JP4746574B2 - Combine - Google Patents

Description

  In the present invention, a pulling device having a pulling tine that is detachably attached to a front surface of a pulling case of the pulling device and that is protruded in the front-rear direction of the machine body is wound. The present invention relates to a combine technique including an auxiliary pulling device and an oiling device that lubricates via an oiling pipe extending to a conveying device of a cutting unit and a cutting blade.

Conventionally, a pulling device disposed at the front portion of the cutting unit, and an auxiliary pulling member in which a pulling chain having a pulling tine that is detachably attached to the front surface of the pulling case of the pulling device and protrudes in the longitudinal direction of the machine body is wound. The technique of a combine provided with a device and an oiling device that lubricates via an oiling pipe extending to a conveying device of a cutting unit and a cutting blade is known.
For example, Patent Document 1 discloses a so-called vertical turning type grain raising device (auxiliary raising device) in which a raising chain having a raising tine protruding in the longitudinal direction of the machine body is wound. Further, Patent Document 2 discloses a combine oiling device in which a side cover is provided in a cutting portion and an oiling device is disposed in the side cover.
JP-A-10-323110 JP 2004-97229 A

  However, the auxiliary pulling device disclosed in Patent Document 1 is troublesome because the operator needs to manually lubricate the pulling chain. Moreover, the oil supply device of the combine disclosed by patent document 2 rotates a switching lever to a predetermined position, and if an oil supply switch is pressed, the lubricating oil of an oil supply tank will be via an oil supply piping by operation | movement of an oil supply pump, Although it is lubricated to the conveying device of a cutting part, a cutting blade, etc., it is not lubricated to the raising chain of an auxiliary raising device. Therefore, since the operator needs to manually lubricate the pulling chain of the auxiliary pulling device, it is similarly troublesome.

  In view of the above situation, an object of the present invention is to provide a combine that can easily lubricate a pulling chain of an auxiliary pulling device with a simple structure.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

That is, in claim 1,
A pulling device disposed at the front of the cutting part;
An auxiliary pulling device on which a pulling chain having a pulling tine that is detachably mounted on the pulling case front surface of the pulling device and protrudes in the longitudinal direction of the machine body is wound;
An oiling device that lubricates via a conveying device of the cutting part and an oiling pipe extending to the cutting blade;
In a combine comprising
A roller disposed at a lower portion of the auxiliary pulling device and around which the pulling chain is wound;
A roller holder for rotatably supporting the roller;
A support pipe extending upward from the roller holder,
One end of the oil supply pipe is connected to the support pipe.

In claim 2,
One end of the oil supply pipe is inserted into the auxiliary pulling device from the lower side surface, and is inserted from the upper end so that the axial center coincides with the support pipe.

In claim 3,
The support pipe is attached to a guide case with a spring fitted thereto, and urges the roller downward to constitute an automatic tensioning mechanism for the pulling chain.

In claim 4,
The guide case is integrally formed of synthetic resin.

  As effects of the present invention, the following effects can be obtained.

In claim 1,
Since the pulling chain of the auxiliary pulling device can be lubricated at the time of centralized lubrication at the cutting part, it is possible to save the operator from having to manually lubricate.
Further, by using the support pipe as an oil supply pipe, it is possible to perform centralized oil supply to the auxiliary pulling device with a simple configuration.

In claim 2,
The lubrication pipe can be connected to the support pipe with a simple configuration, and even if the support pipe moves up and down as the roller moves up and down, it does not come off, and lubrication can be performed without applying a load to the lubrication pipe.

In claim 3,
By using the support pipe, an automatic tensioning mechanism can be configured without providing a separate member for supporting the spring, and the cost can be reduced by reducing the number of parts.

In claim 4,
The guide case can be easily produced at low cost and can be reduced in weight.

Next, the best mode for carrying out the invention will be described.
1 is a side view showing a combine according to an embodiment of the present invention, FIG. 2 is a plan view, FIG. 3 is a side view showing an internal structure of the auxiliary pulling device, and FIG. 4 is a roller and a support of the auxiliary pulling device. FIG. 5 is a front sectional view showing a roller of an auxiliary pulling device, and FIG. 6 is a diagram schematically showing an oiling device.

First, the whole structure of the combine 100 which concerns on one Example of this invention is demonstrated using FIG.1 and FIG.2.
In the following description, the left side in the traveling direction of the traveling machine body 1 is simply referred to as “left side”, and the right side in the same direction in the traveling direction is simply referred to as “right side”. In the present embodiment, a combination of two-row cutting is described, but a combination of three or more cuttings may be used.

  As shown in FIGS. 1 and 2, the combine 100 has a traveling machine body 1 supported by a pair of left and right traveling crawlers 2. It is mounted so that it can be adjusted up and down. On the left side of the traveling machine body 1, a threshing unit 5 for threshing and selecting the harvested grains is arranged, and on the right side of the traveling machine body 1, a grain tank 7 for storing grains after threshing is arranged. 5 and side by side. A discharge auger 8 is provided at the rear of the traveling machine body 1 so as to be able to turn, and the grains inside the grain tank 7 are discharged from the throat throw 9 of the discharge auger 8 to a truck bed or a container. It is configured as follows. An operation unit 10 is disposed in front of the grain tank 7.

  The driving unit 10 includes a step 11 where the operator gets on, a substantially U-shaped steering handle 13 provided in the handle column 12 on the step 11, a driving seat 14 provided behind the steering handle 13, A main speed change lever 16, a sub speed change lever 17, a cutting clutch lever 18, and a cutting speed change lever 19 provided on the side column 15 on the left side of the driver seat 14 are disposed. An engine 20 serving as a power source for driving the combine 100 itself and driving a feed chain 6 described later is disposed below the driver seat 14.

In addition, a cutting blade device (not shown) that cuts the stock of uncut grain culm in the field is disposed below the cutting frame 21 below the cutting unit 3. In front of the cutting frame 21 at the front of the cutting unit 3, two pulling devices 23 that cause uncut grain culm in the field are arranged. Between the pulling device 23 and the front end portion (feed start end side) of the feed chain 6, a culm transport device 24 that transports the culm cut by the cutting blade device 22 to the feed chain 6 is disposed. .
The auxiliary pulling device 4 is detachably mounted on the front surface of the pulling case 23a of the pulling device 23, and is configured so as to cause a fallen culm and mow. The auxiliary pulling device 4 is wound with a pulling chain 41 (endless chain) having a pulling tine 40 protruding in the longitudinal direction of the machine body. The pulling chain 41 is configured to be driven in synchronization with the pulling device 23. At the front end of the cutting frame 21 at the lower part of the auxiliary pulling device 4, a weeding body 25 for weeding uncut cereal grains in the field is projected.

  As such a configuration, the combine 100 can continuously cut the uncut cereals in the field by driving the cutting unit 3 while driving the traveling crawler 2 by the engine 20 and moving in the field.

  In addition, the threshing unit 5 includes a handling cylinder 26 for cereal threshing, a swing sorting device 27 and a red pepper fan 28 for selecting a cereal to fall below the handling cylinder 26, and a threshing taken out from the rear part of the handling cylinder 26. A processing cylinder 29 for reprocessing the discharged material and a dust exhaust fan 30 for discharging sawdust and dust at the rear part of the swing sorting device 27 are provided. In the threshing unit 5, the stock side of the culm conveyed from the reaping unit 3 by the culm conveying device 24 is inherited by the feed chain 6 and conveyed backward, and the tip side of the culm is the handling cylinder 26. It is carried in and threshed by the handling cylinder 26, and is subjected to swing sorting by the swing sorting device 27 and wind sorting by the Kara fan 28, and is sorted into the first thing, the second thing, the sawdust, etc. It is configured as follows.

  A waste chain 34 is disposed on the rear end side (feed end side) of the feed chain 6. The waste passed down from the rear end side of the feed chain 6 to the waste chain 34 (the grain from which the grain has been shed) is discharged to the rear of the traveling machine body 1 in a long state, or behind the threshing unit 5. After being cut to an appropriate length by the waste cutter 35 disposed in the slab, it is discharged to the lower rear of the traveling machine body 1.

Moreover, the combine 100 lubricates the cereal conveyance device 24, the cutting blade device 22, the pulling device 23, and the auxiliary pulling device 4 through the lubrication pipes 37, 52. It is comprised so that concentrated oiling can be performed (refer FIG. 6).
The oil supply device 36 is extended to an oil supply tank 32 in which lubricating oil is stored, an oil supply pump 31 for supplying the lubricating oil in the oil supply tank 32, the grain feeder 24, the cutting blade device 22, and the like. Lubricating pipes 37, 52, etc. are provided. An oil supply pipe 52 extending from the oil supply pump 31 is connected via a branch pipe 39 to an oil supply pipe 53 connected to the grain feeder 24 and the auxiliary pulling device 4, the cutting blade device 22 and the pulling device 23. Branching to an oil supply pipe 54. The oil supply pipe 53 is further branched via a branch pipe 56 into an oil supply pipe 55 connected to the grain feeder 24 and an oil supply pipe 37 connected to the auxiliary pulling device 4. The oil supply pipe 54 is further connected through a branch pipe 57 to the oil supply pipe 54L connected to the left cutting blade device 22L and the pulling device 23L, and to the oil supply pipe 54R connected to the right cutting blade device 22R and the pulling device 23R. It is branched to. The branch configuration is not limited to the above configuration, and may be a configuration with a branch pipe that branches into three or more.
The lubricating device 36 is disposed on the rear surface of the pulling case 23a of the pulling device 23 on the right side. When the switching lever (not shown) is rotated to a predetermined position and the lubricating lever 33 is rotated, Lubricating oil is lubricated by the operation of the lubrication pump 31 via the lubrication pipes 37, 52... To the grain feeder 24, the cutting blade device 22, the pulling device 23, the auxiliary pulling device 4 and the like of the cutting unit 3. Note that the oil pump 31 may be either a manual type or an electric type.

Next, the auxiliary pulling device 4 will be described with reference to FIGS. Since the left and right auxiliary pulling devices 4 have substantially the same configuration, the configuration of the left auxiliary pulling device 4 will be described below unless otherwise specified.
As shown in FIG. 3, the auxiliary pulling device 4 is detachably mounted on the front surface of the pulling case 23a of the pulling device 23, and is configured to cause tilted rice. Specifically, in the auxiliary pulling device 4, the upper portion of the auxiliary pulling case 42 is screwed to the front surface of the pulling case 23a of the pulling device 23 via a mounting portion 42a provided on one side surface (right side surface). The lower part of the auxiliary pulling case 42 is attached to the hitch portion 25a of the weed body 25. In the auxiliary pulling device 4, a pulling chain 41 having a pulling tine 40 protruding in the longitudinal direction of the machine body is wound around a drive sprocket 44 and a roller 45.

The drive sprocket 44 is fixed to one end (left end) on the auxiliary pulling drive shaft 43 disposed in the upper portion of the auxiliary pulling case 42. The auxiliary pulling drive shaft 43 is disposed in the mounting portion 42 a with the axial direction being the left-right direction of the body, and one end (left end) is rotatably inserted into the auxiliary pulling case 42. The other end (right end) of the auxiliary pulling drive shaft 43 can transmit power to the pulling drive shaft 23b of the pulling device 23 to which power from the engine 20 is transmitted via a bevel gear (not shown).
Thus, the driving force of the pulling drive shaft 23b of the pulling device 23 is transmitted to the auxiliary pulling drive shaft 43 and the drive sprocket 44, and the pulling chain 41 is rotationally driven. As the pulling chain 41 is driven to rotate, the pulling tine 40 is pulled up to cause a fallen culm.

  The roller 45 is rotatably supported via a roller shaft 50 by a roller holder 46 disposed at a lower portion in the auxiliary pulling case 42. The roller holder 46 is for rotatably supporting the roller 45, and is formed in a substantially inverted U shape (see FIG. 5) when viewed from the front. The roller 45 is provided on the roller shaft 50 and is disposed between the left and right side surfaces of the roller holder 46. A support pipe 47 is extended upward from the roller holder 46.

As shown in FIG. 5, the roller shaft 50 has an axial length that is longer than the width of the auxiliary pulling case 42 (the length in the left-right direction), and both ends are elongated holes on the left and right side surfaces of the auxiliary pulling case 42. It protrudes from 42b. The long holes 42b are long open in the vertical direction on the left and right side surfaces of the auxiliary pulling case 42.
The roller shaft 50 includes a hollow first roller shaft 50a on which the roller 45 is fitted, and a second roller shaft 50b inserted into the first roller shaft 50a. The second roller shaft 50b is inserted into the first roller shaft 50a from the elongated hole 42b of the auxiliary pulling case 42, and the roller 45 is rotatably supported on the first roller shaft 50a. Both sides of the first roller shaft 50a are supported so as to be vertically slidable within the long holes 42b of the auxiliary pulling case 42, and washers for preventing the first roller shaft 50a are fitted on both sides of the second roller shaft 50b. .

  As shown in FIGS. 4 and 5, the support pipe 47 is a hollow member, is connected to a communication hole opened in the center of the upper surface of the roller holder 46, and extends upward. One end of an oil supply pipe 37 of the oil supply device 36 is connected to the upper end of the support pipe 47. One end of the oil supply pipe 37 is inserted from the lower side surface (left side surface) of the auxiliary pulling case 42, and the front end 37 a shown in FIG. 4 is inserted from the upper end of the support pipe 47 so as to coincide with the axis of the support pipe 47. The support pipe 47 (roller holder 46) is inserted from the upper end of the support pipe 47 to an appropriate length so as not to come off when sliding.

  With such a configuration, when a switching lever (not shown) of the lubrication device 36 is rotated to a predetermined position and the lubrication lever 33 is rotated, the lubricating oil in the lubrication tank 32 is lubricated by the lubrication pump 31 to lubricate the piping 52, 53, The oil is sent to the auxiliary pulling device 4 through 37 or the like (see FIG. 6). As shown in FIG. 5, the fed lubricating oil is led out from one end (tip 37 a) of the lubrication pipe 37 to the support pipe 47. The derived lubricating oil passes through the support pipe 47 and is dropped onto the roller 45 (groove of the roller 45) (the lubricating oil 38 shown in FIG. 5). The dropped lubricating oil 38 adheres to the pulling chain 41 as the roller 45 rotates. Thus, the lubrication device 36 lubricates the elevating chain 41 by lubrication.

As shown in FIG. 4, the support pipe 47 is attached to the guide case 49 with a spring 48 fitted thereto, and the roller 45 is urged downward to constitute an automatic tensioning mechanism of the pulling chain 41. . That is, the support pipe 47, the roller holder 46, and the roller 45 are integrated by the spring 48 and are urged downward to serve as a tension roller.
The guide case 49 is for guiding and supporting the support pipe 47 so as to be slidable in the vertical direction, and is integrally formed of synthetic resin. The guide case 49 has bolt holes opened in the left and right directions at the upper part and the middle part in the vertical direction, and is fixed to the auxiliary pulling case 42 by a first mounting bolt 49a and a second mounting bolt 49b.
The first mounting bolt 49 a fixes the guide case 49 to the right side surface of the auxiliary pulling case 42, and the second mounting bolt 49 b is inserted from the outside (left side) of the left side surface of the auxiliary pulling case 42, The auxiliary pulling case 42 is configured to be fixed to both the left and right side surfaces. A guide groove 51 into which the support pipe 47 is inserted is formed in the lower part of the guide case 49 in the vertical direction.
The guide groove 51 includes an upper guide groove 51a and a lower guide groove 51b. The upper guide groove 51a is formed so that the groove width is slightly wider than the diameter of the support pipe 47, and the support pipe 47 is slid vertically. It is configured to be guided and supported in a movable manner. The lower guide groove 51 b has a groove width wider than that of the upper guide groove 51 a, and is configured to insert a spring 48 that is externally fitted to the support pipe 47.
The spring 49 is externally fitted to the support pipe 47, and a lower end is brought into contact with the upper surface of the roller holder 46, and an upper end is brought into contact with the upper surface of the lower guide groove 51b to urge the roller holder 46 downward. It is configured.

With such a configuration, when the pulling chain 41 is extended, the support pipe 47, the roller holder 46, and the roller 45 are integrated while the support pipe 47 is guided to the guide groove 51 of the guide case 49 by the biasing force of the spring 48. Thus, the pulling chain 41 is tensioned by being automatically moved downward. Further, when a load is applied to the pulling chain 41, the support pipe 47 is guided upward by the guide groove 51 of the guide case 49 against the biasing force of the spring 48. At this time, both ends of the roller shaft 50 are slid along the end surface of the elongated hole 42b of the auxiliary pulling case 42. In this way, the distance between the auxiliary pulling drive shaft 43 of the drive sprocket 44 and the roller shaft 50 of the roller 45 is increased or decreased, and the tension of the pulling chain 41 is maintained.
The oil supply pipe 37 is fixed to the auxiliary pulling case 42, and the support pipe 47 is moved up and down without leaving the tip of the oil supply pipe 37 being inserted.
In addition, since the axial length of the roller shaft 50 is longer than the width (the length in the left-right direction) of the auxiliary pulling case 42, the auxiliary pulling case 42 is not tightened and the roller shaft 50 is moved to the auxiliary pulling case 42. Can be assembled to. Thereby, the both ends of the roller shaft 50 are smoothly slid along the end face in the long hole 42b.

As described above, the combine 100 includes the pulling device 23 disposed at the front portion of the cutting unit 3 and the pulling tine 40 that is detachably mounted on the front surface of the pulling case 23a of the pulling device 23 and protrudes in the longitudinal direction of the machine body. The auxiliary pulling device 4 around which the pulling chain 41 having the above is wound, and the oil supply device 36 that supplies oil through an oil supply pipe 37 that extends to the grain feeder 24 and the cutting blade device 22 of the cutting unit 3 are provided. In the combine 100, a roller 45 that is disposed below the auxiliary pulling device 4 and around which the pulling chain 41 is wound, a roller holder 46 that rotatably supports the roller 45, and a support that extends upward from the roller holder 46. A pipe 47, and one end (tip 37 a) of the oil supply pipe 37 is connected to the support pipe 47.
With such a configuration, it is possible to lubricate the pulling chain 41 of the auxiliary pulling device 4 at the time of concentrated lubrication of the cutting unit 3, so that it is possible to save the operator from having to manually lubricate. Further, by using the support pipe 47 as the oil supply pipe 37, centralized oil supply to the auxiliary pulling device 4 can be performed with a simple configuration.

  One end (tip 37 a) of the oil supply pipe 37 is inserted into the auxiliary pulling device 4 (auxiliary pulling case 42) from the lower side surface, and is inserted from the upper end of the support pipe 47 so that the axis is aligned with the support pipe 47. Therefore, the lubrication pipe 37 can be connected to the support pipe 47 with a simple configuration, and even if the support pipe 47 moves up and down as the roller 45 moves up and down, the lubrication pipe 37 does not come off and a load is applied to the lubrication pipe 37. It can be lubricated without sprinkling.

  Further, the support pipe 47 is attached to the guide case 49 with a spring 48 fitted thereto, and the roller 45 is biased downward to constitute an automatic tensioning mechanism of the pulling chain 41. By using, an automatic tensioning mechanism can be configured without providing a separate member for supporting the spring 48, and the cost can be reduced by reducing the number of parts.

  Furthermore, since the guide case 49 is integrally formed of synthetic resin, the guide case 49 can be easily manufactured at low cost and can be reduced in weight.

The side view which showed the combine which concerns on one Example of this invention. FIG. The side view which showed the internal structure of the auxiliary pulling apparatus. The side view which showed the roller and support pipe of an auxiliary pulling apparatus. Front sectional drawing which showed the roller of the auxiliary pulling apparatus. The figure which showed the oiling apparatus typically.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Cutting part 4 Auxiliary pulling device 22 Cutting blade device 23 Pulling device 23a Pulling case 24 Grain conveying device 36 Lubricating device 37 Lubricating piping 40 Pulling tine 41 Pulling chain 45 Roller 46 Roller holder 47 Support pipe 100 Combine

Claims (4)

A pulling device disposed at the front of the cutting part;
An auxiliary pulling device on which a pulling chain having a pulling tine that is detachably mounted on the pulling case front surface of the pulling device and protrudes in the longitudinal direction of the machine body is wound;
An oiling device that lubricates via a conveying device of the cutting part and an oiling pipe extending to the cutting blade;
In a combine comprising
A roller disposed at a lower portion of the auxiliary pulling device and around which the pulling chain is wound;
A roller holder for rotatably supporting the roller;
A support pipe extending upward from the roller holder,
One end of the lubrication pipe is connected to the support pipe.
Combine that is characterized by that. The oil supply pipe is inserted from the upper end so that one end is inserted into the auxiliary pulling device from the lower side surface and the axis is aligned with the support pipe.
The combine according to claim 1. The support pipe is attached to a guide case with a spring fitted outside, and the roller is biased downward to constitute an automatic tensioning mechanism of the pulling chain.
The combine according to claim 1 or 2, characterized in that. The guide case is integrally formed of synthetic resin.
The combine according to claim 3.