JPH0522305Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a blower bearing lubricating device for a speed sprayer used for spraying chemicals in orchards and the like.

[Conventional technology]

Conventionally, speed sprayers commonly used in orchards, etc., supply chemical solutions to a large number of spray nozzles installed at the rear of the machine, and further, the chemical solutions sprayed from the large number of spray nozzles are blown by air from a blower. It spreads over a wide area at once.

The blower blows air by continuously rotating a relatively large impeller with a diameter of about 80 cm installed at the tip of the rotating shaft. It was necessary to take sufficient measures against wear.

For this reason, it is possible to use oil-free bearings, but in general, grease, which is a lubricating oil, is regularly supplied to the bearings.

As a method for regularly supplying grease to the bearing, it is possible to install a long oil supply pipe from the grease nipple provided on the bearing to a location where it is easy to supply oil, for example to the outside of the blower case, or to provide a long oil supply pipe at the tip of the grease gun. A method was adopted in which a refueling pipe was installed and the tip of the pipe was connected to a grease nipple in the bearing when refueling.

[The problem that the idea aims to solve]

When using the above-mentioned oil-free bearings, there is usually no need to replenish the bearings with grease, etc., and it does not require any effort, but there is a limit in terms of durability when used for a long time. Ta.

In addition, conventional methods for attaching a long oil supply pipe from the grease nipple provided on the bearing to the outside of the blower case, for example, where it is easy to supply oil, have been to hold the oil supply pipe on the surface of the fixed blade, or to attach the oil supply pipe to the outside of the blower case. It had a shape that crossed the inside of the torso.

Therefore, it takes time and effort to install the oil supply pipe, and since the oil supply pipe is exposed inside the blower case (wind barrel), it may be damaged or act as a resistance to air blowing, resulting in uneven chemical spraying. , there were drawbacks such as the adhesion of dust and further accumulation of the adhered dust.

Another method is to attach a long extended oil supply pipe to the tip of the grease gun, and connect the tip to the grease nipple on the bearing when refueling. It had to be connected to a grease nipple for lubricating the bearing, and the connection work was extremely time-consuming.

This invention was made in view of the above circumstances,
A speed sprayer with a structure in which the oil supply pipe is not exposed inside the air blowing case (wind barrel), so it will not be damaged or create resistance during air blowing like in the past, and it will not attract or accumulate dust. The object of the present invention is to provide a blower bearing lubrication device.

[Means to solve the problem]

In order to achieve the above object, the present invention has a configuration in which a refueling pipe extending from the refueling part of the bearing of the impeller is connected to a refueling grease nipple provided outside of the blower case, etc. through the hollow part of the fixed blade of the blower. That is.

[Effect]

In the present invention, the bearings 9a, 9 of the impeller 5 of the blower 4
When supplying grease to b, grease nipples 14a, 14 for lubricating provided on the outside of the blower case 6, etc.
It is sufficient to supply grease to b from the grease gun 2.

That is, the lubricating grease nipple 14a,
14b is a bearing 9 located inside the blower case 6.
Refueling pipe 11 that passes through the refueling parts 10a, 10b of a and 9b and the hollow part 13b of the fixed blade 13a of the blower 4
This is because they are connected by a and 11b.

Therefore, in the present invention, it is extremely easy to supply grease to the bearings 9a and 9b.

Further, the oil supply pipes 11a and 11b are connected to the fixed wing 1.
Since it is stored in the hollow part 13b of 3a, it does not get damaged or get in the way of airflow, and it has a good appearance.

〔Example〕

An embodiment of the present invention will be described in detail below based on the drawings.

Figure 4 shows an example of a commonly used speed sprayer, where 1 is the driver's seat, 2 is the internal combustion engine as a power source for driving, etc., 3 is the chemical tank, and 4 is the rear part of the machine. An axial blower is provided.

The present invention relates to the four parts of the blower, the details of which are shown in FIGS. 1 and 2.

In the figure, reference numeral 5 denotes a blade wheel of the blower 4, which is attached to the tip of a rotating shaft 7 that is rotatably supported at the center of the blower case 6, and is surrounded by the blower case 6.

The rotating shaft 7 is attached to the blower case 6 side with a plurality of fixed blades 13 and a bearing mounting plate 8a,
Pillow-shaped bearings 9a, 9b provided via 8b
, and a fixed wing boss portion 12 is formed between them.

In the present invention, the oil supply portion 10 of the bearings 9a, 9b
Refueling pipes 11a and 11b are connected to a and 10b, respectively, and both the refueling pipes 11a and 11b pass through the bearing mounting plates 8a and 8b and are brought together in the fixed wing boss portion 12, As shown in FIG. 2, it is connected to grease nipples 14a, 14b for refueling provided outside the blower case 6, etc., where it is easy to perform the grease supply operation, through the hollow part 13b of the fixed blade 13 made up of plate materials 13a, 13a.

According to the present invention having the above configuration, the bearing 9
When replenishing grease to a and 9b, use the grease nipple 14 provided outside the blower case 6, etc.
It is sufficient to connect the tips of a grease gun to a and 14b and replenish the grease.

That is, the oil supply part 1 of the bearings 9a and 9b located in the center of the ventilation case 6 which requires gas supply
0a, 10b and the grease nipple 14 for oil supply
A and 14b are connected by oil supply pipes 11a and 11b, respectively, so a long extended oil supply pipe is attached to the tip of the grease gun as in the past, and the oil supply pipe is passed through a small gap between the blower case 6 or the impeller 5, etc. to the bearing. There is no need to connect it to the oil supply parts 10a, 10b. Furthermore, the present invention provides the oil supply pipe 11
Since a and 11b are not exposed inside the blower case 6, it looks good and will not be damaged or get in the way of air blowing.

[Effect of idea]

According to the present invention, it is not time-consuming to supply grease to the blower bearing, and since the oil supply pipe is not exposed inside the blower case, it will not be damaged or get in the way of air blowing, and there will be no adhesion or accumulation of dust. It does not cause any problems, looks good, and provides reliable grease supply.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional view of the blower section, and FIG.
3 is a sectional view taken along the line of FIG. 2, and FIG. 4 is an overall perspective view of the speed sprayer. 4... Blower, 5... Impeller, 9a, 9b... Bearing, 10a, 10b... Oil supply section, 11a, 11b
...Refueling pipe, 13...Fixed wing, 1b...Hollow part,
14a, 14b...Grease nipple for refueling.

Claims (1)

[Scope of utility model registration request] Oil supply parts 10a, 10 of bearings 9a, 9b of impeller 5
Oil supply pipes 11a and 11b extended from b,
A blower bearing lubricating device for a speed sprayer, characterized in that the blower bearing lubricating device is connected to lubricating grease nipples 14a and 14b provided outside the blower case 6, etc., through the hollow portion 13b of the fixed blade 13 of the blower 4.