CN205503763U - Swirl turbocharging formula liquid -Lubricating bearing of no shaft seal pump - Google Patents
Swirl turbocharging formula liquid -Lubricating bearing of no shaft seal pump Download PDFInfo
- Publication number
- CN205503763U CN205503763U CN201620168190.2U CN201620168190U CN205503763U CN 205503763 U CN205503763 U CN 205503763U CN 201620168190 U CN201620168190 U CN 201620168190U CN 205503763 U CN205503763 U CN 205503763U
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- CN
- China
- Prior art keywords
- lining
- axle sleeve
- bearing shell
- axle
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Mounting Of Bearings Or Others (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The utility model provides a swirl turbocharging formula liquid -Lubricating bearing of no shaft seal pump, is including axle, axle sleeve, axle bush, bushing and gland, the axle sleeve suit is epaxial, the axle bush suit is on the axle sleeve, and formation internal channel A between axle sleeve and the axle bush, the bushing suit is on the axle bush, and runner B in forming between axle bush and the bushing, axle sleeve axial direction goes up to open there is the axle sleeve external screw thread, offer the protruding spline of several on the axle bush axial direction, and offered flexible hole on the axle bush between the adjacent spline, at least one groove has been seted up to the axle bush internal surface, and the position in groove is corresponding with the position of spline, the gland symmetric distribution is at bushing axial both ends, and the gland is connected with the bushing through the screw.
Description
Technical field
This utility model relates to the bearing shell cooling of glandlesspump, and can be used for hydrodynamic lubrication sliding bearing, refers more particularly to a kind of nothing
The spiral boosting formula fluid lubricated bearing of shaft seal pump.
Background technology
Canned motor pump and magnetic drive pump, as a typical class pump integral type glandlesspump, need to enter bearing shell by the liquid of self conveying
Row cooling and lubricating, need to carry out the bearing of cooling and lubricating by self liquid be all referred to as fluid lubricated bearing as this kind of.But this class I liquid I
Lubrication bearing, in the case of glandlesspump runs up, often causes bearing shell to produce big calorimetric because of the liquid film friction of fluid lubricated bearing
Measure and damage.Thus, the heat radiation cooling system of bearing shell is one of design challenges of high speed canned motor pump.
Although, have pointed out now by forming height nip at bearing two ends, walk heat by the fluxion strap of liquid and reach cooling and lubricating
Effect, but under practical situation, it is possible to the pressure drop being actually formed at bearing two ends is fairly limited, and the flowing of liquid is relatively slow,
Easily in formation slough, high heat region, intended cooling and lubricating effect can not be reached.
For can effectively solve the problem that the problems such as lubricant effect difference that the heat radiation that the slough problem in high heat region is brought causes not in time, this
Utility model provides the spiral boosting formula fluid lubricated bearing of a kind of glandlesspump, under the full duty of glandlesspump, this knot
Structure can carry out sufficient lubrication and utilize coolant to take away the heat that bearing shell produces in time bearing.
Summary of the invention
This utility model is to can effectively solve the problem that the lubricant effect that the heat radiation that the slough problem in high heat region is brought causes not in time
The problems such as difference, this utility model provides the spiral boosting formula fluid lubricated bearing of a kind of glandlesspump, in the full work of glandlesspump
Under state, this structure can carry out sufficient lubrication and utilize coolant to take away the heat that bearing shell produces in time bearing.
This utility model is achieved by the following technical solution:
The spiral boosting formula fluid lubricated bearing of a kind of glandlesspump, including axle, axle sleeve, bearing shell, lining and gland；
Described axle sleeve is sleeved on axle；Described axle bush sleeve is contained on axle sleeve, and forms internal channel A between axle sleeve and bearing shell；Described
Lining is sleeved on bearing shell, and forms inner flow passage B between bearing shell and lining；Axle sleeve external screw thread is had on described axle sleeve axial direction；
Offer several projecting splines on described bearing shell axial direction, and on bearing shell, between adjacent spline, offer round tube hole；Described bearing shell
Inner surface offers at least one groove, and the position of groove is corresponding with the position of spline；It is axial that described gland is symmetrically distributed in lining
Two ends, and gland is connected with lining by screw.
Further, described inner surface of bearing bush offers 4 grooves.
Further, packing seal is passed through between described gland and lining.
Further, described axle sleeve and bearing shell are matched in clearance.
Further, described bearing shell is matched in clearance with coordinating of lining.
Further, the round tube hole between described adjacent two splines is 2～10.
Further, described lining can be divided into lining and lower lining.
Beneficial effect:
1., compared with other cooling scheme, due to the effect of the sleeve thread between axle sleeve and bearing shell, the program has good from energy-absorbing
Power also can form obvious pressure drop at sleeve thread two ends.
2. in common cooling circuit, due to the slight gap between axle sleeve and bearing shell, the fluid of lubrication easily carrying because of flow velocity
The reduction of high build-up of pressure, thus less than its pressure for vaporization, cavitation phenomenons occurs, and then corrodes bearing shell and lose fluid tool itself
Some total heads, and sped structure can improve the energy (being mainly manifested on pressure energy head) of fluid so that it is vaporize more than it
Pressure, thus avoid the generation of cavitation phenomenons and extend the service life of bearing shell.
3. the coolant rate of conveying is steady, and pressure fluctuation is little；Amount of heat can be taken away by immediate stability.
4. because of the build-in attribute of screw-type structure, it is low that this type structure has noise, and efficiency is high, the feature of life-span length.
5. it is positive displacement structure due to this kind of pressurized construction, so being formed without eddy current, insensitive to the viscosity of medium during pumped (conveying) medium,
Even if during so coolant is high viscosity medium, this type structure also can fully play its effectiveness.
6. on the premise of significantly can not utilizing longitudinal size, the screw thread on axle sleeve make use of axial dimension as far as possible, is carrying
While high conveyance fluid usefulness, make use of limited inside narrow space as far as possible.
The most common structure often inner surface just for bearing shell is lubricated, and this spiral boosting formula fluid lubricated bearing is due to bearing shell
The existence of outer surface transfusion groove, fluid, in addition to can lubricating inner surface of bearing bush, also can flow into lining and axle by the hole on bearing shell
Bearing shell outer surface is cooled down by the transfusion groove between watt, improves cooling effectiveness, improves the situation that thermal stress branch is uneven.
Accompanying drawing explanation
Accompanying drawing 1 is that the spiral boosting formula fluid lubricated bearing of this utility model glandlesspump partly cuts open schematic diagram along central shaft；
Accompanying drawing 2 is this utility model spiral sleeve structural representation；
Accompanying drawing 3 is this utility model bearing bush structure schematic diagram；
Accompanying drawing 4 is this utility model axle sleeve and Sleeve assembling pattern diagram.
Reference is as follows:
1-axle；2-axle sleeve；3-bearing shell；4-lining；5-filler；6-screw；7-gland；8-axle sleeve external screw thread；9-inner flow passage A；
10-inner flow passage B；11-outer flow passage.
Detailed description of the invention
For clearer explanation the technical solution of the utility model, explanation below in conjunction with the accompanying drawings:
Shown in accompanying drawing 1, this utility model is the spiral boosting formula fluid lubricated bearing of glandlesspump, and described axle sleeve 2 is set with
On axle 1；Described bearing shell 3 is sleeved on axle sleeve 2, axle sleeve 2 is offered axle sleeve external screw thread 8, bearing shell 3 is machined with projection
Spline, is machined with round tube hole between spline, because difference in height can be formed between such projecting splines and round tube hole place arc surface
Groove thus carry liquid to the inner flow passage B10 formed between bearing shell 3 and lining 4, it addition, the mistake that axle sleeve 2 rotates about the axis
Cheng Zhong, is full of the first cooling liquid, flows through Part II in the groove between bearing shell 3 and lining 4 between bearing shell 3 and axle sleeve 2
Cooling liquid, the sped structure that the axle sleeve external screw thread 8 that this axle sleeve 2 is opened is formed can improve the energy of fluid so that it is is more than
Its pressure for vaporization, such that it is able to avoid the generation of cavitation and extend the service life of bearing shell；The conveying of the most such structure
Coolant rate is steady, and pressure fluctuation is little；Amount of heat can be taken away by immediate stability；Dismantle for convenience, lining 4 can be set
Being set to lower section and be the upper lining of semicircle and lower lining, on this, lining and lower lining are removably connected by bolt, thus rise
To convenient dismounting and the purpose of maintenance.
Shown in accompanying drawing 2 to 4, axle sleeve 2 is helical structure formula, and described bearing shell 3 axial direction offers several protruding flower
Round tube hole is offered between adjacent spline on key, and bearing shell 3；Round tube hole number between two splines is 2～10, described axle
Watt 3 inner surface correspondences offer and offer groove at spline；The quantity of the groove offered is less than or equal to the number of projecting splines；
The fit structure between cooperation and bearing shell 3 and lining 4 between axle sleeve 2 and bearing shell 3, due to bearing shell 3 outer surface transfusion groove
Existing, fluid, in addition to can lubricating bearing shell 3 inner surface, also can flow between lining 4 and bearing shell 3 through the round tube hole that bearing shell 3 is offered
Transfusion groove bearing shell 3 outer surface is cooled down, improve cooling effectiveness and improve the situation that thermal stress branch is uneven.
Work process:
When the motor is energized, axle sleeve 2 rotates with angular velocity omega under the drive of axle 1, due to axle sleeve external screw thread 8 and bearing shell 3 inwall
Between closely cooperate, in axle sleeve external screw thread 8 screw thread interval, multiple sealing space will be divided into, along with the rotation of axle sleeve 2,
These seal spaces constantly formed in the suction side of axle sleeve 2, by suck liquid-filled wherein, and along axle sleeve 2 axially consecutive push away
Moving to outlet side, the liquid that would be enclosed in each space is constantly discharged, the feelings constantly pushed ahead when thread-whirling just as nut
Shape is such, and after liquid enters inner flow passage, cooling liquid i.e. proceeds by shunting, and a part of liquid flows into axle by the hole on bearing shell
Outer wall is also cooled down by transfusion groove on watt 3 outer walls, and another part liquid is by the gap between axle sleeve 2 and bearing shell 3 inwall also
Carry out two strands of liquid in cooling and lubricating, inner flow passage A and inner flow passage B to converge in bearing shell 3 edge and be discharged into outer flow passage 11.
Described embodiment is that of the present utility model preferred embodiment but this utility model is not limited to above-mentioned embodiment,
In the case of flesh and blood of the present utility model, those skilled in the art can make any conspicuously improved,
Replace or modification belongs to protection scope of the present invention.
Claims (7)
1. the spiral boosting formula fluid lubricated bearing of a glandlesspump, it is characterised in that: include axle (1), axle sleeve (2),
Bearing shell (3), lining (4) and gland (7)；Described axle sleeve (2) is sleeved on axle (1)；Described bearing shell (3) is sleeved on
On axle sleeve (2), and between axle sleeve (2) and bearing shell (3), form internal channel A (9)；Described lining (4) is sleeved on bearing shell
(3) on, and inner flow passage B (10) between bearing shell (3) and lining (4), is formed；Have on described axle sleeve (2) axial direction
Axle sleeve external screw thread (8)；Several projecting splines, and the upper adjacent spline of bearing shell (3) is offered on described bearing shell (3) axial direction
Between offer round tube hole；Described bearing shell (3) inner surface offers at least one groove, and the position of groove is relative with the position of spline
Should；Described gland (7) is symmetrically distributed in lining (4) axially two ends, and gland (7) is by screw (6) and lining (4)
It is connected.
The spiral boosting formula fluid lubricated bearing of glandlesspump the most according to claim 1, it is characterised in that described bearing shell
(3) inner surface offers 4 grooves.
The spiral boosting formula fluid lubricated bearing of glandlesspump the most according to claim 1, it is characterised in that described gland
(7) and sealed by filler (5) between lining (4).
The spiral boosting formula fluid lubricated bearing of glandlesspump the most according to claim 1, it is characterised in that described axle sleeve
(2) with bearing shell (3) be matched in clearance.
The spiral boosting formula fluid lubricated bearing of glandlesspump the most according to claim 1, it is characterised in that described bearing shell
(3) it is matched in clearance with coordinating of lining (4).
The spiral boosting formula fluid lubricated bearing of glandlesspump the most according to claim 1, it is characterised in that described biphase
Round tube hole between adjacent spline is 2～10.
7. according to the spiral boosting formula fluid lubricated bearing of the glandlesspump described in any one of claim 1 to 6, it is characterised in that
Described lining (4) can be divided into lower section to be the upper lining of semicircle and lower lining, upper lining and lower lining being bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620168190.2U CN205503763U (en) | 2016-03-04 | 2016-03-04 | Swirl turbocharging formula liquid -Lubricating bearing of no shaft seal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620168190.2U CN205503763U (en) | 2016-03-04 | 2016-03-04 | Swirl turbocharging formula liquid -Lubricating bearing of no shaft seal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205503763U true CN205503763U (en) | 2016-08-24 |
Family
ID=56727694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620168190.2U Expired - Fee Related CN205503763U (en) | 2016-03-04 | 2016-03-04 | Swirl turbocharging formula liquid -Lubricating bearing of no shaft seal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205503763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545959A (en) * | 2016-03-04 | 2016-05-04 | 江苏大学 | Spiral supercharging type liquid-lubricated bearing of shaft-seal-free pump |
-
2016
- 2016-03-04 CN CN201620168190.2U patent/CN205503763U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545959A (en) * | 2016-03-04 | 2016-05-04 | 江苏大学 | Spiral supercharging type liquid-lubricated bearing of shaft-seal-free pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20190304 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |