JPH10103588A - Lubricator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To operate a lubricating pump so as to improve lubricating workability by providing a spring for energizing the lubricating pump to operate in the discharging direction. SOLUTION: After a lubricating pump 10 is suction operated by a manual operation lever 8, the operation for the manual operation lever 8 is released and lubricating oil is supplied from a lubricating nozzle 12 to a raising chain 4A and a holding carrying chain 7B by discharge-operating the lubricating pump 10 with the energizing force of a spring 13. In this structure, by adjusting the energizing force of the spring 13, the discharging speed of the lubricating pump 10 is adjusted and the amount of oil per unit time supplied to the raising chain 4A and the holding carrying chain 7B is adjusted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a variety of working machines, such as a grain stalk raising chain in a combine, a transport chain for cutting and collecting culms, a supply chain for feeding and feeding a harvested grain to a threshing unit, and a threshing feed chain. The present invention relates to a lubricating device for a chain, and more particularly, to a device provided with a manually operated lubricating pump for supplying lubricating oil to the chain.

[0002]

2. Description of the Related Art For example, as a conventional lubricating device for a grain raising chain in a combine, a lubricating oil is supplied from a lubricating pump to a chain only while the lubricating pump is operated by manual operation such as manual operation or foot operation. Is configured to supply the following.

[0003]

However, according to the above-mentioned conventional technique, in order to uniformly supply an appropriate amount of lubricating oil to the entire chain, the lubricating pump is operated slowly so that the oil is supplied little by little without interruption. It required time and effort to lubricate.

An object of the present invention is to improve lubrication workability by operating a lubrication pump.

[0005]

The features, functions and effects of the first aspect of the present invention are as follows.

[Features] A lubricating apparatus provided with a manually operated lubricating pump for supplying lubricating oil to a chain, wherein a spring for urging the lubricating pump in a discharge direction is provided. .

According to the first aspect of the present invention, the lubrication pump is operated in the discharge direction by the urging force of the spring by releasing the operation of the lubrication pump after the suction operation of the lubrication pump. Therefore, by appropriately determining the biasing force of the spring according to various conditions such as the capacity of the lubricating pump and the required discharge amount per unit time, an artificial discharge operation is required after the suction operation. Lubricating oil can be supplied to the chain without interruption for a set amount over a set time.

[Effects] Therefore, according to the first aspect of the present invention, while the lubrication of the chain can be favorably performed, the operation is only an instantaneous operation of sucking and operating the lubrication pump, and the workability of lubrication can be improved. It became so.

According to the second aspect of the present invention, the features, operations and
The effects are as follows.

[Features] A lubricating apparatus provided with a manually operated lubricating pump for supplying lubricating oil to a chain, wherein the lubricating pump discharges a lubricating passage from the lubricating pump to a lubricating nozzle for the chain. The point is that a pressure accumulator for temporarily accumulating the discharge pressure during operation is provided.

According to the second aspect of the present invention, when the lubrication pump is discharged, the discharge pressure is temporarily accumulated in the pressure accumulator along with the discharge operation of the lubrication pump, and the discharge operation to the lubrication pump is released. After that, the lubricating oil is supplied to the lubrication nozzle by the pressure accumulated by the pressure accumulator, so that the capacity of the pressure accumulation by the pressure accumulator is adjusted according to various conditions such as the capacity of the oil pump and the required discharge amount per unit time. By appropriately determining, the lubricating oil can be supplied to the chain without interruption by the set amount over the set time.

[Effects] Therefore, according to the second aspect of the present invention, although the chain can be lubricated satisfactorily, the operation is only an instantaneous operation of discharging the lubrication pump, and the workability of lubrication can be improved. It became so.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION

[First Embodiment] An example in which a combine harvester is applied to a lubricating device for a reaping portion will be described. As shown in FIG. 1, the mowing part is connected to the front part of a self-propelled body 2 provided with a crawler traveling device 1 so as to be able to move up and down freely, and a weeding implement 3 for weeding planted grain culms; The self-propelled vehicle 2 was equipped with the raising device 4 for causing the planted culms to be weeded, the clipper-type cutting blade 5 for cutting the root of the culms which were caused, and the cut culms. And a supply device 7 that supplies the feed chain 6A of the threshing device 6 to the transport start end.

The raising device 4 rotates the raising chain 4A provided with the raising and lowering pawls 4a so that the raising pawls 4a can be raised and engaged with the grain culm when the raising path moves. Causes planted grain stems.

The cutting blade 5 includes a fixed cutting blade 5A and a movable cutting blade 5B slidably disposed on the upper surface thereof.
The stock is cut off by sliding the two.

The supply device 7 has a holding and conveying chain 7B for holding and transporting the root portion of the stalks to the starting end of the feed chain 6A in cooperation with the holding rail 7A.

As shown in FIG. 2, the lubricating device uses the pulling chain 4A and the nipping / conveying chain 7B as a chain C to be lubricated, and swings the manual operation lever 8 to one side. A plunger-type artificially operated lubrication pump 10 is provided which suctions the lubricating oil in the tank 9 by operation and discharges the lubricating oil therein by swinging the manual operation lever 8 to the opposite side. An lubrication oil nozzle 12 is provided to raise the lubricating oil sent from the oil supply pipe 10 through an oil supply pipe 11 which is an example of a supply path, and to separately supply the lubricating oil to each of the chain 4A and the nipping / conveying chain 7B.
A spring 13 that acts on the manual operation lever 8 to urge the lubrication pump 10 in the discharge direction is provided between the manual operation lever 8 and a spring receiver F provided on the raising device 4 as a fixed portion. Have been. The manual operation lever 8, the tank 9, and the lubrication pump 10 are attached to the raising device 4.

That is, after the lubrication pump 10 is sucked and operated by operating the manual operation lever 8, the operation on the manual operation lever 8 is released, so that the lubrication pump 10 is discharged by the urging force of the spring 13. The lubricating oil is raised from the lubricating nozzle 12 and supplied to the chain 4A and the nipping / conveying chain 7B. By adjusting the urging force of the spring 13, the lubricating pump 10
By adjusting the discharge operation speed, the amount of lubrication per unit time to the pull-up chain 4A and the nipping / conveying chain 7B can be adjusted.

In the lubricating device, as shown in FIG.
The oil supply pipe 15 for the cutting blade to a pair of lubrication nozzles 14 for the cutting blade that injects and supplies the lubricating oil to the cutting blade 5 is the oil supply pipe 11.
Is connected through a switching valve 16 so that the cutting blade 5 can be lubricated. More specifically, by switching the switching valve 16 to the cutting blade lubrication nozzle 14 side and swinging the manual operation lever 8, suction of lubricating oil from the tank 9 into the lubrication pump 10 and lubrication pump 10
The lubricating oil is fed under pressure to the cutting blade lubrication nozzle 14 by artificial force, and the cutting blade 5 is lubricated. In addition, the discharge operation of the lubrication pump 10 by operating the manual operation lever 8 is performed by vigorously operating the manual operation lever 8 so that the discharge pressure is higher than that at the time of the discharge operation by the spring 13 to lubricate the cutting blade. Thus, the lubricating oil can be blasted and supplied from the nozzle 14.

[Second Embodiment] In the first embodiment, as shown in FIG. 3, a spring receiver F is provided on a swing operation lever 17, and the position of the spring receiver F is changed by the swing of the swing operation lever 17. Is changed so that the biasing force of the spring 13 can be adjusted. The maintenance of the oscillating posture of the oscillating operation lever 17 against the urging force of the spring 13 is performed by a frictional force at a pivot supporting the oscillating operation lever 17 so as to be able to oscillate.

[Third Embodiment] In the first embodiment, instead of providing the spring 13, the oil supply passage 11
A pressure accumulator 18 that temporarily accumulates the discharge pressure of the lubrication pump 10 in accordance with the discharge operation of the lubrication pump 10, and supplies lubricating oil from the lubrication nozzle 12 with the discharge pressure accumulated in the pressure accumulator 18. It is.

As shown in FIG. 4, the pressure accumulator 18 is formed of an elastic film 19 such as a rubber surface facing the surface of the lubrication nozzle 12 on which the supply hole 12a is formed. When the lubricating oil is supplied, the elastic film 19 is deformed against its elasticity, thereby increasing the volume of the lubrication nozzle 12, thereby accumulating the discharge pressure. The lubricating oil in the lubricating nozzle 12 is supplied from the nozzle hole 12a with the action of returning to the original state by the elasticity, that is, by accumulating the pressure.

As shown in FIG. 5, as the pressure accumulator 18, a part of the piping components constituting the oil supply passage 11 is formed from an elastic tube 20 such as rubber which expands against its elasticity as the internal pressure increases. It may be constituted by forming. In other words, the elastic pipe 20 expands against the elasticity by the discharge pressure from the oil pump 10 to accumulate and accumulates pressure, and when the supply from the oil pump 10 is stopped, the elastic pipe 20 contracts due to its elasticity. Is supplied to the lubrication nozzle 12.

[Alternative Embodiment] In the above-described embodiment, the raising chain 4A and the holding / conveying chain 7B in the combine are used as the chains C to be lubricated. However, the lubricating device of the present invention is not limited to the conveying chain and the transmission chain. Various chains of working machines, such as a chain of the above, can be implemented as the chain C to be lubricated.

[Brief description of the drawings]

FIG. 1 is a side view of a main part of a combine showing a first embodiment.

FIG. 2 is a piping configuration diagram of a lubrication device showing a first embodiment.

FIG. 3 is a piping configuration diagram of a lubrication device showing a second embodiment.

FIG. 4 is a longitudinal sectional view of a pressure accumulator provided in a nozzle according to a third embodiment.

FIG. 5 is a partially cutaway view of a pressure accumulator provided in the middle of a pipe according to a third embodiment.

[Explanation of symbols]

 C chain 10 Oil pump 11 Oil supply path 12 Oil nozzle 13 Spring 18 Pressure accumulator

Claims (2)

[Claims] 1. A lubricating apparatus provided with a manually operated lubricating pump for supplying lubricating oil to a chain, the lubricating apparatus including a spring for urging the lubricating pump to operate in a discharge direction. 2. A lubricating apparatus provided with a manually operated lubricating pump for supplying lubricating oil to a chain, wherein a discharge operation of the lubricating pump is performed in a lubricating path from the lubricating pump to a lubricating nozzle for the chain. A lubricating device provided with a pressure accumulator for temporarily accumulating the discharge pressure.