JPH0759451A - Structure for installing and removing threshing drum - Google Patents

Abstract

PURPOSE:To provide a thresher having a threshing drum, simply detachable and capable of readily carrying out the maintenance. CONSTITUTION:This structure for installing and removing a threshing drum 6 of a thresher 2 from the lateral side thereof is constituted by securing threshing drum supporting members 15 and 15 for inserting a driving shaft 14 in the front and rear surface parts of a threshing drum 6, engaging pulley supporting members 8 and 8 with bearings 18 and 19 respectively secured to an inlet side plate 16 arranged in front of the threshing drum 6 and an outlet side plate 17 arranged at the rear thereof, screwing an input pulley 9 for inserting the driving shaft 14 thereinto into the pulley supporting member 8 of the inlet side plate 16, screwing a straw discharge pulley 23 for inserting the driving shaft 14 thereinto onto the pulley supporting member 8 of the outlet side plate 17, extending boss parts (9a) and (23a) of the input pulley 9 and straw discharge pulley 23 to the side of the threshing drum supporting members 15 and 15 and enabling the fitting thereof to the threshing drum supporting members 15 and 15 in the driving rotational direction and disconnection thereof in the reverse rotational direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for facilitating maintenance by making a handling cylinder in a threshing device detachable.

[0002]

2. Description of the Related Art Conventionally, in the threshing work by a threshing device, the cut grain culms are conveyed to the threshing device, the shredder of the threshing device is rotated to shatter, and the straw is discharged to the outside of the machine, and the fine grain is granulated. Although it is stored in a tank, when threshing work is performed in this way, straw debris and branch shoots are generated on the handling blades protruding on the circumferential surface of the handling barrel and the crimp nets arranged on the lower outer periphery of the handling barrel. It may get clogged or get entangled, and if these are left unattended,
Since the handling blades are abnormally worn or deformed and threshing performance is deteriorated or noise is generated, the handling barrel can be detached, and the handling barrel is removed to remove straw scraps and branch shoots. Further, the handling barrel was also removed when performing maintenance such as replacement of the handling blade.

[0003]

However, the handling barrel of the conventional threshing apparatus is, for example, as shown in FIG.
Boss 42 · 42 fixed from the inside of the inside to the center inside of the front and rear surface
Via the fixing bolts 43, 43 to the fixed seats 44a, 44a of the handle barrel drive shaft 44 supported by bearings 50, 51 fixed to the inlet side plate 48 and the outlet side plate 49, respectively. The lid 41 of the handling body 41 is attached and detached.
To remove the handle 41, remove the cover 47, the input pulley 45, the straw pulley 46, etc., loosen the fixing bolts 43, 43, and engage with the fixed seats 44a, 44a. It is necessary to remove the drive shaft 44 to remove it, the handle cylinder cannot be easily removed,
It took a long time to work. Therefore, an object of the present invention is to configure a threshing device having a handling cylinder that can be easily removed and can be easily maintained.

[0004]

The problems to be solved by the present invention are as described above. Next, the means for solving the problems will be described. That is, in a configuration in which the handling cylinder axially mounted between the entrance side plate and the exit side plate of the threshing device is detachable from the side, the handling cylinder support members are fixed to the front and rear surfaces of the handling cylinder, and at least the entrance side plate or the exit side plate. The pulley support member is disposed on either side of the pulley, and the pulley is mounted on the pulley support member so as to be slidable and positionally fixable, and the boss portion of the pulley can be brought into and out of contact with the handle body support member. The drive shaft can be inserted into and removed from the member.

[0005]

With this structure, when the handling cylinder of the threshing device is removed, the drive shaft is pulled out in one direction with respect to the machine and the boss portion of the pulley is separated from the handling cylinder support member. A gap is formed between the handle and the handle support member, and the handle can be taken out to the side. Also, the handling cylinder can be attached in the reverse order.

[0006]

EXAMPLES Next, examples will be described. FIG. 1 is an overall side view of a combine, FIG. 2, a side sectional view of a threshing device 2 having a handling cylinder attaching / detaching structure of the present invention, and FIG. 3 is a side sectional view showing a portion of an input pulley 9 of the threshing device 2. 4 is a perspective view of the pulley supporting member 8, FIG. 5 is a perspective view of the input pulley 9, FIG. 6 is a side sectional view showing another embodiment, and FIG. FIG. 8 is a plan view showing the moved state.
Is also a front view, and FIG. 9 is a front view showing the configuration of another inlet wheel 21 '.

An embodiment of the handling cylinder detaching structure of the present invention will be described with reference to the combine threshing device 2 shown in FIG. First, in FIG. 1 and FIG. 2, the structure of the combine will be described. The harvesting device 1 is projected to the front of the fuselage, the threshing device 2 is arranged in the rear part of the harvesting device 1, and the sorting device is provided below the threshing device 2 by the side. On the other hand, the driver's seat 3 and the Glen tank 4 are arranged at the rear part thereof, the straw treating device such as a cutter is arranged at the rear part of the threshing device 2, and by the feed chain 5 arranged at the side part of the threshing device 2. The roots of the harvested grain culms are sandwiched and conveyed backward, and during this conveyance, the handling cylinder 6 having the drive shaft 14 is rotated in the front-rear direction, and a large number of protrusions are projected on the peripheral surface of the handling barrel 6. After being shredded by the blades 6a, 6a ..., the grain leaks from the crimp net 13, falls downward, and is sorted, and then stored in the Glen tank 4, and the straw is cut by the straw treatment device and cut in the field. It is configured to emit onto a surface.

Since it is necessary to open the side when removing the handling cylinder 6 of the threshing device 2, the side cover 10 is opened laterally with the rear part as a fulcrum in the side cover 10 that covers the Karako and the pulleys that drive the conveyor. A feed chain support plate 11 that can be rotated is disposed rotatably, and a sandwiching rod 7 that presses the grain culm from above the feed chain 5 is disposed on a side portion of the upper cover 12, and the upper cover 12 is It is rotatably supported upward with the side of the Glen tank 4 as a fulcrum.

Next, referring to FIG. 2 and FIG. 3, the structure for detaching the handling cylinder of the present invention will be described.
Are arranged in the front-rear direction of the machine, and recesses are formed in the front-rear surface portions thereof, and handling cylinder support members 15, 15 are fixedly provided in the center of the recesses, respectively. An inlet side plate 16 is provided on the front side of the handling cylinder 6, an outlet side plate 17 is provided on the rear side thereof, a bearing 18 is fixedly mounted on the inlet side plate 16, and a bearing 19 is provided on the outlet side plate 17. Is fixed. A pulley support member 8 is locked to the bearing 18 via a retaining ring 20, and a boss portion 9a of an input pulley 9 is screwed to the pulley support member 8. The bearing 19 is also a pulley support member. 8 is locked, and the boss portion 23a of the straw pulley 23 for transmitting power to the straw chain is screwed.

The drive shaft 14 of the handling cylinder 6 has a polygonal cross section, and the input pulley 9 corresponds to the shape.
Has a hole 9b, the handle barrel support member 15 has a hole 15b,
Holes 23b are opened in the straw pulley 23, and the drive shaft 14 is inserted into these holes 9b, 15b, 23b, and the fixing members 24, 24 are tightened to the threaded portions at both ends. 14 is fixed so that the handling cylinder 6 can be rotated.

Further, the front side of the handling cylinder 6 and the inlet side plate 16
Between the rear side of the handle cylinder 6 and the outlet side plate 17, an inlet wheel 21 for preventing the long straw from being wound around the driving portion.
7 and 8, the inlet wheel 21 and the outlet foil 22 are provided with holes 21b and 22b at their central portions, respectively.
The outer peripheral projections 21a and 22a projecting inward from the projecting portions of the recesses on the front and rear surfaces are provided, and are fixed to the upper inner ends of the inlet side plate 16 and the outlet side plate 17 via fixing members 26 and 26, respectively. , Inlet side plate 16 and outlet side plate 17
Pivot parts 25, 25 provided at the lower end of each outer end
It is constructed so that it can be pivoted to and rotated laterally.

Further, as shown in FIG. 4, the pulley supporting member 8 has a polygonal head portion 8a on which a tool can be hung with a pipe-shaped member, and a bearing 18 (19) is provided at the tip thereof.
A groove 8c is formed for mounting the retaining ring 20 when it is inserted into and is attached to the inner peripheral surface of which a female screw 8f is cut. As shown in FIG. 5, the boss portion 9a of the input pulley 9 is extended so that its tip projects from the pulley supporting member 8 when screwed, and a male screw 9f is cut on the outer peripheral surface, and the tip thereof is tapered. The portion 9c is formed. The input pulley 9 and the straw pulley 23 are configured to be fitted to the pulley supporting members 8 and 8 when rotated in the driving rotation direction, and detachable when rotated in the reverse rotation direction.

A chamfered portion 15a is formed at a portion of the hole portion 15b of the handle barrel supporting member 15 located inside the handle barrel 6 so as to be easily inserted when the drive shaft 14 is inserted. A taper portion 9 formed at the tip of the boss portion 9a of the input pulley 9 is provided at a portion outside the handling cylinder 6.
An inclined portion 15c into which c is fitted is formed. Also,
As with the input pulley 9, a taper portion that fits the inclined portion of the handle barrel support member 15 is formed at the tip of the boss portion 23a of the straw pulley 23, and a male screw is cut on the outer peripheral surface.

In the above-mentioned structure, when removing the handling cylinder 6, first, the side cover 10 on the side of the threshing device 2 is removed, the upper cover 12 is opened upward, and the clamping rod 7 is opened.
Is separated from the feed chain 5, and the feed chain support plate 11 is pivoted to the side to open the feed chain.

Then, as shown in FIG. 3, the fixing members 24, 24 for fixing the drive shaft 14 of the handling cylinder 6 are removed, and the drive shaft 14 is pulled out in the forward direction with respect to the machine, and the tool is supported by the pulley. The input pulley 9 applied to the head portion 8a of 8 is turned in the forward direction (the direction of the arrow W) and the taper portion 9 at the tip of the boss portion 9a
c and the inclined portion 15c of the handle barrel support member 15 are released from each other and positioned on the inner peripheral surface of the pulley support member 8 where the female screw 8f is cut, the pulley support member 8 and the handle barrel support member 15 A gap S is created between At this time, the inside of the protruding portion of the concave portion on the front surface of the handling cylinder 6 is the outer peripheral protruding portion 21 of the inlet wheel 21.
It abuts and is supported by a. Similarly, when the straw pulley 23 is turned rearward, a gap is created between the pulley support member 8 and the handle barrel support member 15, and the inside of the protrusion of the concave portion on the rear face of the handle barrel 6 becomes the outer peripheral protrusion 22a of the outlet wheel 22. Abutted and supported.

When the fixing members 26, 26 of the inlet wheel 21 and the outlet wheel 22 are detached and made rotatable, the handling cylinder 6 is placed on the upper surface of the crimp net 13, as shown in FIGS. As shown, move the handling cylinder 6 to the side (arrow X
(Direction), the inlet wheel 21 and the outlet wheel 22 rotate about the pivots 25, 25 as fulcrums and come out together. Then, the inlet wheel 21 is moved forward (in the direction of arrow Y1) or the outlet wheel 22 is moved backward (in the direction of arrow Y2) so that the handle cylinder 6 does not hit the handle cylinder 6 sideways (direction of arrow Z). Take it out.

On the contrary, when the handling cylinder 6 is mounted, the recesses on the front and rear surfaces of the handling cylinder 6 and the inlet wheel 21 and the outlet wheel 22 are provided.
Are engaged with and placed on the crimp net 13, the inlet wheel 21 and the outlet foil 22 are fixed to the inlet side plate 16 and the outlet side plate 22 via the fixing members 26, 26, and the tool is attached to the pulley supporting member 8.8. Applying to the heads 8a, 8a, the input pulley 9 and the straw pulley 23 are rotated to rotate the handle barrel support member 1
Fitted in 5 ・ 15, each hole 9b ・ 15b ・ 1
The drive shaft 14 is mounted from the front with the 5b and 23b aligned. At this time, since the chamfered portion 15a is formed on the handle barrel support member 15, the drive shaft 14 can be easily inserted. Then, the drive shaft 14 is fixed by fastening the fixing members 24, 24 to the threaded portions at both ends of the drive shaft 14, and the handling cylinder 6 becomes rotatable.

Next, as another embodiment, the input pulley 9
6 is screwed to the pulley supporting member 8 by a screw action and fitted into the handling cylinder supporting member 15, as shown in FIG.
The boss portion of the input pulley 9'and the boss portion of the straw pulley 23 'are extended and inserted so that they can be directly inserted into the bearing 18 fixed to the inlet side plate 16 and the bearing 19 fixed to the outlet side plate 17, respectively. Snap rings 31, 31 are attached to the tips of the boss portions so that they are brought into contact with the handling body support members 15 ', 15' fixedly provided in the center of the recesses on the front and rear surfaces of the body 6.
The input pulley 9'and the straw pulley 23 'so that a gap S'-S' is created when the handle barrel 6 is attached and the handling cylinder 6 is removed.
There is a configuration that allows sliding.

With such a structure, the handling cylinder 6
When removing the, the fixing members 24, 24 of the drive shaft 14
And pull out the drive shaft 14 to the front with respect to the main body, and the input pulley 9 ′ to the front with respect to the handling cylinder 6 (direction of arrow W1).
Then, the straw pulley 23 ′ is rearward with respect to the handle barrel 6 (arrow W).
(2 directions) and slides between the boss portion of the input pulley 9'and the handle body supporting member 15 'and the straw pulley 23'.
Between the boss of the and the body support member 15 ', a gap S' ・ S '
To facilitate removal of the handling cylinder 6. In addition, the handling cylinder 6 can be attached in the reverse order, and the handling cylinder support member 15 ′ · 1
A chamfered portion is formed at 5'to facilitate insertion of the drive shaft 14.

In addition, in this embodiment, the entrance foil 2
1 and the outlet foil 22 have a function of preventing the long straw from being wound around the drive portion of the handling cylinder 6 and holding the handling cylinder 6 when the handling cylinder is attached or detached. In order to improve the holding performance when the handling cylinder 6 is rotated sideways (direction of arrow X), the inlet wheel 2 shown in FIG.
The inlet foil 21 'and the outlet foil (not shown) are provided at the wheel connecting plate 30 which is in the lower position when rotated like 1'.
The wheel connecting plate 30 holds the handling cylinder 6 and also has the spike cutting direction plate 30a. Also, the entrance wheel 21 '
(Or either the exit foil) is provided with hinges 33, 33 so that the upper side can be bent outward with respect to the handling cylinder 6,
It is also possible to adopt a configuration in which the handle cylinder 6 can be easily attached and detached.

Further, in the present embodiment, the inlet foil 2
1 and the outlet foil 22 are provided, but a configuration without them is also possible. In that case, the handling cylinder 6 is directly removed to the side without rotating together with the inlet foil 21 and the outlet foil 22. Become. Further, although the pulley supporting member 8 is configured to be fixed with a tool, a stay that is engaged with the head portion 8a of the pulley supporting member 8 by operating a lever or the like when the handle cylinder 6 is attached or detached is provided, It is also possible to adopt a configuration that does not require tools.

[0022]

Since the present invention is configured as described above, it has the following effects. That is, the drive shaft is pulled out, and the boss portion of the pulley mounted on the pulley support member is separated from the handle barrel support member provided on the handle barrel, and a gap is created between the pulley support member and the handle barrel support member. By doing so, since the handling cylinder can be easily removed, maintenance of the handling cylinder and the crimp net can be easily performed, and the working time can be shortened. Further, since the handle cylinder can be mounted by engaging the boss portion of the pulley and the handle cylinder support member and inserting the drive shaft, it is possible to facilitate the assembly in the factory, Rattling at the time of mounting can be reduced, and since the pulley serves as a handle for creating a gap between the pulley support member and the handling cylinder support member, no extra parts are required and cost is reduced. Can be planned.

[Brief description of drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a side cross-sectional view of a threshing device 2 including the handling cylinder attaching / detaching structure of the present invention.

FIG. 3 is a side sectional view showing a portion of an input pulley 9 of the threshing device 2.

FIG. 4 is a perspective view of a pulley support member 8.

FIG. 5 is a perspective view of an input pulley 9.

FIG. 6 is a side sectional view showing another embodiment.

FIG. 7 is a plan view showing a state in which the handling cylinder 6 is rotated laterally outward.

FIG. 8 is a front view of the same.

FIG. 9 is a front view showing the configuration of another inlet wheel 21 ′.

FIG. 10 is a side sectional view showing a conventional example.

[Explanation of symbols]

 2 Threshing device 6 Handling barrel 8 Pulley support member 9 Input pulley 14 Drive shaft 15 Handling barrel support member 16 Inlet side plate 17 Outlet side plate 21 Inlet wheel 22 Outlet wheel 23 Exhaust pulley S S gap

Claims (1)

[Claims] 1. A configuration in which a handling cylinder axially mounted between an inlet side plate and an outlet side plate of a threshing device is detachable from the side,
A handling cylinder support member is fixedly mounted on the front and rear surfaces of the handling cylinder, and a pulley support member is disposed on at least either the inlet side plate or the outlet side plate, and the pulley is mounted on this pulley support member so as to be slidable and positionally fixable. A handling cylinder attachment / detachment structure characterized in that a boss portion of a pulley can be freely attached / detached to / from a handling cylinder support member, and a drive shaft can be inserted into and removed from the pulley and the handling cylinder support member.