SU1523120A1 - Arrangement for lubricating sawing tool - Google Patents

Abstract

This invention relates to devices for lubricating a sawing organ and may be used in forest machines. The goal is to increase reliability and reduce size. The device contains a sawing body 1, a toothed rack 9 with a through bore 10 and a hollow plunger 11 housed therein, rigidly connected to the housing 8, and a check valve 12 is installed on the side of the working cavity 6 in the bore 10 through the pipe 14 connected to lubrication zone saw body. When the rail 9 moves to the right, the pressure in the bore 10 increases, exceeding the pressure in the working cavity 6. The exhaust valve 13 opens and passes the lubricant to the saw member 1. 2 Il.

Description

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This invention relates to devices for lubricating a sawing organ and may be used in forest machines.

The goal is to increase reliability and reduce size.

FIG. 1 shows a device, side view; in fig. 2 shows section A-A in FIG. one.

The device contains a sawing member 1, a hollow shaft gear 2, a drive shaft 3 coaxially mounted therein with stars, and the spring action of the check valve 12 is closed. This position of the device is the starting point for drying, indicating the supply of lubricant to the moving parts of the saw body 1.

At the moment of supplying fluid to the working cavity 6 of the piston hydraulic engine 5, pressure in it and in the internal bore 10 of the rail 9 is equalized through the check valve 12, then under the action of U.-1P,

daughter 4, a porsche hydraulic motor 5 with overpressure of the spring

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Barrels 6 and non-working 7 cavities, inside of which case 8 there is a gear rail 9 with a through internal bore 10 and a hollow plunger 11 housed in it, rigidly connected to the housing 8 of the piston hydraulic engine 5.

The bore 10 is connected to the working cavity 6 of the piston hydraulic engine 5 through a check valve 12 located inside the rail 9, and through the lubrication zone of the saw body 1. an exhaust valve 13 located in the housing 8 of the piston hydraulic engine 5 and adjusted to a pressure greater than the pressure in the working cavity 6 of the hydraulic engine 5 when sawing and the pipeline 14.

It is also possible to install another outlet valve 13, for example, at the end of the pipeline 14 in the zone of lubricant supply to the sawing organ or directly in it.

More reliably and efficiently from the point of view of the security of the device, as well as saving lubricant, connect the pipeline 14 to the lubricant supply area through a shut-off valve 15 installed in the lower part of the drive shaft and connected by a channel 16 made inside the drive shaft to the internal cavity 17 of the gear shaft 2 and further with the pipeline 14. In the drive shaft 3 and the sprocket 4 are made of radial holes.

The shut-off valve 15 prevents the lubricant from flowing out under its own weight from the conduit 14 and the internal cavity 17 of the gear shaft 2.

In the initial position, the rail 9 finds30

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closes. At the same time, the exhaust valve 13 does not open, as it is adjusted to a pressure exceeding the pressure in the working cavity 6 of the piston hydraulic engine 5. When the rail 9 moves to the right, due to the reduction of the trapped volume of fluid in the internal bore 10, the pressure in it increases, thus providing a more complete closing the check valve 12.

When the opening pressure of the exhaust valve 13 is reached in the bore 10, the latter opens, passing lubricating fluid through the pipe 14 to the lubrication zone. Since the cavity 17 is constantly filled with fluid, the excess of it, which is fed under pressure from the pipeline 14, is displaced through the channel 16 through the opening shut-off valve 15 into the radial channels 18 of the drive shaft 3 and the sprocket 4, ensuring the flow of lubricant to the moving elements of the saw body 1 in the lubrication zone.

When using the device, the reliability and efficiency of the sawing organ is improved, the dimensions are reduced, the metal consumption is reduced, and the lubricant is also economically consumed.

Claims (1)

Invention Formula A device for lubricating the sawing organ, comprising a shaft-shaft, a housing inside which a gear rack of a piston hydraulic motor is housed with a working and non-working pressure cavity, and a longitudinal bore for a hollow plunger rigidly connected with the right (Fig. 2), the inverse 12 and the outlet with the housing from the non-working cavity Noah 13 valves are closed, the hollow plunger 11 is maximally buried inside the toothed rack 9, as a result of which the volume of the internal bore 10 in it is minimal and filled with hydraulic fluid and coo6uj, eHHoro through a through-passage through a pipeline having an exhaust valve, with a lubricating zone of the sawing organ, and a check valve for a lubricant, characterized in that, in order to increase the fluid to the non-working cavity 7 50, reliability and size reduction. piston hydraulic motor 5, the rail 9 moves to the left. Having reached the extreme position, the movement of the rail 9 stops, the increase in volume and the flow of hydraulic fluid into the internal bore of the rail 9 does not occur through, and the check valve is located in the bore in the working cavity zone, while the exhaust valve is adjustable to pressure higher than the pressure in the working cavity . dit, the spring-loaded check valve 12 closes. This position of the device is the starting point for drying, indicating the supply of lubricant to the moving parts of the saw body 1. At the moment of supplying fluid to the working cavity 6 of the piston hydraulic engine 5, the pressure in it and in the internal bore 10 of the rail 9 is equalized through the check valve 12, then under due to overpressure of the spring it closes. At the same time, the exhaust valve 13 does not open, as it is adjusted to a pressure exceeding the pressure in the working cavity 6 of the piston hydraulic engine 5. When the rail 9 moves to the right, due to the reduction of the trapped volume of fluid in the internal bore 10, the pressure in it increases, thus providing a more complete closing the check valve 12. When the opening pressure of the exhaust valve 13 is reached in the bore 10, the latter opens, passing lubricating fluid through the pipe 14 to the lubrication zone. Since the cavity 17 is constantly filled with fluid, the excess of it, which is fed under pressure from the pipeline 14, is displaced through the channel 16 through the opening shut-off valve 15 into the radial channels 18 of the drive shaft 3 and the sprocket 4, ensuring the flow of lubricant to the moving elements of the saw body 1 in the lubrication zone. When using the device, the reliability and efficiency of the sawing organ is improved, the dimensions are reduced, the metal consumption is reduced, and the lubricant is also economically consumed. Invention Formula A device for lubricating the sawing organ, comprising a shaft-shaft, a housing inside which a gear rack of a piston hydraulic motor is housed with a working and non-working pressure cavity, and a longitudinal bore for a hollow plunger rigidly connected with the housing from the non-working cavity with the housing from the non-working cavity and coo6uj, eHHoro through a through-passage through a pipeline having an exhaust valve, with a lubricating zone of the sawing member, and a check valve for a lubricant, characterized in that, in order to increase reliability and reduce overall dimensions. The bore is made through, and the check valve is placed in the bore in the area of the working cavity, while the exhaust valve is made adjustable to a pressure higher than the pressure in the working cavity.