JPH08228583A - Spiral lifting device of threshing machine - Google Patents

Abstract

PURPOSE: To facilitate the detachment of a casing covering a gear for transmitting powder between two spirals and improve maintainability in the casing, in a spiral type lifting device for lifting threshed products with a vertical spiral and a lateral spiral. CONSTITUTION: In this spiral type lifting device for lifting threshed products with a lateral spiral 13 and a vertical spiral 19, the outside of a gear case for transmitting power between both the spirals is covered with a two-divided combination type openable casing 20b, and guides for transferring and distributing the threshed products between the lateral and vertical spiral are disposed on the outer peripheral surface of the gear case in a state projected toward the inner surface of the case.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spiral-type lifting device such as a frying tube of a thresher or a second reducing device mounted on a combine or a harvester.

[0002]

2. Description of the Related Art In a threshing machine, processed products after threshing are sorted by a specific gravity / wind sorting in a sorting section, and grains (fine grains) are stored in a hopper in a fried barrel and stored in a hopper or a paddy bag or Directly discharged to a carrier, etc., and secondary products such as cuttings and adhering grains of branch shoots are transferred to a swinging sorting body in the sorting unit with a second waste reducing cylinder, or to the threshing unit (handling room or processing room). It is reduced to a single grain. Further, as a lifting device such as a fried grain container or a second product reducing cylinder, a spiral type in which a spiral (scribing conveyor) is installed is often adopted as a reliable transfer material and a high adaptability to leakage material.

[0003]

When carrying such a grain, the grain may be bent into a corner shape by using a vertical spiral and a horizontal spiral, and in this case, both spirals are
Power is transmitted via a power transmission gear that is installed in the gear case. However, conventionally, this gear case is
It is covered with a sturdy casing made of cast metal,
Once this casing was once assembled to the machine body, it could not be easily removed, and it was difficult to clean and maintain the inside, resulting in poor maintainability.

Further, in the case of transferring grains from a horizontal spiral to a vertical spiral, for example, the transfer end of the horizontal spiral and the transfer start of the vertical spiral are respectively connected to the respective ends of the gear case having a corner shape. Because of the axially supported configuration, the vertical and horizontal spirals can be installed only up to the axially supported position of the gear case, and as a result, the grains are only transferred to the inner peripheral side of the corner of the casing, There is a problem that the continuous transfer is not performed on the outer peripheral side, and the grains are retained there, so that the smooth continuous transfer is impaired.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances in order to solve these problems, and a threshed product is pumped by using a horizontal spiral and a vertical spiral. In a thresher equipped with a spiral-type lifting device, the outer sides of the power transmission gear cases of the two spirals are covered with a split-type openable and closable casing, and the inside of the casing is shaped like a corner of the threshed product. In constructing the transfer take-up portion that is bent in a vertical direction, the outer peripheral surface of the gear case is divided into a transfer action side that is the inner corner side of the threshing material and a non-transfer action side that is the outer circumference side of the threshing in the casing. It is characterized in that a guide body for transferring and taking over the threshed material between the two is projected toward the inner surface of the casing. Further, according to the present invention, by having such a configuration, the maintainability is improved, and the grain is continuously transferred in the casing that covers the gear case smoothly.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The drawing shows a pre-treating threshing machine A mounted on a combine. Here, reference numeral 1 is a grain culm entrance 1'a
The handling chamber is formed by the handling chamber front side plate 1a, the handling chamber rear side plate 1b having the culm outlet 1'b, and the receiving net 1c, and the handling barrel 2 is pivotally supported in the handling chamber 1. A processing chamber 5 is provided on the opposite side of the feed chain 3 from the end of the handling chamber 1 to the rear of the machine body, and the long processing cylinder 4 is pivotally supported. 6 is a dust outlet, 7 is a dust outlet, 8 is a straw chain, 9
Is a culm cutting device.

In the sorting air passage a below the handling chamber receiving net 1c, there is an oscillating sorting body 10 composed of a non-perforated corrugated transport body 10a and a grain leaking body 10b integrally connected to the transport end side thereof. The sorting air from the Karato 11 is provided so as to flow substantially parallel to the handling barrel shaft (not shown), and a sorting portion is formed in the portion. Reference numeral 12 is a horizontal spiral for collecting the first thing, 13 is a horizontal spiral for returning the second thing, and a jumping plate 13 'is fixed to the transfer terminal end thereof. 14 is a suction fan, 15 is a stroller,
Reference numeral 16 is an auxiliary fan.

Reference numeral 17 denotes a swing receiving plate obliquely provided between the handling chamber receiving net 1c and the swing selecting body 10, which is not shown.
It is connected to the swing drive unit of the above so as to swing in the front-rear direction at all times, and its inclined lower end portion is on the corrugated transfer body 10a, and its inclined upper end portion is the handling chamber rear side plate 1b and the falling plate Q. They are faced below the fourth funnel R formed between the two. 1
Reference numeral 7a denotes a partition plate which is erected on the swing receiving plate 17, and the partition plate 1
By 7a, the second reduced product is prevented from being biased to one of the left and right sides on the rocking sorting body 10 so that even distribution can be achieved over the entire surface. Reference numeral 18 denotes a fried grain cylinder standing upright on the transfer end side of the first object collecting horizontal spiral 12, and the upper end discharge port thereof faces the grain tank. Reference numeral 19 is a horizontal spiral for reducing the second material, and a discharge blade f is fixedly provided at the transfer end portion thereof.

Numeral 20 is a bolt 22 attached to a side plate 21 for the sorting air passage.
Is a lightweight casing made of an iron plate that is detachably fixed by the casing 20.
One side (fixed side) 20a is welded to the support pipe 24 of the discharge case 23 having the discharge port 23a, and the other side (open / close side).
As shown in FIG. 1, 20b is openably and closably connected via a hinge 25. A lever 26 with a stopper 26a for a casing lock is mounted on the sorting air passage side plate 21 so as to be rotatable in the vertical direction. When the casing is closed, the flange portion 20'a of the opening / closing casing 20b is attached to the stopper 26a.
The casing 20 is joined and fixed in a palm shape by one-touch by pressing it against the side plate 21 of the sorting air passage at a. The casing 20 of the illustrated example has casings 20a, 20b of substantially symmetrical shape having flanges 20 'projecting from the outer periphery of the mating surfaces, and the lower portions of the casings 20a, 20b are bulged in a saucer shape.

Reference numeral 27 denotes a gear case for power transmission which is separate from the casing 20 and is formed in a corner shape, and the ends of the horizontal and vertical spiral shafts 13a and 19a are rotatably supported at their respective ends. However, on the outer periphery of the gear case 27, a protrusion (corresponding to the guide body of the present invention) 27a is provided so as to protrude in a curved disk shape, and the casing unit 20a,
On the circular wall surface of 20b, there are provided recesses 28 along which the gear case 27 is fitted at the proper set positions and into which the projections 27a are fitted, and one side of the projections 27a is always fitted into the casing 20a on the fixed side. When the casing 20 is closed, the other side of the ridge 27a is opened and closed when the casing 20 is closed.
It is designed to be fitted and locked in. And the ridge 27a
The entire gear case 27 is internally supported by the casing 20 via the recesses 28, and the ridges 27a move the inside of the casing 20 to the side of the corner where the second object is transferred (the transfer end side of the horizontal spiral 13). And the transfer start end side of the vertical spiral 19 and the non-transfer action side which is the outer peripheral side of the corner (vertical spiral 1).
It functions as a partition wall that separates the shaft 9 from the jumping plate 13 ') and a guide plate in the transfer and transfer portion from the horizontal spiral 13 to the vertical spiral 19.

Incidentally, a pin P or a protrusion Q for positioning the gear case may be integrally provided on the casings 20a and 20b side, and a positioning hole 28 'into which the pin P or the protrusion Q is fitted and locked may be provided on the gear case 23 side ( (See FIGS. 6 and 7). On the other hand, a pair of bevel gears 29, 30 are incorporated in the gear case 23, and are connected to the horizontal spiral shaft 13a and the vertical spiral shaft 19a by spline joints so as to keep the timing of the jumping plate 13 'and a large spiral blade described later. Has been done. The vertical spiral 19 has a large-diameter spiral portion 19 integrated with a boss 31 having a flange 31a.
A small-diameter spiral portion 19S having a discharge blade f fixed to L is detachably connected with a fixing bolt 32 also for positioning.
The end side of the spiral blade 10'L of the large-diameter spiral portion 19L is lapped from above with respect to the start end side of the spiral blade 19'S of the small-diameter spiral portion 19S to form a large-small spiral blade shape as a whole. Further, the spiral blade 10'L of the large-diameter spiral portion 19L has a structure in which the starting end side is cut out by a predetermined length, and the jumping plate 13 'at the end portion of the horizontal spiral and the starting end portion of the spiral blade 10'L of the vertical spiral 19 are formed. Is designed to prevent the rotation trajectory from trapping and to prevent the trapping and wrapping of straw chips.

By the way, on the upper surface of the discharge blade f fixed to the vertical spiral shaft 19a, there is provided a substantially elliptical anti-winding plate 33 having a radius equal to or larger than the radius of the discharge blade f.
9a is integrally fixed, and a hole 34, which is slightly larger than the winding prevention plate 33, is provided in the upper portion of the discharge case 23.
After assembling the vertical spiral 19 from the hole 34, the bearing is covered with a bearing holder 35 larger than the hole 34 to prevent dust from blowing out. When the winding prevention plate 33 is covered and formed in a disk shape having a diameter approximately the same as the spiral diameter, there is a drawback that straw is wound between the bearing portion 35a and the winding prevention plate 33 and the bearing portion 35a is damaged. If the radius of the anti-sticking plate 33 is formed in a disk shape having the same radius as the discharge blade f, such a drawback can be solved, but the mounting portion of the bearing holder 35 is provided outside the discharge case 23, or the discharge blade f is separated. This is because the structure must be made complicated and the cost becomes high. still,
In the above-mentioned present embodiment, the structure in which the second product is reduced on the rocking sorting body 10 has been described, but the present invention has a structure in which the second product is reduced into the threshing treatment chamber (the handling chamber 1 or the treatment chamber 5). It can also be used for a thresher, and the present invention can also be adopted for the fried cylinder 18.

In the above structure, the casing 20 is now
When inspecting / cleaning the inside or servicing the gear case 27, the lever 26 is rotated to operate the casing 20.
When the casing 20b on the opening / closing side is opened by hand by removing the lock, the casing 20b is easily opened with the hinge 25 as a fulcrum, so that the inside of the casing 20 can be easily inspected, cleaned, or the gear case 27 is maintained. Is improved. Further, during the mowing work, the second object transferred to the one side of the machine body by the horizontal spiral 13 is pushed out in the casing 20 by the jumping plate 1.
It is jumped up at 3'and inherited by the vertical spiral 19, but at that time, since the vertical and horizontal spirals 13 and 19 are arranged orthogonally, the projection of the gear case 27 does not work. The strip 27a separates the inner corner side that is the transfer action side and the outer corner side that is the non-transfer action side to prevent the second object from being sent to the non-transfer action side, and to continuously transfer the second item on the transfer action side. It serves as a guide, whereby the takeover action from the horizontal spiral 13 to the vertical spiral 19 is favorably performed.

On the other hand, after assembly, the gear case 2
7. A ridge 27a on a curved disk provided on the outer circumference of the casing 7 is fitted and locked in a concave portion 28 provided on the inner wall surface of the casing 20, and a downwardly bulging portion of the casing 20 envelops the entire gear case 27 for firm support. Therefore, not only is the mounting strength of the gear case 27 increased, but the casing 27 also serves as a protective cover for the gear case 23, which prevents the gear case 27 from being damaged by hitting an external obstacle.
Further, since the casing 20 is made of an iron plate which is lighter than a cast product, the casing 20 is lighter and the cost is reduced accordingly. In addition, although the second embodiment reducing device has been described in the present embodiment, the present invention can also be applied to a fried grain barrel for lifting the fine grain (first product).

[0015]

In summary, since the present invention is constructed as described above, only the one side of the casing divided into two is opened when the inside of the casing is maintained without removing the lifting device itself. Can be done easily. In addition, the guide body protruding from the outer peripheral surface of the gear case toward the inner surface of the casing divides the transfer acting side, which is the inner peripheral side of the threshing material in the casing, from the non-transfer operating side, which is the outer peripheral side of the corner, and spirals. Since the transfer of the threshed products between the two is carried over, it is possible to prevent problems such as the threshed products transferred in the casing being sent to the non-transfer action side of the casing, and the threshed products can be transferred in the casing well. Become.

[Brief description of drawings]

FIG. 1 is a front view of the inside of a casing.

FIG. 2 is an operation explanatory view showing an opened / closed state of the casing.

FIG. 3 is a perspective view of a second reducing cylinder.

FIG. 4 is a perspective view of a gear case.

FIG. 5 is a plan view of a discharge case.

FIG. 6 is a sectional view of the inner bottom of the casing showing the structure of a gear case positioning pin and a positioning hole.

FIG. 7 is a partial cross-sectional view showing the structure of a positioning projection and a positioning hole in the gear case.

FIG. 8 is a front view of the inside of a casing in which a pin case for positioning is provided in a gear case.

FIG. 9 is a sectional view of a thresher equipped with the present invention.

[Explanation of symbols]

 A Threshing machine 13 Horizontal spiral for reducing second material 13a Horizontal spiral shaft 18 Lifting cylinder 19 Vertical spiral 19a Vertical spiral shaft 20 Casing 20a Fixed side casing 20b Opening / closing side casing 27 Gear case for spiral driving 27a Ridge (guide body) 28 recess

Claims (1)

[Claims] 1. A thresher equipped with a spiral-type hoisting device for hoisting a threshing-processed product using a horizontal spiral and a vertical spiral, in which the outer side of the power transmission gear case of the both spirals is divided into two parts. In order to configure the transfer take-over part that is covered with a freely openable and closable casing, and the inside of the casing is bent into a corner shape of the threshing processed product, the transfer to the outer peripheral surface of the gear case is the inner side of the threshing processed product inside the casing. A spiral of a threshing machine, characterized in that a guide body for partitioning the acting side and the non-acting acting side which is the outer peripheral side of the corner to transfer and take over the threshing material between the vertical and horizontal spirals is projected toward the inner surface of the casing. Lifting device.