JP2009033979A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent trouble by defective taking over even in a small amount of waste straws and to prevent occurrence of clogging even when a large amount of the waste straws is transported. <P>SOLUTION: A combine harvester is equipped with a reaping part (3) installed at the front of a car body (2) having a crawler (1), a threshing part (4) arranged at the rear of the car body (2) and a waste straw transporting apparatus (14) for nipping and transporting waste straws after threshing installed at the rear of a threshing chamber (8) of the threshing part (4). The waste straw transporting apparatus (14) is composed of a waste straw transporting chain (16) wound along a chain rail (15) and a nipping rod (17) oppositely arranged on the lower side of the waste straw transporting chain (16) and composed so that the side of the starting end of the chain rail (15) is vertically shaken with the shaft center (P) of a sprocket (27) for driving the chain installed at the intermediate site of the chain rail (15) as a fulcrum. A spring (31) for urging the side of the starting end of the chain rail (15) to the side of the nipping rod (17) is installed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a combine.

Conventionally, as shown in Patent Document 1, for example, as a waste transporting device that transports waste after threshing, the transport start end side of this waste transport chain is opposed to the lower side with the end side as a rotation fulcrum. The thing of the structure provided so that it might rotate up and down with respect to the clamping rod to perform was disclosed.
JP 2004-159543 A

  In the case of the conventional configuration described above, if the waste during transportation is clogged, the waste transport chain is manually manually moved up and down to remove waste, sawdust, weeds, etc. wrapped around the waste transport chain. When the removal work is completed, an operation for restoring and locking the waste transport chain to a predetermined position by a chain positioning device, a locking device, etc. is required. There was a problem that made the operation difficult.

  An object of the present invention is to prevent occurrence of clogging of waste by automatically moving the start end side of the waste transport chain up and down according to the transport amount of waste, and to solve the above problems.

In order to solve the above-mentioned problems, the present invention has taken the following technical means.
That is, the invention according to claim 1 is provided with a cutting part (3) at the front part of the vehicle body (2) provided with the crawler (1), and a threshing part (4) at the rear part of the vehicle body (2), Provided at the rear of the threshing section (4) of the handling chamber (8) is a waste transporting device (14) for sandwiching and transporting the waste after threshing, and the waste transporting device (14) along the chain rail (15). A chain provided at an intermediate portion of the chain rail (15), comprising a waste transporting chain (16) for turning the ticket and a clamping rod (17) provided on the lower side of the waste transporting chain (16). The start end side of the chain rail (15) swings up and down around the axis (P) of the drive sprocket (27) as a fulcrum, and the start end side of the chain rail (15) is urged toward the clamping rod (17). The combine is characterized by providing a spring (31).

  The waste after threshing is handed over from the end of the feed chain 10 to the start of the waste transporting device 14. After the takeover, the waste is sandwiched and conveyed by the lower clamping rod 17 and the upper waste conveying chain 16, and sent to the waste cutter C from the end to be cut.

  When the transport amount of the waste handed over to the starting end of the waste transport device 14 increases, the lower sandwiching rod 17 moves downward, and the upper waste transport chain 16 moves the shaft core P of the intermediate drive sprocket 27. When the fulcrum is displaced upward against the pressing force of the spring 31 and the conveyance amount decreases, the clamping rod 17 returns to the upper movement, and the waste conveyance chain 16 returns to the lower movement. As described above, since the holding rod 17 of the waste transporting device 14 and the waste transport chain 16 move up and down in accordance with the transport amount of the waste that is handed over, the takeover interval with the end of the feed chain can be made as close as possible. Even with a small amount of evacuation, problems due to poor takeover can be prevented. In addition, when a large amount of waste is transported, the waste transport chain moves up and down in accordance with the amount, so that clogging can be prevented.

  According to a second aspect of the present invention, there is provided a detection device (33) for detecting a waste transport load that is greater than or equal to a set amount in the waste transport device (14), and the engine based on the detection result of the detection device (33). The combine according to claim 1, wherein the combiner is connected to operate a stop device or an alarm device.

  If the starting end side of the waste conveying chain 16 is moved upward and beyond a certain level, clogging is predicted, so that the detection device 33 detects it in advance and issues an engine stop or alarm based on the detection result to notify the operator. Therefore, damage to the device can be prevented in advance.

  According to the first aspect of the present invention, the start end side of the waste transport chain 16 moves up and down in accordance with the transport amount of the waste to be handed over. Even with the amount of waste, it is possible to prevent problems due to poor takeover. Further, even when a large amount of waste is transported, the waste transport chain moves up and down in accordance with the amount of the waste so that clogging can be prevented.

  According to the present invention of claim 2, in addition to the effects of the invention of claim 1, when the starting end side of the waste transport chain 16 is displaced upward by a certain amount depending on the transport amount, the detection device 33 detects it. Since the engine is stopped or an alarm is issued, the apparatus can be prevented from being damaged.

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, the structure of the combine shown in FIG. 1 will be described.
On a vehicle body 2 having a traveling crawler (crawler) 1, a mowing unit 3 that can be moved up and down is mounted on the front, and a threshing device (threshing unit) 4 is mounted on the rear. A driving unit including an operation box 5 and a driver's seat 6 is installed on the side of the mowing unit 3, and a Glen tank G is installed behind the driving unit.

  Next, the configuration of the threshing device 4 will be described. A receiving net is stretched along the lower half periphery of the handling chamber 8 in which the handling cylinder 7 is pivotally mounted, and the threshing grains are allowed to leak and are subjected to rocking sorting by a rocking sorting device below. The handling cylinder cover 9 that covers the upper part of the handling chamber 8 is configured to be swingable and openable about an axis that is parallel to the handling cylinder axis direction.

  A feed chain 10 for sandwiching and conveying the cereal and a sandwiching rail 11 provided on the upper side are disposed on the handling port side of the handling chamber 8. The clamping rail 11 is mounted on the side of the barrel cover 9 and swings and opens together with the cover.

  Also, behind the handling chamber 8, a waste transporting device 14 is disposed that sandwiches the two locations on the stock side and the tip side of the waste after threshing and transports it backward, and is sent from the feed chain 10. The incoming waste is received and discharged to the waste cutter C.

  The stocker-side transport device 14a includes a waste transporting chain 16 that turns a ticket along the chain rail 15 and a gripper 17 that is opposed to the lower side. Yes, the tip side transport device 14b is composed of a transport chain 19 with a transport lug 18 and a guide rod 20, and is configured to latch and transport while guiding the tip side of the waste.

  As a drive system for driving the waste transporting device 14 from the handling cylinder shaft 13 protruding rearward from the rear plate 12 of the handling chamber 8, an output pulley 21, a belt 22, an input pulley 23, and a bevel gear fixed to the handling cylinder shaft 13 are used. A stock removal on the stock side via a bevel gear mechanism 25 in the case 24, a waste transmission shaft 26 extending obliquely rearward from the bevel gear case 24, and a chain drive sprocket 27 pivoted on an intermediate portion of the chain rail 15. The transport chain 16 is interlocked to be driven to rotate. The lug transport chain 19 is driven to rotate from the end of the waste transport via the driven sprocket 28, the tip side transmission shaft 29, and the tip side drive sprocket 30 provided in the middle of the chain drive sprocket 27. .

  The stock transporter 14a of the waste transporter 14 is driven from this intermediate part, and the tip transporter 14b is driven from this terminal part. A predetermined open space can be formed, the clogging of the waste can be prevented, and the hand over from the foot chain to the start of the waste transporting apparatus can be performed satisfactorily.

  The starting end side of the chain rail 15 is configured so as to be able to swing up and down around the shaft P of the chain drive sprocket 27 together with the waste transporting chain 16 and is urged downward by a pressing spring 31. The load of the pressing spring 31 is configured so as to be light at the initial stage of rotation of the chain rail and gradually increase from the middle. The holding rod 17 provided on the lower side of the waste conveying chain 16 is also tensioned and held on the chain 16 side via the tension spring 32.

  A detection device (detection switch) 33 for detecting when the chain rail 15 is moved upward by a certain amount due to an increase in the conveyance amount is provided near the spring holder 34, and the detection switch 33 is switched on by the upward movement of the sliding rod 35. In this way, the engine stop mechanism 36 or the alarm device is configured to operate.

  In the embodiment shown in FIG. 5, the holding rod 17 provided on the lower side of the waste conveying chain 16 is configured to move up and down via the tension spring 32 with the start end side as a rotation fulcrum Q, On the other hand, the waste transport chain 16 is configured to move up and down on the start side, so that the transport amount of waste is balanced throughout, eliminating clogging and ensuring stable takeover transport performance. Can do.

  In addition, as shown in FIG. 6, the sheave angle adjusting arm 40 is interlocked and connected via an interlocking wire 39 so that the opening degree of the sheave 38 of the swing sorting shelf 37 can be adjusted in conjunction with the vertical movement of the chain rail 15. If this is done, the sheave opening can be adjusted in a timely manner in accordance with the transport amount of the waste, and the sorting accuracy can be improved. In addition, if it is configured so as to be able to adjust the wind power for sorting tangling, the sorting performance will be further improved.

  When the waste is long, especially in a small combine, the distance between the waste transport device 14 and the right side plate 41 of the dust sorting chamber at the rear of the handling chamber is short. When transporting, the tip part interferes with the right side plate and is not sent backward, which causes a problem of clogging in the waste transporting part. Therefore, as shown in FIG. 2, the scraping star wheel 42 for forcibly scraping the tip portion at a position closer to the right side plate 41 and at the tip side than the tip side transport device 14b A shaft is provided so as to rotate integrally with the shaft. As a result, the scraped star foil forcibly scrapes out the tip of the waste, so that the tip does not interfere with the right side plate and become clogged.

  The embodiment shown in FIG. 7 is configured such that when the swinging cutter C that can be opened and closed is opened with respect to the combiner 2, the cutter switching plate 45 is closed to the draining guide position to the dropper. That is, when the cutter is opened, the cutter switching lever 46 comes into contact with the machine, the switching lever 46 naturally moves from the cutter position (A) to the discharge guide position (B) to the dropper, and the cutter switching plate 45 is closed. When opening the cutter, it is dangerous to work if the cutter switching plate is open. With the above configuration, the cutter can be opened safely, and the work can be performed safely.

  In the oil supply piping structure shown in FIG. 8, an oil supply hose 48 provided with an oil supply nozzle 47 at the tip is provided with a bellows type metal flexible 49 to cover the outside of the hose. With the metal flexible covering the outside of the hose, the hose can be freely bent and a smooth curve can be obtained. It is also optimal for use in the vicinity of an engine part that easily undergoes thermal expansion. In addition, since the metal flexible structure has a sharp cutting surface, there is a possibility that a crack may enter the inside or damage the lubrication hose as it is. Insert a resin inner bushing at both ends of the flexible. In addition, the flexible cut surface does not directly hit the nozzle 47 or the clip 50, and the protection can be ensured.

  As shown in FIG. 9 to FIG. 11, the operation panel 53 on the operation box 5 or the side operation box is provided with a cutting gear shift lever 51 capable of two-step shifting of the cutting pre-processing section to change the traveling speed. Near the HST lever 52 to be controlled, it is arranged so that the two-speed shift position can be switched. These levers are both installed on the same operation panel 53 to improve operability and work efficiency.

  The cutting gearshift lever 51 can be switched along the height guide grooves H, L, and is configured to be raised depending on the degree of lodging of the cereal and the cutting transportation speed can be switched between two levels. The operating range of the cutting gear shift lever 51 is arranged rearward of the front / rear neutral region of the HST lever 52 so as not to wrap in side view, and both levers have substantially the same inclination angle to improve operability. ing. The HST lever guide 54 is configured to include a forward operation path F, a lateral neutral operation path N, and a reverse operation path B of the HST lever, and can easily perform a speed change operation within the reach of the driver's seat. In addition, the cutting gearshift lever arranged in the vicinity thereof can be easily operated within the reach of the operator.

  Also, as shown in FIG. 12, a hand-operated clutch pedal 55 is provided immediately below the combine at the feed chain 10 side, and when the clutch pedal 55 is depressed, the vehicle body is lowered in the direction where the front feed chain side is lowered for a certain period of time. It is tilted and interlocked so that it can perform a series of operations such as “turning in” the work clutch of the feed chain 10 and the threshing unit 4, stopping them, returning to the body horizontally, moving forward at a low speed, and stopping, improving the safety of handling operations and It is intended to improve the workability of the handling work.

Combine side view Top view of main parts of threshing device Side view of the waste transport device Side view of the main part Side view of the main part of the waste transporting device Side view of the main part of the waste transporting device Perspective view of the main part of the waste cutter Perspective view of part of the lubrication nozzle hose The top view which shows the arrangement | positioning relationship between a cutting shift lever and an HST lever Side view Same as above Front view of the combine showing the handling status

Explanation of symbols

1 Traveling crawler (crawler)
2 Car body 3 Harvesting part 4 Threshing part 8 Handling room 14 Waste transporting device
15 Chain rail 16 Exhaust conveyance chain 17 Holding rod 27 Chain drive sprocket 31 Spring 33 Detector P Shaft core

Claims (2)

  A cutting part (3) is provided in the front part of the vehicle body (2) provided with the crawler (1), a threshing part (4) is provided in the rear part of the vehicle body (2), and a handling chamber (8) of the threshing part (4) is provided. ) Is provided with a waste transporting device (14) for sandwiching and transporting the waste after threshing, and the waste transporting chain (16) for turning the waste transporting device (14) along the chain rail (15). ) And a clamping rod (17) provided on the lower side of the waste transporting chain (16), and the shaft core (27) of the chain drive sprocket (27) provided at the intermediate portion of the chain rail (15) ( The start end side of the chain rail (15) swings up and down with P as a fulcrum, and a spring (31) is provided to bias the start end side of the chain rail (15) toward the clamping rod (17). Combine with.   In order to operate the engine stop device or the alarm device based on the detection result of the detection device (33), a detection device (33) for detecting a waste conveyance load of a set amount or more is provided in the waste conveyance device (14). The combine according to claim 1, wherein the combine is connected.

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