JPS6015997Y2 - Centralized lubrication system - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a centralized lubrication device that simultaneously lubricates multiple lubrication points such as chains and cutting blades in combine harvesters and the like.

In recent years, it has become difficult to lubricate agricultural machinery such as combines, as moving parts have been covered due to stricter safety standards.For this reason, central lubrication devices are installed, but the The oil nozzle in the part that passes through the inside and the base of the stock,
It was easy for mud etc. to adhere and harden and clog the waist hole.

Also, mud, weeds, etc. may adhere to or get caught on the cutting blade itself.
Mud puddles and grass puddles were likely to occur.

Therefore, in the present invention, a branch pipe with a nozzle located in a place where mud etc. tends to adhere, such as the cutting blade part, is installed with a check valve at both ends, so that one end is used as an oil pump and the other end is used as an air pump. It is an object of the present invention to provide a central oil supply device which eliminates the above-mentioned drawbacks by ejecting air from a nozzle that is connected and constructed during work.

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

As shown in FIG. 1, the combine 1 has a machine body 3 supported by crawlers 2. A driver's seat 5 is disposed on the front side of the machine body 3, and a Pre-processing section 6
is arranged so that it can be raised and lowered freely.

The central oil supply device 10 is equipped with a central oil supply device 10 that can oil a large number of oil supply points such as the scooping chain 7 and the culm conveyance chain 9. The central oil supply device 10 includes an oil tank 11, an electric oil pump 12, and a large number of oil supply points It consists of nozzles 13 installed at certain locations and piping 15 that communicates these.

Further, as shown in detail in FIG. 2, a cutting blade 16 and a number of scraping star wheels 17 are disposed at the lower end of the pretreatment section 6, and the cutting blade 16 holds the receiving blade 16a at a predetermined location. It has a plurality of fixed blade holders 16b, and the star wheel 17 is rotationally driven by a transmission device built in a drive gear case 17a.

Then, some of the nozzles 13a of the plurality of nozzles 13 are directed toward the cutting blade 16, especially the blade holder 16b portion thereof...
・ are installed by the mounting plate 19, and these nozzles 1
3a is branched from the main pipe 15 by a branch pipe joint 20,
Furthermore, they are communicated via a check valve 21.

Further, an oiling switch 22 is arranged on the driver's seat 5, and the switch 22 is connected to a battery 23 and an electric oil pump 12. Also, the husk conveying chain 9 is equipped with a grain culm that can detect the flow of the culm. A culm detection sensor 24 is provided.

On the other hand, as shown in FIG. 3, an electric air pump 25 is installed at the other end of the branch pipe 15a having the nozzle 13a. It is connected to the other end.

The air pump 25 is connected to a grain culm detection sensor 24, as shown in FIG.

As shown in FIG. 5, the check valves 21 and 27 have a ball 30 that is urged by a spring 28 to come into close contact with the valve seat 29, so that the flow in the direction of the arrow,
In other words, although the inflow into the branch pipe 15a is allowed, the branch pipe 'fi
15a is configured to prevent outflow.

Since the present embodiment has the above-described configuration, when the grain culm detection sensor 24 detects a husk, that is, when the combine harvester 1 is in the process of reaping, the air pump 25 is driven and high-pressure air is supplied to the air conduit 26 and the checker. It is introduced into the branch pipe 15a via the valve 27, and the cutting blade 1 is introduced from the nozzle 13a...
6. Blow high-pressure air toward the blade holder 16b, where mud puddles and the like are particularly likely to occur.

As a result, the nozzle 13 located at the lower end of the pretreatment section 6
Even if the nozzle a is immersed in muddy water or comes into contact with the base of the stock, the nozzle 13
A is not clogged, and at the same time, mud, weeds, etc. adhering to the cutting blade 16 are blown away by high-pressure air.

At this time, the air introduced into the branch pipe 15a is prevented from flowing out by the check valve 21 at the other end, and the air introduced into the branch pipe 15a is prevented from flowing out.
5, no air will enter.

Then, when the operator stops the reaping operation and turns on the oiling switch 22, the oil pump 12 is driven.
The lubricating oil in the oil tank 11 is led to a large number of nozzles 13 via a pipe 15, and the lubricating oil is injected from the nozzles 13 to simultaneously lubricate a large number of locations that require lubrication.

At this time, the pressure oil from the oil pump 12 is transferred to the branch pipe joint 2.
The lubricating oil is introduced into the check valve 21 through the valve 21 through the spring 28 and released from the valve seat 29, and the lubricating oil is introduced into the branch pipe 15a and is ejected from the nozzle 13a to lubricate the cutting blade 16 as well.

At this time, the lubricating oil in the branch pipe 15 is prevented from flowing out by the check valve 27 at the other end, so that the lubricating oil does not enter the air conduit 26.

As explained above, according to the present invention, the central oil supply device 1
Although the nozzle 1 of the cutting blade 16 portion of the combine 1
3a etc., the air pump 25 is connected to the other end of the branch pipe 15a, which has a nozzle that is likely to be clogged with mud or the like, through a check valve 27.
Even if the nozzle 3a is immersed in muddy water or comes into contact with the base of the plant, high pressure air is blown out from the nozzle 13a during work, thereby reliably preventing the nozzle from clogging.

Further, the air ejected from the nozzle 13a is ejected to areas where mud puddles and grass puddles are likely to occur, such as the cutting blade 16,
By blowing away mud, weeds, etc., it is possible to prevent the formation of mud puddles and grass puddles.

In addition, branch piping 15a and nozzle 13 of central oil supply device 10
Since air is blown using the check valve 21.a, it is sufficient to simply connect the air pump 25 to the branch piping, making it possible to manufacture it at low cost, and also to add and install it to the existing central oil supply system 10. 27, there is no possibility that air will enter the main pipe 15 of the central oil supply system 10 or air will enter the air pump 25, causing trouble.

Furthermore, the air pump 25 is connected to the culm of the grain culm detection sensor 24,
When activated by detection, air can be reliably blown out during mowing work without the operator having to operate a switch, eliminating problems caused by erroneous operation or forgetting to operate.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a combine harvester to which the present invention is applied, Fig. 2 is a perspective view of its cutting blade, Fig. 3 is a diagram showing an outline of the invention, and Fig. 4 is a circuit diagram. oil pump, b
5 is a diagram showing the connections of the air pump, and FIG. 5 is a sectional view showing the check valve. 10... Central oil supply device, 11... Oil tank, 12... Oil pump, 13...
... Nozzle, 13a ... Nozzle located in a place where mud etc. tends to adhere, 15 ... ... Piping, 15a
...Branch piping, 16...Mowing blade, 21...
... Check valve, 25 ... Air pump, 27 ... Check valve.

Claims (1)

[Scope of utility model registration request] In a centralized lubrication system consisting of an oil tank, an oil pump, nozzles installed at numerous lubrication points, and piping that connects these, branch piping with nozzles located in locations where mud, etc. are likely to adhere is removed at both ends. A central oil supply system having one end connected to the oil pump and the other end connected to the air pump with a check valve interposed therebetween to prevent outflow from the branch piping.