JP2008161067A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester that hardly loses a weight balance in the right and left directions of a machine body and increases direct advance traveling performances of the machine body, by arranging two motors in a divide manner in the right and left directions relatively to the center of gravity position of the machine body as a whole. <P>SOLUTION: The combine harvester comprises: a threshing apparatus (4) equipped with a feed chain (25) and a grain storage apparatus (3) equipped with a grain unloading apparatus (23) at the upper side of a traveling apparatus (1); and a reaping apparatus (5) installed ahead of the threshing apparatus (4). The combine harvester is further equipped with the first motor (6) for driving the traveling apparatus (1), the threshing apparatus (4) and the grain unloading apparatus (23) and the second motor (68) for driving the reaping apparatus (5) and the feed chain (25), independently from the first motor (6). The first motor (6) and the second motor (68) are disposed in a divided manner, in the right and left directions relative to the center of gravity position of the whole machine body. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a combine.

  Conventionally, a combine is configured by mounting a threshing device having a feed chain on the upper side of a traveling device and a grain storage device having a grain discharging device, and providing a reaping device on the front side of the threshing device. And all these apparatuses are branched and transmitted by a single engine.

Further, as exemplified in Patent Document 1, there is known a working vehicle provided with a first engine that drives a traveling device and a second engine that drives a work machine independently of the first engine.
By configuring in this way, each engine is reduced in size by sharing the total load, and is intended to be provided at a lower cost compared to the case where a single high-output large engine is mounted.
Utility Model Registration No. 2520997

  However, as described above, when the first engine that drives the traveling device and the second engine that drives the work machine independently of the first engine are mounted, a single high-power engine is mounted. Compared to the case, the total weight of the engine increases.

  For this reason, when the first engine and the second engine are concentrated on the left and right sides with respect to the center of gravity of the entire fuselage, the left and right directions of the fuselage are compared to the case where a single high-power engine is installed. Will lose the weight balance.

As a result, in a wet paddy field or the like, the left and right traveling devices are more heavily loaded than the left and right other traveling devices and are likely to sink, resulting in a problem that the straight traveling performance of the airframe decreases.
Moreover, in the working vehicle described in the above-mentioned Patent Document 1, the positional relationship between the first engine and the second engine in the left-right direction is not described, and the first engine and the second engine are in the body. It is unclear whether it is placed in a position that improves the left-right weight balance.

In order to solve the above-mentioned problems, the present invention takes the following technical means.
That is, the invention described in claim 1 includes a threshing device (4) having a feed chain (25) on the upper side of the traveling device (1) and a grain storage device (3) having a grain discharging device (23). In a combine provided with a reaping device (5) on the front side of the threshing device (4), the first prime mover that drives the traveling device (1), the threshing device (4), and the grain discharging device (23) (6) and a second prime mover (68) for driving the reaping device (5) and the feed chain (25) independently of the first prime mover (6) are provided, and the first prime mover (6 ) And the second prime mover (68) are arranged in the left-right direction with respect to the center of gravity of the entire aircraft.

  As a result, the first prime mover 6 and the second prime mover 68 are arranged in the left-right direction with respect to the center of gravity of the entire fuselage, so that the weight balance in the left-right direction of the fuselage is unlikely to be disrupted and is applied to the traveling device 1. The load is less likely to be biased to the left and right sides.

The invention according to claim 2 is the combine according to claim 1, wherein the output of the first prime mover (6) is set larger than the output of the second prime mover (68).
As a result, the traveling device 1, the threshing device 4 and the grain discharging device 23 having a large driving load are driven by the first prime mover 6 having a large output, and the reaping device 5 and the feed chain 25 having a small driving load have a small output. 2 Driven by prime mover 68.

  According to a third aspect of the present invention, there is provided linkage means (103) for starting both the first prime mover (6) and the second prime mover (68) based on a start operation of a single start operation means (108). The combine according to claim 1, wherein the combine is provided.

Thus, when the single starting operation means 108 is started, the first prime mover 6 and the second prime mover 68 are started together by the linkage means 103.
According to a fourth aspect of the present invention, the first prime mover (6) and the first motor (6) are connected with each other based on a stop operation of a single stop operation means (107) or an abnormality detection result by an abnormality detection means (104) provided in each part of the machine body. 2. The combine according to claim 1, further comprising connecting means (103) for stopping both the two prime movers (68).

  Thus, both the first prime mover 6 and the second prime mover 68 are stopped based on the stop operation of the single stop operation means 107 or the abnormality detection result by the abnormality detection means 104 provided in each part of the machine body.

  According to the first aspect of the present invention, the first prime mover 6 and the second prime mover 68 are arranged in the left-right direction with respect to the center of gravity of the entire fuselage, so that the weight balance in the left-right direction of the fuselage is not easily lost. The load applied to the traveling device 1 is less likely to be biased to the left and right sides, and the straight traveling performance of the aircraft can be improved.

  Further, according to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the traveling device 1, the threshing device 4, and the grain discharging device 23 having a large driving load are connected to the first prime mover 6 having a large output. By driving the reaping device 5 and the feed chain 25 with a small driving load by the second prime mover 68 with a small output, an increase in the weight of the aircraft is reduced by setting the engine to an output corresponding to the driving load. Thus, the straight running performance and wetland running performance of the aircraft can be improved.

  According to the third aspect of the invention, in addition to the effect of the first aspect of the invention, the first prime mover 6 and the second prime mover 68 can be started together by the single starting operation means 108. Compared to a configuration in which the prime mover 6 and the second prime mover 68 are separately started, the start operation of the prime mover can be easily performed, and the operability of the combine can be improved.

  According to the invention described in claim 4, in addition to the effect of the invention described in claim 1, both the first prime mover 6 and the second prime mover 68 are combined based on the stop operation of the single stop operation means 107. Since it can stop, compared with the structure which carries out stop operation of the 1st prime mover 6 and the 2nd prime mover 68 separately, stop operation of a prime mover can be performed easily and the operativity of a combine can be improved. In addition, since both the first prime mover 6 and the second prime mover 68 can be stopped based on the abnormality detection result by the abnormality detection means 104 provided in each part of the machine body, it is possible to reduce damage at the location where the abnormality has occurred.

An embodiment of a traveling device according to the present invention will be described by taking a self-removing combine as an example.
As shown in FIGS. 1 to 3, the fuselage of the combine is equipped with a control unit 2 on the front side of the upper side of the traveling device 1, and a grain storage device 3 is mounted on the rear side of the control unit 2, A threshing device 4 is mounted on the side of the grain storage device 3, and a reaping device 5 is supported on the front side of the threshing device 4 so as to be movable up and down.

  The traveling device 1 includes a traveling mission case 7 driven by a first engine (first prime mover) 6, left and right drive sprockets 8, 8 driven by the traveling mission case 7, and left and right wheel frames 9. Crawlers 12 and 12 are wound around a group of wheels 10 and 10 that are pivotally supported at an intermediate portion of 9 and 9 and left and right tension wheels 11 and 11 that are pivotally supported at rear ends of the wheel frames 9 and 9. Constitute.

  The steering unit 2 is provided with a seat 14 on the upper side of an engine cover 13 that surrounds the first engine 6, and a steering operation tool 16 and a wrist are placed on the upper right side of a front operation post 15 erected in front of the seat 14. A base 17 is arranged in the front-rear direction, and a main transmission lever (transmission operation tool) 19, an auxiliary transmission lever 20, and a throttle lever 21 are arranged on a side operation panel 18 provided on the left side of the seat 14.

  The grain storage device 3 includes a grain tank 22 made of synthetic resin, a bottom conveying spiral 65 provided at the bottom of the grain tank 22, and a milling cylinder erected on the rear side of the grain tank 22 so that the vertical axis can freely rotate. 23a and a grain discharging device 23 including a discharging cylinder (not shown) communicated with the upper end of the whipping cylinder 23a in a vertically rotatable manner. In addition, the said discharge cylinder is comprised so that expansion-contraction is possible by the drive of an expansion-contraction drive.

  The threshing device 4 includes a handling cylinder 24 and has an upper handling chamber provided with a feed chain 25 on a side portion thereof, and a dust removal treatment that communicates with a rear end portion of the handling chamber and has a dust removal treatment cylinder 26 installed therein. A chamber, a second processing chamber in which a second processing drum 27 is provided coaxially on the front side of the dust removal processing drum 26, a swing shelf 28, a tang 29a, a first transfer spiral 30, a second transfer spiral 31, It comprises a lower sorting chamber equipped with a dust exhaust fan 32 and the like. A second Kara 29b for blowing the sorting air from the front side of the front wall of the sorting chamber is provided, and the blowing air of the second Kara 29b is blown backward from between the transfer shelf 28a of the swing shelf 28 and the sorting net 28b. Configure. In FIGS. 1 and 3, reference numeral 41 denotes a reduction helix disposed below the dust removal treatment chamber. The reduction helix 41 transfers the object to be processed leaked from the dust removal treatment chamber forward. To the swing shelf 28 and re-sort.

  The reaping device 5 includes a main frame 33 supported so as to be rotatable up and down with respect to the machine body, a right and left gear case 34 connected to the front end of the main frame 33, and a weed extending from the gear case 34 to the front. A pipe 35, a cutting blade 36 attached to an intermediate portion of the weed pipe 35, a weed body 37 attached to the tip of the weed pipe 35, a front portion of the weed pipe 35, and the gear case 34. A pulling device 38 supported by the raised upper end of the transmission pipe, a stock source side transport device 39, and a supply transport device 40 that takes over the harvested cereals from the stock source side transport device 39 and delivers it to the feed chain 25. Consists of.

Then, the transmission structure of this combine is demonstrated.
First, the transmission mechanism by the first engine 6 will be described.
As shown in FIG. 1, the water-cooled first engine 6 is disposed above the right crawler 12 and is mounted on the right side with respect to the center of gravity of the entire machine body. A cooling fan 42 is provided outside the first engine 6, and a radiator 43 is disposed outside the cooling fan 42. Then, three output pulleys 45 are provided on the output shaft 44 protruding from the inner side of the first engine 6, and a second cooling fan 46 is attached to the tip of the output shaft 44.

  A transmission belt 48 is wound between the output pulley 45 and the input shaft 47 b of the hydraulic pump 47 a of the hydrostatic continuously variable transmission 47 attached to the upper part of the traveling mission case 7. A is a cooling fan attached to the tip of the input shaft 47b. The output shaft of the hydraulic motor 47 c of the hydrostatic continuously variable transmission 47 is input-linked to the transmission gear mechanism in the side transmission case 49, and the output shaft of the side transmission case 49 is connected to the auxiliary transmission shaft of the traveling mission case 7. 51 is splined. A center gear 53 is interlocked from the auxiliary transmission shaft 51 via a transmission gear mechanism 52, and left and right wheel gears 55, 55 and left and right axles 56 are provided via side clutch mechanisms 54, 54 provided on the left and right sides of the center gear 53. , 56 are interlocked. Incidentally, by adjusting the swash plate angle of the hydraulic pump 47a of the hydrostatic continuously variable transmission 47 by the forward / backward tilting operation of the main transmission lever 19, the drive speeds of the left and right axles 56, 56 change, and the vehicle speed. Is a configuration in which the speed is changed. The transmission gear mechanism 52 is operated by a forward / backward tilting operation of the auxiliary transmission lever 20.

  A transmission belt 59 is wound between the output pulley 45 of the first engine 6 and the input pulley 58 attached to the end of the input shaft protruding from the threshing counter case 57 to the inside of the machine body. And, through the threshing counter case 57, the second processing cylinder 27 and the dust removal processing cylinder 26, the handling cylinder 24, the swing shelf 28, the tang 29a, the first transfer spiral 30, and the second transfer. The spiral 31, the dust exhaust fan 32, and the squeezing cutter 60 that is attached to the rear part of the threshing device 4 and cuts the scouring after threshing are configured to be driven in conjunction with each other.

  A transmission belt 63 is wound between the output pulley 45 of the first engine 6 and the input pulley 62 at the tip of the input shaft that protrudes from the bevel gear transmission case 61 to the inside of the machine body. And between the output pulley 64 of the front-end | tip of the output shaft which protruded back from this bevel gear transmission case 61, and the input pulley 66 provided in the front protrusion end part of the bottom part conveyance spiral 65 of the said grain storage apparatus 3, it transmits. A belt 67 is wound around to constitute a tension clutch.

Next, a transmission mechanism by the second engine (second prime mover) 68 will be described.
The air-cooled second engine 68 is disposed between the threshing device 4 and the reaping device 5 so as to be disposed above the left crawler 12 and biased to the left with respect to the center of gravity of the entire machine body. Installed. An output shaft 69 of the second engine 68 is provided so as to protrude outside the second engine 68, and an output pulley 70 is provided at the protruding end. Thereby, the maintenance of the transmission system of the second engine 68 can be easily performed from the left side surface of the airframe. Then, a transmission belt 73 is wound between the output pulley 70 and an input pulley 72 provided on the input shaft of the hydrostatic continuously variable transmission 71 for driving the cutting device 5. Two output pulleys 74 are provided on the output shaft of the hydrostatic continuously variable transmission 71 for driving the reaping device 5, and one of the output pulleys 74 and an input pulley 75 provided on the input shaft of the reaping device 5 are provided. A transmission belt 76 is wound around. A transmission belt 79 is wound around the other output pulley 74 and an input pulley 78 provided at the inner end of the feed chain drive shaft 77. A feed chain drive sprocket 80 is attached to the outer end portion of the feed chain drive shaft 77 and the front end portion of the feed chain 25 is wound around. Further, a transmission belt 83 is wound between an output pulley 81 provided at an intermediate portion of the feed chain drive shaft 77 and an input pulley 82 provided at a rotation shaft end portion of the second tang 29b. A one-way clutch 84 for preventing reverse rotation is provided between the rotary shaft end of the second tang 29b and the input pulley 82. Further, the second engine 68 can be cooled by blowing air from the second cooling fan 46 provided at the tip of the output shaft 44 of the first engine 6. As a result, the second engine 68 can be cooled using the driving force of the first engine 6, and since this cooling air is exhausted to the side opposite to the control unit 2, the hot air of the control unit 2 is also accompanied. It is taken out and the control part 2 can be cooled.

  A throttle operation wire 85 of the first engine 6 and a throttle operation wire 86 of the second engine 68 are connected to the throttle lever 21, and the first engine 6 and the second engine 2 are operated by operating the throttle lever 21. The throttle of the engine 68 is operated.

  A fuel tank 87 is mounted in the lower space of the inclined surface of the bottom of the grain tank 22 in the grain storage device 3, and the first fuel pipe 88 and the second fuel pipe 89 are connected to the fuel tank 87. The same fuel is supplied to both the first engine 6 and the second engine 68. Thereby, a fuel pipe line can be shortened.

  In addition, a battery 90 is mounted on the front side of the fuel tank 87 in the lower space of the inclined surface of the bottom of the grain tank 22 in the grain storage device 3. The battery 90 is used to start the engine to both the starting cell motor of the first engine 6 and the starting cell motor of the second engine 68 via the first power supply line 91 and the second power supply line 92. It is configured to be able to supply the power.

  Further, a single muffler 93 is disposed below the space between the threshing device 4 and the grain storage device 3, and the first exhaust pipe 94 and the first engine 6 and the second engine 68 are respectively The exhaust is sent to the muffler 93 through the second exhaust pipe 95. An exhaust pipe 96 as a finisher is connected to the rear end of the muffler 93, and the exhaust pipe 96 is provided toward the rear of the machine body. Thereby, an exhaust pipe can be comprised short.

  The output horsepower of the first engine 6 is set larger than the output horsepower of the second engine 68, and is set to an output corresponding to each driving load. That is, the first engine 6 having a large output drives the hydrostatic continuously variable transmission 47 for driving driving having a large driving load, the threshing device 4 and the grain discharging device (bottom conveying spiral 65), and the first output having a small output. By driving the mowing device 5, the feed chain 25, and the hydrostatic continuously variable transmission 71 for driving the second tang 29b by the two engine 68, a balanced transmission structure can be obtained.

  When a high-power engine such as a large combine is installed at the lower part of the operator's seat, this single engine is used as a power source for the entire fuselage, and this engine is increased in size, accompanied by a radiator, air cleaner, Mufflers, engine covers, etc. will also be enlarged. Further, since the weight of the mounting position of the engine is increased, the weight balance of the airframe is lost. Further, the operating seat is exposed to high temperature, high noise, and high vibration, and the operating environment is deteriorated. In addition, when a single engine is installed, since it is necessary to output the total work horsepower in the simultaneous operation of traveling, cutting, and threshing, for example, when part of the traveling device, cutting device, threshing device is clogged, The engine horsepower is intensively applied to the part, and the transmission system and the like of the clogged part are damaged. On the other hand, by configuring as described above, the output of each engine can be reduced, and the above-described problems can be solved.

  In addition, as shown in FIG. 4, the second engine 68 and the hydrostatic continuously variable transmission 71 may be configured integrally. In this case, the second engine 68 is attached to one side surface of the transmission case 97 having the gear transmission mechanism 97 a built in, and the hydrostatic continuously variable transmission 71 is attached to the other side surface of the transmission case 97. Then, the transmission shaft 69b is connected to the output shaft 69 of the second engine 68, the transmission shaft 69b is passed through the transmission case 97, and the hydraulic pump of the hydrostatic continuously variable transmission 71 from the projecting end of the transmission shaft 69b. 98 is configured to be driven. Further, the output shaft of the hydraulic motor 99 of the hydrostatic continuously variable transmission 71 is linked to the gear transmission mechanism 97a in the transmission case 97, and the cutting output pulley 100 is connected to the protruding end of the output shaft 97b of the gear transmission mechanism 97a. And a feed chain output pulley 101 are provided. With this configuration, the transmission mechanism between the second engine 68 and the hydrostatic continuously variable transmission 71 can be simplified and manufactured at low cost, and failure can be reduced.

  Further, as shown in FIG. 3, a layer thickness sensor (abnormality detection means) 102 capable of detecting the layer thickness of the object to be sorted on the sheave 28c is provided above the sheave 28c in the swing shelf 28, and You may comprise a connection means as shown in FIG.

  That is, as shown in FIG. 5, a clogging sensor (abnormality detection means) 104, a first engine stop switch 105, a second engine stop switch 106, An engine stop switch (single stop operation means) 107 capable of simultaneously stopping the first engine 6 and the second engine 68, and an engine start capable of simultaneously starting the first engine 6 and the second engine 68. A switch (single start operation means) 108, a first engine stop detection sensor 109 that detects a stop state of the first engine 6, and a second engine stop detection sensor 110 that detects a stop state of the second engine 68. Connecting. Then, on the output side of the controller 103, a first engine stop actuator 111 for stopping the first engine 6, a second engine stop actuator 112 for stopping the second engine 68, and starting the first engine 6. The first engine starter 113 to be started and the second engine starter 114 to start the second engine 68 are connected.

  With this configuration, when the single engine start switch 108 is operated, the controller 103 outputs to the first engine starter 113 and the second engine starter 114, and the first engine 6 and the second engine 68 are started substantially simultaneously. . Further, when the single engine stop switch 107 is operated, outputs are made from the controller 103 to the first engine stop actuator 111 and the second engine stop actuator 112, and the first engine 6 and the second engine 68 stop substantially simultaneously. . Thus, since both the first engine 6 and the second engine 68 can be started and stopped by operating a single switch, the operability is improved.

Further, when the layer thickness sensor 102 detects the layer thickness of the object to be sorted that is equal to or greater than a predetermined thickness, the controller 103 outputs to the first engine stop actuator 111 and the second engine stop actuator 112, and the first engine 6 and the second engine 68 are automatically stopped substantially simultaneously. By this, when the sorting object on the sorting shelf 28 becomes an excessive amount and becomes clogged, the first engine 6 and the second engine 68 are automatically stopped, Work to remove clogging of the object to be sorted on the swing shelf 28 and repair work can be performed safely. Also, the clogging sensor 104 and the first engine stop detection sensor 109 or the second engine stop detection sensor 110 When it is detected that either the first engine 6 or the second engine 68 is stopped due to overload, the controller 103 outputs an output to the second engine stop actuator 112 or the first engine stop actuator 111 to drive it. The engine on the side may be configured to automatically stop. That is, when one engine is stopped due to overload, the cutting and threshing operation cannot be performed. Therefore, it is possible to prevent trouble by stopping the other engine.

It is a top view for description of the combine in 1st Example. It is a top view for description of the combine in 2nd Example. It is a side view for the description of the combine in 3rd Example. It is explanatory drawing which shows the integrated structure of a 2nd engine and a hydrostatic continuously variable transmission. It is a block circuit diagram in an example.

Explanation of symbols

1 traveling device 3 grain storage device 4 threshing device 5 reaping device 6 first engine (first prime mover)
23 Grain discharging device 25 Feed chain 68 Second engine (second prime mover)
103 Linking means 104 Abnormality detecting means 107 Stop operating means 108 Start operating means

Claims (4)

  A threshing device (4) having a feed chain (25) and a grain storage device (3) having a grain discharging device (23) are provided on the upper side of the traveling device (1), and the threshing device (4) In the combine provided with the reaping device (5) on the front side, the first prime mover (6) for driving the traveling device (1), the threshing device (4), and the grain discharging device (23) is provided, and the first A second prime mover (68) for driving the reaping device (5) and the feed chain (25) independently of the prime mover (6) is provided, and the first prime mover (6) and the second prime mover (68) are provided. A combine that is arranged in the left-right direction with respect to the center of gravity of the entire aircraft.   The combine according to claim 1, wherein the output of the first prime mover (6) is set larger than the output of the second prime mover (68).   The connecting means (103) for starting both the first prime mover (6) and the second prime mover (68) based on a start operation of a single start operation means (108) is provided. Combine as described.   The first prime mover (6) and the second prime mover (68) are both stopped based on the stop operation of the single stop operation means (107) or the abnormality detection result by the abnormality detection means (104) provided in each part of the machine body. The combine according to claim 1, further comprising a connecting means (103).

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