JPS5827052Y2 - Engine exhaust pipe attachment device for agricultural machinery - Google Patents

Description

[Detailed description of the invention] This device relates to an engine exhaust pipe mounting device for agricultural machinery.

That is, the present invention is characterized in that the exhaust pipe is arranged so as to be rotatable relative to the machine around the exhaust hole on the machine side.

In general, in agricultural machines, such as rice transplanters, where the exhaust pipe extends long from the engine, a slight misalignment between the engine and the main unit or between the muffler body and the tail pipe can cause a large difference at the exhaust port. As a result, it is difficult to match the exhaust hole on the machine side, and it takes time to install the engine and exhaust pipe.Also, when moving the engine back and forth, the exhaust pipe moves in parallel. It was necessary to make the exhaust hole on the machine side larger for that movable valve.

However, according to the proposed system, the exhaust pipe is attached to the machine so that it can rotate freely around the exhaust hole on the machine side, so during assembly, the rotation of the exhaust pipe will cause damage to the engine and silencer. It is easy to install, and since the tip of the exhaust pipe does not move even when the engine is moved forward or backward, there is no need to enlarge the exhaust hole on the machine side, and the muffler part is safe and has a good appearance. There is.

The embodiments shown in the drawings will be described below.

Fig. 1 shows a front view of a rice transplanter, which includes a body in which a frame 3 of an engine 2 is connected to the front part of a mission case 1, a transmission case 4 is connected to the rear part, and floats 5, 5 are attached to the bottom surface of the machine body. .5, and can run on a pair of left and right wheels 6,6.

The rear end of the transmission case 4 is provided with a seedling planting device 9 consisting of a seedling stand 7 and a planting mechanism 8, and a pair of operating handles 10.

Further, both axles 6, 6 are attached to the tip of a swing arm 11 whose base is rotatably attached to the transmission case 1.

Note that 12 indicates a bonnet, and 13 indicates a side engine cover.

This proposal relates to the improvement of a part of the muffler of the engine in agricultural machines such as rice transplanters as described above. In other words, Figure 2 is a view of the main part of the present invention with the engine cover 13 removed. , 14 is a belt that transmits power from the engine 2 to the wheels 6, and 15 is a belt that transmits power from the engine 2 to the wheels 6.
This is a belt that transmits power from the hydraulic pump 24 to the hydraulic pump 24.

16 is a silencer for engine 2, and 17 is this silencer 1.
This is an exhaust pipe facing the exhaust port No.6.

18 is an exhaust hole bored in the engine frame 3, and the tip of the exhaust pipe 17 is attached to the frame 3 with a mounting band 20.21 so that the exhaust port 19 of the exhaust pipe 17 is opposite to the exhaust hole 18. o2 installed and rotatably mounted
2 and 22 indicate the tightening bolts, and 23 and 23 are support plates welded to the frame 3, to which the tightening poles 1-
22.22 is installed.

Note that 27 is a band attached to the middle of the exhaust pipe 17, and the pin 25 of this band can slide in the elongated hole 26 of the frame 3, so that the exhaust pipe 17
This is so that it can be guided and rotated correctly.

As described above, since the exhaust pipe 17 is attached to the frame 3, the exhaust pipe 17 can swing back and forth as shown by the solid line and chain line in FIG. Even if there is a misalignment, the exhaust pipe 17 can be rotated according to the misalignment, making it easy to install the engine and muffler.Also, since the tip of the exhaust pipe 17 does not move even when the engine 2 is moved forward or backward, the exhaust hole can be rotated accordingly. It has the characteristic that there is no need to increase the size of 18.

[Brief explanation of drawings]

Fig. 1 is a front view of the rice transplanter, Fig. 2 is a partial view showing the main parts of the proposed device, Fig. 3 is an enlarged view of the proposed device, and Fig. 4 is a partially omitted Fig. 3 A arrow direction view. It is. 2... Engine, 3... Engine frame, 16... Silencer, 17... Exhaust pipe, 18... Exhaust hole, 20 .21...
mounting band.

Claims (1)

[Scope of utility model registration request] An exhaust hole is bored in the engine frame on the side of the work machine, and the exhaust port of the exhaust pipe is rotatably supported on the engine frame so that the exhaust port of the exhaust pipe is opposite to this exhaust hole.
An exhaust pipe mounting device for an engine in an agricultural machine that is formed so that the exhaust port of a muffler faces the inlet of the exhaust pipe.