Large and small gear friction pair lubricating system of rod mill

Abstract

The utility model discloses a large and small gear friction pair lubricating system of a rod mill, which comprises an oil tank and the rod mill, the rod mill comprises a large gear and a small gear, the large gear is meshed with the small gear, oil return grooves are arranged at the bottoms of the large gear and the small gear, a delivery pump is fixed on the outer wall of one side of the oil tank, and an oil injection component is fixed on one side of the large gear. An oil discharging pipe is connected between an outlet of the conveying pump and the oil spraying assembly, an oil suction opening is formed in the outer wall of one side of the oil tank, an oil suction pipe is connected between the oil suction opening and an inlet of the conveying pump, an oil return opening is fixed to the outer wall of one side of the oil tank, and an oil return pipe is connected between the oil return opening and the oil return groove. Recycled oil-water mixtures are layered through the oil tank, lubricating oil on the upper layer is conveyed into the oil spraying assembly through the conveying pump to be sprayed out, water in the lubricating oil is removed, and therefore the effect is better when a large gear and a small gear of the rod mill are lubricated.

Description

Technical Field

[0001] The utility model relates to the technical field of rod mills, in particular to a lubrication system for a friction pair of large and small gears of a rod mill. Background Art

[0002] A rod mill is a mill in which the grinding body loaded in the cylinder is a steel rod. Rod mills are generally wet overflow type and can be used as primary open circuit grinding. They are widely used in primary grinding in artificial stone sand, ore dressing plants, chemical plants and power departments. When the rod mill is in operation, the pinion drives the large gear and the rod mill cylinder to rotate, and the pinion is partially immersed in the lubricating oil in the oil pool. However, when the rod mill is working, dust is reduced by spraying, resulting in the lubricating oil in the oil pool containing a large amount of water, thereby reducing the lubrication effect of the friction pair of the large and small gears of the rod mill. Therefore, it is urgent to design a lubrication system for the friction pair of the large and small gears of the rod mill to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a lubrication system for the friction pair of large and small gears of a rod mill, so as to solve the above-mentioned shortcomings in the prior art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A lubrication system for a large and small gear friction pair of a rod mill comprises an oil tank and a rod mill, wherein the rod mill comprises a large gear and a small gear, the large gear and the small gear are meshed, and an oil return groove is provided at the bottom of the large gear and the small gear, a delivery pump is fixed to an outer wall on one side of the oil tank, an oil injection assembly is fixed to one side of the large gear, an oil drain pipe is connected between the outlet of the delivery pump and the oil injection assembly, an oil suction port is provided on an outer wall on one side of the oil tank, an oil suction pipe is connected between the oil suction port and the inlet of the delivery pump, an oil return port is fixed to an outer wall on one side of the oil tank, and an oil return pipe is connected between the oil return port and the oil return groove.

[0006] Furthermore, a side of the oil suction port away from the oil suction pipe is connected to a one-way valve through a pipeline, a bottom of the one-way valve is connected to a filter screen, and the filter screen and the one-way valve are both located inside the oil tank.

[0007] Furthermore, a filter plate is fixed inside the oil tank, the filter plate is located at the bottom of the filter screen, and an air filter is fixed on the top outer wall of the oil tank.

[0008] Furthermore, a sewage outlet is fixed on an outer wall of one side of the bottom of the oil tank, and one end of the sewage outlet is connected to a sewage valve.

[0009] Furthermore, an observation window 1 and an observation window 2 are fixed to an outer wall of one side of the oil tank, respectively. The observation window 1 is located at the bottom of the filter plate, and the observation window 2 is located at the top of the filter plate.

[0010] Furthermore, the oil injection assembly comprises an arc plate, and evenly distributed nozzles are fixed on the outer wall of one side of the arc plate close to the large gear.

[0011] In the above technical scheme, the utility model provides a lubrication system for the large and small gear friction pairs of a rod mill, and the beneficial effects are as follows: (1) through the provision of an oil tank, a delivery pump and an oil spray assembly, the recovered oil-water mixture is stratified by using the oil tank, and the upper layer of lubricating oil is delivered to the oil spray assembly by the delivery pump for spraying, so that the water in the lubricating oil is removed, thereby making the large and small gears of the rod mill more effective during lubrication; (2) through the provision of an arc plate and a nozzle, the lubricating oil is delivered to the inside of the arc-shaped arc plate, and the lubricating oil is sprayed toward the large gear through a plurality of nozzles, so that the large and small gear friction pairs of the rod mill are more uniform during oil spraying; (3) through the provision of a filter plate and a filter net, the filter plate and the filter net can be used to filter impurities in the lubricating oil to prevent the impurities from clogging the nozzle, thereby making the large and small gear friction pairs of the rod mill more reliable during oil spraying lubrication through the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0013] Figure 1 The utility model provides an overall structural schematic diagram of a lubrication system for a friction pair of large and small gears of a rod mill.

[0014] Figure 2 A schematic diagram of the internal structure of an oil tank provided in an embodiment of a lubrication system for friction pairs of large and small gears of a rod mill according to the utility model.

[0015] Figure 3 The utility model is a schematic diagram of the structure of an oil injection assembly provided in an embodiment of a lubrication system for large and small gear friction pairs of a rod mill.

[0016] Description of reference numerals:

[0017] 1 oil tank, 2 observation window 1, 3 drain valve, 4 air filter, 5 observation window 2, 6 delivery pump, 7 oil suction pipe, 8 oil drain pipe, 9 large gear, 10 fuel injection assembly, 11 small gear, 12 oil return tank, 13 oil return pipe, 14 arc plate, 15 nozzle, 16 oil suction port, 17 one-way valve, 18 filter screen, 19 filter plate, 20 drain port, 21 oil return port. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] like Figure 1-3 As shown, a lubrication system for a large and small gear friction pair of a rod mill provided by an embodiment of the utility model comprises an oil tank 1 and a rod mill, the rod mill comprises a large gear 9 and a small gear 11, the large gear 9 and the small gear 11 are meshed, an oil return groove 12 is arranged at the bottom of the large gear 9 and the small gear 11, a delivery pump 6 is fixed to an outer wall on one side of the oil tank 1, an oil injection assembly 10 is fixed to one side of the large gear 9, an oil drain pipe 8 is connected between the outlet of the delivery pump 6 and the oil injection assembly 10, an oil suction port 16 is arranged on an outer wall on one side of the oil tank 1, an oil suction pipe 7 is connected between the oil suction port 16 and the inlet of the delivery pump 6, an oil return port 21 is fixed to an outer wall on one side of the oil tank 1, and an oil return pipe 13 is connected between the oil return port 21 and the oil return groove 12.

[0020] Specifically, in this embodiment, an oil tank 1 and a rod mill are included. The oil tank 1 has lubricating oil inside. The rod mill includes a large gear 9 and a small gear 11. The large gear 9 and the small gear 11 are meshed. The cylinder of the rod mill is fixed to the large gear 9. The motor output shaft of the rod mill is fixed to the small gear 11, so that the small gear 11 drives the large gear 9 and the cylinder of the rod mill to rotate, thereby forming a friction pair with the small gear 11 and the large gear 9. The bottom of the large gear 9 and the small gear 11 is provided with an oil return groove 12. The oil return groove 12 is used to recover excess lubricating oil on the small gear 11 and the large gear 9. A delivery pump 6 is fixed to the outer wall of one side of the oil tank 1. The large gear 9 An oil injection assembly 10 is fixed on one side of the oil tank 1, an oil drain pipe 8 is connected between the outlet of the delivery pump 6 and the oil injection assembly 10, the delivery pump 6 delivers the lubricating oil to the inside of the oil injection assembly 10, an oil suction port 16 is provided on the outer wall of one side of the oil tank 1, an oil suction pipe 7 is connected between the oil suction port 16 and the inlet of the delivery pump 6, the delivery pump 6 draws the lubricating oil inside the oil tank 1 through the oil suction pipe 7, an oil return port 21 is fixed on the outer wall of one side of the oil tank 1, an oil return pipe 13 is connected between the oil return port 21 and the oil return groove 12, the lubricating oil recovered in the oil return groove 12 flows back to the inside of the oil tank 1, and in actual application, the height of the oil return groove 12 is higher than the height of the oil tank 1.

[0021] The utility model provides a lubrication system for the friction pair of large and small gears of a rod mill. The oil tank 1, the delivery pump 6 and the oil spray assembly 10 are arranged. The oil tank 1 is used to stratify the recovered oil-water mixture, and the upper layer of lubricating oil is delivered to the oil spray assembly 10 through the delivery pump 6 for spraying, so that the water in the lubricating oil is removed, thereby making the large and small gears 11 of the rod mill more effective in lubrication, and preventing water from corroding the small gear 11 and the large gear 9.

[0022] In another embodiment provided by the utility model, a one-way valve 17 is connected to the side of the oil suction port 16 away from the oil suction pipe 7 through a pipeline, and the lubricating oil inside the oil tank 1 can only enter the interior of the delivery pump 6 in one direction through the one-way valve, and a filter screen 18 is connected to the bottom of the one-way valve 17, and the filter screen 18 and the one-way valve 17 are both located inside the oil tank 1, and the filter screen 18 is used to filter impurities in the lubricating oil; a filter plate 19 is fixed inside the oil tank 1, and the filter plate 19 is located at the bottom of the filter screen 18. The filter plate 19 and the filter screen 18 can filter impurities in the lubricating oil to prevent impurities from clogging the nozzle, thereby making the friction pair of the large and small gears 11 of the rod mill more reliable when lubricated by oil spraying through the nozzle, and an air filter 4 is fixed to the top outer wall of the oil tank 1, and the air filter 4 plays a role in filtering the air entering the oil tank 1.

[0023] In another embodiment provided by the utility model, a drain port 20 is fixed to the outer wall of one side of the bottom of the oil tank 1, and one end of the drain port 20 is connected to a drain valve 3. When the drain valve 3 is opened, the water inside the oil tank 1 can be discharged; an observation window 1 2 and an observation window 2 5 are respectively fixed to the outer wall of one side of the oil tank 1, and the observation window 1 2 is located at the bottom of the filter plate 19, and the observation window 2 5 is located at the top of the filter plate 19. The oil-water boundary inside the oil tank 1 can be conveniently observed through the observation window 1 2, and the oil level can be penetrated through the observation window 2 5, so that the staff can discharge the water from the drain valve 3 in time and replenish the lubricating oil into the interior of the oil tank 1.

[0024] In another embodiment provided by the utility model, the oil injection assembly 10 includes an arc plate 14, the interior of the arc plate 14 is hollow, and evenly distributed nozzles 15 are fixed to the outer wall of the arc plate 14 on one side close to the large gear 9. The nozzles 15 are facing the side of the large gear 9 to transport the lubricating oil to the interior of the arc-shaped arc plate 14, and the lubricating oil is sprayed toward the large gear 9 through multiple nozzles 15, so that the friction pair of the large and small gears 11 of the rod mill is more uniform when spraying oil.

[0025] Working principle: When in use, inject a proper amount of lubricating oil into the oil tank 1, and deliver the lubricating oil to the inside of the arc plate 14 through the delivery pump 6, and spray the lubricating oil to the large gear 9 through the nozzle 15 on the arc plate 14. When the rod mill is working, the rotation of the small gear 11 will drive the large gear 9 to rotate, so that the large gear 9 and the small gear 11 are evenly covered with lubricating oil, so that the wear of the large gear 9 and the small gear 11 caused by friction is reduced, and the excess lubricating oil on the large gear 9 and the small gear 11 flows back to the inside of the return oil tank 12 by gravity. At the same time, the water mist used for dust reduction when the rod mill is working will be mixed with the lubricating oil and enter the return oil tank 12 together. The oil-water mixture in the return oil tank 12 flows back to the inside of the oil tank 1 by gravity. Since the density of oil is less than that of water, the oil-water mixture in the oil tank 1 gradually stratifies. The water is located at the bottom of the lubricating oil, so that the delivery pump 6 will not pump out the water, and the nozzle 15 sprays the lubricating oil to the large gear 9 and the small gear 11; the filter plate 19 inside the oil tank 1 can filter the impurities inside the lubricating oil, and the filter screen 18 can also filter the impurities inside the lubricating oil again to prevent the impurities from clogging the nozzle 15; the oil and water have an obvious dividing line after being stratified inside the oil tank 1. The position of the oil-water boundary is observed through the observation window 1 2. When the position of the oil-water boundary is close to the top of the observation window 1 2, the drain valve 3 is opened to discharge the water and impurities together. At the same time, the observation window 2 5 is used to check whether the lubricating oil level is close to the lowest part of the observation window 2 5. When the oil level is close to the lowest part of the observation window 2 5, it indicates that the oil level is too low. At this time, the lubricating oil can be added to the inside of the oil tank 1.

[0026] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lubrication system for the friction pair of large and small gears of a rod mill, characterized in that: The invention comprises an oil tank (1) and a rod mill, wherein the rod mill comprises a large gear (9) and a small gear (11), wherein the large gear (9) and the small gear (11) are meshed, and an oil return groove (12) is arranged at the bottom of the large gear (9) and the small gear (11); a delivery pump (6) is fixed to one side of the outer wall of the oil tank (1); an oil injection assembly (10) is fixed to one side of the large gear (9); an oil discharge pipe (8) is connected between the outlet of the delivery pump (6) and the oil injection assembly (10); an oil suction port (16) is arranged on one side of the outer wall of the oil tank (1); an oil suction pipe (7) is connected between the oil suction port (16) and the inlet of the delivery pump (6); an oil return port (21) is fixed to one side of the outer wall of the oil tank (1), and an oil return pipe (13) is connected between the oil return port (21) and the oil return groove (12).

2. The lubrication system for the friction pair of large and small gears of a rod mill according to claim 1, characterized in that: A one-way valve (17) is connected to the side of the oil suction port (16) away from the oil suction pipe (7) through a pipeline, and a filter screen (18) is connected to the bottom of the one-way valve (17). The filter screen (18) and the one-way valve (17) are both located inside the oil tank (1).

3. The lubrication system for the friction pair of large and small gears of a rod mill according to claim 2, characterized in that: A filter plate (19) is fixed inside the oil tank (1), and the filter plate (19) is located at the bottom of the filter screen (18). An air filter (4) is fixed on the top outer wall of the oil tank (1).

4. The lubrication system for the friction pair of large and small gears of a rod mill according to claim 1, characterized in that: A sewage outlet (20) is fixed to an outer wall on one side of the bottom of the oil tank (1), and one end of the sewage outlet (20) is connected to a sewage valve (3).

5. The lubrication system for the friction pair of large and small gears of a rod mill according to claim 3, characterized in that: An observation window 1 (2) and an observation window 2 (5) are fixed to one side outer wall of the oil tank (1), wherein the observation window 1 (2) is located at the bottom of the filter plate (19), and the observation window 2 (5) is located at the top of the filter plate (19).

6. The lubrication system for the friction pair of large and small gears of a rod mill according to claim 1, characterized in that: The oil injection assembly (10) comprises an arc plate (14), and uniformly distributed nozzles (15) are fixed on the outer wall of one side of the arc plate (14) close to the large gear (9).

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