CN109751236B - Symmetrical double-screw rotor for axial sliding vane pump - Google Patents
Symmetrical double-screw rotor for axial sliding vane pump Download PDFInfo
- Publication number
- CN109751236B CN109751236B CN201910233366.6A CN201910233366A CN109751236B CN 109751236 B CN109751236 B CN 109751236B CN 201910233366 A CN201910233366 A CN 201910233366A CN 109751236 B CN109751236 B CN 109751236B
- Authority
- CN
- China
- Prior art keywords
- rotor
- containing cavity
- connecting plate
- cavity
- sliding vane
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
Abstract
The invention discloses a symmetrical double-screw rotor for an axial sliding vane pump, which comprises a water outlet, a machine seat, a water inlet, a bearing mounting hole, a key groove, a first containing cavity, a second containing cavity, a connecting plate, a poking piece, a third containing cavity, a fourth containing cavity and a bearing fixing ring. The beneficial effects of the invention are as follows: this axial is symmetry double helix rotor for sliding vane pump reasonable in design, the connecting plate both sides are equipped with holds the chamber, and the both sides hold the chamber and be symmetrical installation, adopt double helix curved surface design, can reduce the axial tolerance, the connecting plate is installed at the frame center with the double helix rotor that holds the chamber and constitute, be convenient for carry the delivery port with the medium of water inlet, the double helix rotor both sides are fixed through the pump cover, the axis of rotation passes the bearing mounting hole and is the rotation with both sides pump cover center and is connected, realize the seal of the pump body through the pump cover, and the pivot provides pivoted power for the rotor, rotor both ends angle of wrap is 170 degrees-175 degrees, improve the sealing performance in high pressure and low pressure appearance chamber clearance.
Description
Technical Field
The invention relates to a double-screw rotor, in particular to a symmetrical double-screw rotor for an axial sliding vane pump, and belongs to the technical field of rotor pumps.
Background
The present sliding vane pump mainly refers to a radial sliding vane pump, which is composed of a rotor, a stator, sliding vanes and cover plates at two sides, and a rotary pump for conveying or pressurizing liquid by means of the change of working volume formed between a pump cylinder and two adjacent blades on the rotor when the eccentric rotor rotates.
The existing sliding vane pump has the defects that the self-priming performance of the sliding vane pump is poorer than that of a gear pump, the requirement on oil absorption conditions is strict, the rotating speed range of the sliding vane pump is required to be 500-1500 r/min, the sliding vane pump is sensitive to oil pollution, the vane is easy to be bitten by impurities in oil, the working reliability is poor, the structure is complex, parts are easy to wear, the requirement on the manufacturing precision of the parts is high, and the price is high.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a symmetrical double helical rotor for an axial sliding vane pump.
The invention realizes the above purpose through the following technical scheme: the symmetrical double-screw rotor for the axial sliding vane pump comprises a water outlet, a machine seat, a water inlet, a bearing mounting hole, a key slot, a first containing cavity, a second containing cavity, a connecting plate, a poking piece, a third containing cavity, a fourth containing cavity and a bearing fixing ring; the water outlet is arranged above the machine base, the water outlet is in an internal communication state with the machine base, the water inlet is arranged below the machine base, the water inlet is in a communication state with the interior of the machine base, the bearing mounting hole is arranged in the middle of the bearing fixing ring, the key slot is arranged in the bearing mounting hole, the first cavity is arranged on the connecting plate, the second cavity is arranged on the connecting plate, the third cavity is arranged on the connecting plate, the fourth cavity is arranged on the connecting plate, the shifting piece is arranged at the highest position of the cavity, and the bearing fixing ring is arranged in the middle of the connecting plate.
Preferably, in order to reduce ring leakage and improve the flow of the pump, the closed cavity is composed of a first cavity, a second cavity, a third cavity and a fourth cavity.
Preferably, in order to facilitate reducing the axial stress of the shaft and prolonging the service life, the two sides of the connecting plate are provided with the accommodating cavities which are symmetrically arranged.
Preferably, in order to facilitate the water flow from the water inlet to the water outlet, the double-screw rotor formed by the connecting plate and the accommodating cavity is arranged in the center of the machine base.
Preferably, in order to facilitate the operation of driving the rotor through the rotating shaft, two sides of the double-screw rotor are fixed through the pump cover, and the rotating shaft penetrates through the bearing mounting hole to be in rotary connection with the centers of the pump covers at two sides.
Preferably, in order to locate the rotating shaft, the key groove has a square key groove with a depth of 5 mm.
Preferably, in order to improve the sealing performance of the high-pressure and low-pressure cavity gaps, the wrap angles of the two ends of the rotor are 170-175 degrees.
The beneficial effects of the invention are as follows: this axial is symmetrical double helix rotor reasonable in design for sliding vane pump, it is by holding the chamber to seal the chamber, hold the chamber No. two, no. three holds the chamber and No. four holds the chamber to constitute, adopt the sealed chamber that four hold the chamber to constitute can make the pump body reduce the leakage of medium at the during operation, improve the flow of pump, the connecting plate both sides are equipped with holds the chamber, and both sides hold the chamber and be symmetrical installation, adopt double helix curved surface design, make the axial atress reduce on the half appearance, both can reduce axial bearing capacity, can improve life again, the connecting plate is installed at the frame center with the double helix rotor that holds the chamber and constitute, be convenient for carry the medium of water inlet to the delivery port, the double helix rotor both sides are fixed through the pump cover, the axis of rotation is connected in rotation through the pump cover realization pump body's seal, and the pivot provides pivoted power for the rotor, the keyway degree of depth is 5 mm's square keyway, play the effect of location for the axle of installing at the bearing mounting hole, rotor wrap angle is 170 degrees-175 degrees, in order to improve the sealing performance in high pressure and low pressure chamber clearance.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a frame of the present invention;
FIG. 3 is a schematic view of a double helical rotor of the present invention;
FIG. 4 is a schematic view of a structural chamber of the present invention.
In the figure: 1. the water outlet, 2, the machine seat, 3, the water inlet, 4, the bearing mounting hole, 5, the keyway, 6, the first holding cavity, 7, the second holding cavity, 8, the connecting plate, 9, the plectrum, 10, the third holding cavity, 11, the fourth holding cavity and 12, the bearing fixing ring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 4, a symmetrical double-screw rotor for an axial sliding vane pump comprises a water outlet 1, a machine base 2, a water inlet 3, a bearing mounting hole 4, a key slot 5, a first containing cavity 6, a second containing cavity 7, a connecting plate 8, a poking plate 9, a third containing cavity 10, a fourth containing cavity 11 and a bearing fixing ring 12; the water outlet 1 is arranged above the machine base 2, the water outlet 1 and the machine base 2 are in an internal communication state, the water inlet 3 is arranged below the machine base 2, the water inlet 3 and the interior of the machine base 2 are in a communication state, the bearing mounting hole 4 is arranged in the middle of the bearing fixing ring 12, the key slot 5 is arranged in the bearing mounting hole 4, the first cavity 6 is arranged on the connecting plate 8, the second cavity 7 is arranged on the connecting plate 8, the third cavity 10 is arranged on the connecting plate 8, the fourth cavity 11 is arranged on the connecting plate 8, the poking plate 9 is arranged at the highest position of the cavities, and the bearing fixing ring 12 is arranged in the middle of the connecting plate 8.
The sealed containing cavity is composed of a containing cavity 6, a containing cavity 7, a containing cavity 10 and a containing cavity 11, the sealed containing cavity composed of four containing cavities can reduce leakage quantity of media during operation of a pump body and improve flow of the pump, containing cavities are arranged on two sides of the connecting plate 8, the containing cavities on two sides are symmetrically installed, double-spiral curved surface design is adopted, axial stress is reduced by one half, axial bearing capacity can be reduced, service life can be prolonged, a double-spiral rotor composed of the connecting plate 8 and the containing cavities is installed at the center of the base 2, media of the water inlet 3 are conveniently conveyed to the water outlet 1, two sides of the double-spiral rotor are fixed through pump covers, a rotating shaft penetrates through the bearing installation holes 4 to be connected with the centers of the pump covers on two sides in a rotating mode, sealing of the pump body is achieved through the pump covers, the rotating shaft provides rotating power for the rotor, square key grooves with 5mm depth play a role in positioning for shafts installed in the bearing installation holes 4, and wrap angles of two ends of the rotor are 170-175 degrees, and sealing performance of gaps between the high-pressure containing cavities and low-pressure cavities is improved.
Working principle: when the symmetrical double-screw rotation for the axial sliding vane pump is used, the two ends of the rotor are designed to be double-screw curved surfaces, so that the axial stress is reduced by more than one half, the axial bearing stress can be reduced, the service life of the axial bearing is prolonged, and the axial alternating impact load can be reduced, thereby reducing the vibration and noise of the pump, and the two ends of the rotor are formed into a complete annular double-screw curved surface by two curved surfaces with wrap angles of 170-175 degrees and a fan-shaped plane with wrap angles of 5-10 degrees; the rotor adopts a new design concept of a fan-shaped plane with a wrap angle of 5-10 degrees between two curved surfaces with the wrap angle of 170-175 degrees, so that the point-line seal between the high-pressure cavity and the low-pressure cavity is optimized to be a linear-surface seal, the sealing performance between the high-pressure cavity and the low-pressure cavity gap is improved, the leakage quantity of a medium is reduced, the flow rate of the pump is improved, and the air suction performance and the vacuumizing performance of the pump are greatly improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (4)
1. The utility model provides an axial is symmetrical double helix rotor for sliding vane pump which characterized in that: the device comprises a water outlet (1), a machine seat (2), a water inlet (3), a bearing mounting hole (4), a key slot (5), a first containing cavity (6), a second containing cavity (7), a connecting plate (8), a poking piece (9), a third containing cavity (10), a fourth containing cavity (11) and a bearing fixing ring (12); the water outlet (1) is arranged above the machine base (2), the water outlet (1) and the machine base (2) are in an internal communication state, the water inlet (3) is arranged below the machine base (2), the water inlet (3) and the interior of the machine base (2) are in a communication state, the bearing mounting hole (4) is arranged in the middle of the bearing fixing ring (12), the key slot (5) is arranged in the bearing mounting hole (4), the first accommodating cavity (6) is arranged on the connecting plate (8), the second accommodating cavity (7) is arranged on the connecting plate (8), the third accommodating cavity (10) is arranged on the connecting plate (8), the fourth accommodating cavity (11) is arranged on the connecting plate (8), the shifting piece (9) is arranged at the highest position of the accommodating cavity, and the bearing fixing ring (12) is arranged in the middle of the connecting plate (8).
The first containing cavity (6), the second containing cavity (7), the third containing cavity (10) and the fourth containing cavity (11) form a closed containing cavity of the rotor;
the two sides of the connecting plate (8) are provided with accommodating cavities which are symmetrically arranged;
the two sides of the double-screw rotor are fixed through the pump cover, and the rotating shaft penetrates through the bearing mounting hole (4) to be in rotary connection with the centers of the pump covers on the two sides.
2. A symmetrical double helical rotor for an axial sliding vane pump according to claim 1, wherein: the double-spiral rotor formed by the connecting plate (8) and the containing cavity is arranged at the center of the machine base (2).
3. A symmetrical double helical rotor for an axial sliding vane pump according to claim 1, wherein: and the depth of the key groove (5) is 5mm, namely a square key groove (5).
4. A symmetrical double helical rotor for an axial sliding vane pump according to claim 1, wherein: the wrap angle of the two ends of the rotor is 170-175 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910233366.6A CN109751236B (en) | 2019-03-26 | 2019-03-26 | Symmetrical double-screw rotor for axial sliding vane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910233366.6A CN109751236B (en) | 2019-03-26 | 2019-03-26 | Symmetrical double-screw rotor for axial sliding vane pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109751236A CN109751236A (en) | 2019-05-14 |
| CN109751236B true CN109751236B (en) | 2023-11-28 |
Family
ID=66409439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910233366.6A Active CN109751236B (en) | 2019-03-26 | 2019-03-26 | Symmetrical double-screw rotor for axial sliding vane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109751236B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3209990A (en) * | 1962-01-18 | 1965-10-05 | Atlas Copco Ab | Two stage screw rotor machines |
| CN101029640A (en) * | 2007-03-30 | 2007-09-05 | 彭利 | Sliding-block hydraulic pump and motor |
| CN203201786U (en) * | 2012-12-05 | 2013-09-18 | 上海易昆机械工程有限公司 | Pulseless rotor pump (Q type) |
| CN105422444A (en) * | 2015-12-30 | 2016-03-23 | 泊头市广腾机械设备制造有限公司 | Multi-stage large-flow sliding vane pump |
| CN105909514A (en) * | 2016-04-14 | 2016-08-31 | 常州大学 | Sliding plate arc surface rotor pump |
| CN105971882A (en) * | 2016-07-12 | 2016-09-28 | 合肥新沪屏蔽泵有限公司 | Novel double-screw vacuum pump |
| CN106593859A (en) * | 2017-01-10 | 2017-04-26 | 黄山工业泵制造有限公司 | Disk wheel type positive displacement pump |
| CN107956688A (en) * | 2017-12-13 | 2018-04-24 | 杭州电子科技大学 | One kind has axial end face face canned rotor molded line positive displacement pump |
| CN108278202A (en) * | 2018-02-07 | 2018-07-13 | 浙江广播电视大学 | The acceleration-decelerations curved surface volume impeller pumps such as one kind three leaves distortion plane |
| CN108626115A (en) * | 2018-04-19 | 2018-10-09 | 大庆华帝石油科技有限公司 | Environmentally friendly sump oil water recovery device |
| CN108825499A (en) * | 2018-08-03 | 2018-11-16 | 天津商业大学 | Three cylinder twin-stage compressor with rolling rotor of radial equipartition sliding slot |
| CN209976767U (en) * | 2019-03-26 | 2020-01-21 | 河北双达石油设备制造有限公司 | Symmetrical double-helix rotor for axial sliding vane pump |
-
2019
- 2019-03-26 CN CN201910233366.6A patent/CN109751236B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3209990A (en) * | 1962-01-18 | 1965-10-05 | Atlas Copco Ab | Two stage screw rotor machines |
| CN101029640A (en) * | 2007-03-30 | 2007-09-05 | 彭利 | Sliding-block hydraulic pump and motor |
| CN203201786U (en) * | 2012-12-05 | 2013-09-18 | 上海易昆机械工程有限公司 | Pulseless rotor pump (Q type) |
| CN105422444A (en) * | 2015-12-30 | 2016-03-23 | 泊头市广腾机械设备制造有限公司 | Multi-stage large-flow sliding vane pump |
| CN105909514A (en) * | 2016-04-14 | 2016-08-31 | 常州大学 | Sliding plate arc surface rotor pump |
| CN105971882A (en) * | 2016-07-12 | 2016-09-28 | 合肥新沪屏蔽泵有限公司 | Novel double-screw vacuum pump |
| CN106593859A (en) * | 2017-01-10 | 2017-04-26 | 黄山工业泵制造有限公司 | Disk wheel type positive displacement pump |
| CN107956688A (en) * | 2017-12-13 | 2018-04-24 | 杭州电子科技大学 | One kind has axial end face face canned rotor molded line positive displacement pump |
| CN108278202A (en) * | 2018-02-07 | 2018-07-13 | 浙江广播电视大学 | The acceleration-decelerations curved surface volume impeller pumps such as one kind three leaves distortion plane |
| CN108626115A (en) * | 2018-04-19 | 2018-10-09 | 大庆华帝石油科技有限公司 | Environmentally friendly sump oil water recovery device |
| CN108825499A (en) * | 2018-08-03 | 2018-11-16 | 天津商业大学 | Three cylinder twin-stage compressor with rolling rotor of radial equipartition sliding slot |
| CN209976767U (en) * | 2019-03-26 | 2020-01-21 | 河北双达石油设备制造有限公司 | Symmetrical double-helix rotor for axial sliding vane pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109751236A (en) | 2019-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201615056U (en) | Rotor pump with high self-priming performance | |
| CN108662424A (en) | A kind of rotor-type oil pump that can improve cavitation erosion | |
| CN209976767U (en) | Symmetrical double-helix rotor for axial sliding vane pump | |
| CN109751236B (en) | Symmetrical double-screw rotor for axial sliding vane pump | |
| CN212003608U (en) | Small-flow high-lift multistage centrifugal pump | |
| CN105697366A (en) | Blade type sea water pump | |
| CN214887936U (en) | High-efficient double entry pump | |
| CN214424691U (en) | Triangular rotor pump | |
| CN215719474U (en) | Speed-regulating circulation oil transfer pump | |
| CN112879283B (en) | Triangular rotor pump | |
| CN101235818A (en) | Synchronous revolution fluid compressing device | |
| CN201786649U (en) | Synchronous-rotation multiphase mixture pump | |
| CN208719808U (en) | A kind of rotor-type oil pump that can improve cavitation erosion | |
| CN101298868A (en) | Rotor pump with rotary slices | |
| CN206753899U (en) | A kind of steering pump of low noise low pulse | |
| CN202391727U (en) | Double-chamber vane pump with combined compensation of large cylinder springs and small cylinder springs | |
| CN1323243C (en) | Synchronous rotary compressor | |
| CN114810582B (en) | Shielding type internal engaged cycloidal gear pump | |
| CN201206550Y (en) | Synchronous rotation fluid machinery | |
| WO2024060503A1 (en) | Oil pumping device and vehicle | |
| CN213808075U (en) | Single-cylinder rotor pump with rotary one-way valve | |
| CN218882511U (en) | Roots vacuum pump with five-point mechanical sealing structure | |
| CN204283882U (en) | Blower fan | |
| CN203348071U (en) | Engine cooling water cycloid pump | |
| CN114704467B (en) | High-lift high-flow self-balancing multistage centrifugal pump suitable for complex water quality environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |