CN211924551U - Bearing box body with internal circulation lubrication and center support type single-stage cantilever centrifugal pump thereof - Google Patents
Bearing box body with internal circulation lubrication and center support type single-stage cantilever centrifugal pump thereof Download PDFInfo
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- CN211924551U CN211924551U CN202020256718.8U CN202020256718U CN211924551U CN 211924551 U CN211924551 U CN 211924551U CN 202020256718 U CN202020256718 U CN 202020256718U CN 211924551 U CN211924551 U CN 211924551U
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Abstract
The utility model provides a lubricated bearing box of inner loop, including bearing gland and bearing box, bearing gland passes through seal gasket and bearing box bolted connection, the bearing box outside is equipped with its axially extended heat dissipation gusset, and the outside upper end of bearing box is equipped with air vent and vertical direction vibration monitoring and connects the hole, and bearing box left side is equipped with horizontal direction vibration monitoring and connects hole, lubricating oil heater connects the hole and the water-cooling inlet connects the hole, and bearing box right side is equipped with finned tube temperature monitoring and connects hole, constant position oil cup to connect hole and water-cooling finned tube export and connect the hole. Lubricating oil for lubricating the deep groove ball bearing and the angular contact ball bearing forms two circulation loops in the bearing box body, the temperature of the lubricating oil is reduced through the heat dissipation rib plate outside the bearing box body, the fan at the driving end of the bearing box body and the water-cooling finned tube in the oil storage cavity of the bearing box body, the flowing lubricating oil can eliminate local high temperature of the bearing, and the service life of the bearing and the lubricating performance of the lubricating oil are greatly improved.
Description
Technical Field
The utility model belongs to the technical field of fluid conveying equipment, specifically speaking relates to a lubricated bearing housing of inner loop and center support formula single-stage cantilever centrifugal pump thereof.
Background
The single-stage cantilever centrifugal pump has a large consumption in the petroleum refining and chemical industry market, and accounts for more than 70% of the total pump consumption, the temperature rise of the bearing is generally high when the single-stage cantilever centrifugal pump in China is used at present, particularly, the temperature reduction of the bearing becomes a big difficulty under the high-temperature working condition, and the service life of the bearing can be greatly reduced due to the high temperature rise of the bearing. In order to solve the above technical problems, the following methods are generally adopted in the prior art:
firstly, increase the water-cooling jacket in the outside of bearing box, this method is to bearing outer ring cooling, can lead to bearing temperature distribution uneven, more influences the life of bearing.
Secondly, water cooling circulation is added in the lubricating oil cavity to reduce the temperature of the lubricating oil, and as the lubricating oil does not circulate and has poor heat conductivity, the bearing rolling body rotating at high speed can cause the lubricating oil around the bearing rolling body to generate local high temperature rise, so that the local temperature rise of the bearing is too high, and the service life of the bearing is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned problem and provide a lubricated bearing housing of inner loop and center-supporting formula single-stage cantilever centrifugal pump thereof.
The technical scheme of the utility model is realized like this: the bearing box body with internal circulation lubrication comprises a bearing gland and a bearing box body, the bearing gland is connected with the bearing box body through a sealing gasket by bolts, the bearing box body is externally provided with a heat dissipation rib plate extending axially, the upper end of the outside of the bearing box body is provided with an air vent and a vertical vibration monitoring connection hole, the left side of the bearing box body is provided with a horizontal vibration monitoring connection hole, a lubricating oil heater connection hole and a water-cooling finned tube inlet connection hole, the right side of the bearing box body is provided with a temperature monitoring connection hole, a constant-position oil cup connection hole and a water-cooling finned tube outlet connection hole, an oil collecting plate is arranged in the bearing box body, an oil return hole A and an oil return groove B are arranged at the front end of the oil collecting plate, an oil return hole B is arranged at the rear end of the oil collecting plate, an oil return groove A is formed in the bearing gland and is communicated with an oil return hole B, a lubricating oil storage cavity Q is formed in the lower portion of the bearing box body, and an oil discharge hole is formed in the bottom of the bearing box body;
preferably, the upper surface of the oil collecting plate is a plane with a slope;
a center supporting type single-stage cantilever centrifugal pump of a bearing box body using internal circulation lubrication comprises a pump body, a pump cover, a closed impeller and a shaft, wherein the bearing box body is connected to the pump cover through bolts, the pump body is provided with an inlet and an outlet, the pump body is internally provided with the shaft, the shaft is connected to the bearing box body through a front bearing and a rear bearing, the shaft is provided with the closed impeller through a key and an impeller nut, the shaft driving end is provided with a pair of angular contact rolling bearings, the rear ends of the angular contact rolling bearings are arranged between the bearing cover and the shaft, one side of the closed impeller is provided with a deep groove ball bearing, the front end of the deep groove ball bearing is arranged between the bearing box body and the shaft, and a bearing;
preferably, an oil slinger seat is arranged on the shaft, and an oil slinger is arranged on the oil slinger seat;
preferably, the shaft extends out of the pump cover and is provided with a mechanical seal.
The utility model has the advantages that: the utility model discloses a take lubricating oil circulation circuit's bearing box body, the utility model discloses a bearing box body, through fixing the oil slinger in the epaxial oil slinger seat that throws away, get rid of lubricating oil on the collection oil board in the bearing box body, lubricating oil gets into deep groove ball bearing through bearing box body front end oil gallery and oil gallery near impeller one side, get back to bearing box body lubricating oil storage chamber after being close to deep groove ball bearing through flowing through, get into angular contact ball bearing through the oil gallery on the bearing box body and the oil gallery on the bearing gland near drive end one side, get back to bearing box body lubricating oil storage chamber after flowing through angular contact ball bearing. The lubricating oil for lubricating the deep groove ball bearing and the angular contact ball bearing forms two circulation loops in the bearing box body, the heat generated by friction between the bearing rolling body and the inner ring and the outer ring can be taken away by the circulating lubricating oil at any time, the temperature of the lubricating oil is reduced through the heat dissipation rib plate outside the bearing box body, the fan at the driving end of the bearing box body and the water-cooling finned tube in the oil storage cavity of the bearing box body, the flowing lubricating oil can eliminate local high temperature of the bearing, the deterioration of the lubricating oil caused by local high-temperature carbonization of the lubricating oil is reduced, and the service life of the.
Drawings
Fig. 1 is a schematic perspective view of a bearing housing of the present invention;
FIG. 2 is a left side view of the bearing housing of the present invention;
FIG. 3 is a right side view of the bearing housing of the present invention;
FIG. 4 is a cut-away view of the bearing housing of the present invention;
FIG. 5 is a schematic perspective view of the bearing cover of the present invention;
FIG. 6 is a perspective cutaway view of a center support single stage cantilever pump according to the present invention;
fig. 7 a perspective view of a center-supported single-stage cantilever pump according to the present invention.
Description of the parts: 1. a fan, 2, a bearing gland, 221, oil return grooves A, 3, a bearing isolator, 4, an angular contact rolling bearing, 5, an oil slinger, 6, an oil separator, 7, a constant-position oil cup, 8, a bearing box body, 801, a heat dissipation rib plate, 802, a vent hole, 803, a vertical direction vibration monitoring connection hole, 804, a horizontal direction vibration monitoring connection hole, 805, a lubricating oil heater connection hole, 806, a water-cooling finned tube inlet connection hole, 807, a temperature monitoring connection hole, 808, a constant-position oil cup connection hole, 809, the oil-cooling finned tube comprises a water-cooling finned tube outlet connecting hole, 821, an oil collecting plate, 822, oil return holes A and 823, oil return grooves B and 824, oil return holes B and 830, an oil discharge hole, 9, a shaft, 10, a deep groove ball bearing, 11, a mechanical seal, 12, a pump cover, 13, a pump body, 14, a sealing ring, 15, a closed impeller, 16, an impeller nut, 22, an inlet, 33, an outlet, Q and a lubricating oil storage cavity.
Detailed Description
For better understanding and implementation, the bearing housing with internal circulation lubrication and the center-supporting single-stage cantilever centrifugal pump thereof will be described in detail with reference to the accompanying drawings, but these embodiments are not limited to the present invention, and all changes in structure, method and function made by designers in the field related to the present invention according to these embodiments are included in the scope of the present invention.
As shown in fig. 1 to 5, an internal circulation lubricated bearing housing comprises a bearing gland 2, a bearing housing 8 and a heat dissipating rib plate 801 extending axially from the outside of the bearing housing 8, the upper end of the outside of the bearing housing 8 is provided with a vent hole 802 and a vertical vibration monitoring connection hole 803, the left side of the bearing housing 8 is provided with a horizontal vibration monitoring connection hole 804, a lubricant heater connection hole 805 and a water-cooling finned tube inlet connection hole 806, the right side of the bearing housing 8 is provided with a temperature monitoring connection hole 807, an oil window/constant oil cup connection hole 808 and a water-cooling finned tube outlet connection hole 809, the inside of the bearing housing 8 is provided with an oil collecting plate 821, the upper surface of the oil collecting plate 821 is a plane with a certain inclination, the front end of the oil collecting plate 821 is provided with an oil return hole 822 and an oil return groove 823, the rear end of the oil collecting plate 821 is provided with an oil return hole 824, the bearing gland 2 is provided with, the lower part of the bearing box body 8 is a lubricating oil storage cavity Q, the bottom of the bearing box body 8 is provided with an oil discharge hole 830, and the bearing gland 2 is connected with the bearing box body 8 through a sealing gasket by bolts.
As shown in fig. 6 and 7, the center-supported single-stage cantilever centrifugal pump using the bearing housing with internal circulation lubrication comprises a pump body 13, an inlet 22 and an outlet 33 which are arranged on the pump body 13, wherein a shaft 9 is arranged in the pump body 13, a closed impeller 15 is arranged on the shaft 9, the closed impeller 15 is arranged on the shaft 9 through a key, a pair of angular contact rolling bearings 4 is arranged at the driving end of the shaft 9, and a deep groove ball bearing 10 is arranged at one side close to the impeller 15. And a mechanical seal 11 is arranged at the position of the shaft 9 extending out of the pump cover 12. The rear end of the angular contact rolling bearing 4 is arranged between the bearing gland 2 and the shaft 9, the front end of the deep groove ball bearing is arranged between the bearing box body 8 and the shaft 9, and a bearing isolator is arranged between the front end of the deep groove ball bearing 10 and the bearing box body 8 and the shaft 9 and is provided with a bearing isolator 3. The mechanical seal matched with the bearing box body has long service life and reliable sealing performance. The utility model discloses a bearing box surface arranged the heat dissipation gusset, but natural cooling or cool off through the fan.
The utility model discloses a behind the foretell structural feature, the performance parameter scope that can reach as follows:
flow rate: 3 to 2250 m3/h
Lift: 7-360 m
Rotating speed: 980-2980 r/min
It should be understood that the present description has been made in terms of embodiments, but not every embodiment includes only one independent technical solution, and the above-mentioned ranges of flow and lift are implemented by a plurality of technical solutions, and such description of the present description is only for the purpose of clearly expressing the intention.
The above list of details is only for the concrete description and illustration of the feasible embodiments of the present invention, and is not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the core content of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The bearing box body with internal circulation lubrication comprises a bearing gland (2) and a bearing box body (8), wherein the bearing gland (2) is in bolted connection with the bearing box body (8) through a sealing gasket, and is characterized in that a heat dissipation rib plate (801) extending axially is arranged outside the bearing box body (8), a vent hole (802) and a vertical direction vibration monitoring connection hole (803) are arranged at the upper end outside the bearing box body (8), a horizontal direction vibration monitoring connection hole (804), a lubricating oil heater connection hole (805) and a water-cooling finned tube inlet connection hole (806) are arranged at the left side of the bearing box body (8), a temperature monitoring connection hole (807), a constant position oil cup connection hole (808) and a water-cooling finned tube outlet connection hole (809) are arranged at the right side of the bearing box body (8), an oil collecting plate (821) is arranged inside the bearing box body (8), and an oil return hole A (822) and an, the oil collecting plate (821) rear end is equipped with oil gallery B (824), be equipped with oil gallery A (221) on bearing gland (2), oil gallery A (221) and oil gallery B (824) intercommunication, bearing box (8) lower part is lubricating oil storage chamber Q, and bearing box (8) bottom is equipped with oil drain hole (830).
2. The internally circulating lubricated bearing housing according to claim 1, wherein said oil collector plate (821) is formed with a tapered upper surface.
3. The center-supported single-stage cantilever centrifugal pump using the bearing housing with internal circulation lubrication according to claim 1 or 2, comprising a pump body (13), a pump cover (12), a closed impeller (15) and a shaft (9), wherein the bearing housing (8) is connected to the pump cover (12) by bolts, the pump body (13) is provided with an inlet (22) and an outlet (33), the pump body (13) is internally provided with the shaft (9), the shaft (9) is connected to the bearing housing (8) by front and rear bearings, the shaft (9) is provided with the closed impeller (15) by a key and an impeller nut (16), the driving end of the shaft (9) is provided with a pair of angular contact rolling bearings (4), the rear end of each angular contact rolling bearing (4) is arranged between the bearing cover (2) and the shaft (9), one side of the closed impeller (15) is provided with a deep groove ball bearing (10), and the front end of the deep groove ball bearing (10) is arranged between the bearing, a bearing isolator (3) is arranged between the front end of the deep groove ball bearing (10) and the bearing box body (8) and between the front end of the deep groove ball bearing and the shaft (9).
4. The center-supported single-stage cantilever centrifugal pump using the internally circulating lubricated bearing housing according to claim 3, wherein said shaft (9) is provided with an oil slinger seat on which an oil slinger (5) is provided.
5. The center-supported single-stage cantilever centrifugal pump using internal circulation lubrication of bearing housing according to claim 3 or 4, wherein the shaft (9) is provided with a mechanical seal (11) where it extends out of the pump cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020256718.8U CN211924551U (en) | 2020-03-05 | 2020-03-05 | Bearing box body with internal circulation lubrication and center support type single-stage cantilever centrifugal pump thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020256718.8U CN211924551U (en) | 2020-03-05 | 2020-03-05 | Bearing box body with internal circulation lubrication and center support type single-stage cantilever centrifugal pump thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211924551U true CN211924551U (en) | 2020-11-13 |
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ID=73348102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020256718.8U Active CN211924551U (en) | 2020-03-05 | 2020-03-05 | Bearing box body with internal circulation lubrication and center support type single-stage cantilever centrifugal pump thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211924551U (en) |
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2020
- 2020-03-05 CN CN202020256718.8U patent/CN211924551U/en active Active
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Effective date of registration: 20221011 Address after: Room 1902, Building 2, MSD-G District, TEDA, No. 57, Second Street, Economic and Technological Development Zone, Binhai New Area, Tianjin 300457 Patentee after: Sunshine pump (Tianjin) Co.,Ltd. Patentee after: YANTAI SUNSHINE PUMP Co.,Ltd. Address before: 809 Xincheng street, Muping Economic Development Zone, Yantai City, Shandong Province 264100 Patentee before: YANTAI SUNSHINE PUMP Co.,Ltd. |