JPH0345558Y2 - - Google Patents

Description

[Detailed description of the invention] In general, the driving part of a clipper blade type cutting blade, especially the connecting part between the knife head and the driving member, has a very small part that moves left and right, so even if oil is applied from a fixed nozzle, the amount that hits the connecting part is small. Conventionally, the connecting parts were hardly lubricated, and as a result, the abrasion was severe, and even a small amount of abrasion resulted in severe vibration and noise.

In addition, the stock base of the harvested grain culm, which has a large amount of mud and straw debris, passes above the knife head.
When lubricating oil spilled or spouted from a fixed nozzle is received and refilled with a saucer, the unlubricated parts are filled with the lubricating oil mixed with mud, making it impossible to prevent wear accurately.

Furthermore, as mud and straw debris accumulates on the saucer and hardens, the lubricating oil from the fixed nozzle flows over the top surface of the hardened mud and flows out to the outside, becoming wasted and unable to lubricate. There were other problems.

The purpose of the present invention is to improve the above-mentioned drawbacks.A movable blade is mounted on a fixed blade fixed to a reaping frame so as to be slidable from side to side, and a knife head fixed to the movable blade is driven back and forth. In a harvester connected to the mechanism, a horizontal saucer with an opening on the side of the knife head is installed on the left and right sides of the knife head connector, and a piece of sponge, felt, etc. with a thickness approximately equal to the depth of the tray is installed inside the saucer. The device is characterized in that a filter medium is housed therein, and a lubricating nozzle is provided above the saucer.

The embodiments shown in the drawings will be explained below.
Reference numeral 1 denotes a combine harvester base having a traveling device 2, which is equipped with a threshing device, a control section, a paddy processing section, an engine, etc., and a grass cutting body 4 attached to a reaping frame 3, a grain culm puller, etc. on the front part. Body 5, cutting blade 6, raking ring 7, 7, stock raking chain 8, 8, stem raking band 9,
Between the reaping device and the threshing device, a grain culm conveying device consisting of a stock-end clamping conveyor 10 and a ear-side conveyor 11 is provided, and a grain culm conveying device consisting of a stock-end clamping conveyor 10 and a ear-side conveyor 11 is provided between the reaping device and the threshing device. It is mounted so that it can be tilted up and down to adjust the handling depth.

The cutting blade 6 is composed of a fixed blade 14 attached to the cutting frame 3 via a support frame 13 and a movable blade 15 that slides back and forth from side to side on the fixed blade 14. The knife head 16 fixed to has an elongated hole 16a in the front-rear direction at the top,
The balance weight 1 is pivotally supported on the fulcrum shaft 17.
A triangular cutting blade drive member 19 equipped with a mower 8 reciprocates with the back and forth movement of a piston rod 20, and a collar 22 inserted into a pin 21 protruding from its front end penetrates through the long hole 16a of the knife head 16. Since the movable blade 15 is inserted, when the cutting blade drive member 19 operates, the movable blade 15 reciprocates left and right.

A lubricating oil tank 24 and an oil pump 25 are attached to the support frame 23 of the grain culm lifting body 5, and the lower end of a hose 26 connected to the oil pump 25 is supported by a support arm 27 from the cutting blade frame 3. A saucer 30, which is open on the side of the slot 16a, is fixed to the upper surface of both sides of the slot 16a bored in the knife head 16, and a saucer 30 with a thickness substantially equal to the depth of the slot 16a is fixed in the slot 30. A filter material 29 made of sponge or felt is installed inside, and the oil nozzle 28 is connected to a pin 21 as shown in FIGS.
The receiving tray 30 has a length such that the side portion of the receiving tray 30 faces directly below the oil filling nozzle 28 even when the knife head 16 reaches the end of lateral movement.

When the piston rod 20 moves back and forth and the cutting blade drive member 19 reciprocates, the movable blade 15 reciprocates in the lateral direction together with the knife head 16, and during this time the collar 22 inserted through the pin 21 closes in the elongated hole 16a.
The lubricating nozzle 28 moves lubricating oil back and forth inside the pin 2.
1 and onto the saucer 30, this squirted lubricating oil flows down from the top of the pin 21 and lubricates between the pin 21 and the collar 22, and on the other hand, it flows into the filter medium 29 in the saucer 30. permeates into the opening, flows down the outer circumferential surface of the collar 22, and lubricates the inner circumferential surface of the elongated hole 16a, making it possible to prevent wear of the collar 22 and the elongated hole 16a. All the lubricating oil injected from the oil filling nozzle 28 is received by the saucer 30, so that no lubricating oil is wasted.

In addition, even if soil or straw debris falls onto the filtering material 29 from the base of the grain culm, the injected lubricating oil will penetrate the filtering material 29, so the soil, etc. will remain on the upper surface of the filtering material 29. Good lubrication can be achieved without flowing out into the connecting parts.

Furthermore, the thickness of the filter material 29 is equal to the depth of the saucer 30, and its upper surface is close to the upper edge of the saucer 30, so that the end of the stock of the harvested grain culm, which is raked in, can be oiled, but it is Since the soil is swept out together with the straw waste, there is less accumulation of soil and the like, and cleaning can be performed easily.

Next, the cutting blade oiling device will be explained with reference to FIGS. 6 to 8. The lower end of the other oil guide pipe 31 hanging down from the oiling pump 25 is made to face the middle part of the movable blade 15 and branched to both sides. a bellows 34 having a valve 32 and a nozzle 33 at its outer end;
34 and a plate 35 extending from the outer ends of the bellows 34, 34 and the reaping frame 3;
A return spring 36 is interposed between the bellows 34, and when lubricating oil is intermittently pumped from the oil supply pump 25 consisting of the plunger pump, the valve 32 is pushed open and press-fitted into the bellows 34, 34. As a result, the bellows 34, 34 expand while compressing the return spring 36, as shown in FIG. 7, and when the lubricant pumping is stopped, the compressed return spring 36 pushes back the outside of the bellows 34, 34. When the valve 32 closes, the lubricating oil contained therein is forced out from the nozzle 33 and sprayed onto the movable blade 15.

The present invention provides a harvester in which a movable blade is mounted on a fixed blade fixed to a reaping frame so as to be slidable left and right, and a knife head fixed to the movable blade is operatively connected to a reciprocating drive mechanism, as described above. A horizontal saucer with an opening on the side of the connecting portion is installed on the upper left and right sides, and a filter material made of sponge or felt with a thickness approximately equal to the depth of the saucer is stored in the saucer, and oil is applied above the saucer. Because the nozzle was installed temporarily, the lubricating oil flowing out from the oil nozzle is reliably caught by the saucer, even though the connecting part between the knife head fixed to the movable blade and the reciprocating drive mechanism moves back and forth from side to side. There is almost no chance of it falling to the top and being wasted.

In addition, the stock base of the harvested grain culm moves while rubbing on the knife head and saucer, and a large amount of soil and straw debris falls from this stock base, but the lubricating oil that has fallen into the saucer is filtered by the filtering material. After being filtered, the lubricant flows out from the opening and is lubricated to the lubricated parts in a state containing almost no soil or the like, thereby preventing abnormal wear of the operating parts due to soil.

Furthermore, since the upper surface of the filtering material is approximately equal to the upper surface of the peripheral edge of the dish, even if soil or straw debris accumulates on the filtering material, it can be easily removed.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a side view of the front part of the combine, Figure 2 is a plan view of the lubrication system, Figures 3 and 4 are sectional views of the connection between the knife head and the cutting blade drive unit, and Figure 5 is a perspective view of the same as above. 6 are front views of the cutting blade lubricating device, and FIGS. 7 and 8 are sectional views of essential parts of the same device. 14... fixed blade, 15... movable blade, 16... knife head, 19... cutting blade drive member, 20... piston, 28... oil nozzle, 30... saucer.

Claims (1)

[Scope of utility model registration request] In a harvester in which a movable blade is mounted on a fixed blade fixed to a reaping frame so as to be slidable from side to side, and a knife head fixed to the movable blade is operatively connected to a reciprocating drive mechanism, the knife head is connected to the left and right sides of the knife head connecting part. A horizontal saucer with an open side is installed, a filter material made of sponge or felt having a thickness approximately equal to the depth of the saucer is housed in the saucer, and an oil nozzle is provided above the saucer. A cutting blade lubrication device for a harvester.