JPH11206232A - Swing sorting device in combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a swing sorting device in a combine harvester, having a controlling line for a potentiometer for detecting an aperture of a sheave at the time, efficiently wired so as not to be an obstacle against the swinging operation. SOLUTION: A potentiometer 23 for detecting an aperture of each sheave 6 at the time is attached to the inner surface of a swinging side plate 20a at one side, and the controlling line 26 is extended along the outer side surface of the swinging side plate 20a to the rear side of a machine body. The controlling line 26 is extended from the out side surface of the swinging side plate 20a at the one side along a back surface between both of the swinging plates 20a to the swinging plate at the other side, and a through hole is bored at the position on the extending line of the extended controlling line 26 at the side of a supporting frame 29 neighboring to the controlling line.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swing sorter constructed above a sorting wind path, in which a group of sheaves having variable openings is juxtaposed in the latter half of the swing sorter, and the opening of the sheaves is varied to change the leakage of paddy. The present invention relates to a swing sorter in a combine which adjusts a lower amount and keeps a layer thickness of paddy staying on a swing sorter at a constant level, and in particular, controls a potentiometer for detecting a current opening degree of the sheave. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swing sorting device in a combine which can efficiently wire wires without obstructing swing motion.

[0002]

2. Description of the Related Art Generally, a wind selection chamber is provided rearward in the axial center of a handling cylinder, and a swing sorting body is installed in a sorting air passage formed from a lower front portion of the handling cylinder toward the wind selection chamber. In the combine, the specific gravity of the rocking sorting body by the forward and backward rocking motion, and the wind sorting by the sorting wind that blows through the sorting wind path, the paddy is the first thing, the second thing, and foreign substances such as chaff After the first thing is dropped on the first gutter, it is collected in a paddy tank by a fryer, and the second thing is dropped on a second gutter and then rocked by a second reduction cylinder. To be re-elected,
The rice husks are sucked by a suction fan in a wind selection room and discharged to the outside of the machine from a dust outlet at the rear of the machine.

In the specific gravity sorting operation by the swing sorter as described above, in the transfer sorting route, the seeds are separated through sufficient swinging motion such that paddy is located in the lower layer and paddy is located in the upper layer. Is important, and it has been found that the effect of the sorting action is remarkably exhibited when the transported amount of the leaked paddy is relatively small and kept constant.

[0004] In recent years, a float sensor for detecting the thickness of the paddy layer on the rocking sorter has been added to a rocking sorter in which a group of sheaves whose opening degree is variable is juxtaposed on the latter half side. A combine configured to perform automatic sorting control for maintaining the thickness of the paddy layer on the swinging sorting body constant according to the magnitude of threshing amount by varying the sheave opening degree in the sheave has been proposed. Since the potentiometer used for detecting the current opening of the group must be attached to the swinging side plate forming the swinging sorter, the wiring of the control line connected to the potentiometer itself swings. At present, the best wiring configuration has not yet been reached due to the relationship with the moving sorter.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation and has been made to solve the conventional problems. While effectively utilizing the space, the wiring of the potentiometer control lines can be grouped in a convenient manner without hindering the swinging motion, and even when the swing sorting device is detached during inspection, maintenance work, etc. The work can proceed without inducing troubles such as forcibly pulling the control line of the potentiometer or hooking on other structural parts, and is connected to the rocking operation of the rocking sorter when the rocking operation is performed. An object of the present invention is to provide a swing sorter in a combine which can set an extra wiring length as short as possible in anticipation of swing of a control line and can maintain smooth swing movement.

[0006]

Means for Solving the Problems In order to solve the problems, a first technical means adopted by the present invention is to pivotally support a plurality of sheaves having variable openings in parallel between swinging side plates opposed to each other. In the swing sorting device of the combine, a potentiometer for detecting the current opening of each of the sheaves is mounted inside one of the swing side plates, and a control line of the potentiometer is provided rearward along the outer surface of the swing side plate. The second technical means is characterized in that the control line of the potentiometer extends from the outer surface of one rocking side plate to the other rocking side plate along the rear surface between both rocking side plates. On the support frame side protruding and adjacent to the other swinging side plate, a through hole is provided which is located on the extension of the extended control line and is inserted therethrough. As a third technical means, a control line of the potentiometer is used. , It is characterized in that that at the intermediate position extending from the front end to the rear end of the swing plate from the inside of the swing plate is extended outwardly.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the accompanying drawings. In FIGS. 1 and 2, 1
Reference numeral denotes a handling room mounted on a traveling body of a combine (not shown). In the handling room 1, a first handling cylinder 3 is rotatably mounted on a handling cylinder shaft 2 which is suspended in the longitudinal direction of the body. A second handling cylinder 4 is juxtaposed on the rear side of the first handling cylinder 3 and a corrugated non-porous transfer plate 5 and an opening are provided below the handling cylinders 3 and 4. An oscillating sorter 10 composed of a plurality of variable sheaves 6, 6,..., And a later-described oscillating sorter 10 including a drive motor 8 and a drive mechanism 9 for controlling the opening of the sheaves 6, 6,. It is arranged. Reference numeral 3a denotes a receiving net stretched below the first handling cylinder 3, and 3b denotes a receiving net stretched below the second handling cylinder 4.

Below the rocking and sorting apparatus 10, there is a
A sorting air path 14 composed of 1 and the first flow plate 12 and the second flow plate 13 is formed, and the paddy that has leaked through the receiving net 3a is
By the specific gravity sorting action by the swinging motion of the swinging sorting body 7 before and after, and the wind sorting action by the sorting wind blowing through the sorting wind path 14, the first sorting, the second sorting, and the impurities such as the chaff are separated. ,
The first thing is dropped on the first gutter 15 and collected in a paddy tank via a fried grain tube (not shown). The second thing is dropped on the second gutter 16 and then passed through a second reduction cylinder (not shown) to receive the net 3a. From the second return port 17 provided on the lower side surface of the rocking sorter 7 for reselection.

A guide plate 18 is provided on the rear side of the first handling cylinder 3 so as to extend from its rotation range to the rotation range of the second handling cylinder 4.
A float sensor 19 for detecting the thickness of the paddy layer on the rocking sorter 7 is installed on the lower surface of the unit with its vertically rotatable actuator 19a extending downward. The rotation of the drive motor 8 is controlled by an angle change of the actuator 19a responding to the change, and the opening degree of the sheaves 6, 6,...
It is configured such that automatic sorting control for keeping the upper paddy layer thickness constant is performed.

As shown in FIGS. 2 and 3, the swing sorter 7 has a drive motor 8 and a rack and pinion mounted on one of the swing side plates 20a and 20b opposed to each other. In addition to disposing a cam plate 21 which is interlocked and connected, another sheave 6 is mutually connected to a sheave 6 'whose upper edge is pivotally connected to the rotating rod 22, and the cam plate 21 is swung in the front-rear direction. Thus, the sheave 6 ′ and the other sheaves 6, 6... Are variable in degree of opening by making the lower edge of the sheave 6 ′ follow the upper cam surfaces 21 a, 21 b, 21 c of the cam plate 21. .

A position below the cam plate 21 is a potentiometer 23 for detecting the current opening of each of the sheaves 6 ', 6, 6,...
Is mounted on the inside of the swinging side plate 20a via the bracket 24, and the actuator 19 of the float sensor 19
Adjustment of the sheave opening degree by the drive motor 8 is sequentially performed in cooperation with the operation of detecting the angle change by a.

As shown in FIGS. 4 and 5 (a), the potentiometer 23 has its detection shaft 23a protruding outward from the inside of
And an arm 23b pivotally supported by the tip of the detection shaft 23a abuts on a pin 21 'protruding from the cam plate 21 while maintaining a biased state. Control line 26 is connected
The control line 26, which has been once folded back at the neck of the connector 25, is inserted into a bush 27 fitted at an intermediate position from the front end to the rear end of the swinging side plate 20a, and the body of the body along the outer surface of the swinging side plate 20a. The control line 26 is configured to extend rearward.

As described above, one of the swing side plates 20a
As shown in FIGS. 3 and 5B, the control line 26 extending along the outer side surface of the other swing side plate along the rear surface portion 28 formed between the two swing side plates 20a and 20b. 20b and the other swinging side plate 20b
On the side of the support frame 29 that supports the swinging sorting device 10 in close proximity to the control line 26, a through hole 29a that is located on the extension of the extended control line 26 and is inserted therethrough is formed. The control line 26 is connected to a control unit (not shown) via a mounting bush 30 fitted to the connector 29. Reference numeral 31 denotes an attachment band for fixing the control line 26 to each of the outer side surfaces of the one swing side plate 20a and the rear surface portion 28.

In the configuration as described above, the sheaves 6, 6,...
The basic operation of varying the opening will be described. First, when the threshing work is started while the mowing work is being performed by the body running, the swing sorter 7 is detected by the float sensor 19 until a predetermined reference layer thickness initially set by a control unit (not shown) is reached.
Are held at the minimum opening degree shown in FIGS. 2 and 3.

If the thickness of the paddy layer on the rocking sorter 7 exceeds the upper and lower limits of the predetermined reference layer thickness during the threshing operation, the control unit receives a detection signal from the float sensor 19 and controls the unit. A signal is sent to the drive motor 8 and the cam plate 21 swings back and forth via the rack and pinion, and the cam surface 21
The sheaves 6 'following the a, 21b, 21c and the other sheaves 6, 6,... connected to the sheaves 6' are varied, and the amount of paddy leakage is appropriately increased or decreased so as to form a constant layer thickness.

The arm 23b abutting on the pin 21 'rotates the detection shaft 23a in connection with the forward and backward swing of the cam plate 21, and the change in the angle detection signal is transmitted to the potentiometer 23.
Sent to the control unit from the
The opening degree adjustment by the drive motor 8 is sequentially performed in cooperation with the detection operation of the paddy layer thickness by the paddle 9.

In the swing operation of the swing sorting device 10 as described above, in the present invention, in particular, each of the sheaves 6 'and 6, 6
The potentiometer 23 for detecting the current opening is mounted inside one of the swinging side plates 20a, and its control line 26 extends rearward along the outer surface of the swinging side plate 20a. When attaching and detaching the swing sorting device 10 during maintenance work or the like, the end of the control line 26 is simply removed together with the support frame 29, and an unreasonable tensile force is exerted on the control line 26, or other structural parts may be applied. The work can be performed without any trouble such as catching.

The control line 26 is connected to one of the swing side plates 2.
0a extends along the rear surface portion 28 between the two swinging side plates 20a and 20b to the other swinging side plate 20b side, and is inserted into the through hole 29a of the support frame body 29 located on the extension. Therefore, as shown in FIG. 5B, a substantially center position A of the swing range of the swing sorting device 10 swinging in the direction of the solid arrow.
As shown by a dotted line in the figure, the control line 26 swinging in connection with the swing sorting device 10 is swung about the insertion position into the through hole 29a as shown by a dotted line in FIG. This eliminates the need for an extra wiring length in anticipation of the swing amount, maintains a wiring state without kinks and flexures, prevents contact with other structural parts, and prevents damage to the control line 26 itself, etc. It is possible to secure a proper swing motion.

Further, the control line 26 of the potentiometer 23
Is taken out from a halfway position from the front end to the rear end of the swinging side plate 20a, so that the sheave 6 'juxtaposed on the rear half side is provided.
And 6, 6,... Are not obstructed by the swinging movement of the swing sorting body 7 accompanied by the variable opening control of 6, 6,..., And the routing of the control line 26 is effectively performed by effectively using the limited space. be able to.

[0020]

In summary, the present invention relates to a combine swinging and sorting apparatus comprising a plurality of sheaves of variable opening degrees pivotally supported in parallel between swinging side plates facing away from each other. The potentiometer for detecting the degree is mounted inside one of the rocking side plates, and its control line extends to the rear of the machine along the outer surface of the rocking side plate. When attaching or detaching the potentiometer, simply remove the end of the control line that extends behind it, and work without forcing the potentiometer control line to pull or hooking it to other structural parts. Can proceed. The control line of the potentiometer is
The above extending from the outer surface of one of the swinging side plates along the rear surface between the two swinging side plates to the other swinging side plate side, and extending to the support frame side adjacent to the other swinging side plate. Since a through hole is formed on the extension of the control line and inserted therethrough, the control line is taken out from a substantially central position of the swing range to be connected to this when the swing sorting device swings. Can be set as short as possible in anticipation of the swing of the control line, thereby maintaining a smooth swing motion without causing contact with other structural parts and damage to the control line. be able to. Further, since the control line of the potentiometer extends from the inside to the outside of the swinging side plate at an intermediate position from the front end to the rear end of the swinging side plate, the limited space of the swing sorting device can be effectively used. The wiring of the control lines of the potentiometer can be effectively grouped without hindering the swinging motion while using the swinging device, and the swinging width of the swing sorting device can be set as large as possible. And so forth, which are useful new effects.

[Brief description of the drawings]

FIG. 1 is a partially omitted side view of a handling room.

FIG. 2 is a side view of a main part of the swing sorting device.

FIG. 3 is a partially omitted side view showing, on an enlarged scale, a rear portion of the swing sorting device.

FIG. 4 is an enlarged side view of a main part showing an interlocking relationship between a cam plate and a potentiometer.

FIG. 5A is a rear view of a main part showing a mounted state of a potentiometer. (B) is a rear view showing wiring of control lines to the support frame.

[Explanation of symbols]

 Reference Signs List 6 sheave 6 'sheave 10 swing sorter 20a swing side plate 20b swing side plate 23 potentiometer 26 control line 29 support frame 29a through hole

Claims (3)

[Claims] 1. A combine swinging and sorting apparatus comprising a plurality of sheaves of variable opening degrees pivotally supported in parallel between swinging side plates opposed to each other, wherein one of a potentiometer for detecting a current opening degree of each of the sheaves is provided. And a control line extending rearward along the outer surface of the swinging side plate, wherein the swinging side plate is attached to the inside of the swinging side plate. 2. The control line of the potentiometer extends from the outer surface of one of the oscillating side plates to the other oscillating side plate along a rear surface between the two oscillating side plates, and is connected to the other oscillating side plate. 2. The swing sorter in a combine according to claim 1, wherein a through hole is formed on the side of the adjacent support frame so as to extend through and extend through the control line. 3. The control line of the potentiometer extends from the inside to the outside of the swinging side plate at an intermediate position from the front end to the rear end of the swinging side plate.
Or the swing sorting device in the combine according to 2.