JPH0511710Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention connects a hydraulic pump driven by the rotational power of an engine to a plurality of hydraulic devices via oil pipes, and connects the engine to the The present invention relates to a hydraulic piping structure for an agricultural machine that is fixedly attached to a mounting member attached to a main frame via a buffer rubber.

[Conventional technology]

In the past, the oil pipes that passed near the engine were configured to be installed inside a pipe-shaped main frame in order to avoid the negative effects of engine vibration and heat, and to utilize space effectively. Something was warm.

[Problem that the invention attempts to solve]

However, in the above-mentioned conventional structure, an insertion hole for inserting and removing the oil pipe must be formed in the main frame, resulting in a problem that the support strength of the main frame is reduced.

The present invention has developed a hydraulic piping structure for agricultural machinery that allows oil pipes to be placed and stored without reducing the strength of the main frame or requiring extra space, without using new support members. The purpose is to make it possible to obtain it by simple improvement of parts.

[Means for solving problems]

A feature of the present invention is that in the hydraulic piping structure of the above-mentioned agricultural machine, a through hole is formed in the mounting member, and an oil feed pipe that passes through the vicinity of the engine is inserted into the through hole. The functions and effects are as follows.

[Effect]

In other words, the structure is such that the oil pipe is passed through the insertion hole of the mounting member attached to the main frame to support the engine, so no modification is required to the main frame that supports the engine and other heavy objects. It can maintain a strong supporting force.
Moreover, since the mounting member is attached to the main frame, it is difficult for engine vibrations to be transmitted, and
Since the oil pipe is placed along the main frame, it does not require any extra dedicated space.

[Effect of idea]

Therefore, according to the present invention, by making simple improvements to existing parts, it is possible to prevent the strength of the main frame from decreasing and to store and deploy oil pipes in a compact manner. .

〔Example〕

FIG. 7 shows a combine harvester which is an example of the agricultural machine according to the present invention. This combine is configured to be able to run with a pair of left and right crawler running devices 1, 1, and has a reaping preprocessing section 2 at the front of the machine, a driving section 3 at the rear right side of the reaping preprocessing section 2, and a threshing section at the rear of the machine. A device 4 is provided respectively.

The crawler traveling devices 1, 1 include the driving section 3.
It is configured to rotate by supplying power from an engine 5 disposed inside the fuselage below through a hydrostatic continuously variable transmission (not shown) and a transmission case 7. As shown in FIG. 6A, among the ground guide wheels 9 of the crawler belt 8, the one on the central side is a movable roller 9a, and this movable roller 9a is attached to the truck frame 10 by a lever oscillation. A carrier roller 12 that guides the non-ground contact side of the crawler belt 8 is supported at the lower swinging end of the support member 11 which is rotatably supported, and a carrier roller 12 that guides the non-ground contact side of the crawler belt 8 is supported at the upper swinging end of the support member 11. The movable roller 9a is urged downward by a tension spring 13.
In this way, as shown in FIG. 6B, it is possible to absorb the deflection of the crawler belt 8 when riding over the protruding portion. Further, the crawler traveling device 1 is configured to be able to move up and down relative to the aircraft body using hydraulic power.

The reaping pre-processing section 2 is composed of a moving device 14, a reaping device 15, a vertical conveying device 17 that clamps and conveys the harvested grain culm toward the rear threshing device, and the like. A hydraulic cylinder 6, which is an example of a hydraulic device, is configured to be able to swing vertically around a horizontal axis p.

As shown in Fig. 4, the driving force of the pre-cutting process section 2 is supplied from the transmission case 7 through a belt tension type clutch mechanism 19. That is, a transmission belt 23 is wound and stretched around a driven pulley 21 attached to the machine body side end of a horizontal transmission case 20 which also serves as a support frame for the pre-cutting process section 2, and a driving pulley 22 on the transmission case 7 side, and the clutch can be turned on and off by applying or releasing the belt tension by a tension arm 24. As shown in Fig. 5, the position of the transmission belt 23 in the clutch-off state is maintained by a pressing pin 25 extending from a support bracket 18 which rotatably supports the transmission case 20, and a fulcrum shaft 26 to which the tension arm 24 is extended.

As shown in FIG. 1, the engine 5 is mounted on a pair of left and right mounting members 28, 28, which are welded and fixed to the front and rear main frames 27, 27, via vibration-proofing rubber cushions 29, 29. It is installed and fixed. A hydraulic pump 30 driven by the rotational power of the engine 5 is provided on the side of the engine 5, and this hydraulic pump 30 sucks the oil stored in the transmission case 7 and is connected to the hydraulic cylinder 6 or not shown. It is configured to supply hydraulic oil to a plurality of hydraulic devices, such as a hydraulic crawler elevating drive mechanism, through a hydraulic pipe 31 that is communicatively connected. Further, a through hole 32 is formed in the mounting members 28, 28, and a hydraulic pipe 31 of the hydraulic pipe 31 passing through the vicinity of the engine 5 is inserted into the through hole 32 and supported as a pipe along the main frame 27. There is. And in the part along the main frame 27,
As shown in FIGS. 2 and 3, an L-shaped guide plate 33 is fixed to the main frame 27, a reinforcing stay 34 is cut out, and the hydraulic pipe 31 is fitted into the cutout. 3
3 It is installed on the inside side.

By having the above configuration, the hydraulic pipe 31
This has the effect that the mounting member 28 can be disposed compactly by making effective use of empty space, and the weight of the mounting member 28 can be reduced.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an embodiment of the hydraulic piping structure for an agricultural machine according to the present invention, and FIG. 1 is a longitudinal sectional side view of the main part, and FIG.
The figure is a plan view of the main part, Figure 3 is a perspective view of the main part, and Figure 4 is a perspective view of the main part.
The figure is a side view of the belt tension clutch mechanism, and Figure 5 is a front view of the belt tension clutch mechanism.
FIG. 6 is a simplified side view showing the operation of the crawler traveling device, and FIG. 7 is an overall side view of the combine harvester. 5... Engine, 27... Main frame, 2
8... Mounting member, 29... Buffer rubber, 30... Hydraulic pump, 31... Oil feed pipe, 32... Through hole.

Claims (1)

[Scope of utility model registration request] A hydraulic pump 30 driven by the rotational power of the engine 5 and a plurality of hydraulic devices are connected to each other via an oil pipe 31, and the engine 5 is mounted on a mounting member 28 attached to the main frame 27 using a buffer rubber 29. This is a hydraulic piping structure for an agricultural machine that is fixedly attached via a through hole 32 in the mounting member 28, and a through hole 32 is formed in the mounting member 28, and
Of these, the oil pipe 31 passing through the vicinity of the engine 5
A hydraulic piping structure for an agricultural working machine, in which the piping is supported by being inserted into the through hole 32.