JPH048018Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure for mounting comparatively heavy engine attachments such as batteries in mobile agricultural machines such as rice transplanters, tillers, binders, etc., in which the engine is supported in a vibration-proof manner.

In general, the resonance point of an engine's vibration isolation support structure is determined by the engine mass, the spring constant of the vibration isolation rubber, and the support position, and in order to improve the vibration isolation effect, the resonance point must be set as low as possible in the rotation range. There is. Since the engine mass and support position are usually determined by the type and model of the mobile agricultural machine, in order to lower the resonance point, it is necessary to reduce the spring constant, that is, to soften the vibration isolating rubber. However, in mobile agricultural machinery equipped with relatively lightweight engines, such as rice transplanters and tillers, it is necessary to use fairly soft vibration-proof rubber in order to obtain the desired vibration-proofing effect. Changes in the tension of the belt that is transmitted to the transmission cause the engine to shake significantly, creating the risk that power transmission will not be carried out adequately. On the other hand, if a stiffer anti-vibration rubber is used to prevent the engine from shaking, the eigenvalue of the engine support system will increase and resonance will occur within the engine operating range, making it impossible to obtain a sufficient anti-vibration effect.

Therefore, the present invention provides a mobile agricultural machine in which the engine is supported by anti-vibration rubber and power is transmitted from the output shaft of the engine via a belt, on the engine base on which the engine is mounted and fixed.
Relatively heavy engine attachments are installed alongside the engine on the side opposite to the side where the belt is placed, and the engine base on which these engine attachments and the engine are placed and fixed is secured with anti-vibration rubber. It is an object of the present invention to provide a mounting structure for an engine accessory in a mobile agricultural machine which is configured to support the engine and which eliminates the above-mentioned drawbacks.

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

As shown in FIG. 1, the riding rice transplanter 1 has wheels 2.
The fuselage 3 has a transmission 5, and an engine frame 6 is fixed to the front part of the transmission 5, and a bonnet 7 is provided above the engine frame 6. covered. Further, a planting device 10 is supported at the rear of the body 3 via a link 9, and the planting device 10 consists of a main body 11, a planting rod 12, a seedling stand 13, and a float 15, and has a considerable weight. have.

As shown in FIG. 2, a relatively large engine base 17 is placed and fixed on the engine frame 6 via a vibration isolating rubber 16. An engine 19 is placed and fixed by four bolts 20, and a battery 21 is installed at the front part of the engine 19.
is attached by a stay 23 via a cushioning material (rubber plate) 22. Further, a power take-off pulley 25 is disposed on the engine 19, and a belt 27 is stretched between the pulley 25 and an input pulley 26 of the transmission 5. In addition, 29 in the figure
is a bumper weight attached to the front part of the engine frame 6, which balances the weight of the planting device 10 at the rear of the aircraft body.

Since the present embodiment has the above-described configuration, the rotation of the engine 19 is transmitted to the transmission 5 via the belt 27 and further transmitted to the wheels 2 to run the riding rice transplanter 1 and to the planting device 10. The information will also be conveyed and the planting work will be carried out. In addition, vibrations accompanying the rotation of the engine 19 are absorbed by the vibration isolating rubber 16;
In addition to the engine 19, the anti-vibration rubber 16 also supports the battery 21, which is quite heavy, so the vibration resistance at the same resonance point is considerably higher than that of a conventional one that only supports the engine 19. A spring constant is sufficient. Therefore, even if the anti-vibration rubber 16 exhibits the desired anti-vibration characteristics, a rigid material can be used, and the belt 2 may be damaged due to load fluctuations.
Even if the tension change of 7 occurs, the engine 19 does not shake significantly and power can be transmitted reliably.

In addition, in the above embodiment, the battery 21 is mounted on the engine base 17 together with the engine 19.
It is not limited to the battery, but may be any attachment to the engine 19 such as a fuel tank or a hydraulic pump that is relatively heavy, and a plurality of these attachments may be attached to the engine base 17.

As explained above, according to the present invention, since the relatively heavy engine attachment 21 is integrally supported with the engine 19 by the anti-vibration rubber 16, the anti-vibration support mass can be increased even with an extremely simple structure. Therefore, the anti-vibration rubber 16 can be made of a rigid material.
While the desired vibration damping characteristics can be obtained, the shaking of the engine 19 due to changes in belt tension can be reduced. Further, the engine accessories 21 include the engine 1
Since it is arranged side by side with the engine on the opposite side to the belt tensioning direction from 9, the engine attachment 21 has the function of maintaining the tension of the belt 27, and
The engine 19 is elastically supported so as not to cause a large change in response to changes in the tension of the belt, and together with the fact that the vibration isolating rubber 16 can be made of a rigid material, the power from the engine is reliably transmitted. be able to.

[Brief explanation of the drawing]

FIG. 1 is an overall side view showing a riding rice transplanter to which the present invention can be applied, and FIG. 2 is a partially cutaway side view showing the front part thereof. 1... Mobile agricultural machinery, 16... Anti-vibration rubber, 17...
Engine base, 19...engine, 21...engine accessories (battery).

Claims (1)

[Claims for Utility Model Registration] (1) The engine 19 is supported by the anti-vibration rubber 16,
In the mobile agricultural machine 1 in which power is transmitted from the output shaft of the engine via a belt 27, on the engine base 17 on which the engine is mounted and fixed, on the side opposite to the side where the belt is arranged. An engine attachment for a mobile agricultural machine in which a relatively heavy engine attachment 21 is attached alongside the engine, and the engine base on which these engine attachments and the engine are mounted and fixed is supported by anti-vibration rubber. Mounting structure. (2) A mounting structure for an engine attachment in a mobile agricultural machine according to claim 1 of the utility model registration claim, wherein the engine attachment is a battery.