CN2104326U - Double-cavity sliding eccentric pump - Google Patents
Double-cavity sliding eccentric pump Download PDFInfo
- Publication number
- CN2104326U CN2104326U CN 91209857 CN91209857U CN2104326U CN 2104326 U CN2104326 U CN 2104326U CN 91209857 CN91209857 CN 91209857 CN 91209857 U CN91209857 U CN 91209857U CN 2104326 U CN2104326 U CN 2104326U
- Authority
- CN
- China
- Prior art keywords
- sleeve rotor
- eccentric
- slide body
- track ring
- oil
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 9
- 239000010720 hydraulic oil Substances 0.000 abstract 2
- 239000003921 oil Substances 0.000 abstract 2
- 230000010349 pulsation Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Images
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- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model relates to a two-chamber eccentric pump that slides, it mainly comprises casing, stator ring, hollow rotor, the slider body and by the screw rod, the automatic pressure regulating device that the spring constitutes. The hydraulic oil pump is characterized in that two hydraulic cavities with equal size and mutual complementation exist, and the two hydraulic cavities are respectively used as oil sealing surfaces, so the hydraulic oil pump has the characteristics of output flow, large limit range of pressure, no pulsation in oil transportation, suitability for working at high speed, ultralow speed and under the condition of liquid with different viscosities, and simple structure.
Description
The utility model relates to a kind of sliding eccentric oil hydraulic pump of two-chamber that is widely used in hydraulic machinery or carries different viscosities liquid.
Present oil hydraulic pump has plunger pump, vane pump, screw pump etc.Its main deficiency is: volumetric efficiency is low, complex structure, manufacturability is poor, the manufacturing difficulty, and the transfusion pulsating nature is big, noise is big, the scope that is stressed and fluid viscosity to oil pump require height, and versatility is low and component dotted line position relative movement is more with Elastic Contact, and sealing and motion credibility are poor, therefore mechanical efficiency is low, the cost height.
The purpose of this utility model is, designs a kind of simple in structurely, and the lit range of output flow and pressure is big, pulsating movement free, be applicable at a high speed, the oil hydraulic pump of working under the liquid situation of Ultra-Low Speed and different viscosities.
Technical solution of the present utility model is: the track ring 17 of packing in housing 16, again slide body 4 is packed in the track ring 17, then with sleeve rotor 1 and two semicylinders 10 matching with it, 11 pack in the track ring 17, and the center (or center of the center of track ring 17 or slide body 4) that makes 1 pair of housing 16 of sleeve rotor produces eccentric, its throw of eccentric is l, the arc section 12 and 2 that has one section energy and sleeve rotor 1 corresponding cylndrical surface to coincide on the internal face 21 of track ring 17 annular chambers and the outer wall 22 respectively, because it is eccentric, sleeve rotor 1 corresponding two cylndrical surface match with arc section 2 and 12 respectively and produce two oil sealing surfaces 2 and 12, thereby the hydraulic pressure cavity 3 and the hydraulic pressure cavity 5 of external sealed in forming, and the volume of hydraulic pressure cavity 3 and hydraulic pressure cavity 5 is equated.
The utility model at existing oil hydraulic pump by housing, track ring, oil inlet and outlet, main shaft reach by adjusting screw rod, on the basis that the automatic Regulation that spring constitutes is partly formed, improved the structure of track ring, made it have an annular chamber, and made the arc section that respectively has one section energy and the corresponding cylndrical surface of sleeve rotor to coincide on the inside and outside wall of annular chamber, because such structure, as oil sealing surface, its reliability and tightness are good by face for formed two hydraulic pressure cavity, and pressure and rotating speed are applied widely; On the other hand, in a work cycle, hydraulic pressure cavity 3 and hydraulic pressure cavity 5 are replenished all the time mutually, and its volume equates, so pulsating movement free phenomenon during output liquid; While the utility model also has simple in structure, is applicable to the characteristics of the working environment of different viscosities liquid.
Following accompanying drawing has been described an embodiment of the present utility model.
Fig. 1 is the utility model structure diagram;
Fig. 2 is a stator ring structure figure plan view;
Fig. 3 is a stator ring structure figure left view;
Fig. 4 is a sleeve rotor structural drawing plan view;
Fig. 5 is a sleeve rotor structural drawing left view;
Fig. 6 is a slide body structural drawing plan view;
Fig. 7 is a slide body structural drawing left view.
Among the figure: the 1-sleeve rotor, 2-hydraulic pressure cavity oil sealing surface (arc section), the hydraulic pressure cavity that forms when the 3-sleeve rotor cooperates with track ring, 4-slide body, the hydraulic pressure cavity that forms when the 5-sleeve rotor cooperates with track ring, 6,7,8,9-oil-feed and oil outlet, 10, the 11-semicylinder, 12-hydraulic pressure cavity oil sealing surface (arc section), 13-spring, 14-adjusts screw rod, 15-adjusts screw rod, 16-housing, 17-track ring, semicylindrical opening surface in the 18-sleeve rotor wall, the horizontal mobile guide groove of 19-track ring, 20-main shaft, 21-track ring internal face, 22-track ring outer wall, 23-track ring annular chamber.
If with sleeve rotor 1 as power rotor, when sleeve rotor 1 is pressed among Fig. 1 clockwise direction shown in the arrow and is rotated, because cooperation place at slide body 4 and sleeve rotor 1, two half-cylindrical holes are arranged on sleeve rotor 1 wall, semicylinder 10 and 11 are housed in the hole, the blocks of slide body 4 and sleeve rotor 1 are by two semicylinders 10,11 closely cooperate, each surface of contact of cooperation place is fluid side, sleeve rotor 1 drives slide body 4 and rotates, blocks on the slide body 4 is divided into zone of high pressure and low pressure area in hydraulic pressure cavity 3 and hydraulic pressure cavity 5, with liquid respectively from 6,9 two liquid holes suck, again from 7,8 two liquid hole outputs realize the action of pump oil.When sleeve rotor 1 rotates, because the off-centre of itself and the pump housing, slide body 4 can produce swing in the wall of sleeve rotor 1, this eccentric swing can be realized the coordinated movement of various economic factors of sleeve rotor 1 and slide body 4 by the little commentaries on classics in the arc surface of semicylinder 10 and 11 in the sleeve rotor wall.The delivery pressure of pump, can by adjust nut 14 and 15 and pressure spring 13 coordinate.When system pressure surpassed institute's pressure regulation power, track ring 17 was stressed, with spring 13 compressions, and micro throw of eccentric l, the height nip is communicated with, and pump i.e. suction liquid no longer, realizes overload protection thus.
According to the service condition difference, also optional slide body 4 is as power rotor, and the direction of rotation also can change because of needs.
Claims (2)
1, a kind of two-chamber slippage eccentric driven pump, by housing 16, track ring 17, oil-feed oil outlet 6,7,8,9, main shaft 20 reaches by adjusting screw rod 14,15, the automatic Regulation that spring 13 constitutes partly constitutes, it is characterized in that: track ring 17 has an annular chamber, one section arc section 12 and 2 that can coincide with sleeve rotor 1 corresponding cylndrical surface is respectively arranged on the inwall 21 of annular chamber and the outer wall 22, the slide body 4 that sleeve rotor 1 is housed in the annular chamber and cooperates and rotate synchronously with sleeve rotor 1,17 of sleeve rotor 1 and track rings have a throw of eccentric L, because it is eccentric, the corresponding cylndrical surface of sleeve rotor 1 and the arc section of track ring 17 2 and 12 match, and produce two oil sealing surfaces 2 and 12, thereby form two isometric hydraulic pressure cavity 3 that complement each other and hydraulic pressure cavity 5.
2, eccentric driven pump according to claim 1, the cooperation place that it is characterized in that slide body 4 and sleeve rotor 1, two half-cylindrical holes are arranged on sleeve rotor 1 wall, semicylinder 10 and 11 are housed in the hole, the blocks of slide body 4 and sleeve rotor 1 closely cooperate by two semicylinders 10,11, each surface of contact of cooperation place is fluid side, forms a forward joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91209857 CN2104326U (en) | 1991-06-06 | 1991-06-06 | Double-cavity sliding eccentric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91209857 CN2104326U (en) | 1991-06-06 | 1991-06-06 | Double-cavity sliding eccentric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2104326U true CN2104326U (en) | 1992-05-13 |
Family
ID=41785990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91209857 Granted CN2104326U (en) | 1991-06-06 | 1991-06-06 | Double-cavity sliding eccentric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2104326U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009121250A1 (en) * | 2008-04-01 | 2009-10-08 | Ben Mingxin | A positive-displacement mechanism for a rotary fluid machine |
| CN101341339B (en) * | 2005-08-02 | 2010-05-26 | 皮尔博泵技术意大利公司 | Double-adjustment variable-eccentricity impeller pump |
-
1991
- 1991-06-06 CN CN 91209857 patent/CN2104326U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101341339B (en) * | 2005-08-02 | 2010-05-26 | 皮尔博泵技术意大利公司 | Double-adjustment variable-eccentricity impeller pump |
| WO2009121250A1 (en) * | 2008-04-01 | 2009-10-08 | Ben Mingxin | A positive-displacement mechanism for a rotary fluid machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |