JPH0123251Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a support device for a counter shaft installed to transmit power to the rotating shaft of a dust suction/exhaust mechanism in a threshing machine or to the rotating part of an attached working machine, and is compared to a conventional support structure. To provide a device in which the support of the counter shaft is made extremely strong, and the suction cylinder of the dust suction/exhaust mechanism is also reinforced, thereby improving the overall durability.

The conventional counter shaft mechanism was supported by a bracket that was attached and supported only by the suction body of the dust suction and exhaust mechanism, but in this structure, the suction body itself was formed of a thin plate, and moreover, the threshing case was made of a thin plate. Since the suction cylinder is only supported in a cantilevered manner, the suction cylinder mounting part is easily cracked and damaged due to the vibration that occurs when the dust suction and exhaust mechanism operates, and the countershaft mechanism attached to the suction cylinder is susceptible to transmission. Since the load applied to the suction body is added to the above-mentioned difficulties, there is a disadvantage that the attachment part of the suction body itself and the counter shaft support part are damaged. If the power is transmitted to a working machine with large load fluctuations, the above-mentioned tendency for damage is greatly increased.

Therefore, the present invention has been developed by attaching and reinforcing a support plate in a spanning manner between the suction cylinder of the dust suction and exhaust mechanism and the side wall of the threshing case, and using this support plate to strengthen the counter shaft mechanism and belt tension. By supporting the idler, the overall structure is extremely simple, and yet the suction cylinder itself and the counter shaft are strongly supported.A specific example of the structure will be described in detail below.

FIG. 1 is a side view of essential parts of a thresher according to the present invention, and A in the figure indicates a threshing casing.

Inside this threshing case A, similarly to well-known threshing machines, a handling chamber is formed at the front of the upper half of the case to support the handling drum, and a sorting chamber is formed below the handling chamber. A Karachi fan 5, a first conveyor mechanism 6, a second conveyor mechanism 7, and a swinging sorting mechanism located above these are provided, and a dust removal chamber 8 communicating with the sorting chamber is provided at the rear of the handling chamber. Furthermore, a working machine C such as a straw disposal device is attached to the outside of the rear wall of the dust removal chamber.

A space 1 is formed in the outer side of the dust removal chamber 8, and is recessed appropriately from the protrusion 2 of the side wall a, which is a component of the threshing case A.
The suction cylinder b is attached.

The suction cylinder b is formed by molding a thin plate, and is fixed to the outer surface of the side wall of the dust evacuation chamber in the recessed part.
The body chamber communicates with the inside of the dust removal chamber 8, and the suction blade body 10 is supported by the rotation shaft 9 inside the body chamber.
is built-in.

and the outer surface of the suction cylinder b and the lateral wall a of the threshing case.
A support plate 3 is removably attached across the space between b and a between the two.
The attachment on the side of the suction cylinder is performed by fastening bolts 12, 12 to the reinforcing plate part 11 fixed to the suction cylinder. Mounting seat 1
This is done by fastening the bolts 14 to 3 with bolts 14, 14.

The support plate 3 itself consists of a flat outer support plate part 3a attached with the bolts 12 and 14, and an inner support plate part 3b integrally attached to the support plate part 3a with bolts 15 and 15. The support plate portions 3a and 3b are appropriately spaced apart in the inner and outer directions, and the bearing body 1 having a length that fits within the spaced apart space is provided.
6 is attached by fixing members 17 and 18.

The bearing body 16 has a bearing 19 in its shaft hole.
The counter shaft 4 is pivotally supported at 19 so that the shaft 4 can be freely rotated but prevented from moving in the axial direction.

Both shaft ends of the counter shaft 4 are connected to the bearing body 16.
are made to protrude from the end portions by appropriate dimensions,
The transmission wheels 20 and 21 are attached to the respective protruding ends so as to rotate together, and a boss portion 22 attached to the outer support plate 3a is provided between the outer transmission wheel 21 and the outer support plate 3a. arm 23 supported on
An idler 24 corresponding to the outer transmission wheel body 21 is pivotally supported at the tip of this arm 23 to form a counter shaft mechanism.

An endless transmission body 28 is wound around the inner transmission wheel body 20 in the counter shaft mechanism, which is also wound around each transmission wheel body 25, 26, 27 of the Karachi fan 5, the first conveyor mechanism 6, and the second conveyor mechanism 7. The outer transmission wheel 21 rotates with the operation of each mechanism to drive the counter shaft 4, and the outer transmission wheel 21 has a transmission wheel 29 for the rotating shaft of the dust suction/exhaust mechanism B, and a working machine C.
The transmission endless body 31 is wrapped around the drive wheel body 30 and tensioned by the idler 24, so that the transmission can be transmitted to the dust suction/exhaust mechanism B and the working machine C.

In the device configured in this way, the transmission wheel body 20,
The support plate 3, which supports the counter shaft 4 into which the counter shaft 21 is fitted and has the arm 23 having the idler 24 assembled thereon, is connected to the suction cylinder b and the lateral wall protrusion of the casing by means of bolts 12, 12, 14, 14. 2, and when the endless transmission bodies 28 and 31 are wound and tensioned around each transmission wheel body as desired, the dust suction/exhaust mechanism B and the working machine C can be driven together with the other operating shafts. The attachment and detachment work is extremely easy.

Moreover, when the support plate 3 is attached, this support plate reinforces and connects the suction cylinder b of the dust suction and exhaust mechanism to the threshing case A side, improving the vibration resistance of the suction cylinder b itself, and the counter shaft mechanism is It is reliably supported by the support plate 3 that is firmly supported by the barrel side and the threshing case side, and has the strength to withstand the operating load.

In this way, the present invention has two parts: the protrusion 2 on the side wall a, which is provided at the front and back, sandwiching the concave space formed on the side wall a of the threshing casing A, and the outer surface of the suction cylinder b of the dust suction and exhaust mechanism B. , the front and rear ends of the flat support plate 3 are fastened via plate materials, and a counter shaft 4 is provided at the center of the support plate 3 to which the belt can be transmitted to the suction cylinder b and the working machine C behind it. Since the structure is characterized by an idler 24 for tensioning the belt, the countershaft structure is simple, and it is particularly easy to assemble and remove, while reinforcing the weak suction cylinder. Furthermore, the countershaft and idler for tensioning the belt can be reliably and firmly supported, making it robust and free from damage even when transmission with large load fluctuations is performed. .

[Brief explanation of the drawing]

Fig. 1 is a side view of essential parts of a threshing machine according to an embodiment of the present invention, Fig. 2 is a partial side view showing an enlarged part of the threshing machine, and Fig. 3 is a cross-sectional view taken along the Y-Y line in Fig. 2. This is a perspective view. A...Threshing casing, a...Horizontal wall portion, B...Dust suction/exhaust mechanism, b...Suction cylinder, 1...Concave space, 2...
...Protrusion, 3...Support plate, 4...Counter shaft, C
...Work equipment, 24...Idler.

Claims (1)

[Scope of utility model registration request] A flat plate-shaped support is provided on the outer surface of the suction cylinder b of the dust suction and exhaust mechanism B and the protrusion 2 on the side wall a, which is provided at the front and back of the concave space 1 formed on the side wall a of the threshing case A. The front and rear ends of the plate 3 are fastened through plate materials, and the center part of the support plate 3 is equipped with a counter shaft 4 mechanism that can transmit the belt to the suction cylinder b and the working machine C behind it, and a belt tensioning mechanism. idler 2
4. A counter shaft support device for a threshing machine, characterized in that it is constructed by installing a.