JP3234123B2 - Combine pretreatment support frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pre-processing support frame for supporting a pre-processing section of a combine.

[0002]

2. Description of the Related Art Conventionally, a pre-processing frame provided in a pre-processing section of a combine has a horizontal shaft holding cylinder rotatably supported at a front end of a fuselage, a horizontal transmission case provided at a lower front portion thereof, and A pre-processing support frame or the like that connects the transmission case and the horizontal shaft holding cylinder, and the like. It is a mechanism that swings up and down. And the pre-processing unit equipped with the pre-processing support frame cuts the grain stalks, transfers the cut stalks from the scraping transfer device to the handling depth transfer device, and further transports the transferred grain stalks to the depth. There is known one that functions so as to be passed from a transport device to a feed chain of a threshing unit.

[0003]

However, since the pre-processing support frame is located in the grain trajectory trajectory in the above-mentioned transport process, the stock of the transported grain culm abuts on the pre-processing support frame, and the transport attitude is disturbed. There was a drawback that culms and spills occurred. In addition, since the pre-processing support frame is located in front of the traveling device, if the traveling device is provided at a position where the front end does not contact the pre-processing support frame, the traveling device is located closer to the rear as viewed from the entire combine. In addition, there is a problem that the weight balance becomes heavy at the front and the operation balance is deteriorated, and the overall length is increased and the operability is deteriorated.

[0004]

A pre-processing support frame according to the present invention for solving the above-mentioned problems comprises a body 3 supported by a traveling device 1 and a pre-processing section 6 disposed in front of the body 1.
A pre-processing support frame 27 for connecting the pre-processing section 6 to the machine body 3 so as to be able to swing up and down, and the pre-processing section 6
The driving force with and a transmission shaft 36 for transmitting the pre-processing unit 6 side from the fuselage 3 side, the combine the transmission shaft 36 is inserted through the pre-treatment support frame 27, the bush
The stem of the cereal stem that is removed and sent backwards
The first feature is that a portion corresponding to the stock transport path A of the pre-processing support frame 27, which intersects in plan and side views, is formed in a concave shape so as not to come into contact with the arm 27 .

[0005] Further, an airframe 3 supported by the traveling device 1 and a pre-processing section 6 disposed in front of the airframe 1 are provided, and the pre-processing section 6 is connected to the airframe 3 side so as to be vertically swingable. A pre-processing support frame 27 is provided, and a transmission shaft 36 for transmitting the driving force of the pre-processing unit 6 from the machine body 3 to the pre-processing unit 6 is provided, and the transmission shaft 36 is inserted into the pre-processing support frame 27. A second feature of the present combiner is that a portion of the pretreatment support frame 27 facing the front end of the traveling device 1 is formed in a concave shape.

[0006]

The portion corresponding to the stock transfer path of the pre-processing support frame 27 is formed in a concave shape, and the stock of the grain culm conveyed by the pre-processing section 6 is cut into the pre-processing support frame 2.
7 is conveyed to the rear of the body 3 without contacting the same. At this time, the strength of the pretreatment support frame 27 is sufficiently maintained because of the partial concave shape, and does not affect the rotational driving of the inserted transmission shaft 36.

The traveling device 1 of the pretreatment support frame 27
Is formed in a concave shape, and the traveling device 1 is disposed in front of the body 3 by an amount corresponding to the concave portion. At this time, the strength of the pre-processing support frame 27 is sufficiently maintained because of the partial concave shape, and the transmission shaft 36 inserted therethrough is secured.
It does not affect the rotational drive of the motor.

[0008]

1 and 2 show a side view and a plan view of a combine to which the present invention is applied. A fuselage 3 is provided on a fuselage frame 2 supported by a traveling device 1. A driver's seat 4 is provided above the fuselage 3, a preprocessing unit 6 is provided in front of the vehicle, and a feed chain 5 is provided in a rear portion of the vehicle. Threshing units 7 are provided respectively. The pre-processing unit 6 has a pre-processing frame 8 having a configuration described below, and
It is composed of a raising device 11, a cutting blade 12, a star wheel 13, a stalk scraping belt 14, a scraping carrier 16, a handling depth carrier 17, and the like.

[0009] The scraping transporting body 16 has a substantially V-shape in plan view and is constituted by left and right scraping transporting portions 18 and 19 in which the vertices of the V-shape meet.
Reference numerals 8 and 19 have a structure in which stem transporters 18b and 19b are provided above the stock transport chains 18a and 19a, respectively. At this time, the stock raking chains 18a, 19
"a" also serves to drive the star wheel 13 and the stem scraping belt 14. Further, the right-side scraping transport section 19 is also provided with an ear-side transport body 19c above the stem transport body 19b.
Further, the handling depth transfer body 17 is provided from the vicinity of the above-mentioned confluence section toward the front end of the feed chain 5 at the rear, and is provided opposite to the stock transfer section 17a and the stock transfer section 17a. It comprises a holding rail 21 protruding in 16 directions and a spike-side transfer section 17b provided above the stock transfer section 17a. That is, the scraping transport body 16 and the handling depth transport body 17
This constitutes a substantially Y-shaped grain culm transport path in plan view, and the confluence section is a transfer section between the scraping transport body 16 and the handling depth transport body 17.

With the above structure, the combine can be driven by the traveling device 1
When the body 3 travels, the culm is first vegetated by the divider 9, and the falling culm is raised by the raising device 11. Then, the grain stalk is cut by the cutting blade 12, and the cut grain stalk is scraped by the star wheel 13 and the stem portion scraping belt 14, and the scraped grain stalk forms a scraping carrier 16, which is a spike-side transport. Body 19c and stem carrier 1
8b, 19b, the stems and stems above the stock are held and inherited by the stock transport chains 18a, 19a, respectively, and sent rearward while standing up and merged.

[0011] Then, the combined grain culm has its stock origin from the back of the stock origin transport chains 18a, 19a to the stock origin transport unit 1a.
7a and the front end of the holding rail 21, the spike-side carrier 1
8b, 19b and the rear end portion of the spike-side transfer body 19c are passed on to the spike-side transfer section 23, and are transferred to the handling depth transfer body 17. The grain culm inherited by the handling depth conveying body 17 is conveyed with the ear tip inclined toward the center of the machine body 3, is inherited by the feed chain 5 in a substantially laid state, and is sent to the threshing unit 7.

Next, the structure of the preprocessing frame 8 of the preprocessing unit 6 will be described. The pre-processing frame 8 includes a horizontal axis holding cylinder 26 rotatably supported by the vertical frame 2 a in front of the body frame 2, and is fixed to the horizontal axis holding cylinder 26, and has a tip portion deflected rightward in plan view. A pre-processing support frame 27 that is inclined downward and that is hanging forward and downward in a side view while approaching the transmission case 25, and is connected to a lower end of the pre-processing support frame 27 and has substantially the entire width of the pre-processing portion 6. And a cutting frame 29 protruding forward from the transmission case 28. The horizontal shaft holding cylinder 26 and the transmission case 28 are also connected by an auxiliary frame 31.

The pre-processing unit 6 is configured by supporting the above-described pre-processing unit 6 on the pre-processing frame 8 having the above structure. By raising and lowering the pre-processing support frame 27 by the hydraulic cylinder 32 with the structure described above, the pre-processing unit 6 is vertically swung with respect to the machine body 3 around the horizontal shaft holding cylinder 26 as a fulcrum. Note that the pre-processing support frame 27 is structurally located between the front end of the traveling device 1 and each part of the pre-processing unit 6, and the pre-processing support frame 27 is particularly located at a position closest to the front end of the traveling device 1.

The horizontal shaft holding cylinder 26 has an input pulley 33
The horizontal input shaft 34 having
7 is the first transmission shaft 36, and the transmission case 28 is the second transmission shaft 3
7 and the input shaft 34 and the first transmission shaft 3
6. Further, the first transmission shaft 36 and the second transmission shaft 37 are respectively connected by bevel gears. The power transmitted from the transmission case 25 to the input shaft 34 via the pulley 33 by the above structure is transmitted to the second transmission shaft 37 via the first transmission shaft 36.
And transmitted as a driving force from the second transmission shaft 37 to each section of the pre-processing section 6.

Here, the shape of the pre-processing support frame 27 will be described in detail. As described above, the grain stalks cut by the cutting blade 12 are passed from the raking carrier 16 to the handling depth carrier 17, and at this time, the movement locus of the unclamped portion below the grain stem base Becomes like A in side view. Then, of the intersection of the preprocessing support frame 27 and the movement locus A, a portion corresponding to a transfer portion (a vertex of a V-shape) from the raking carrier 16 to the handling depth carrier 17 is formed in a concave shape. ing.

A portion corresponding to the front end of the traveling device 1 when the pre-processing section 6 is pivoted to the lowest position is also formed in a concave shape, and the distance between the traveling device 1 and the pre-processing support frame 27 is R.
It has become. In other words, the traveling device 1 has the body 3 corresponding to the concave portion of the pre-processing support frame 27 as compared with the conventional combine.
Is provided in front of the vehicle. The pre-processing support frame 27 maintains the strength required for supporting each part of the pre-processing section 6 due to its thickness T. Therefore, the thickness cannot be reduced to T or less over the entire length, so that only necessary portions are formed in a concave shape. Further, the concave portion is a depression that does not affect the first transmission shaft 36 contained therein.

With the above structure, when the pre-processing unit 6 is swung up and down, the pre-processing support frame 27 and the traveling device 1 do not come close to or come into contact with each other. Even if it is conveyed to the front end part of the conveyance body 17, as shown in FIG. 3, the root of a grain culm is inherited from the scraping conveyance body 16 to the handling depth conveyance body 17 without contacting the pretreatment support frame 27. To go. In other words, after the stalks have been cut, they collide with the pretreatment support frame 27 and are conveyed to the feed chain 5 without disturbing the posture, and the pretreatment support frame 27 hinders the operation and action of the pretreatment unit 6. Disappears.

Further, since the traveling device 1 is located forward of the conventional combine, the overall length of the combine is shortened, and at the same time, the vehicle body 3 is supported by the traveling device 1 at a position where the weight balance between the front and rear of the entire combine is better. You. For this reason, since the posture of the combine is stabilized, the operation is stabilized and the small turning is effective, so that the working efficiency is improved.

Next, the lubricating structure of the raising device 11 provided in the pretreatment section 6 will be described. As shown in FIG. 4, a roller 43 is provided in the raising case 41 of the raising device 11 to raise the raising claw 42 that is lying down in the raising case 41.
Is rotated by the chain 44 which is wound around. Further, the front portion of the roller 43 is concavely recessed to form an oil sump 46, and the oil sump 46
A lubrication hole 45 that is inserted through the chain 44 is provided below the oil reservoir.

A cover 47 for covering the oil reservoir 46 when the raising case 41a is attached to the raising device 11 is provided on the rear surface of the raising case 41a on the front side. At this time, the cover 47 is attached to the peripheral wall 43 of the roller 43.
L is inside from a. On the other hand, a lubricating oil supply unit 50 that supplies lubricating oil to the oil reservoir 46 is provided from above the cover 47.

With the above structure, the lubricating oil supplied from the lubricating oil supply unit 50 to the oil reservoir 46 is supplied to the chain 44 from the inside of the roller 43 via the lubrication hole 45. At this time, since dust and the like do not enter the oil reservoir 46 due to the cover 47, clogging of the lubrication hole 47 and suction of the lubricating oil by the dust and the like are eliminated, and reliable lubrication of the chain 44 can be performed. The lubrication method is the chain 44
Is a method of supplying lubricating oil to the chain 44 from inside the roller 43, unlike the method of directly spraying lubricating oil to the
Lubricating oil does not splash outside.

FIG. 5 shows another embodiment of the above lubrication method. In this embodiment, the cover 47 is formed in a shape having a U-shaped cross section, is mounted so as to have a gap from the peripheral wall 43a of the roller 43 by a distance d, and the gap is filled with a seal member 48. Other structures and lubrication methods are the same as those in FIG. By the above-mentioned mechanism, invasion of dust and the like into the oil sump portion 46 is prevented by the cover 47 and the sealing member 4.
8 prevents clogging of the lubrication hole 47 due to dust and the like, absorption of lubricating oil, and the like.
4 can be reliably lubricated. The lubrication method shown in FIG. 4 and FIG.
Alternatively, the present invention may be applied to a carrier having claws such as b, 19b, the spike-side transport 19c, and the spike-side transport 17b of the handling depth transport 17.

In FIG. 5, an oil holding member 49 such as a sponge for oil sump is provided on the bottom surface of the oil sump 46. Therefore, the lubricating oil accumulated in the oil holding member 49 is injected into the chain 44 from the oil holding member 49 through the oil injection hole 45 by centrifugal force when the roller 43 rotates. According to this lubrication method, a large amount of lubricating oil does not flow into the chain 44 at one time, so that the lubricating oil is prevented from scattering outside. Roller 4 directly with an oil bottle
Even when lubricating oil is applied to the lubrication oil 4, the lubricating operation can be performed easily and in a short time because the lubricating oil is reliably injected into the chain 44 when the roller 44 rotates by merely lubricating the oil holding member 49. The oil holding member 49 may be applied to the embodiment shown in FIG.

The structure and operation of the raising device 11 provided with a forced weeding device 51 in front as shown in FIG. 6 will be described. The forced weeding device 51 is juxtaposed to the raising device 11 that turns the raising claws 42 sideways, and has a structure in which the raising claws 52 are turned vertically. And it forcibly causes the lodging grain stem. The forced weeding device 51 of the present embodiment is configured such that the plurality of forced weeding devices 51 located at both ends are rotatable left and right around the lower partial grass pipe 53.

When the grain stem caused by the above structure is lying on the right side, the forced weeding device 51 is rotated leftward with respect to the body 3 to operate. Thereby, the grain culm of the rightmost line is reliably transported to the raising path B from the root of the plant to the head, and the grain culm of the leftmost line is guided to the uncut land side and transported to the narrow guide 54, and the culm to the raising carrier Can be prevented from being entangled. When the culm is lying on the left side, by rotating the forced weeding device 51 to the right side, the same operation as described above is performed in the left and right direction, which is effective for the middle splitting operation.

[0026]

According to the present invention constructed as described above, the pretreatment support frame does not hinder the operation and operation of the pretreatment portion, and especially the grain culms to be conveyed are obstructed by the pretreatment support frame. Therefore, it is possible to maintain an orderly conveyance posture, and there is an effect that grain spills and the like are eliminated.

According to the second aspect of the present invention, since the traveling device is positioned forward of the body, the overall length of the body can be shortened, and the front-rear balance of the combine can be improved, thereby improving the workability. is there.

[Brief description of the drawings]

FIG. 1 is a composite side view in which a rear part of a combine is omitted.

FIG. 2 is a composite plan view in which a rear portion of the combine is omitted.

FIG. 3 is a cross-sectional view of a main part of XX during transportation of a grain culm.

FIG. 4 is a lower sectional view of the raising device.

FIG. 5 is a lower sectional view of the raising device.

FIG. 6 is a front view of a pretreatment unit having a forced weeding device.

[Explanation of symbols]

 A stock transfer route 1 traveling device 3 airframe 6 pre-processing unit 27 pre-processing support frame 36 transmission shaft

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 60-131126 (JP, U) JP 4-40431 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01D 67/00 A01D 61/00

Claims (2)

(57) [Claims] An airframe (3) supported by a traveling device (1)
And a pre-processing section (6) disposed in front of the body (1), and a pre-processing support frame (6) that connects the pre-processing section (6) to the body (3) side so as to swing up and down. 27) and a transmission shaft (36) for transmitting the driving force of the pre-processing unit (6) from the body (3) side to the pre-processing unit (6) side, and the transmission shaft (36) After being harvested in the combine passing through the support frame (27)
The origin of the cereal stalk sent to the pretreatment support frame (27)
So that it does not come into contact with the pretreatment support frame (27).
A pre-processing support frame for a combine, wherein a portion corresponding to the stock transport path (A) intersecting in plan view and side view is formed in a concave shape. 2. An airframe (3) supported by a traveling device (1).
And a pre-processing section (6) disposed in front of the body (1), and a pre-processing support frame (6) that connects the pre-processing section (6) to the body (3) side so as to swing up and down. 27) and a transmission shaft (36) for transmitting the driving force of the pre-processing unit (6) from the body (3) side to the pre-processing unit (6) side, and the transmission shaft (36) In the combine inserted in the support frame (27), a portion of the pretreatment support frame (27) facing the front end of the traveling device (1) is formed in a concave shape, wherein the pretreatment support frame for a combine is characterized in that: .