CN207064309U - A kind of centrifugal pump is from prefastening grease lubrication bearing structure - Google Patents
A kind of centrifugal pump is from prefastening grease lubrication bearing structure Download PDFInfo
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- CN207064309U CN207064309U CN201720963826.7U CN201720963826U CN207064309U CN 207064309 U CN207064309 U CN 207064309U CN 201720963826 U CN201720963826 U CN 201720963826U CN 207064309 U CN207064309 U CN 207064309U
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- bearing
- centrifugal pump
- drive end
- grease lubrication
- prefastening
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Abstract
The utility model belongs to centrifugal pump bearing technical field of structures, and in particular to a kind of centrifugal pump is from prefastening grease lubrication bearing structure.A kind of centrifugal pump is from prefastening grease lubrication bearing structure, including drive end bearing part and non-driven-end bearing part, preloading spring is set between the drive end bearing part and non-driven-end bearing part, spring base before described preloading spring front end is set, described preloading spring rear end sets rear spring seat, and drive end bearing part and non-driven-end bearing part set stuffing hole respectively.The beneficial effects of the utility model are：Using new bearing from firmly beforehand meanses grease lubrication structure self-aligning bearing pretightning force, to meet the needs of high inlet pressure operating mode and extend rotating shaft operating rotational speed range, and grease lubrication is used, the permission working speed of centrifugal pump is improved, has widened the performance spectrum application scope of centrifugal pump.
Description
Technical field
The utility model belongs to bearing arrangement technical field, and in particular to a kind of centrifugal pump is from prefastening grease lubricating bearing knot
Structure.
Background technology
Centrifugal pump designs according to centrifugal principle, and the impeller blade of rotation drives water to rotate at a high speed, and water is thrown away,
So as to reach the purpose of conveying.Centrifugal pump product structure pattern, description are with their own characteristics.For bearing, different works
Pretightning force required by condition is different, and the wherein working speed of centrifugal pump is also different to the structural requirement of bearing, conventional centrifugal pump
Bearing arrangement using radially and Designing Thrust Bearing, be not provided with bearing pre-tightening device, it is impossible to meet centrifugal pump run at high speed with
And needs during high inlet pressure operating mode, therefore by improving the bearing arrangement of centrifugal pump, optimize the condition of work of bearing, so as to
Tolerance zone of the centrifugal pump in working speed, inlet pressure etc. is improved, it is great to the application value of expansion centrifugal pump.
The content of the invention
The purpose of this utility model is to provide a kind of novel bearing firmly beforehand meanses for problems of the prior art
Grease lubrication bearing structure of centrifugal pump.
The technical solution of the utility model is：
A kind of centrifugal pump is from prefastening grease lubrication bearing structure, including drive end bearing part and non-driven-end bearing portion
Point, preloading spring is set between the drive end bearing part and non-driven-end bearing part, and described preloading spring front end is set
Preceding spring base is put, described preloading spring rear end sets rear spring seat, drive end bearing part and non-driven-end bearing part point
She Zhi not stuffing hole.
Specifically, described drive end bearing part includes rear bearing block gland and drive end rolling bearing, after described
Bearing block gland is fixedly connected with the bearing seat by screw.
Specifically, described drive end rolling bearing is thrust angular contact bearing, quantity is two, two thrust angular contacts
Bearing spacer is set between bearing.
Specifically, stuffing hole is set on bearing spacer.
Specifically, described non-driven-end bearing part includes anti-drive end rolling bearing and bearing box, anti-drive end axle
Bearing portion point is all arranged in bearing block, and described anti-drive end rolling bearing is annular bearing with rolling contact, and annular bearing with rolling contact is set
In in bearing box.
Specifically, the outer ring of described annular bearing with rolling contact sets wavy spring, set on the outer ring of annular bearing with rolling contact
Stuffing hole.
The beneficial effects of the utility model are：The pretightning force of bearing is adjusted using new bearing pre-tightened mode, to meet
The demand of different operating modes simultaneously extends rotating shaft operating rotational speed range, and uses grease lubrication, improves the permission working speed of centrifugal pump,
The performance spectrum application scope of centrifugal pump is widened.The utility model uses spring pre-tightening, though long-play also without
Adjustment, bearing be in good state all the time, has a novel in structural design, and controllability is by force and the advantages of strong adaptability.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Before 1 rear spring seat, 2 preloading springs, 3 behind spring base, 4 bearing boxs, 5 bearing blocks, 6 wavy springs, 7 bearing spacers, 8
Bearing block gland, the anti-drive end rolling bearing of 9 drive end rolling bearing 10.
Embodiment
It is as shown in Figure 1 a kind of centrifugal pump from prefastening grease lubrication bearing structure schematic diagram, including drive end bearing part
With non-driven-end bearing part, preloading spring 2 is set between the drive end bearing part and non-driven-end bearing part.It is described
Drive end bearing part include rear bearing block gland 8 and drive end rolling bearing 9, described drive end rolling bearing 9 is pushes away
Power angular contact bearing, quantity are two, and bearing spacer 7 is set between two thrust angular contact bearings, sets and adds on bearing spacer 7
Fat hole.Described rear bearing block gland 8 is fixedly connected by screw with bearing block 5.
Described non-driven-end bearing part includes anti-drive end rolling bearing 10 and bearing box 4, non-driven-end bearing portion
Divide and be all arranged in bearing block 5, described anti-drive end rolling bearing 10 is annular bearing with rolling contact, and annular bearing with rolling contact is arranged at
In bearing box 4, the outer ring of described annular bearing with rolling contact sets wavy spring to use the pretension of wavy spring 6, annular bearing with rolling contact
Outer ring on stuffing hole is set.Spring base 3 before the described front end of preloading spring 2 is set, after the described rear end of preloading spring 2 is set
Spring base 1.
Centrifugal pump provided by the utility model is all set from the drive end and anti-drive end of prefastening grease lubrication bearing structure
Rolling bearing is equipped with, anti-drive end journal bearing outer ring sets wavy spring 6, using the pretension of wavy spring 6.Drive end bearing is adopted
Installed with thrust angular contact bearings D B, use the axial level pressure in bearing pre-tightened mode pre- during utility model works
Tight mode, the pretightning force according to needed for drive end thrust angular contact bearing determines the length of preloading spring 2, even if long-play
Also without adjustment, bearing is in good running status all the time.During work, the pretightning force suffered by drive end rolling bearing 9
The pretightning force provided equal to preloading spring 2, the regulation and control of pretightning force are realized by adjusting the length of preloading spring 2, so as to full
The requirement extension operating rotational speed range of the different operating modes of foot.The permission working speed of centrifugal pump is improved, widens the performance of centrifugal pump
Spectrum application scope.
It need to be explained further, the size of pretightning force directly affects the performance of rotating mechanism, specifically, pretightning force is got over
Greatly, the rigidity of rotating mechanism improves, but limit speed reduces；When rotating mechanism require heavy load tick-over when, preferably use compared with
Big pretightning force, it is on the contrary then preferably use less pretightning force.
Grease lubrication is used simultaneously, lubricating grease has higher bearing capacity and more preferable damping shock absorption ability；Due to thickening
The absorption of agent structural system, lubricating grease have relatively low evaporation rate, therefore under starved lubrication conditions, particularly in height
In gentle long-term operation, lubricating grease has better characteristics；, and can specific viscosity due under the capillarity of thickening agent structure
Lubricating oil is compared, grease base plinth oil creep tendency it is small；Lubricating grease can form the fat circle with certain sealing function, can prevent
The intrusion of solid or liquid pollutant, be advantageous to use in moist and dirty environment；Lubricating grease can be firmly adhered to lubricate
On surface, also it is not lost in vertical surface even even in tilting.Under external force, it can be deformed upon, and be flowed as oil
It is dynamic；Because lubricating grease adhesiveness is good, not easily run off, so satisfied lubricating status can still be kept after a shutdown by restarting；Use fat
A small amount of lubricating grease generally need to be only applied to lubricated surface by lubrication, thus can greatly save the demand of oil product.
Finally it should be noted that:Above example is only illustrating the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：Specific embodiment of the present utility model can still be modified or some technical characteristics are equally replaced
Change；Without departing from the spirit of technical solutions of the utility model, it all should cover in the claimed technical scheme of the utility model
Among scope.
Claims (6)
1. a kind of centrifugal pump is from prefastening grease lubrication bearing structure, including drive end bearing part and non-driven-end bearing part,
Characterized in that, preloading spring (2), described pretension are set between the drive end bearing part and non-driven-end bearing part
Spring base (3) before spring (2) front end is set, described preloading spring (2) rear end set rear spring seat (1), drive end axle bearing portion
Divide and non-driven-end bearing part sets stuffing hole respectively.
2. centrifugal pump is from prefastening grease lubrication bearing structure according to claim 1, it is characterised in that described drive end axle
Bearing portion point includes rear bearing block gland (8) and drive end rolling bearing (9), described rear bearing block gland (8) by screw and
Bearing block (5) is fixedly connected.
3. centrifugal pump is from prefastening grease lubrication bearing structure according to claim 2, it is characterised in that described drive end rolling
Dynamic bearing (9) is thrust angular contact bearing, and quantity is two or more, and bearing spacer can be set between thrust angular contact bearing
(7)。
4. centrifugal pump is from prefastening grease lubrication bearing structure according to claim 3, it is characterised in that on bearing spacer (7)
Stuffing hole is set.
5. centrifugal pump is from prefastening grease lubrication bearing structure according to claim 1, it is characterised in that described anti-drive end
Bearing portions includes anti-drive end rolling bearing (10) and bearing box (4), and non-driven-end bearing part is all arranged at bearing block (5)
Interior, described anti-drive end rolling bearing (10) is annular bearing with rolling contact, and annular bearing with rolling contact is arranged in bearing box (4).
6. centrifugal pump is from prefastening grease lubrication bearing structure according to claim 5, it is characterised in that described is radial rolling
The outer ring of bearing sets wavy spring (6), and stuffing hole is set on the outer ring of annular bearing with rolling contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720963826.7U CN207064309U (en) | 2017-08-03 | 2017-08-03 | A kind of centrifugal pump is from prefastening grease lubrication bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720963826.7U CN207064309U (en) | 2017-08-03 | 2017-08-03 | A kind of centrifugal pump is from prefastening grease lubrication bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207064309U true CN207064309U (en) | 2018-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720963826.7U Active CN207064309U (en) | 2017-08-03 | 2017-08-03 | A kind of centrifugal pump is from prefastening grease lubrication bearing structure |
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| CN (1) | CN207064309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188795A (en) * | 2021-03-25 | 2021-07-30 | 北京精密机电控制设备研究所 | Rolling bearing performance test equipment for turbo pump |
-
2017
- 2017-08-03 CN CN201720963826.7U patent/CN207064309U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188795A (en) * | 2021-03-25 | 2021-07-30 | 北京精密机电控制设备研究所 | Rolling bearing performance test equipment for turbo pump |
| CN113188795B (en) * | 2021-03-25 | 2022-12-13 | 北京精密机电控制设备研究所 | Rolling bearing performance test equipment for turbo pump |
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