CN200996365Y - Oil pump - Google Patents
Oil pump Download PDFInfo
- Publication number
- CN200996365Y CN200996365Y CN 200720031017 CN200720031017U CN200996365Y CN 200996365 Y CN200996365 Y CN 200996365Y CN 200720031017 CN200720031017 CN 200720031017 CN 200720031017 U CN200720031017 U CN 200720031017U CN 200996365 Y CN200996365 Y CN 200996365Y
- Authority
- CN
- China
- Prior art keywords
- piston
- oil
- pump
- rotor
- crankshaft
- 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
Links
- 238000007599 discharging Methods 0.000 description 7
- 238000000605 extraction Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
一种油泵，其特征是在转子(6)的垂直方向和水平方向的活塞腔(7)内各设有一个活塞(4)，这两个活塞均穿接在曲轴(9)上，活塞依靠曲轴的驱动在转子的活塞腔内做往复运动，活塞的两个端面与泵体(5)之间交替形成吸油腔和排油腔。该泵结构设计新颖，机械效率高，噪音小，使用寿命长，除单台使用外还可多台并联配置，以提高工作效率。
An oil pump, which is characterized in that a piston (4) is provided in the vertical and horizontal piston chambers (7) of the rotor (6), and the two pistons are connected to the crankshaft (9), and the pistons rely on The drive of the crankshaft reciprocates in the piston chamber of the rotor, and the two end faces of the piston and the pump body (5) alternately form an oil suction chamber and an oil discharge chamber. The pump has novel structure design, high mechanical efficiency, low noise and long service life. In addition to single use, multiple parallel configurations can be used to improve work efficiency.
Description
Technical field
The utility model relates to a kind of oil pump.
Background technique
In the existing positive displacement pump, except that plunger pump, the pumping cavity of all the other pumps all has the line contact sealing place, as gear pump in the flank profil engagement place, vane pump has friction mutually in blade and pump housing contacting point etc. between them, the suction capacity of pump is not strong, oil drain quantity is little, and is easy to damage, and working life is not long.And plunger pump is because reasons in structure, and it is higher pair (being the line contact) or sliding pair that driven plunger is pressed the kinematic pair of oil motion, and its bearing capacity is lower, mechanical efficiency is also low, what driven plunger oil suction campaign was leaned on is the elastic force of spring, so the suction capacity of pump is no more than gear pump.
Summary of the invention
The technical problems to be solved in the utility model is for overcoming the deficiencies in the prior art, provide a kind of oil drain quantity big, and friction reduces, mechanical efficiency height, the oil pump that running noise is low.
The technical solution that realizes the foregoing invention purpose is:
In the piston cavity of the Vertical direction of rotor and substantially horizontal, respectively be provided with a piston, these two equal cross-under of piston are on bent axle, piston relies on the driving of bent axle to move reciprocatingly in the piston cavity of rotor, alternately forms oil sucting cavity and oil-discharging cavity between two end faces of piston and the pump housing.
Its further technical solution is:
The radially orthogonal setting of said two relative rotors of piston cavity.
Piston is connected with bent axle by axle sleeve, also is connected with block on the plane of piston.
Be equipped with bearing between the two ends of rotor and the pump housing.
The technique effect that the utility model produced is:
The volume of suction, oil-discharging cavity is by 0-4L
ABA changes, and compares with slidercrank mechanism, and relative travel is 4 times of crank length, and under equal conditions physical dimension is less; Two ends one end of piston is an oil sucting cavity, and then the other end is an oil-discharging cavity just, and suction, oil extraction are carried out simultaneously, and the mechanism driving angle is always 90 °, so the mechanical efficiency height; Compare with gear pump have identical suction, the oil extraction process, and suction capacity is better than gear pump during low-speed running, oil drain quantity is big; The rotating speed of oil sucting cavity only is half of gear pump, and under the same conditions, it is strong that fluid fills the chamber ability, and do not have entrap phenomenon.This pump need not special oil distribution mechanism, has just formed oil distribution mechanism into and out of hydraulic fluid port itself on the pump housing; With regard to motion of center of mass, the barycenter of all members is made the fixed point constant speed to the pump housing and is rotated, and all kinematic pair are lower pair, the bearing capacity height.Prove that through the model machine operation test noise is well below gear pump, it is quite steady to turn round.Owing to catch portion and axle sleeve and bearing have been installed by the crank place at the bent axle head, form oil clearance and all carry, successfully solved the interference that causes because of foozle when same mechanism evenly is arranged in parallel.Also, significantly reduced the friction in the kinematic pair, improved mechanical efficiency because the rolling bearing structure is adopted in many places.
This pump can in, low pressure, the use occasion of big flow replaces gear pump to be used as oil hydraulic pump using, can use as oil hydraulic motor under the same conditions.Also have function of measuring when using simultaneously concurrently, use as big volume flow formula accurate measurement instrument and also can bring bigger social economic benefit as high-capacity pump.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is suction, oil extraction process schematic representation.
Fig. 4 is the rotor structure schematic representation.
Fig. 5 is the piston structure schematic representation.
Embodiment
As shown in Figure 1 and Figure 2, this pump has a pump housing 5, and the two ends of the pump housing 5 are sealed by end cap, and the circumferential surface of a cylindrical body rotor 6 (referring to Fig. 4) rolls with the inner headed face of the pump housing 5 and contacts.On this rotor 6, it radially is provided with two piston cavity 7 in that Vertical direction and substantially horizontal are orthogonal relatively, and a piston 4 all is set in each piston cavity 7.Bent axle 9 is axially penetrated by rotor 6, and two pistons 4 of cross-under simultaneously, and the inner of bent axle 9 links to each other with end cap with rolling bearing 10 by axle sleeve 11, is provided with needle roller outer ring 3 and needle roller components 12 between piston 4 and bent axle 9.Be provided with bearing 8 between rotor 6 two ends and the pump housing 5.Also be provided with briquetting 1 on the end face of piston 4, by screw 2 briquetting 1 fixedlyed connected with piston 4, purpose is to stop needle roller components 12 and needle roller outer ring 3 that axial displacement takes place.
Referring to Fig. 5, said piston 4 approximate cylindrical bodys, its axial cross section is the I font, remaining part is curved surface except both sides are the plane.Fixing the briquetting 1 that can block needle roller components 12 and needle roller outer ring 3 by screw 2 on this plane, bent axle 9 and needle roller components 12 and needle roller outer ring 3 penetrate from the circular hole 13 of piston 4.
When bent axle 9 is driven by external force and when rotating, driving piston 4 also to rotate in the same way, drive rotor 6 simultaneously and in the pump housing 5, move.Because the wobbler action of bent axle 9, it is reciprocating in the piston cavity 7 at rotor 6 again when self rotates to order about piston 4, alternately forms oil sucting cavity and oil-discharging cavity thereby make between the relative pump housing 5 in two terminations of piston 4.If establishing the cross section of piston 4 is A, under the situation that rotor 6 rotates continuously, the volume of piston 4 two ends cavitys is all at 0-4L
ABChange between the A, the volume of oil sucting cavity then is 4L when the oil-discharging cavity volume is 0
ABA reaches maximum; When continuing revolution, oil-discharging cavity originally changes oil sucting cavity into and original oil sucting cavity becomes oil-discharging cavity (referring to Fig. 3).Continuously hocket simultaneously oil extraction and oil suction like this, and the transmission angle of this mechanism is always 90 °, so can improve its mechanical efficiency greatly.
Certainly, this structure is not limited to separate unit and uses, and can also many combinations evenly be arranged in parallel, and not only can make this mechanism smoothly by the dead center position, but also can reduce the pulsating nature that fluid flows.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720031017 CN200996365Y (en) | 2007-01-09 | 2007-01-09 | Oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720031017 CN200996365Y (en) | 2007-01-09 | 2007-01-09 | Oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200996365Y true CN200996365Y (en) | 2007-12-26 |
Family
ID=38994796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720031017 Expired - Fee Related CN200996365Y (en) | 2007-01-09 | 2007-01-09 | Oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200996365Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461320A (en) * | 2017-08-29 | 2017-12-12 | 海斯比得（武汉）石油科技有限公司 | Positive displacement pump and extracting device of oil |
| CN107917063A (en) * | 2017-12-07 | 2018-04-17 | 海斯比得（武汉）石油科技有限公司 | Power set and oil extraction system |
-
2007
- 2007-01-09 CN CN 200720031017 patent/CN200996365Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461320A (en) * | 2017-08-29 | 2017-12-12 | 海斯比得（武汉）石油科技有限公司 | Positive displacement pump and extracting device of oil |
| WO2019041681A1 (en) * | 2017-08-29 | 2019-03-07 | 海斯比得（武汉）石油科技有限公司 | Positive-displacement pump and oil production device |
| CN107917063A (en) * | 2017-12-07 | 2018-04-17 | 海斯比得（武汉）石油科技有限公司 | Power set and oil extraction system |
| CN107917063B (en) * | 2017-12-07 | 2023-10-13 | 海斯比得（武汉）石油科技有限公司 | Power device and oil extraction system |
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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: 20071226 Termination date: 20100209 |