CN203384041U - Inner meshing cycloid rotor pump - Google Patents
Inner meshing cycloid rotor pump Download PDFInfo
- Publication number
- CN203384041U CN203384041U CN201320325250.3U CN201320325250U CN203384041U CN 203384041 U CN203384041 U CN 203384041U CN 201320325250 U CN201320325250 U CN 201320325250U CN 203384041 U CN203384041 U CN 203384041U
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- oil pump
- pump
- line oil
- swing line
- output shaft
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Abstract
The utility model discloses an inner meshing cycloid rotor pump. The inner meshing cycloid rotor pump is characterized in that a motor output shaft (20) of a motor (10) adopts a lengthening shaft structure, an output shaft of the motor is lengthened so that the output shaft of the motor is directly utilized as a transmission shaft of inner and outer rotors of a cycloid oil pump, and the output shaft of the motor is lengthened so as to be as a centering shaft of an inner rotor of the cycloid oil pump, so that an inner meshing cycloid rotor oil pump with the cycloid oil pump and the motor assembled into an integral body is formed. The inner meshing cycloid rotor pump provided by the utility model has the advantages that a condition of various negative performance influences caused by error intervals generated in the design and assembly process of a split type assembly structure is avoided, the operation of the cycloid oil pump is stable, the noise is low, the gross efficiency of an oil pump is improved, the service life of the oil pump is prolonged, and meanwhile, due to the integral structure, the needed functions can be realized by adopting few parts, the integral volume of the pump is reduced to a great degree, and the inner meshing cycloid rotor pump is compact and simple.
Description
Technical field
The utility model relates to a kind of cycloid rotor pump, especially relates to a kind of interior engaged cycloidal rotor pump.
Background technique
Various gear pumps, the cam pump structure of domestic production at present all are adopted as motor, oil pump independent split type; The oil pump output shaft is connected with motor by axle sleeve, seam, for guaranteeing the convenience of product batch production assembling, the matching gap operated by rotary motion of axle sleeve and seam must be larger, this can exist unavoidably mismatch error to cause the final assembly coaxality poor in assembly process, and easily causes in use existing the defect phenomenons such as current value is higher, the life-span is short, noise is high to exist; Adopt the pump housing of such product structure to exist noise larger, working life is short, and bearing capacity is low, the fault such as easily occur that the oil pump total efficiency reduces, former oil seepage or inner and outer rotors are killed.
The model utility content
The utility model exists oil pump, the split type assembling of motor for solving existing cycloid rotor pump, the final assembly coaxality is poor, small product size is larger, vibrations are large, efficiency is low, the present situations such as noise is large and provide a kind of can eliminate to a greater extent the assembling coaxiality error generation, make the oil pump operation more steady, the interior engaged cycloidal rotor pump that noise is lower.
The utility model is to solve the problems of the technologies described above adopted concrete technological scheme to be: a kind of interior engaged cycloidal rotor pump, it is characterized in that: the motor output shaft of motor adopts the extension shaft structure, motor output shaft add grow to motor output shaft can be directly as the transmission shaft of Swing line oil pump inner and outer rotors, motor output shaft is lengthened to the centration axis that becomes the Swing line oil pump internal rotor, form the interior engagement cycloidal rotor oil pump that Swing line oil pump and motor are assembled into integral type.Swing line oil pump and motor are assembled into the interior engagement cycloidal rotor oil pump structure of integral type, and various negative performance impacts are brought in the error gap produced in the design of having avoided split type package assembly to a greater extent and assembly process; Make the Swing line oil pump operation more stable, noise is lower, has improved total efficiency and the working life of oil pump.The structure of integral type, adopted component still less can realize needed function simultaneously, and the overall volume that has reduced product to a greater extent is more compact simple.
As preferably, described motor output shaft extension shaft is provided with recessed keyway, is provided with the connecting key that drives Swing line oil pump internal rotor rotating in same direction in keyway.Improve the reliability and stability that motor output shaft drives Swing line oil pump internal rotor rotating in same direction.
As preferably, described Swing line oil pump comprises Swing line oil pump front case and Swing line oil pump rear case, and the Swing line oil pump front case adopts consistent coaxality with motor output shaft.Improve production installation, demolition and maintenance operation convenience.
As preferably, described motor output shaft is provided with the sliding bearing for auxiliary internal rotor location.Better the auxiliary locating effect of internal rotor on motor output shaft, improve rotational stability and reliability, reach raising cycloid rotor pump to a greater extent usability and working life effect.
As preferably, described sliding bearing is located at internal rotor at direction place, front end and back end, and one of them sliding bearing is arranged in the rear case of Swing line oil pump, and another sliding bearing is arranged in the front case of Swing line oil pump.Better the auxiliary locating effect of internal rotor on motor output shaft, improve rotational stability and reliability, reach raising cycloid rotor pump to a greater extent usability and working life effect.
As preferably, the rotor surface of described Swing line oil pump inner and outer rotors is provided with the phosphatization processing layer.Reduce the friction system between inner and outer rotors, improve lubricating ability, prevent that the phenomenon of mutually killing of inner and outer rotors oneself from occurring.
As preferably, the front end of described Swing line oil pump front case and the installation place of motor output shaft are provided with High-pressure oil sealing.Improve sealing effect, prevent that the crude oil Seepage from occurring.
As preferably, the place, exterior edge face that described Swing line oil pump is installed at Swing line oil pump front case and Swing line oil pump rear case is provided with seal ring.Further preferred, described seal ring is located on the installation end face of Swing line oil pump rear case.Improve the sealing effect of product, prevent that the crude oil Seepage from occurring.
The beneficial effects of the utility model are: Swing line oil pump and motor are assembled into the interior engagement cycloidal rotor oil pump structure of integral type, improved assembly precision, reduced product overall volume size, adopt component still less can realize needed function, structure is more compact, simple, and various negative performance impacts are brought in the error gap produced in the design of having avoided split type package assembly to a greater extent and assembly process; Make the Swing line oil pump operation more stable, noise is lower, has improved total efficiency and the working life of oil pump.The structure of while integral type.The Seepage that better prevents crude oil, lubricant oil occurs.
the accompanying drawing explanation:
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of the preferred implementation of engaged cycloidal rotor pump in the utility model.
Fig. 2 is interior engaged cycloidal rotor pump view in the course of the work.
Embodiment
In embodiment shown in Fig. 1, a kind of interior engaged cycloidal rotor pump, the motor output shaft 20 of motor 10 adopts the extension shaft structure, motor bearings 11 and motor output shaft 20 are installed in motor 10, motor output shaft 20 add grow to motor output shaft can be directly as the transmission shaft of Swing line oil pump inner and outer rotors, motor output shaft is lengthened to the centration axis that becomes the Swing line oil pump internal rotor, form the interior engagement cycloidal rotor oil pump that Swing line oil pump and motor are assembled into integral type.Have recessed keyway 21 on the motor output shaft extension shaft, the connecting key 80 that drives Swing line oil pump internal rotor rotating in same direction is installed in keyway 21.Swing line oil pump comprises Swing line oil pump front case 40 and Swing line oil pump rear case 90.Swing line oil pump front case 40 and Swing line oil pump rear case 90 are arranged on motor output shaft, Swing line oil pump front case 40 adopts consistent coaxality with motor output shaft 20, improve and guaranteed the coaxality of front case bearing guard and motor output shaft, avoid the axle head of the major axis output generation large phenomenon of beating.Sliding bearing 50 for auxiliary internal rotor location is installed on motor output shaft.Two sliding bearings 50 that are sleeved on motor output shaft are arranged on respectively internal rotor at direction place, front end and back end, and one of them sliding bearing 50 is arranged in the rear case of Swing line oil pump, and another sliding bearing 50 is arranged in the front case of Swing line oil pump.The rotor surface of Swing line oil pump inner and outer rotors carries out the phosphatization processing in order to reduce friction factor, to improve lubricating ability, has reduced mutually to kill phenomenon between rotor.The front end of Swing line oil pump front case 40 and the installation place of motor output shaft are equipped with High-pressure oil sealing 30.The place, exterior edge face that Swing line oil pump is installed at Swing line oil pump front case 40 and Swing line oil pump rear case 90 establishes seal ring 41 is installed; Further, seal ring 41 is arranged on the installation end face of Swing line oil pump rear case 90.
During use, after motor 10 is connected threephase AC, motor output shaft 20 High Rotation Speeds, drive Swing line oil pump internal rotor 60 rotating in same directions by connecting key 80; Internal rotor 60 is by motor output shaft 20 centering, and the outer footpath of Swing line oil pump external rotor 70 and pump chamber endoporus coordinate centering, the gear motion that both are fixed shaft gear train.
As shown in Figure 2, inner and outer rotors is done fixed-axis rotation around center O 1, O2 separately, the flank profil engagement can make between inner and outer rotors to form the sealing cavity volume that volume constantly changes, the formed space of each tooth is sealing mutually, the engaged point in A chamber and B chamber separates as shown in Figure 2, along with the continuation A rotated, B cavity space increase, outside liquid completes oil-absorbing process because the negative pressure in space enters in cavity; Inner and outer rotors is rotated further when the cavity volume space is reduced, suck before fluid produced pressure by space compression and be discharged from from oil outlet.When the driven by motor internal rotor does not stop rotation, Swing line oil pump can complete the process of oil suction and oil extraction continuously, carries out work.
Although this paper has more been used the terms such as Swing line oil pump, motor output shaft, Swing line oil pump inner and outer rotors, keyway, driving key, Swing line oil pump front case, Swing line oil pump rear case, sliding bearing; But do not get rid of the possibility of using other term.Using these terms is only in order to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (10)
1. engaged cycloidal rotor pump in a kind, it is characterized in that: the motor output shaft (20) of motor (10) adopts the extension shaft structure, motor output shaft add grow to motor output shaft can be directly as the transmission shaft of Swing line oil pump inner and outer rotors, motor output shaft is lengthened to the centration axis that becomes the Swing line oil pump internal rotor, form the interior engagement cycloidal rotor oil pump that Swing line oil pump and motor are assembled into integral type.
2. according to interior engaged cycloidal rotor pump claimed in claim 1, it is characterized in that: described motor output shaft extension shaft is provided with recessed keyway (21), is provided with the connecting key (80) that drives Swing line oil pump internal rotor rotating in same direction in keyway (21).
3. according to interior engaged cycloidal rotor pump claimed in claim 1, it is characterized in that: described Swing line oil pump comprises Swing line oil pump front case (40) and Swing line oil pump rear case (90), and Swing line oil pump front case (40) adopts consistent coaxality with motor output shaft (20).
4. according to interior engaged cycloidal rotor pump claimed in claim 1, it is characterized in that: described motor output shaft is provided with the sliding bearing (50) for auxiliary internal rotor location.
5. according to interior engaged cycloidal rotor pump claimed in claim 4, it is characterized in that: described sliding bearing (50) is located at internal rotor at direction place, front end and back end, one of them sliding bearing (50) is arranged in the rear case of Swing line oil pump, and another sliding bearing (50) is arranged in the front case of Swing line oil pump.
6. according to interior engaged cycloidal rotor pump claimed in claim 1, it is characterized in that: the rotor surface of described Swing line oil pump inner and outer rotors is provided with the phosphatization processing layer.
7. according to interior engaged cycloidal rotor pump claimed in claim 3, it is characterized in that: the front end of described Swing line oil pump front case (40) and the installation place of motor output shaft are provided with High-pressure oil sealing (30).
8. according to the described interior engaged cycloidal rotor pump of claim 3 or 6, it is characterized in that: the place, exterior edge face that described Swing line oil pump is installed at Swing line oil pump front case (40) and Swing line oil pump rear case (90) is provided with seal ring (41).
9. according to interior engaged cycloidal rotor pump claimed in claim 8, it is characterized in that: described seal ring (41) is located on the installation end face of Swing line oil pump rear case (90).
10. according to interior engaged cycloidal rotor pump claimed in claim 8, it is characterized in that: described seal ring (41) is O-ring seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320325250.3U CN203384041U (en) | 2013-06-07 | 2013-06-07 | Inner meshing cycloid rotor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320325250.3U CN203384041U (en) | 2013-06-07 | 2013-06-07 | Inner meshing cycloid rotor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203384041U true CN203384041U (en) | 2014-01-08 |
Family
ID=49872544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320325250.3U Expired - Fee Related CN203384041U (en) | 2013-06-07 | 2013-06-07 | Inner meshing cycloid rotor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203384041U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295607A (en) * | 2014-09-11 | 2015-01-21 | 吴斯灏 | Improved servo control oil supply device |
| CN110601451A (en) * | 2019-09-18 | 2019-12-20 | 精进电动科技股份有限公司 | Engine and motor assembly |
-
2013
- 2013-06-07 CN CN201320325250.3U patent/CN203384041U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295607A (en) * | 2014-09-11 | 2015-01-21 | 吴斯灏 | Improved servo control oil supply device |
| CN104295607B (en) * | 2014-09-11 | 2017-11-28 | 苏州萨伯工业设计有限公司 | Modified SERVO CONTROL fueller |
| CN110601451A (en) * | 2019-09-18 | 2019-12-20 | 精进电动科技股份有限公司 | Engine and motor assembly |
| WO2021051795A1 (en) * | 2019-09-18 | 2021-03-25 | 精进电动科技股份有限公司 | Engine and electric motor assembly |
| US11303187B2 (en) | 2019-09-18 | 2022-04-12 | Jing-Jin Electric Technologies Co., Ltd. | Engine-and-electric-machine assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20180607 |