JP2003310039A - Lid structure for grain conveying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lid structure for a grain conveying device, having the scheme of closing a sweeping port by pulling a lid from a fixing piece side circumferentially and fixing it to ensure the sweeping port to be closed and grains not to be leaked even if the lid is intensely pushed outward due to grain pressure associated with grain cloggings inside a conveying cylinder. <P>SOLUTION: In the grain conveying device where a spiral 35 is set up revolvably inside the conveyance cylinder 33 provided with the sweeping port 37 to be closed with the openable lid 90, the lid structure has the following scheme. One side of the lid 90 is turnably supported on the conveying cylinder 33 on one end in the circumferential direction of the sweeping port 37, and the other side is circumferentially pulled and adjusted with the help of a tightening fixture 92 supported on a fixed piece 96 projected on the conveyance cylinder 33, thus closing the sweeping port 37. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid structure for a cleaning port opened in a transfer cylinder of a grain transfer device such as a combine.

[0002]

2. Description of the Related Art Conventionally, a combine for accommodating grains that have been threshed and sorted into a grain tank is provided by a grain transfer device including a vertical feed auger and a discharge auger in which a spiral body is rotatably installed in a cylindrical transfer cylinder. The grains in the grain tank are discharged and transferred to the outside of the machine, and the transfer cylinder is provided with a cleaning port having an openable / closable lid to perform maintenance work such as removal of grain clogging and cleaning. The lid installed on the cleaning port of the grain transfer device rotatably supports one side of an iron plate curved and formed by press working on the transfer tube at one end in the circumferential direction of the cleaning port via a hinge. At the same time, the other side has a lid structure in which it is fastened and fixed to the transfer cylinder by mounting bolts.

[0003]

In the structure for opening and closing the lid with the mounting bolt having the above-mentioned conventional structure, the fixing hole for inserting the mounting bolt formed in the lid has a long hole shape in consideration of machining error and assembly error. When the grain clogging occurs in the transfer cylinder, the lid is strongly pushed to the outside by the grain pressure, and the loose hole easily deforms due to the long hole. There is a drawback that a gap is generated between the grains and the grain leaks through the gap. Further, it is difficult to loosen the mounting bolt when the lid is deformed, and there is a problem that the operation of opening the lid and the work of closing the lid after the maintenance work are complicated.

[0004]

In order to solve the above-mentioned problems, the lid structure of the grain transfer device according to the present invention is, firstly, a transfer tube 33 having a cleaning port 37 which is closed by an openable / closable cover 90.
In a grain transfer device for rotatably providing a spiral body 35 therein to transfer grains, one side of the lid 90 is rotatably supported by the transfer cylinder 33 at one end in the circumferential direction of the cleaning port 37, The cleaning fixture 37 is characterized in that the cleaning fixture 37 is closed by pulling and adjusting the other side of the lid 90 in the circumferential direction by a fastening fixture 92 supported by a fixing piece 96 protruding from the transfer cylinder 33.

Secondly, the adjusting screw 9a is provided on the fixing piece 96 so as to be adjustable, and the adjusting screw 9a and the lid 90 are provided.
It is characterized in that the tightening fixture 92 is configured by connecting the parts in a detachable manner.

Thirdly, the cleaning port 37 is provided at the end of the transfer cylinder 33 of the vertical feed auger 6 for discharging and transferring the grains in the grain tank 3 by providing the discharge auger 8 in a position changeable manner. I am trying.

[0007]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 is a grain transfer device 2 according to the present invention.
The combine 1 comprises a traveling machine body 11 having a crawler type traveling device 10, a harvesting section 1a for harvesting planted grain culms, and a threshing section for threshing the harvested grain culms (not shown). ), A grain tank 3 for storing the selected grains, and a cabin-type control unit 4 and the like provided on the side of the threshing unit behind the reaping unit 1a with the same arrangement structure as the conventional one. is doing.

Further, a support portion 51 for removably supporting the sickle 5 for hand cutting the planted culm is provided on the lower frame 12 of the control unit 4 in front of the traveling body 11, and the sickle 5 is frequently used. It is installed close to the 1a side. At this time, the support portion 51 is
The lower frame 12 is provided with a storage portion 13 having a size for storing the sickle 5.
It is desirable that the sickle 5 that has been recessed in and stored therein is pressed and supported by the spring 52. In this case, the sickle 5 can be supported without protruding from the machine side and can be easily taken out.

The grain transfer device 2 is supported by a vertical feed auger 6 standing upright on the rear side of the grain tank 3 and an upper part of the vertical feed auger 6 so as to be vertically rotatable via a relay cylinder 7. Grain fed from a horizontal feed auger (not shown) which is composed of a discharge auger 8 and which is installed horizontally at the inner bottom of the grain tank 3 is vertically fed by a vertical feed auger 6 and relayed at the end of the vertical feed auger 6. The cylinder 7 is connected to the discharge auger 8, and the discharge auger 8 is discharged and transferred to the outside of the machine from a discharge port 8a opened at the end. Further, the relay cylinder portion 7 is provided with a lid structure 9 described later,
The maintenance work such as cleaning can be done easily.

In the relay cylinder portion 7 of the illustrated example, a connecting case 20 provided on the upper portion of the vertical feed auger 6 and a connecting case 21 provided on the base portion of the discharge auger 8 are made of cast metal and formed in a substantially symmetrical shape. The joint end surfaces 22 and 23 of both cases are connected to each other so as to be pivotally connected. The midway part of the support shaft 26 and the discharge auger 8 projecting from the side surface of the connecting case 20 are connected and supported by an inverted L-shaped connecting rod 27, and the middle part of the connecting rod 27 and the longitudinal feed auger 6 side are hydraulically connected. Lifting cylinder 29 that expands and contracts with a formula
It is connected and supported by.

With this structure, when the lifting cylinder 29 is expanded and contracted from the control section 4 side, the discharge auger 8 rotates up and down with the connecting case 20 side as a fulcrum. Further, the vertical feed auger 6 is rotatably supported around the vertical axis by a turning support mechanism (not shown) on the traveling machine body 11 side, and the discharge auger 8 is turned left and right and vertically positioned to remove the grain from the discharge port 8a. I try to discharge it. The connection cases 20 and 21 have metal parts 30 and 31 of the same shape inside, and the metal parts 30 and 30 facing each other axially support the spiral body 32 for relaying. The vertical feed auger 6 and the discharge auger 8 are cylindrical transfer tubes 33.
The spiral body 35 is inserted therein, one end of the spiral body 35 is axially supported by the metal portion 31, and the bevel gear 36 provided on the adjacent shaft ends is meshed with the spiral feed 35 to rotate and drive from the vertical feed auger 6 side. The grains inside are fed from the spiral body 35 of the vertical feed auger 6 through the spiral body 32 of the relay cylinder portion 7 to the spiral body 3 of the discharge auger 8.
5 to be discharged and transferred.

In such a grain transfer device 2, as shown in FIG.
As shown in FIG. 4, a cleaning port 37 is opened in a predetermined range in the circumferential direction on the peripheral wall which becomes the transfer cylinder 33 in which the spiral body 35 of the connection case 20 is housed. A lid 90 formed by the lid structure 9 of FIG. As a result, the grains can be smoothly discharged with the lid 90 closed, and maintenance work such as removal of grain clogging, cleaning, and inspection can be easily performed.

That is, the lid structure 9 shown in the same figure has a lid 90 formed in a curved shape so as to close the cleaning port 37 from the outside along a cylindrical peripheral wall, and one side of the lid 90 of the cleaning port 37. A mounting portion 91 that rotatably supports one end side, and a tightening that pulls and adjusts the other side of the lid 90 in the circumferential direction with the coupling case 20 while being supported by the coupling case 20 via the mounting portion 91. It is composed of a fixture 92.

The mounting portion 91 in the illustrated example is a hinge, and the lid 90 is fixed to the other side of the hinge in a state where one side of the hinge is fixed to the connecting case 20 by a mounting screw 93. Further, the tightening fixture 92 is provided so as to project in the radial direction of the peripheral wall and is fixed to the fixing hole 9
5 is provided with a fixing piece 96, an adjusting screw 9a that is tightly locked by screwing a nut 97 in a state where the fixing piece 96 is inserted and supported in the fixing hole 95, and is provided at an end portion of the adjusting screw 9a. Engaging piece 99 having a corresponding engaging hole 99 ′, and the engaging hole 9
It is configured by a locking piece 90 'and the like which is bent and formed at the end of the lid 90 so as to be removably inserted and locked in the 9'.

As a result, the adjusting screw 9a is inserted into the fixing hole 95 of the fixing piece 96 with the locking piece 90 'on the lid 90 side connected to the engaging hole 99' on the adjusting screw 9a side. By tightening the nut 97 screwed from the end of 9a, the lid 90 can be pulled in the circumferential direction of the connecting case 20 via the adjusting screw 9a, and this pulling force firmly fixes the entire surface of the lid 90 to the connecting case 20 side. Cleaning port 37 while pressed
Is closed by a lid 90.

The combine 1 equipped with the grain transfer device 2 configured as described above is provided with a lifting cylinder 2 from the control section 4 side.
After performing operations such as expansion and contraction of 9 and rotation of the swivel support mechanism to position the discharge auger 8 vertically and horizontally, the vertical feed auger 6, the relay cylinder portion 7 and the spiral bodies 35, 32 in the discharge auger 8, By rotating 35, the grain in the grain tank 3 can be discharged to a predetermined position outside the machine. At this time, the cleaning port 37 opened on the terminal end side of the vertical feed auger 6
Is closed by pulling and adjusting a lid 90 rotatably attached by a mounting portion 91 on one side in the circumferential direction of the transfer tube 33 to a fixing piece 96 protruding from the transfer tube 33 via a tightening fixture 92. Therefore, the transfer direction of the grain from the vertical feed auger 6 is changed and the transfer to the discharge auger 8 side is smoothly performed.

Further, the lid 90 is provided with an adjusting screw 9 from the side of the fixing piece 96.
Since it is pulled and fixed in the circumferential direction by a, the entire circumference of the cleaning port 37 is closed while being pressed substantially evenly by this pulling component force. Therefore, even if the lid 90 is strongly pressed from the inner side to the outer side by the grain pressure when the grain clogging occurs in the transfer cylinder 33, it is accompanied by the loosening allowance due to the long hole like the lid structure using the conventional mounting bolts. Since the lid itself is prevented from being deformed by a pressing force due to the pulling of the lid 90, no grain is leaked from between the transfer cylinder 33 and the lid 90 without causing a gap or deformation.

When the lid 90 is opened and the inner grain is scraped out to clear the grain clogging, if the nut 97 is simply turned in the loosening direction, the adjusting screw 9a is shown as shown by the dotted line in FIG.
While being supported by the fixing hole 95 of the fixing piece 96, the tension is loosened and becomes free. Therefore, the adjustment screw 9a and the lid 90 can be easily disengaged, and in this state, the lid 90 is attached to the mounting portion 91. It is possible to pivot largely with the side as a fulcrum, and the cleaning port 37 can be opened to easily perform maintenance work inside the transfer cylinder 33. At the end of the maintenance work, when the locking piece 90 ′ is locked to the engaging piece 99 with the lid 90 closed, and then the nut 97 is tightened, the lid 90 is pulled by the adjusting screw 9a to close the cleaning port 37. .

When the lid 90 is opened and closed as described above, the loosened adjusting screw 9a is held on the side of the fixing piece 96, so that the lid 90 can be opened and closed easily and there is no fear that the adjusting screw 9a is scattered. . Further, even if the lid 90 has a processing error and an assembly error or is slightly deformed, the lid 90 is pulled and adjusted in the circumferential direction by the fastening fixture 92 so that the lid 90 and the transfer cylinder 33 can be adjusted. There is a feature that the cleaning port 37 can be pressed and quickly closed so as to eliminate the gap.

In the illustrated example, the lid 90 is provided with a hinged mounting portion 91 on one side, but without being limited to this, for example, it is similar to that formed on the end portion of the adjusting screw 9a and the end portion of the lid 90. With the mounting structure in which the engagement hole 99 'and the locking piece 90' are engaged with each other, the lid 90 can be easily removed by releasing the engagement between the two while smoothing the opening and closing of the lid 90 with this portion as a fulcrum. The cleaning port 37 can be opened widely, and the lid 90 can be easily repaired or replaced due to deformation or the like.

Next, another embodiment of the lid structure shown in FIG. 5 will be described. Note that the description of the same configuration as that of the above-described embodiment will be omitted. The lid structure 9 rotatably supports one side of the lid 90 at one end in the circumferential direction of the cleaning port 37 opened in the connection case 20 by a mounting portion 91, and at the same time, covers the lid 9
An adjusting screw 9a is integrally extended to the other side of 0 and a nut 97 is screwed. Further, a long groove-shaped fixing hole 95 'is cut out at the end of the fixing piece 96 protruding from the transfer cylinder 33. As shown in the figure, the tightening fixture 92 is rotated by rotating the lid 90 in the open posture about the mounting portion 91, inserting the adjusting screw 9a into the fixing hole 95 ', and then tightening the nut 97. Since 90 can be easily pulled and adjusted in the circumferential direction, the cleaning port 37 can be reliably closed. Moreover, the nut 97 is not scattered when opening and closing.

The lid structure 9 constructed as described above is a terminal portion of the vertical feed auger 6 of the combine 1 where the grains are likely to be clogged. It may be provided at any position of the transfer cylinder 33, and can also be installed in the transfer cylinder of the grain transfer device of another form.

[0023]

Since the present invention constitutes the lid structure of the grain transfer device as described above, it has the following effects. In a grain transfer device for rotatably mounting a spiral in a transfer cylinder having a cleaning port closed by an openable lid, one side of the lid is transferred at one end in the circumferential direction of the cleaning port. The lid is fixed by rotatably supporting it on the cylinder, and by pulling and adjusting the other side of the lid in the circumferential direction with the tightening fixture supported on the fixing piece protruding from the transfer cylinder, and closing the cleaning port. It is fixed by pulling from one side in the circumferential direction and closing it while pressing the entire circumference of the cleaning port, so even if the lid is strongly pushed to the outside by the grain pressure due to the grain clogging in the transfer cylinder, the pulling force of the lid itself While preventing deformation, the cleaning port can be closed to prevent the grain from leaking.

Further, the adjusting screw is provided on the fixing piece so that the adjusting screw can be pulled and adjusted, and the adjusting screw and the lid are detachably connected to form a tightening fixing tool. In this state, the lid can be opened quickly, and maintenance work inside the transfer cylinder can be performed efficiently. Further, since the loosened adjusting screw is held on the fixed piece side, the lid can be easily opened and closed and the adjusting screw, nut and the like are not scattered.

Further, the cleaning auger is provided at the end of the transfer tube of the vertical feed auger for discharging and transferring the grains in the grain tank by providing the discharge auger with a changeable posture, so that the grains on the discharge auger side can be removed. The maintenance work of the vertical feed auger, which is likely to be clogged due to the change of the transfer, can be smoothly performed.

[Brief description of drawings]

FIG. 1 is a side view of a combine equipped with a lid structure of a grain transfer device according to the present invention.

FIG. 2 is a cross-sectional view showing a configuration of a main part of the grain transfer device of FIG.

3 is a plan sectional view showing a structure of a lid structure installed in the connection case of FIG.

FIG. 4 is a side view of FIG.

FIG. 5 is a perspective view showing another embodiment of the lid structure.

[Explanation of symbols]

1 combine 2 Grain transfer device 3 grain tank 6 Vertical feed auger 7 Relay tube 8 discharge auger 9 Lid structure 9a Adjustment screw 33 Transfer cylinder 35 spiral 37 Cleaning mouth 90 lid 90 'locking piece 91 Mounting part 92 Fixture 96 fixed piece 97 nuts 99 engagement piece 99 'engagement hole

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2B396 JA04 JC07 KC05 KE02 KE03                       KE04 KE05 LA03 LA23 LA24                       LC07 LE18 LR02 LR08 LR13                       ML07

Claims (3)

[Claims] 1. A spiral body (35) in a transfer tube (33) having a cleaning opening (37) closed by an openable / closable lid (90).
In a grain transfer device for rotatably providing a grain transfer device, one side of the lid (90) is rotatably supported by a transfer cylinder (33) at one end of the cleaning port (37) in the circumferential direction. , A grain that adjusts the other side of the lid (90) in the circumferential direction by a tightening fixture (92) supported by a fixing piece (96) protruding from the transfer cylinder (33) to close the cleaning opening (37). Grain transfer device lid structure. 2. A tightening fixture (9) in which a fixing piece (96) is provided with an adjusting screw (9a) for pulling and adjusting, and the adjusting screw (9a) and a lid (90) are detachably connected.
The lid structure of the grain transfer device according to claim 1, which constitutes 2). 3. A transfer pipe (33) of a vertical feed auger (6) for discharging and transferring grains in a grain tank (3), which is provided with a cleaning port (37) capable of changing a posture of a discharge auger (8). The lid structure for a grain transfer device according to claim 1, wherein the lid structure has an opening at a terminal end.