A thin oil lubricated bearing assembly

Abstract

The utility model provides a thin oil lubricated bearing assembly, which belongs to the field of bearing lubrication technology, including a housing, a transmission shaft and a bearing body. The housing has an assembly chamber inside, and two bearing bodies are respectively arranged at the two ends of the assembly chamber. The transmission shaft runs through the housing, and the two bearing bodies are respectively sleeved on both sides of the transmission shaft and rotate with the transmission shaft. An oil storage tank is arranged at the bottom of the assembly chamber, and lubricating thin oil is stored in the oil storage tank. An oil inlet hole and an exhaust hole are provided at the top of the housing, and an oil dipstick is longitudinally provided in the oil inlet hole, and the lower end of the oil dipstick extends into the oil storage tank. An oil drain hole is provided at the bottom of the housing. The thin oil lubricated bearing assembly provided by the utility model enables the bearing assembly of the slurry pump to fully lubricate the bearing bodies on both sides of the transmission shaft with thin oil under different working conditions, thereby avoiding overheating of the bearing and ensuring the service life of the bearing.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing lubrication, and more specifically relates to a thin oil lubricated bearing assembly. Background Art

[0002] General bearing assemblies are grease lubricated to produce reliable operating efficiency with minimum maintenance requirements.

[0003] Slurry pump is a kind of pump used to transport a mixture of solid particles and liquids. It is widely used in mining, power plants, dredging, metallurgy, chemical industry, building materials and petroleum industries. Since slurry pumps are widely used in various industries, their working environment often has low temperature, wide temperature range or high-speed operation. At this time, the bearing components of slurry pumps that are lubricated by grease often overheat, which seriously affects the service life of the bearings. Utility Model Content

[0004] The utility model aims to provide a thin oil lubricated bearing assembly, aiming to solve the problem that the bearing assembly of a lubricated slurry pump using grease lubrication often overheats, seriously affecting the service life of the bearing.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a thin oil lubricated bearing assembly, including a shell, a transmission shaft and a bearing body, the interior of the shell is provided with an assembly chamber, the two bearing bodies are respectively arranged at the two ends of the assembly chamber, the transmission shaft passes through the shell, the two bearing bodies are respectively sleeved on both sides of the transmission shaft and rotatably cooperate with the transmission shaft, an oil storage tank is provided at the bottom of the assembly chamber, the oil storage tank stores lubricating thin oil that immerses the lower area of ​​the two bearing bodies, the top of the shell is provided with an oil inlet hole and an exhaust hole, an oil dipstick is longitudinally provided in the oil inlet hole, the lower end of the oil dipstick extends into the oil storage tank, and an oil drain hole is provided at the bottom of the shell.

[0006] In a possible implementation, the exhaust hole and the oil inlet hole are respectively arranged on left and right sides of a central longitudinal section of the shell.

[0007] In a possible implementation, a first mounting platform is disposed on the upper portion of the housing, and the exhaust hole and the oil inlet hole are respectively opened on left and right sides of the first mounting platform.

[0008] In a possible implementation, one side of the upper end surface of the first mounting platform is provided with a first inclined surface, the height of the first inclined surface gradually decreases from the inside to the outside, and the oil inlet hole is opened perpendicular to the first inclined surface.

[0009] In a possible implementation, an upper port of the exhaust hole is provided with a breather.

[0010] In a possible implementation, an oil inlet sealing plug is installed at the upper end of the oil inlet hole, and the oil dipstick passes through the oil inlet sealing plug and extends into the oil storage tank.

[0011] In a possible implementation, the oil drain hole is located below the same side of the air exhaust hole.

[0012] In a possible implementation, a second mounting platform is provided at the lower portion of the shell, a lower end surface of the second mounting platform has a second inclined surface on one side, the height of the second inclined surface gradually increases from inside to outside, and the oil drain hole is opened perpendicular to the second inclined surface.

[0013] In a possible implementation, an oil drain sealing plug is provided on the lower end surface of the oil drain hole.

[0014] In a possible implementation, the bottom surface of the oil storage tank increases in height from the middle to both sides in the front-to-back direction; and decreases in height from away from the oil drain hole to close to the oil drain hole in the left-to-right direction of the bottom surface of the oil storage tank.

[0015] The beneficial effect of a thin oil lubricated bearing assembly provided by the utility model is that: compared with the prior art, the interior of the housing is provided with an assembly chamber, and two bearing bodies are respectively arranged at the two ends of the assembly chamber, the transmission shaft passes through the housing, and the two bearing bodies are respectively sleeved on both sides of the transmission shaft and rotated with the transmission shaft. Among them, an oil storage tank is arranged at the bottom of the assembly chamber, and an oil inlet hole and an exhaust hole are provided at the top of the housing. An oil dipstick is longitudinally provided in the oil inlet hole, and the lower end of the oil dipstick extends into the oil storage tank, and an oil drain hole is provided at the bottom of the housing. Lubricating thin oil is stored in the oil storage tank, and the lubricating thin oil immerses the lower area of ​​the two bearing bodies, so that the two bearing bodies can be fully lubricated. The thin oil lubricated bearing assembly provided by the utility model enables the bearing assembly of the slurry pump to fully lubricate the bearing bodies on both sides of the transmission shaft with thin oil under different working conditions, thereby avoiding overheating of the bearings and ensuring the service life of the bearings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure of a thin oil lubricated bearing assembly provided by the utility model;

[0018] Figure 2for Figure 1 Longitudinal cross-sectional view of .

[0019] Description of reference numerals:

[0020] 1. Housing; 2. Transmission shaft; 3. Bearing body; 4. Assembly chamber; 5. Oil storage tank; 6. Lubricating oil; 7. Oil inlet hole; 8. Exhaust hole; 9. Oil dipstick; 10. Oil drain hole; 11. First mounting platform; 12. First inclined surface; 13. Breather; 14. Oil inlet sealing plug; 15. Second mounting platform; 16. Second inclined surface; 17. Oil drain sealing plug. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. is to distinguish different objects rather than to describe a specific order.

[0023] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", "high", "low", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the utility model.

[0024] See also Figure 1 and Figure 2Now, a thin oil lubricated bearing assembly provided by the utility model is described. A thin oil lubricated bearing assembly comprises a housing 1, a transmission shaft 2 and a bearing body 3. The housing 1 has an assembly chamber 4 inside, and two bearing bodies 3 are respectively arranged at both ends of the assembly chamber 4. The transmission shaft 2 passes through the housing 1. The two bearing bodies 3 are respectively sleeved on both sides of the transmission shaft 2 and rotate with the transmission shaft 2. An oil storage tank 5 is arranged at the bottom of the assembly chamber 4. The oil storage tank 5 stores lubricating thin oil 6 that immerses the lower area of ​​the two bearing bodies 3. An oil inlet hole 7 and an exhaust hole 8 are provided at the top of the housing 1. An oil dipstick 9 is longitudinally penetrated in the oil inlet hole 7. The lower end of the oil dipstick 9 extends into the oil storage tank 5. An oil drain hole 10 is provided at the bottom of the housing 1.

[0025] The utility model provides a thin oil lubricated bearing assembly. Compared with the prior art, the housing 1 has an assembly chamber 4 inside, two bearing bodies 3 are respectively arranged at the two ends of the assembly chamber 4, the transmission shaft 2 passes through the housing 1, and the two bearing bodies 3 are respectively sleeved on both sides of the transmission shaft 2 and rotated with the transmission shaft 2. Among them, an oil storage tank 5 is arranged at the bottom of the assembly chamber 4, an oil inlet hole 7 and an exhaust hole 8 are opened at the top of the housing 1, an oil dipstick 9 is longitudinally penetrated in the oil inlet hole 7, and the lower end of the oil dipstick 9 extends into the oil storage tank 5, and an oil discharge hole 10 is opened at the bottom of the housing 1. Lubricating thin oil 6 is stored in the oil storage tank 5, and the lubricating thin oil 6 immerses the lower area of ​​the two bearing bodies 3, which can fully lubricate the two bearing bodies 3. The utility model provides a thin oil lubricated bearing assembly, so that the bearing assembly of the slurry pump can fully lubricate the bearing bodies 3 on both sides of the transmission shaft 2 with thin oil under different working conditions, avoid overheating of the bearings, and ensure the service life of the bearings.

[0026] See also Figure 2 The exhaust hole 8 and the oil inlet hole 7 are respectively arranged on the left and right sides of the central longitudinal section of the housing 1. The central longitudinal section is a longitudinal section passing through the central axis of the transmission shaft 2. The exhaust hole 8 and the oil inlet hole 7 are respectively arranged on the left and right sides, which is convenient for adding thin oil and can reduce the influence of the gas discharged through the exhaust hole 8 on the sealing component on the oil inlet hole 7.

[0027] Specifically, a first mounting platform 11 is provided on the upper part of the housing 1, and the exhaust hole 8 and the oil inlet 7 are respectively provided on the left and right sides of the first mounting platform 11. One side of the upper end surface of the first mounting platform 11 is provided with a first inclined surface 12, the height of the first inclined surface 12 gradually decreases from the inside to the outside, and the oil inlet 7 is provided perpendicular to the first inclined surface 12. Therefore, the oil inlet 7 is also in an inclined state, and the oil dipstick 9 is coaxially penetrated in the oil inlet 7, and the oil dipstick 9 is also in an inclined state. The oil dipstick 9 in an inclined state can avoid the transmission shaft 2 and be tilted to be inserted into the thin oil in the oil storage tank 5. Compared with the oil mark and the oil level gauge, the oil dipstick 9 is more suitable for oil level measurement in cold areas.

[0028] Specifically, the upper end of the exhaust hole 8 is provided with a ventilator 13. The ventilator 13 is a device for providing air circulation, which can be a simple perforated plate or a complex mechanical device. Its main function is to ensure the circulation of air, prevent gas accumulation in a confined space, ensure air quality, protect the environment, or be used for specific process requirements. The ventilator 13 on the exhaust hole 8 can be a one-way air pressure valve. As the air pressure in the assembly chamber 4 increases, the one-way air pressure valve can be opened in one direction to release pressure.

[0029] See also Figure 2 The upper end of the oil inlet hole 7 is provided with an oil inlet sealing plug 14, and the oil dipstick 9 passes through the oil inlet sealing plug 14 and extends into the oil storage tank 5. The oil inlet sealing plug 14 is a rubber plug, and a through hole is provided in the middle thereof, and the oil dipstick 9 passes through the through hole and is sealed with the oil inlet sealing plug 14. At the same time, the lower end of the oil inlet sealing plug 14 is provided with an external thread in the circumferential direction, and the upper end of the oil inlet hole 7 is provided with an adapted internal thread, and the oil inlet sealing plug 14 is threadedly installed at the upper end of the oil inlet hole 7.

[0030] Specifically, the oil drain hole 10 is located below the same side of the air exhaust hole 8 .

[0031] See also Figure 2 The lower part of the housing 1 is provided with a second mounting platform 15, and one side of the lower end surface of the second mounting platform 15 is provided with a second inclined surface 16, the height of the second inclined surface 16 gradually increases from the inside to the outside, and the oil drain hole 10 is opened perpendicular to the second inclined surface 16. Therefore, the oil drain hole 10 is also in an inclined state, which can facilitate the smooth discharge of the thin oil from the oil storage tank 5.

[0032] The lower end surface of the oil drain hole 10 is provided with an oil drain sealing plug 17, the oil drain sealing plug 17 is provided with an external thread, the oil drain hole 10 is provided with an adaptive internal thread, the oil drain sealing plug 17 is threadedly installed in the oil drain hole 10, in order to ensure the sealing, the oil drain sealing plug 17 is sleeved with a rubber sealing ring, and the rubber sealing ring is pressed against the second inclined surface 16.

[0033] See also Figure 1 and Figure 2 The bottom surface of the oil storage tank 5 has a height increasing from the middle to both sides in the front-to-back direction, so that the impurities in the thin oil can be deposited in the middle of the oil storage tank 5 as much as possible, reducing the contact with the bearing body 3. The bottom surface of the oil storage tank 5 has a height decreasing from far away from the oil drain hole 10 to close to the oil drain hole 10 in the left-right direction, so that the impurities in the thin oil can be deposited as much as possible near the oil drain hole 10, which facilitates the smooth discharge of impurities.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A thin oil lubricated bearing assembly, characterized in that: The invention comprises a housing (1), a transmission shaft (2) and a bearing body (3), wherein the housing (1) has an assembly chamber (4) inside, and the two bearing bodies (3) are respectively arranged at the two ends of the assembly chamber (4), the transmission shaft (2) passes through the housing (1), and the two bearing bodies (3) are respectively sleeved on the two sides of the transmission shaft (2) and rotatably cooperate with the transmission shaft (2), an oil storage tank (5) is arranged at the bottom of the assembly chamber (4), and the oil storage tank (5) stores lubricating oil (6) for immersing the lower areas of the two bearing bodies (3), an oil inlet hole (7) and an exhaust hole (8) are provided at the top of the housing (1), an oil dipstick (9) is longitudinally penetrated in the oil inlet hole (7), and the lower end of the oil dipstick (9) extends into the oil storage tank (5), and an oil discharge hole (10) is provided at the bottom of the housing (1).

2. A thin oil lubricated bearing assembly according to claim 1, characterized in that: The exhaust hole (8) and the oil inlet hole (7) are respectively arranged on the left and right sides of the central longitudinal section of the housing (1).

3. A thin oil lubricated bearing assembly as claimed in claim 2, characterized in that: A first mounting platform (11) is provided on the upper portion of the housing (1), and the exhaust hole (8) and the oil inlet hole (7) are respectively opened on the left and right sides of the first mounting platform (11).

4. A thin oil lubricated bearing assembly as claimed in claim 3, characterized in that: One side of the upper end surface of the first mounting platform (11) is provided with a first inclined surface (12), the height of the first inclined surface (12) gradually decreases from the inside to the outside, and the oil inlet hole (7) is opened perpendicular to the first inclined surface (12).

5. The thin oil lubricated bearing assembly according to claim 1, characterized in that: The upper end of the exhaust hole (8) is provided with a ventilator (13).

6. The thin oil lubricated bearing assembly according to claim 1, characterized in that: An oil inlet sealing plug (14) is installed at the upper end of the oil inlet hole (7), and the oil dipstick (9) passes through the oil inlet sealing plug (14) and extends into the oil storage tank (5).

7. The thin oil lubricated bearing assembly according to claim 1, characterized in that: The oil drain hole (10) is located below the same side as the air exhaust hole (8).

8. The thin oil lubricated bearing assembly according to claim 1, characterized in that: A second mounting platform (15) is provided at the lower part of the housing (1), and a second inclined surface (16) is provided on one side of the lower end surface of the second mounting platform (15). The height of the second inclined surface (16) gradually increases from the inside to the outside, and the oil drain hole (10) is opened perpendicular to the second inclined surface (16).

9. The thin oil lubricated bearing assembly according to claim 1, characterized in that: An oil drain sealing plug (17) is provided on the lower end surface of the oil drain hole (10).

10. The thin oil lubricated bearing assembly according to claim 1, characterized in that: The front-to-back direction of the bottom surface of the oil storage tank (5) increases in height from the middle to both sides; the left-to-right direction of the bottom surface of the oil storage tank (5) decreases in height from away from the oil drain hole (10) to closer to the oil drain hole (10).

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