JP2008263908A - Agricultural work machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an agricultural work machine capable of switching the power from a running body to transmit to an operating part of the agricultural work machine, or to output to a device other than the agricultural work machine. <P>SOLUTION: The agricultural work machine comprises: a first bevel gear 3 transmitted the power from a running body via an input shaft 1; a second bevel gear 41 engaged with the first bevel gear 3 and transmitted the power; a driving shaft 21, having a rotation axis on the rotation axis line of the second bevel gear 41, positioned on one side of the second bevel gear 41 and transmitting the power to the working part side of the agricultural work machine; and externally outputting shaft 31, having a rotation axis on the rotation axis line of the second bevel gear 41 positioned on the reverse side of the driving shaft 21 to the second bevel gear 41 and outputting the power to a device of another than the agricultural vehicle; and a crutch part 20, capable of switching the power of the second bevel gear 41 to transmit to the driving shaft 21 or to output to an externally output shaft 31. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an agricultural machine, and more particularly, to an agricultural machine that can switch between transmission of power from a traveling machine body to a working unit of the agricultural machine or output for a device other than the agricultural machine.

  FIG. 9 is a side view of a known shaving machine (hello), and FIG. 10 is a structural diagram showing the transmission of the known shaving machine. The substitution machine is attached to the rear part of the traveling machine body such as a tractor, and the PTO output from the traveling machine body is input from the input shaft 1 to the first bevel gear 3, the second bevel gear 4, the drive shaft (known example) 100, the first sprocket 101, the chain. 105, and transmitted to the tilling shaft 104 via the second sprocket 102, and the tilling shaft 104 rotates, so that the tilling portion 106 performs the shaving work. The drive pipe 5 has a drive shaft 100, but the reinforcing pipe 6 is for maintaining strength and appearance, and has no structure inside. These configurations are the same in the rotary, and are common in a rotary and a substitute machine.

On the other hand, Patent Document 1 describes a leveling device of a mechanism that rotates the pressure roller by transmitting the power of the tilling shaft to the pressure roller via the interlocking medium in the rotary.
JP-A-5-316804

  It is efficient and economical if it is possible to output the power from the agricultural machine that receives the power from the traveling machine, and divert the output power to other applications such as a pump and a generator. There are many desirable scenes.

  However, like the leveling device described in Patent Document 1, in order to obtain an output for the pressure reducing roller, the tillage shaft must be rotated, and when this output is diverted to an output for a pump or a generator, as needed. It is very dangerous because the tiller shaft is rotating.

  In view of the above problems, an object of the present invention is to provide an agricultural machine capable of switching between transmission of power from a traveling machine body to a working unit of an agricultural machine or output for a device other than an agricultural machine. And

  In order to achieve the above object, a farm machine according to the present invention is attached to a rear part of a traveling machine body, and is capable of performing work in a working unit by power from the traveling machine body. The second gear has at least a first gear transmitted through an input shaft, a second gear to which meshing power is transmitted to the first gear, and a rotation shaft on the rotation axis of the second gear. A drive shaft that is located on one side of the gear and transmits power to the working unit side of the farm work machine, and a rotation shaft on the rotation axis of the second gear, and the drive for the second gear An external output shaft that is located on the opposite side of the shaft and outputs power to a device other than the agricultural machine, and whether the power of the second gear is transmitted to the drive shaft or the external output shaft And a clutch mechanism that can switch either of them. To.

  Furthermore, the agricultural machine according to the present invention is characterized in that the switching of the clutch mechanism is performed by operating a clutch switching lever engaged with the clutch mechanism. Further, the agricultural machine according to the present invention is characterized in that the switching of the clutch mechanism is performed by moving the external output shaft in the axial direction of the rotation shaft. Furthermore, in the agricultural machine according to the present invention, the movement of the external output shaft in the axial direction is such that a boss of a device other than the agricultural machine is attached to the end of the external output shaft opposite to the second gear. It is made by this. Furthermore, the agricultural machine according to the present invention is characterized in that attachment of devices other than the agricultural machine is possible regardless of bolt tightening.

  ADVANTAGE OF THE INVENTION According to this invention, in a farm machine, it becomes possible to switch whether the motive power from a traveling machine body is transmitted to the working part of a farm machine, or it outputs for apparatuses other than a farm machine. Thereby, the output to apparatuses other than agricultural machines can be performed safely.

  The best mode for carrying out the present invention will be described.

  FIG. 1 is a diagram illustrating a clutch unit according to a first embodiment of the present invention. The clutch unit 20 includes a drive-side clutch 10 and an external output-side clutch 11. Each clutch has a cylindrical shape, and has a drive-side clutch spline 14 and an external output-side clutch spline 15 on the inside. It has a drive side clutch groove 18 and an external output side clutch groove 19. The clutch switching lever 13 is operated by engaging the driving side clutch engaging portion 16 and the driving side clutch groove 18 of the clutch frame 12 and the external output side clutch engaging portion 17 and the external output side clutch groove 19 of the clutch frame 12. Thus, the drive side clutch 10 and the external output side clutch 11 are movable.

  FIG. 2 is an enlarged cross-sectional view of a first main part in the vicinity of the mission case 2 according to the first embodiment of the present invention. The first bevel gear 3 and the second bevel gear (Example 1) 41 are in mesh with each other, and can transmit power from the input shaft 1 to which the first bevel gear is mounted. The second bevel gear 41 has a bevel shaft 45 mounted on the same axis, and the bevel shaft 45 is also rotated by the rotation of the second bevel gear 41. The bevel shaft 45 protrudes from both sides of the second bevel gear 41 and has a bevel shaft output side spline 46 and a bevel shaft drive side spline 47 at both ends of the second bevel gear 41.

  On the other hand, on one side (left side in FIG. 2) of the second bevel gear 41, there is a drive shaft (Example 1) 21 having a rotation axis on the rotation axis of the bevel gear 41, and the second bevel gear 41 side of the drive shaft 21 is present. Has a drive shaft spline 22. Further, on the opposite side (right side in FIG. 2) of the drive shaft 21 of the second bevel gear 41, there is an external output shaft (Example 1) 31 having a rotation axis on the rotation axis of the second bevel gear 41, and an external output An external output shaft bevel side spline 32 is provided on the second bevel gear 41 side of the shaft 31.

  The drive side clutch 10 is configured between the drive shaft 21 and the bevel shaft 45, and the external output side clutch 11 is configured between the bevel shaft 45 and the external output shaft 31, and the drive side clutch spline 14 and the drive shaft spline 22 are driven. The side clutch spline 14 and the bevel shaft drive side spline 47, the external output side clutch spline 15 and the external output shaft bevel side spline 32, and the external output side clutch spline 15 and the bevel shaft output side spline 46 can be engaged with each other.

  In the state of FIG. 2, the clutch switching lever 13 is moved to the drive side (left side of FIG. 2). In this case, the drive-side clutch spline 14 and the drive shaft spline 22, the drive-side clutch spline 14 and the bevel shaft drive-side spline 47 are engaged, and the power from the bevel shaft 45 is transmitted to the drive shaft 21. On the other hand, although the external output side clutch spline 15 and the bevel shaft output side spline 46 are engaged, the external output side clutch spline 15 and the external output shaft bevel side spline 32 are not engaged, and the power from the bevel shaft 45 is externally applied. It is not transmitted to the output shaft 31.

  FIG. 3 is an enlarged cross-sectional view of a second main part in the vicinity of the mission case 2 according to the first embodiment of the present invention. The difference from FIG. 2 is that the clutch switching lever 13 is moved to the output side (right side in FIG. 2). In this case, the external output side clutch spline 15 and the bevel shaft output side spline 46 and the external output side clutch spline 15 and the external output shaft bevel side spline 32 are engaged with each other, and the power from the bevel shaft 45 is transmitted to the external output shaft 31. The On the other hand, although the drive side clutch spline 14 and the bevel shaft drive side spline 47 are engaged, the drive side clutch spline 14 and the drive shaft spline 22 are not engaged, and the power from the bevel shaft 45 is transmitted to the drive shaft 21. Not. The clutch switching lever 13 may be attached so that the clutch portion 20 acts as described above, and the attachment method is not specified.

  FIG. 4 is an enlarged cross-sectional view of the main part in the vicinity of the output part of the external output shaft according to the first embodiment of the present invention. 4 corresponds to the output side of the external output shaft 31 (the right extension side in FIGS. 2 and 3). An external output shaft output side spline 33 is provided at the output side end of the external output shaft 31. The pump 51 is attached to the output portion flange 60 and the output portion bracket 59 by a plurality of bolts 52. The external output shaft output side spline 33 meshes with a spline in the boss 53 of the pump 51, and the power from the external output shaft 31 is transmitted to the pump 51 side. Further, the cover 54 is mounted by fixing the cover mounting plate 55 to the output portion flange 60 and the output portion bracket 59. Further, the pump 51 can be mounted even in the structure of the mounting boss 56 having the spring 57 shown in FIGS. 7 and 8 of Example 2 described later.

  Thus, in the first embodiment, when the clutch switching lever 13 of the clutch unit 20 is moved to the drive side (in the state of FIG. 2), the traveling machine body such as a tractor obtained through the input shaft 1 is used. The power can be transmitted to the drive shaft 21, and the power is transmitted from the drive shaft 21 to the working unit of the farm work machine. On the other hand, when the clutch switching lever 13 of the clutch unit 20 is moved to the output side (in the state shown in FIG. 3), the power from the traveling machine body obtained from the input shaft 1 can be transmitted to the external output shaft 31. Furthermore, power can be externally output from the external output shaft 31 to the pump 51.

  FIG. 5 is a first essential part enlarged cross-sectional view in the vicinity of the mission case 2 of the second embodiment of the present invention. The first bevel gear 3 and the second bevel gear (Embodiment 2) 66 are in mesh with each other, and can transmit power from the input shaft 1 to which the first bevel gear 3 is mounted. The second bevel gear 66 has a through hole 67, a bevel gear pawl clutch 68 on the output side (right side in FIG. 5), and a bevel gear spline 69 on the inner side on the drive side (left side in FIG. 5).

  On the other hand, on one side of the second bevel gear 66 (left side in FIG. 5), there is a drive shaft (second embodiment) 91 having a rotation axis on the rotation axis of the second bevel gear 66, and the second bevel gear 66 of the drive shaft 91. A drive shaft spline 92 is provided at the tip of the stepped portion 93 on the side, and a tip portion 94 is provided at the tip thereof. The clutch 71 is cylindrical and has a clutch inner spline 72 on the inner side and a clutch outer spline 73 on the outer side. The clutch 71 is mounted so that the drive shaft spline 92 and the clutch inner spline 72 are engaged, and the clutch spring 76 is mounted between the clutch 71 and the stepped portion 93. Further, the clutch outer spline 73 and the bevel gear spline 69 can be engaged with each other.

  Further, on the opposite side (right side in FIG. 5) of the drive shaft 91 of the second bevel gear 66, there is an external output shaft (Example 2) 81 having a rotation axis on the rotation axis of the second bevel gear 66, and the external output On the second bevel gear 66 side of the shaft 81, a tip cylindrical portion 84 is provided at the tip, an external output shaft pawl clutch 83 is provided on the outside thereof, and the inside of the tip cylindrical portion 84 is a cavity portion 82. A collar 75 is mounted between the front end cylindrical portion 84 and the clutch 71, and a front end portion 94 of the drive shaft 91 can be inserted inside them.

In the case of FIG. 5, the clutch 71 is biased by the clutch spring 76, the clutch outer spline 73 is engaged with the bevel gear spline 69, and the clutch inner spline 72 is
The power from the second bevel gear 66 is transmitted to the drive shaft 91 by meshing with the drive shaft spline 92.

  FIG. 6 is an enlarged cross-sectional view of a second main part in the vicinity of the mission case 2 according to the second embodiment of the present invention. The difference from FIG. 5 is that the external output shaft 81 has moved to the second bevel gear 66 side (left side in FIG. 6), so that the tip cylindrical portion 84 of the external output shaft 81 pushes the collar 75 to the drive shaft 91 side. Since the collar 75 pushes the clutch 71 against the force of the clutch spring 76, the clutch outer spline 73 and the bevel gear spline 69 are not engaged, and the power of the second bevel gear 66 is not transmitted to the drive shaft 91. On the other hand, since the external output shaft 81 has moved to the second bevel gear 66 side (left side in FIG. 6), the external output shaft pawl clutch 83 and the bevel gear pawl clutch 68 are engaged, and the power of the second bevel gear 66 is transmitted to the external output shaft 81. Will come to be.

  FIG. 7 is an enlarged cross-sectional view of the main part of the output part of the external output shaft 81 and the mission case 2 according to the second embodiment of the present invention. 8 is a cross-sectional view taken along the line A in FIG. An output side spline 85 is provided at the output side end of the external output shaft 81. The output-side flange 62 and the output-side bracket 61 have a plurality of pin holes 63 and rotating grooves 64 as shown in FIG. 8, and these are through holes. The pump 51 is attached by inserting the pin 58 of the pump 51 having a plurality of pins 58 into the pin hole 63 and rotating it along the rotation groove 64. Then, the head of the pin 58 is caught in the rotation groove 64. On the other hand, the output-side spline 85 meshes with a spline provided inside the mounting boss 56 of the pump 51, and further includes a spring 57 inside the mounting boss 56. The spring 57 urges the end of the external output shaft 81 toward the second bevel gear 66, and the pump 51 is urged in the direction opposite to the input shaft 1. Accordingly, the pump 51 is attached by rotating while being pushed, and at the same time, the external output shaft 81 can be pushed to the second bevel gear 66 side, and the power from the external output shaft 81 is transmitted to the pump 51 side. Make it possible. Further, the cover 54 is mounted by fixing the cover mounting plate 55 to the output side flange 62 and the output side bracket 61. Further, the pump 51 can be mounted even in the structure of the boss 53 that does not have the spring 57 shown in FIG. In this case, the external output shaft 81 is designed to move by the force when the boss 53 is attached, and to be in the state shown in FIG. 6 when the clutch 71 is attached to the pump 51.

  Thus, in the second embodiment, when the pump 51 is not attached, the clutch spring 76 causes the state shown in FIG. 5 to transmit the power from the traveling machine body obtained through the input shaft 1 to the drive shaft 91. Further, power is transmitted from the drive shaft 91 to the working unit of the farm work machine, thereby enabling farm work. On the other hand, when the pump 51 is attached, the external output shaft 81 is pushed toward the second bevel gear 66 against the force of the clutch spring 76 by the force of the spring 57 of the pump 51, and is obtained via the input shaft 1. The motive power from the traveling machine body is transmitted to the external output shaft 81, and can be output from the external output shaft 81 to the pump 51.

  In any of the above-described first and second embodiments, the structure of the invention other than the above-described parts can be applied to, for example, the proxy machine shown in FIGS. That is, the above-described first and second embodiments are applied to the configuration inside the mission case 2 and the right side of the reinforcing pipe 6 in FIG. Moreover, since it is the structure of the transmission similar to a rotary machine other than a rotary machine, it is applicable. Further, the second bevel gears 41 and 66 of the first and second embodiments can be applied to, for example, a spur gear after the power from the bevel gear is shifted one step. That is, the configuration to which the present invention can be applied is that the power from the traveling machine body has a rotation axis on the rotation axis of the gear via the gear and is located on one side with respect to the gear and the power is on the working unit side of the farm work machine. A drive shaft that transmits to the gear, and an external output shaft that has a rotation shaft on the rotation axis of the gear and is located on the opposite side of the drive shaft with respect to the gear and outputs power for a device other than the farm work machine. Can be configured.

  Moreover, although both Example 1 and Example 2 showed the pump 51 as the apparatus concerning the said external output, it is not restricted to this, It can apply to the apparatus obtained using rotation as a motive power source, such as a generator. In the case of a pump, for example, it can be applied to a car wash device.

It is a figure which shows the clutch part of Example 1 of this invention. It is a 1st principal part expanded sectional view of the mission case vicinity of Example 1 of this invention. It is a 2nd principal part expanded sectional view of the mission case vicinity of Example 1 of this invention. It is a principal part expanded sectional view of the output part vicinity of the external output shaft of Example 1 of this invention. It is a 1st principal part expanded sectional view of the mission case vicinity of Example 2 of this invention. It is a 2nd principal part expanded sectional view of the mission case vicinity of Example 2 of this invention. It is the principal part expanded sectional view of the output part of the external output shaft of Example 2 of this invention, and a mission case. It is A sectional view taken on the line in FIG. It is a side view of the shaving machine which is a well-known example. It is structural drawing which shows the transmission of the shaving machine which is a well-known example.

Explanation of symbols

3 1st bevel gear 10 Drive side clutch 11 External output side clutch 20 Clutch part 21 Drive shaft (Example 1)
31 External output shaft (Example 1)
41 Second bevel gear (Example 1)
51 Pump 66 Second bevel gear (Example 2)
68 Bevel gear pawl clutch 71 Clutch 76 Clutch spring 81 External output shaft (Example 2)
83 External Output Shaft Claw Clutch 91 Drive Shaft (Example 2)
92 Drive shaft spline

Claims (5)

Agricultural work machine that is attached to the rear part of the traveling machine body and can work in the working part by the power from the traveling machine body,
A first gear to which power from the traveling machine body is transmitted through at least an input shaft, a second gear to which meshing power is transmitted to the first gear, and rotation on the rotation axis of the second gear A drive shaft that has a shaft and is located on one side with respect to the second gear and transmits power to the working unit side of the agricultural machine, and a rotation shaft on the rotation axis of the second gear. An external output shaft that is located on the opposite side of the drive shaft with respect to the gear and outputs power to a device other than the agricultural machine, and transmits the power of the second gear to the drive shaft or the external A farm machine comprising: a clutch mechanism capable of switching between transmission to an output shaft.   2. The agricultural machine according to claim 1, wherein the clutch mechanism is switched by operating a clutch switching lever engaged with the clutch mechanism.   2. The agricultural machine according to claim 1, wherein the switching of the clutch mechanism is performed by moving the external output shaft in the axial direction of the rotating shaft.   4. The agricultural machine according to claim 3, wherein the external output shaft is moved in the axial direction by attaching a boss of an apparatus other than the agricultural machine to the end of the external output shaft opposite to the second gear. An agricultural machine characterized by   5. The agricultural machine according to claim 4, wherein attachment of devices other than the agricultural machine is possible regardless of bolt tightening.

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