JPH033161Y2 - - Google Patents

Description

[Detailed description of the invention] This invention transports waste straw sent out from the threshing section of a harvester, etc. in a sideways position, to the outside of the machine using an endless rotating body for upper drive transport and a lower clamping rail. A device for discharging waste straw is provided in an outwardly protruding position, and a first grain removal device provided at a laterally outer position of the threshing section is attached to the lower clamping rail.
This invention relates to a mobile threshing machine located below the base end of the grain.

In such a mobile threshing machine, the lower clamping rail of the straw removal device protrudes significantly outward during normal mobile threshing operation, so when traveling on the road or storing it, it is important to improve driving safety and reduce the space required. In order to achieve this, it is required that the lower clamping rail can be retracted, and conventionally, the lower clamping rail was swung downward around the base end into a retracted vertical position along the side wall of the fuselage. It was configured to be a switch.
However, if the first grain take-out device is installed outside the side wall of the machine and below the lower clamping rail, this first grain pick-up device will become an obstacle, and the lower clamping rail will be placed on the side wall of the machine. The lower clamping rail still protrudes outward because it cannot be swung to the normal storage vertical position. Therefore,
Although the space on the outside of the side wall of the machine and below the lower clamping rail is large enough for work, it is not recommended to install a grain removal device, etc. However, the grain removal device and the like had to be installed elsewhere, which resulted in a disadvantage of increasing the overall size.

In view of this, the present invention has been developed so that the lower clamping rail can be stored, while the grain removal device etc. can be installed in the space outside the side wall of the machine body and below the lower clamping rail. Have a purpose in what you are trying to do.

In the mobile threshing machine of the present invention, the lower clamping rail of the straw removal device is divided into a base end rail portion located on the upper side in the straw removal direction and a tip rail portion located on the lower side. The proximal end layer is divided into two parts.
The lever portion is configured to be bendable and swingable in the vertical direction around the horizontal axis provided at the base end of the attachment, and
The distal end rail portion is slidable in the longitudinal direction of the rail with respect to the proximal rail portion, and vertically around the horizontal axis at the distal end position of the proximal rail portion. The distal end rail portion is configured to be bendable and swingable, and the proximal rail portion is slid to one side in a posture in which the distal end rail portion is positioned linearly or almost linearly with respect to the proximal rail portion. engages the engaged portion on the rail portion side to hold the tip rail portion in the above-mentioned linear posture;
Further, the distal end rail portion is provided with an engaging portion that releases the engagement and allows the distal end rail portion to swing downward by sliding to the other side.

According to this configuration, even if the first grain take-out device, etc. is installed below the lower clamping rail on the outside of the side wall of the machine, the base end rail portion is in contact with the first grain take-out device, etc. At the same time, the distal end rail section is swung downwards and bent relative to the proximal end rail section that has swung downwards until it reaches the outer surface of the grain removal device, etc. By setting the lower clamping rail in a vertical position along the grain removal device, the lower clamping rail can be stored in a state in which it projects slightly outward with respect to the grain removal device. The engaging part and the engaged part are engaged and the tip ray is
If the rail part and the proximal rail part are in a straight position,
The work posture is such that the waste straw is discharged to the outside of the machine by cooperation with the waste straw carrying device. Further, at this time, since the distal end rail portion and the proximal rail portion are held in a straight position, it is sufficient to support the lower clamping rail at only one point in order to support it in the working position. Therefore, the lower clamping rail, which protrudes outward to a large extent for work, can be retracted so that the amount of outward protrusion is reduced during non-work such as on-road driving or storage. Despite its split structure, support for the lower clamping rail during operation can be realized at a minimum of one location. As a result, the overall size can be made more compact. In other words, even if the grain removal device and the like are provided below the lower clamping rail on the outside of the side wall of the machine, the lower clamping rail can be stored compactly when not in operation. Furthermore, by sliding the distal end rail section into and out of engagement with the proximal rail section, it is possible to switch between a state in which downward swinging of the distal end rail section with respect to the proximal rail section is prevented and a state in which it is permitted. Therefore, compared to the case where the distal end rail portion is swingably fixed to the proximal end rail portion using bolts or the like, for example, there is an advantage in terms of operation that the state switching operation can be performed easily and quickly.

Hereinafter, an embodiment of the present invention will be described based on the drawings. A threshing unit 3 is installed in the front part of a traveling chassis 2 equipped with a crawler traveling device 1, and its upper threshing feed chain 3A and lower threshing It is mounted so that the direction in which the threshed culm is conveyed by the clamping rails 3B is transverse to the direction of movement of the machine body, and a driving device 4, a control device 5, and a grain bagging section 6 are mounted on the rear portion of the traveling chassis 2. is attached to the lateral outer side of the threshing section 3,
A first grain take-out device 7 using a screw conveyor is provided to take out the first grain from the lower part of the threshing section 3 and convey it to the upper part of the bagging section 6, and the threshing feed chain 3A and the threshing clamping lane are provided. le 3
A waste straw carrying-out device 8 for transporting and discharging the waste straw sent out from the threshing section 3 in a sideways posture via the threshing section 3 to the outside of the machine body is installed at the top of the first grain removal device 7 and arranged outwardly. The harvester (an example of a mobile threshing machine; there is also a combine harvester) installed in a protruding position, and the straw removal device 8 is constructed as follows.

Upper drive belt 9 with protrusions and lower clamping rail 1
0 and conveys waste straw by pinching it,
The drive belt 9 has a horizontal axis a ₁ located at the start end of the conveyance.
It is configured so that it can be switched to a storage position located above the threshing section 3 by upward swinging around the threshing section 3. The lower clamping rail 10 has a horizontal axis _a2 located at the base end of attachment to the threshing clamping rail 3B.
Base end rail portion 10A that can swing downward around
and a distal end rail portion 10B which is slidable in the longitudinal direction of the rail with respect to the proximal rail portion 10A and is swingable downward about an axis _a3 located at the distal end of the proximal rail portion 10A. The base end rail portion 10A has a pair of spaced apart plate members 11, 11 fixedly connected via a U-shaped plate member 12 near their distal ends. The tip rail portion 10B is configured as follows.
A pair of plate members 13, 13 located apart from each other
are fixedly connected to each other via U-shaped plate members 14 and 14' at two locations spaced apart in the longitudinal direction.

The means for slidably and swingably attaching the distal end rail portion 10B to the proximal rail portion 10A is a pivot pin 15 on the proximal rail portion 10A.
15, and the tip rail portion 10B
This is a means for forming the pin insertion holes 16, 16 into long holes extending in the longitudinal direction of the rail.

The means for fixing the distal end rail portion 10B in a position in which the distal end rail portion 10B is located linearly with respect to the base end rail portion 10A is such that the distal end rail portion 10B is fixed in a position in which the distal end rail portion 10B is in the linear position. - When the rail slides toward the proximal end side, it engages a pair of engaged parts 17, 17 formed on the proximal rail portion 10B side and holds the distal end rail portion 10B in the linear posture. , and release the engagement by sliding toward the tip side to release the tip rail.
This is means for integrally providing a pair of engaging portions 18, 18 that allow downward swinging of the lever portion 10B.

Engaged portion 17 on the base end rail portion 10A side,
10 pairs are the opposing plate portions 12 of the U-shaped plate member 12.
12a and plate members 11, 11, and is oriented along the longitudinal direction of the rail.

In the figure, reference numeral 19 indicates the tip rail for supporting the downward swinging of the entire rail 10 in a state where both the rail portions 10A and 10B are in a straight line position.
One U-shaped plate member 14 in the square portion 10B
and a bracket 20 which is attached to a fixed part so as to be able to swing vertically.
It is constructed so that it can be pivotally connected and detached by inserting and extracting it, and is attached to the bracket 20 so as to be slidable in its longitudinal direction in a non-removable manner. 22 holds the support rod 19 on a rail.
23 is a spring that slides and biases the wheel 10 in the direction of lifting it, and 23 is an inlet plate of the thresher 3.
This is a platform for supplying the threshed culm onto the tray 3C. This supply stand 23 is removably attached to the tip of the inlet plate 3C at the lower side in the supply direction, and is attached via a pair of front and rear protruding members 24, 24 at the intermediate part in the supply direction. in a state where it is supported and held in a horizontal supply position and separated from the inlet plate 3C,
The threshing section 3 swings around the connecting portions with the splint materials 24, 24 so as to overlap the splint materials 24, 24, and the threshing portion 3 swings around the portion where the splint materials 24, 24 are attached to the fixing portion. By standing up and swinging so as to overlap the threshing section 3, it is stored in a folded position along the threshing section 3.

The means for attaching the supply stand 23 to the inlet plate 3C is to form insertion portions 26, 26' for the attachment shaft 25 by curling the front and rear portions of the inlet plate 23, respectively. ,
A hook portion 27 is formed at the front and rear intermediate portions of the supply table 23, which can be freely engaged and detached in the supply direction from the intermediate portion of the shaft 25, which is inserted between the insertion portions 26 and 26' by curling. and when the shaft 25 is inserted into one end of the shaft 25 in a predetermined state such that the other end thereof is inserted over its entire length into the insertion portion 26 located on the opposite side to the insertion side, It is inserted into a hole 28 formed in the supply table 23 to prevent movement of the supply table 23 in the supply direction, that is,
The hook portion 27 is prevented from coming off the shaft 25, and the shaft 2
This is means for integrally providing a pin 29 that is pulled out from the hole 28 when the pin 5 is moved to one end side. The insertion length L ₁ of the pin 29 into the hole 28 is
The insertion length L ₂ of the end portion of the shaft 25 into the opposite side insertion portion 26 is configured to be smaller than the insertion length L 2 of the end portion of the shaft 25 when the shaft 25 is inserted in the predetermined state. In other words, the pin 29 is
Even when the shaft 25 is moved toward one end in order to be extracted from the shaft 25, the other end of the shaft 25 is inserted into the opposite insertion portion 26. and,
The pin 29 is inserted into the predetermined state when the shaft 25 is inserted into the predetermined state after the supply table 23 is folded and stored.
It is configured to be able to engage with the outer surface of the supply table 23 in the folded storage position, and this engagement holds the supply table 23 and the tension members 24, 24 in the folded storage position.

[Brief explanation of drawings]

Figure 1 is a side view, Figure 2 is a plan view, Figure 3 is a rear view of the main parts showing the straw removal device and supply stand in an extended state, and Figure 4 is the straw removal device and supply stand. FIG. 5 is a rear view of the main part showing the folded state, FIG. 5 is a perspective view of the main part, and FIGS. 6 and 7 are perspective views showing the expansion and folding action of the supply stand. 3... Threshing section, 7... First grain removal device, 9
... Endless rotating body, 10 ... Lower clamping rail, 8 ...
... Straw removal device, 10A ... Base end rail part,
10B...Tip rail part, 17...Engaged part,
18...Engagement part.

Claims (1)

[Scope of utility model registration request] A waste straw carrying device 8 is projected outward, which transports and discharges waste straw sent out from the threshing section 3 in a sideways posture by means of an endless rotary body 9 for upper drive conveyance and a lower clamping rail 10 to the outside of the machine body. In the movable threshing machine, the first grain take-out device 7, which is disposed at a laterally outer position of the threshing section 3, is disposed at a position below the proximal end of the lower clamping rail 10. Lower clamping rail 10 of straw removal device 8
The base end rail portion 10A is located on the upper side in the direction of conveying the waste straw, and the tip rail portion 1 is located on the lower side.
0B, and the base end rail portion 1
0A is configured to be able to bend and swing in the vertical direction around the horizontal axis _a2 provided at the base end of the installation, and
The distal end rail portion 10B is slidable in the longitudinal direction of the rail with respect to the proximal rail portion 10A, and the horizontal axis a ₃ at the distal end position of the proximal rail portion 10A. The distal end rail portion 10B is configured to be freely bent and swingable in the vertical direction around the base end rail portion 10A, and furthermore, the distal end rail portion 10B is configured to be able to bend and swing freely in the vertical direction. By sliding,
It engages with the engaged portion 17 on the base end rail portion 10A side to hold the distal end rail portion 10B in the above-mentioned linear posture, and releases the engagement by sliding to the other side. A mobile threshing machine characterized in that an engaging portion 18 is attached to the tip rail portion 10B to allow the tip rail portion 10B to swing downward.