CN110821876B - Bearing lubrication supercharging device of horizontal centrifugal pump - Google Patents
Bearing lubrication supercharging device of horizontal centrifugal pump Download PDFInfo
- Publication number
- CN110821876B CN110821876B CN201911094004.XA CN201911094004A CN110821876B CN 110821876 B CN110821876 B CN 110821876B CN 201911094004 A CN201911094004 A CN 201911094004A CN 110821876 B CN110821876 B CN 110821876B
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- Prior art keywords
- oil
- bearing
- oil slinger
- pump shaft
- slinger
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- 238000005461 lubrication Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 201
- 239000010687 lubricating oil Substances 0.000 claims description 29
- 230000000452 restraining effect Effects 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rolling Contact Bearings (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a bearing lubrication supercharging device of a horizontal centrifugal pump, which comprises a bearing box body, a bearing box cover, a roller bearing, a bearing bush, a sliding bearing oil slinger, a lock nut and a bearing anti-rotation sleeve, and is characterized by further comprising an oil slinger constraint sleeve and a fixed ring, wherein the oil slinger constraint sleeve is arranged in the bearing box body, the axle center of the oil slinger constraint sleeve is concentric with the axle center of a pump shaft and is positioned above the axle center of the pump shaft, the outer end of the oil slinger constraint sleeve is connected with the bearing box body, one end of an inner hole of the oil slinger constraint sleeve is connected with the periphery of the fixed ring, oil slinger jacks are respectively arranged on two side walls of the other end face, the inner lower wall of the bearing bush is in contact with the lower wall of the pump shaft, a top gap is formed between the upper wall and the pump shaft, and a side gap is formed between the two side walls and the pump shaft, so that the pump shaft is prevented from being in large-area contact with the bearing bush in the high-speed rotation process.
Description
Technical Field
The invention relates to the field of fluid machinery, in particular to a bearing lubrication pressurization device of a horizontal centrifugal pump.
Background
At present, the existing centrifugal pump mainly comprises a pump body, a driving end bearing part, a mechanical sealing body, a rotor part, a non-driving end bearing part, a pump shaft and a driving part, wherein a stator part in the pump body mainly comprises the driving end bearing part, the non-driving end bearing part, a suction section, a middle section and a discharge section, the middle section is formed by axially connecting a unit middle section in series along the pump shaft, and the stop mouths of the parts are matched and rigidly connected; the rotor component in the pump body is fixed on the pump shaft by bearing, impeller, pump shaft, balance plate, non-drive end bearing component includes bearing box, bearing box lid, roller bearing, oil slinger, slide bearing, lock nut, bearing anti-rotation cover, bearing box tip and bearing box lid sealing fixed connection, be equipped with slide bearing, oil slinger, bearing anti-rotation cover and lock nut on the pump shaft in the bearing box in proper order, there is lubricating oil in the bearing box body, the bearing box bottom is equipped with the oil-out, be equipped with the valve plug on the oil-out, fixed cover has antifriction bearing on the bearing anti-rotation cover, antifriction bearing outer wall and bearing box fixed connection, during the centrifugal pump work, rotatory pump shaft drives the oil slinger rotation to take up lubricating oil, throw to the cavity upper portion of bearing box and fall into the pump shaft after, lubricate between axle bush and pump shaft through lubricating oil, avoid pump shaft and the dry contact and produce dry-burned. However, the following disadvantages exist in the use process: 1. because the sliding bearing is used as a static part and has higher requirements on concentricity, dimensional accuracy and assembly accuracy relative to a pump shaft rotating part, when the centrifugal pump is used for a period of time and overhauled, the accuracy requirements are difficult to ensure after the centrifugal pump is used again, the high point of the inner wall of the bearing bush is required to be found out through the pump shaft and the investigation during assembly, and then the high point is scraped by a scraper, so that the inner hole of the bearing bush is finally concentric with the pump shaft, and therefore, the centrifugal pump has high maintenance cost, low working efficiency, high processing difficulty and inconvenient maintenance.
Through searching, CN208793305 discloses an utility model patent of an oil slinger structure which can enable oil to smoothly pass through a shaft, a sliding bearing with the structure, namely a bearing bush, is of a half-structure, and the structure has the same substantial defects of the whole bearing bush, and also has the following two defects: 1. because the oil slinging damage is limited by the limiting channel in the inner cavity of the bearing bush, when the pump shaft rotates at a high speed, the oil slinging damage is easily limited by the limiting channel of the bearing bush, so that the rotation is inflexible or can not be rotated, and further the oil slinging girdle is not oiled, and the pump shaft and the bearing bush are burnt out due to dry grinding;
2. Because the gap between the bearing bush and the pump shaft is very small, little lubricating oil is brought into the gap between the pump shaft and the bearing bush through the oil slinger, the heat dissipation is slow, the temperature of the pump shaft is too high during operation, and the pump shaft is deformed to generate vibration, high noise and short service life.
Disclosure of Invention
The invention aims to solve the defects of the prior art, and provides the horizontal centrifugal pump bearing lubrication supercharging device with the reinforced bearing bush, which has the advantages of novel structure, convenience in processing, small deformation of a pump shaft, stability in operation, no vibration and noise, long service life, low maintenance cost and high working efficiency.
The technical scheme adopted for solving the technical problems is as follows:
The bearing lubrication supercharging device of the horizontal centrifugal pump comprises a bearing box body, a bearing box cover, a roller bearing, a bearing bush, a sliding bearing oil slinger, a lock nut and a bearing anti-rotation sleeve, and is characterized by further comprising an oil slinger constraint sleeve and a fixed ring, wherein the bearing box body is internally provided with the oil slinger constraint sleeve, the axle center of the oil slinger constraint sleeve is concentric with the axle center of a pump shaft and is positioned above the axle center, the outer end of the oil slinger constraint sleeve is fixedly connected with the bearing box body, one end of an inner hole of the oil slinger constraint sleeve is fixedly connected with the periphery of the fixed ring, two side walls of the other end face are respectively provided with an oil slinger jack, the oil slinger jack is axially extended,
The bearing bush is sleeved on the pump shaft, the inner lower wall of the bearing bush is contacted with the lower wall of the pump shaft, a top gap is formed between the upper wall and the pump shaft, a side gap is formed between the two side walls and the pump shaft, so that the pump shaft is prevented from being contacted with the bearing bush in a large area in the high-speed rotation process to generate heat, a fixing flange is fixedly arranged on the periphery of the bearing bush, an oil slinger movable space is formed between the upper wall of the bearing bush and the oil slinger constraint sleeve, a semi-annular through groove is formed in the middle of the upper half wall of the bearing bush, the semi-annular through groove is arranged along the circumferential direction, one end periphery of the bearing bush is spliced with the fixing ring, and the fixing flange is fixedly connected with the left end face of the fixing ring through a fixing bolt,
The oil slinger passes through oil slinger movable jacks on two sides of the oil slinger constraint sleeve, the upper part of the oil slinger passes through the semi-annular through grooves of the bearing bush and falls on the pump shaft through dead weight, the lower part of the oil slinger constraint sleeve is contacted with lubricating oil in the bearing box body, when the oil slinger is driven by the pump shaft to rotate, the upper part of the oil slinger can movably rotate in the oil slinger movable space, lubricating oil is brought into the bearing bush in the oil slinger constraint sleeve through the swinging of the oil slinger, and the pump shaft and the bearing bush are not concentric, and the clearance at the lower part of the oil slinger is gradually reduced, and the upper part of the oil slinger is provided with a top clearance, so that the lubricating oil is extruded to generate rigidity to lift the pump shaft, thus an oil film is formed between the pump shaft and the bearing bush, heat between the pump shaft and the bearing bush is brought out along with the clearance at the side surface and the top clearance, so that the oil supplementing amount of the bearing bush is greatly higher than that of other structures, the pump shaft is small in deformation, stable in operation, long service life, low maintenance cost and high working efficiency.
According to the invention, one side wall of the bearing bush is provided with the oil inlet, the other side wall of the bearing bush is provided with the oil outlet, and the oil inlet and the oil outlet correspond to the side gaps respectively, so that when the oil slinger is driven to rotate by the pump shaft, the upper part of the oil slinger can movably rotate in the movable space of the oil slinger, lubricating oil is driven by the swinging of the oil slinger, the lubricating oil is brought into the bearing bush in the oil slinger constraint sleeve through the oil inlet and the semi-annular through groove at the upper part of the oil slinger, and the oil film brings heat between the pump shaft and the bearing bush out and discharges the heat along with the oil outlet, so that the effect of rapidly replacing the heat in the bearing bush is achieved.
According to the invention, oil grooves are arranged at intervals on the circumference of the inner wall of the bearing bush, and the oil grooves are axially arranged. So as to be beneficial to more fully storing oil for the bearing bush.
According to the invention, the two ends of the inner wall of the bearing bush are respectively provided with the oil baffle walls, the inner diameter of the oil baffle walls is smaller than that of the bearing bush, the bearing bush is contacted with the pump shaft through the oil baffle walls, the inner wall of the oil baffle wall is axially provided with the oil outlet groove, the oil outlet groove is communicated with the oil groove, and the width of the oil outlet groove is smaller than that of the oil groove, so that the pressure of oil in the bearing bush can be maintained through the oil baffle walls.
The oil outlets are respectively arranged on the upper wall and the lower wall of the oil slinger restraining sleeve so as to facilitate the oil slinger to be thrown out of the oil which falls into the upper wall of the oil slinger restraining sleeve to flow into the bearing bush through the oil outlet of the upper wall, and the oil flowing out of the bearing bush flows into the bearing box through the oil outlet of the lower wall.
The left end of the oil slinger restraining sleeve is abutted against the outer ring of the roller bearing, so that lubricating oil flowing out of the inner wall of the oil slinger restraining sleeve along the axial direction flows into the roller bearing through the outer ring of the roller bearing, and the roller bearing is cooled and lubricated.
The invention can also be sleeved with the roller bearing oil slinger, the lower part of the roller bearing oil slinger is contacted with the lubricating oil, and the outer wall of the lock nut is gradually transited from the large diameters at two ends to the small diameter in the middle, so that the roller bearing oil slinger is favorable for being restrained to always correspond to the small diameter in the middle of the lock nut, and the lubricating oil is thrown into a roller bearing cavity through the roller bearing oil slinger to lubricate the roller bearing.
Due to the adoption of the structure, the pump shaft structure has the advantages of novel structure, convenience in processing, small pump shaft deformation, stability in operation, no vibration and noise, long service life, low maintenance cost, high working efficiency and the like.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the bearing housing.
Fig. 3 is a cross-sectional view of C-C of fig. 2.
Fig. 4 is a schematic structural view of the bearing shell.
Fig. 5 is a schematic view of the bearing shell and pump shaft in a static state.
Reference numerals: the oil slinger comprises a bearing box body 1, a bearing box cover 2, a roller bearing 3, a bearing bush 4, a sliding bearing oil slinger 5, a lock nut 6, a bearing anti-rotation sleeve 7, an oil slinger constraint sleeve 8, a fixed ring 9, a fixed ring 10, an oil slinger jack 11, a fixed flange 12, an oil slinger movable space 13, a semi-annular through groove 14, an oil inlet hole 15, an oil outlet hole 16, an oil groove 17, an oil retaining wall 18 and an oil outlet 19, an oil outlet 20, a roller bearing oil slinger 21, lubricating oil 22 and a fixed bolt 23 which are axially arranged on the inner wall.
Detailed Description
The invention is described below with reference to the drawings and examples.
As shown in the drawing, the bearing lubrication supercharging device of the horizontal centrifugal pump comprises a bearing box body 1, a bearing box cover 2, a roller bearing 3, a bearing bush 4, a sliding bearing oil slinger 5, a lock nut 6, a bearing anti-rotation sleeve 7 and a pump shaft 8, wherein the connecting structures of the bearing box body 1, the bearing box cover 2, the roller bearing 3, the lock nut 6, the bearing anti-rotation sleeve 7 and the pump shaft 8 are the same as those of the prior art, and the device is not repeated, and is characterized by further comprising an oil slinger constraint sleeve 9 and a fixed ring 10, wherein the bearing box body 1 is internally provided with the oil slinger constraint sleeve 9, the axis of the oil slinger constraint sleeve 9 is concentric with the axis of the pump shaft 8 and is positioned above the axis of the pump shaft 8, the outer end of the oil slinger constraint sleeve 9 is fixedly connected with the bearing box body 1, one end of an inner hole of the oil slinger constraint sleeve 9 is fixedly connected with the periphery of the fixed ring 10, two side walls of the other end face are respectively provided with an oil slinger jack 11, the oil slinger jack 11 extends along the axial direction,
The bearing bush 4 is sleeved on the pump shaft 8, the inner lower wall of the bearing bush 4 is contacted with the lower wall of the pump shaft 8, a top gap b1 is formed between the upper wall and the pump shaft 8, a side gap b2 is formed between the two side walls and the pump shaft, so that the pump shaft 8 is prevented from contacting with the bearing bush 4 in a large area to generate heat in the high-speed rotation process, a fixed flange 12 is fixedly arranged at the periphery of the bearing bush 4, an oil slinger movable space 13 is formed between the upper wall of the bearing bush 4 and the oil slinger constraint sleeve 9, a semi-annular through groove 14 is arranged in the middle of the upper half wall of the bearing bush 4, the semi-annular through groove 14 is arranged along the circumferential direction, the periphery of one end of the bearing bush 4 is spliced with the fixed ring 10, the fixed flange 16 is fixedly connected with the left end face of the fixed ring 10 through a fixed bolt 23,
The sliding bearing oil slinger 5 passes through oil slinger movable jacks 11 on two sides of the oil slinger constraint sleeve 9, the upper part is placed in a semi-annular through groove 14 of the bearing bush and falls on the pump shaft 8 by self weight, the lower part is positioned at the lower part of the oil slinger constraint sleeve 9 and is contacted with lubricating oil in the bearing box 1, so that when the sliding bearing oil slinger 5 rotates under the drive of the pump shaft 8, the upper part can movably rotate in the oil slinger movable space 13, lubricating oil is driven by the swing of the sliding bearing oil slinger 5, the lubricating oil is brought into the bearing bush 4 in the oil slinger constraint sleeve 9 through the semi-annular through groove 14 of the upper part, and as the pump shaft 8 and the bearing bush 4 are not concentric, and the clearance of the lower part is gradually reduced, the lubricating oil is extruded to generate a rigid oil film to lift the pump shaft 8, thus an oil film is formed between the pump shaft 8 and the bearing bush 4, and the heat between the pump shaft 8 and the bearing bush 4 is taken out along with the side clearance b2 and the top clearance b1, so that the oil supplementing quantity of the bearing bush 4 in the invention is greatly higher than that of other structures, the deformation is small, the operation is stable, the service life is long, the service life is low, and the working cost is high.
According to the invention, an oil inlet hole 15 is formed in one side wall of the bearing bush 4, an oil outlet hole 16 is formed in the other side wall, the oil inlet hole 15 and the oil outlet hole 16 correspond to the side gaps b2 respectively, when the sliding bearing oil slinger 5 is driven to rotate by the pump shaft 8, the upper part of the sliding bearing oil slinger can movably rotate in the oil slinger movable space 13, lubricating oil is thrown by the sliding bearing oil slinger 5, the lubricating oil is brought into the bearing bush in the oil slinger constraint sleeve 9 through the oil inlet hole 15 and the semi-annular through groove 14 at the upper part, and the oil film brings heat between the pump shaft 8 and the bearing bush 4 out and discharges the heat along with the oil outlet hole, so that the effect of rapidly replacing the heat in the bearing bush is achieved.
According to the invention, oil grooves 17 are arranged at intervals on the circumference of the inner wall of the bearing bush 4, and the oil grooves 17 are axially arranged. So as to facilitate more sufficient oil storage for the bearing bush 4.
According to the invention, the two ends of the inner wall of the bearing bush can be respectively provided with the oil baffle walls 18, the inner diameter of the oil baffle walls is smaller than the inner diameter of the bearing bush, the bearing bush is contacted with the pump shaft 8 through the oil baffle walls 18, the inner wall of the oil baffle walls 18 is axially provided with the oil outlet grooves 19, the oil outlet grooves 19 are communicated with the oil grooves 17, and the width of the oil outlet grooves is smaller than that of the oil grooves 17, so that the pressure of oil in the bearing bush can be maintained through the oil baffle walls.
The oil outlets 20 are respectively arranged on the upper wall and the lower wall of the oil slinger restraining sleeve 9, so that oil which is thrown out of the sliding bearing oil slinger 5 and falls into the upper wall of the oil slinger restraining sleeve 9 flows into the bearing bush 4 through the oil outlet 20 of the upper wall, and oil which flows out of the bearing bush 4 flows into the bearing box body 1 through the oil outlet 20 of the lower wall.
The left end of the oil slinger restraining sleeve 9 is abutted against the outer ring of the roller bearing 3, so that lubricating oil flowing out of the inner wall of the oil slinger restraining sleeve 9 along the axial direction flows into the roller bearing 3 through the outer ring of the roller bearing 3, and the roller bearing 3 is cooled and lubricated.
The invention can also be sleeved with the roller bearing oil slinger 21 on the lock nut 6, the lower part of the roller bearing oil slinger 21 is contacted with lubricating oil 22, and the outer wall of the lock nut 6 is gradually transited from the large diameters at two ends to the small diameter in the middle so as to be favorable for restraining the roller bearing oil slinger to always correspond to the small diameter in the middle of the lock nut, and the lubricating oil is thrown into a roller bearing cavity through the roller bearing oil slinger to lubricate the roller bearing.
When the centrifugal pump works, the pump shaft 8 is driven by a driving part to rotate so as to drive the impeller to pump liquid, in the high-speed rotation process of the pump shaft 8, the roller bearing oil slinger 21 sleeved on the lock nut 6 throws lubricating oil into the roller bearing 3 to cool and lubricate the roller bearing 3, the sliding bearing oil slinger 5 on the bearing bush 4 is driven by the pump shaft 8 to centrifugally rotate like a hula hoop, the upper part of the sliding bearing oil slinger 5 can movably rotate in an oil slinger movable space 13, when the sliding bearing oil slinger 5 is contacted with the pump shaft 8, lubricating oil carried by the sliding bearing oil slinger 5 directly falls on the pump shaft 8 through the semi-annular through groove 14 at the upper part, and as the pump shaft 8 and the bearing bush 4 are not concentric, the clearance at the lower part of the sliding bearing is gradually reduced, so that the lubricating oil is extruded to generate a rigid oil film to lift the pump shaft 8, and as the heat between the pump shaft 8 and the bearing bush 4 is continuously carried out through the side clearance and the oil slinger through the side clearance and the oil outlet hole, when the sliding bearing oil slinger 5 is lifted up to the sliding bearing oil slinger 5 is contacted with the bearing 9 and the periphery of the bearing 9, and the lubricating oil is restrained by the bearing 9 and flows down along the inner wall of the bearing sleeve 9 when the sliding bearing oil slinger 5 is contacted with the upper part and the oil slinger 9.
In addition, in the high-speed rotation process of the pump shaft 8, the oil groove 17 on the inner wall of the bearing bush 4 is fully filled with lubricating oil, so that the lubrication between the pump shaft 8 and the bearing bush 4 is fully ensured, and the pressure maintaining effect is further achieved through the blocking of the oil blocking walls 18 at the two ends of the bearing bush 4 and the slow oil outlet of the oil outlet groove 19, so that the oil supplementing amount of the bearing bush 4 is greatly higher than that of other structures, and the deformation amount of the pump shaft is remarkably reduced.
Due to the adoption of the structure, the pump shaft structure has the advantages of novel structure, convenience in processing, small pump shaft deformation, stability in operation, no vibration and noise, long service life, low maintenance cost, high working efficiency and the like.
Claims (7)
1. The bearing lubrication supercharging device of the horizontal centrifugal pump comprises a bearing box body, a bearing box cover, a roller bearing, a bearing bush, a sliding bearing oil slinger, a lock nut and a bearing anti-rotation sleeve, and is characterized by further comprising an oil slinger constraint sleeve and a fixed ring, wherein the bearing box body is internally provided with the oil slinger constraint sleeve, the axle center of the oil slinger constraint sleeve is concentric with the axle center of a pump shaft and is positioned above the axle center, the outer end of the oil slinger constraint sleeve is fixedly connected with the bearing box body, one end of an inner hole of the oil slinger constraint sleeve is fixedly connected with the periphery of the fixed ring, two side walls of the other end face are respectively provided with an oil slinger jack, the oil slinger jack is axially extended,
The bearing bush is sleeved on the pump shaft, the inner lower wall of the bearing bush is contacted with the lower wall of the pump shaft, a top gap is formed between the upper wall and the pump shaft, a side gap is formed between the two side walls and the pump shaft, so that the pump shaft is prevented from being contacted with the bearing bush in a large area in the high-speed rotation process to generate heat, a fixing flange is fixedly arranged on the periphery of the bearing bush, an oil slinger movable space is formed between the upper wall of the bearing bush and the oil slinger constraint sleeve, a semi-annular through groove is formed in the middle of the upper half wall of the bearing bush, the semi-annular through groove is arranged along the circumferential direction, one end periphery of the bearing bush is spliced with the fixing ring, and the fixing flange is fixedly connected with the left end face of the fixing ring through a fixing bolt,
The oil slinger passes through oil slinger movable jacks on two sides of the oil slinger constraint sleeve, the upper part of the oil slinger is placed in a semi-annular through groove of the bearing bush and falls on the pump shaft through dead weight, and the lower part of the oil slinger constraint sleeve is positioned at the lower part of the oil slinger constraint sleeve and is contacted with lubricating oil in the bearing box body.
2. The bearing lubrication and pressurization device for the horizontal centrifugal pump according to claim 1, wherein one side wall of the bearing bush is provided with an oil inlet, the other side wall of the bearing bush is provided with an oil outlet, and the oil inlet and the oil outlet respectively correspond to the side gaps.
3. The bearing lubrication and pressurization device of the horizontal centrifugal pump according to claim 1 or 2, wherein oil grooves are formed in the circumference of the inner wall of the bearing bush at intervals, and the oil grooves are axially arranged.
4. The horizontal centrifugal pump bearing lubrication supercharging device according to claim 3, wherein oil retaining walls are respectively arranged at two ends of the inner wall of the bearing bush, the inner diameter of the oil retaining walls is smaller than that of the bearing bush, the bearing bush is contacted with the pump shaft through the oil retaining walls, an oil outlet groove is axially formed in the inner wall of the oil retaining walls, the oil outlet groove is communicated with the oil groove, and the width of the oil outlet groove is smaller than that of the oil groove.
5. The bearing lubrication and pressurization device for the horizontal centrifugal pump according to claim 1 or 4, wherein oil outlets are respectively arranged on the upper wall and the lower wall of the oil slinger constraint sleeve.
6. The horizontal centrifugal pump bearing lubrication supercharging device of claim 5, wherein the left end of the oil slinger restraining sleeve is abutted against the outer ring of the roller bearing.
7. The horizontal centrifugal pump bearing lubrication supercharging device according to claim 1,2, 4 or 6, wherein the lock nut is sleeved with a roller bearing oil slinger, the lower part of the roller bearing oil slinger is in contact with lubricating oil, and the outer wall of the lock nut is gradually transited from the large diameter at two ends to the small diameter in the middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911094004.XA CN110821876B (en) | 2019-11-11 | 2019-11-11 | Bearing lubrication supercharging device of horizontal centrifugal pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911094004.XA CN110821876B (en) | 2019-11-11 | 2019-11-11 | Bearing lubrication supercharging device of horizontal centrifugal pump |
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| Publication Number | Publication Date |
|---|---|
| CN110821876A CN110821876A (en) | 2020-02-21 |
| CN110821876B true CN110821876B (en) | 2024-10-25 |
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| CN201911094004.XA Active CN110821876B (en) | 2019-11-11 | 2019-11-11 | Bearing lubrication supercharging device of horizontal centrifugal pump |
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| CN114278670B (en) * | 2021-12-25 | 2023-06-16 | 上海水泵制造有限公司 | Half-split sliding bearing of boiler feed pump |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211059056U (en) * | 2019-11-11 | 2020-07-21 | 山东双轮股份有限公司 | Bearing lubricating and pressurizing device of horizontal centrifugal pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI315382B (en) * | 2006-12-26 | 2009-10-01 | Ind Tech Res Inst | The rotor mechanism of the centrifugal compressor |
| DE102013004682A1 (en) * | 2013-03-19 | 2015-01-08 | Katharina Diener | High and low pressure Pitot tube centrifugal pump hermetically sealed with a special universal permanent magnet clutch from the Pitot tube. Type Rotary Case Jet pump (also called brandel Pitot tube pump) Short name: ITTRC jet pump |
| CN103615406A (en) * | 2013-12-10 | 2014-03-05 | 襄阳五二五泵业有限公司 | Oil slinger lubricated bearing box used for double suction pump |
| CN203856728U (en) * | 2014-05-27 | 2014-10-01 | 大连利欧华能泵业有限公司 | Novel horizontal multistage centrifugal pump with rolling bearings |
| CN205744573U (en) * | 2016-07-01 | 2016-11-30 | 西安泵阀总厂有限公司 | A kind of Double-support-type centrifugal pump shaft bearing lubricating device |
| CN208793305U (en) * | 2018-10-18 | 2019-04-26 | 重庆水泵厂有限责任公司 | It is a kind of to make the smooth disc structure by axis of oil |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211059056U (en) * | 2019-11-11 | 2020-07-21 | 山东双轮股份有限公司 | Bearing lubricating and pressurizing device of horizontal centrifugal pump |
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