CN209990681U - Pitot tube pump bearing lubricating system - Google Patents
Pitot tube pump bearing lubricating system Download PDFInfo
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- CN209990681U CN209990681U CN201920313681.5U CN201920313681U CN209990681U CN 209990681 U CN209990681 U CN 209990681U CN 201920313681 U CN201920313681 U CN 201920313681U CN 209990681 U CN209990681 U CN 209990681U
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Abstract
The utility model relates to a pitot tube pump bearing lubricating system, including the pump shaft, the bracket body, the bracket lid, front bearing and rear bearing, constitute the bearing oil tank behind bracket body and the bracket lid encapsulation, the pump shaft is connected with the both ends of bracket body through front bearing and rear bearing respectively, the epaxial fixedly connected with impeller of pump, be provided with the wheel casing that is used for covering the impeller in the bracket body, leave the clearance between wheel casing and the pump shaft, the oil-out rather than the inner chamber is linked together is seted up to one side that the pump shaft was kept away from to the wheel casing, set up the oil inlet that is linked together with the bearing oil tank on the bracket body, the intercommunication has defeated oil pipeline between oil-out and the oil inlet, defeated oil pipeline is located the. The pump shaft drives the impeller to rotate, so that lubricating oil in the wheel cover is pressurized, the lubricating oil circulates between the oil conveying pipeline and the bearing oil tank, the front bearing and the rear bearing are lubricated by the pressurized lubricating oil respectively, the lubricating effect is better, and the lubricating device has the advantages of improving the lubricating reliability and convenience of the bearings.
Description
Technical Field
The utility model belongs to the technical field of the radiating technical field of mechanical lubrication and specifically relates to a pitot tube pump bearing lubricating system is related to.
Background
The pitot tube pump comprises a pump body, a flow guide assembly, a mechanical seal assembly, a pitot tube, a shaft, an impeller, a rotary shell, a bearing box body and other main parts, wherein the shaft, the rotary shell and the impeller form a rotary part which is connected with the bearing box through a bearing. During operation, the shaft drives the rotating shell to rotate, the pitot tube is still in the rotating shell cavity, the rotating shell rotates to drive liquid in the rotating shell cavity to rotate, and the liquid enters the pitot tube and flows out of the pump body through the liquid outlet channel of the flow guide assembly. Lubricating oil is a liquid lubricant used in various rotating machines to reduce friction and protect the machine and the work piece. The lubricating oil is mainly used for reducing friction between the bearing and the pump body, and dry friction is generated if some friction parts are not properly lubricated during operation of the bearing, so that the friction parts of the bearing must be well lubricated. After the lubricating oil flows to the friction part, the lubricating oil can be adhered to the friction surface to form a layer of oil film, so that the resistance between the bearing and the pump body is reduced, and the strength and the toughness of the oil film are the key for playing the lubricating role.
However, when the bearings of the prior pitot tube pump are lubricated, an oil slinger or an external forced lubrication system is generally adopted to enable lubricating oil to flow. When the oil slinger is used, lubricating oil cannot be cooled well under the condition that a pitot tube pump conveys a high-temperature medium or the pitot tube pump is in a heavy load state, and the reliability is poor; when an external forced lubrication system is used, the flow of the lubricating oil needs an external power source to pressurize the lubricating oil, and the structure is complex.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pitot tube pump bearing lubricating system has the advantage that improves bearing lubrication reliability and convenience.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a pitot tube pump bearing lubricating system, includes pump shaft, bracket body, bracket cover, front bearing and rear bearing, the bracket body with constitute the bearing oil tank behind the bracket cover encapsulation, the pump shaft passes through respectively the front bearing with the rear bearing with the both ends of bracket body are connected, the pump shaft is located the fixedly connected with impeller in the bearing oil tank, the internal being provided with of bracket is used for with the wheel casing that the impeller covered, the wheel casing with leave the clearance between the pump shaft, the oil-out that is linked together rather than the inner chamber is seted up to one side that the pump shaft was kept away from to the wheel casing, set up the oil inlet that is linked together with the bearing oil tank on the bracket body, the oil-out with the intercommunication has defeated oil pipe way between the oil inlet, defeated oil pipe way is located the bracket body and is.
By adopting the technical scheme, when the pump shaft drives the rotating shell of the pitot tube pump to rotate, the impeller is driven to rotate together, the rotation of the impeller pressurizes lubricating oil in the wheel cover, so that the lubricating oil circulates between an oil conveying pipeline and a bearing oil tank, and the front bearing and the rear bearing are respectively lubricated by the pressurized lubricating oil, so that the lubricating effect is better, and the lubricating oil has the advantages of improving the lubricating reliability and convenience of the bearings; when the temperature of the lubricating oil in the bearing oil tank is too high, the lubricating oil conveyed by the oil conveying pipeline is cooled by the cooler, so that the pump shaft, the front bearing and the rear bearing are cooled, and the service lives of the front bearing and the rear bearing are prolonged.
The utility model discloses further set up to: the number of the oil inlets is two, and the two oil inlets are respectively located on the axial outer sides of the front bearing and the rear bearing.
Through adopting above-mentioned technical scheme, the lubricating oil after the cooling will contact front bearing and rear bearing earlier, and the cooling effect to front bearing and rear bearing is better like this.
The utility model discloses further set up to: the impeller comprises a bottom plate with a shaft hole in the center, a plurality of blades are arranged on one side of the bottom plate, the blades are arranged around the center of the bottom plate in an arc shape, and the bending direction of the blades is the same as the rotating direction of the pump shaft.
By adopting the technical scheme, the blades are fixed on one side of the bottom plate, and compared with a fully-closed impeller, the impeller has the advantage of difficulty in accumulating dirt; meanwhile, in the using process, lubricating liquid enters from the middle of the impeller and is thrown out from the space between adjacent blades through the rotation of the impeller, so that the lubricating oil in the wheel cover is better thrown out of the pitot tube pump from the oil outlet, and the circulation of the lubricating oil in the pitot tube pump is facilitated.
The utility model discloses further set up to: the height of the blade from one end close to the circle center of the blade to the other end is gradually reduced, and the thickness of the blade from one end close to the circle center of the blade to the other end is gradually increased.
By adopting the technical scheme, the oil-saving device can play a good role in blocking, reduce the loss of lubricating oil to influence the transmission of mechanical energy and enable the lubricating oil to be thrown out more stably; when lubricating oil is about to be thrown away, lubricating oil velocity of flow piece and pressure are big, so with blade thickness from inside to outside increase gradually, guarantee the outside structural strength of blade, because the pressure is big and the condition that the blade warp and damage appears in velocity of flow piece when reducing lubricating oil and throwing away, even if also can keep good life under high-pressure lubricating oil.
The utility model discloses further set up to: the upper surface of the blade is an inclined plane, and the inclined plane of the blade gradually decreases from one end close to the circle center of the blade to the inclined angle of the other end of the blade.
Through adopting above-mentioned technical scheme, can have stronger shearing force when the impeller rotates, the resistance is littleer when also making the impeller rotate simultaneously to stability when improving the impeller rotation.
The utility model discloses further set up to: the wheel cover is located the oil-out department is provided with the filter screen.
Through adopting above-mentioned technical scheme, the filter screen can come to the lubricating oil that gets into in the defeated oil pipe way, reduces the impurity in the lubricating oil and gets into and cause the condition of jam in defeated oil pipe way and the cooler.
The utility model discloses further set up to: the top of the bracket body is provided with an oil supplementing pipe communicated with a bearing oil tank, and the oil supplementing pipe is in threaded connection with an oil cover.
Through adopting above-mentioned technical scheme, pitot tube pump will cause the loss of lubricating oil at the in-process of work, and the oil pipe can supply new lubricating oil to the bearing oil tank in, the simple operation.
To sum up, the utility model discloses a beneficial technological effect does: when the pump shaft drives the rotating shell of the pitot tube pump to rotate, the impeller is driven to rotate together, the rotation of the impeller pressurizes lubricating oil in the wheel cover, so that the lubricating oil circulates between an oil conveying pipeline and a bearing oil tank, and the front bearing and the rear bearing are respectively lubricated by the pressurized lubricating oil, so that the lubricating effect is better, and the lubricating oil pump has the advantages of improving the lubricating reliability and convenience of the bearings; when the temperature of the lubricating oil in the bearing oil tank is too high, the lubricating oil conveyed by the oil conveying pipeline is cooled by the cooler, so that the pump shaft, the front bearing and the rear bearing are cooled, and the service lives of the front bearing and the rear bearing are prolonged. One side of the bottom plate is fixed with the blades, and compared with a fully-closed impeller, the impeller has the advantage of being difficult to accumulate dirt; meanwhile, in the using process, lubricating liquid enters from the middle of the impeller and is thrown out from the space between adjacent blades through the rotation of the impeller, so that the lubricating oil in the wheel cover is better thrown out of the pitot tube pump from the oil outlet, and the circulation of the lubricating oil in the pitot tube pump is facilitated.
Drawings
FIG. 1 is a cross-sectional view of the structure of an embodiment of the present invention;
fig. 2 is a partial sectional view of a pump shaft and an impeller in an embodiment of the present invention.
In the figure, 1, pump shaft; 2. a bracket body; 3. a bracket cover; 4. a front bearing; 5. a rear bearing; 6. an impeller; 61. a base plate; 62. a blade; 7. a wheel cover; 8. an oil outlet; 9. an oil inlet; 10. an oil pipeline; 11. a cooler; 12. a filter screen; 13. supplementing an oil pipe; 14. and (7) an oil cover.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A bearing lubricating system of a pitot tube pump is disclosed, as shown in figures 1 and 2, and comprises a pump shaft 1, a bracket body 2, a bracket cover 3, a front bearing 4 and a rear bearing 5, wherein the bracket body 2 and the bracket cover 3 are packaged to form a bearing oil tank, the pump shaft 1 is respectively connected with two ends of the bracket body 2 through the front bearing 4 and the rear bearing 5, the pump shaft 1 is positioned in the bearing oil tank and fixedly connected with an impeller 6, a wheel cover 7 used for covering the impeller 6 is fixed in the bracket body 2, a gap is reserved between the wheel cover 7 and the pump shaft 1, one side of the wheel cover 7, which is far away from the pump shaft 1, is provided with an oil outlet 8 communicated with an inner cavity of the wheel cover, the bracket body 2 is provided with an oil inlet 9 communicated with the bearing oil tank, an oil conveying pipeline 10 is communicated between the oil outlet 8 and the oil inlet 9, and the oil. In this embodiment, the impeller 6 is a vortex pump impeller, and when the lubricating oil in the wheel cover 7 is pressurized, the vortex pump impeller is not completely immersed in the lubricating oil.
When the pump shaft 1 drives the rotating shell of the pitot tube pump to rotate, the impeller 6 is driven to rotate together, the rotation of the impeller 6 pressurizes lubricating oil in the wheel cover 7, so that the lubricating oil circulates between the oil conveying pipeline 10 and the bearing oil tank, the front bearing 4 and the rear bearing 5 are respectively lubricated by the pressurized lubricating oil, the lubricating effect is better, and the advantages of improving the lubricating reliability and convenience of the bearings are achieved; when the temperature of the lubricating oil in the bearing oil tank is too high, the lubricating oil conveyed by the oil conveying pipeline 10 is cooled by the cooler 11, and then the pump shaft 1, the front bearing 4 and the rear bearing 5 are cooled, so that the service lives of the front bearing 4 and the rear bearing 5 are prolonged.
Two oil inlets 9 are arranged, and the two oil inlets 9 are respectively positioned at the axial outer sides of the front bearing 4 and the rear bearing 5; the cooled lubricating oil is firstly contacted with the front bearing 4 and the rear bearing 5, so that the cooling effect on the front bearing 4 and the rear bearing 5 is better. A filter screen 12 is arranged at the oil outlet 8 of the wheel cover 7, the filter screen 12 can be used for filtering lubricating oil entering the oil conveying pipeline 10, and the situation that impurities in the lubricating oil enter the oil conveying pipeline 10 and the cooler 11 to cause blockage is reduced. An oil supplementing pipe 13 communicated with a bearing oil tank is arranged at the top of the bracket body 2, and an oil cover 14 is connected to the oil supplementing pipe 13 in a threaded manner; the pitot tube pump will cause the loss of lubricating oil at the in-process of work, and oil pipe 13 can supply new lubricating oil to the bearing oil tank in, and the simple operation.
The impeller 6 comprises a bottom plate 61 with a shaft hole in the center, a plurality of blades 62 are integrally formed on one side of the bottom plate 61, the plurality of blades 62 are uniformly distributed in an annular mode, the blades 62 are arranged around the center of the bottom plate 61 in an arc mode, and the bending direction of the blades 62 is the same as the rotating direction of the pump shaft 1; one side of the bottom plate 61 is fixed with a blade 62, which has the advantage of being less prone to accumulating dirt compared with the totally enclosed impeller 6; meanwhile, in the using process, lubricating liquid enters from the middle of the impeller 6 and is thrown out from the space between the adjacent blades 62 through the rotation of the impeller 6, so that the lubricating oil in the wheel cover 7 is better thrown out of the pitot tube pump from the oil outlet 8, and the circulation of the lubricating oil in the pitot tube pump is facilitated.
The height of the blade 62 decreases gradually from one end near the center thereof to the other end, and the thickness of the blade 62 increases gradually from one end near the center thereof to the other end. The lubricating oil can play a good role in blocking, the lubricating oil loss is reduced, the transmission of mechanical energy is influenced, and the lubricating oil is more stably thrown out; when lubricating oil is about to be thrown out, lubricating oil velocity of flow piece and pressure are big, so with blade 62 thickness from inside to outside increase gradually, guarantee the outside structural strength of blade 62, reduce lubricating oil and appear the condition that blade 62 warp and damage when throwing out because pressure is big and velocity of flow piece, even also can keep good life under high-pressure lubricating oil. The upper surface of the blade 62 is an inclined surface, and the inclined angle of the inclined surface of the blade 62 gradually decreases from one end close to the center of the circle to the other end; impeller 6 can have stronger shearing force when rotating, also makes impeller 6 resistance when rotating littleer simultaneously to stability when improving impeller 6 and rotating.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides a pitot tube pump bearing lubricating system, includes pump shaft (1), bracket body (2), bracket lid (3), front bearing (4) and rear bearing (5), constitute the bearing oil tank after bracket body (2) and bracket lid (3) encapsulation, pump shaft (1) respectively through front bearing (4) with rear bearing (5) with the both ends of bracket body (2) are connected, its characterized in that: the utility model discloses a bearing oil pump, including bearing oil tank, pump shaft (1), bracket body (2), wheel cover (7) and pump shaft (1) are equipped with in the bearing oil tank fixedly connected with impeller (6), be used for with be provided with in bracket body (2) wheel cover (7) that impeller (6) cover, wheel cover (7) with leave the clearance between pump shaft (1), oil-out (8) rather than the inner chamber be linked together are seted up to one side that wheel cover (7) were kept away from pump shaft (1), set up oil inlet (9) that are linked together with the bearing oil tank on bracket body (2), oil-out (8) with intercommunication has defeated oil pipeline (10) between oil inlet (9), defeated oil pipeline (10).
2. The pitot tube pump bearing lubrication system of claim 1, wherein: the number of the oil inlets (9) is two, and the two oil inlets (9) are respectively positioned on the axial outer sides of the front bearing (4) and the rear bearing (5).
3. The pitot tube pump bearing lubrication system of claim 1, wherein: the impeller (6) comprises a bottom plate (61) with a shaft hole in the center, a plurality of blades (62) are arranged on one side of the bottom plate (61), the blades (62) are arranged around the circle center of the bottom plate (61) in an arc shape, and the bending direction of the blades (62) is the same as the rotating direction of the pump shaft (1).
4. A pitot tube pump bearing lubrication system as claimed in claim 3, wherein: the height of the blade (62) is gradually reduced from one end close to the circle center of the blade to the other end, and the thickness of the blade (62) is gradually increased from one end close to the circle center of the blade to the other end.
5. The pitot tube pump bearing lubrication system of claim 4, wherein: the upper surface of the blade (62) is an inclined surface, and the inclined angle of the inclined surface of the blade (62) from one end close to the circle center to the other end is gradually reduced.
6. The pitot tube pump bearing lubrication system of claim 1, wherein: and a filter screen (12) is arranged at the oil outlet (8) of the wheel cover (7).
7. The pitot tube pump bearing lubrication system of claim 1, wherein: an oil supplementing pipe (13) communicated with a bearing oil tank is arranged at the top of the bracket body (2), and an oil cover (14) is connected to the oil supplementing pipe (13) in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920313681.5U CN209990681U (en) | 2019-03-13 | 2019-03-13 | Pitot tube pump bearing lubricating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920313681.5U CN209990681U (en) | 2019-03-13 | 2019-03-13 | Pitot tube pump bearing lubricating system |
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| Publication Number | Publication Date |
|---|---|
| CN209990681U true CN209990681U (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920313681.5U Active CN209990681U (en) | 2019-03-13 | 2019-03-13 | Pitot tube pump bearing lubricating system |
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| CN (1) | CN209990681U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412184A (en) * | 2020-03-27 | 2020-07-14 | 安徽埃斯克制泵有限公司 | Cavitation-resistant double-suction split pump and working method thereof |
| CN114810658A (en) * | 2022-05-13 | 2022-07-29 | 宋秋葳 | Pressure guarantee device for double-end-face mechanical seal isolation cavity of self-priming pump |
-
2019
- 2019-03-13 CN CN201920313681.5U patent/CN209990681U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412184A (en) * | 2020-03-27 | 2020-07-14 | 安徽埃斯克制泵有限公司 | Cavitation-resistant double-suction split pump and working method thereof |
| CN114810658A (en) * | 2022-05-13 | 2022-07-29 | 宋秋葳 | Pressure guarantee device for double-end-face mechanical seal isolation cavity of self-priming pump |
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