CN100507273C - End-face helical pump - Google Patents
End-face helical pump Download PDFInfo
- Publication number
- CN100507273C CN100507273C CNB2007101393510A CN200710139351A CN100507273C CN 100507273 C CN100507273 C CN 100507273C CN B2007101393510 A CNB2007101393510 A CN B2007101393510A CN 200710139351 A CN200710139351 A CN 200710139351A CN 100507273 C CN100507273 C CN 100507273C
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- CN
- China
- Prior art keywords
- moving plate
- helical
- eccentricity axle
- price fixing
- movable plate
- 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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Abstract
The present invention discloses a hydraulic pump, in particular to the hydraulic pump adopting an Archimedes spiral. The present invention is characterized in that a movable plate (3) and two fixed plates (2) are arranged in a casing body (1), wherein the fixed plates (2) are arranged on the both sides of the movable plate (3), a big eccentric axle (4) is arranged at the central hole, the movable plate (3) is arranged oppositely to the eccentric part of the big eccentric axle (4), and the same Archimedes spirals are alternatively processed on the both sides of the movable plate (3) and the side toward the two fixed plates (2), which are mutually meshed; an oil through hole (11) is arranged on the movable plate (3) and the fixed plates (2). The present invention is a hydraulic power element of new type, novel structure and high efficiency.
Description
Technical field
The present invention relates to a kind of oil hydraulic pump, especially a kind of oil hydraulic pump that adopts Archimedes spiral.
Technical background
Oil hydraulic pump is used widely in all transmission device as the dynamical element of hydraulic system.Applied oil hydraulic pump has gear pump, vane pump, plunger pump isometric(al) formula pump in hydraulic system at present, but these oil hydraulic pumps all exist processing technology complexity, required precision than problems such as height.Wherein, gear pump structure is simple, but internal leakage is serious, and volumetric efficiency is lower; The plunger pump volumetric efficiency is higher, but complex structure, difficulty of processing is very big, and noise is bigger, influences its cost performance so greatly; Vane pump processing technology more complicated, internal leakage are also relatively more serious, and these have all influenced the application of these dynamical elements.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention proposes a kind of end-face helical pump, it realizes the oil suction and the oil extraction of oil hydraulic pump by the size that changes two areas that Archimedes spiral surrounded, and is a kind of novel, novel structure, high efficiency Hydraulic power units.
The technological scheme that the present invention proposes is: a kind of end-face helical pump, form by housing, seal ring, radial ball bearing and end cap, described housing is provided with filler opening and oil outlet, Moving plate and two price fixings are installed in the described housing, and wherein, price fixing is installed in the both sides of Moving plate, the central hole of Moving plate is equipped with the large eccentricity axle, the corresponding Moving plate of installing of the eccentric part of large eccentricity axle, the Moving plate both sides all interlock towards a side of Moving plate with two price fixings and are processed with identical Archimedes spiral, and intermesh; Be equipped with oil through on described Moving plate and the price fixing.
In addition, described Archimedes spiral, the helical pitch of its helical is greater than 2 times of the thickness of helical, and every interlock mutually a pair of all is 180 ° of phase angles and installs.Be processed with mounting hole on the described Moving plate, also be processed with mounting hole on the price fixing relevant position, in these two holes the small eccentricity axle is installed; Described small eccentricity axle equates with the throw of eccentric of large eccentricity axle.
This technological scheme has characteristics such as structure and processing technology are simple, volumetric efficiency is high, pulsation is little, low noise, rotor weight is light, an inertia that rotates is little, is a kind of novel, novel structure, high efficiency Hydraulic power units.
Description of drawings
Be that the present invention is further described in conjunction with the accompanying drawings below.
Fig. 1 is the end-face helical pump whole-cutaway view;
Fig. 2 is an end-face helical pump A-A view;
Fig. 3 is the Moving plate plan view.
Embodiment
As shown in Figure 1, 2, end-face helical pump is made up of housing 1, price fixing 2, Moving plate 3, large eccentricity axle 4, seal ring 5, radial ball bearing 6 and end cap 7, all stud with Archimedes spiral bar identical, that certain thickness and height are arranged on the two sides of Moving plate 3 and a side of two price fixings 2, the helical pitch of helical is greater than 2 times of the thickness of helical, under the certain condition of helical thickness, helical pitch is big more, helical is high more, and the output flow of oil hydraulic pump is big more.Large eccentricity axle 4 is contained in the center hole of Moving plate, and large eccentricity axle 4 can freely rotate in the center hole of Moving plate 3.Just drive the translation that Moving plate 3 is done does not have rotation when large eccentricity axle 4 rotates under the restriction of price fixing 2 Archimedes spiral, the Archimedes spiral on Moving plate 3 and the price fixing 2 is by 180 ° of installations, and the throw of eccentric of large eccentricity axle 4 is (helical pitch-2 thickness)/2.Center hole on the Moving plate 3 and large eccentricity axle 4 match, Archimedes spiral on the Moving plate 3 is divided into two airtight region S having point and the point on inner edge on the outside to contact (differ 180 °) with price fixing 2 corresponding points under the effect of large eccentricity axle 4 all the time at 2 with price fixing 2
1With S
2, S
1+ S
2All the time be certain value.When large eccentricity axle 4 rotated, Moving plate 3 is done under the effect of large eccentricity axle 4 did not have the translation of rotating, thereby continuous rotation of two point of contact of moving-wire and alignment makes S
1With S
2All change S
1Diminish S
2Become big, so just make S
2Become the oil suction district, S
1Become laminated oil zone.Near point of contact, also can form dynamic pressure support, reduce the wearing and tearing of two Archimedes spiral.The Archimedes spiral of this pump and Moving plate 3 and price fixing 2 can be made of one, but comparatively reasonable plan should be inserted.All like this plane processing all become very easy, the also available cold roll forming of the processing of Archimedes spiral bar, and then fine finishing.Archimedes spiral also can slide up and down in Moving plate 3 and price fixing 2 spiral chutes, so just can change the Archimedes spiral height, thereby changes the size of the flow that this oil hydraulic pump exports.
The translation of rotating for the nothing of anti-arresting disc, between Moving plate 3 and price fixing 2, added a small eccentricity axle 8 in addition, the throw of eccentric of its throw of eccentric and large eccentricity axle 4 equates, and small eccentricity axle 8 mounting holes of Moving plate 3 are equal to the distance at price fixing 2 centers to small eccentricity axle 8 mounting holes on Moving plate 3 centers and the price fixing 2, so just form a parallel-crank mechanism, thereby guaranteed the nothing rotation translation of Moving plate 3 on price fixing 2.
In the present embodiment, oil hydraulic pump Archimedes spiral equation is F (t)=(1/30) * t+25 (15 °≤t≤525 °), wherein,
Thickness 3mm, height 4mm, helical pitch 12mm,
Flow Q=15L/min, pressure P=7Mpa, rotating speed V=1400r/min,
Input power N=2.2KW.
Claims (3)
1, a kind of end-face helical pump, by housing (1), seal ring (5), radial ball bearing (6) and end cap (7) are formed, described housing (1) is provided with filler opening (9) and oil outlet (10), it is characterized in that: Moving plate (3) and two price fixings (2) are installed in the described housing (1), wherein, price fixing (2) is installed in the both sides of Moving plate (3), the central hole of Moving plate (3) is equipped with large eccentricity axle (4), the corresponding Moving plate (3) of installing of the eccentric part of large eccentricity axle (4), Moving plate (3) both sides all interlock towards a side of Moving plate (3) with two price fixings (2) and are processed with identical Archimedes spiral, and intermesh; Be equipped with oil through (11) on described Moving plate (3) and the price fixing (2).
2, end-face helical pump according to claim 1 is characterized in that: described Archimedes spiral, the helical pitch of its helical be greater than 2 times of the thickness of helical, and every interlock mutually a pair of all is 180 ° of phase angles and installs.
3, end-face helical pump according to claim 1 and 2 is characterized in that: described Moving plate is processed with mounting hole on (3), and price fixing (2) also is processed with mounting hole on the relevant position, in these two holes small eccentricity axle (8) is installed; Described small eccentricity axle (8) equates with the throw of eccentric of large eccentricity axle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101393510A CN100507273C (en) | 2007-09-07 | 2007-09-07 | End-face helical pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101393510A CN100507273C (en) | 2007-09-07 | 2007-09-07 | End-face helical pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101117957A CN101117957A (en) | 2008-02-06 |
| CN100507273C true CN100507273C (en) | 2009-07-01 |
Family
ID=39054189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101393510A Expired - Fee Related CN100507273C (en) | 2007-09-07 | 2007-09-07 | End-face helical pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100507273C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757437B (en) * | 2018-05-15 | 2019-08-06 | 河北昊方新能源科技有限公司 | Vortex oil pump |
-
2007
- 2007-09-07 CN CNB2007101393510A patent/CN100507273C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 代数阿基米德螺旋涡旋型线的研究. 邵兵，王训杰，田玉恒，刘涛，刘振全.兰州理工大学学报，第30卷第5期. 2004 |
| 代数阿基米德螺旋涡旋型线的研究. 邵兵，王训杰，田玉恒，刘涛，刘振全.兰州理工大学学报，第30卷第5期. 2004 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101117957A (en) | 2008-02-06 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20090701 |