CN110792628B - Cooling and lubricating device for centrifugal pump bearing - Google Patents
Cooling and lubricating device for centrifugal pump bearing Download PDFInfo
- Publication number
- CN110792628B CN110792628B CN201911094027.0A CN201911094027A CN110792628B CN 110792628 B CN110792628 B CN 110792628B CN 201911094027 A CN201911094027 A CN 201911094027A CN 110792628 B CN110792628 B CN 110792628B
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- bearing
- oil
- conical disk
- slinger
- fixed ring
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- 230000001050 lubricating effect Effects 0.000 title claims abstract description 24
- 238000001816 cooling Methods 0.000 title claims abstract description 23
- 238000005461 lubrication Methods 0.000 claims abstract description 29
- 239000003921 oil Substances 0.000 claims description 186
- 239000010687 lubricating oil Substances 0.000 claims description 76
- 239000003595 mist Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mounting Of Bearings Or Others (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a centrifugal pump bearing cooling and lubricating device which mainly comprises a bearing box body, a pump shaft, a front box cover, a front bearing, a rear box cover and a box plug, wherein the pump shaft in the bearing box body is provided with a front bearing lubrication booster and a rear bearing lubrication booster at intervals, the front bearing lubrication booster is adjacent to the front bearing in distance, and the rear bearing lubrication booster is adjacent to the rear bearing in distance.
Description
Technical Field
The invention relates to the field of fluid machinery, in particular to a centrifugal pump bearing cooling and lubricating device.
Background
It is well known that a pump shaft is arranged in a bearing box of an existing centrifugal pump, a front bearing cover, a front bearing, a rear bearing and a rear bearing cover are arranged on the pump shaft of the bearing box, two oil slingers are arranged on the pump shaft in the bearing box, lubricating oil is arranged in the bearing box, an oil outlet is arranged at the bottom of the box, a valve plug is arranged on the oil outlet, and when the centrifugal pump works, the rotating pump shaft drives the oil slinger to rotate and brings the lubricating oil up to be thrown into the air for lubricating the bearing.
Industry prescribes that the bearing temperature of the centrifugal pump cannot exceed 71 ℃ at maximum, and a user requires that a factory test cannot be higher than 60 ℃ and can run for two and a half years continuously. However, it is difficult to meet these requirements when high temperature medium delivery, high load, continuous long-term operation, and unattended operation occur.
Various bearing housing cooling and lubricating devices have been developed on the market for cooling the temperature of the bearing, but none of them meets the above requirements.
The two conical bearings 6 used in the centrifugal pump have a larger width and a larger resistance to rotation, and thus affect the entry of the lubricating oil into the bearings, and therefore, the operating temperature is higher than that of the ball bearings of the same specification, but the conical bearings must be used in a high load state.
At present, no good solution exists, and forced lubrication is used, so that the lubricating oil is sprayed into the bearing box through an external lubricating oil station by using pressurized lubricating oil, and the effect is good, but the investment cost is high, the occupied area is large, and the maintenance cost is high.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide the centrifugal pump bearing cooling and lubricating device which is novel in structure, good in lubricating effect, obvious in cooling effect and long in service life.
The technical scheme adopted for solving the technical problems is as follows:
The centrifugal pump bearing cooling and lubricating device mainly comprises a bearing box body, a pump shaft, a front box cover, a front bearing, a rear box cover and a box plug, wherein a front bearing lubrication booster and a rear bearing lubrication booster are arranged on the pump shaft in the bearing box body at intervals, the front bearing lubrication booster is adjacent to the front bearing in distance, the rear bearing lubrication booster is adjacent to the rear bearing in distance,
The front bearing lubrication supercharger consists of a fixed ring I, a front oil slinger I, a front conical disk I, a rear oil slinger I, a rear conical disk I and a blade I, wherein an inner hole of the fixed ring I is fixedly sleeved on a pump shaft, the front end of the fixed ring I is sequentially provided with the front conical disk I and the front oil slinger I, the rear end of the fixed ring I is sequentially provided with the rear conical disk I and the rear oil slinger I, a small diameter end of the front conical disk I is fixedly connected with the front end of the fixed ring I, a large diameter end of the front conical disk I is fixedly connected with the front oil slinger I so as to be beneficial to being contacted with lubricating oil through the lower parts of the front oil slinger I and the rear oil slinger, lifting the lubricating oil, then throwing the lubricating oil to a bearing box body and a front bearing cavity under the action of inclined planes of the front conical disk I and the rear conical disk I, radiating the lubricating oil through oil mist, and lubricating the front bearing, a blade block I and an oil inlet hole I are circumferentially arranged on the front end face of the front conical disk I, the blade block I corresponds to the front bearing cavity, the blade block I is fixedly connected with the front bearing cavity through the oil inlet hole I, the small diameter end of the front conical disk I is fixedly connected with the front oil slinger I, and then the front bearing is cooled under the centrifugal action, and the front bearing is cooled down through the blade block;
The rear bearing lubrication supercharger consists of a fixed ring II, a front oil slinger II, a front conical disc II, a rear oil slinger II, a rear conical disc II and a blade II, wherein an inner hole of the fixed ring II is fixedly sleeved on a pump shaft, the front end of the fixed ring II is sequentially provided with the front conical disc II and the front oil slinger II, the rear end of the fixed ring II is sequentially provided with the rear conical disc II and the rear oil slinger II, a small diameter end of the front conical disc II is fixedly connected with the front end of the fixed ring II, a large diameter end of the front conical disc II is fixedly connected with the front oil slinger II so as to facilitate contact with lubricating oil through the front oil slinger II and lift the lubricating oil, the lubricating oil is thrown into a bearing box body and a rear bearing cavity under the action of inclined planes of the front conical disc II and the rear conical disc II, oil mist formed by throwing out the lubricating oil is used for lubricating the rear bearing, a blade block II and an oil inlet hole II are arranged on the rear end face of the rear conical disc II at intervals, the blade block II corresponds to the rear bearing cavity, the blade block II is guided into the inner face of the blade block II through the oil inlet hole II on the end face of the rear conical disc II, and then the lubricating oil is not blown into the bearing through the blade block II under the action, and the action of the blade block II is cooled down, so that the problem of the bearing cannot be solved, and the problem of the heat is solved, and the bearing is substantially well is solved, and the problem is solved, and the cooling is solved.
The circumference of the front end surface of the front oil slinger is deviated from a vertical plane backwards and extends towards the axle center to form a front inner convex ring I, so that a front V-shaped oil groove I is formed between the front inner convex ring I and a front conical disk I;
The circumference of the rear end surface of the rear oil slinger II deviates from the vertical surface forwards and extends towards the axle center to form a rear inner convex ring II, so that the rear inner convex ring II and the rear conical disk II form a rear V-shaped oil groove II,
The front bearing and the rear bearing are respectively provided with a front V-shaped oil groove, a rear V-shaped oil groove and a rear V-shaped oil groove, wherein the front V-shaped oil groove is arranged on the front side of the front bearing, the rear V-shaped oil groove is arranged on the rear side of the rear bearing, the front V-shaped oil groove is arranged on the rear side of the rear bearing, the rear V-shaped oil groove is arranged on the rear side of the rear bearing, and the rear V-shaped oil groove is arranged on the rear side of the rear bearing.
The circumference of the rear end face of the rear oil slinger is deviated from the vertical face forwards and extends towards the axis to form a rear inner convex ring I, so that a rear V-shaped oil groove I is formed between the rear inner convex ring I and the rear conical disk I, the circumference of the front end face of the front oil slinger is deviated from the vertical face backwards and extends towards the axis to form a front inner convex ring II, so that the rear front convex ring II and the front conical disk II form a front V-shaped oil groove II, and lubricating oil is further thrown to the periphery of the inner cavity of the bearing box body through the rear V-shaped oil groove I and the front V-shaped oil groove II, heat dissipation is carried out on the lubricating oil, and the temperature rise of the lubricating oil is avoided.
The invention can also respectively arrange the saw-tooth-shaped oil grooves on the two opposite surfaces of the front conical disk I and the rear conical disk I and the front conical disk II so as to be beneficial to throwing more lubricating oil into the bearing box body through the saw-tooth oil grooves, and oil drops are formed in the space of the bearing box body so as to achieve the effect of further radiating the lubricating oil.
The invention can also be provided with an oil receiving inclined plane on the inner wall of the bearing box body at the upper part of the rear bearing, an oil return hole is arranged on the bearing box body at the lower part of the rear bearing, an inclined oil guide hole is arranged on the oil receiving inclined plane, one end of the inclined oil guide hole is communicated with the inner cavity of the bearing box body at the front part of the rear bearing, the other end of the inclined oil guide hole is communicated with the cavity at the rear part of the rear bearing, the front end of the oil return hole is communicated with a lubricating oil cavity in the bearing box body, and the rear end of the oil return hole is communicated with the cavity at the rear part of the rear bearing, so that the rear bearing is comprehensively cooled through the inclined oil guide hole and the oil return hole.
The oil-gas separator can be arranged at the upper part of the bearing box body so as to achieve the effect of balancing the oil mist pressure in the bearing box body, the oil mist is blocked and returned into the bearing box body through the filter screen in the oil-gas separator, and the gas is released into the atmosphere through the vent hole of the oil-gas separator, so that the service life of the bearing is greatly prolonged.
By adopting the structure, the invention has the advantages of novel structure, good lubricating effect, obvious cooling effect, long service life and the like.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the front bearing lubrication supercharger of fig. 1.
Fig. 3 is a left side view of fig. 2.
Fig. 4 is the rear bearing lubrication booster of fig. 1.
Reference numerals: bearing box 1, pump shaft 2, front case lid 3, front bearing 4, rear bearing 5, rear case lid 6, box plug 7, front bearing lubrication booster 8, rear bearing lubrication booster 9, fixed ring 10, front oil slinger 11, front conical disk 12, rear oil slinger 13, rear conical disk 14, blade 15, oil inlet hole 16, fixed ring 17, front oil slinger 18, front conical disk 19, rear oil slinger 20, rear conical disk 21, blade 22, oil inlet hole 23, front inner convex ring 24, front V-shaped oil groove 25, inner convex ring 26, rear V-shaped oil groove 27, rear inner convex ring 28, rear V-shaped oil groove 29, front inner convex ring 30, front V-shaped oil groove 31, serrated oil hooking groove 32, oil receiving inclined plane 33, oil return hole 34 and inclined oil guide hole 35.
Detailed Description
The invention is described below with reference to the drawings and examples.
As shown in the drawings, the cooling and lubricating device for the centrifugal pump bearing mainly comprises a bearing box body 1, a pump shaft 2, a front box cover 3, a front bearing 4, a rear bearing 5, a rear box cover 6 and a box body plug 7, wherein the structures and connection relations of the bearing box body 1, the pump shaft 2, the front box cover 3, the front bearing 4, the rear bearing 5, the rear box cover 6 and the box body plug 7 are the same as those of the prior art, the details are omitted, a front bearing lubrication booster 8 and a rear bearing lubrication booster 9 are spaced on the pump shaft in the bearing box body 1, the front bearing lubrication booster 8 is adjacent to the front bearing in distance, the rear bearing lubrication booster 9 is adjacent to the rear bearing in distance,
The front bearing lubrication supercharger 8 consists of a fixed ring I10, a front oil slinger I11, a front conical disk I12, a rear oil slinger I13, a rear conical disk I14 and a blade I15, wherein an inner hole of the fixed ring I10 is fixedly sleeved on a pump shaft 2, the front end of the fixed ring I10 is sequentially provided with the front conical disk I12 and the front oil slinger I11, the rear end of the fixed ring I10 is sequentially provided with the rear conical disk I14 and the rear oil slinger I13, the small-diameter end of the front conical disk I12 is fixedly connected with the front end of the fixed ring I10, the large-diameter end of the front conical disk I is fixedly connected with the front oil slinger I11, so as to facilitate the contact of lubricating oil through the lower parts of the front oil slinger I11 and the rear oil slinger I13, the lifting of the lubricating oil, the lubricating oil is thrown into the inner cavities of a bearing box 1 and a front bearing 4 under the action of inclined planes of the front conical disk I12 and the rear conical disk I14, the lubricating oil is carried out through oil mist, a blade block I15 and an oil inlet hole 16 are arranged at intervals on the front end face of the front conical disk I12, the blade block I15 corresponds to the inner cavity of the front bearing 4, the front bearing is cooled by the front end face of the front conical disk, the front bearing is cooled down by the front end face of the front conical disk 4, the front bearing is cooled down by the front end of the front bearing 4, and the front bearing is cooled down by the front end of the front bearing;
The rear bearing lubrication supercharger 9 consists of a fixed ring II 17, a front oil slinger II 18, a front conical disk II 19, a rear oil slinger II 20, a rear conical disk II 21 and a blade II 22, wherein an inner hole of the fixed ring II 17 is fixedly sleeved on a pump shaft 2, the front end of the fixed ring II 17 is sequentially provided with the front conical disk II 19 and the front oil slinger II 18, the rear end of the fixed ring II is sequentially provided with the rear conical disk II 21 and the rear oil slinger II 20, the small diameter end of the front conical disk II 19 is fixedly connected with the front end of the fixed ring II 17, the large diameter end of the front conical disk II is fixedly connected with the front oil slinger II 18 so as to be beneficial to contacting lubricating oil through the front oil slinger II 18 and lifting the lubricating oil and then throwing the lubricating oil into an inner cavity of the bearing box 1 and the rear bearing under the action of the inclined plane of the front conical disk II 19 and the rear conical disk II 21, and lubricating oil mist formed by the lubricating oil slinger is blown out of the lubricating oil, a blade II 22 and an oil inlet hole II 23 is formed on the rear end face of the rear bearing 5, the small diameter end of the front conical disk II 19 is sequentially provided with a blade II 22 and an oil inlet hole II 23, the small diameter end of the front end face of the front conical disk II 19 is correspondingly connected with the front end face of the fixed ring II 18, and the rear end face of the rear bearing II is not attached to the rear bearing 22 and the rear bearing is cooled down by the inner diameter of the rear bearing 22.
The circumference of the front end surface of the first front oil slinger 11 deviates from the vertical surface backwards and extends towards the axis to form a first front inner convex ring 24, so that a first front V-shaped oil groove 25 is formed between the first front inner convex ring 24 and the first front conical disk 11;
The circumference of the rear end surface of the second rear oil slinger 20 deviates from the vertical surface forwards and extends towards the axis to form a second rear inner convex ring 26, so that the second rear inner convex ring 26 and the second rear conical disk form a second rear V-shaped oil groove 27,
So as to be beneficial to taking up the lubricating oil through the first front V-shaped oil groove 25, intensively throwing the lubricating oil to the front bearing 4 part through the first front V-shaped oil groove 25, simultaneously taking up the lubricating oil through the second rear V-shaped oil groove 27, intensively throwing the lubricating oil to the rear bearing part through the second rear V-shaped oil groove 27, the dynamic pressure generated by the rotation of the front bearing 4 and the rear bearing 5 is overcome, so that the lubricating oil is well attached to the front bearing 4 and the rear bearing 5, and the effects of lubricating and cooling the front bearing 4 and the rear bearing 5 and radiating the lubricating oil are achieved.
The circumference of the rear end face of the rear oil slinger is deviated from the vertical face forwards and extends towards the axis to form a rear inner convex ring I28, so that a rear V-shaped oil groove I29 is formed between the rear inner convex ring I28 and the rear conical disk I14, the circumference of the front end face of the front oil slinger II 18 is deviated from the vertical face backwards and extends towards the axis to form a front inner convex ring II 30, so that the rear front convex ring II 18 and the front conical disk II 19 form a front V-shaped oil groove II 31, and lubricating oil is thrown to the periphery of the inner cavity of the bearing box body through the rear V-shaped oil groove I29 and the front V-shaped oil groove II 31, heat dissipation is carried out on the lubricating oil, and the temperature rise of the lubricating oil is avoided.
The invention can also respectively arrange the saw-tooth oil hooking grooves 32 on the opposite surfaces of the front conical disk I12 and the rear conical disk I14 and the front conical disk II 19 and the rear conical disk II 21 so as to be beneficial to throwing more lubricating oil into the bearing box body 1 through the saw-tooth oil grooves 32, and oil drops are formed in the space of the bearing box body 1 so as to achieve the effect of further radiating the lubricating oil.
The extension lines of the two end surfaces of the first vane block and the second vane block are respectively intersected with the axis of the pump shaft and are positioned at the outer side of the oil outlet, so that lubricating oil can be more easily led into the front bearing and the rear bearing.
The invention can also be provided with an oil receiving inclined plane 33 on the inner wall of the bearing box 1 at the upper part of the rear bearing 4, an oil return hole 34 is arranged on the bearing box 1 at the lower part, an inclined oil guide hole 35 is arranged on the oil receiving inclined plane 33, one end of the inclined oil guide hole 35 is communicated with the inner cavity of the bearing box 1 at the front part of the rear bearing 5, the other end of the inclined oil guide hole 35 is communicated with the cavity at the rear part of the rear bearing 5, the front end of the oil return hole 34 is communicated with an oil cavity in the bearing box 1, and the rear end of the oil return hole is communicated with the cavity at the rear part of the rear bearing 5, so that the rear bearing can be cooled in an omnibearing way through the inclined oil guide hole 35 and the oil return hole 34.
The invention can also install the oil-gas separator 36 on the upper portion of the bearing housing 1, in order to achieve the function of balancing the oil mist pressure in the bearing housing, and through the filter screen in the oil-gas separator, block the oil mist and make it return to the bearing housing, and the gas releases into the atmosphere through the vent hole of the oil-gas separator, has greatly improved the life span of the bearing.
When the invention works, the bearing box body is filled with lubricating oil, the pump shaft rotates to drive the front bearing lubrication booster 8 and the rear bearing lubrication booster 9 in the bearing box body to rotate,
The lower parts of the front oil slinger I11 and the rear oil slinger I13 are contacted with lubricating oil, the lubricating oil is lifted and then thrown to the inner cavities of the bearing box body 1 and the front bearing 4 under the action of inclined planes of the front conical disc I12 and the rear conical disc I14, the lubricating oil is radiated through oil mist, and as the first blade block corresponds to the inner cavity of the front bearing 4, the lubricating oil is led into the inner surface of the first blade block 15 through the first oil inlet hole 16 on the end surface of the first front conical disc I12, and then the lubricating oil is blown into the front bearing 4 through the first blade block 15 under the centrifugal action, so that the front bearing 4 is lubricated and cooled; meanwhile, the front oil slinger II 18 and the rear oil slinger II 20 are contacted with lubricating oil, the lubricating oil is lifted and then thrown to the inner cavities of the bearing box body 1 and the rear bearing under the action of inclined planes of the front conical disc II 19 and the rear conical disc II 21, and the lubricating oil is radiated through oil mist formed by the lubricating oil slinger, so that the rear bearing 5 is lubricated; simultaneously, the oil inlet hole II 23 on the end surface of the second rear conical disk 21 guides lubricating oil into the inner surface of the second blade block 22, and then the lubricating oil is blown into the rear bearing 5 through the second blade block 22 under the centrifugal action to lubricate and cool the rear bearing 5; in the running process, the first V-shaped oil groove 25 is used for carrying lubricating oil, the first V-shaped oil groove 25 is used for intensively throwing lubricating oil to the front bearing 4, the second V-shaped oil groove 27 is used for carrying lubricating oil, and the second V-shaped oil groove 27 is used for intensively throwing lubricating oil to the rear bearing, so that dynamic pressure generated by rotation of the front bearing 4 and the rear bearing 5 is overcome, the lubricating oil is well attached to the front bearing 4 and the rear bearing 5, and the effects of lubricating and cooling the front bearing 4 and the rear bearing 5 and radiating the lubricating oil are achieved;
In the rotating process, the first V-shaped oil groove 25 is used for carrying lubricating oil, the first V-shaped oil groove 25 is used for intensively throwing the lubricating oil to the front bearing 4, the second V-shaped oil groove 27 is used for carrying the lubricating oil, and the second V-shaped oil groove 27 is used for intensively throwing the lubricating oil to the rear bearing, so that the effects of lubricating and cooling the front bearing 4 and the rear bearing 5 and radiating the lubricating oil are achieved.
In the rotating process, the sawtooth-shaped oil grooves 32, the V-shaped oil grooves I and the V-shaped oil grooves II are used for lifting the lubricating oil 5 to be thrown into the air, oil mist or oil drops are formed in the bearing box 1, and the lubricating oil blown from the oil outlet holes is blown onto the bearing directionally through the first blade block 15 and the second blade block 27, so that the substantial technical problem that the lubricating oil cannot be perfectly adhered to the bearing due to dynamic pressure formed by rotation of the bearing is solved.
For the lubricating oil thrown to the inner space of the bearing box body, the lubricating oil drops fall on the oil receiving inclined plane, fall on the pump shaft rotating in the cavity at the rear end of the rear bearing through the inclined oil guide hole 35 on the oil receiving inclined plane, and the splashed oil drops are injected into the rear end of the rear bearing and then flow into the lubricating oil of the bearing box body along the oil return hole 34, so that the circulation is repeated.
In the high-speed operation process of the pump shaft, oil mist flows out along the oil-gas separator due to high oil pressure, the oil mist is blocked by a filter screen in the oil-gas separator and returns into the bearing box body, and gas is released into the atmosphere through a vent hole of the oil-gas separator, so that the effect of balancing the oil mist pressure in the bearing box body is achieved, and the service life of the bearing is greatly prolonged.
The invention adopts the zigzag oil groove 32, the V-shaped oil groove I and the V-shaped oil groove II to be responsible for lifting the lubricating oil 5 to be thrown into the air, forms oil mist or oil drops in the bearing box 1, and then directionally blows the lubricating oil blown from the oil outlet to the bearing through the blade block I and the blade block II, thereby solving the substantial technical problem that the lubricating oil can not be perfectly adhered to the bearing due to the dynamic pressure formed by the rotation of the bearing, and having the advantages of novel structure, good lubricating effect, obvious cooling effect, long service life and the like.
Claims (7)
1. The centrifugal pump bearing cooling and lubricating device is characterized by comprising a bearing box body, a pump shaft, a front box cover, a front bearing, a rear box cover and a box plug, wherein the pump shaft in the bearing box body is provided with a front bearing lubrication booster and a rear bearing lubrication booster at intervals, the front bearing lubrication booster is adjacent to the front bearing in distance, the rear bearing lubrication booster is adjacent to the rear bearing in distance,
The front bearing lubrication supercharger consists of a fixed ring I, a front oil slinger I, a front conical disk I, a rear oil slinger I, a rear conical disk I and a blade I, wherein an inner hole of the fixed ring I is fixedly sleeved on a pump shaft, the front end of the fixed ring I is sequentially provided with the front conical disk I and the front oil slinger I, the rear end of the fixed ring I is sequentially provided with the rear conical disk I and the rear oil slinger I, a small-diameter end of the front conical disk I is fixedly connected with the front end of the fixed ring I, a large-diameter end of the front conical disk I is fixedly connected with the front oil slinger I, a blade I and an oil inlet hole I are arranged on the front end surface of the front conical disk I at intervals, and the blade I corresponds to an inner cavity of the front bearing;
The rear bearing lubrication supercharger consists of a fixed ring II, a front oil slinger II, a front conical disc II, a rear oil slinger II, a rear conical disc II and a blade II, wherein an inner hole of the fixed ring II is fixedly sleeved on a pump shaft, the front end of the fixed ring II is sequentially provided with the front conical disc II and the front oil slinger II, the rear end of the fixed ring II is sequentially provided with the rear conical disc II and the rear oil slinger II, a small-diameter end of the front conical disc II is fixedly connected with the front end of the fixed ring II, a large-diameter end of the front conical disc II is fixedly connected with the front oil slinger II, a blade block II and an oil inlet hole II are arranged on the rear end face of the rear conical disc II at intervals, and the blade block II corresponds to an inner cavity of the rear bearing.
2. The centrifugal pump bearing cooling and lubricating device according to claim 1, wherein the front end surface of the front oil slinger is circumferentially and backwardly deviated from a vertical plane and extends toward the axial center to form a front inner convex ring I, so that a front V-shaped oil groove I is formed between the front inner convex ring I and the front conical disk I;
The circumference of the rear end surface of the second rear oil slinger deviates from the vertical surface forwards and extends towards the axis to form a second rear inner convex ring, so that the second rear inner convex ring and the second rear conical disk form a second rear V-shaped oil gallery.
3. The cooling and lubricating device for the centrifugal pump bearing according to claim 2, wherein the rear end face of the rear oil slinger is circumferentially and forwardly deviated from a vertical plane and extends toward the axial center to form a rear inner convex ring I, so that a rear V-shaped oil groove I is formed between the rear inner convex ring I and the rear conical disk I, and the front end face of the front oil slinger is circumferentially and rearwardly deviated from the vertical plane and extends toward the axial center to form a front inner convex ring II, so that the rear front convex ring II and the front conical disk II form a front V-shaped oil groove II.
4. A centrifugal pump bearing cooling and lubricating device according to claim 1,2 or 3, wherein the first front conical disk and the first rear conical disk and the second front conical disk and the second rear conical disk are respectively provided with saw-tooth oil hooking grooves on opposite surfaces thereof.
5. The centrifugal pump bearing cooling and lubricating device according to claim 1,2 or 3, wherein the inner wall of the bearing box body at the upper part of the rear bearing is provided with an oil receiving inclined plane, the bearing box body at the lower part is provided with an oil return hole, the oil receiving inclined plane is provided with an inclined oil guide hole, one end of the inclined oil guide hole is communicated with the inner cavity of the bearing box body at the front part of the rear bearing, the other end of the inclined oil guide hole is communicated with the cavity at the rear part of the rear bearing, the front end of the oil return hole is communicated with the lubricating oil cavity in the bearing box body, and the rear end of the oil guide hole is communicated with the cavity at the rear part of the rear bearing.
6. The centrifugal pump bearing cooling and lubricating device according to claim 5, wherein the extension lines of the first blade block and the second blade block are respectively intersected with the axis of the pump shaft and are positioned outside the oil outlet.
7. The centrifugal pump bearing cooling and lubricating device according to claim 6, wherein an oil-gas separator is arranged at the upper part of the bearing box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911094027.0A CN110792628B (en) | 2019-11-11 | 2019-11-11 | Cooling and lubricating device for centrifugal pump bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911094027.0A CN110792628B (en) | 2019-11-11 | 2019-11-11 | Cooling and lubricating device for centrifugal pump bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110792628A CN110792628A (en) | 2020-02-14 |
| CN110792628B true CN110792628B (en) | 2024-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911094027.0A Active CN110792628B (en) | 2019-11-11 | 2019-11-11 | Cooling and lubricating device for centrifugal pump bearing |
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| CN112460035A (en) * | 2020-12-22 | 2021-03-09 | 河北兆宏机械泵业有限公司 | Hot oil pump convenient for oil-gas separation |
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| CN200975362Y (en) * | 2006-12-04 | 2007-11-14 | 上海连成（集团）有限公司 | Horizontal pump oil chamber improved lubricating heat radiating device |
| US7878757B2 (en) * | 2007-03-16 | 2011-02-01 | VRC, Inc | Centrifugal water pump |
| GB0720479D0 (en) * | 2007-10-13 | 2007-11-28 | Cummins Turbo Tech Ltd | Rotating machine and oil control device |
| CN206753976U (en) * | 2017-03-16 | 2017-12-15 | 上海梅山钢铁股份有限公司 | It is provided with the one step single sucking cantilever centrifugal pump for getting rid of oily impeller |
| CN209212663U (en) * | 2018-12-18 | 2019-08-06 | 夏勇 | It is easy to the oil field centrifugal pump of lubricating oil observation and lubrication in bearing housing |
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