JP4624875B2 - Threshing device - Google Patents

Description

  In the present invention, a handling cylinder that is pivotally supported in a handling chamber is constituted by a front main handling cylinder and a rear auxiliary handling cylinder that are arranged concentrically, and the auxiliary handling cylinder is faster than the main handling cylinder. The present invention relates to a threshing device configured to be driven at a speed.

As the threshing device, for example, as disclosed in Patent Document 1, an auxiliary handling cylinder is loosely supported behind a handling cylinder support shaft inserted and connected to the main handling cylinder, and parallel to the handling cylinder support shaft. The front part of the installed drive shaft and the front part of the handle cylinder support shaft are wound and interlocked, and the rear part of the drive shaft and the auxiliary handle cylinder are wound and interlocked so that each winding transmission ratio is different. An arrangement has been proposed in which the handling cylinder is driven at a higher speed than the main handling cylinder.
Japanese Patent Laid-Open No. 11-75508

  The threshing apparatus having the above-described configuration is capable of efficiently separating and recovering the grains stabbed into the cereals and the waste straw by processing the cereals and the threshing processed products that have reached the rear part of the handling room at high speed. However, there is room for improvement in the drive structure.

  In other words, in the above conventional structure, the main drive cylinder and auxiliary handle cylinder are wound around and interlocked with a common drive shaft arranged in parallel with the handle cylinder support shaft, so that a long drive shaft can be driven to rotate in the front and rear directions. It is necessary to equip the front and rear of the drive shaft with a bearing structure that can withstand the load, and the front and rear cover structure prevents the drive shaft from penetrating the side plates at the front and rear of the handling chamber from being wrapped around the drive shaft. It was necessary to equip between the side plates, which increased the number of parts and increased the cost.

  The present invention has been made paying attention to such points, and its main object is to make the transmission structure of the auxiliary handling cylinder simple and inexpensive.

According to a first aspect of the present invention, a handling cylinder pivotally supported in a handling chamber is constituted by a front main handling cylinder and a rear auxiliary handling cylinder arranged concentrically, and the auxiliary handling cylinder is formed by the main handling cylinder. In a threshing device configured to drive at a faster speed,
After the auxiliary threshing drum loosely fitted support behind the inserted linked thresher shaft to the main thresher and transmits power taken out of the rear end of the threshing drum shaft the intermediate rotating member, the intermediate configured to transmit from the rotating member to the auxiliary threshing drum,
The rotating shaft core of the intermediate rotating member is arranged in parallel with the handle cylinder support shaft, and an output wheel is fixed to a rear end portion of the handle cylinder support shaft that protrudes outward from the handle case, An input wheel is provided between the handle case and the output wheel, a boss of the input wheel is extended to the inside of the handle case and connected to the auxiliary handle cylinder, and the output wheel and the intermediate rotation A member, and the intermediate rotating member and the input wheel are respectively wound and interlocked,
The outer peripheral side of the boss of the input wheel is supported by the handling case through a bearing, and the outer peripheral side of the boss extending from the output wheel to the input wheel side is supported by a boss of the input wheel through the bearing. It is characterized in that it is supported on the inner peripheral side .

  According to the above configuration, the intermediate rotation member only needs to be installed in the rear part of the handling chamber so as to be able to rotate freely, and the common drive shaft that drives the front main handling cylinder and the rear auxiliary handling cylinder spans the front and rear side plates. There is no need to pierce through. In addition, it is possible to adopt a structure in which the intermediate rotation member is loosely fitted to a fixed support shaft to support the intermediate rotation member so as to be freely rotatable. The cover structure is also unnecessary.

  Therefore, according to the first invention, the transmission structure of the auxiliary handling cylinder can be manufactured easily and inexpensively with fewer components.

  According to the above configuration, the endless belt such as the endless transmission belt and the endless transmission chain can be inspected, maintained, and replaced with the transmission between the handling cylinder support shaft and the intermediate rotating member and the transmission between the intermediate rotating member and the auxiliary handling cylinder. By carrying out with easy winding transmission, it is possible to achieve high maintainability.

According to a second invention, in the first invention,
The endless belt interlocking seat winding and the intermediate rotating member and the threshing drum shaft, in which are wound on the output rotary wheel to discharge straw conveyor device.

  According to the above configuration, the endless belt for driving the auxiliary handling cylinder can be used for driving the exhaust wall conveying device, and the cost can be reduced by saving the transmission member.

According to a third invention, in the first or second invention,
The front rotary plate is supported by the drive rotary wheel that is pivotally supported on the front side plate of the handling chamber and the passive rotary wheel provided at the front end portion of the handle cylinder support shaft. a support shaft which is passed through and fixed to, and said intermediate rotating member freely idle supported to penetrate fixed to the side plate after the threshing chamber support shaft as well as provided coaxially, 1 both pivot in coupling member It is integrally connected in the shape of a shaft ,
The barrel case that pivotally supports the barrel is configured to swing up and down around a fulcrum parallel to the barrel axis, and the fulcrum of the barrel case and the rotation axis of the intermediate rotation member those it has the same core.

  According to the above configuration, by combining the front and rear support shafts with the connecting member, the bending load acting on each support shaft can be shared and supported, and each support shaft supported in a cantilever manner can be supported by the load. Inclination can be prevented. In addition, since the connecting member that connects both the support shafts does not rotate, it is not always necessary to have a shaft shape. For example, an inexpensive material such as a U-shaped cross section or an L-shaped steel material should be used. Can do.

  According to the above configuration, the fulcrum structure can be simplified by sharing the fulcrum.

Figure 1 is a longitudinal side sectional view of a threshing apparatus mounted in the own demolding combine is shown. The threshing apparatus, the cutting culms lateral falling posture have been sent transportable from cutting unit of FIG outside left in FIG. 1 receives the feed chain 1, figure while inserting the ear portion threshing chamber 2 By receiving and transporting from the left to the right, the receiving net 4 is threshed by the handling cylinder 3 that is pivotally supported in the front-rear and horizontal directions in the handling chamber 2 and stretched along the lower part of the handling chamber. Sort by. The processed material that has leaked the receiving net 4 is dropped and supplied to the first half of the swing sorting unit 5 disposed below the handling chamber 2, and the processed material that has not leaked the receiving net 4 is sent to the end of the handling chamber. It is carried out from the dust mouth 6 and dropped and supplied to the front and rear intermediate portions of the swing sorting portion 5, and the processed material dropped and supplied to the swing sorting portion 5 is received by the sheave case 7 that is long in the front and rear. Using the corrugated gren pan 8, rough chaff sheave 9, fine sorting glen sheave 10, Strollac 12 and the like while swinging and transporting the placed processing object backward (rightward in FIG. 1) In addition to sorting through the sieve, the sorting air supplied from the Kara 13 provided at the front end of the swinging sorting unit 5 toward the rear and upper direction is blown to treat the wind, and the first thing leaked from the glensy sieve 10 is 1 The second thing leaking from the rear part of the chaff sheave 9 and the stroll rack 12 is sorted and collected by the second collecting part 15. After the first item collected in the first collecting unit 14 is laterally fed to the outside by the horizontal screw 16, it is supplied to a collecting unit such as a grain tank, and the second item collected in the second collecting unit 15 is transferred to the horizontal screw. After being laterally fed by 17, a reduction device (not shown) supplies the reduced amount to the front portion of the sheave case 7 and performs a re-sorting process. The lump of straw scraps carried out from the dust feed port 6 and received by the sheave case 7 is loosened by the processing cylinder 11 that is horizontally driven and subjected to sorting by the rear part of the shuffle sheave 9 and the strola rack 12.

In addition, a dust exhaust fan 19 composed of a cross-flow fan positioned below the exhaust wall conveying device 18 is horizontally mounted at a position above the rear portion of the swing sorting unit 5 behind the handling chamber 2. Dust and straw scraps blown out from the mouth 6 and dust dust and straw scraps blown up to the rear upper part of the swing sorting portion 5 by the sorting wind are sucked into the dust exhaust fan 18 and forced to the rear of the machine body from the dust outlet 20. It is supposed to be discharged.

  The handling cylinder 3 is composed of a front main handling cylinder 3F and a rear auxiliary handling cylinder 3R arranged concentrically, and each of the handling cylinders 3 extends horizontally across the front side plate 2f and the rear side plate 2r of the handling chamber 2. Is supported by a barrel support shaft 21 that is supported by the cylinder.

  The main handling cylinder 3F is configured by projecting low-profile teeth 3b on the outer periphery of a large-diameter body 3a connected to the handling cylinder support shaft 21. rpm), and the peripheral speed of the tooth handling tip at this time is 1.8 to 2.0 (m / s).

In addition, the auxiliary handling cylinder 3R is configured by projecting a high-length handling tooth 3d on a small-diameter body 3c mounted on the rear portion of the handling cylinder support shaft 21 so as to be freely rotatable. The tooth handling tip rotation diameter of the trunk 3R is set to the same diameter. Then, the auxiliary thresher 3R are driven at a rotational speed of about 700 (rpm) to be faster than the peripheral speed of the扱歯tip peripheral speed of handling the tooth tip of the auxiliary threshing drum 3R is in the main threshing drum 3F Hereinafter, the drive structure of the barrel 3 will be described.

  As shown in the front view of FIG. 4, a driving shaft 22 that receives engine power is disposed below the front surface of the threshing device, and a driving pulley 23 attached to the driving shaft 22 and a free-moving shaft on the upper front portion of the threshing device. A transmission belt 28 spans the supported drive wheel 24, the passive wheel 25 attached to the front end of the barrel support shaft 21, the intermediate wheel 26, the guide wheel 27, and the like disposed on the front surface of the threshing device. Is wound with three hooks, and the handling cylinder support shaft 21 and the main handling cylinder 3F are driven at the above speed.

Further, an output wheel 30 is fixed to the rear end portion of the handling cylinder support shaft 21, and an input wheel 31 connected to the auxiliary handling cylinder 3R is provided concentrically. The outer peripheral side of the boss 31A of the input wheel 31 is supported on the barrel case 41 via a bearing, and the outer peripheral side of the boss 30A of the output wheel 30 is supported on the inner peripheral side of the boss 31A of the input wheel 31 via a bearing. Yes. Further, a support shaft 32 is penetrated and fixed to the upper rear surface of the threshing device, and an intermediate rotating member 33 formed of a two-stage pulley is loosely supported by a rear projecting portion of the support shaft 32. The small-diameter pulley portion 33a of the intermediate rotation member 33 and the output wheel 30 of the handling cylinder support shaft 21 are wound and interlocked by a transmission belt (endless belt) 34, and the large-diameter pulley portion 33b of the intermediate rotation member 33. And the input wheel 31 of the auxiliary handling cylinder 3R are wound and interlocked by the transmission belt 35, so that the auxiliary handling cylinder 3R is driven at a speed higher than that of the main handling cylinder 3F.

  Here, the drive wheel 24 is loosely supported by a front projecting portion of a support shaft 36 that is fixedly penetrated to the front side plate 2f, and the support shaft 36 and the support shaft 32 of the intermediate rotation member 33 are arranged concentrically. At the same time, both the support shafts 32 and 36 are connected to each other by a connecting member 37 that is long in the front-rear direction to form a single shaft. Thus, by integrating the support shafts 32 and 36 supported in a cantilever manner toward the rear and front, the support shafts 32 and 36 are prevented from being inclined by belt tension.

  As shown in FIGS. 2 and 5, the transmission belt 34 that winds and interlocks the output wheel 30 of the barrel support shaft 21 and the intermediate rotation member 33 is in a fixed position near the feed chain 1 (the support structure is It is also wound around an output rotating wheel 38 provided in the output rotating wheel 38 so that the power taken out from the output rotating wheel 38 is transmitted to the exhaust straw conveying device 18 via the bevel gear case 39. It has become.

  The handling cylinder 3 is pivotally supported by a handling cylinder case 41 configured to be rotatable up and down around a fulcrum P that is concentric with the axes of the support shafts 32 and 36. The handling cylinder 41 is hydraulically supported. By lifting and swinging by the cylinder 42, the handling chamber 2 can be opened to expose the handling cylinder 3 and the receiving mesh 4, the handling chamber 2 can be cleaned, the handling teeth 3 b and 3 d can be repaired and replaced, and the receiving mesh 4. Can be easily cleaned and replaced.

  As shown in FIG. 6, when the handling case 41 is lifted and lifted and the output wheel 30 and the input wheel 31 move upward, the output wheel 30 winds and locks the upper path portion of the endless transmission belt 34. In this case, the pair of tension wheels 43 and 44 that guide the endless belt 34 meanderingly move against the spring biasing force to absorb the change in the belt winding length. . The transmission belt 35 linking the intermediate rotation member 33 and the input wheel 31 is wound around a fixed winding path regardless of whether the handling case 41 is raised or lowered. 45 is not displaced.

  [Other Examples]

( 1 ) As the endless belt used for the winding transmission, a chain can be used in addition to the transmission belts 34 and 35 as described above.

Longitudinal side view of threshing device Plan view across the main part of the threshing device Longitudinal side view of the rear part of the barrel Front view of threshing device Rear view of threshing device Rear view of the barrel riser

2 Handling chamber 2f Front side plate 2r Rear side plate 3 Handling cylinder 3F Main handling cylinder 3R Auxiliary handling cylinder 18 Waste feeder transport device 21 Handling cylinder support shaft 24 Drive rotating wheel 25 Passive rotating wheel
30 output wheels
30A output wheel boss
31 input wheels
31A Input wheel boss 32 Support shaft 33 Intermediate rotating member 34 Endless belt 36 Support shaft 37 Connecting member 38 Output rotating wheel 41 Cylinder case
Support point of P barrel case

Claims (3)

The handling cylinder pivotally supported in the handling chamber is composed of a front main handling cylinder and a rear auxiliary handling cylinder arranged concentrically, and the auxiliary handling cylinder is driven at a higher speed than the main handling cylinder. In a threshing device configured to:
After the auxiliary threshing drum loosely fitted support behind the inserted linked thresher shaft to the main thresher and transmits power taken out from the rear end of the threshing drum shaft the intermediate rotating member, the intermediate configured to transmit from the rotating member to the auxiliary threshing drum,
The rotating shaft core of the intermediate rotating member is arranged in parallel with the handle cylinder support shaft, and an output wheel is fixed to a rear end portion of the handle cylinder support shaft that protrudes outward from the handle case, An input wheel is provided between the handle case and the output wheel, a boss of the input wheel is extended to the inside of the handle case and connected to the auxiliary handle cylinder, and the output wheel and the intermediate rotation A member, and the intermediate rotating member and the input wheel are respectively wound and interlocked,
The outer peripheral side of the boss of the input wheel is supported by the handling case through a bearing, and the outer peripheral side of the boss extending from the output wheel to the input wheel side is supported by a boss of the input wheel through the bearing. A threshing device characterized by being supported on the inner peripheral side of the threshing. It said endless belt to be wound interlocked with the threshing drum shaft and said intermediate rotating member, threshing apparatus according to claim 1 wherein that is wound on the output rotary wheel to discharge straw conveyor device. The front rotary plate is supported by the drive rotary wheel that is pivotally supported on the front side plate of the handling chamber and the passive rotary wheel provided at the front end portion of the handle cylinder support shaft. a support shaft which is passed through and fixed to, and said intermediate rotating member freely idle supported to penetrate fixed to the side plate after the threshing chamber support shaft as well as provided coaxially, 1 both pivot in coupling member It is integrally connected in the shape of a shaft ,
The barrel case that pivotally supports the barrel is configured to swing up and down around a fulcrum parallel to the barrel axis, and the fulcrum of the barrel case and the rotation axis of the intermediate rotation member threshing device according to claim 1 or 2, wherein are the same core.

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