JPH068670Y2 - Handling teeth in thresher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to an improvement of a treating tooth in a thresher.

2. Description of the Related Art The handle teeth in a thresher are generally formed in a V shape by hard steel wire, piano wire, etc. A structure having a structure designed to improve the performance and prevent the wire from being entangled in the straw is often used (see FIGS. 9 and 10).

As a method of fixing the internal handling teeth, the above-mentioned conventional one is, for example, as shown in FIG. 9, mounting the internal handling teeth 4 between the mounting holes 3 and 3 of the handling teeth 2 provided on the outer peripheral surface of the handling cylinder 1. Holes 5 and 5 are provided, and a V-shaped internal handle tooth 4 which is slightly smaller than the handle tooth 2 is inserted into the mounting holes 5 and 5 and fixed through a flange nut 6, or as shown in FIG. In general, a mounting structure in which an internal handle tooth 4 composed of a screw rod body 4a and a plate body 4b is inserted into a mounting hole 5 and fixed through a flat washer 7, a spring washer 8 and a double nut 9 is generally adopted. ing.

Further, as disclosed in Japanese Utility Model Laid-Open No. 59-98749, the one in which the inner handle teeth are fastened together with the handle teeth on the outer peripheral surface of the handle barrel is also known as a known technique.

Problems to be Solved by the Invention However, in the conventional structure shown in FIG. 9 and FIG. 10, the handle teeth 2 and the inner handle teeth 4 are individually screw-fastened, so that the number of assembling steps is increased. (Including during maintenance)
Not only becomes extremely large, but also the weight of the handling cylinder becomes heavy, and inevitably the weight and strength of the handling cylinder-related parts (transmission parts such as shafts and gears and frame) must be increased overall. However, the influence on the cost of the entire machine was extremely large.

Further, as described in Japanese Utility Model Application Laid-Open No. 59-98749, the above problem can be solved by jointly tightening the internal handling teeth and the handling teeth, but since the handling teeth are considerably impacted, In order to secure a sufficient tightening force, the screw parts at both proximal ends of the handle teeth are tightened to the outer circumference of the handle cylinder in a direction orthogonal to the outer peripheral surface of the handle cylinder, that is, toward the center of the handle cylinder. When the inner handle is tightened together with the handle on the outer surface of the handle, the tip spacing of the screw on both ends of the handle and the mounting holes on the left and right of the mounting part of the inner handle (the screw on both ends of the handle) The intervals of the holes to be inserted are very different, and after all, it cannot be assembled unless the play of the mounting holes for the internal handle teeth is large. Therefore, the effective area of the tightening seat of the handle tooth is inevitably narrowed, which causes a problem of insufficient tightening force, that is, insufficient mounting strength.

SUMMARY OF THE INVENTION Therefore, according to the present invention, in the inside of a V-shaped handle tooth 22, a standing action piece 21a and left and right attachment pieces 21b and 21b that are surface-bonded to the outer peripheral surface of the handle cylinder 10 are provided. The internal handle teeth 21 formed integrally with the body by bending are provided, and the left and right mounting pieces 21b,
21b are inserted into the insertion holes 24 and 24 and the mounting holes 25 and 25 formed on the outer circumference of the handle cylinder 10 to insert the screw portions 22a and 22a provided at both proximal ends of the handle tooth 22 into the handle tooth 22 and the internal handle. Tooth 21
Is fastened together with the outer periphery of the handling cylinder 10, and the plate body forming the internal handling teeth 21 is made of an elastic material.
A slit 23 is formed by cutting out from the central portion between the left and right attachment pieces 21b, 21b to the inner middle part of the handling action piece 21a so that the space between the left and right attachment pieces 21b, 21b can be expanded and contracted. Therefore, the above conventional problems are to be solved.

Action Since the internal handle tooth 21 is formed of a plate body having elasticity, and the notched slit 23 is provided in the internal handle tooth 21, the left and right attachment pieces 21b, 21b can be expanded and contracted against the elasticity. Therefore, the mounting pieces 21b, the insertion holes 24 of the 21b,
Both screw parts 2 of the handle teeth 22 without forming 24 particularly large
Since 2a and 22a can be inserted into the insertion holes 24 and 24, when the handle teeth 22 and the internal handle tooth 21 are tightened together, the play of the insertion holes 24 and 24 can be minimized to provide a sufficient tightening force. Obtainable.

Further, a tightening nut dedicated to the internal handle teeth 21 is not necessary, and the internal handle teeth 21 are tightened together with the handle teeth 22, so that the number of assembling steps is reduced, and the weight of the handle barrel and the weight of the handle barrel can be reduced. Therefore, the cost of the entire machine is reduced.

Example A is a threshing machine in which an oscillating sorting body 11 is provided below the handling cylinder 10, and a first gutter 12 and a second gutter 13 are provided below the oscillating sorting body 11. A spiral carrier 14 communicating with the second gutter 13 is obliquely installed in the. This spiral carrier 14
An opening 15 is opened in the middle of the conveyance of the net, and a net 16 is mounted in the opening 15 so as to be slidably adjusted in the outer peripheral direction of the spiral conveyer 14, and the net 16 is made into a threshing material and a threshing state. Accordingly, it is possible to manually or automatically switch between the stretched state (see FIG. 5) and the open state (see FIG. 6). The opening 15 is exposed through the reducing gutter 17 on the rocking sorting body 11 of the threshing machine A, and with this configuration, the second gutter 13 is introduced into the spiral transfer body 14 from the transfer end portion of the second gutter 13. The bait is forcibly transported by the spiral transporter 14, and the cuttings and the branches adhering to the branches are subjected to the rubbing action of the spiral 14a and the net 16 to be made into single grains and reduced on the rocking sorter 11. The foreign matters such as culms and scraps pass through the net 16 and are discharged to the outside of the machine from the discharge port 18 provided at the end of conveyance.
The ideal second product reduction system that can dramatically improve the threshing capacity is used. In the figure, 19 is a feed chain, 20 is a sardine, and b is a receiving net.

Reference numeral 21 denotes an internal handle tooth according to the present invention. The internal handle tooth 21 is a V-shaped handle tooth which is arranged upright on the outer peripheral surface of the handle cylinder 10 as shown in FIGS. 1 and 2. 22 inside the outer handle tooth 2
2, the handling action piece 21a standing upright along the upright direction and the left and right mounting pieces 21b, 21b face-bonded to the outer peripheral surface of the handling barrel 10 are integrally bent by a plate body having elasticity. It will be done. Then, from the central portion between the left and right attachment pieces 21b, 21b, the handling action piece 2
A slit 23 is formed by cutting out in the middle part of the inside of 1a. Further, the attachment piece 21b is provided with an insertion hole 24 for the screw portion 22a at the base of the handle tooth 22. Reference numeral 25 is a mounting hole for the handle teeth 22 formed on the outer periphery of the handle cylinder 10, and 26 is a flange nut.

Now, in order to assemble the internal handle teeth 21 into the handle cylinder 10, first, the screw portion 22a of the handle teeth 22 is inserted into the insertion hole 24 provided in the attachment piece 21b of the internal handle teeth 21 to internally handle the handle teeth 22. Assemble the teeth 21 first. Then, after inserting the screw portion 22a of the handle tooth 22 into the mounting hole 25 of the handle body 10 in that state, the flange nut 2
If the inner handle 21 is clamped and fixed at 6, the inner handle 21 is clamped together between the outer peripheral surface of the handle cylinder 10 and the handle flange 22b as shown in FIG. By the way, the internal handle tooth 21 of the present invention
Is a plate body having elasticity, and the slit 23 is provided, so that the distance between the left and right mounting pieces 21b, 21b can be expanded or contracted against the elasticity, and therefore the insertion holes of the mounting pieces 21b, 21b can be inserted. Since both screw portions 22a, 22a of the handle tooth 22 can be inserted into the insertion holes 24, 24 without forming 24, 24 particularly large, when the handle tooth 22 and the inner handle tooth 21 are tightened together, It is possible to assemble the insertion holes 24, 24 with the play of the holes eliminated as much as possible. By reducing the play of the insertion hole 24, the effective area of the tightening seat (D-d2 in FIG. 3) of the handle tooth 22 is increased by that amount, so that the mounting strength of the inner handle tooth 21 and the handle tooth 22 is increased. As a result, the tightening portion is prevented from loosening due to the impact and the impact stress is distributed to the handle teeth 22 together with the internal handle teeth 21 being tightened together.

EFFECTS OF THE INVENTION As described above, according to the present invention, inside the V-shaped handle teeth 22, the standing action piece 21a and the left and right attachment pieces 21b and 21b that are surface-bonded to the outer peripheral surface of the handle body 10 are formed by the plate body. The internal handle teeth 21 formed by bending integrally are provided, and the insertion holes 24, 24 provided in the left and right attachment pieces 21b, 21b and the handle cylinder 10 are provided.
Screwing portions 22a, 22a provided at both base ends of the handle tooth 22 are inserted into the mounting holes 25, 25 formed on the outer periphery to tighten the handle tooth 22 and the inner handle tooth 21 together with the outer periphery of the handle cylinder 10. The plate body forming the internal handling teeth 21 is made of an elastic material, and is cut out from the central portion between the left and right attachment pieces 21b and 21b to the inner middle portion of the handling action piece 21a. To form the slit 23, and the left and right mounting pieces 21
Since the space between b and 21b can be expanded and contracted, the insertion holes 24 and 2 of the left and right mounting pieces 21b and 21b of the internal handle tooth 21 are formed.
4 does not need to be made particularly large, and both screw portions 22 of the handle teeth 22
Since the handle teeth 22 and the inner handle tooth 21 can be fastened together by inserting a and 22a into the insertion holes 24 and 24, it is possible to assemble the insertion holes 24 in a state where there is as little hole backlash as possible. As a result, the effective area of the tightening seat of the handle tooth 22 is increased by the amount that there is no backlash, so that the mounting strength of the handle tooth 22 and the inner handle tooth 21 is increased, and the loosening of the tightening portion due to impact or the like is prevented. Further, since a tightening nut dedicated to the internal handle tooth 21 is not necessary and the internal handle tooth 21 is tightened together with the handle tooth 22, the number of assembling steps can be reduced as much as possible, and the handle barrel weight and handle barrel-related parts can be reduced. Can also be made lighter, which in turn reduces the overall cost of the machine.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an internal handle tooth, FIG. 2 is a state view of a handle tooth and an internal handle tooth attached to a handle barrel, FIG. 3 is an enlarged cross-sectional view of an attachment portion of the handle tooth and an internal handle tooth, and FIG. The figure is a partially cutaway side view of a thresher equipped with the present invention, and FIG. 5 is AA in FIG.
FIG. 6 is a sectional view, FIG. 6 is an explanatory view of the action of the opening provided in the spiral transport body, FIG. 7 is a partially cutaway side view of the spiral transport body, and FIGS. It is sectional drawing which shows a state. In the figure, 10 is a handling cylinder, 21 is an internal handling tooth, 21a is a handling action piece, 2
1b is a mounting piece, 22 is a handle tooth, 22a is a screw part of the handle tooth,
23 is a slit, 24 is an insertion hole, and 25 is a mounting hole.

Claims (1)

[Scope of utility model registration request] 1. A V-shaped handle tooth 22 is formed by integrally bending a standing action piece 21a and left and right attachment pieces 21b, 21b which are surface-bonded to the outer peripheral surface of the handle cylinder 10 by a plate body. The internal handle teeth 21 are provided, and the left and right mounting pieces 21b, 21 are provided.
The screw holes 22a and 22a provided at both proximal ends of the handle teeth 22 are inserted into the insertion holes 24 and 24 provided in b and the mounting holes 25 and 25 formed on the outer periphery of the handle body 10 to insert the handle teeth 22 and the inner handle. The teeth 21 are fastened together on the outer circumference of the handle cylinder 10, and the plate body forming the internal handle teeth 21 is made of an elastic material, and the center between the left and right attachment pieces 21b, 21b is provided. The slit 2 is formed by cutting out from the part to the middle part of the inside of the handling piece 21a.
3 is formed, and the interval between the left and right attachment pieces 21b, 21b is configured to be expandable / contractible.