JP2009240212A - Grain-transporting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To well perform grain taking over in a grain taking over part of a screw conveyor for transverse transportation to a screw conveyor for longitudinal transportation, and to reduce the residual amount of grains in the taking over part when completing grain recovering work. <P>SOLUTION: Both screw shafts 21 and 24 of screw conveyors 23 and 26 for the transverse transportation and the longitudinal transportation are extendedly installed so as to cross, and a transmission case 30 is installed over the end on the downstream side of the screw conveyor 23 for the transverse transportation and the end on the lower side of the screw conveyor 26 for the longitudinal transportation. Both the conveyors are adjacently arranged in a positional relationship so as to shorten the distance between shaft centers X1 and X2 of the screw shafts in the crossing part thereof from the distance which is the sum of the radius of the screw 22 for the transverse transportation and the radius of the screw 25 for the longitudinal transportation, and at least one of the screws in the crossing part is notched or not installed so that both the screws do not mutually interfere. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention includes a screw conveyor for horizontal conveyance for horizontally conveying a processed product after threshing and a screw conveyor for vertical conveyance for cerealing the grain inherited from the screw conveyor for horizontal conveyance, and the driving force of the screw conveyor for horizontal conveyance Between the lower end of the vertical conveying screw shaft of the vertical conveying screw conveyor and the lower end of the vertical conveying screw conveyor of the horizontal conveying screw conveyor. It is related with the grain conveyance apparatus provided in.

  As shown in FIG. 10 of Patent Document 1, the grain transport device as described above is vertically transported from the first screw 16 constituting the screw conveyor for horizontal transport of the grain recovered in the first recovery unit. That is delivered to a cerealing device 17 that constitutes a screw conveyor for feeding and fed to a collection unit such as a grain tank, or as shown in FIG. The grains collected in the collecting section are transferred from the horizontal conveying screw 20A constituting the horizontal conveying screw conveyor to the vertical conveying screw 20B constituting the vertical conveying screw conveyor, lifted, and refluxed into the handling chamber. There is something.

  In the ones of Patent Document 1 and Patent Document 2, the screw conveyors for the horizontal conveyance and the vertical conveyance screw conveyor are not intersected with each other via a bevel gear provided at the shaft ends of both screw shafts. And a vertical conveyor screw conveyor. The bevel gears provided at the shaft ends of both screw shafts are arranged in the transport path, so that not only the grain passage is narrowed, but also the lateral body screw and the vertical transport screw are separated from each other by the upper body. Since the grain was transferred from the conveying screw conveyor to the vertical conveying screw conveyor, the effect of transferring the grains from the horizontal conveying screw conveyor to the vertical conveying screw conveyor was insufficient, and the horizontal conveying screw was excessive. There is a disadvantage that a large pushing load is applied and a large amount of unrecovered grains remain on the screw conveyor for horizontal conveyance at the end of grain lifting.

Moreover, the thing of patent document 3 WHEREIN: The grain conveyance lower end side of the said horizontal conveyance screw axis | shaft crosses the horizontal conveyance screw axis | shaft arrange | positioned in the horizontal direction, and the vertical conveyance screw axis | shaft arranged in the up-down direction. And extending the lower end of the longitudinal conveying screw shaft to a position below the lateral conveying screw shaft, and extending the portion to a position exceeding the longitudinal conveying screw shaft. A transmission case is provided at the lower end of the grain conveying lower end and the lower end of the vertical conveying screw conveyor, and the driving force of the lateral conveying screw conveyor is transmitted to the vertical conveying screw conveyor in the transmitting case. The horizontal conveying screw conveyor and the vertical conveying screw conveyor are connected to each other between an axial center of the horizontal conveying screw shaft and the vertical conveying screen. -The distance between the shaft axis and the axis of the horizontal conveying screw shaft to the outer shape of the horizontal conveying screw and the distance from the axis of the vertical conveying screw shaft to the outer shape of the vertical conveying screw. They are arranged in a positional relationship that is longer than the sum of the radius and the distance.
JP-A-2005-245241 JP 2005-270054 A JP 2006-55058 A

  In the thing of patent document 3, since the rotation blade for large diameter relay sending was provided in the conveyance lower end side part of the horizontal conveyance screw, it is between the axis | shafts in the cross | intersection part of the horizontal conveyance screw axis and the vertical conveyance screw axis. The distance was long, and there was a disadvantage that a relatively large amount of unrecovered grains remained between the shafts at the end of the lifting of the grains.

  An object of the present invention is to enable good grain inheritance at a grain inheritance portion between a horizontal screw conveyor and a vertical conveying screw conveyor, and at the end of grain recovery, the grain at the inheritance portion. An object of the present invention is to provide a grain transport device that can reduce the residual amount of slag.

  In order to achieve the above object, according to the first aspect of the present invention, the screw shaft of the horizontal conveying screw conveyor arranged in the horizontal direction intersects with the screw shaft of the vertical conveying screw conveyor arranged in the vertical direction. As described above, the lower end of the horizontal conveying screw shaft is extended to a position beyond the vertical conveying screw shaft, and the lower end of the vertical conveying screw shaft is used for the horizontal conveying. The transmission case is extended to a lower position beyond the screw shaft, and a transmission case is provided across the lower end of the grain conveying lower conveyor and the lower end of the vertical conveying screw conveyor. A transmission device for transmitting the driving force of the horizontal conveying screw conveyor to the vertical conveying screw conveyor is housed therein, and the horizontal conveying screw conveyor and the front The distance between the axis of the horizontal conveying screw shaft and the axis of the vertical conveying screw shaft at the intersecting portion is set so that the distance between the vertical conveying screw conveyor and the axis of the vertical conveying screw shaft is Proximately arranged in a positional relationship that is shorter than the sum of the radius to the outer shape of the screw and the radius from the axial center of the vertical conveying screw shaft to the outer shape of the vertical conveying screw, and for the lateral conveying at the intersection It is characterized in that at least one of the screw and the longitudinal conveying screw is notched or not provided so that the screws do not interfere with each other.

  According to the invention which concerns on Claim 1, the grain of the screw shaft for horizontal conveyances so that the screw shaft of the screw conveyor for horizontal conveyance arranged in the horizontal direction and the screw shaft of the screw conveyor for vertical conveyance arranged in the vertical direction may intersect. The lower end of the grain conveying side extends to a position beyond the vertical conveying screw shaft, and the lower side end of the vertical conveying screw shaft extends to a lower position beyond the lateral conveying screw shaft. As a result, the screws at the joint can be disposed close to each other, and the end of the screw can be provided up to a position beyond the intersection of the screw shafts, so that a sufficient transport path can be secured.

  According to the invention of claim 1, the distance between the axis of the horizontal conveying screw shaft and the axis of the vertical conveying screw shaft at the intersection of the horizontal conveying screw conveyor and the vertical conveying screw conveyor is Closely arranged in a positional relationship that is shorter than the sum of the radius from the axis of the conveying screw shaft to the outer shape of the lateral conveying screw and the radius from the axis of the vertical conveying screw shaft to the outer shape of the vertical conveying screw Since at least one of the transverse conveying screw and the longitudinal conveying screw at the intersection is not cut or provided so that the screws do not interfere with each other, the transverse conveying screw and the longitudinal conveying screw are not provided. The screw conveyors can be placed close to each other without interfering with each other. There is an advantage that the grains by the drive force can be properly fed fried inherited from the lateral conveying screw conveyor in the vertical conveying screw conveyor that.

  In addition, since the distance between the shafts at the intersection of the horizontal conveying screw shaft and the vertical conveying screw shaft that transports the grains horizontally is short, there is almost no idle feed distance, and residual grains at the end of conveyance can be reduced. There is an advantage that cleaning and maintenance after the work can be easily performed.

  In the invention according to claim 2 in the present invention, in the invention according to claim 1, the horizontal conveying screw shaft is disposed closer to the vertical conveying screw shaft than the radial distance of the vertical conveying screw, The part of the vertical conveying screw that overlaps the vertical conveying screw at the lower end of the conveying part is eliminated, and the vertical conveying screw part of the vertical conveying screw through which the horizontal conveying screw shaft passes is deleted.

The invention according to claim 2 has the following effects in addition to the effects of claim 1.
In the invention according to claim 2, since the screw shaft for horizontal conveyance and the screw shaft for vertical conveyance are disposed in close proximity to each other, almost the entire conveyance path in the transfer section has conveyance driving force. Therefore, it is possible to transfer the grain well from the horizontal conveying screw conveyor to the vertical conveying screw conveyor.

  In the invention according to claim 3 of the present invention, in the invention according to claim 1, the transmission device is provided with a first bevel gear at one shaft end portion of the lateral conveying screw shaft and the longitudinal conveying screw shaft, A shaft parallel to the shaft is provided, and the second bevel gear and the first bevel gear provided on the parallel shaft are engaged with each other, and power is transmitted between the parallel shaft and one shaft by a gear or an endless rotating body. is there.

  In the invention which concerns on Claim 3, it can provide outside the conveyance path | route of the transmission device which transmits the drive force of the said screw conveyor for horizontal conveyance to the said screw conveyor for vertical conveyance, and the transmission case which accommodates this, and is enough A transmission device can be provided in a state in which a simple conveyance path is secured.

  According to a fourth aspect of the present invention, in the invention according to the third aspect, the transmission case is provided with a separation lid that can be removed toward the outside in the axial direction of the parallel shaft.

The invention according to claim 4 has the effect of claim 3.
In the invention which concerns on Claim 4, the maintenance of the transmission which transmits motive power from the screw shaft for horizontal conveyance to the screw shaft for vertical conveyance can be easily performed by removal of a separation lid.

  The combine will be described. As shown in FIG. 1, the combine is applied to a traveling machine body 2 having a pair of left and right crawler type traveling devices 1, a cutting pretreatment unit 3 connected to a front part of the traveling machine body 2 so as to be swingable up and down, and a traveling machine body 2. Mounted threshing device 4, drainer processing unit 5 connected to the rear of threshing device 4, boarding operation unit 6 formed on the front side of the right half of traveling machine body 2, and rear side of the right half of traveling machine body 2 It is comprised by the Glen tank 7 etc. which were mounted in. In the pre-cutting processing unit 3, the planted cereal is harvested and the cereal after harvesting is conveyed toward the threshing device 4. The processed product is subjected to a sorting process, and the grain obtained by the sorting process is stored in the glen tank 7 while the waste straw after the threshing process is discharged to the outside by the waste straw processing unit 5. It has become.

  As shown in FIG. 1, the grain stored in the Glen tank 7 is conveyed rearward by the bottom screw 8, and is loaded on a loading platform such as a bag carrier by an unloader 9 provided at the rear end of the Glen tank 7. It can be changed. The unloader 9 includes a vertical screw conveyor 9A, a horizontal screw conveyor 9B connected to the upper end of the vertical screw conveyor 9A so as to swing up and down around a horizontal axis, and a discharge port formed at the tip of the horizontal screw conveyor 9B. 9C.

  Next, the configuration of the threshing device 4 will be described. As shown in FIG. 2, the threshing device 4 is processed by a handling cylinder 12 and a handling cylinder 12 that apply a handling process to the harvested and carried cereals that are held by the threshing feed chain 10 and conveyed into the handling chamber 11. The receiving net 13 that leaks the cereal grains downward, and the swing sorting part 14 is provided below the receiving net 13. The swing sorting unit 14 receives a processed product including grains leaked from the receiving net 13 and performs specific gravity sorting while sending the processed product backward, and the processed product sent from the Glen pan 15 and the latter half of the handling chamber 11. A chaff sheave 16 that receives the processed material leaking through the receiving net 13 from the unit and drops the grain, and a grain sheave 17 that mainly selects the grain below the chaff sheave 16 and leaks it downward. There is provided a tang 18 for allowing the sorting wind to act on the processed material falling to the grain sieve 17 so as to add the wind sorting action.

  In addition to the above-described configuration, the swing sorting unit 14 includes the first grain transport device 19 that transports the grain leaking from the grain sieve 17 to the Glen tank 7 by 19B, and the first grain transport device 19. The second grain transport device 20 for returning the second crop, which is a mixture of chopped grains and branch-branched grains, sent by the sorting wind on the rear side of the machine to the handling chamber 11 by the vertical conveyor screw conveyor 26, and the fuselage A dust exhaust fan 42 that discharges sawdust and the like outside the machine is arranged and configured at the rear end.

  Next, the structure of the second grain transport device 20 will be described. As shown in FIG. 3, the second grain conveying device 20 is arranged on the screw shaft 21 for horizontal conveying disposed along the left and right lateral direction perpendicular to the barrel axis below the swing sorting unit 14. A screw conveyor 23 provided with a screw 22 and a screw 25 for a vertical transfer screw shaft 24 that receives a second product from the screw conveyor 23 for horizontal transfer and returns to the inside of the handling chamber 11 are provided with a screw 25. The vertical conveyor screw conveyor 26, a rotary blade 27 attached to the upper end of the vertical conveyor screw conveyor 26 so as to be integrally rotatable, and a discharge port 28 formed facing the rotary blade 27.

  As shown in FIG. 3, the lower side of the grain conveyance of the horizontal conveyance screw shaft 21 so that the screw shaft 21 of the horizontal conveyance screw conveyor 23 and the screw shaft 24 of the vertical conveyance screw conveyor 26 intersect in front view. The end portion is extended to a position beyond the vertical conveying screw shaft 24 and the lower end portion of the vertical conveying screw shaft 24 is extended to a lower position beyond the lateral conveying screw shaft 21 to be laterally conveyed. The distance between the axial core X1 of the horizontal conveying screw shaft 21 and the axial core X2 of the vertical conveying screw shaft 24 at the intersecting portion of the screw conveyor 23 for vertical conveying and the screw conveyor 26 for vertical conveying is the screw axis for horizontal conveying. The radius from the axis X1 of 21 to the outer shape of the screw 22 for horizontal conveyance, the radius from the axis X2 of the screw shaft 24 for vertical conveyance to the outer shape of the screw 25 for vertical conveyance, Is it arranged close to each other in a positional relationship that is shorter than the sum distance, and cuts at least one of the lateral conveyance screw 22 and the vertical conveyance screw 25 at the intersection so that the screws do not interfere with each other? In FIG. 3, immediately before the horizontal conveying screw shaft 21 is brought into contact with the vertical conveying screw shaft 24 so that the horizontal conveying screw shaft 21 is positioned within the radial range of the vertical conveying screw 25 in FIG. It is arranged close to the position, the screw portion at the position where it overlaps with the vertical conveying screw 25 at the lower end of the conveying side of the horizontal conveying screw 22 is eliminated, and the horizontal conveying screw shaft 21 in the vertical conveying screw 25 passes. The vertical conveyance screw part is deleted. The deletion range is a dimension slightly longer than the diameter of the lateral conveying screw shaft 21.

  A transmission case 30 is provided that houses the transmission device 29 across the lower end of the grain conveying lower conveyor 26 and the lower end of the vertical conveying screw conveyor 26. As shown in FIG. 3, the transmission device 29 has a first bevel gear at the lower end of the vertical conveying screw shaft 24 so that the driving force of the horizontal conveying screw conveyor 23 is transmitted to the vertical conveying screw conveyor 26. 31 and a second bevel gear 33 that meshes with the first bevel gear 31 is provided on a shaft 32 that is provided in parallel with the lateral conveying screw shaft 21, and extends beyond the parallel shaft 32 and the vertical conveying screw 22. Gears 34 and 35 that mesh with the shaft end of the lateral conveying screw shaft 21 are provided.

  The bevel gears 31 and 33 and the gears 34 and 35 are supported by the transmission case 30, and a vertical conveyance screw case 36 that accommodates the vertical conveyance screw 25 extends upward from the transmission case 30. An outlet case 37 is attached to the upper end of the vertical conveying screw case 36, and the outlet case 37 is attached to the threshing side plate 4A.

  The vertical conveying screw case 36 is composed of left and right split cases 36A and 36B. The outer split case 36A is detachably attached by bolts, and the outer case 36A is removed during maintenance to remove the vertical conveying screw 25 from the vertical conveying screw 25. Maintenance and inspection work is easier.

  A separation lid 38 is provided on the lateral outer wall surface of the transmission case 30 so as to be removable outward in the axial direction of the parallel shaft 32.

  A treatment material 41 having a porous rough surface in contact with the second object is provided on the inner surface of the outer case 36 </ b> A, and a configuration is adopted to remove the branch rachis and the like. As shown in FIG. 3, the treatment material 41 is a non-woven fabric formed on a single plate, and is intermediate between the vertical conveying screw case 36 erected vertically in which the second product is cerealed. The processing material 41 is adhered to the position. The second basket, which is lifted by the vertical conveying screw conveyor 26, is brought into contact with the porous rough surface of the treatment material 41 in the middle of ascending, so that the branches and the like protruding from the surface of the kite are caught or rubbed. Will be scraped off from the bag.

FIG. 5 is a front view of the drive sprocket 43 of the crawler type traveling device 1, and FIG. 6 is a cross-sectional view of the main part of FIG. The drive sprocket 43 will gradually wear out over time. Conventionally, the amount of wear has been exchanged visually. However, it was hard to say that it was not always replaced at an appropriate replacement time by visual inspection.
FIG. 5 shows that a step S is formed at a position that becomes the use limit so that the use limit (replacement time) due to wear of the drive sprocket 43 can be understood, and if the wear exceeds the step S, the use limit is exceeded. Thus, the wear judgment reference is displayed so that the drive sprocket 43 is replaced.
The step portion S shown in FIG. 5 is formed so that the outer peripheral portion is slightly thicker than the rotation center side.

  You may form the thickness of an outer peripheral part rather than the step part S thinner than the rotation center side. A cut line may be provided as a use limit line instead of the stepped portion, and a triangular recess mark V is engraved as shown in FIG. 7, and it is determined that the use limit has been reached when the bottom of the triangular recess is exceeded. You may comprise.

[Another embodiment]
Hereinafter, other embodiments of the present invention will be listed.

(A) In the present invention, the horizontal conveyance screw shaft 21 may be somewhat separated from the vertical conveyance screw shaft 24, but the axis of the horizontal conveyance screw shaft 21 at the intersection of the screw shafts 21, 24 in a front view. The distance between the core X1 and the axis X2 of the vertical conveying screw shaft 24 is the radius from the axial core X1 of the horizontal conveying screw shaft 21 to the outer shape of the horizontal conveying screw 22 and the axis of the vertical conveying screw shaft 24. Closely arranged in a positional relationship shorter than the sum of the radius from the core X2 to the outer shape of the vertical conveying screw 25, the screws of the horizontal conveying screw 22 and the vertical conveying screw 25 at the intersection do not interfere with each other. Thus, both the screws 22, 25, or any one of the screws 22, 25 are configured so that at least one of the screws 22, 25 is cut away. It may be.

(B) A first bevel gear is provided at the shaft end of the horizontal conveying screw shaft 21 and an axis parallel to the vertical conveying screw shaft 24 is provided. The second bevel gear provided on the parallel shaft and the first bevel gear are engaged with each other. In addition, the parallel shaft and the vertical conveying screw shaft 24 may be attacked so as to transmit gears.
(C) Instead of the gear transmission gear, power may be transmitted by an endless rotating body.
(D) Although the embodiment shown in FIG. 4 is for the second grain transport device 20, the present invention relates to the first grain transport device 19, or the bottom screw 8 and unloader 9 of the Glen tank 7. The present invention can also be applied to a grain conveying device constituted by the vertical screw conveyor 9A.

Combine side view Longitudinal side view showing threshing device Longitudinal front view of the second object conveyor Longitudinal side view of the second object conveyor Front view of drive sprocket Cross section of the main part of the drive sprocket Front view showing the display section of the usage limit of another form of drive sprocket

Explanation of symbols

DESCRIPTION OF SYMBOLS 21 Screw screw for horizontal conveyance 22 Screw for horizontal conveyance 23 Screw conveyor for horizontal conveyance 24 Screw screw for vertical conveyance 25 Screw for vertical conveyance 26 Screw conveyor for vertical conveyance 29 Transmission device 30 Transmission case 31 1st bevel gear 32 Parallel shaft 33 2nd Bevel gear 34 Gear 35 Gear 38 Separation cover X1 Shaft core for horizontal transport X2 Shaft core for vertical transport

Claims (4)

The lower side end of the grain conveyance lower end of the horizontal conveyance screw shaft is arranged so that the screw axis of the horizontal conveyance screw conveyor arranged in the horizontal direction intersects with the screw axis of the vertical conveyance screw conveyor arranged in the vertical direction. Extending to the position beyond the vertical conveying screw shaft and extending the lower end of the vertical conveying screw shaft to the lower position beyond the horizontal conveying screw shaft, the grain of the horizontal conveying screw conveyor A transmission case is provided across the lower end of the grain conveying lower end and the lower end of the vertical conveying screw conveyor, and the driving force of the lateral conveying screw conveyor is transmitted to the vertical conveying screw conveyor in the transmission case. The horizontal transfer screw conveyor and the vertical transfer screw conveyor are connected to each other at the intersection. The distance between the axis of the shaft and the axis of the vertical conveying screw shaft is determined by the radius from the axis of the horizontal conveying screw shaft to the outer shape of the horizontal conveying screw and the axis of the vertical conveying screw shaft. The proximity screw is disposed in a positional relationship that is shorter than the sum of the radius from the core to the outer radius of the vertical conveying screw, and at least one of the horizontal conveying screw and the vertical conveying screw at the intersection is both A grain conveying device characterized in that it is not provided or not provided so as not to interfere with each other. The screw portion at a position where the horizontal conveying screw shaft is disposed closer to the vertical conveying screw shaft than the radial distance of the vertical conveying screw and overlaps the vertical conveying screw at the lower end of the conveying side of the horizontal conveying screw. The grain conveyance device according to claim 1, wherein the vertical conveyance screw portion of the vertical conveyance screw in which the horizontal conveyance screw shaft passes is deleted. The transmission device is provided with a first bevel gear at one shaft end of the lateral conveyance screw shaft and the vertical conveyance screw shaft, and an axis parallel to the other axis. The grain conveying device according to claim 1 or 2, wherein the bevel gear and the first bevel gear are engaged with each other, and the parallel shaft and one shaft are configured to transmit power by a gear or an endless rotating body. The grain conveyance device according to claim 3, wherein a separation lid is provided on the transmission case so as to be removable outward in the axial direction of the parallel shaft.

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