JP3326367B2 - Threshing device handling cylinder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylindrical drum provided with spiral teeth on the outer peripheral surface thereof, and independent teeth disposed at predetermined intervals in the circumferential direction on the non-transferred surface of the spiral tooth. The first tooth portion of each independent tooth is protruded radially outward from the spiral tooth, and the independent tooth is attached to the end corresponding to the root of the spiral tooth. A two-tooth part is formed, and the posture is switched by reversing in the radial direction of the helical tooth in a state in which the first tooth part and a state in which the second tooth part protrude from the helical tooth. The present invention relates to a handling cylinder of a threshing device configured so as to be capable of being used.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Unexamined Patent Publication No. Hei 5-137448, the independent teeth are formed of a flat plate material with four corners of a diamond cut off, and the independent teeth are formed in a spiral shape. In order to attach the tooth handling surface to the non-transferred surface side of the tooth handling, one of the flat plate surfaces of the independent tooth handling, except for the first tooth portion (or the second tooth portion), has the entire spiral tooth handling surface. Was fixed in a state of contact with the non-transferred surface of the processed material.

[0003]

Generally, since the non-transferred surface of the spiral tooth is a gently curved surface, as in the prior art, the surface of the helical tooth is made of a flat sheet material. To attach the teeth to the non-transferred surface side of the spiral tooth handling, the first tooth portion (or the second tooth portion) of one plate surface of the independent tooth handling.
Means for fixing the bolt so that the entire surface of the plate other than the non-transferred surface of the spiral toothing comes into contact with the workpiece has the following problems.

That is, when the plate surface portion is abutted on the non-transferred surface of the workpiece in fixing the bolt, a portion that rises from the non-transported surface of the processed object appears on the plate surface portion, and the floating amount is slightly large. As a result, when the plate surface portion is bolted to the non-transferred surface of the workpiece, the force to bring the entire plate portion into close contact with the curved non-transported surface of the workpiece is applied to the independent teeth. Bending force) acts, and in addition to this situation, the helical tooth and the independent tooth are treated separately because the independent tooth has sacrificed toughness to increase abrasion resistance. While receiving the reaction force repeatedly, the independent teeth could break.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to improve the durability of an independent tooth by preventing an excessive mounting stress from being applied to the independent tooth.

[0006]

The constitution, operation and effect of the invention according to claim 1 are as follows. [Configuration] A spiral tooth is provided on the outer peripheral surface of the cylindrical drum, and the spiral tooth is
Independent teeth on the non-transfer surface of the workpiece at predetermined intervals in the circumferential direction
Attach the first tooth of each independent tooth from the spiral tooth
Projected radially outward, independent teeth are helical teeth
At the end corresponding to the original, protrudes in the opposite direction to the first tooth portion
The second tooth portion is formed, and the first tooth portion projects from the spiral tooth.
Helical toothing between the protruding state and the state where the second tooth portion protrudes.
Dia. In the radial direction so that the posture can be switched.
Grain handling cylinder with independent teeth attached to spiral teeth
Independent toothing between the first tooth part and the second tooth part
On the surface of the main body opposite to the side in contact with the spiral tooth,
The protrusion that protrudes in the direction perpendicular to the surface
Formed along the radial direction on both ends of the independent tooth
Of the protruding part on the surface in contact with the spiral tooth
A mounting seat that protrudes in the opposite direction to the
The diaper has the same width as the width of the protrusion in the radial direction.
In the circumferential direction, it is formed in the same width as the full width of the independent toothing body.
The independent seat is fixed by abutting the mounting seat on the non-processed surface of the spiral tooth.

[Operation] Since the mounting seat formed by raising a part of the independent tooth handling main body portion is fixed to the helical tooth handling non-transporting surface side of the spiral tooth handling tooth, the mounting seat is fixed when the bolt is fixed. When the processing object non-transporting surface is abutted, even if a part that rises from the processing object non-transporting surface appears at the mounting seat due to the gentle curvature of the processing object non-transporting surface. As in the prior art, the plate surface portion of one of the independent tooth handling surfaces other than the first tooth portion (or the second tooth portion) comes into contact with the non-transferred surface of the spiral tooth handling object. As compared with the means for fixing the bolts in the state, the maximum lifting amount is small. As a result, when the mounting seat is bolted to the non-transfer surface of the workpiece, the entire mounting seat is bent to the independent teeth. Force to bring it into close contact with the processed non-transfer surface ( Under force) also becomes small.

[Effect] Therefore, it is possible to avoid applying excessive mounting stress to the independent teeth, and to improve the durability of the independent teeth.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG.
FIGS. 2 and 3 show a threshing device 1 mounted on the all-culm input combine, and the threshing device 1
, A concave 4 is arranged below the handling cylinder 3, and a separating section 7 is provided below the concave 4, which is composed of an oscillating selecting device 5 and a Karamin 6. Then, a plurality of guides for guiding the processed material sent by the handling cylinder 3 rearward to the inner surface of the top plate 8 formed by bending the flat plate at a plurality of locations in a state substantially along the outer peripheral surface of the handling cylinder 3 in the front-back direction. Is provided.

The handling cylinder 3 has a spiral tooth 11 fixedly connected to an outer peripheral surface of a cylindrical drum 10, and an independent tooth 12 on a non-transfer surface of the spiral tooth 11 opposite to a processing object transport surface. Are attached at predetermined intervals in the circumferential direction.
The tooth portion 13 (see FIG. 4) is projected radially outward from the spiral tooth 11, and the processed material is supplied to the concave 4 by the first tooth portion of the spiral tooth 11 and the independent tooth 12. 13 for threshing.

As shown in FIGS. 4 (a), 4 (b) and 4 (c), the independent tooth 12 has a second tooth portion 14 at the end corresponding to the root of the spiral tooth 11. Then, the state where the first tooth portion 13 protrudes from the spiral tooth 11 and the second tooth portion 14
The helical tooth 11 is turned over in the radial direction of the helical tooth 11 so that the posture can be switched. That is, the first
If the teeth 13 are worn out over a long period of use, the second teeth 1
The posture of the independent teeth 12 is switched so that the teeth 4 protrude from the spiral teeth 11 so that the second teeth 14 can handle the teeth. With this structure, the service life of the independent teeth 12 is twice as long as that of the independent teeth 12 having only the first teeth 13. In addition, the independent toothing main body 15 between the first and second tooth portions 13 and 14 is formed such that the cross-sectional shape becomes a U-shape.

In order to attach the independent teeth 12 to the non-transferred surface side of the helical teeth 11, a part of the independent teeth main body 15 between the first teeth 13 and the second teeth 14 is attached. The mounting seat 16 formed by being raised is abutted on the non-transferred surface side of the helical toothing 11 and is fixed with bolts and nuts.

As shown in FIG. 5, the plurality of dust valves 9 are
The dust valve located at the foremost side is a fixed dust valve 9A, and the subsequent dust valve is a movable dust valve 9B. The fixed dust valve 9A is fixed to the inner surface of the top plate 8 in an inclined posture that is located rearward toward the lower end in the rotation direction of the handling cylinder, and each movable dust valve 9B has a middle portion in the longitudinal direction. Each is attached to the plate 8 so as to be rotatable around the vertical axis, and one end is
Connected to the interlocking link 17 of the book, and the dust valve 9B
Is configured to be adjustable in angle change via an electric motor M.

As shown in FIG. 3 and FIG. 5, on the inner surface of the top plate 8, a processing object which is entrained by the rotation of the handle drum 3 is prevented from being caught on the interlocking link 17 of the movable dust valve 9B. The guide plate 18 is provided from the fixed dust sending valve 9A side to the rearmost movable dust sending valve 9B side. The top plate 8 is provided with a top plate cover 19 for preventing the abrasion of the top plate, which covers the inner surface of a part of the entire length of the top plate 8, with its front edge along the guide surface of the fixed dust valve 9A. In this way, it is removably fixed by bolts via bolts.

As shown in FIGS. 1, 6 (a) and 6 (b),
An opening 20 for maintenance over the entire length of the concave 4 is formed in the left side wall of the threshing apparatus 1, and a lid 21 for closing the opening 20 is attached to an upper axis P parallel to the handle axis O. The lid 21 is swingably opened and closed outwardly, and the swingable lid 21 is arbitrarily swingably opened and closed by gas springs 22 provided at both ends of the opening 20 in the direction of the handling cylinder axis O. The position can be held at the position.

The gas spring 22 has a piston rod 24 positioned below the cylinder tube 23, and has a distal end (ie, a lower end) of the piston rod 24.
Is provided around a horizontal axis 25 pivotally supporting the rod. When the gas spring 22 is extended and the opening 20 is fully opened, an operator moves the stopper metal 26 to the horizontal axis. By swinging it around 25 and applying its swinging end 26a to the lower end of the cylinder tube 23, the descent of the cylinder tube 23 is prevented, and, for example, even if a downward external force is applied to the lid 21 for any reason. ,
The fully opened lid 21 is configured so as not to close unexpectedly. When the lid 21 is closed, the stopper fitting 26 is locked by a locking fitting 27 provided inside the opening 20.

[Brief description of the drawings]

FIG. 1 is an overall side view of an all-culm input combine.

FIG. 2 is a longitudinal side view of the threshing apparatus.

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

FIG. 4 (a) Front view showing the mounting structure of the independent toothing (b) Longitudinal side view showing the mounting structure of the independent toothing (c) Perspective view of the independent toothing

FIG. 5 is a plan view of the threshing apparatus.

FIG. 6A shows the opening and closing structure of the threshing side wall. FIG. 6B shows the structure around the gas spring when the threshing side wall is opened.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cylindrical drum 11 Spiral toothing 12 Independent toothing 13 First tooth part 14 Second tooth part 15 Independent toothing main body part 16 Mounting seat

Continuation of the front page (56) References JP-A-9-187150 (JP, A) JP-A-5-137448 (JP, A) JP-A-1-127426 (JP, U) (58) Fields investigated (Int) .Cl. ⁷ , DB name) A01F 12/20 A01F 12/22

Claims (1)

(57) [Claims] A spiral tooth is provided on the outer peripheral surface of a cylindrical drum, and independent teeth are attached at predetermined intervals in a circumferential direction on a side of the spiral tooth which is not to be processed with respect to a processed object. A first tooth portion is projected radially outward from the spiral tooth, and the independent tooth is provided on the end corresponding to the root of the spiral tooth with the first tooth portion. A second tooth portion that protrudes in the opposite direction is formed, and a radial direction of the spiral tooth is set in a state in which the first tooth protrudes from the spiral tooth and a state in which the second tooth protrudes. A thrusting device of a threshing device configured to be capable of switching its posture by inverting the independent toothing in a state where the independent toothing is attached to a spiral toothing.
Spiral body of the independent toothing body between the first tooth and the second tooth
Perpendicular to this surface on the side opposite to the tooth
In the circumferential direction.
Formed at both ends of the standing tooth body along the radial direction
And the protrusion on the surface in contact with the spiral tooth
A mounting seat that protrudes in the opposite direction to the
The mounting seat has a width in which the protrusion is formed in the radial direction.
And the full width of the independent toothing body in the circumferential direction
Threshing drum with and formed in a range of the same width, abutment threshing is fixed to the independent扱歯 the apparatus the mounting seat to the treated non-conveying surface of the spiral扱歯.