CN201292005Y - Propulsion pump - Google Patents
Propulsion pump Download PDFInfo
- Publication number
- CN201292005Y CN201292005Y CNU200820217710XU CN200820217710U CN201292005Y CN 201292005 Y CN201292005 Y CN 201292005Y CN U200820217710X U CNU200820217710X U CN U200820217710XU CN 200820217710 U CN200820217710 U CN 200820217710U CN 201292005 Y CN201292005 Y CN 201292005Y
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- CN
- China
- Prior art keywords
- transmission shaft
- boost pump
- shaft
- propeller
- fixed
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- 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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Abstract
The utility model discloses a propulsion pump which comprises a propeller and a transmission shaft; taking service direction of the propulsion pump as reference, a diversion plate is fixed in the interior of the rear end of the pump shell; the diversion plate is mainly composed of a plurality of guide vanes; each guide vane is composed of a straight segment and an arc-surface segment; the straight segment axially parallels to the transmission shaft; one end of the arc-surface segment is connected with the straight segment and the other end of the arc-surface segment is close to the propeller; the straight segment is integrated with the arc-surface segment into a whole; the diversion plate at least comprises two guide vanes; the guide vanes surround the pump shell central shaft and are in equal-interval distribution; ends of the guide vanes far from the pump shell central shaft are fixed on the inner surface of the pump shell; meanwhile, the arc-surface segments of the guide vanes have the same orientation on the rotation direction of the transmission shaft. The propulsion pump can enable water flow to be sprayed in straight line, so as to improve propulsion; the propulsion pump has simple structure and easy implementation.
Description
Technical field
The utility model relates to a kind of underwater propeller, especially a kind of underwater propeller that the current straight line can be sprayed.
Background technology
General existing underwater propeller is that current are sprayed with spiral fashion, the power that current produced of spiral fashion ejection can be divided into forward thrust and the component on the hand of rotation, and advance that hull or surfboard etc. advance effective force be forward thrust, therefore current can not all be converted into the power of pushing ahead with the power that the spiral fashion ejection is produced, and make effective merit reduce.
Summary of the invention
In order to overcome above-mentioned defective, the utility model provides a kind of boost pump, and this boost pump can make current spray with straight line, has improved thrust, and this example is simple in structure, easy to implement.
The utility model for the technical scheme that solves its technical matters and adopt is:
A kind of boost pump, comprise screw propeller and transmission shaft, the screw propeller fixed cover is located on the transmission shaft, with the boost pump service orientation is benchmark, pump case rear end internal fixation has deflecting plate, deflecting plate mainly is made of some breather vanes, breather vane is made up of flat segments and cambered surface section, flat segments and transmission shafts are to paralleling, cambered surface Duan Yiduan is connected with flat segments, the cambered surface section other end is near screw propeller, flat segments and cambered surface section are one, and breather vane is at least two, and some breather vanes are uniformly-spaced around the pump case center shaft to be arranged, breather vane is fixed in the pump case inside face away from an end of pump case center shaft, and some breather vane cambered surface sections on the transmission shaft hand of rotation towards unanimity.
Further technical scheme of the present utility model is:
Described cambered surface Duan Yiduan is connected with flat segments is tangent.
The number of described propeller blade and the number of breather vane satisfy the odd even relation.
Described breather vane is provided with four, and propeller blade is provided with three.
Described deflecting plate is provided with fixed cover, and breather vane is fixed in the outside face of fixed cover near an end of pump case center shaft.
Described fixed cover is a hollow, fixed cover towards the end in the external world for sealing and shape with the rectification cap, end towards transmission shaft is an opening, with the boost pump service orientation is benchmark, fixed cover inwall front portion radially outward is formed with first ladder, be lined with pad before first ladder, pad backstop is in first ladder, be provided with first ball bearing of main shaft before the pad, the first ball bearing of main shaft backstop is in pad, the transmission shaft not-go-end inserts in first ball bearing of main shaft, and the first ball bearing of main shaft front is provided with first oil sealing, described pad, first ball bearing of main shaft, the transmission shaft not-go-end and first oil sealing are positioned at fixed cover.Pad provides the shaft shoulder and has made things convenient for dismounting for first ball bearing of main shaft.
The structure that described screw propeller fixed cover is located on the transmission shaft is: screw propeller is positioned at pump case, and propeller center is provided with propeller hub, and the propeller hub inner surface axial is provided with female splines, and the transmission shaft outside face is axially arranged with male splines, and female splines and male splines fasten.Spline connects the load-carrying capacity height, and is good to neutrality and guidance quality, and little to the influence of transmission shaft and slurry hub, and easily assembling is not yielding.
With the boost pump service orientation is benchmark, and the rear end of described pump case is fixed with the reducing cover, and the reducing cover is hollow, and reducing cover front end is fixed in the pump case rear end, and reducing cover front inner diameter equals pump housing back end inside diameter, and reducing cover front inner diameter is overlapped back end inside diameter greater than reducing.Reducing cover front inner diameter is overlapped back end inside diameter greater than reducing, water flow section can be dwindled, and has increased water velocity under discharge unmodified situation, thereby has increased propelling thrust.
With the boost pump service orientation is benchmark, the pump case front end is fixed with the inlet segment of hollow cylindrical, the inlet segment center shaft is provided with the bracing ring of hollow, be provided with plurality of support, bracing ring is connected by plurality of support with inlet segment, stay bearing plate is at least two, plurality of support is that center shaft is and disperses distribution with the bracing ring, the bracing ring internal fixation has tapered roller bearing, transmission shaft is through in the tapered roller bearing, the rear and front end of tapered roller bearing all is provided with second oil sealing, and the inlet segment lower external face is provided with into water plate, and the water inlet plate is dull and stereotyped, before the water inlet prelaminar part is positioned at inlet segment, and the water inlet prelaminar part offers arc opening, is provided with two connecting panels, and connecting panel will intake and is connected with the left side of inlet segment front upper portion on the left of the prelaminar part, another piece connecting panel prelaminar part right side that will intake is connected with the right side of inlet segment front upper portion, the front end of connecting panel is an arc, and camber line is crooked backward, described inlet segment, bracing ring, stay bearing plate, water inlet plate and connecting panel are one.
Be provided with first and second flange, second flange is before first flange, transmission shaft is through in first and second flange simultaneously, the first flange front inner surface radially outward forms second ladder, be provided with the 3rd oil sealing before second ladder, the 3rd oil sealing stop is in second ladder, the second flange rear inner surface radially inwardly forms ring-type backstop, the anterior shoulder of transmission shaft is provided with second ball bearing of main shaft, the second ball bearing of main shaft stop is in ring-type backstop back, ring-type backstop front is provided with the 4th oil sealing, and first and second flange fixes (bottom that first flange is fixed in hull or surfboard etc.).
The beneficial effects of the utility model are: with the boost pump service orientation is benchmark, pump case rear end internal fixation has deflecting plate, deflecting plate mainly is made of some breather vanes, breather vane is made up of flat segments and cambered surface section, flat segments and transmission shafts are to paralleling, cambered surface Duan Yiduan is connected with flat segments, the cambered surface section other end is near screw propeller, flat segments and cambered surface section are one, breather vane is at least two, some breather vanes are uniformly-spaced around the pump case center shaft to be arranged, breather vane is fixed in the pump case inside face away from an end of pump case center shaft, and some breather vane cambered surface sections on the transmission shaft hand of rotation towards unanimity, this example can make current spray with straight line, improved thrust, and this example is simple in structure, easy to implement.
Description of drawings
Fig. 1 is the utility model sectional structure scheme drawing;
Fig. 2 is the utility model decomposition texture scheme drawing;
Fig. 3 is the utility model deflector structure scheme drawing;
Fig. 4 is the utility model breather vane structural representation.
The specific embodiment
Embodiment: a kind of boost pump, comprise screw propeller 1 and transmission shaft 2, the screw propeller fixed cover is located on the transmission shaft, with the boost pump service orientation is benchmark, pump case 3 rear end internal fixation have deflecting plate 4, deflecting plate mainly is made of some breather vanes 41, breather vane is made up of flat segments 411 and cambered surface section 412, flat segments and transmission shafts are to paralleling, cambered surface Duan Yiduan is connected with flat segments, the cambered surface section other end is near screw propeller, flat segments and cambered surface section are one, breather vane is at least two, some breather vanes are uniformly-spaced around the pump case center shaft arranges that breather vane is fixed in the pump case inside face away from an end of pump case center shaft, and some breather vane cambered surface sections on the transmission shaft hand of rotation towards consistent (be some breather vanes towards unanimity, and towards both can be identical with the transmission shaft hand of rotation, also can be opposite with the transmission shaft hand of rotation).
Described cambered surface Duan Yiduan is connected with flat segments is tangent.
The number of described propeller blade and the number of breather vane satisfy the odd even relation.
Described breather vane is provided with four, and propeller blade is provided with three.
Described deflecting plate is provided with fixed cover 42, and breather vane is fixed in the outside face of fixed cover near an end of pump case center shaft.
Described fixed cover is a hollow, fixed cover towards the end in the external world for sealing and shape with the rectification cap, end towards transmission shaft is an opening, with the boost pump service orientation is benchmark, fixed cover inwall front portion radially outward is formed with first ladder 421, be lined with pad 422 before first ladder, pad backstop is in first ladder, be provided with first ball bearing of main shaft 423 before the pad, the first ball bearing of main shaft backstop is in pad, transmission shaft not-go-end 21 inserts in first ball bearing of main shaft, and the first ball bearing of main shaft front is provided with first oil sealing 424, described pad, first ball bearing of main shaft, the transmission shaft not-go-end and first oil sealing are positioned at fixed cover.Pad provides the shaft shoulder and has made things convenient for dismounting for first ball bearing of main shaft.
The structure that described screw propeller fixed cover is located on the transmission shaft is: screw propeller is positioned at pump case, and propeller center is provided with propeller hub 11, and the propeller hub inner surface axial is provided with female splines, and the transmission shaft outside face is axially arranged with male splines, and female splines and male splines fasten.Spline connects the load-carrying capacity height, and is good to neutrality and guidance quality, and little to the influence of transmission shaft and slurry hub, and easily assembling is not yielding.
With the boost pump service orientation is benchmark, and the rear end of described pump case is fixed with reducing cover 5, and the reducing cover is hollow, and reducing cover front end is fixed in the pump case rear end, and reducing cover front inner diameter equals pump housing back end inside diameter, and reducing cover front inner diameter is overlapped back end inside diameter greater than reducing.Reducing cover front inner diameter is overlapped back end inside diameter greater than reducing, water flow section can be dwindled, and has increased water velocity under discharge unmodified situation, thereby has increased propelling thrust.
With the boost pump service orientation is benchmark, the pump case front end is fixed with the inlet segment 6 of hollow cylindrical, the inlet segment center shaft is provided with the bracing ring 61 of hollow, be provided with plurality of support, bracing ring is connected by plurality of support 62 with inlet segment, stay bearing plate is at least two, plurality of support is that center shaft is and disperses distribution with the bracing ring, the bracing ring internal fixation has tapered roller bearing 63, transmission shaft is through in the tapered roller bearing, the rear and front end of tapered roller bearing all is provided with second oil sealing 64, and the inlet segment lower external face is provided with into water plate 65, and the water inlet plate is dull and stereotyped, before water inlet prelaminar part 651 is positioned at inlet segment, and the water inlet prelaminar part offers arc opening, is provided with 66, connecting panels of two connecting panels and will intake and be connected with the left side of inlet segment front upper portion on the left of the prelaminar part, another piece connecting panel prelaminar part right side that will intake is connected with the right side of inlet segment front upper portion, the front end of connecting panel is an arc, and camber line is crooked backward, described inlet segment, bracing ring, stay bearing plate, water inlet plate and connecting panel are one.
Be provided with first, two flanges 7,8, second flange is before first flange, transmission shaft is through at first simultaneously, in two flanges, the first flange front inner surface radially outward forms second ladder 71, be provided with the 3rd oil sealing 72 before second ladder, the 3rd oil sealing stop is in second ladder, the second flange rear inner surface radially inwardly forms ring-type backstop 81, the anterior shoulder of transmission shaft is provided with second ball bearing of main shaft 82, the second ball bearing of main shaft stop is in ring-type backstop back, ring-type backstop front is provided with the 4th oil sealing 83, the first, two flanges fix (bottom that first flange is fixed in hull or surfboard etc.).
The axial centre that this routine described center shaft is parts.
Claims (10)
1, a kind of boost pump, comprise screw propeller (1) and transmission shaft (2), the screw propeller fixed cover is located on the transmission shaft, it is characterized in that: with the boost pump service orientation is benchmark, pump case (3) rear end internal fixation has deflecting plate (4), deflecting plate mainly is made of some breather vanes (41), breather vane is made up of flat segments (411) and cambered surface section (412), flat segments and transmission shafts are to paralleling, cambered surface Duan Yiduan is connected with flat segments, the cambered surface section other end is near screw propeller, flat segments and cambered surface section are one, and breather vane is at least two, and some breather vanes are uniformly-spaced around the pump case center shaft to be arranged, breather vane is fixed in the pump case inside face away from an end of pump case center shaft, and some breather vane cambered surface sections on the transmission shaft hand of rotation towards unanimity.
2, a kind of boost pump according to claim 1 is characterized in that: described cambered surface Duan Yiduan is connected with flat segments is tangent.
3, a kind of boost pump according to claim 1 is characterized in that: the number of described propeller blade and the number of breather vane satisfy the odd even relation.
4, a kind of boost pump according to claim 3 is characterized in that: described breather vane is provided with four, and propeller blade is provided with three.
5, a kind of boost pump according to claim 1 is characterized in that: described deflecting plate is provided with fixed cover (42), and breather vane is fixed in the outside face of fixed cover near an end of pump case center shaft.
6, a kind of boost pump according to claim 5, it is characterized in that: described fixed cover is a hollow, fixed cover towards the end in the external world for sealing and shape with the rectification cap, end towards transmission shaft is an opening, with the boost pump service orientation is benchmark, fixed cover inwall front portion radially outward is formed with first ladder (421), be lined with pad (422) before first ladder, pad backstop is in first ladder, be provided with first ball bearing of main shaft (423) before the pad, the first ball bearing of main shaft backstop is in pad, transmission shaft not-go-end (21) inserts in first ball bearing of main shaft, the first ball bearing of main shaft front is provided with first oil sealing (424), described pad, first ball bearing of main shaft, the transmission shaft not-go-end and first oil sealing are positioned at fixed cover.
7, a kind of boost pump according to claim 1, it is characterized in that: the structure that described screw propeller fixed cover is located on the transmission shaft is: screw propeller is positioned at pump case, propeller center is provided with propeller hub (11), the propeller hub inner surface axial is provided with female splines, the transmission shaft outside face is axially arranged with male splines, and female splines and male splines fasten.
8, a kind of boost pump according to claim 1, it is characterized in that: with the boost pump service orientation is benchmark, the rear end of described pump case is fixed with reducing cover (5), the reducing cover is hollow, reducing cover front end is fixed in the pump case rear end, reducing cover front inner diameter equals pump housing back end inside diameter, and reducing cover front inner diameter is overlapped back end inside diameter greater than reducing.
9, a kind of boost pump according to claim 1, it is characterized in that: with the boost pump service orientation is benchmark, the pump case front end is fixed with the inlet segment (6) of hollow cylindrical, the inlet segment center shaft is provided with the bracing ring (61) of hollow, be provided with plurality of support, bracing ring is connected by plurality of support (62) with inlet segment, stay bearing plate is at least two, plurality of support is that center shaft is and disperses distribution with the bracing ring, the bracing ring internal fixation has tapered roller bearing (63), transmission shaft is through in the tapered roller bearing, the rear and front end of tapered roller bearing all is provided with second oil sealing (64), the inlet segment lower external face is provided with into water plate (65), the water inlet plate is dull and stereotyped, before water inlet prelaminar part (651) is positioned at inlet segment, and the water inlet prelaminar part offers arc opening, be provided with two connecting panels (66), connecting panel prelaminar part left side that will intake is connected with the left side of inlet segment front upper portion, another piece connecting panel prelaminar part right side that will intake is connected with the right side of inlet segment front upper portion, the front end of connecting panel is an arc, and camber line is crooked backward, described inlet segment, bracing ring, stay bearing plate, water inlet plate and connecting panel are one.
10, a kind of boost pump according to claim 1, it is characterized in that: be provided with first, two flanges (7,8), second flange is before first flange, transmission shaft is through at first simultaneously, in two flanges, the first flange front inner surface radially outward forms second ladder (71), be provided with the 3rd oil sealing (72) before second ladder, the 3rd oil sealing stop is in second ladder, the second flange rear inner surface radially inwardly forms ring-type backstop (81), the anterior shoulder of transmission shaft is provided with second ball bearing of main shaft (82), the second ball bearing of main shaft stop is in ring-type backstop back, and ring-type backstop front is provided with the 4th oil sealing (83), first, two flanges fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820217710XU CN201292005Y (en) | 2008-11-10 | 2008-11-10 | Propulsion pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820217710XU CN201292005Y (en) | 2008-11-10 | 2008-11-10 | Propulsion pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201292005Y true CN201292005Y (en) | 2009-08-19 |
Family
ID=41005471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820217710XU Expired - Fee Related CN201292005Y (en) | 2008-11-10 | 2008-11-10 | Propulsion pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201292005Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734362A (en) * | 2008-11-10 | 2010-06-16 | 昆山市美吉动力机械科技有限公司 | Boost pump |
| CN102285441A (en) * | 2011-07-18 | 2011-12-21 | 中国人民解放军63983部队 | Axial flow water jet propulsion pump |
| CN103287560A (en) * | 2013-06-27 | 2013-09-11 | 穆军 | Turboprop reverse pressurization water-jet propeller |
| CN105545816A (en) * | 2016-01-29 | 2016-05-04 | 扬州大学 | Linear gradually-shrunk transition round nozzle of water spraying propelling pump device |
-
2008
- 2008-11-10 CN CNU200820217710XU patent/CN201292005Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734362A (en) * | 2008-11-10 | 2010-06-16 | 昆山市美吉动力机械科技有限公司 | Boost pump |
| CN102285441A (en) * | 2011-07-18 | 2011-12-21 | 中国人民解放军63983部队 | Axial flow water jet propulsion pump |
| CN103287560A (en) * | 2013-06-27 | 2013-09-11 | 穆军 | Turboprop reverse pressurization water-jet propeller |
| CN105545816A (en) * | 2016-01-29 | 2016-05-04 | 扬州大学 | Linear gradually-shrunk transition round nozzle of water spraying propelling pump device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20131110 |