JP3394668B2 - Vertical feed screw conveyor in the second reduction device of threshing equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a screw shaft on a screw shaft in a vertical position, and a delivery blade on the upper end of the screw shaft to rotate the screw shaft.
It will be sent from the side-feed screw conveyor as it rotates.
Lifting and transporting the second item with the screw blade
The second blade from this screw blade is used as the delivery blade.
The present invention relates to a vertical feed screw conveyor in a No. 2 reduction device of a threshing device, which is configured to be returned to the inside of the threshing device.

[0002]

2. Description of the Related Art Conventionally, in the vertical feeding screw conveyor in the second reducing device of the above threshing device, the terminal edge of the screw blade and the lower edge of the delivery blade in the longitudinal direction of the screw shaft are butted and fixed to each other. there were.

[0003]

SUMMARY OF THE INVENTION In the above conventional configuration,
The direct lifting and conveying of the second product by the screw blades in the state where the second product is in contact ends before the lower edge of the delivery blade in the longitudinal direction of the screw shaft, and then the second product to the delivery blade is completed. Items were sent by pushing up with the second item.

[0004] Such a second product can be conveyed to some extent smoothly if the second product is light and difficult to adhere to other products, but if the second product is wet and heavy, for example,
It is easy for the dust and the like contained therein to adhere to the inner wall and the like of the lifting cylinder, and the above-mentioned straw dust is another straw dust or another 2
Since it easily adheres to the bait, it is difficult to sufficiently feed the leading 2nd to the delivery vane side only by the pushing-up force by the subsequent 2nd batten, and the upper end side of the screw vane There was a case where the second one got stuck.

An object of the present invention is to enable the second product to be reliably sent to the delivery blade even if the second product is wet so that the second product can be smoothly returned to the inside of the threshing device.

[0006]

[Means for Solving the Problems]

[Structure] A characteristic structure of the invention according to claim 1 is that a screw blade is provided on a screw shaft in a vertical posture, and a delivery blade is provided on an upper end of the screw shaft to rotate the screw shaft.
It will be sent from the side-feed screw conveyor as it rotates.
Lifting and transporting the second item with the screw blade
The second blade from this screw blade is used as the delivery blade.
In the longitudinal feed screw conveyor in 2nd reduction apparatus constructed to Aru threshing device to reduction in the interior of the threshing apparatus, the delivery blade, said screw blade and its lower side
The end portion of the root overlaps in the longitudinal direction of the screw shaft,
And, from the end of the screw blade to the screw shaft
It is provided in a state that a space is provided on the lower side in the rotation direction of .

According to a second aspect of the present invention, in the invention according to the first aspect, the length of the overlapping portion between the terminal end portion of the screw blade and the delivery blade is set to the delivery blade in the longitudinal direction of the screw shaft. Is set to one-third or one-half of the length.

[Operation] According to the structure of claim 1, the terminal end portion of the screw blade is overlapped with the lower end side of the delivery blade in the longitudinal direction of the screw shaft at intervals in the rotational direction thereof. Direct lifting and conveying of the second product by the screw blades while the second product is in contact with
This is performed up to the upper side of the lower end side of the delivery blade in the longitudinal direction of the screw shaft.

As a result, for example, in addition to the second object being wet and heavy, the scraps and the like in it tend to adhere to the inner wall of the lifting cylinder, and the scraps are Even if it easily adheres to straw scraps or other second objects, it is possible to send the second objects beyond the end of the screw blade to the delivery blade side securely, and the delivery blade puts them inside the threshing device. It can be returned smoothly.

Since the terminal end portion of the screw blade is overlapped with the lower end side of the delivery blade in the longitudinal direction of the screw shaft, the screw blade is attached to the screw shaft as in the case of overlapping the entire length of the delivery blade. Occasionally, the delivery vanes will not get in the way and will be difficult to install.

According to the structure of claim 2, the following effects can be achieved. If the length of the overlapping portion of the terminal end of the screw blade and the delivery blade is too short, the second product may be slightly beyond the end of the screw blade and the second product may not be sufficiently fed to the delivery blade side. On the other hand, if the length of the overlapping portion is too long, there is a disadvantage that a second object that tries to pass through the delivery blade also appears, but in the configuration of claim 2, the overlapping portion is formed in the longitudinal direction of the screw shaft. Since it is set to one-third or one-half of the length of the delivery blade in the direction, there is no such inconvenience as described above, and it is possible to make the No. 2 object beyond the end of the screw blade and to the delivery blade side more reliably. Can be sent to.

[Effect] Therefore, according to the structure of claim 1, even if the second object is wet, the second object is passed over the end of the screw blade by the simple modification of the screw blade, and the delivery blade side is provided. It was possible to reliably send the second product to the inside of the threshing device with the sending blade, and it was possible to improve the reducing performance of the second product.

According to the second aspect of the invention, even if the second object is wet, the screw blade can be easily modified by a simple modification of the screw blade.
It is possible to more reliably send the bait over the end of the screw blade to the delivery vane side, and the delivery vane can smoothly deliver it to the inside of the threshing device, further improving the reducing performance of the second bait. I was able to improve.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show a threshing device mounted on a combine. This threshing device 1 threshes the grain culm conveyed by the feed chain 4 in the handling room B by the handling barrel 2 and the receiving net 3, and at the same time, treats the product leaked from the receiving net 3 with the grain and straw. In the rocking sorting case 5 for specific gravity sorting with waste, the upper grain pan 6 and chaff sheave 7 perform rough sorting into grain and straw waste, and the lower grain pan 8 and grain sieve 9 perform fine sorting and leak from the grain sieve 9. The first grain of the dropped grain is collected in the first grain collecting unit 12, supplied to the grain tank 39 by the grain conveying device 38, and provided with straw scraps, shavings, and branches discharged from the end of the grain sieve 9. The second product such as paddy is collected in the second product recovery unit 13 and returned to the starting end of the swing selection case 5 via the second product returning device A. Then, among the processed products discharged from the dust-sending port 3a at the rear end of the receiving net 3, straw dust is the first straw rack 10 and the second stroll rack 11
The dust such as rice husks and small straw scraps that are discharged to the outside of the swing sorting case 5 via the sewage sorting case 5 is discharged to the outside of the machine by the sorting wind by the Kara 15 and the suction wind by the dust blower 16. There is. The threshing case 41 forming the handling chamber B and the sorting chamber includes an upper case 41A for supporting the handling barrel 2 and a lower portion for supporting the upper case 41A so as to be openable / closable about an axis X parallel to the handling body axis. And a case 41B.

As shown in FIGS. 3 and 9, the second product reducing device A is provided at the end of the horizontal feed screw conveyor 17 disposed in the second product recovery section 13. The installed vertical feed screw conveyor 18 is connected and communicated via a corner case 19 attached to the threshing device side plate 14, and both screw conveyors 17, 1 are connected.
8 screw shafts 20 and 21 are interlockingly connected via a bevel gear mechanism 22, and a grain sweeping blade 25 having a diameter larger than that of the screw blade 23 is provided at the terminal end portion of the screw shaft 20 of the transverse feed screw conveyor 17. A receiving screw blade 35 having a diameter larger than the outer diameter of the screw blade 24 is provided at the lower end of the screw shaft 21 of the vertical feed screw conveyor 18 covered with the lifting tube 34, and a grain feeding blade is provided at the upper end of the screw shaft 21. 36 is provided and configured.

As described above, since the grain sweeping blade 25 is provided, the grains reaching the end of the horizontal feeding path are fried and discharged, and are forcibly fed to the lower end of the vertical feeding path, It is possible to improve the grain transfer performance from the horizontal feed route to the vertical feed route, and since the receiving screw blades 35 are provided, it is possible to improve the performance of receiving the grains fed to the lower end of the vertical feed route. it can.

As shown in FIGS. 5 and 6, the terminal end portion of the screw blade 24 of the vertical feed screw conveyor 18 is arranged at the lower end side of the delivery blade 36 in the longitudinal direction of the screw shaft 21 in the rotational direction thereof. It is opened and duplicated. The length of the overlapping portion is ½ of the length of the delivery vane 36 in the longitudinal direction of the screw shaft 21 (the preferable length of the overlapping portion is ⅓ to ½).
With this configuration, direct lifting and carrying of the second object by the screw blade 24 with the second object in contact is carried out by entering the upper side of the lower end side of the delivery blade 36 in the longitudinal direction of the screw shaft 21, The second product is surely sent to the sending blade 36.

As shown in FIG. 8, the direction of rotation of the screw shaft 20 of the transverse feed screw conveyor 17 is counterclockwise when viewed from the right side plate 14 of the threshing device, and the right side plate 1 of the threshing device 1
Insertion port 40 for the horizontal feed screw conveyor 17 of No. 4
(In other words, the outlet from the right side plate 14 of the second product) is formed such that the upper part of the transverse feed screw conveyor 17 is larger in diameter than the lower part and the upper part is projected rearward. The second object is prevented from wrapping around, and the second object is smoothly discharged to the outside of the right side plate 14.

As shown in FIGS. 2 and 4, the grain transfer device 38 has a transverse feed screw conveyor 26 located at the lower part of the first product recovery section 12 and extends upward from the end thereof. The vertical feed screw conveyor 27 is connected to the vertical feed screw conveyor 27 via a corner case 28. The vertical feed screw conveyor 27 inserts a screw shaft 30 provided with screw blades 29 into a lifting cylinder 31 and also rotates the screw shaft 30. The feed blade 32 is provided at the upper end of the screw feed mechanism, and the first blade fed from the horizontal feed screw conveyor 26 is lifted and conveyed by the screw blade 29, and the first blade from the screw blade 29 is fed to the grain tank 39 by the feed blade 32. It is configured to supply.

As shown in FIG. 7, the screw blade 2
The terminal edge of 9 and the lower edge of the delivery blade 32 in the longitudinal direction of the screw shaft 30 are butted and fixed to each other so that the screw blade 29 directly lifts and conveys the first item while the first item is in contact. It is configured such that it is finished before the lower end edge of the delivery blade 32 in the longitudinal direction of the screw shaft 30 and the subsequent feeding of the first product into the delivery blade 32 is performed by pushing up by the subsequent first product. This is different from the structure of the No. 2 reduction device A on the transport end side. This means that even if No. 1 is wet and heavy, 2
Like a bait, it is less likely that it will adhere to the inner wall of the lifting tube 31 or the like, and that the 1st products will not easily adhere to each other. This is because it can be sufficiently fed to the delivery blade 32 side.

[Another Embodiment] The second object may be returned to the front part of the handling room B by the second object returning device A.

[Brief description of drawings]

1 is a vertical side view of the threshing device.

FIG. 2 is a partially cutaway front view of the threshing device.

FIG. 3 is a vertical sectional front view of the threshing device.

FIG. 4 is a right side view of the threshing device with a part thereof cut away.

FIG. 5 is a vertical cross-sectional front view of the main part of the No. 2 reduction device.

FIG. 6 is a cross-sectional plan view around the reduction port of the No. 2 reduction device.

FIG. 7 is a vertical cross-sectional front view around the delivery port of the grain conveying device.

FIG. 8 is a side view showing the terminal side and the right side plate of the transverse feed screw of the No. 2 reduction device.

FIG. 9 is a vertical sectional front view of a main part of the No. 2 reduction device.

[Explanation of symbols]

17 Horizontal feed screw conveyor 21 Vertical feed screw conveyor screw shaft 24 Vertical feed screw conveyor screw blades 36 Delivery blade

Continuation of the front page (56) Bibliographic references 4-41231 (JP, U) Fudo 57-122244 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A01F 12 / 52

Claims (2)

(57) [Claims] 1. A screw blade is provided on a screw shaft in a vertical posture, and a delivery blade is provided on an upper end of the screw shaft, so that a horizontal feed screw is provided as the screw shaft rotates.
The second item sent from the crow conveyor is the screen
Use the screw to lift and transport the screw
Return the second blade from the blade to the inside of the threshing device with the delivery blade.
A vertical feed screw conveyor in 2nd reduction device threshing apparatus are configured to source, the delivery blades, end of the screw blade and its lower side
The end portion and the screw shaft overlap in the longitudinal direction of the screw shaft, and
Rotation of the screw shaft from the end of the screw blade
The vertical feed screw conveyor in the No. 2 reduction device of the threshing device, which is provided on the lower side in the direction with an interval . 2. The length of the overlapping portion between the terminal end of the screw blade and the delivery blade is set to one third or one half of the length of the delivery blade in the longitudinal direction of the screw shaft. A longitudinal feed screw conveyor in the No. 2 reduction device of the threshing device according to claim 1.