JPH05137449A - Threshing tooth-attaching structure of axial flow type threshing cylinder - Google Patents

Abstract

PURPOSE:To enable to attach a threshing tooth to a screw tooth by the tightening operation of a bolt by disposing in the threshing tooth, a contact surface to be brought into contact with the screw tooth for locking the rotation of the threshing tooth. CONSTITUTION:In an axial flow type threshing cylinder in which a threshing tooth 2C is attached to a screw tooth 2B in the state that the threshing tooth 2C is projected outside from the outer circumferential surface of the screw tooth 2B, a bolt 12 for connecting both the teeth to each other in the state that the threshing tooth 2C is attached to the side surface of the screw tooth 2B is disposed for constituting an attaching means for attaching the threshing tooth 2C to the side surface of the screw tooth 2B. A contact surface 9 for contacting with the outer circumferential surface 2C of the screw tooth 2B to stop the rotation of the threshing tooth 2C around the bolt 12 is formed in the threshing tooth 2C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw tooth which is mounted on a screw tooth so as to project radially outward from the outer peripheral surface of the screw tooth. The structure for attaching to.

[0002]

2. Description of the Related Art Conventionally, the handle teeth are fixedly attached to the screw teeth by connecting the handle teeth to the side surfaces of the screw teeth with two bolts.

[0003]

However, according to the above-mentioned prior art, from the viewpoint of mounting strength, only one bolt is required, but a detent for preventing rotation of the handle tooth around the bolt. One extra bolt is used only for the purpose. Therefore, when the handle teeth are attached to and removed from the screw teeth when the handle teeth are replaced, the two bolts are both troublesome and troublesome to tighten. , Slackening operation is required and workability is poor. This is an extremely serious drawback in view of the fact that the number of handle teeth to be attached to one axial flow type handle cylinder is 100 or more. An object of the present invention is to eliminate the above drawbacks.

[0004]

The feature of the handle tooth mounting structure of the axial flow type handle body according to the present invention is that the handle tooth is applied to the side surface of the screw tooth in the mounting means for attaching the handle tooth to the screw tooth. One bolt that connects the two in the attached state is provided, and a contact portion that abuts on the outer peripheral surface of the screw tooth to prevent rotation of the tooth around the bolt is provided. It is in the point of being formed.

[0005]

[Operation] While the handle tooth is connected to the screw tooth with one bolt, the handle tooth is fixed to the screw tooth by providing the contact portion for the screw tooth to prevent the handle tooth from rotating. Therefore, the handle teeth should be pressed against the screw teeth so that the contact part acts as a detent.
The handle teeth can be attached to the screw teeth by tightening the bolt of the book. Moreover, since the outer peripheral surface of the screw tooth is hit against the hitting portion, it is not necessary to modify the screw tooth to prevent rotation.

[0006]

Therefore, according to the present invention, the handle teeth can be securely and strongly attached to the screw teeth,
Tightening and slackening operation can be done with a single bolt, and handle teeth can be attached and removed with good workability. Moreover, the structure is simple and it can be applied to existing handle cylinders only by changing the specifications of handle teeth. It is now possible to provide a handle tooth mounting structure for an axial flow type handle body capable of performing the above.

[0007]

EXAMPLE As shown in FIG. 3, the threshing apparatus has an axial-flow type handling drum 2 mounted on the inside of a handling chamber 1 and a receiving net 3 provided below the axial-flow type handling drum 2 to receive the receiving net 3 An oscillating sorting device 4 for sorting the spilled material from the slab and a Karako 5 for generating a sorting wind are provided, and a screw 7 for collecting the first one of the sorted products and an oscillating sorting device 4 for the second discharged product. A reducing screw conveyor 8 for returning is provided. The axial-flow type handling drum 2 is provided on the outer peripheral surface of the barrel body 2A for feeding the threshing target in the handling chamber 1 to the barrel body 2A along the axial direction by rotating integrally with the barrel body 2A. The screw teeth 2B are fixed, and the handle teeth 2C are attached to each of the screw teeth 2B at a plurality of positions spaced apart in the longitudinal direction. In the figure, the rotation direction is indicated by arrow a.
And the feeding direction is indicated by an arrow b. As shown in FIG. 1 and FIG. 2, the handle tooth 2C is the screw tooth 2C.
A mounting plate portion 2a mounted on the screw tooth 2B in a state of being applied to the back surface of the side surface of B that does not feed.
And the screw teeth 2 when attached to the screw teeth 2B.
The tooth portion 2b protruding outward in the radial direction from the outer peripheral surface 2c of B
And are composed of one plate material. The handling tooth 2C
Is attached to the screw tooth 2B as shown in FIG.
As shown in FIG. 2, the mounting plate portion 2 is formed by passing through the bolt insertion hole 10B formed in the screw tooth 2B and screwing into the screw hole 10a formed in the mounting plate portion 2a.
One bolt 12 with a head that connects a to the screw tooth 2B is provided, and rotation of the mounting plate portion 2a around the bolt 12 with respect to the screw tooth 2B is prevented by the connection of the mounting plate portion 2a to the screw tooth 2B. It is configured by providing an engaging means for engaging so as to perform. In the engagement means, the mounting plate portion 2a has a smaller wall thickness than the tooth portion 2b, and both front and back surfaces of the handle tooth 2C are stepped surfaces.
A contact surface 9, which is a contact portion for contacting the outer peripheral surface 2c of the screw tooth 2B so as to prevent the handle tooth 2C from rotating around the bolt, is formed on the front and back surfaces of the handle tooth 2C. More specifically, by forming the contact surfaces 9 on the front and back of the handle tooth 2C, the handle tooth 2C can be attached by replacing the front and back of the handle tooth 2C. It is configured so that the front and rear of the rotation direction are interchanged.

[Other Embodiment] [1] In the above embodiment, the handle tooth 2C and the mounting means are changed as follows. That is, as shown in FIG. 4, as the handle teeth 2C, the two mounting plate portions 2a are arranged so as to sandwich the screw teeth 2B, and the upper end portions of the mounting plate portions 2a are connected to each other by the tooth portions 2b. In order to configure the mounting means, the one of the mounting plate portions 2a and the screw teeth 2B are provided with holes 10b and 10B for bolt insertion, respectively, which are penetrated from one mounting plate portion 2a side to mount the other mounting portion. By screwing the mounting plate 2a into the screw hole 10a formed in the plate 2a,
In order to prevent rotation of the handle tooth 2C around the bolt by contacting the outer surface 2c of the screw tooth 2B with the lower surface of the tooth portion 2b facing the mounting plate portion 2a. Form on surface 9. [2] In the above embodiment, the handle teeth 2C and the mounting means are changed as follows. That is, as shown in FIG. 5, the handle teeth 2C are separated by 180 degrees in phase around the bolt.
A hole 1 for inserting a bolt formed in the screw tooth 2B is provided to form a mounting means by disposing one tooth portion 2b.
One bolt 12 that connects the mounting plate portion 2a to the screw tooth 2B is provided by screwing into the screw hole 10a formed in the mounting plate portion 2a of the handling tooth 2C through 0B, and the handling tooth 2C is In a state where one of the front and back surfaces is attached to the side surface of the screw tooth 2B and the one tooth portion 2b is attached in a protruding state, the outer peripheral surface 2c of the screw tooth 2B is abutted to prevent rotation of the handle tooth 2C. The contact surface 9 and the other of the front and back surfaces are attached to the side surface of the screw tooth 2B and the other tooth portion 2b is attached in a projecting position so as to contact the outer peripheral surface 2c of the screw tooth 2B. And a second contact surface 9 that prevents rotation. In this case, two tooth portions 2b are selected to be used by reversing the handle tooth 2C upside down and reversing it. [3] In the above embodiment, the contact surface 9 is shown to extend over the entire length in the circumferential direction, but the contact surface 9 may be provided at intervals in the circumferential direction. [4] In the above embodiment, a surface is shown as the contact portion 9, but a pin or a protrusion may be attached to the handle tooth 2C to form the contact portion 9.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a main part.

FIG. 2 is a cross-sectional front view of the main part

FIG. 3 is a vertical side view of the threshing device.

FIG. 4 is a vertical cross-sectional side view of essential parts showing another embodiment.

FIG. 5 is a vertical cross-sectional side view of essential parts showing another embodiment.

[Explanation of symbols]

 2B Screw tooth 2C Handle tooth 2c Outer peripheral surface 12 Bolt 9 Contact part

Claims (1)

[Claims] 1. Screw teeth (2B) and handle teeth (2C)
In an axial flow type handling cylinder which is mounted so as to project radially outward from the outer peripheral surface (2a) of the screw tooth (2B), the mounting means for mounting the handling tooth (2C) to the screw tooth (2B). The screw teeth (2
B) is provided with one bolt (12) for connecting the handle teeth (2C) to the side face thereof, and the handle teeth (2C) are provided.
And a contact portion (9) which is in contact with the outer peripheral surface (2a) of the screw tooth (2B) and engages so as to prevent rotation of the handle tooth (2C) around the bolt (12). Handled tooth mounting structure for an axial flow type handle cylinder.