JPH0353639Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an oil supply device for a reaping machine such as a combine harvester or a binder.

Generally, the pretreatment section of this type of reaper includes a reaper,
It is preferable to provide an oil supply device in order to properly supply lubricating oil to operating parts such as the stem culm combing body and the stem culm transporting body for smooth reaping operation. Therefore, it is known that an oil supply device including a manual hydraulic pump or the like is provided. However, since this is a manual type, the capacity of the hydraulic pump is inevitably limited, and it is not possible to supply oil to multiple locations at the same time. Therefore, a separate switching valve is installed to switch the oil supply locations as necessary. However, since this switching valve was installed in the middle of the piping from the hydraulic pump to the nozzle, it was necessary to secure a separate installation location where it would not interfere with other parts, and it was installed separately from the operating lever. In addition to the need to hold and operate the switching lever for the switching valve each time, the switching valve is also located apart from the oil supply pump, making switching operations cumbersome and often forgetting to operate. There are drawbacks and problems.

The present invention was devised to eliminate these drawbacks in view of the above-mentioned circumstances, and although it uses a manual hydraulic pump to supply oil to multiple locations, it By making switching possible using the operating lever of the hydraulic pump, there is no need to secure a special installation location for each switching valve, and the switching operation becomes easier and easier to operate. The object of the present invention is to provide a refueling device for a reaper that can effectively eliminate forgetting, and in particular, in a refueling device in which a hydraulic pump is operated by manual reciprocating movement of a control lever, it is possible to effectively eliminate forgetting of oil from the hydraulic pump. A cylindrical switching valve case is provided on the hydraulic pump that communicates with the inflow pipe of the hydraulic pump, and the switching valve case is provided with a plurality of outflow pipes that communicate with the nozzle facing the oil supply area, while a communication passage is provided on the operating lever. The switching valve is fitted into the switching valve case so that its position can be changed, and the pressure oil from the inflow pipe is selectively communicated with one of the outflow pipes by changing the position of the operating lever. It is characterized by:

Next, the present invention will be explained in more detail based on an embodiment shown in the drawings. In the drawings, reference numeral 1 denotes a traveling body of a combine harvester, and a pretreatment section 2 is installed at the front of the traveling body 1 so as to be able to move up and down. 3 is adapted to transmit power from a gear case 4 interlockingly connected to the lower end of the transmission cylinder 3 to the combing case 5 side. On the other hand, the proximal end of the cutting blade frame 6 is attached to the gear case 4 and supports the cutting blade 7, and a grass splitting body 8 is attached to the front end.

Reference numeral 9 denotes a bracket, and the bracket 9 has mounting pieces 3a and 5a protruding from approximately the central portions of the front side of the transmission cylinder 3 and the back side of the push-up case 5, respectively.
They are fastened together with a tightening bolt 9a between them.
An oil supply device A consisting of an oil tank 10, a hydraulic pump 11, etc. is attached to this bracket 9.
The hydraulic pump 11 is configured to operate by swinging around a support shaft 13b of an operating arm 13 to which a cylinder shaft 11a is attached at one end. Also,
12 is an operating lever of the hydraulic pump 11, and the base end of the operating lever 12 is connected to a cylindrical switching valve case 1 integrally provided on the other end side of the operating arm 13.
As will be described later, it is fitted into the switching valve case 13a so as to be vertically movable, thereby forming a switching valve integrally with the switching valve case 13a. The operating lever 12 is located at a position where the operating arm 13 with the switching valve case 13a and the operating arm 13 with which the switching valve case 13a is integrated is protruded from the outer edge of the lever case 5, as shown in FIG. (Virtual line position)
The cylinder shaft 11a of the hydraulic pump 11 is moved in and out by the swinging movement of the operating lever 12. Pressure oil is forced to be fed from the bottom surface of the switching valve case 13a via the inflow pipe 14.

On the other hand, on the circumferential surface of the switching valve case 13a, there is an upper outflow pipe 15 that is interlocked with the nozzle 15a provided on the cutting knife 7 and the combing case 5, and conveys the cut stem culm group to the threshing section 16 side. Stem culm carrier 17
The base end portion of the lower outflow pipe 18, which is interlocked and connected to the nozzle 18a provided in the lower side, is attached in two stages with the upper and lower positions changed.

In addition, a communication hole 12, which serves as a communication path in this embodiment, is provided at the fitting portion of the operating lever 12 into the switching valve case 13a.
a is drilled, and when the operating lever 12 is moved to the upper position, the communication hole 12a communicates and connects the inflow pipe 14 and the outflow pipe 15 to the cutting blade 7, etc., as shown in FIG. In addition, when the operating lever 12 is moved to the lower position, the communication hole 12a connects the inflow pipe 14 and the outflow pipe 18 to the stem culm carrier 17 side, as shown in FIG. It's summery.

Reference numeral 19 denotes a pin body implanted in the operating lever 12. The pin body 19 is fitted into a spring seat 20 integrally provided in the switching valve case 13a, and is used to position the operating lever 12 in the above-mentioned vertical position. It is structured as follows. In addition, the operating lever 12 is marked with "slash section" and "carrying section" at a position corresponding to a guide hole 22a formed in the cover 22 for the operating lever 12 to pass through.
When the control lever 12 is moved to the upper position, the mark of the "cutting blade part" is located exactly at the guide hole 22a position, and when the operating lever 12 is moved to the lower position, the mark of the "carrying part" is located exactly at the guide hole 22a position. It is located at the position of the hole 22a, so that the operator can visually see to which position the operating lever 12 has been displaced.

In addition, in the figure, 23 is a stem culm guide plate provided on the back side of the combing case 5, 24 is a packing, and 25 is a side cover.

In the embodiment of the present invention configured as described above, when refueling the cutting blade 7 and the combing case 5, the operation lever 12 is moved to the upper side where the inflow pipe 14 and the upper outflow pipe 15 are in a communicating state. If the shaft 13b is used as a fulcrum to swing the hydraulic pump 11 in the horizontal direction while the pump is in this position, the pressure oil from the hydraulic pump 11 will flow from the nozzle 15a via the inflow pipe 14, the switching valve case 13a, and the upper outflow pipe 15. The karikatto 7 and the combing case 5 are refilled with oil. On the other hand, when refueling the stem culm carrier 17, the operating lever 12
The support shaft 1 is moved to the lower position where the inflow pipe 14 and the lower outflow pipe 18 are in a communicating state.
3b as a fulcrum, the pressure oil from the hydraulic pump 11 is in turn transferred to the switching valve case 13.
a to the nozzle 18a via the lower outflow pipe 18
The stem and culm conveying body 17 will be supplied with oil.

As described above, in the present invention, the operating parts such as the cutting blade 7 and the stem culm carrier 17 can be oiled by the manual hydraulic pump 11, and the switching valve case 13a is provided to supply oil to these driving parts. Although the control lever 12 is integrated with the switching valve case 13a to form a switching valve, the conventional switching valve is not provided separately. Unlike the above, there is no need to secure a special installation location for the switching valve, the switching valve can be automatically configured by attaching the operating lever 12, and the fuel supply device A can be made more compact. Furthermore, since the operating lever 12 can be used to operate both the hydraulic pump 11 and the switching valve, there is no need to operate the switching lever that is unique to the switching valve, unlike when a switching valve is provided separately. This eliminates the need to change the lever and almost eliminates the possibility of forgetting to switch the lever, thereby significantly improving not only the operability but also the work efficiency.

Moreover, in this embodiment, the operating lever 12
When not in use, it can be stored on the back side of the combing case 5 so that it does not protrude from the combing case 5, so it does not get in the way. There is no inconvenience such as the lever 12 getting caught on uncut stem culms, etc., and the operation of the hydraulic pump 11 by the operating lever 12 is carried out from the storage position on the back side of the combing case 5 and from the combing case 5. Since the operation can be performed by swinging the operation lever 12 in the lateral direction between the two positions, the operation can be performed with confidence without worrying that the hand holding the operation lever 12 will hit other members provided inside the preprocessing section 2. can.

Furthermore, the oil supply device A includes a pumping case 5 and a transmission shaft 3.
Bracket 9 in a state where it is connected at approximately the center between
Since the bracket 9 is attached to the bracket 9, it has the advantage that the pretreatment part can also be reinforced, which is extremely convenient.

Although the present invention is of course not limited to the above-mentioned embodiment, the switching mechanism of the switching valve using the operating lever 12 may be performed by rotating the operating lever 12 as shown in FIG. 7, for example. It is a good thing to do.

In summary, the present invention provides a refueling device in which a hydraulic pump is operated by manual reciprocating movement of an operating lever, in which a cylindrical switching valve case communicating with an inflow pipe from the hydraulic pump is installed adjacent to the hydraulic pump, and the switching valve The case is provided with a plurality of outflow pipes leading to the nozzle facing the refueling part, while the operating lever is provided with a communication passage, and is fitted into the switching valve case so as to be able to change its position to form a switching valve, and the operating lever Pressure oil from the inflow pipe can be selectively communicated with either of the outflow pipes by changing the position of the pipe, so it is possible to supply oil to any desired oil supply location using a manual hydraulic pump and by switching the oil supply to any location using a switching valve. However, since the operating lever for operating the hydraulic pump and the switching valve case are integrated to form the switching valve, there is no need to secure a separate installation location for the switching valve, and the oil supply system can be easily installed. This will significantly contribute to compactness.

Moreover, the switching operation of the switching valve can be performed using the operating lever for operating the hydraulic pump instead of using a dedicated switching lever, which eliminates the need to change the lever, significantly improving work efficiency and operability. This provides practical effects such as being able to perform ideal lubrication without forgetting to switch.

[Brief explanation of drawings]

The drawings show an embodiment of the oil supply device for a reaper according to the present invention, in which Fig. 1 is a side view of the main parts of the combine, and Fig. 2 shows a state in which the operating lever is moved to an arbitrary position. Rear view of main parts shown, 3rd
The figure is an enlarged view of the main part of the same as above, Fig. 4 is a rear view of the main part showing a state in which the operating lever is moved to another position, and Fig. 5
The figure is an enlarged view of the main part of the same as above, FIG. 6 is a rear view of the main part showing a state in which the operation lever protrudes from the drawer case, and FIG. 7 is a sectional view of another example of the switching valve. 11...Hydraulic pump, 12...Operation lever, 1
2a...Communication path, 13a...Switching valve case, 14
...Inflow pipe, 15,18...Outflow pipe.

Claims (1)

[Scope of utility model registration request] In a refueling device in which a hydraulic pump is operated by manually reciprocating a control lever, a cylindrical switching valve case communicating with an inflow pipe from the hydraulic pump is installed adjacent to the hydraulic pump, and the switching valve case faces a refueling part. A plurality of outflow pipes leading to the nozzle are provided, while a communicating path is provided in the operating lever,
The switching valve is fitted into the switching valve case so that its position can be changed, and the pressure oil from the inflow pipe is selectively communicated with one of the outflow pipes by changing the position of the operating lever. Lubricating device for reaping machines.