CN203230626U - Elastomer impeller sea water pump - Google Patents
Elastomer impeller sea water pump Download PDFInfo
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- CN203230626U CN203230626U CN 201320069811 CN201320069811U CN203230626U CN 203230626 U CN203230626 U CN 203230626U CN 201320069811 CN201320069811 CN 201320069811 CN 201320069811 U CN201320069811 U CN 201320069811U CN 203230626 U CN203230626 U CN 203230626U
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- impeller
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- elastomer
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- water pump
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Abstract
The utility model discloses an elastomer impeller sea water pump, comprising a housing, a water pump shaft, bearings, water seals, an elastomer impeller, an impeller pad and an end cover. Two axial ends of a work cavity are respectively enclosed by an inner side of the end cover and one side of the impeller pad; the end face of the work cavity is an enclosed curve which is divided into four corners (delta, beta, gamma and epsilon) in 360 DEG, wherein the delta, beta, gamma and epsilon corners respectively correspond with a water absorption curve, a water delivery arc, a draining curve and a sealing arc; the water absorption curve and the draining curve are both sine curves; the radius R of the water delivery arc- the radius r of the sealing arc= a maximum lift h of a sine curve. The elastomer impeller sea water pump has a compact structure, a speed continuous with an acceleration curve, has no abrupt change, can not generate inertia impact force, is in favor of high speed running of a sea water pump and has small erosion to an elastomer impeller.
Description
Technical field
The utility model relates to a kind of cooling water pump of diesel engine, and particularly a kind of extracting seawater belongs to displacement fluid pump technical field by the sea water pump of circulation fresh water in the cools down diesel engine.
Background technique
Boats and ships are when ocean navigation, and the sea water pump extracting seawater pumps into circulation fresh water in the cools down diesel engine, are used for cooling diesel engine cylinder block or other heating component.The rubber impeller blade that rubber impeller sea water pump is arranged in the oblate work chamber of sea water pump has stronger elasticity and pliability, during the rotation of rubber impeller, utilize rubber tree leaf bending, the volume-variation when resetting between rubber tree leaf to carry out pump water, overcome defectives such as the complex structure that the existing diesel sea water pump exists, cost height, rate of fault height.Rubber impeller sea water pump uses the elastic caoutchouc impeller of overall simplification structure to substitute rigid telescopic formula blade impeller, make the rotator type sea water pump reach purpose simple in structure, that cost is low, rate of fault is low, this pump has that suction capacity height, internal leakage are little simultaneously, suction efficient height, corrosion resistance are strong, change impeller advantage such as convenient and safe and reliable rapidly, is therefore selected for use by increasing user.
The work chamber of existing rubber impeller sea water pump is two kinds, a kind of is integrated type work chamber, its sectional shape is oval, utilize the change in radius of four heart ellipses that volume is changed and carry out pump water, in order to guarantee the sealing of water pump intake-outlet, must between intake-outlet, leave certain distance, therefore when the rubber impeller from water outlet to the water intake rotation process, after the water outlet between two blades is closed fully, because change in radius makes interlobate space still be squeezed, thereby produce " being stranded water " phenomenon that hydraulic pressure increases, turn over break point until it, rubber impeller and water pump spindle are subjected to extra radial pressure, influence the working life of rubber impeller and water pump spindle, have increased the reactive power loss of water pump simultaneously.The patent No. is that 201120051929.9 utility model patent " a kind of impeller type sea water pump of elastic caoutchouc impeller " discloses another kind of made up work chamber, its sectional shape is water intake and crescent moon ring of water outlet upside assembly unit of circular work chamber, make work chamber's cross section become the oblateness of different radii up and down, this impeller type sea water pump does not only overcome aforementioned first kind of integrated type work chamber " tired water " problem, because crescent moon ring two ends and circular cross section work chamber can't accomplish to be connected smoothly, impact and wearing and tearing to the rubber impeller blade have been increased simultaneously.In addition, the intake-outlet of all sea water pumps and the pump housing all are an integral body, and therefore, the water transport port direction of its intake-outlet can not change, thereby have reduced flexibility and versatility that water pump is installed and used.
Summary of the invention
The purpose of this utility model is the defective that overcomes existing rubber impeller sea water pump, and a kind of rubber impeller sea water pump of avoiding taking place to be stranded the water phenomenon is provided, and prolongs the working life of rubber impeller.
The utility model is achieved by the following technical programs:
A kind of elastomer impeller sea water pump, comprise housing, water pump spindle, bearing, water seal, elastomer impeller, impeller pad and end cap, described water pump spindle middle part is bearing in housing one end by pair of bearings, water pump spindle one end extends housing one end, and the water pump spindle the other end is fixedlyed connected with the elastomer impeller; Described elastomer impeller radially outer edge is inlaid in the work chamber of the housing the other end, and the impeller pad is arranged on work chamber's one end face; Described water seal is pressed in the housing, is arranged on the water pump spindle between elastomer impeller and the pair of bearings; Described end cap is fixed on the housing the other end end face, and housing one side is provided with water intake, and the housing opposite side is provided with water outlet; The axial two ends of described work chamber are one side closed by end cap inboard and impeller pad respectively, and work chamber's end face is the curve of sealing, and the curve of described sealing is divided in 360 ° of scopes
, β, γ and four corners of ε,
The corresponding water suction curves of corner, the corresponding water delivery circular arc of βZhuan Jiao, the corresponding draining curve of γ corner, the corresponding sealing of ε corner circular arc; Water suction curves and draining curve are sinusoidal curve, water delivery radius of arc R-sealing circular arc radius r=sinusoidal curve maximum lift h;
Sinusoidal curve radial displacement equation S=h (
-
Sin (
))
Wherein, h is sinusoidal curve maximum radial displacement amount,
Be the variable corner of water suction curves correspondence, the corner of corresponding water suction curves
Equate with corresponding draining curve γ corner.
The purpose of this utility model can also further realize by following technical measures.
Aforesaid elastomer impeller sea water pump, wherein each curve of work chamber's end face connects at the position, public point of contact of corresponding corner separately kiss; Observe from housing the other end end face, clockwise rotate direction according to the elastomer impeller,
In the angle range, the water suction curves upper end connects with sealing circular arc one end kiss, along with corner constantly increases, water suction curves begins radially to increase gradually downwards from the sinusoidal curve zero-bit of upper end, rise to sinusoidal maximum lift h point position until the water suction curves lower extreme point, water suction curves connects in h point position and water delivery circular arc one end kiss; In the γ angle range, draining curve lower end begins upwards radially to reduce gradually from sinusoidal curve maximum lift h point, when rising to sinusoidal curve zero-bit position, connects with draining curve upper end and sealing circular curve the other end kiss.
Aforesaid elastomer impeller sea water pump, the radius of wherein said elastomer impeller/water delivery radius of arc R is 1.04～1.05; The least radius that forms behind the bending blade of elastomer impeller/sealing circular arc radius r is 0.94～0.95; Described
Be 60 ° ± 5 ° with γ, described β is 90 ° ± 5 °, and described ε is 150 ° ± 5 °.
Aforesaid elastomer impeller sea water pump, wherein said water intake communicates with water suction curves and water delivery circular arc one end, and described water outlet communicates with draining curve and sealing circular arc one end.
The utility model compact structure, by sinusoidal curve radial displacement equation as can be known, its speed and acceleration diagram are continuous, do not have jumping phenomenon, can not produce inertial impact force, are conducive to running up of sea water pump, and little to the wearing and tearing of elastomer impeller.The water suction curves of the utility model work chamber and draining curve have adopted acceleration diagram to the radial variation amount at work chamber center, its advantage is in a sinusoidal period, each blade of sea water pump elastomer impeller is when entering, withdrawing from water suction curves and draining curve, its radial velocity, acceleration all are 0, thereby guarantee that pump operation is steady.Because the water suction curves of water pump and draining curve are with respect to rotating shaft center symmetry, and hard-over
Equate that with γ behind the blade and the change of water pump rotating shaft sense of rotation of elastomer impeller, its intake-outlet is interchangeable.In order fully to use the sine function characteristic of one-period, the utility model is that water suction curves and draining curve radial displacement sine function increase an angle restriction variable
Thereby, make pump sump curve and draining curve be 0 at corner～
In the scope, the sinusoidal chart picture of a complete cycle is arranged, satisfy usage requirement.The water delivery circular arc of work chamber and sealing circular arc are respectively the circular arc of different radii, avoid sea water pump to produce and are stranded the water phenomenon, make sea water pump under identical flow, and the amount of deformation of elastomer impeller reduces greatly, has prolonged the working life of elastomer impeller.
Advantage of the present utility model and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain that these embodiments only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is work chamber's end view of the utility model housing;
Fig. 4 is the zoomed-in view of water suction curves.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As Fig. 1～shown in Figure 4, the utility model comprises housing 1, water pump spindle 2, bearing 3, water seal 4, elastomer impeller 5, impeller pad 6 and end cap 7, the housing 1 of present embodiment adopts stainless steel to make, and intensity height, Corrosion Protection are good, and elastomer impeller 5 adopts rubber to make.Water pump spindle 2 middle parts are bearing in housing 1 right-hand member by pair of bearings 3, and water pump spindle 2 one ends extend housing 1 right-hand member, and the other end and elastomer impeller 5 are fixedlyed connected by serration.The center of elastomer impeller 5 is cylindrical body 51, radially extend into radial uniform a plurality of blades 52, more than 5 blade 52 radially outer edges of elastomer impeller are inlaid in the work chamber 11 of housing 1 the other end, impeller pad 6 is arranged on work chamber 11 right sides, water seal 4 is pressed in the housing 1, be arranged on the water pump spindle 2 between elastomer impeller 5 and the pair of bearings 3, water seal 4 has separated the work chamber 11 of housing 1 left end and the drive cavity 12 of right-hand member.End cap 7 is fixed on the housing 1 left end end face, and by O-ring seals 8 seal operation chambers 11.Housing 1 left side is provided with water intake 13, and the right side is provided with water outlet 14, and work chamber 11 axial two ends are one side closed by end cap 7 inboards and impeller pad 6 respectively, and work chamber's 11 end faces are the curve of sealing, and the curve of described sealing is divided in 360 ° of scopes
, β, γ and four corners of ε,
The corresponding water suction curves 111 of corner, the corresponding water delivery circular arc 112 of βZhuan Jiao, the corresponding draining curve 113 of γ corner, the corresponding sealing of ε corner circular arc 114; Water suction curves 111 and draining curve 113 are sinusoidal curve, water delivery circular arc 112 radius Rs-sealing circular arc 114 radius r=sinusoidal curve maximum lift h;
Sinusoidal curve radial displacement equation S=h (
-
Sin (
))
Wherein, h is sinusoidal curve maximum radial displacement amount,
Be the variable corner of water suction curves 111 or draining curve 113 correspondences, the corner of water suction curves 111
Equate with the γ corner of corresponding draining curve 113.
Work chamber's each curve of 11 end faces connects at the position, public point of contact of corresponding corner separately kiss; Observe from housing the other end end face, clockwise rotate direction according to elastomer impeller 5,
In the angle range, water suction curves 111 upper ends connect with sealing circular arc 114 1 ends kiss, along with corner constantly increases, water suction curves 111 begins radially to increase gradually downwards from the sinusoidal curve zero-bit of upper end, rise to sinusoidal maximum lift h point position until the water suction curves lower extreme point, water suction curves 111 connects in h point position and water delivery circular arc 112 1 ends kiss; In the γ angle range, draining curve 113 lower ends begin upwards radially to reduce gradually from sinusoidal curve maximum lift h point, when rising to sinusoidal curve zero-bit position, connect with draining curve 113 upper ends and sealing circular curve the other end kiss.
The radius of the elastomer impeller 5 of present embodiment/water delivery radius of arc R is 1.05, guarantees to be resisted against in the work chamber 11 after the blade 52 radially outer edge bendings, reaches good sealing effect.The elastomer impeller 5 of present embodiment is after its blade 52 bendings, and the least radius of formation/sealing circular arc radius r is 0.94～0.95; Guarantee that water pump has enough volume spaces, controlled the amount of deformation of blade 52 simultaneously again, prolong its working life.Present embodiment
Be 60 ° with γ, β is 90 °, and ε is 150 °.Water intake 13 communicates with water suction curves 111 and water delivery circular arc 112 1 ends, and water outlet 14 communicates with draining curve 113 and sealing circular arc 114 1 ends.
The drawing method of water suction curves 111 or draining curve 113 is as follows:
1, as shown in Figure 4, set up rectangular coordinate system, make a radius at true origin O and be
Unit circle and 8 five equilibriums, unit circle 8 equal diversion points are made diagram connect, intercept at the angle axle
=60 °, and make 8 five equilibriums, exist simultaneously
It highly is the straight line 8Q of h that the place does, and connects OQ; Respectively to the horizontal intersection point on unit circle equal diversion point and the S axle, make the parallel lines of OQ and intersect with the angle bisectrix, connect each point with smooth curve in order and become required sinusoidal curve.
2, by water delivery circular arc 112 radius Rs 1 and sealing circular arc 114 radius Rs two concentric circles that draw, according to
, β, γ, ε separately angle and with respect to the center line of circle, determine water suction curves 111 or draining curve 113 two ends respectively with the interface point of water delivery circular arc 112, sealing circular arc 114.
3, respectively to water suction curves 111 correspondences
γ interval, draining curve correspondence is interval to make 8 five equilibriums, thereby obtains the equal diversion point in water suction curves 111 intervals or draining curve 113 intervals.
4, the equal diversion point on the connection center of circle and the water delivery circle forms bisectrix.
5, with the equal diversion point be starting point, distinguishing height corresponding on the cut-away view 4 on the bisectrix in order, form arc point.
6, respectively each arc point is coupled together with smooth curve, form water suction curves 111, draining curve 113.
The utility model utilizes the sinusoidal acceleration curve, elastomer impeller 5 is being entered and the water suction curves 111 of the chamber 11 of deactivating or draining curve 113 brief accelerations are zero, avoid acceleration to the impact of elastomer impeller 5 and water pump spindle 2, in addition, if with the elastomer of elastomer impeller 5 when packing work chamber 11 into, its compression sense of rotation is reverse, can realize that then the water pump intake-outlet exchanges, and namely water suction curves is that γ interval or draining curve are
Interval.
In addition to the implementation, the utility model can also have other mode of executions, and all employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (6)
1. elastomer impeller sea water pump, comprise housing, water pump spindle, bearing, water seal, elastomer impeller, impeller pad and end cap, described water pump spindle middle part is bearing in housing one end by pair of bearings, water pump spindle one end extends housing one end, and the water pump spindle the other end is fixedlyed connected with the elastomer impeller; Described elastomer impeller radially outer edge is inlaid in the work chamber of the housing the other end, and the impeller pad is arranged on work chamber's one end face; Described water seal is pressed in the housing, is arranged on the water pump spindle between elastomer impeller and the pair of bearings; Described end cap is fixed on the housing the other end end face, and housing one side is provided with water intake, and the housing opposite side is provided with water outlet; It is characterized in that the axial two ends of described work chamber are one side closed by end cap inboard and impeller pad respectively, work chamber's end face is the curve of sealing, and the curve of described sealing is divided in 360 ° of scopes
, β, γ and four corners of ε,
The corresponding water suction curves of corner, the corresponding water delivery circular arc of βZhuan Jiao, the corresponding draining curve of γ corner, the corresponding sealing of ε corner circular arc; Water suction curves and draining curve are sinusoidal curve, water delivery radius of arc R-sealing circular arc radius r=sinusoidal curve maximum lift h;
Sinusoidal curve radial displacement S=h (
-
Sin (
)),
H is sinusoidal curve maximum radial displacement amount,
Be the variable corner of water suction curves or draining curve correspondence, the corner of corresponding water suction curves
Equate with corresponding draining curve γ corner.
2. elastomer impeller sea water pump according to claim 1 is characterized in that, each curve of work chamber's end face connects at the position, public point of contact of corresponding corner separately kiss; Observe from housing the other end end face, clockwise rotate direction according to the elastomer impeller,
In the angle range, the water suction curves upper end connects with sealing circular arc one end kiss, along with corner constantly increases, water suction curves begins radially to increase gradually downwards from the sinusoidal curve zero-bit of upper end, rise to sinusoidal maximum lift h point position until the water suction curves lower extreme point, water suction curves connects in h point position and water delivery circular arc one end kiss; In the γ angle range, draining curve lower end begins upwards radially to reduce gradually from sinusoidal curve maximum lift h point, when rising to sinusoidal curve zero-bit position, connects with draining curve upper end and sealing circular curve the other end kiss.
3. elastomer impeller sea water pump according to claim 1 is characterized in that, the radius of described elastomer impeller/water delivery radius of arc R is 1.04～1.05.
4. elastomer impeller sea water pump according to claim 1 is characterized in that, the least radius that forms behind the bending blade of elastomer impeller/sealing circular arc radius r is 0.94～0.95.
5. elastomer impeller sea water pump according to claim 1 is characterized in that, and is described
Be 60 ° ± 5 ° with γ, described β is 90 ° ± 5 °, and described ε is 150 ° ± 5 °.
6. elastomer impeller sea water pump according to claim 1 is characterized in that, described water intake communicates with water suction curves and water delivery circular arc one end, and described water outlet communicates with draining curve and sealing circular arc one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320069811 CN203230626U (en) | 2013-02-07 | 2013-02-07 | Elastomer impeller sea water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320069811 CN203230626U (en) | 2013-02-07 | 2013-02-07 | Elastomer impeller sea water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230626U true CN203230626U (en) | 2013-10-09 |
Family
ID=49286754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320069811 Withdrawn - After Issue CN203230626U (en) | 2013-02-07 | 2013-02-07 | Elastomer impeller sea water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062120A (en) * | 2013-02-07 | 2013-04-24 | 江苏科技大学 | Sea water pump with elastic body impeller |
-
2013
- 2013-02-07 CN CN 201320069811 patent/CN203230626U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062120A (en) * | 2013-02-07 | 2013-04-24 | 江苏科技大学 | Sea water pump with elastic body impeller |
| CN103062120B (en) * | 2013-02-07 | 2015-04-29 | 江苏科技大学 | Sea water pump with elastic body impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131009 Effective date of abandoning: 20150429 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhenjiang four ocean Diesel Engine Manufacturing Co., Ltd. Assignor: Jiangsu University of Science and Technology Contract record no.: 2015320000063 Denomination of utility model: Sea water pump with elastic body impeller Granted publication date: 20131009 License type: Exclusive License Record date: 20150317 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |