JPH113A - Movable harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movable harvester provided with hydraulic pipes, designed to prevent each hydraulic pipe from being caught between a pretreatment section and support frame, and also to facilitate piping works for the hydraulic pipes. SOLUTION: This movable harvester is provided with hydraulic pipes 16a, 16b, 17a and 17b passing through holes provided in a support frame 8, to connect an oil tank 15, provided on one side of the movable machine, to a hydraulic speed change gear 12 and hydraulic pump 11. These hydraulic pipes supply oil in the oil tank 15 to the hydraulic pump 11 to drive the movable machine and pretreatment section, and to the hydraulic speed change gear 12 to change rotational speed of the transmission 13, the output of which being transmitted to the crawler 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile harvester such as a combine harvester, and more particularly, to a mobile harvester having a hydraulic transmission that changes the speed of an engine output shaft and transmits the rotation to a traveling unit.

[0002]

2. Description of the Related Art In general, a mobile harvesting machine includes a traveling machine having a threshing device and a pre-processing section which is moved up and down by a hydraulic cylinder device with respect to the traveling machine, and an engine mounted on the traveling machine. Between the output shaft of the engine and a traveling unit having a crawler traveling device and the like, a hydraulic transmission (hereinafter, “HS”) that changes the speed of the output shaft of the engine and transmits the rotation to the traveling unit.
T "), and an oil tank for supplying and discharging oil to and from the hydraulic cylinder device and the HST is provided.

[0003] That is, the power of the engine is transmitted from the engine pulley to the input pulley of the HST by a traveling belt.
The crawler traveling device is driven from the HST via the transmission by the drive shaft of the transmission.

The HST is constructed by combining an oil filter, a charge pump, a low-pressure relief valve, and a check and high-pressure relief valve between a pair of hydraulic pumps and a hydraulic motor connected in a closed circuit. It is directly connected to the case.

In order to supply oil from the oil tank to the HST, a hydraulic pipe for driving the HST and wiring for controlling the supply of the oil are passed through a front side of a support frame for supporting a pre-processing unit for cutting and conveying the grain stalk. It is arranged.

[0006]

However, in the conventional mobile harvester, the hydraulic pipe for driving the HST and its wiring are disposed through the front side of the support frame.
In order to prevent the hydraulic pipe and its wiring from being caught between the main frame supporting the pre-processing unit and the support frame, it is necessary to bend the hydraulic pipe in a complicated manner, and piping work of the hydraulic pipe is complicated. There was a problem.

Further, it is necessary to provide a holding member for preventing the hydraulic pipe from hanging down, which causes a problem that the structure and the number of manufacturing steps are increased.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and prevents the hydraulic pipe from being caught between the pre-processing section and the support frame, thereby facilitating the piping work of the hydraulic pipe. It is an object of the present invention to provide a mobile harvester.

[0009]

Therefore, in order to achieve the above object, a mobile harvester according to the present invention is arranged between a traveling machine body (1) and a pre-processing unit (2). (2) interposed between a hydraulic cylinder device (10) for driving up and down, an engine output shaft (13) and a traveling portion (14), and changing the rotation of the engine output shaft (13) to change the speed of the traveling portion. A hydraulic transmission (12) for transmitting oil to the hydraulic transmission (14), an oil tank (15) for supplying and discharging oil to and from the hydraulic cylinder device (10) and the hydraulic transmission (12);
Which is provided at a front portion of the traveling body (1),
A support frame (8) for supporting the pretreatment section (2) is arranged, and the oil tank (1) is provided on one side of the support frame (8).
5), and holes (8a, 8) are formed in the support frame (8).
b), a hydraulic pipe (17a, 17b) for connecting the oil tank (15) and the hydraulic transmission (12) is passed through the hole (8a, 8b). Features.

[Operation] Based on the above configuration, an oil tank (15) is provided on one side of the traveling body (1), and the oil tank (15) is provided in holes (8a, 8b) formed in the support frame (8). Hydraulic pipes (17a, 17b) connecting the oil tank (15) and the hydraulic transmission (12) are penetrated. Thereby, oil from the oil tank (15) is supplied to and discharged from the hydraulic transmission (12), and the hydraulic transmission (1
2) The speed of the rotation of the engine output shaft (13) is changed, and the output is transmitted to the traveling section (14).

Note that the reference numerals in parentheses described above are for comparing the drawings, and do not limit the configuration of the present invention.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a side view showing a mobile harvester according to a first embodiment of the present invention, FIG. 2 is a side view showing an enlarged main part of the mobile harvester, and FIG. FIG. 4 is a plan view of FIG. 3 as viewed from the front of the traveling body.

In FIG. 1, a mobile harvester includes a traveling body 1.
A pre-processing unit 2 is provided at the front of the traveling machine 1 so as to be able to move up and down with respect to the traveling machine 1. The pre-processing unit 2 raises, cuts, and transports the grain culm. The threshing of the grain is performed.

That is, one pre-processing unit 2 is provided with a raising device 4, a mowing device 5, and a grain culm conveying device 6. Then, the transmission case 7 extends in the left-right direction of the
The raising device 4 and the mowing device 5 are configured to transmit power by a power transmission mechanism (not shown) inserted through the transmission case 7.

The transmission case 7 is supported by a support frame 8 attached to a front portion of the traveling body 1 and supports the pre-processing section 2 by a main frame 9 provided continuously with the transmission case 7. A hydraulic cylinder device 10 for moving the pre-processing unit 2 up and down is arranged between the main frame 9 and the traveling machine body 1 as shown in FIG.

The other traveling machine 1 has a hydraulic pump 11 for supplying and discharging oil when rotating a Glen tank (not shown) and controlling the direction of the traveling machine 1, and an engine (not shown).
HST12 as a hydraulic transmission for shifting the rotation of the
A pair of left and right traveling crawlers 14 serving as a traveling unit in which the rotation shifted by the HST 12 is transmitted via a transmission 13 serving as an engine output shaft, and an oil tank 15 for supplying and discharging oil to and from the hydraulic pump 11 and the HST 12 are provided. The HST 12 incorporates a hydraulic pump (not shown) and a hydraulic motor (not shown).

That is, the HST 12 is configured by combining an oil filter, a charge pump, a low-pressure relief valve, and a check-and-high-pressure relief valve with a pair of hydraulic pumps and a hydraulic motor connected in a closed circuit.

The oil tank 15 is arranged on one side of the traveling body 1, and the HST 12 is arranged on the other side of the support frame 8. Further, between the oil tank 15 and the hydraulic pumps 11 and HST12, hydraulic pipes 16a, 16b and HST for operating the hydraulic pump penetrate through the holes 8a and 8b formed in the support frame 8.
Hydraulic pipes 17a and 17b for operation are respectively connected.

Since the mobile harvester according to the present embodiment is configured as described above, the HST 12 converts the input rotation from the engine into hydraulic pressure by the HST hydraulic pump and operates the hydraulic motor to reduce the output rotation. obtain. This output rotation is transmitted to the traveling crawler 14 via the transmission 13.

The hydraulic pipes 16a and 16b connected to the oil tank 15 are rotated during maintenance and inspection of the Glen tank, the direction of the traveling machine 1 is controlled, and oil is supplied to and discharged from the hydraulic cylinder device 10. When the pre-processing unit 2 is driven up and down, oil is supplied to and discharged from the hydraulic pump 11.
Similarly, the hydraulic pipe 17 connected to the oil tank 15
a and 17b supply and discharge oil to and from the HST 12 when shifting the rotation of the transmission 13.

Hydraulic pipes 17a, 17b for supplying / discharging oil to / from the HST 12, which transmits the transmission of the rotation of the transmission 13 at variable speeds, are disposed through the holes 8a, 8b of the support frame 8, and the hydraulic pump 11 is provided with oil. Hydraulic pipes 16a, 1 for supplying and discharging oil from tank 15
6b is disposed so as to penetrate through the holes 8a and 8b of the support frame 8, so that the hydraulic pipes 16a, 16b, 17a and 17b are not caught between the pre-processing unit 2 and the support frame 8, and Hydraulic pipes 16a, 16b, 1
7a and 17b do not hinder the elevation of the pre-processing unit 2.

[0023]

As is apparent from the above description, according to the present invention, the oil tank is provided on one side of the traveling body,
Since the hydraulic pipe connecting the oil tank and the hydraulic transmission is penetrated through a hole formed in the support frame, the hydraulic pipe is not sandwiched between the preprocessing unit and the support frame, and the hydraulic pipe is Piping work can be easily performed.

[Brief description of the drawings]

FIG. 1 is a side view showing a mobile harvester according to a first embodiment of the present invention.

FIG. 2 is an enlarged side view showing a main part of the above.

FIG. 3 is a front view of the mobile harvester as viewed from the front of a traveling machine body.

FIG. 4 is a plan view of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling body 2 Preprocessing part 8 Support frame 8a hole 8b hole 10 Hydraulic cylinder device 12 Hydraulic transmission (HST) 13 Engine output shaft (transmission) 14 Traveling part (traveling crawler) 15 Oil tank 17a Hydraulic pipe 17b Hydraulic pipe

Claims (1)

[Claims] Claims: 1. A vehicle is disposed between a traveling body and a pre-processing unit,
A hydraulic cylinder device that drives the pre-processing unit up and down, a hydraulic transmission device that is interposed between an engine output shaft and a traveling unit, that changes the speed of rotation of the engine output shaft and transmits the rotation to the traveling unit; In a mobile harvester comprising: a device and an oil tank for supplying and discharging oil to and from the hydraulic transmission, a support frame for supporting the pre-processing unit is disposed at a front portion of the traveling machine body, and one side thereof is provided. Wherein the oil tank is disposed on the supporting frame, a hole is formed in the support frame, and a hydraulic pipe connecting the oil tank and the hydraulic transmission is penetrated and disposed in the hole. Harvester.