JPH0111002Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, for example, a device for lubricating a grain culm conveying chain such as a combine harvester directly lubricates the grain culm conveying chain by spraying lubricating oil with the spout of the lubrication nozzle facing the grain culm conveying chain from the side. .

However, in the direct lubrication method, lubrication can only be performed while lubricating oil is being injected, so if the grain culm conveyance chain is long, it is only possible to lubricate a portion of the chain. In addition, lubricating oil has a high viscosity in the cold season, so it does not reach the grain conveying chain, and in the hot season, the viscosity decreases, so it is sprayed out and scattered, wasting it and staining the frame, cover, etc. There were other drawbacks.

The purpose of the present invention is to improve the above-mentioned drawbacks, and the grain culm conveying chain is stretched so that its link pins are oriented substantially in the vertical direction, and
A series of guide rail plates that are gently inclined downwardly toward the chain are brought into sliding contact with the inner side of the rollers of the grain culm conveying chain, and are connected in communication with the upper surface of the guide rail plate and are gently inclined downwardly. It is characterized in that a lubricating nozzle is placed above the gutter so that its discharge port faces toward the gutter.

The embodiment shown in the drawings will be explained below.1
is a pre-processing device installed in front of the threshing device of the combine, and the front part is provided with a plurality of tillers and grain culm pulling devices similar to known ones, and the cutting blade 2
Four scraping wheels 3 are pivotally supported on the upper part of.

Also, between the raking wheels 3 and the threshing device, there is an ear-side conveyor 6 that extends from the rear of the raking passage 4 on the left side, through the rear of the raking passage 5 on the right side, to the supply port of the threshing device when seen from the front. is installed, and a stock conveyance chain is installed below it.

Furthermore, the panicle side conveyor 6 includes a conveyor chain 8 having a large number of synthetic resin lugs 7 attached at predetermined intervals;
chain 9, and intermediate scraping wheels 3, 3.
The part along the line runs approximately in the lateral direction, and the rear part runs in the front-rear direction.

A channel-shaped guide rail 10 housed in a chain case 9 is in contact with the conveying surface side of the roller 8a of the conveying chain 8, and the guide rail plate 12 welded to the bracket 11 is tilted downward. The roller 8a is in sliding contact with the inner outer circumferential surface of the roller 8a.

Reference numeral 13 denotes a gutter provided in the horizontal direction of the chain case 9, the lower end of which is welded to the upper part of the bracket 11 and is connected to the guide rail plate 1.
The discharge port 14a of the nozzle 14 attached to the upper part of the chain case 9 is opened toward the top of the gutter 13, and the hose 15 connects the nozzle 14 and an oil pump equipped with an electric motor. There is.

In the above-mentioned device, the grain culm cut by the cutting blade 2 is raked rearward by the raking wheels 3, and this is carried over by the stock conveyor chain and the ear side conveyor 6, but the grain from the raking path 4 is The culm is once fed horizontally and is passed through the raking passage 5.
The grain culms from the husks join together at the side, and then the stems are transported as they are by the ear-side conveyor 6, but the handling depth of the stalk part is adjusted by the handling depth adjustment body, and then the stalks are transferred to the feed chain of the threshing device. and the rail.

When the lubrication pump is driven, lubricating oil is injected into each rotating part through the hose, but in the ear-side conveyor 6, the lubricating oil discharged from the nozzle 14 flows into the gutter 13 as shown in FIG. It flows above and falls onto the guide rail plate 12, where it spreads laterally on the plate surface and slowly flows down to lubricate the rollers 8a of the conveyance chain 8.

As described above, the present invention is to install a grain culm conveyance chain in such a way that its link pins are in a substantially vertical direction, and at the same time, the grain culm conveyance chain is lowered at a gentle slope toward the inner surface of the roller of the grain culm conveyance chain. A series of inclined guide rail plates are brought into sliding contact with each other, and a lubrication nozzle is placed on a gutter which is connected to the upper surface of the guide rail plate and is gently sloped downward, with its discharge port facing the gutter. The lubricating oil discharged from the gutter falls onto the top of the gutter and does not scatter to the outside.

This lubricating oil slowly flows down on the gently sloped surface of the gutter and spreads widely until it reaches the guide rail plate. At this point, the lubricating oil is further dispersed in the length direction of the chain on the upper surface of the guide rail plate, and then is applied to the inner surface of the chain roller. Eventually, the lubricating oil discharged from the nozzle is distributed to areas other than the conveying chain. It is possible to effectively lubricate substantially the entire amount of oil to the conveying chain without causing it to scatter toward the members of the conveyor chain, and furthermore, the guide rail allows the oil to be dispersed in the length direction of the conveyor chain so that each long part of the conveyor chain can be lubricated little by little. While preventing oil droplets from falling from the conveyor chain as in conventional systems, the conveyor chain and guide rail plate are effectively lubricated between each part of the conveyor chain and between the chain rollers and the guide surface of the guide rail plate. It is possible to prevent wear and reduce the resistance between the two.

In addition, even if the viscosity of the lubricating oil changes due to temperature changes, it only slows down the speed at which it flows down the gutter and the time it takes to reach the chain while being dispersed along the length of the guide rail plate. When the viscosity is high, such as in the injection method, the lubricating oil may not reach the conveying chain, or when the viscosity is low,
It is possible to reliably lubricate the grain culm conveying chain in its entirety without causing too much oil to be wasted due to scattering.
In addition, the lubricating oil is less likely to scatter and stain the frame, chain case, cover, etc.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
Fig. 1 is a plan view of the preprocessing device, Fig. 2 is a plan view of the main parts, Fig. 3 is a sectional view taken along line A-A in Fig. 2, and Fig. 4 is a sectional view taken along line B-B in Fig. 3. FIG. 5 is a sectional view of a conventional example. 2... Cutting blade, 6... Ear side conveyor, 8... Conveyance chain, 8a... Roller, 12... Guide rail plate, 13... Gutter, 14... Nozzle.

Claims (1)

[Scope of utility model registration request] The grain culm conveyance chain is stretched so that its link pins are substantially vertically oriented, and a series of guide rail plates are provided on the inner side of the rollers of the grain culm conveyance chain and are gently inclined downwardly toward the chain. A lubricating oil supply device characterized in that a lubricating oil nozzle is placed on a gutter which is in sliding contact with the upper surface of the guide rail plate and is gently sloped downward so that its discharge port faces toward the gutter.