JPH0313152Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a threshing device having spiral handling teeth and radial handling teeth on the handling barrel, and is particularly designed to supply the entire amount of crops for threshing and sorting. This relates to threshing equipment.

(Prior art) In a conventionally well-known threshing device, a large number of linear handling teeth are installed on the circumferential surface of the handling drum, and a dust removal plate is installed on the upper cover of the handling chamber in the circumferential direction of the grain to be threshed (crop). is installed so that the feed angle of the grain can be adjusted, and the grain to be threshed is moved in the circumferential direction while being threshed by the friction between the handling teeth, the inner peripheral surface of the handling chamber, and the dust removal plate.

The residence time of the grain to be threshed in the handling chamber is adjusted by changing the feeding angle of the dust removal plate depending on the conditions of the grain to be threshed (crop).

(Problem to be solved by the invention) In this case, the feeding action of the threshed grains by the linear handling teeth is almost constant, so when changing the feeding angle of the dust removal plate, it is not an angle adjustment to the arrangement angle of the handling teeth. The idea was to simply change the angle of the dust exhaust plate with respect to the circumferential direction.

On the other hand, the present applicant has proposed a so-called screw threshing type threshing device having spiral handling teeth around the handling barrel, for example, in Japanese Patent Laid-Open No. 198022/1983. In this threshing device, in a handling chamber having a receiving net at the lower part, a handling barrel configured by winding spiral handling teeth continuously from one side to the other side is mounted around the outer periphery, and the handling teeth are The radial handling teeth are provided so as to protrude outward from the outer periphery of the spiral handling teeth, and as the handling barrel rotates, the spiral handling teeth and the radial handling teeth move the grain to be threshed in the axial direction of the handling chamber and thresh it. In this way, the entire amount of crops to be threshed was supplied to the handling room. In this device, the spiral handling teeth and radial handling teeth provide a strong feeding action in the axial direction of the handling barrel, making it possible to smoothly thresh and move even wet or long culms. Confirmed. However, even in this case, although it is necessary to adjust the residence time in the handling chamber by adjusting the moving speed of particles that are easy to remove and particles that are difficult to remove, it has not been possible to do so.

Therefore, even if an attempt is made to adopt the above-mentioned conventionally known dust exhaust plate in order to adjust the moving speed of the grain to be threshed, the screw threshing type threshing device will not work properly.
Since the spiral handling teeth and radial handling teeth have a strong feeding action in the axial direction of the handling cylinder, it is recommended to use a structure that adjusts the feeding angle in the circumferential direction of the handling cylinder, such as the dust removal plate mentioned above, as is. I couldn't.

The present invention has been made to solve the above problems.

(Means for solving the problem) In order to achieve this object, the present invention has a spiral handling tooth wound continuously from one side to the other around the outer periphery in a handling chamber having a receiving net at the bottom. The handling cylinder configured with the above-mentioned handling cylinder is mounted on a shaft, and the handling teeth are provided with radial handling teeth so as to protrude outward from the outer periphery of the spiral handling teeth, and the rotation of the handling cylinder causes the spiral handling teeth and the radial handling teeth to cover each other. In a threshing device that threshes grain while moving in the axial direction of a handling chamber, and supplies the entire amount of crops to be threshed to the handling chamber, approximately inside the upper cover of the handling chamber that covers the handling drum. Over the entire length, the speed of movement of the threshed grain that is sent along the lead angle by the spiral handling teeth is increased,
Alternatively, a plurality of adjustment plates are provided to slow down the speed, and the adjustment plates are supported by two fulcrums, one of which is a fixed pivot point, and the other is a movable point that can move in the radial direction around the fixed pivot point. In addition, the angle of the spiral handling teeth of the adjustment plate with respect to the lead angle can be adjusted, and a sorting mechanism is provided below the handling chamber to sort out leakage from the handling chamber receiving screen. It is.

(Function) With the above configuration, the moving speed of the threshed grain in the handling chamber of the screw-thresher type threshing device can be arbitrarily adjusted, and the most suitable threshing and sorting can be achieved according to the condition of the threshed grain. processing becomes possible.

(Embodiments) The present invention will be described below with reference to illustrated embodiments.

In FIG. 1, reference numeral 1 denotes a handling chamber provided in the horizontal direction, and a handling body is constructed by winding spiral handling teeth 3 continuously around the outer peripheral surface of the handling chamber 1 from one end to the other end. 2 is mounted on a shaft. Furthermore, the above-mentioned handling cylinder 2
radially and spirally handling teeth 3 in a predetermined arrangement.
Rod-shaped radial treatment teeth 4 are provided that protrude outward from the outer circumferential edge of the rod. At the bottom of the handling room 1, a receiving net 5 is installed in a semicircular shape as shown in FIG.
Adjustment plates 6 are provided inside the upper cover 1a at predetermined intervals in the longitudinal direction of the upper cover 1a.

As shown in FIGS. 2 and 3, this adjustment plate 6 has one end thereof connected to a pivot (fixed point) 7 so that the angle relative to the lead angle of the helical handling teeth 3 of the handling barrel 2 can be changed. An adjustment bolt (movable point) 8 and a wing nut 9 are attached to the other end which is pivotably supported and movable in the radial direction around the pivot shaft 7.
A slit 1 formed in an arc shape in the upper cover 1a.
0, moves within the range of this slit 10, and is fixed with a wing nut 9. A supply port 11 is provided on one side of the handling chamber 1 to supply the entire crop, and a culm discharge port 12 is opened on the other side of the handling chamber 1 opposite to the supply port 11.

A sorting room 13 is provided below the receiving net 5 in the handling room 1. Inside this sorting chamber 13, there is a screw auger 1 driven by a shaft parallel to the axis of the handling cylinder 2.
4, a sorting catch net 15 is disposed in the catch gutter portion of the screw auger 14, and a belt conveyor 16 is provided below the sorting catch net 15 for conveying from right to left in FIG. There is. Belt conveyor 1
A grain collecting auger 17 is provided below the conveying end of the grain collecting net 6 and the rear end of the sorting receiving net 15. Above the grain collecting auger 17, a belt conveyor is 16 and a wind selection path 19 for wind-selecting grains and the like falling from the sorting net 15 toward the grain collection auger 17.

A diffusion rod 20 is erected in the radial direction between the pitches of the screws of the screw auger 14, and a diffusion body 21 is installed to connect the screws in the axial direction.
is provided. Further, the terminal end of the sorting net 15 is opened to form a discharge culm opening 22, and further,
The rear part of the wind selection path 19 is open and forms a dust exhaust port 23.

In the threshing device configured in this way, the grain to be threshed, which is supplied together with the grain culm from the supply port 11 into the handling chamber 1, is threshed by the spiral handling teeth 3 and the radial handling teeth 4 by the rotation of the handling cylinder 2. It moves in the axial direction of the handling cylinder 2 along the lead angle of the spiral handling teeth 3 while receiving the action.
During this movement, the threshed grains leak through the receiving net 5 and fall into the sorting room 13, and the remaining culms and the like are discharged out of the machine from the culm opening 12. In this way, the grain to be threshed is subjected to the threshing action during the movement process of the handling cylinder 2 in the axial direction, so sufficient threshing time is given, and the spiral handling teeth 3, the radial handling teeth 4, the receiving net 5, and the upper part of the handling chamber Threshing is facilitated by the friction between the cover 1a and the movement speed of the grain to be threshed by the adjustment plate 6.

For crops with high moisture content in the grain to be shed or crops that are difficult to shed like rice, the angle of the adjustment plate 6 with respect to the lead angle of the spiral teeth 3 can be adjusted by rotating the adjustment bolt 8 and butterfly around the axis 7. Fixed and adjusted with nut 9,
By adjusting the lead angle of the spiral handling teeth 3 so as to provide resistance to the movement of the grain to be threshed, the movement speed can be slowed down, the residence time in the handling chamber 1 can be lengthened, and a high threshing rate can be achieved. can get. On the other hand, for crops with low moisture content in the grains to be threshed, or crops that are easy to shed, such as soybeans, buckwheat, wheat, etc., the angle of the adjustment plate 6 is adjusted to increase the movement speed of the grains to be threshed. The threshing conditions are adjusted to provide the most suitable threshing conditions.

From the receiving net 5 to the screw auger 14 in the sorting room 13
The material to be sorted that has fallen onto the top is removed by the screw auger 14.
During the movement, the grains leak through the sorting net 15 and fall onto the belt conveyor 16 or the wind selection path 159, and
The unthreshed grains in the process of shedding are threshed and are also sent to the sorting receiving net 1.
The culm that fell from 5 and remained until the end is culm opening 22
ejected from the aircraft.

When the grains that have fallen onto the belt conveyor 16 are discharged from the end of the conveyance, they are sorted by the sorting wind from the grain fan 18 and fall onto the grain collecting auger 17, and then are passed through the wind sorting path 19. The fallen grains are similarly screened, fall onto the grain collection auger 17, and are collected. The short culms, dust, etc. that have been separated from grains by wind sorting are discharged from the dust outlet 23 to the outside of the machine.

The number of adjustment plates 6 may be increased or decreased, and the angle may be adjusted arbitrarily by using a plurality of adjustment plates.Furthermore, the number of adjustment plates 6 may be increased or decreased. It may be divided and attached to the upper cover. Further, the spiral handling teeth may be completely continuous from one end of the handling cylinder to the other end, or may have a break in the middle. Furthermore, the sorting mechanism below the handling chamber may be of a type other than that of the embodiment.

(Effect of the invention) As explained above, according to the threshing device of the present invention, the grain to be threshed is sent along the lead angle by the spiral handling teeth to the inside of the upper cover of the handling chamber that covers the handling barrel. A control plate is provided to accelerate or decelerate the moving speed, and the mounting angle of this control plate can be adjusted to the lead angle of the spiral handling teeth to screen leakage from the receiving net in the handling room. Therefore, the installation angle of the adjustment plate can be adjusted depending on the dryness/wetness of the entire amount of grain to be threshed, the difficulty of threshing, etc., and the threshing accuracy and work efficiency can be improved. In addition, the adjustment plate is supported at two points: a fixed pivot point and a movable point that is movable in the radial direction around the fixed pivot point, so that the grain to be threshed depends on the lead angle of the spiral handling teeth. Even when a large resistance is applied to the side surface of the adjustment plate due to the moving force of the adjustment plate, it does not rotate easily because it is supported at two points, a fixed pivot point and a movable point, and performs a stable action. Furthermore, the length of the handling barrel can be shortened, the size and weight can be reduced, the sorting accuracy of the sorting mechanism can be improved, and both threshing and sorting performance can be improved.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of the entire threshing device, FIG. 2 is a side sectional view of the main part, and FIG. 3 is a plan view of the main part. 1... handling chamber, 1a... upper cover, 2... handling barrel, 3... spiral handling teeth, 4... radial handling teeth, 5... receiving net, 6... adjustment plate, 7... pivot (fixed) points), 8...
... Adjustment bolt (movable point), 9 ... Wing nut, 10
... Slit, 11 ... Supply port, 12, 22 ... Culm opening, 13 ... Sorting room, 14 ... Screw auger, 15 ... Sorting receiving net, 16 ... Belt conveyor, 17 ... Grain collection Ogre, 18...Karami Juan, 19...Kazesenro, 20...Diffusion stick, 21...
Diffuser, 23...Dust exhaust port.

Claims (1)

[Scope of Claim for Utility Model Registration] In a handling chamber having a receiving net at the lower part, a handling cylinder configured by winding spiral handling teeth continuously from one side to the other on the outer periphery is mounted on a shaft, and the above-mentioned The treated teeth include
Radial handling teeth are provided so as to protrude outward from the outer periphery of the spiral handling teeth, and as the handling barrel rotates, the spiral handling teeth and the radial handling teeth move the grain to be threshed in the axial direction of the handling chamber while threshing. In a threshing device that supplies the entire amount of crops to be threshed to a handling chamber, the grain is fed along the lead angle by spiral handling teeth over almost the entire length inside the upper cover of the handling chamber that covers the handling barrel. To increase the movement speed of the threshed grain,
Alternatively, a plurality of adjustment plates are provided to slow down the speed, and the adjustment plates are supported by two fulcrums, one of which is a fixed pivot point, and the other is a movable point that can move in the radial direction around the fixed pivot point. In addition, the angle of the spiral handling teeth of the adjustment plate with respect to the lead angle can be adjusted, and a sorting mechanism is provided below the handling chamber to sort out leakage from the receiving net of the handling chamber. Device.