JP2009178044A - Combine harvesting gear transmission - Google Patents

Abstract

[PROBLEMS] To improve the efficiency of the cutting operation, reduce the manufacturing cost, and provide it at a low cost.
An output gear (10) meshed with an input gear (9) and provided with a meshing claw (10a) at a lower portion is rotatably attached to an output shaft (11) and loosely fitted to the output shaft (11). An upper meshing claw (12a) is provided at the upper end of the support pipe (13), and an intermediate gear (12) having a claw clutch (12b) at the lower part is attached to the lower end of the support pipe (13). 12), a transmission gear (16) having a lower claw clutch (16a) is provided below, and the intermediate gear (12) and the transmission gear (16) are interlocked by a transmission transmission path (18a). 12b) The slider (15a) having an upper claw portion (15b) meshing with the lower claw clutch (16a) and a slider (15a) meshing with the lower claw clutch (16a) can freely slide on the output shaft (11) in the axial direction. Provided.
[Selection] Figure 1

Description

  The present invention relates to a harvesting transmission for a combine.

As shown in Patent Document 1, in a combine that transmits engine power via a counter case to a mission case that drives a traveling crawler, a cutting unit, and a threshing unit, a cutting shift that changes the driving speed of the cutting unit In the case of a specification with a mechanism, a technique is known in which a pouring mechanism and a high-speed cutting mechanism are provided on the counter case, and in the case of a specification without a cutting speed change mechanism, the speed of the pouring mechanism is made faster than the specification with the cutting mechanism. It has been.
JP 2005-124414 A

  When setting a specification for providing a cutting speed change mechanism for changing the driving speed of the cutting part that cuts the cereal and a specification for reducing the price without providing this cutting speed change mechanism, the manufacturing cost of these two specifications is reduced. Reduction becomes difficult. Further, in the specification provided with the cutting and shifting mechanism, if this shifting is not performed smoothly, there is a problem that the efficiency of the cutting operation is reduced.

In order to solve the above problems, the present invention takes the following technical means.
That is, the cutting input gear case (7) of the cutting device (3) for cutting the cereals receives the lateral input shaft (8) having the input pulley (8a) and inputs it to a predetermined position of the input shaft (8). A gear (9) is mounted, meshed with the input gear (9), and an output gear (10) provided with a meshing claw (10a) at the lower portion is rotatably mounted on a vertical output shaft (11). 11) a support pipe (13) is rotatably fitted to the support pipe (13), and an upper meshing claw (12a) that meshes with the meshing claw (10a) is provided at the upper end of the support pipe (13). An intermediate gear (12) having a claw clutch (12b) at the lower part is attached to the lower end of the lower claw clutch, and a lower claw clutch is provided at a predetermined interval at a position below the intermediate gear (12) on the output shaft (11). A transmission gear (16) having (16a) is rotatably provided. The intermediate gear (12) and the transmission gear (16) are interlocked by a transmission transmission path (18a), and the upper claw portion (15b) engaged with the claw clutch (12b) and the lower claw clutch (16a) are engaged with each other. This is a combine cut gear transmission characterized in that a slider (15a) having a claw portion (15c) is provided on the output shaft (11) only in the axial direction.

  According to the present invention, the cutting gear shifting operation can be performed smoothly, the efficiency of the cutting operation can be improved, and the specifications including the cutting gear shifting mechanism and the specifications not including the cutting gear shifting mechanism can be easily combined. Can be reduced and can be provided at low cost.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
At the front part of the traveling chassis 2 of the combine 1, there is a reaping device 3 that harvests napped grain pods. The grain storage tank 5 which receives supply of a grain and temporarily stores is mounted.

  As shown in FIG. 5, a traveling device 2 a in which a pair of left and right traveling crawlers 2 b traveling on the soil surface is stretched is disposed below the traveling chassis 2 of the combine 1. A threshing device 4 is placed. The napped cereals are reaped by the reaping device 3 at the front part of the traveling chassis 2 and transferred to the upper rear part, and threshing is carried out while being nipped and transferred by the feed chain 4a of the threshing device 4 and the clamping ridge 4b. The threshed and selected grain is supplied into the grain storage tank 5 disposed on the right side of the threshing device 4 and temporarily stored.

  As shown in FIGS. 1 to 4, the rotational drive of the reaping device 3 causes the rotational power of the engine 6 to move laterally from the engine pulley to the upper portion of the reaping input gear case 7 via the belt, It is configured to be input via an input pulley 8a that is pivotally supported at one end of the input shaft 8 and is pivotally supported by the left and right bearings 7a.

  A horizontal input shaft 8 having an input pulley 8 a is supported on the cutting input gear case 7, and the input gear 9 is attached to a predetermined position of the input shaft 8. Then, the output gear 10 that meshes with the input gear 9 and is provided with a meshing claw 10a at the lower portion is rotatably attached to the vertical output shaft 11. Further, a support pipe 13 is rotatably fitted to the output shaft 11, and an upper meshing claw 12 a that meshes with the meshing claw 10 a is provided at the upper end portion of the support pipe 13. An intermediate gear 12 having a claw clutch 12b at the bottom is attached to the lower end of the support pipe 13. Further, a transmission gear 16 having a lower pawl clutch 16a is rotatably provided at a predetermined interval at a position below the intermediate gear 12 on the output shaft 11. The intermediate gear 12 and the transmission gear 16 are interlocked by a transmission transmission path 18a including an upper transmission gear 17a, a lower transmission gear 17b, and a transmission shaft 18 that supports them. A slider 15a having an upper claw portion 15b that engages with the claw clutch 12b and a lower claw portion 15c that engages with the lower claw clutch 16a is provided on the output shaft 11 so as to be slidable only in the axial direction.

  This configuration facilitates switching, handling, and assembly during shifting. Further, by removing the support pipe 13, the intermediate gear 12, the upper transmission gear 17a, the lower transmission gear 17b, the transmission shaft 18, the transmission gear 16, and the slider 15a and fixing the output gear 10 to the output shaft 11, cutting Since it can be rearranged to a cutting device without a speed change mechanism, it is possible to reduce the production cost in the production of parts.

  As shown in FIG. 5, the cutting device 3 is provided at the front portion of the traveling chassis 2, and the cutting device 3 has a narrow guide 19 that separates napped grains from the front portion, and each weed body 20, Each pulling device 21 that raises napped corn straw, each scavenging device 23 of the corn straw pick-up transfer device 22 that scrapes the raised corn straw, and a cutting blade device 24 that cuts the scraped corn straw The reaping device 3 is composed of the feed chain 4a of the threshing device 4 by nipping and transferring the harvested cereal, and the root and tip transfer devices 26 and 27 of the cereal scraping and transferring device 22 for delivering to the clamping ridge 4b. Is provided. The mowing device 3 is moved up and down with respect to the soil surface by a telescopic cylinder 28 that is hydraulically driven.

  A support pipe rod 30 provided at the upper end portion of the support rod 29 inclined from the front lower part to the rear upper part of the cutting device 3 is rotatably supported by a support device 31 provided on the upper side surface of the traveling chassis 2. When the telescopic cylinder 28 is operated, the reaping device 3 is rotated up and down together with the support rod 29.

  In the culm transfer path formed by the culm scraping transfer device 22 of the reaping device 3, the presence or absence of the supply of the cereal to the threshing device 4 is performed by contacting the culm that is harvested and transferred. A cereal sensor 3a for detection is provided.

  As shown in FIG. 5, an operation device 32 for starting and stopping the combine 1, and adjusting each part, and a cockpit 33 are provided at the front of the grain storage tank 5 side. The engine 6 is placed below the seat 33.

  In the transmission path of the transmission mechanism 34a in the traveling mission case 34 mounted on the front end portion of the traveling chassis 2, a potentiometer type vehicle speed sensor 34b for detecting the traveling vehicle speed based on the output is provided.

  On the rear side of the grain storage tank 5 that discharges the grains stored in the grain storage tank 5 to the outside of the machine, as shown in FIG. Discharge with a vertical orientation, which is mounted so as to be swivelable. A discharge spiral 36a for discharging the grain to the outside of the combiner 1 is provided at the upper end of the discharge support cylinder 35 so as to be extendable. The auger 36 is disposed in the front-rear direction so as to be telescopic, pivotable up and down, and pivotable left and right.

  As shown in FIGS. 6 and 7, a groove 2 c is provided on the front side of the traveling chassis 2. Between the groove 2 c and the front side surface of the operating device 32, on the upper side of the lower front cover 33 a, A substantially L-shaped front cover 33b is provided. The lower end portion of the front cover 33b is inserted into the groove 2c on the front side of the traveling chassis 2, and the upper end portion is attached to the front side surface of the operating device 32 with bolts, nuts, and the like, and is detachable. It is the structure provided in. 32a is a main transmission lever, and 32b is an operation lever.

This facilitates washing with water and removing mud, thereby facilitating cleaning, improving maintainability, reducing weight, and reducing the number of parts.
As shown in FIG. 8, a radiator cover 37 is provided outside the engine 6, and the radiator cover 37 is provided with a dustproof rotary dustproof screen 37 a. A drive motor 37b is provided at the front portion, and reinforcing ribs 37c are provided at the outer peripheral portion of the radiator cover 37 and the substantially central portion in the vertical direction. Reference numeral 37d indicates a rotation locus of the cooling fan of the engine 6.

  As a result, a large amount of soot and dust adhere to the lower portion of the radiator cover 37, thereby preventing the cooling performance of the radiator from being lowered, and reducing the wind speed and preventing turbulence.

  As shown in FIGS. 9 and 10, the main transmission lever 32a, the front end portion of the upper side surface of the center monitor 38, the upper front end portion of the cutting upper transmission case 39, and the front end portion of the weeding body 20 are the front side. It is provided at a position inclined substantially linearly to the lower part. The main transmission lever 32a and the upper end portions of the operation levers 32b such as the steering lever are arranged substantially parallel to the step surface (A) of the machine body.

  As a result, at the time of cutting, not only the information of the center monitor 38 can be obtained at the same position as the line of sight of the tip of the weeding body 20 while concentrating on the cutting height, but also the left and right main transmission levers 32a, The function switch of the operation lever 32b can easily enter the field of view, and the driving posture is not bent forward or standing, and the load on the operator can be reduced.

  As shown in FIGS. 11 and 12, the second processing chamber 41 has a second transfer spiral on one side of a second transfer spiral shaft 41a that pivotally supports the second transfer spiral on the outer diameter portion. A metal 41b is provided. The first processing chamber 40 is provided behind the second processing chamber 41. An openable / closable lid 41c is provided below the second transfer spiral receiving metal 41b.

  A swing shaft 42 is pivotally supported on the front side of the second transfer spiral shaft 41a, and a swing balancer 42a, a swing pulley 42b, and an outer shaft end on one side of the swing shaft 42 are provided. Is provided to support.

  A fuel tank 43a and an auxiliary fuel tank 43b are provided below the second processing chamber 41 and the swing shaft 42, a rear inclined surface 43c of the auxiliary fuel tank 43b, and an upper rocking shaft. The clearance (B) with the dynamic balancer 42a, the clearance (C) between the rear inclined surface 43c of the auxiliary fuel tank 43b, and the lower surface of the upper second transfer spiral receiving metal 41b have substantially the same width. Thus, the inclined surface 43c of the auxiliary fuel tank 43b is formed.

Thereby, the cleaning of the second processing chamber 41 is easy. Moreover, accumulation of soot and the like is prevented on the upper side surface of the auxiliary fuel tank 43b, and the flow down is facilitated.
As shown in FIGS. 13 and 14, the bottom (A) of the fuel tank 43a and the bottom (B) of the auxiliary fuel tank 43b are lower than the bottom (A) of the fuel tank 43a by a predetermined dimension (C). In the upper part, a large-diameter joining pipe 43d and an auxiliary joining pipe 43e are provided, and the joining pipe 43d and the auxiliary joining pipe 43e are connected by a joint pipe 43f. is there. A lower pipe 44a is provided below the fuel tank 43a, and a lower auxiliary pipe 44b is provided below the auxiliary fuel tank 43b. The lower pipe 44a and the lower auxiliary pipe 44b are connected to a lower joint pipe 44c. It is the structure joined by.

  As a result, when the bottom joint pipe 44c for the bottom part of the fuel tank 43a and the auxiliary fuel tank 43b is too large in diameter, the occurrence of problems due to interference with the traveling crawler 2b and a lump of mud is prevented. Due to the head difference between the tank 43a and the tank 43b, the fuel in the increased portion can be used effectively.

  As shown in FIGS. 15 and 16, in the configuration in which an engine cover frame (LH) 45 a and an engine cover frame (RH) 45 b are provided, the engine cover frame (LH) 45 a includes an engine frame 45 c and a frame clutch. 46 is assembled to 46. The engine cover frame (RH) 45b is assembled to the engine frame 45c and the step 45d. The lower part of the engine cover frame (LH) 45a has a structure without a frame structure.

Thereby, the maintainability can be improved by enlarging the space below the engine cover frame (LH) 45a.
As shown in FIGS. 15 to 18, in the configuration in which the engine cover frame (LH) 45 a and the engine cover frame (RH) 45 b are provided, the engine cover frame (LH) 45 a includes the engine frame 45 c and the frame. The structure is assembled to the cover 46. The engine cover frame (RH) 45b is assembled to the engine frame 45c and the step 45d. The lower part of the engine cover frame (LH) 45a has a structure having no frame structure. In addition, an opening 47a for maintenance is provided on the front side of the engine cover 47.

  As a result, the engine cover frame (LH) 45a is assembled to the frame clutch 46, so that the maintainability can be improved by enlarging the opening 47a on the front side of the engine cover 47.

  The auger operating device 48 for starting and stopping the grain transfer / discharge device that discharges the grain stored in the grain storage tank 5 of the combine 1 to the outside of the machine is as shown in FIGS. 19 and 20. The upper and lower cases 48a and 48b are divided into an upper main operation portion 48c and a lower sub operation portion 48d. The main operation portion 48c has a red back lamp lit, The surface portion of the operation portion 48c is red, the sub-operation portion 48d is lit with a blue back lamp, and the surface of the sub-operation portion 48d is blue.

  As a result, the operated side can easily recognize (confirm) which side is operated by the lighting color of the back lamp on the operated side, so that an erroneous operation can be prevented and safety can be improved.

  As shown in FIGS. 21 to 23, the narrow guide 19 includes a rear fitting 19b of a vertical narrow guide 19a provided with a front fitting 19b 'on the front part and a rear fitting 19' 'on the rear part. ”And a front end portion of the support rod 19h are provided with a foldable inner side support rod 19c and an outer lateral support rod 19d connected by a support pin 19f, and an outer end of the outer side support rod 19d. The outer mounting pin 19e is attached to the rear mounting tool 19b ″, and the inner side end portion of the inner side support rod 19c is attached to the outer end portion of the support rod 19h with the support pin 20m. Provided.

  A support pin 19m is inserted into the inner horizontal support rod 19c, and a positioning plate 19r provided on the support plate 19n is provided on the upper side of the support pin 19m below the inner horizontal support rod 19c. The support plate 19n and a boss pipe 19p provided on the lower surface of the support plate 19n are inserted to prevent the support plate 19n, and a washer, a spring 19s, The inner side support rod 19c is provided so as to be movable up and down.

  Each pin 19Q is provided on both the left and right sides of the support plate 19n, and an L-shaped receiving plate 19j is provided on the support rod 19h. The receiving plate 19j and each pin 19Q of the support plate 19n Each wire 25 is provided, and by operating the wire 25, the support plate 19n is rotated around the support pin 19m, and the vertical narrow guide 19a of the narrow guide 19 is expanded outward or inward. It is a configuration that moves by contraction. Further, when an excessive force is applied, the inner lateral support rod 19c is detached from the positioning plate 19r portion.

  Thereby, damage of the narrow guide 19 can be prevented.

Front sectional view of the upper part of the cutting input gear case Front sectional view of output gear and support pipe DD sectional view of FIG. EE sectional view of FIG. Combine side view Front cover side view Front view of the front cover Side view of radiator cover Side view of cockpit and center monitor Front view of cockpit and center monitor Side view showing the relationship between the auxiliary fuel tank, the second transfer spiral receiving metal, and the swing balancer Plan view showing the relationship between the fuel tank and the auxiliary fuel tank Front view showing relationship between fuel tank and auxiliary fuel tank Plan view showing the joining relationship between the fuel tank and the auxiliary fuel tank Side view showing relationship between engine cover frame (LH) and (RH) and engine frame Front view showing relationship between engine cover frame (LH) / (RH) and engine frame Side view of engine cover opening Front view of engine cover opening Front view of auger operation device Side view of auger operating device Overall plan view of narrow guide Rear view of narrow guide mounting FF sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Cutting device 7 Cutting input gear case 8 Input shaft 8a Input pulley 9 Input gear 10 Output gear 10a Engagement claw 11 Output shaft 12 Intermediate gear 12a Upper meshing claw 12b Claw clutch 13 Support pipe 15a Slider 15b Upper claw part 15c Lower claw part 16 Transmission gear 16a Lower pawl clutch 18a Transmission transmission path

Claims (1)

  The cutting input gear case (7) of the cutting device (3) for cutting the cereals receives the lateral input shaft (8) having the input pulley (8a) and receives the input gear (8) at a predetermined position of the input shaft (8). 9) is attached, meshed with the input gear (9), and an output gear (10) provided with a meshing claw (10a) at the lower portion is rotatably attached to the vertical output shaft (11), and the output shaft (11) A support pipe (13) is rotatably fitted to the upper end of the support pipe (13), and an upper meshing claw (12a) that meshes with the meshing claw (10a) is provided at the upper end of the support pipe (13). An intermediate gear (12) having a claw clutch (12b) at the lower portion is attached to the lower end portion, and a lower claw clutch (16a) is provided at a predetermined interval at a position below the intermediate gear (12) on the output shaft (11). ) Having a transmission gear (16) having a The intermediate gear (12) and the transmission gear (16) are interlocked by a transmission transmission path (18a), and the upper claw portion (15b) meshed with the claw clutch (12b) and the lower claw portion meshed with the lower claw clutch (16a). A combined cutting and transmission transmission device, wherein a slider (15a) having (15c) is provided on the output shaft (11) so as to be freely slidable in the axial direction only.

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