JP2589962B2 - Threshing equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing apparatus provided with a blade for ejecting a second product in a path for returning a collected second product to a sorting section. Things. 2. Description of the Related Art Such a threshing apparatus is disclosed in Japanese Utility Model Application
As disclosed in JP-A-9-136931, a thrower blade is provided for punching at the end of a second screw provided in a second product recovery unit, and the upper end of a thrower case containing the lower blade is placed above the sorting unit. There is one that communicates with the formed second reduction port. In this threshing device, the second product conveyed into the slower case by the second screw is hit by the slower blade to be singulated and ejected upward, and is returned to the sorting unit from the second return port at the upper end. Was [0003] However, if the amount of the thresh-treated product is large, wet, or a hard-to-threate variety, it is possible to reduce the size of the single grain more effectively only by hitting with the thrower blade. I couldn't do that. The present invention, in view of such circumstances, according to threshing work conditions and varieties, etc.
It is an object of the present invention to satisfactorily and sufficiently singulate the second product and reduce it to the sorting section. SUMMARY OF THE INVENTION The present invention relates to a threshing apparatus in which a blade for ejecting a second product is provided in a path for returning a collected second product to a sorting section, wherein the blade is provided with an interior. In the peripheral wall of the case to be formed, a slit is formed in a state penetrating inside and outside, and a support portion for fixing and supporting the receiving blade at a position distant to the outside of the peripheral wall of the case where the slit is formed is provided in the case, and the support portion is provided outside the case. From the outside of the case, a mounting state where the front end side is inserted into the slit to support the rear end side of the receiving blade, and a detached state where the support of the rear end side is released and the front end side of the receiving blade is extracted from the slit. The receiving blade is configured to be detachable by the above operation. The operation and effect of this characteristic configuration are as follows. [0005] In other words, when the amount of the thresh-processed product is large or wet, or when conditions are poor such as hard-threatening varieties, a receiving blade is inserted into a slit formed in the peripheral wall of the case to receive the threshing. The blade is fixed to the support to give the second part a sufficient leaching action and a single graining action. In addition, in the case where the thresh-processed product is one that is easily threshed and damaged like soybeans and cuts off the roots with soil attached, the receiving blade is pulled out of the slit, as in the conventional case. A single grain is formed only by the blades for punching, and the slit with the receiving blade removed is used as a hole for discharging dust and soil. Furthermore, since the supporting portion is provided in the case in a state where the receiving blade is fixedly supported at a position away from the outside of the slit,
This supporting portion also serves as a reinforcing member around the slit of the case, and the receiving blade is held through the slit as compared with the case where the receiving blade is directly connected and fixed to the case, so that the supporting strength is high. [0006] As a result, the amount of the threshing product, the wet / dry condition, or the varieties of the threshing product can be easily changed by simply moving the receiving blade through the slit into the case or pulling out the slit. Accordingly, the action of the receiving blade is appropriately given, so that the grain can be satisfactorily and sufficiently singulated with little risk of damage to the secondary material, and the re-threshing ability is high. In addition, while forming a slit that may impair the case strength to some extent, the case strength is enhanced by the reinforcing effect of the support portion around the slit, and the supporting strength of the receiving blade can be increased, and the durability is improved. And a processing structure with a high level can be obtained. An embodiment of the present invention will be described below with reference to the drawings. FIG. 4 shows an all-culm-input combine having a pre-cutting section A, a threshing section B, a sorting section C, and a collecting section D. The pre-cutting processing section A includes a reel 1 which rakes the rearward of the machine while raising the planted grain culm, a cutting device 2 which cuts the crushed grain culm, and transports the harvested grain culm in the middle of the cutting width and moves it. The auger 3 to be collected and the two rotating drums 4A and 4 for transporting the harvesting nation upward and backward through the transport path R.
B. The rotary drums 4A and 4B are drum-shaped having projections on the outer cylinder and rotate counterclockwise around the left and right horizontal axes. Therefore, the harvested grain culms gathered by the auger 3 are lifted up on the lifting transport path R by the projections of the front rotating drum 4A, and pass through the lower side of the rotating drum 4A to the rear rotating drum 4B. Sent. Rear rotating drum 4
In the lower part of B, a front receiving net 7 having a receiving tooth 7a is arranged, and the cutting grain culm sent from the rotary body 4A at the front is provided with a projection and the receiving tooth 7a in cooperation. After performing a typical handling process, it is put into the handling room 5. The threshing unit B has a handlebar 6 extending around a handlebar 5 formed in the upper part of the fuselage, and a receiving net 9 provided below the handlebar 6. The handling cylinder 6 is of an axial flow type having a spiral handling tooth 8 in an outer cylindrical portion and rotating around a longitudinal axis P inclined forward and downward. The processed material handled by the handling cylinder 6 leaks down the receiving net 9 and falls to the sorting unit B. On the other hand, the non-leakage material remaining on the receiving net 9 is sent backward while undergoing continuous handling processing by the tooth handling 8 and the receiving tooth 9a. The driver's seat 10 is provided by utilizing the space above the front part of the handling room 5, so that the operator can operate while looking down at the reaping work in close proximity. [0010] The sorting section C sorts the leaked material leaking from the receiving net 9 into a first grain, which is a single-grained paddy, a second grain containing a large amount of branching paddy, and straw chips. And two upper and lower chaff sheaves 12, 1 extending between a pair of swinging sorting plates.
3, and a grain sheave 14 are provided so as to be able to swing together, and a Karamin 15 for sending a sorting wind is provided below and in front of them. A Glen pan 16 is provided in front of the upper end chaff sheave 12, and a lower chaff sheave 13 is provided.
A straw walker 17 is continuously provided at the rear part. The collecting section D is disposed below the sorting section C. The collecting section D collects the first thing dropped from the sorting section C, and conveys it to one side by the first screw 18a. And a second product recovery unit 19 that collects the second product and conveys the second product to one side by a second screw 19.
A grain lifting device 20 is connected to the transport end of the first product recovery unit 18 so that the transported first product is sent to the grain tank T. Further, at the end of the second screw 19a, a lower blade 21 is connected as a blade for punching out, and the transported second product is returned to the sorting section C. More specifically, as shown in FIG. 1, a reduction screw conveyor 23 is connected to a lower case 22 in which the lower blade 21 is provided, and a discharge blade 24 is provided at an upper end of a reduction screw 23 a provided in the reduction screw conveyor 23. After the second product ejected from the lower case 22 by the lower blade 21 is pumped up by the reduction screw 23a, the second blade 25 discharges the second product from the second reduction port 25 onto the sorting unit C. On the peripheral wall of the lower case 22, four slits 22a are formed at two locations, a lower portion and a rear portion, in parallel with each other in a circumferential direction. Further, on the outer surface of the peripheral wall on which the slit 22a is formed, a mounting base 26 having a slit 26a of the same shape is fixed as a supporting portion of the receiving blade 27. The mounting base 26 has four triangles. The base plate 28 on which the receiving blades 27 are arranged side by side is bolted so that the receiving blades 27 can be inserted into the mounting base 26 and the slits 26a, 22a of the lower case 22, as shown in FIG. The receiving blade 27 breaks the second product conveyed into the lower case 22 to make the blower 21 more effectively hit the second product. Used in some cases. In the case where the thresh-processed product is easy to thresh, such as soybean, as shown in FIG. As the outlet for dust and dirt. A case 29 surrounding the discharge blade 24
Four slits 29a are also formed in the peripheral wall of the bracket, and the receiving blade 30 is inserted and bolted and fixed similarly to the lower case 22. Then, the discharged second product is further released, and the impact of the discharge blade 24 on the second product is made more effective. These receiving blades 30 are fixed outwardly in the same manner as the receiving blades 27 of the lower case 22 in the case where the threshing process is easy for threshing. By the way, this case 2
9 of the slit 29a and the slit 2 of the lower case 22
2a can be closed with a lid. 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 longitudinal side view of a reduction route. FIG. 2 is a longitudinal side view of a case. FIG. 3 is a longitudinal perspective view of a case. FIG. 4 is an overall longitudinal side view of an all-culm-in combine. [Explanation of symbols] 21 feathers 22 cases 22a slit 26 Support 27 Receiving blade C sorting section

Claims (1)

(57) Claims: A threshing device provided with a blade (21) for discharging a second product in a path for reducing the collected second product to a sorting unit (C), wherein the blade ( 21) On the peripheral wall of the case (22) that houses the interior,
The slit (22a) is formed so as to penetrate inside and outside.
The case (22) in which the slit (22a) is formed
The receiving blade (27) is fixedly supported at a position away from the outer peripheral wall.
A supporting portion (26) is provided on the case (22), and the supporting portion (26) is configured such that a tip end side thereof is formed from the outside by the slit.
Support the rear end side of the receiving blade (27) inserted in (22a)
And the receiving blade (2
7) Extract the tip side from the slit (22a).
In the detached state, the receiving blade is operated by operation from the outside of the case (22).
A threshing device in which (27) is detachably configured .