JP2009011262A - Threshing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clog elimination structure of a transporting apparatus of a threshing machine to decrease the leakage of a threshed product during transportation while easily and quickly eliminating the clogging in transportation. <P>SOLUTION: A bracket 28 and an engaging part 29 are formed on the circumference of a cleaning hole 21, and an openable lid 26 is provided with a flange 26A attached and fixed to the bracket 28 and an engaging object 26c to be engaged to and held by the engaging part 29. The protruding length of the engaging part 29 from the circumference is set to unable the attaching of the flange 26A when the engaging object 26c is brought into contact with the extension end of the engaging part 29. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is provided with a lateral feed transport device that receives a sorting processed product from the sorting processing unit and transports it to a post-processing step, and receives the transport processed product from the lateral feed transport device and lifts it to the post-processing step. The present invention relates to a threshing processing apparatus in which a feeding device is provided, a cleaning port is formed at a delivery site between the transverse feeding and conveying device and the lifting device, and an open / close lid is provided to close the cleaning port.

At the delivery site from the lateral feed conveying device to the lifting device, the conveyed product may be clogged. In that case, it is necessary to remove it manually to eliminate the clogging.
For the removal work, conventionally, at the above-described delivery site, a relay transfer case for connecting the lateral transfer transfer device and the lift transfer device is provided, and the relay transfer case is connected by a left and right split case part. It was.
Specifically, a dividing line is set along the conveying direction of each conveying device, and a connecting flange portion is provided for each of the two divided case portions along the dividing line. On the other hand, from the viewpoint of easily and quickly performing connection and disconnection operations, in addition to the flange portions being connected to each other via a fixture such as a bolt, one flange portion is engaged as an engagement piece (in the publication) No. 37) and an engagement long hole portion (number in the publication: 38) as a locking portion on the other flange portion.
Further, on the opposite side of such an engagement structure and 180 ° in the circumferential direction, a clamp metal fitting (number in the publication: 14) that sandwiches both flanges in a state where the flanges face each other is provided. In a state in which it is inserted into the engagement long hole portion and attached, the joining flange portions are clamped and connected by a clamp fitting, and the split case portion is connected (Patent Document 1).
JP-A-10-201353 (paragraphs [0007] [0013], FIG. 6)

In the configuration as described above, even if the engagement piece is not inserted into the engagement elongated hole, the flange portions can be connected to each other with a bolt, or both flange portions can be connected to each other with a clamp fitting. It was possible.
However, in that case, since the engagement piece is not inserted into the engagement long hole, there is a concern that there is a gap between the flange portions at that portion, and the conveyed product may leak. .

  An object of the present invention is to provide a threshing treatment apparatus in which leakage of a conveyed product is reduced while the conveyance clogging can be quickly and easily eliminated.

〔Constitution〕
According to the first aspect of the present invention, a bracket for attaching the opening / closing lid with a fixture and an engaging portion for hooking and engaging one end of the opening / closing lid are formed on the periphery of the cleaning port, and the bracket is attached to the opening / closing lid. A flange portion attached and fixed to the locking portion and a locked portion to be locked and held by the locking portion are provided, and an extension length of the locking portion from the peripheral edge is set so that the locked portion is the locking portion. The flange portion is set so as to be in a position deviating from a predetermined position while being in contact with the extended end.

[Action]
To set the open / close lid in the closed state, the locked portion of the open / close lid is engaged with the locking portion of the transport device, and the flange portion of the open / close lid is attached to the bracket of the transport device with a mounting tool. Can be.
However, as a situation that is assumed that the locked portion of the opening / closing lid is not engaged with the locking portion of the transport device, for example, as shown in FIGS. 6 and 7, the locked portion 26c of the opening / closing lid 26 is used. This is a case where it contacts the extended end of the latching portion 29 of the transport device. In such a case, since the flange portion 26A of the opening / closing lid 26 is located at a position deviated from a predetermined position with respect to the bracket 28 of the transport device, the flange portion 26A and the bracket 28 are attached by a fixture. Cannot be consolidated.
Then, the operator notices that the locked portion 26c of the opening / closing lid 26 is not engaged with the locking portion 29 of the transport device, and the work can be performed again. Can be reduced.

〔effect〕
Connecting the flange and bracket in a state where the latched part of the opening / closing lid is not engaged with the latching part of the transport device, with only a slight change in the relationship between the latching part and the latched part It was possible to avoid this, and it was possible to reduce the chance of leakage of the processed material at the opening / closing lid.

〔Constitution〕
The characteristic configuration of the second invention is that the bracket and the locking portion are provided in a parallel state, and the operation and effect thereof are as follows.

[Function and effect]
To attach the open / close lid, perform the operation of fitting the open / close lid in a predetermined position so that the flange portion of the open / close lid is placed in parallel with the bracket attached to the periphery of the cleaning port. The locking part may come into contact with the tip of the locking part attached to the edge of the cleaning port. Therefore, the flange portion may be attached and fixed to the bracket in a state where the locked portion is not locked to the locking portion. This point was also mentioned in the first invention.

In the second invention, for example, as shown in FIGS. 6 and 7, the locking portion 29 is configured in parallel to the bracket 28, and therefore, in the parallel direction, compared to the case where the locking portion 29 is not parallel, The length protruding from the periphery is the longest.
On the other hand, when the above-described assembly error occurs, the opening / closing lid 26 is brought close to the flange portion 26A of the opening / closing lid 26 so as to be mounted at a predetermined position in parallel with the bracket 28. As described above, Since the locking portion 29 is in the most protruding state, the locked portion 26B of the opening / closing lid 26 can be received by the locking portion 29 at a position sufficiently away from the edge of the cleaning port 21.

This means that the opening / closing lid is received in a state before reaching the predetermined position, so that it is easy for the operator to notice a mistake in the assembly, and it is easy for the operator to perform correction work.
Therefore, the length of the locking portion can be effectively utilized by disposing the locking portion in parallel with the bracket in order to prevent a mistake in assembling the locked portion with the tip of the locking portion.

〔Constitution〕
According to the third feature of the present invention, the bracket and the locking portion are mounted on an arc surface of a transfer case in the transfer device, and a separation angle in a circumferential direction between the bracket and the lock portion is set. The effect is as follows, which is set to be smaller than 90 °.

[Function and effect]
It can be said that the setting error of the opening / closing lid is less when the circumferential angle between the bracket and the locking portion is set to be smaller than 90 °. The reason for this will be described.
For example, as shown by the solid lines in FIGS. 6 and 7, the locked portion 26c of the opening / closing lid 26 abuts the extended end of the locking portion 29, and the opening / closing lid 26 cannot be attached. In order to perform an operation for attachment, for example, as shown by a two-dot chain line in FIGS. 6 and 7, the flange portion 26 </ b> A of the opening / closing lid 26 enters the lower portion of the bracket 28 while sliding the opening / closing lid 26 downward. Perform the operation.

  Then, for example, as shown by a two-dot chain line in FIG. 6 and FIG. I can't. Thus, the operator can recognize that the opening / closing lid 26 cannot be normally assembled.

  For example, the circumferential angle between the bracket 28 and the locking portion 29 shown in FIG. 6 is 90 °, and the spacing between the bracket 28 and the locking portion 29 shown in FIG. The angle is set to 90 ° or less. When both inclination angles θ1 and θ2 are compared, θ1 is larger.

Then, for example, as shown in FIGS. 6 and 7, the inclination angle θ1 is larger when the circumferential angle between the bracket 28 and the locking portion 29 is smaller than 90 °, and the inclination angle θ1 is thereby increased. A worker with a larger angle is easier to recognize.
Therefore, it can be said that the case where the angle is smaller than 90 ° is an effective means with a low tendency to assemble an incorrect opening / closing lid.

  The threshing processing apparatus mounted on the combine will be described. As shown in FIG. 1, the harvested cereal mash conveyed from the pre-harvest processing unit (not shown) is held by the threshing feed chain 1, and the tip portion of the held cereal shed is transferred into the handling chamber 2. A handling cylinder 3 is provided in the handling chamber 2, and the handling action is applied to the harvested cereal mash by the handling cylinder 3, and the processed material subjected to the handling process is leaked from the receiving net 4.

  A sorting processing unit A is provided below the receiving network 4. As shown in FIG. 1, the sorting processing unit A arranges a grain pan 5 that receives a threshing processed product below the receiving net 4 and a variable opening type chaff sheave 6 that is located on the lower side of the cereal conveyance. A lower grain pan 7 and a grain sieve 8 on the lower side of the grain straw transport are arranged at the lower side, and the wind from the rice cake 9 is applied to the processed material leaking from the receiving net 4 to add wind sorting. Yes.

  On the lower transport side of the chaff sheave 6 is a front strollerk 10 that applies a separation process to a processed product containing a large amount of waste straw discharged from the dust outlet of the handling chamber 2, and a rear chaff sheave on the lower side in the grain conveying direction. 11 and rear Strollac 12 are arranged to separate and collect the grains mixed in the waste straw.

  Glen pan 5, chaff sheave 6, lower gren pan 7, glen sheave 8, front strola rack 10, rear chaff sheave 11, and rear strola rack 12 are integrated into sheave case 13. The sheave case 13 is configured to be driven to swing by a front swing arm 14 and a rear eccentric drive mechanism 15.

  With the above-described configuration, the sheave case 13 is driven to swing, so that the processed material on the grain pan or the like is swung and conveyed, and the wind from the Kara 9 is applied to perform the specific gravity difference sorting. Is configured.

  Below the sorting processing unit A, the following configuration is further provided. As shown in FIG. 1 and FIG. 2, there is provided a first-piece cross-feed conveying device 16 that conveys the first item (grain) sorted by the Glen-sheave 8 to one side of the machine body below the Glen-sheave 8, Below the stroller 12 is provided a second article lateral feed conveying device 18 that receives a second article such as a branch hook and conveys it to one side of the machine body.

As shown in FIG. 1 and FIG. 2, the first object lifting device 17 as a lifting device is connected to the upper side from the conveying end reaching the lateral side of the machine body of the first object laterally conveying and conveying device 16, The first item that is lifted and conveyed by the first item lifting device 17 is fed into the grain storage tank 19.
A second object reducing device 20 as a lifting device is connected upward from the conveying end of the second object laterally conveying and conveying device 18 that extends to the side of the machine body, and the second object that is conveyed by the second object reducing device 20. An object is sent to the sorting processing unit A.

  Next, the configuration of the cleaning port 21 in the first object transport system will be described. As shown in FIG. 2, the first item lateral feed conveying device 16 includes a first item conveying screw 16A disposed at the bottom of the sorting processing unit A and a threshing feed chain from the threshing side plate 22 of the first item conveying screw 16A. 1 and an input pulley 16B attached to the protruding end.

  As shown in FIGS. 1 and 2, a relay transfer case 23 is provided at the lower end position of the first object lifting device 17. A single support frame 24 that supports the lower end of the object lifting screw 17A with a bearing 23b and supports the conveying end of the first object conveying screw 16A with a bearing 23b is provided.

  As shown in FIGS. 2 and 3, a rotary blade 16 </ b> C having a diameter larger than the screw diameter is attached to a terminal portion located in the relay conveyance case 23 of the first object conveyance screw 16 </ b> A. The conveyed product conveyed by the screw 16 </ b> A is flipped up by the rotating blade 16 </ b> C and delivered to the lower end portion of the first object lifting device 17.

  The opening / closing lid 26 attached to the cleaning port 21 provided in the relay transfer case 23 will be described. As shown in FIGS. 3 and 4, the relay transfer case 23 as a transfer case of the transfer device is formed in a substantially L shape in a side view, and the substantially L shape case is formed on the left and right sides in the screw axial direction view. It is formed in the split case parts 23A and 23B. The left and right split case portions 23A and 23B are respectively provided with flange portions 23a along the dividing line. The left and right split case portions 23A and 23B can be integrated by attaching the flange portions 23a to each other with bolts. It is configured.

  As shown in FIG. 3 and FIG. 4, the left and right split case parts 23A and 23B have an arcuate surface in the lower half part in an assembled state, and one of the two parts exhibiting the arcuate surface is divided. A cleaning port 21 is formed in the case portion 23A with a length corresponding to approximately one-sixth arc.

  As shown in FIGS. 3 and 4, an L-shaped bracket 28 to which the opening / closing lid 26 is attached by a bolt 27 as an attachment tool is provided on the upper end side periphery of the cleaning port 21. The L-shaped bracket 28 has one surface 28A fixed to the peripheral surface, and the other surface orthogonal to the one surface 28A protrudes from the peripheral edge to form a mounting bracket portion 28B.

  A receiving member 29 as a locking portion for hooking and locking the lower end of the opening / closing lid 26 is attached and fixed to the lower end side periphery of the cleaning port 21. The receiving member 29 is attached to the lower end position of the other split case portion 23B disposed in a state of facing the one split case portion 23A.

The receiving member 29 extends a vertical plate-like portion 29A downward from the peripheral edge of the lower end of the cleaning port 21, and extends a refracting plate-like portion 29B that is refracted toward the one split case 23A from the middle. The refracting plate-like portion 29B is formed with a horizontally long locking hole 29b for hooking and locking the lower end of the opening / closing lid 26.
The refracting plate-like portion 29B is refracted parallel to the mounting bracket portion 28B of the L-shaped bracket 28.

  Next, the opening / closing lid 26 will be described. As shown in FIGS. 3 to 7, the open / close lid 26 includes an upper end flange portion 26 </ b> A and a lower end flange portion 26 </ b> B at both upper and lower ends. In other words, the open / close lid 26 has an upper end flange portion 26A provided in a state parallel to the mounting bracket portion 28B of the L-shaped bracket 28, and a lower end flange portion 26B formed in a state along the vertical plate-like portion 29A of the receiving member 29. A lid main body portion 26C formed by bending the upper and lower end flange portions 26A and 26B is formed in a semicircular arc shape along the edge of the cleaning port 21.

The open / close lid 26 is integrally formed with the upper end flange portion 26A, the lid main body portion 26C, and the lower end flange portion 26B. The lower end flange portion 26B has a tip portion protruding downward, and this downward protruding plate portion. 26c is comprised by the to-be-latched part.
A nut 26a is welded to the upper end flange portion 26A on the downward surface. When the opening / closing lid 26 is attached and fixed with a bolt, it is not necessary to hold the nut 26a and the operation can be easily performed.

  With the above configuration, as shown in FIG. 5A, the protruding plate portion 26c of the lower end flange portion 26B is inserted into and engaged with the locking hole 29b formed in the refracting plate-like portion 29B of the receiving member 29. At the same time, as shown in FIG. 5 (B), the upper end flange portion 26A is brought into contact with the mounting bracket portion 28B of the L-shaped bracket 28 from below and fixed with bolts. As a result, the cleaning port 21 is closed by the opening / closing lid 26.

  A mechanism for preventing an assembly error of the opening / closing lid 26 will be described. As shown in FIGS. 6 and 7, the protruding plate portion 26c of the lower end flange portion 26B of the opening / closing lid 26 is not inserted into and engaged with the locking hole 29b formed in the refracting plate-like portion 29B of the receiving member 29. It is necessary to prevent the upper flange portion 26A and the mounting bracket portion 28B of the L-shaped bracket 28 from being attached and fixed.

  As a mode in which the above-described phenomenon occurs, with the protruding plate portion 26c of the lower end flange portion 26B of the opening / closing lid 26 being in contact with the distal end surface of the refracting plate-like portion 29B of the receiving member 29, the upper end flange portions 26A and L It is conceivable that the mounting bracket portion 28B of the shape bracket 28 is fixedly mounted.

  Therefore, in the above-described configuration, the length of the refracting plate portion 29B of the receiving member 29 is set as follows. As shown by the solid lines in FIGS. 6 and 7, when the protruding plate portion 26 c of the lower end flange portion 26 B of the opening / closing lid 26 comes into contact with the tip end “a” of the refracting plate-like portion 29 B of the receiving member 29, the upper end flange of the opening / closing lid 26. Since the portion 26A is not located at a predetermined position with respect to the mounting bracket portion 28B of the L-shaped bracket 28, it cannot be attached with the bolt 27 as a fixture. As a result, the assembly is not mistakenly attached.

Even if the opening / closing lid 26 is rotated so that the upper end flange portion 26A of the opening / closing lid 26 is forced along the mounting bracket portion 28B of the L-shaped bracket 28 from the state shown by the solid line in FIGS. 6 and the state shown by the two-dot chain line in FIG.
If it does so, it will be in the state which the attitude | position with respect to the attachment bracket part 28B of the L-shaped bracket 28 of 26 A of upper end flange parts of the opening-and-closing lid 26 will incline, and cannot assemble | attach.

In the case shown in FIG. 6, the circumferential angle between the bracket 28 and the locking portion 29 is set to be smaller than 90 °. On the other hand, in the case shown in FIG. 7, the separation angle in the circumferential direction between the bracket 28 and the locking portion 29 is set to be smaller than 90 °.
In this case, the inclination angles formed by the upper end flange portion 26A of the opening / closing lid 26 and the mounting bracket portion 28B of the L-shaped bracket 28 are θ1 and θ2, and θ2 is smaller. Explained in the section.

The configuration described in the above first object transport system is also applied to the second object transport system. In other words, the second product lateral feed transport device 18 and the second product return device 20 are configured in a screw type, and the relay transport case 23 is located at the relay position between the second product lateral feed transport device 18 and the second product return device 20. The ones with the same function and form are placed.
A thing equivalent to the cleaning port 21 is also provided in the same thing as the relay transport case 23, and an opening / closing lid corresponding to the opening / closing lid 26 is provided in the thing corresponding to the cleaning port 21.
The mechanism corresponding to the opening / closing lid 21 is provided with a mechanism for preventing assembly errors.

[Other Examples]
(1) As a post-processing process, the conveyance destination of the first thing lifting apparatus 17 is a grain storage tank. The transport destination of the second product reducing apparatus 20 is the handling chamber 2 or the sorting processing chamber.
(2) The fixture for attaching the opening / closing lid 26 may be a clamp fitting or the like in addition to the bolt 27.
(3) The locking part 29 and the locked part 26c do not necessarily have to have the engaging hole 29b that penetrates, and may have an engaging hole that does not penetrate.

Longitudinal side view of threshing equipment Longitudinal front view of threshing treatment equipment Side view showing the state where the relay transport case is separated and showing the state before the opening / closing lid is attached (B) Front view showing a state before the opening / closing lid is attached to the relay conveyance case, (b) Front view showing a state where the opening / closing lid is attached to the relay conveyance case (A) Vertical side view showing the state before attaching the opening / closing lid to the relay conveyance case, (B) Side view showing the state where the opening / closing lid is attached to the relay conveyance case The state in which the circumferential angle between the bracket and the locking part is set to an angle smaller than 90 °, and the locked part of the opening / closing lid is in contact with the tip of the locking part and the contact point Vertical side view showing the state rotated around the center The state in which the circumferential angle between the bracket and the locking part is set to 90 ° is shown, with the locked part of the opening / closing lid in contact with the locking part tip and the contact point Vertical side view showing the rotated state

Explanation of symbols

16 No. 1 lateral feed transport device (transverse feed transport device)
17 Most thing lifting device (lifting device)
18 Second product transverse feed conveyor (transverse feed conveyor)
20 Second product reduction device (lifting device)
21 Cleaning Port 26 Opening / Closing Lid 26A Upper End Flange (Flange)
26c Projection plate part (locked part)
27 bolts (mounting fixtures)
28 Bracket 29B Refraction plate-like portion (locking portion) of receiving member
A Threshing processing department

Claims (3)

A lateral feed transport device that receives a sorting processed product from the sorting processing unit and transports it to the post-processing step, and a lifting device that receives the transport processed product from the lateral feed transport device and lifts it to the post-processing step is provided. , A threshing treatment apparatus in which a cleaning port is formed at a delivery site between the laterally feeding and conveying device and the lifting device, and an open / close lid is provided to close the cleaning port,
A bracket that attaches the opening / closing lid with a fixture and an engaging portion that hooks and engages one end of the opening / closing lid are formed on the periphery of the cleaning port, and a flange portion that is attached and fixed to the bracket on the opening / closing lid, and A locked portion that is locked and held by the locking portion is provided, and the extended length of the locking portion from the peripheral edge is in contact with the extended end of the locking portion. The threshing processing device is set so that the flange portion is positioned away from the predetermined position.   The threshing processing apparatus according to claim 1, wherein the bracket and the locking portion are provided in a parallel state.   The bracket and the locking portion are mounted on an arc surface of a transfer case at a transfer portion between the transfer device and the lifting device, and a circumferential separation angle between the bracket and the locking portion The threshing processing apparatus according to claim 2, wherein is set to be smaller than 90 °.

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