JPH10276565A - Transmission counter for mobile harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transmission counter easy in hydraulic piping work or maintenance. SOLUTION: A combine is provided with a lateral moving spiral 46 for moving grains in a grain tank 8 toward the discharge side and a hydraulic pump 40 for feeding operating oil to a hydraulic cylinder or the like with pressure, and motive force from an engine 10 is transmitted through a counter part 30 to the lateral moving spiral 46 and the hydraulic pump 40. This counter part 30 has bevel gears 48, 50 and 52 for orthogonal transmission, the hydraulic pump 40 is attached to this counter part 30, and motive force from the engine 10 is transmitted through an intermediate gear 50 engaged with an input gear 48 to the lateral moving spiral 46 and further transmitted through a driven gear 52 engaged with the intermediate gear 50 to the hydraulic pump 40. Thus, vibrations from the engine 10 are not directly transmitted to the hydraulic pump 40 or hydraulic piping.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile harvesting machine such as a combine harvester, and more particularly to a transmission counter of a mobile harvesting machine for transmitting power from an engine to a horizontal transfer spiral or a hydraulic pump.

[0002]

2. Description of the Related Art In a mobile harvester such as a combine harvester, conventionally, hydraulic oil is pressure-fed from a hydraulic pump to various hydraulic mechanisms for controlling lifting and lowering of a discharge auger, a reaper, and the like. And the hydraulic pump was directly driven by the power of the engine. However, since the engine is subject to vibration, the vibration is transmitted to a pipe or the like connecting the hydraulic pump and the oil tank, and there is a possibility that a hydraulic pressure fluctuation or a pipe displacement or the like due to the vibration may occur.

[0003] On the other hand, in some cases, the hydraulic pump cannot be directly attached to the engine due to the structure of the engine.

For this reason, conventionally, as shown in FIG. 8, for example, the hydraulic pump 40 is mounted on a counter case 30a of a counter section 30 for transmitting the power from the engine 10 to the subsequent stage by decelerating the power and the like. In some cases, the transmission power is changed by two bevel gears 48 and 50 provided in the motor 30 and a part of the power from the engine 10 is output to the threshing unit. That is, the counter unit 3
A spur gear 70 is coaxially arranged on the input shaft of the
In some cases, a separate spur gear 72 is engaged with the hydraulic pump 0 and the hydraulic pump 40 is driven by its output shaft.

[0005]

However, when a structure in which the hydraulic pump is not directly attached to the engine is employed, the conventional technique described above requires two spur gears 70 and 72 to be accommodated in the counter 30. The counter case 30a
In order to drive the hydraulic pump 40, the two spur gears 72 and 74 are newly added to transmit the power from the engine 10, so that the gear 72 shaft and the pump 40 shaft There has been a problem that the alignment becomes difficult and the cost increases. There is also a problem that maintenance becomes difficult depending on the mounting position of the counter unit 30.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide a transmission counter of a mobile harvester having a low-cost and compact structure in which hydraulic piping work and maintenance are easy. To provide.

[0007]

In order to achieve the above object, the present invention provides a grain tank (8) for storing grains threshed in a threshing unit (6), and the grain tank (8). A mobile harvester (1) provided with a horizontal transfer spiral (46) that is always disposed inside and continuously transports the grain toward one side, and a hydraulic pump (40) that pumps hydraulic oil to various hydraulic mechanisms. The power from the engine (10) is transmitted to the lateral transfer spiral (46) and the hydraulic pump (40) via a counter section (30) having bevel gears (48, 50, 52) for orthogonal transmission, and The hydraulic pump (40) is attached to the counter section (30).

The present invention also provides the counter section (30)
Has an input gear (48), an intermediate gear (50) meshing with the input gear (48), and a driven gear (52) meshing with the intermediate gear (50). And the hydraulic pump (40) is driven by the power taken out of the driven gear (52), while driving the lateral transfer spiral (46) with the power taken out from the driven gear (52).
It is characterized by the following.

Further, the present invention provides the counter section (30).
Is arranged in a space formed between the threshing unit (6) and the grain tank (8), and the grain tank (8) is set on the vertical axis (5).
The counter portion (30) is exposed by rotating sideways around 4).

(Operation) Based on the above-mentioned invention specific matter, the mobile harvester according to the present invention provides a horizontal transport spiral (46) that constantly transports the grains stored in the grain tank (8) toward the discharge side. ) And a hydraulic pump (40) for pumping hydraulic oil to various hydraulic mechanisms. Power from the engine (10) is supplied to the horizontal transfer spiral (46) and the hydraulic pump via a counter (30). (40).

The counter section (30) has bevel gears (48, 50, 52) for orthogonal transmission, and the hydraulic pump (40) is attached to the counter section (30). The power of the input gear (4
8) is transmitted through an intermediate gear (50) that meshes with the intermediate gear (50), and the motive power transmitted to the intermediate gear (50) is further transmitted while the laterally moving spiral (46) is driven.
0) is transmitted to the hydraulic pump (40) via a driven gear (52) meshing with the hydraulic pump (40), and the hydraulic pump (40) is driven.

Thus, the vibration from the engine (10) is not directly transmitted to the hydraulic pump (40), and the vibration is not transmitted to the hydraulic piping connected to the hydraulic pump (40). Therefore, piping work is simplified.

Note that the reference numerals in parentheses described above refer to the drawings, and do not limit the present invention in any way.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. Note that members that are the same as or correspond to those in the conventional example are denoted by the same reference numerals and described.

FIGS. 1 and 2 are external views of a combine as a mobile harvester to which the present invention is applied. In FIGS. 1 and 2, a combine 1 has a driver's seat 3 above a body 2 and A pair of right and left crawler traveling devices 4 and 4 for supporting the machine body 2, a vertically movable cutting device 5 for cutting grain stalks in front of the machine body 2, and a threshing unit 6 for threshing grain culms cut by the cutting device 5. The grain threshed by the threshing unit 6 is transferred through a fryer 7 and temporarily stored in a grain tank 8, and the grains stored in the grain tank 8 are transported by a truck or the like. A discharge auger 9 is provided to be lifted and swiveled to be carried out to a trailer.

FIG. 3 is a diagram showing a power transmission structure of a main part of the combine. Power of the engine 10 is transmitted from a driving pulley 12 provided on a crankshaft 11 to a HST (HST) via a belt transmission mechanism 14. The drive shaft 20 of the transmission 18 is transmitted from the HST 16 via the transmission 18 to the drive shaft 20 of the transmission 18.
Accordingly, the crawler traveling devices 4 and 4 are driven. The hydraulic oil in the oil tank 42 is supplied to the HST 16 by a hydraulic pump 40 described later.

Power is transmitted to the mowing device 5 from the transmission 18 and the transmission 1
8 is transmitted to the reaping gear case 26 by the belt transmission mechanism 24 from the drive side pulley 22. The threshing unit 6
The power of the engine 10 is transmitted from the drive-side pulley 12 to an input-side pulley 32 attached to an input shaft of a counter unit 30 described later.

The power transmitted to the input side pulley 32 is transmitted from the counter unit 30 to the spiral driving pulley 45 via the output pulley 41 and the belt transmission mechanism 44, and the lateral transport spiral 46 is further transmitted by the spiral driving pulley 45. The grain in the grain tank 8 is driven to be transferred to one side on the left and right sides.

On the other hand, the power transmitted to the input pulley 32 of the counter section 30 is transmitted from a transmission pulley 33 fixed integrally with the input pulley 32 to a belt transmission mechanism 34.
Thus, the power is transmitted to the input pulley 38 of the threshing gear case 36. Then, the power is transmitted from the threshing gear case 36 to the handling drum 28 by pulley and belt transmission.

In the present embodiment, the power from the engine 10 is transmitted to the lateral transfer spiral 46 and the hydraulic pump 40 via the counter 30 having a bevel gear for orthogonal transmission, and A pump 40 is attached to the counter section 30.

That is, as shown in FIGS. 3 and 4, the power of the engine 10 is transmitted to the counter 30 via the input pulley 32. A gear (bevel gear) 48,
Intermediate gear (bevel gear) 50 meshing with the input gear 48
And a driven gear (bevel gear) meshing with the intermediate gear 50
52. The power transmitted to the counter section 30 is reduced to a predetermined speed through an intermediate gear 50 meshing with the input gear 48 and taken out of the output pulley 41, and the power causes the lateral transfer spiral 46 to rotate at a low speed. Is always driven.

A hydraulic pump 40 for supplying hydraulic oil to various hydraulic mechanisms such as a hydraulic cylinder is mounted on a counter case 30a covering the outer periphery of the counter section 30.
The hydraulic pump 40 is driven at a predetermined rotational speed in a direction opposite to the input gear 48 by a driven gear 52 meshing with the intermediate gear 50. The drive shafts of the input gear 48 and the driven gear 52 are arranged opposite to each other and driven in opposite directions.

In the present embodiment, the counter 30 is arranged in a space formed between the threshing unit 6 and the grain tank 8.

That is, as shown in FIGS. 1 and 2 described above, the counter section 30 is a space formed between the threshing section 6 in the upper part of the body 2 and the grain tank 8, It is attached to the dead space of the bottom plate flow plate 8a of the tank 8.

The grain tank 8 can be turned sideways around a vertical axis 54 (see FIG. 1) in consideration of maintenance. In the rotated state, the counter section 30 is exposed to the outside.

FIGS. 5 to 7 show the detailed internal structure of the counter section 30. FIG.

From the engine 10, the input pulley 32
The power taken into the counter unit 30 via the input shaft 35 is transmitted from the input shaft 35 to the input gear 48, and further reduced and transmitted to the intermediate gear 50 meshing with the input gear 48, and the output shaft 43 and the output pulley Horizontal transfer spiral 46 from 41
Taken out to the side. A hydraulic pump 40 is connected to the driven gear 52 that meshes with the intermediate gear 50, and a spline shaft 53 is connected to the driven gear 52.

Next, the operation of the combine counter 30 will be described.

The power from the engine 10 is transmitted to the reaper 5 and the threshing unit 6 and the like, and also transmitted to the grain tank 8 side. 10 is transmitted to the counter unit 30 via the pulleys 12 and 32. In the counter unit 30,
Input gear 48 having power transmission shafts in directions orthogonal to each other
Is reduced by the intermediate gear 50 and output to the pulley 41.

Further, the power transmitted to the pulley 41 is transmitted to a pulley 45 via a belt transmission mechanism 44, and the lateral transfer spiral 4 fixed integrally with the pulley 45.
6 is driven to rotate by this power, and
By 6, the grains in the grain tank 8 are transferred toward the base side of the discharge auger 9. At this time, since the power of the engine 10 is constantly transmitted to the grain tank 8 side in a decelerated state, the lateral transfer spiral 46 is always driven to rotate while the engine 10 is operating.

The counter section 30 is disposed in a space formed between the threshing section 6 and the grain tank 8, and the grain tank 8 is provided on a vertical axis 5 erected from the machine body 2.
4 can be turned sideways. On the other hand, a hydraulic pump 40 is attached to the counter section 30, and when the grain tank 8 is turned to the side, the counter section 30 and the like are exposed, so that the counter section 30 and the hydraulic pump 40 are repaired and inspected. When doing so, the work becomes simple.

Further, the hydraulic pump 4
0, the hydraulic pump 40, the oil tank, the valve unit, and the like are arranged at positions close to each other, thereby shortening piping work for connecting each other. Also becomes easier.

[0033]

As described above, according to the present invention, the power from the engine is transmitted to the lateral transfer spiral and the hydraulic pump via the counter having the bevel gear for orthogonal transmission, and the hydraulic pump is connected to the counter. By attaching to
Since the hydraulic pump can be directly driven by the power of the counter unit, vibration from the engine is not directly transmitted to the hydraulic pump, and vibration is not transmitted to the piping from the hydraulic pump. It can be easily piped on the fuselage frame. In addition, since the hydraulic pump is attached to the counter section, the hydraulic pump, the oil tank, the valve unit, and the like come close to each other, and the piping work for connecting these components can be easily performed.

Also, in the present invention, the counter section has an input gear, an intermediate gear, and a driven gear, and drives the lateral transfer spiral with the power taken out of the intermediate gear, and converts the power taken out of the driven gear into power. By driving the hydraulic pump, the counter unit can be configured at low cost and compact, and the rotational speed of the power input from the engine is reduced to constantly drive the lateral transfer spiral at a low speed. be able to.

Further, according to the present invention, by disposing the counter section in a space formed between the threshing section and the grain tank, an unused space can be effectively used and the grain tank can be laterally arranged. When the rotary operation is performed, the counter section is exposed to the outside, and maintenance of the counter section including the hydraulic pump is facilitated.

[Brief description of the drawings]

FIG. 1 is a plan view of a combine to which the present invention is applied.

FIG. 2 is a front view of FIG.

FIG. 3 is an explanatory view of a power transmission structure of the combine.

FIG. 4 is an exploded perspective view of a counter unit.

FIG. 5 is a sectional plan view of a counter section.

FIG. 6 is a cross-sectional side view of the counter unit.

FIG. 7 is a cross-sectional front view of the counter unit.

FIG. 8 is a diagram showing a conventional example of a power transmission system from an engine to a counter unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Combine 2 Body 5 Cutting device 6 Threshing part 8 Grain tank 10 Engine 12 Drive side pulley 14 Belt transmission mechanism 18 Transmission 30 Counter part 32 Input side pulley 33 Transmission pulley 34 Belt transmission mechanism 35 Input shaft 40 Hydraulic pump 42 Oil tank 46 Lateral transport spiral 48 Input gear 50 Intermediate gear 52 Follower gear 54 Vertical axis

Claims (3)

[Claims] 1. A grain tank for storing grains threshed in a threshing unit, a horizontal transfer spiral disposed in the grain tank and constantly conveying the grains toward one side, and various hydraulic mechanisms And a hydraulic pump for pumping hydraulic oil to the hydraulic pump, wherein power from an engine is transmitted to the lateral transfer spiral and the hydraulic pump via a counter having a bevel gear for orthogonal transmission, and A transmission counter for a mobile harvester, wherein a pump is mounted on the counter section. 2. The counter section has an input gear, an intermediate gear meshing with the input gear, and a driven gear meshing with the intermediate gear, and the lateral transfer is performed by power taken from the intermediate gear. The transmission counter according to claim 1, wherein the hydraulic pump is driven by power taken out of the driven gear while driving the spiral. 3. The counter section is disposed in a space formed between the threshing section and the grain tank, and the counter section is rotated sideways around a vertical axis. 3. The transmission counter of the mobile harvester according to claim 1, wherein the transmission counter is exposed.