JP4025478B2 - Combine frame structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a frame for supporting an engine of a combine.
[0002]
[Prior art]
A conventional combine engine has an engine support base fixed above the transmission case at the rear of the fuselage or under the seat, and an engine mounting plate is disposed on the upper surface of the engine support base via an anti-vibration rubber. The engine was fixed on the upper surface of the board.
[0003]
Then, a belt or chain transmission mechanism is provided between the output shaft of the engine and the input shaft of the transmission case so that power from the engine is input to the transmission case.
[0004]
[Problems to be solved by the invention]
However, in the prior art as described above, since the engine support base is interposed between the engine and the transmission case in the combine, the entire length of the airframe is increased by the arrangement space of the engine support base.
[0005]
Further, due to the positional relationship between the output shaft of the engine and the input shaft of the transmission case, a useless space is created below the engine support base. Moreover, in order not to transmit the vibration from the engine to others, the anti-vibration rubber is disposed between the engine mounting plate and the engine support base, but only the thickness of the anti-vibration rubber and the engine mounting plate. The engine installation height was high.
[0006]
This invention makes it a subject to make the arrangement | positioning space of an engine small and to improve the maintainability of the wheel of a crawler traveling apparatus in view of the said point.
[0007]
[Means for Solving the Problems]
The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.
[0008]
At the rear part of the fuselage of the combine, a part of the fuselage frame is vertically arranged as a border frame (35a) and a fuselage frame (35), and the inside of the vertically arranged border frame (35a) and the fuselage frame (35) Then, an inclined bracket (38, 38) is fixed above the transmission case (23), and a mounting surface for mounting and fixing the engine (22) is formed by the inclined bracket (38, 38). The engine mounting plate (28, 28) having a central portion formed in a substantially “h” shape in a side view is fixed to the lower portion of the engine (22), and the engine mounting plate ( 28, 28) is inclined. The outer lower surface (28a / 28b) is placed on the inclined bracket (38/38), and an anti-vibration rubber (60/60) is interposed between the two, and the inclined bracket (38/38) is attached. , Engine mounting plate (28, 28) is fixed by fixing bolts (62, 62) .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The means for solving the present invention is as described above. Next, embodiments of the present invention will be described.
[0010]
FIG. 1 is an overall side view of a combine equipped with a raising case according to the present invention, FIG. 2 is a plan view, FIG. 3 is a front view, and FIG. 4 is a perspective view of the body frame showing the structure of the body frame.
[0011]
5 is a side sectional view showing the arrangement of the engine and the crawler type traveling device, FIG. 6 is a side sectional view showing the arrangement of the engine, FIG. 7 is a perspective view showing the structure of the track frame, and FIG. It is.
[0012]
FIG. 9 is a front view of a wheel showing the arrangement of the wheels , FIG. 10 is a front view of the wheel showing the arrangement of the conventional wheels, and FIG. 11 is a side view of the wheels.
[0013]
1 to 4, the overall structure of the combine will be described. As shown in FIGS. 1 and 2, the combine handling cylinder 4 in the present embodiment is arranged such that its rotational axis 4a is arranged in the left-right direction and the length in the front-rear direction of the machine body is shortened. This combine supports the airframe on the crawler type traveling device 1, and the crawler type traveling device 1 supports the idler 45 and the wheels 46, 46... On the track frame 2, and the track frame 2 is shown in FIG. As shown in FIG. As shown in FIG. 1, a sorting unit is disposed on the body frame 35, 35, and a threshing unit 3 is disposed thereon. The threshing unit 3 includes a handling cylinder 4 and a feed chain 5, and the sorting unit is a swing sorting device 6. It consists of karachi, 33, and cereal boards. A Glen tank 19 is disposed on the threshing unit 3. The cutting part 7 is disposed at the front end of the machine body, and is configured by a pulling case 8, a scraping device 9, a cutting blade 10, a stock transporting device 12, a tip transporting device 13, and the like.
[0014]
A control unit 14 is disposed on the right side of the cutting portion 7 in the traveling direction. The control unit 14 has a seat 16 disposed at the rear of the step 15, an operation column 11 is erected on the front, and the operation column 11 is rounded on the operation column 11. A handle 17 of the mold is arranged so that it can be steered, and a main transmission lever 18 is arranged on the side thereof. A grain tank 19 is arranged on the threshing unit 3, and the grain after sorting is put into the threshing cylinder 20. Then, the engine 22 is placed on the rear part of the machine body so that the crawler type traveling device 1 can be driven via the transmission case 23. As shown in FIG. Has been.
[0015]
Next, a specific configuration and operation will be described. As shown in FIG. 1, the cutting portion 7 is supported so as to be rotatable up and down around a rotation fulcrum shaft 26 provided at the front portion of the machine frame, and a cylinder 27 is interposed between the track frame 2 and the cutting frame 29. Is interposed so that the cutting part 7 can be moved up and down. As shown in FIGS. 2 and 3, a triangular weed board 41 is disposed at the front end of the cutting frame 29, a pulling device 40 is disposed at the rear of the weed board 41, and a star wheel is disposed at the rear thereof. A scraping device 9 made up of, for example, a scraping belt is arranged, and the cereal is pulled up and raised by the device 40 and then swept backward from the left and right center. Then, the stock is clamped by the stock transport device 12 and the stock is cut by the cutting blade 10. The stock transporter 12 and the tip transport device 13 are arranged from the rear part of the pulling device 40 to the rear side part of the threshing unit 3 along the left side of the machine body in the traveling direction. 13 A transfer device 24 is arranged on the side between the rear part and the feed chain 5.
[0016]
As shown in FIG. 1, the feed chain 5 is located at the rear of the threshing portion 3 and below the grain tank 19 and is arranged in a substantially horizontal direction. It is arranged so as to sandwich the grain stock and transport it from left to right in the direction of travel. The tip side of the cereal is guided and introduced from the rear part of the tip transport device 13 to the threshing inlet 25 opened at the upper left part of the machine body, and is threshed by the rotation of the barrel 4 of the threshing part 3. In this embodiment, the threshing part 3 is used as an upper handling type, and the height of the handling cylinder 4 is lowered to lower the center of gravity so as to improve the weight balance of the machine body.
[0017]
A lower part of the handling cylinder 4 is covered with a crimping net 30, and a selection mechanism 31 is disposed below the crimping net 30. The sorting mechanism 31 includes a swing sorting device 6 that swings in the front-rear direction with the rear portion as a fulcrum, a sieve wire 32 that is placed and swung at the front end of the swing sorting device 6, and a rear lower portion of the swing sorting device 6. And the first conveyor 34 and the first basket which take out the grains to be leaked by being provided in the front lower part of the sorting device 6 and to the cereal cylinder 20. The second conveyor 36 and the second basket for taking out the second reduced product that is provided below the sieving wire 32 and is mixed with leaking grains, swarf, etc., and the second reduced product from the second conveyor 36 are selected. A second reduction conveyor 36 that returns to the upper surface of the apparatus 6 and a suction / exhaust dust fan 37 that sucks and discharges dust, dust and the like on the upper surface of the sieve wire 32 from the suction port on the upper right side of the sieve wire 32 and the like. .
[0018]
In addition, as shown in FIG. 2, the right side of the rear end of the handling cylinder 4 is the fourth port, and the waste is discharged from the right side of the rear of the handling cylinder 4 to the rejection cutter 21, thereby eliminating the rejection conveyor and reducing the weight of the machine body. And downsizing. Moreover, the grain tank 19 is arrange | positioned at the upper part of the threshing part 3, and the capacity | capacitance which accommodates a grain is made as large as possible by making it into the substantially body width | variety in the left-right direction from the seat 16 rear part to the body rear part in the front-back direction. As shown in FIG. 3, the lower part of the Glen tank 19 is V-shaped when viewed from the front, and a discharge conveyor 39 is arranged in the front-rear direction at the bottom so that the stored basket can be discharged rearward.
[0019]
In such a configuration, the tines 43, 43,... Of the pulling device 40 are rotated to pull the fallen cereals, and the stocking device 9 is scraped to the center side by the scraping device 9, and the stock is cut by the cutting blade 10. To do. Then, the culm is sandwiched between the stock transport device 12 and the tip transport device 13 and transported backward while standing along the left side of the machine body, and the stock is transferred to the feed chain 5 by the inherit transport device 24. Is guided to the threshing entrance 25.
[0020]
While the grain culm sandwiched between the feed chains 5 is conveyed to the right, it is shed by the rotation of the barrel 4, and the waste is sent to the waste cutter 21 from the right end and released to the field from the rear after cutting. In addition, the grains, dust, etc. that have leaked through the crimp net 30 fall on the swing sorting device 6, and the sawdust, dust, etc. are sent forward by wind sorting and swing sorting. The granules pass through the chaff fins, the grain sieves, etc., are guided by the cereal board, etc., fall onto the topmost bowl, are sent to the right side by the first conveyor 34, and are transferred to the grain tank 19 through the cereal cylinder 20. Stored.
The second object that has fallen through the sieve wire 32 falls on the second basket, is reduced again from the second conveyor 36 to the rear part of the swing sorting device 6 through the second reduction conveyor, and is again sorted. . And soot, dust and the like are sucked by the suction / exhaust dust fan 37 and discharged outside the apparatus.
[0021]
Next, an embodiment of the mounting structure of the engine 22 according to the present invention will be described. As shown in FIGS. 4 to 6, an aircraft frame 35, 35 is arranged in the vertical direction at the rear of the aircraft, and an engine 22 is arranged inside the aircraft frame 35, 35, and the engine 22 is located above the transmission case 23. , The engine mounting plate 28 having a substantially “H” shape in side view is fixed to the lower portions of both sides of the main body of the engine 22 by bolts 61 and 61, and vibration-proof rubbers 60 and 60 are attached to the outer lower surfaces 28 a and 28 b of the engine mounting plate 28. Are fixed to brackets 38, 38 fixed to the boundary frame 35a and the vertical portion of the body frame 35 by fixing bolts 62, 62.
[0022]
Thus, by arranging the engine mounting plate 28 and the bracket 38 at an angle, the engine 22 can be fixed to the vertical frame, the horizontal frame can be omitted, and the center of gravity of the engine 22 is lowered. Thus, the space below the engine 22 can be reduced, and the vehicle height of the combine can be reduced. In addition, the arrangement configuration of such an engine is not limited to the combine according to the present invention, and can be widely implemented in agricultural machines.
[0023]
As shown in FIG. 5, the engine 22 is arranged above the mission case 23 at the rear of the airframe, so that there is no overlapping portion when viewed from the front, and the overall length of the airframe can be shortened by L as compared with the conventional case. Alternatively, the entire length of the aircraft may be shortened as a configuration in which the engine 22 is disposed at the front of the aircraft and placed above the mission case 23. Further, in such a configuration, the drive sprocket of the crawler type traveling device can be disposed in front of the conventional one, and the crawler has an angle formed by the axis of the drive sprocket and the axis of the rearmost wheel with the horizontal plane. The winding angle of the belt, that is, the bed separation angle β can be made larger than the conventional bed separation angle α, and it is possible to easily cross the heel.
[0024]
Next, the configuration of the traveling device according to the present invention will be described. As shown in FIGS. 1 and 5, the crawler traveling device 1 is supported by a track frame 2, and includes a drive sprocket 44 at the rear end, an idler 45 at the front end, and a drive sprocket 44 and an idler 45. The crawler belt 47 is wound around the rollers 46, 46,.
[0025]
The output from the engine 22 is input to an input pulley 55 of the mission case 23, and a drive sprocket 44 is fixedly attached to an output shaft that is horizontally mounted on the lower portion of the mission case 23 to transmit power to the crawler belt 47. It is.
[0026]
As shown in FIGS. 7 and 8, the track frame 2 is composed of a crawler frame 2a that supports the wheels 46 and a chassis frame 2b that is connected to and supported by the machine body frame. The chassis frame 2b is inserted into the recess from above and fixed with bolts or the like.
[0027]
As shown in FIG. 9, the wheel 46 is configured by disposing wheel portions 46 b and 46 b at both ends of the shaft 46 a so as to have a substantially “H” shape when viewed from the front. As shown in FIG. 10, the support structure is such that a shaft 46′a that supports the wheel is protruded inward, the shaft 46′a is inserted into the crawler frame 2′a, and fastened by a bolt 68 ′ from the inside. Although it is fixed, it is cantilevered, and it is troublesome to attach and detach from the inside. Therefore, in this configuration example , as shown in FIG. 9, the left and right center position of the crawler frame 2a and the left and right center position of the shaft 46a In other words, the left and right centers of the rollers 46 are rotatably supported via bearings so that both wheel portions 46b and 46b of the rollers 46 are disposed on both sides of the crawler frame 2a. Is doing . Further, as shown in FIG. 11, round holes 46c, 46c,... Are opened at equal intervals in the peripheral portion of the wheel 46 in a side view, and the round holes 46c, 46c,. The wheels 46b and 46b are prevented from rotating by connecting them with linkages or the like, and the wheels 46b and 46b are fastened by bolts 68 to both ends of the shaft 46a. In the present configuration example, the round holes 46c, 46c,... Have three openings in the peripheral portion of the wheel 46b, but the number is not particularly limited.
[0028]
As shown in FIGS. 7 and 8, a crawler guide 49 for guiding the rotating surface of the crawler belt 47 is disposed below the crawler frame 2a, and the crawler guide 49 is disposed on the lower surface of the crawler frame 2a. The fixing bolts 71 and 71 are inserted from the crawler frame 2a and fastened.
[0029]
In this way, the bolts 71 and 71 are inserted in the vertical direction on the lower surface of the crawler frame 2a and fastened to fix the crawler guide 49, so that the crawler also receives the force in the front-rear direction received by the crawler belt 47 rotating in the front-rear direction. The fastening portion of the guide 49 is difficult to loosen.
[0030]
.. And crawler guides 49 are disposed on the track frame 2, and the chassis frame 2 b is fitted from above the track frame 2, and the fixing bolt 73 is formed from the outer side surface of the crawler frame 2 a. The chassis frame 2b is fixed to the crawler frame 2a. Also, the bolt hole 2c on the chassis frame 2b side of the fixing bolt 73 may be configured as a long hole so that the height of the chassis frame 2b can be adjusted and the vehicle height of the combine can be changed. it can.
[0031]
In the crawler type traveling device, the support arm is extended from the track frame in the left-right center direction to support the airframe frame. Therefore, the wheels formed by the inner and outer wheels supported by the track frame are A large load was applied, and strength improvement with a cross member was necessary. In addition, since the wheel is fastened from the inside of the track frame, when the wheel is removed for replacement or the like, the combine main body must be jacked up and the operator must go under the combine. The work process was complicated.
[0032]
By combining the track frame of the combiner with a support frame that fixes the track frame to the fuselage frame and a traveling device support frame that supports the wheels, the combine body can be jacked up as in the past. Maintenance can be easily performed by removing the fastening with the crawler frame, jacking up only the chassis frame, and removing the bolts for fastening the wheels from the outside of the track frame, without entering the lower part of the machine body.
[0033]
Further, by supporting the right and left center of the wheel on the traveling device support frame of the track frame, the center of gravity position of the wheel falls below the center of gravity of the left and right track frames. A load is applied evenly, and reinforcement by the cross member of the track frame can be eliminated. In addition, with this configuration, conventionally, some of the members constituting the left and right track frames (crawler frames) had to be processed symmetrically with respect to the left and right pairs, respectively. In this case, the members can be processed to have the same shape on the left and right, and the process and cost required for production processing can be reduced. Also, when the wheels are arranged on the track frame, the outer surface of the track frame can be reduced. The bolts can be attached to and detached from each other and can be easily assembled.
[0034]
Further, since the crawler guide is fastened and fixed to the lower surface of the traveling device support frame, the fastening portion of the crawler guide is not easily loosened against the force in the front-rear direction received by the crawler belt rotating in the front-rear direction of the machine body.
[0035]
【The invention's effect】
The present invention is configured as described above, and has the following effects.
At the rear part of the fuselage of the combine, a part of the fuselage frame is vertically arranged as a border frame (35a) and a fuselage frame (35), and the inside of the vertically arranged border frame (35a) and the fuselage frame (35) Then, an inclined bracket (38, 38) is fixed above the transmission case (23), and a mounting surface for mounting and fixing the engine (22) is formed by the inclined bracket (38, 38). An engine mounting plate (28, 28) having a central portion formed in a substantially “h” shape in a side view is fixed to the lower portion of the engine (22), and the engine mounting plate (28, 28) is inclined. The outer lower surface (28a, 28b) is placed on the inclined bracket (38, 38), and an anti-vibration rubber (60, 60) is interposed between the two, and the inclined bracket ( 38, 38). Engine mounting plate Since (28, 28) is fixed by the fixing bolts (62, 62) , the engine support base can be eliminated, the overall length of the body can be shortened, and the weight of the body can be reduced.
[0036]
Further, the engine mounting plate (28/28) and the bracket (38/38) are arranged obliquely on the vertical boundary frame (35a) and the fuselage frame (35), and the engine (22) is mounted thereon. Thus, the center of gravity of the engine (22) is lowered, the space below the engine (22) is reduced, and the vehicle height of the combine can be reduced.
In the combine, the fuselage frame is arranged vertically, and an engine mounting plate having a substantially “h” -shaped central portion is fixed to the lower part of the engine in a side view, and the fuselage is attached to the engine mounting plate via vibration-proof rubber. By fixing to the bracket fixed to the vertical part of the frame, the center of gravity of the engine can be lowered and the vehicle height can be lowered, and the useless space below the engine can be reduced.
[Brief description of the drawings]
FIG. 1 is an overall side view of a combine equipped with a pulling device of the present invention.
FIG. 2 is also a plan view.
FIG. 3 is also a front view.
FIG. 4 is a perspective view of an airframe frame showing a configuration of the airframe frame.
FIG. 5 is a side sectional view showing an arrangement configuration of an engine and a crawler type traveling device.
FIG. 6 is a side sectional view showing the arrangement configuration of the engine.
FIG. 7 is a perspective view showing the structure of a track frame.
FIG. 8 is a front sectional view of the same.
FIG. 9 is a front view of a wheel showing an arrangement configuration of the wheel in the present configuration example.
FIG. 10 is a front view of a wheel showing a conventional arrangement of the wheel.
FIG. 11 is a side view of a wheel.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Crawler type traveling apparatus 2 Track frame 2a Crawler frame 2b Chassis frame 22 Engine 23 Mission case 28 Engine mounting plate 28a Inclined part 46 Roller wheel 47 Crawler belt 49 Crawler guide 60 Anti-vibration rubber 71 Fixing bolt

Claims (1)

At the rear part of the fuselage of the combine, a part of the fuselage frame is vertically arranged as a border frame (35a) and a fuselage frame (35), and the inside of the vertically arranged border frame (35a) and the fuselage frame (35) Then, an inclined bracket (38, 38) is fixed above the transmission case (23), and a mounting surface for mounting and fixing the engine (22) is formed by the inclined bracket (38, 38). An engine mounting plate (28, 28) having a central portion formed in a substantially “h” shape in a side view is fixed to the lower portion of the engine (22), and the engine mounting plate (28, 28) is inclined. The outer lower surface (28a, 28b) is placed on the inclined bracket (38, 38), and an anti-vibration rubber (60, 60) is interposed between the two, and the inclined bracket (38, 38). , Engine mounting plate Frame structure of combine, characterized in that fixed by 28, 28) of the fixing bolts (62, 62).

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