. When the cover 34 is in the closed position, the pressing portion 34a supports the locking member 31 from the outside. This prevents the locking member 31 from swinging in the locking release direction.

  When detaching the outer receiving net portion 18b, first, the handle 38 below the cover 34 is operated to release the locking of the locking mechanism 36, and the cover 34 is lifted and swung to be held in an open position. To do. When the cover 34 is opened, the pressing portion 34a releases the contact pressing of the locking member 31, but the locking member 31 maintains the receiving net support state by the swinging urging force. Next, by manually swinging the locking member 31 upward against the torsion spring 32, the locking of the outer end of the receiving net portion 18b can be released, and the receiving net portion 18b is moved to the inner side. After swinging outward with the locking portion of the end portion 37 as a fulcrum, the receiving net portion 18 b can be removed from the locking groove 39 and taken out from the inspection port 33.

  In attaching the receiving net portion 18b, first, the receiving net portion 18b is inserted into the inspection port 33 in a slightly tilted posture, and the inner end portion 37 is engaged with the engaging groove 39. The receiving net portion 18b is swung upward with fulcrum as a fulcrum. In this case, the locking member 31 is lifted and swung against the torsion spring 32, and the outer end portion of the swiveled receiving net portion 18b is moved to a predetermined mounting position. In this state, the outer end portion of the receiving net portion 18b can be temporarily received and held at a predetermined mounting position by urging and swinging the locking member 31. Thereafter, the cover 34 is closed and fixed, and the pressing portion 34a of the cover 34 abuts and presses the locking member 31 from the outside, so that the receiving net portion 18b is fixed at an appropriate operating position.

  [Another Example]

  The present invention can also be implemented in the following forms.

  (1) In the above embodiment, with the outer end portion of the receiving net portion 18b temporarily received by the locking member 31 at a predetermined mounting position, the backward movement of the locking member 31 is performed by the pressing action portion 34a of the cover 34. Although it is configured to prevent contact, it is implemented with a structure in which the outer end portion of the receiving net portion 18b temporarily received by the locking member 31 or other appropriate place deviated from the leakage surface is pressed and supported by the pressing action portion 34a of the cover 34. You can also.

  (2) As the locking member 31 for temporarily receiving and supporting the outer end portion of the receiving net portion 18b at a predetermined mounting position, it is configured in a pin-like shape that is slidable and retractable and is projected and urged in the locking direction. Can be carried out in a form of engaging with a locking hole formed in the outer end of the receiving net portion 18b. In this case, the pressing action portion 34a of the cover 34 is made to act on the outer end portion of the receiving net portion 18b or other appropriate place away from the leakage surface.

Combine side view Overall plan view of combine Longitudinal side view of threshing device Longitudinal front view of threshing device Development view of inner receiving net Front view of inner receiving net partial receiving net Exploded view of the outer receiving net Front view of outer receiving net partial receiving net Longitudinal front view showing the open state of the threshing device Longitudinal front view showing a state where the receiving net is being installed Longitudinal front view showing the receiving net installed state

4 Threshing device 16 Handling cylinder 18 Receiving net 18b Receiving net part 28 Support frame 30 Threshing frame 31 Locking member 33 Inspection port 34 Cover 34a Pressing action part 37 Inner end part
c Cover fulcrum

Claims (3)

The receiving net deployed along the bottom of the barrel is divided in the circumferential direction, and an inspection opening that is opened and closed by a cover is formed on the side of the threshing device, and the receiving net portion on the inspection opening side of the receiving net is opened. The threshing device receiving and detaching structure configured to be detachable from the inspection port,
The inner end portion of the receiving net portion to be detached is detachably locked to a support frame fixed below the handle cylinder, and the outer end portion of the receiving net portion is pressed and fixed at a predetermined mounting position by a closed cover. configured,
The threshing frame is equipped with a locking member that temporarily receives and supports the outer end portion of the receiving net portion at a predetermined mounting position, and the threshing is biased in the receiving net locking direction. Receiving and removing structure of equipment. The receiving net attaching / detaching structure of the threshing device according to claim 1 , wherein movement of the engaging member in the unlocking direction is prevented from being pressed by the cover in the closed position . 受網desorption structure of the cover is pivotally supported so as to be rotationally opened and closed in the threshing frame, threshing apparatus according to claim 1 or 2, wherein are provided with a pressing action portion of受網pressing fixed fulcrum near the cover.

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