JPH10276552A - Automatic lubrication system used for combine etc. - Google Patents

Abstract

(57) [Problem] To provide a conventional automatic lubricating device, when a tip suction port of an oil absorbing hose is separated from an oil surface in order to replenish new lubricating oil to an oil tank, air is introduced into the hose. Was flowing. When the oil-absorbing hose is inserted from a new lubricating oil surface which has been supplied with a suction port as it is and the lubricating pump is driven, an air layer is generated in the middle of the hose and the suction operation is disabled. There were challenges. The present invention employs the following solution in order to solve the above-mentioned problems. That is, an oil suction hose 2 is provided on the suction side of the lubrication pump 1 having a lubricating oil feeding function, and an oil feeding hose 3 is provided on the oil feeding side, respectively.
The oil feeding hose 3 allows the oiling nozzle 4 attached to the tip to face a lubricating point of the machine, and the oil absorbing hose 2
Constitutes an automatic lubrication device by communicating with the oil tank 5,
An automatic lubricating apparatus for use in a combine or the like having a closed air chamber 6 in which an intermediate portion of the oil feeding hose 3 can temporarily store high-pressure air compressed by pressure oil sent from an oil pump 1. It is what it was.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic lubricating device used for a combine or the like and belongs to the technical field of agricultural machinery.

[0002]

2. Description of the Related Art Conventionally, agricultural machines such as combine harvesters include:
To ensure smooth operation of the machine and improve durability,
The operating point is equipped with a device that automatically lubricates the lubricating oil. In this case, the lubricating pump is configured to interlock with the operation of the specific device of the machine body (for example, interlock with the raising / lowering operation of the reaper) or to be manually driven to lubricate the rotating parts of the mechanical device. .

[0003]

In this type of automatic lubricating apparatus, an oil-absorbing hose is provided on one suction side of the lubricating pump, and an oil-supplying hose is provided on the other oil-transmitting side thereof. Oil ho
The lubricating nozzle has a lubricating nozzle attached to a tip thereof facing a lubricating point of the machine, and an oil absorbing hose is inserted into lubricating oil of an oil tank. In this configuration, the oil absorption hose is
When the tip suction port is separated from the oil surface to supply new lubricating oil to the oil tank, air flows into the hose. When the oil suction hose is inserted from the new lubricating oil surface with the replenished tip suction port while the air is flowing into the inside, and the lubrication pump is driven,
There is a problem that an air layer is generated in the middle of the hose and the suction operation becomes impossible.

[0004]

The present invention takes the following technical means in order to solve the above-mentioned problems. That is, an oil pump 1 having a lubricating oil feeding function is provided, and an oil suction hose 2 is provided on the suction side of the oil pump 1.
The oil supply hose 3 is provided on the oil supply side in communication with the oil supply hose. The oil supply hose 3 has a lubrication nozzle 4 attached to the tip end facing a lubrication point of the machine, and the oil absorption hose 3 Numeral 2 is provided in communication with the oil tank 5 to form a sealed air chamber 6 in the middle of the oil feed hose 3 in which high-pressure air compressed by the sent pressure oil can be temporarily stored. This is an automatic lubrication device used for combine harvesters.

[0005]

Embodiments of the present invention will be specifically described below with reference to the drawings. First, the configuration will be described. The traveling vehicle body 7 has a configuration in which a crawler 8 formed of a rubber material is wound around a driving sprocket 9 and a plurality of idler wheels 10 so that it can travel without sinking not only in a dry field but also in a wet field. And threshing device 1
1 has a feed chain 12, a handling chamber with a handling cylinder mounted on the upper side, a sorting chamber on the lower side, and a mechanism for threshing and sorting the supplied harvested grain culm on the traveling vehicle body 7. It is installed.

[0006] Next, the pre-cutting device 13 pivotally connects a rear portion of the cutting frame 15 extending forward and downward to a support 14 provided at a front portion of the traveling vehicle body 7 so as to be freely rotatable. The mowing frame 15 is provided with a mowing device 16 and a grain culm transport device 17. That is, the pre-cutting device 13
At the lower part of the front end, a culm grazing rod 18 is provided, and at the rear thereof, a cereal stem raising device 19 having an inclined shape is provided.
Further, a series of grain culm transport including a grain stalk scraping device 20, a front transport device 21, a supply adjusting device 22, and the like, between the vicinity of the cutting device 16 and the starting end of the feed chain 12 described above. The apparatus 17 is arranged and attached to the above-mentioned mowing frame 15 so as to be capable of transmission.

[0007] The pre-cutting device 1 configured as described above.
Numeral 3 is configured to freely move up and down by a mowing elevating cylinder 23. And the automatic lubrication device is a pre-cutting device 1
The lubricating oil can be automatically lubricated into lubricating points such as a rotating part and a sliding part of the third, a rotating drive part and a sliding guide part of the feed chain 12 constituting the threshing device 11. This is described below.

First, the lubrication pump 1 normally uses a gear pump, and as shown in FIG.
It is attached to and supported. And the lubrication pump 1
It is configured such that it can be driven by a switch operation from the cockpit by an electric motor that is integrally incorporated. The oil suction hose 2 is connected to the suction side and inserted so that the lubricating oil in the oil tank 5 can be sucked. The oil feed hose 3 is connected to the oil feed side.

Next, the oil tank 5 is mounted at an intermediate position of the raising support frame 24, and an upper limit (highest non-working position) and a lower limit (minimum cutting position) of the pre-cutting device 13 are set. The structure is such that it can be filled with as much lubricating oil as possible while maintaining a substantially horizontal state at the intermediate position. In addition, the oil tank 5 is supported in a swinging freely suspended state in order to fill a larger amount of lubricating oil, so that the oil tank 5 always keeps a substantially horizontal state without being affected by changes in the elevation angle of the pre-cutting device 13. It is good also as a hanging structure so that it may keep.

The oil feed hose 3 has a base communicating with the oil feed side of the oil pump 1 and an oil feed nozzle 4 attached to the tip thereof so that it can be oiled by piping to the above-mentioned oil feed points. Make up. Next, in the configuration example shown in FIG. 1, the air chamber 6 communicates with an intermediate portion of a loop hose 26 at a tip end of a bypass hose 25 which is communicated in the middle of the oil feed hose 3 described above. The oil flows in from both ends of the loop hose 26. Therefore, the loop hose 26
Is a closed air chamber 6, which is configured to temporarily store compressed air in oil flowing in from both sides. The air chamber 6 of another configuration example shown in FIG. 2 is provided with a bypass hose 25 communicating with the oil feeding hose 3 in the middle.
A spherical air reservoir is provided in communication with the tip end of the airbag, and is configured to temporarily store high-pressure air that has been compressed by lubricating oil fed to reach atmospheric pressure or higher.

Another Embodiment Next, another embodiment shown in FIGS. 5 to 7 will be described. First, as shown in FIG. 5, the mowing frame 15 has its rear end pivotally attached to a support base 14 on the traveling vehicle body 7 so as to be freely rotatable up and down, and has its front end extended downward and forward to transmit the transmission frame. Are connected to each other. The harvesting frame 15 is provided with a transmission shaft. Then, raise the support frame 2
Reference numeral 4 denotes a transmission shaft 31 with an inner shaft mounted thereon, and a lower portion of the transmission shaft 31 described above.
A gear box 33 in which a transmission 32 is mounted is fixedly connected to an upper portion of the gear box 33. Further, the hanging transmission frame 34 has a configuration in which the upper portion is connected to an extension portion integral with the gear box 33, and the lower portion is connected to and supported by the upper portion of the grain stem raising device 19.

The weeding frame 35 has a rear part formed by the transmission casing.
And is extended forward along a low position, and a cereal stem weeding rod 18 is fixedly connected to the front end. As described above, the grain stem raising device 19 has an upper portion connected to the hanging transmission frame 34 and a lower portion supported by the weeding frame 35. The connecting frame 36 has a lower portion connected to the weeding frame 35, extends upward, and has an upper end connected to the upper portion of the gear box 33. In the case of the configuration example shown in FIG. 6, the connection frame 36 has an upper end connected to a lower portion of the gear box 33.

[0013] The pre-cutting device 13 constitutes a frame in the framework as described above,
Grain stem scraping device 20, front transfer device 21, supply adjusting device 2
2 and the like are attached to each other. As described above, in the pre-cutting device 13, as apparent from the side view shown in FIGS. 5 and 6, the cereal stem raising device 19 connects the upper part to the hanging transmission frame 34 on the front side, The lower part is fixed to the weeding frame 35 to form a frame, and in addition to this, the weeding frame 35 on the bottom side, the raised support frame 24 on the rear side, and the front side An extremely strong triangular frame is integrally formed by the three members of the connecting frame 36.

Therefore, even if the tip of the stalk rod 18 collides with a ridge or the like during the operation, the pre-cutting device 13 has almost no effect on the frame structure, and the frame is not affected. It hardly deforms or breaks. Further, since the stiffness of the frame structure is increased in the pre-cutting device 13, the reciprocating type cutting device 16 is less affected by the reciprocating vibration, and has a practical effect of performing a stable cutting operation.

Next, the operation will be described. First,
The engine is started and the traveling body 7 is moved forward while driving the rotating parts of the body to start the harvesting and threshing work. Then
The cereal culm in the field is subjected to the weeding action by the cereal culm weeding rod 18 at the lower front end, and then the culm raising device 19 raises the culm from the falling state to the upright state by the raising action of the cereal culling raising device 19. The root of the stock that has been scraped and reaches the reaper 16 is reaped. Then, the grain culm is inherited by the front conveying device 21 and continuously conveyed rearward and upward, and is supplied to the supply adjusting device 22 from the end portion thereof and further conveyed.

In this manner, the cereal culm is sequentially conveyed, is inherited from the end of the feed control device 22 to the beginning of the feed chain 9, and is conveyed in a state where the roots of the grain are pinched. Is inserted into the handling room, passes therethrough, and is threshed by the rotating handling cylinder. Then, the thresh-processed product reaches the lower sorting room and is sorted by the action of the sorting wind and the swing sorting device.

As described above, the combine continuously performs harvesting and threshing work, harvests and selectively collects and stores threshed grains in a Glen tank. During such work, the operator starts the electric motor from the cockpit by operating a switch periodically or as necessary, and operates the lubrication pump 1.
Is operated, the lubricating oil is sucked from the end of the oil suction hose 2, sent to the oil feed hose 3 via the oil injection pump 1, and is pressure-fed to the front end side. The lubricating oil is ejected from the lubrication nozzle 4 at the tip to the outside, and is lubricated at the lubrication point to perform a lubrication action.

During the lubricating operation as described above, the lubricating oil being fed under pressure is also sent to the bypass hose 25 so that the air inside from both sides of the loop hose 26 is compressed and stored. Reach. In this case, the air chamber 6
When the lubricating oil in the oil tank 5 becomes low and the replenishing time comes, when the internal air pressure is to be further increased immediately before that, if the lubricating nozzle 4 is closed and the lubricating pump 1 is driven, the lubricating oil far exceeds the atmospheric pressure. High pressure air can be stored.

In such a state, the oil absorbing hose 2 is
The lubricating oil is replenished to the oil tank 5 by separating its end from the oil surface of the oil tank 5.
The compressed air in the air chamber 6 expands in order to return to the atmospheric pressure, and the oil compressed from both sides is bypassed.
Then, the oil is returned to the oil supply hose 3 and further returned to the oil suction hose 2 through the oil supply pump 1. As described above, the oil flowing backward in the oil-absorbing hose 2 discharges the outside air which tries to enter the inside from the opening at the end to the outside of the hose,
The entire flow path from the oil pump 1 to the suction port of the oil suction hose 2 is filled with oil.

Then, the oil suction hose 2 has its suction port inserted into the newly supplied lubricating oil in the oil tank 5 to complete the preparation for the next lubrication. As described above, when the new lubricating oil is supplied to the oil tank 5, the automatic lubricating apparatus according to the present invention fills the oil absorbing hose into which the outside air is about to enter with the backflowing oil, and releases the air outward. Since it is driven out, the pump operation from the next time can be performed accurately.

[0021]

According to the present invention, there is provided a lubricating pump having a function of feeding lubricating oil, and an oil absorbing hose is connected to a suction side of the lubricating pump, and an oil feeding hose is connected to the lubricating side. Provided,
The oil feed hose has a lubrication nozzle attached to a tip thereof facing a lubrication point of the machine, and the oil suction hose is provided in communication with an oil tank, and in a middle part of the oil feed hose, Because it constitutes a closed air chamber that can temporarily store high-pressure air compressed by the sent pressure oil,
In order to replenish the oil tank with new lubricating oil, even if the suction port at the tip is separated from the oil surface, outside air does not flow into the oil suction hose, which can prevent pump suction trouble and prevent future lubrication. It has the feature that the action can be performed properly.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a side view showing another embodiment of the present invention.

FIG. 3 is a side view of the embodiment of the present invention.

FIG. 4 is a side view of the embodiment of the present invention.

FIG. 5 is a side view showing another embodiment of the present invention.

FIG. 6 is a side view showing another embodiment of the present invention.

FIG. 7 is a front view of another embodiment of the present invention.

[Explanation of symbols]

1 oil pump 2 oil absorption hose 3
Oil feed hose 4 Lubrication nozzle 5 Oil tank 6
Air chamber.

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Hisayuki Satoji 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] An oil pump having a lubricating oil feeding function is provided, and an oil suction hose is provided on a suction side of the oil pump.
The oil supply hose 3 is provided on the oil supply side in communication with the oil supply hose. The oil supply hose 3 has a lubrication nozzle 4 attached to the tip end facing a lubrication point of the machine, and the oil absorption hose 3 Numeral 2 is provided in communication with the oil tank 5 to form a sealed air chamber 6 in the middle of the oil feed hose 3 in which high-pressure air compressed by the sent pressure oil can be temporarily stored. Automatic lubrication system used for combine harvesters.