JPH039625Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention swings between a retired position and a transverse position with respect to a path in which threshed straw is dropped from a conveying device to a shredding device in a horizontal position. The present invention relates to a straw straw route switching device for a threshing device, in which a switchable guide is provided at an angle so that the straw received at the transverse position thereof slides toward a rear straw processing device.

[Prior art]

In constructing the straw removal route switching device, as shown in FIG. 4, from the viewpoint of ensuring reliable route switching, the free end of the guide 7 in the transverse position is connected to the conveyance removal device, which is a member disposed opposite to the free end of the guide 7. It was configured to contact the guide 9 for preventing straw sagging over the entire width, and to sealingly block the falling path B of the waste straw to the shredding device 5.

[Problem that the invention attempts to solve]

In order to adjust the condition and amount of fertilizer in which waste straw is shredded and returned to the field as fertilizer for the soil,
When the guide 7 is switched from the retiring position to the crossing position during work, the waste straw is discharged as long straw without being shredded, and the long straw is collected later. Because a certain waste straw is held between the guide 7 and the guide 9 for preventing drooping, the sandwiched waste straw is transferred to the upper surface of the guide 7 of the waste straw sent from the conveying device 4 after switching. There was a problem that this was a hindrance to the delivery process and even led to transportation troubles such as clogging of the conveyor waste straw.

The present invention achieves
To reliably prevent conveyance troubles caused by waste straw being caught in guides.

[Means to solve the problem]

The free end of the guide at the transverse position and the opposite end of the member located opposite to the free end of the guide are arranged so as to be lined up on an imaginary vertical line or slightly overlapped in the longitudinal direction of the aircraft, and When the guide is switched from the retracted position to the transverse position after being separated from each other for an appropriate amount of time in the direction, the waste straw in the middle of falling is caught between the free edge of the guide and the edge of the member located opposite to the guide. This is because an opening is formed to prevent this.

[Effect]

Since the free end of the guide and the end of the member facing the guide are spaced apart in the vertical direction, the waste straw is held between the guide and the end of the member facing the guide. There is no such thing,
The material passes between the free end of the guide and the end of the member facing the guide and is scraped into the shredding device.

Since the free end of the guide and the end of the member facing the guide member almost overlap each other in the front-rear direction, for example, the free end of the guide and the end of the member facing the guide When separating the waste straw in the front and back direction so that the waste straw is not pinched, after switching the guide to the transverse position, the waste straw that falls near the opening may accidentally pass through the vertical opening and reach the shredding device. There is no chance of it falling and accumulating.

〔effect〕

Since the waste straw is not pinched between the ends of the guide and the member located opposite to the guide, it is possible to prevent the trouble of conveying waste straw to the rear processing device due to the waste straw being caught and held.
It has now become possible to improve the straw removal route switching performance by a simple improvement in which the member is vertically shifted relative to the member facing the guide.

〔Example〕

At the end of the threshing conveyance direction of the threshing device 1 installed in a combine harvester, harvester, etc., the threshing waste straw from the conveyance end of the threshing conveyance device 2 disposed on one side of the threshing device 1 is removed in cooperation with the clamping rails 3. A waste straw conveying device 4 is provided which transports straw obliquely in plan view toward the left and right center of the machine, and a large number of disk-shaped rotary blades 5b are arranged in parallel on a pair of parallel horizontal rotating shafts 5a that span substantially the entire width of the threshing device 1 on the left and right sides. A shredding device 5 is provided below the conveyance end of the waste straw conveying device 4, and a waste straw scraping packer 6a and a
The binding part 6A consisting of the binding needle 6b etc. is placed downward, and the knot building 6c and the knot holder 6
d, etc. above, and a straw discharge opening opening/closing door 6e, which also serves as a sensor for detecting the focused straw straw pressure for setting the operation timing of these devices, is provided at the end of the path. A binding device 6, which is a processing device, is arranged further rearward from the transport end of the waste straw transport device 4.

Then, a horizontal axis Q 1 on the lower end side is set at a position where the straw is retired backwards and a position where it crosses the path B in which the straw is dropped from the transport end of the waste straw conveying device 4 to the shredding device ₅ below in a sideways posture. The plate-shaped guide 7, which can swing freely around the guide 7, is arranged so that its attitude in a side view at its transverse position is an inclined attitude downward downward so as to slide and guide the collected waste straw toward the bundling device 6. In addition, it is provided over the entire width of the shredding device 5, and when the guide 7 is in the transverse position, the waste straw from the waste straw conveying device 4 is introduced into the bundling path A in cooperation with the inclined guide of the guide 7. Endless band-shaped rotatable locking and conveying devices 8, 8 are provided so as to be able to swing integrally with the guide 7 around the horizontal axis _Q2 between the working position and the non-working position. The processing mode is configured so that it can be switched between a shredding processing mode and a bundling discharging processing mode by switching the straw removal route using the guide 7.

A plate-shaped guide 9 for preventing the tip side of the ear and the end side of the stalk of the waste straw transported by the waste straw transport device 4 from hanging down to the location where the shredding device 5 is installed.
is disposed so as to face the free end of the path switching guide 7 in the transverse position over its entire width, and is connected to extend rearward from the casing of the threshing device 1 to prevent it from sagging. Second part 9 of guide 9
A around the horizontal axis Q ₃ between an almost horizontal position where the rear end edge is in the transverse position and facing the free end edge of the path switching guide 7, and a descending position where the rear end edge is almost downward. It is swingably connected to the front half 9B of the guide 9, and the route switching guide 7
and the movable rear half 9A of the guide 9 for preventing drooping.As the route switching guide 7 is swung to the retired position, the movable rear half 9A is moved in conjunction with the lowering position, and The link mechanism 10 is configured so that as the guide 7 is swung to the transverse position, the movable rear half 9A is oscillated to a horizontal position.
The guide 7 for switching the path and the movable rear half 9A of the guide 9 for preventing drooping are both swung from the straw dropping path B to the retirement side in the waste straw shredding processing state. By this,
The structure is such that waste straw can be smoothly dropped and supplied to the shredding device 5 from a wide opening space.

Furthermore, the route switching guide 7 and the drooping prevention guide 9 are arranged so that the route switching guide 7 is in the cross position and the drooping prevention guide 9 is in the horizontal position.
and the rear end edge of the movable rear half 9A of the guide 9 for preventing drooping are located directly below the rear end of the waste straw holding rail 3 or slightly forward of the rear end,
The guides 7 are provided at appropriate intervals in the vertical direction so that they overlap slightly in the front-rear direction over the entire width and form openings C in the front-rear direction. 7 is in the cross position, the route is switched by ensuring that the waste straw from the end of the waste straw rail 3 is received by the upper surface of the switching guide 7 while being thrown backward by the conveying inertia of the waste straw conveying device 4. However, when the switching guide 7 is switched from the retracted position to the crossing position, the waste straw that is falling to the shredding device 5 side is caught and held between the switching guide 7 and the sagging prevention guide 9. This is prevented by allowing the waste straw to fall through the gap-like opening C,
It is configured to avoid troubles such as clogging of the waste straw caused by the pinching and holding of the waste straw to the bundling device 6 side.

Incidentally, in forming the opening C for allowing the waste straw to fall, the opening C was formed between the guide 9 for preventing drooping as a member located opposite to the guide 7 for route switching, but it is necessary to prevent the straw from drooping. In the case of a type of threshing device not equipped with a guide 9, an opening C is formed between the free end of the path switching guide 7 in the transverse position and another object such as a casing or frame located opposite thereto. It is good if there is.

In addition, although the opening C was formed in a state in which the free end edge of the route switching guide 7 and the rear end edge of the movable rear half 9A of the guide 9 for preventing drooping were slightly lapped in the front and rear direction, the The opening C may be formed with the free end edge of the switching guide 7 and the rear end edge of the hanging prevention guide 9 located on a virtual vertical line.

Furthermore, although the bundling device 6 was used as a waste straw processing device behind the shredding device 5, a waste straw converging dropper was used instead of the bundling device to release the waste straw in fixed amounts without bundling it. Also good.

[Brief explanation of the drawing]

The drawings show an embodiment of the straw removal path switching device for a threshing device according to the present invention, in which FIG. 1 is an enlarged side view of the main part, FIG. 2 is a side view showing the rear part of the threshing device, and FIG.
The figure is a plan view of the same, and FIG. 4 is a side view of main parts showing the conventional structure. 4... Conveying device, 5... Shredding device, 6... Waste straw processing device, 7... Route switching guide, 9... Opposing member, B... Falling route, C... Opening.

Claims (1)

[Scope of utility model registration request] A guide 7 that can be freely switched between a retired position and a transverse position with respect to a path B for dropping threshed waste straw from the conveying device 4 to the shredding device 5 in a sideways posture,
In the straw removal route switching device of the threshing device, which is installed to be inclined so that the waste straw received at the crossing position slides toward the waste straw processing device 6 at the rear, the free end of the guide 7 at the crossing position and , the free end of the guide 7 and the opposite end of the member 9 located opposite to each other are provided so as to be lined up on an imaginary vertical line or slightly overlapped in the longitudinal direction of the fuselage, and are separated by an appropriate distance in the vertical direction, When the guide 7 is switched from the retracted position to the transverse position, the waste straw that is falling is between the free end edge of the guide 7 and the guide 7.
A straw removal path switching device for a threshing device, characterized in that an opening C is formed to prevent the straw from being caught between the edge of the member 9 and the end edge of the member 9 located opposite to the opening C.