CN87215767U - Internal gearing rotor semi-enclosed type oil pump - Google Patents
Internal gearing rotor semi-enclosed type oil pump Download PDFInfo
- Publication number
- CN87215767U CN87215767U CN 87215767 CN87215767U CN87215767U CN 87215767 U CN87215767 U CN 87215767U CN 87215767 CN87215767 CN 87215767 CN 87215767 U CN87215767 U CN 87215767U CN 87215767 U CN87215767 U CN 87215767U
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- oil
- oil pump
- pump
- motor
- rotor
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- Rotary Pumps (AREA)
Abstract
The utility model discloses an internal gearing rotor semi-enclosed type oil pump, which belongs to the refrigeration mechanical field; the utility model is mainly used to solve the problems of the noise caused by a screw rod refrigerator oil pump and the leakage of the shaft seal. A double rotors engaged with the oil pump are connected with an electric machine rotor shaft through a same rotary shaft in the utility model, and the electric machine is directly connected with the oil pump body to form a semi enclosed type. The refrigeration oil input passage enters the oil pump intake side from an oil absorption end seat passing through the outer lateral wall surface of a motor stator; as the especial inner oil passage return circuit is adopted, the partial noise of the oil pump and the motor can be absorbed, and simultaneously, the leakage problem of the oil pump shaft seal can be eliminated fundamentally.
Description
The utility model belongs to the refrigerating machine field.Specifically, be a kind of semienclosed energy-conservation oil pump of internally meshed rotor of screw bolt refrigerating machine.
Existing screw bolt refrigerant unit, the oil pump parts that adopted are the opening type oil pump.Be the rotatingshaft of oil hydraulic-pump rotor, link to each other by coupling with motor rotation axis.To the leakage of the high pressure oil of its pump body side, all adopt the method for mechanical seal.The oil pump of this pattern, very big to noise effect in cooling machine set, directly increased the compound noise index of unit.Simultaneously, the leakage at axle envelope place usually becomes the main cause of refrigerator maintenance, has increased the maintenance management workload of cooling machine set.Therefore, existing mechanical axle encapsulation technique can not satisfy the needs of actual techniques far away.The leakage of axle envelope and the noise of oil pump have become one of outstanding problem of paying close attention to of refrigerating machine artificers.
The purpose of this utility model and task are, remove existing axle envelope parts in the cooling machine set, fundamentally eliminate the shaft sealing leakage problem of oil pump, design a kind of internal oil channel loop of special construction simultaneously, absorb the part noise of oil pump and motor, to reduce the grade of noise.Moreover, utilize the oil temperature to stablize motor heating in winding temperature, improve electrical machine insulation grade and life-span, its power of motor is improved, reduce the input power of oil pump, to reach purpose of energy saving.
In realizing concrete scheme of the present utility model, change the internal gearing oil pump rotor shaft and the motor rotation axis of screw bolt refrigerant unit fully, the traditional approach that adopts coupling to link to each other.The rotor of internal gearing oil pump to (7) and motor (2) rotor shaft, is linked to each other with same rotating shaft (4), and directly be connected to type semienclosed with the motor (2) and the pump housing (3).The refrigerator oil oil inlet passage through motor (2) stator outer side surface, enters the oil pump intake side from oil absorbing end seat (1) again.In the lower end of the bearing (5) of the pump housing (3), offer oil suction inner flow passage (11) and internal gearing oil pump rotor to the engagement of (7) suction area, constitute suction passage, and high pressure oil oil-discharging cavity (6) is opened in directly on the pump housing (3).At the stop portion (10) of the bearing (5) of pump body (3), be provided with oil leab (8) in the special-purpose micropore, with the lubrication system of equalizer bearing (5), constitute lubricating loop.Offer leaf grating oil duct (12) in the pump body (3) and the inboard of sealing motor (2) stator cooperation place, in order to the diffusing pad of motor (2) staor winding.Between the stator of the pump housing (3) and motor (2), form stationary fit, in order to the output of power of motor.Because refrigerator oil enters cascade type oil duct (12) through motor (2) rear end, has stablized the wall surface temperature of motor stator winding, has improved insulation class, also improved the power of motor simultaneously, reduced the gearing noise of rotor.
The utility model shows in test, and the type semienclosed oil pump of this internally meshed rotor can not only be eliminated the leakage problem of axle envelope, and has reduced the compound noise of screw bolt refrigerant unit, makes the oil pump input power descend 30% simultaneously.
According to structural representation of the present utility model, further describe the position between each parts below.
(1) oil absorbing end seat, (2) motor, (3) pump body, (4) rotating shaft, (5) bearing, (6) oil-discharging cavity, (7) oil hydraulic-pump rotor is right, (8) interior oil leab, (9) locating stud, (10) stop portion, (11) inner flow passage, (12) leaf grating oil duct.
The utility model design example, with BF12.5---the supporting oil pump of 11 screw bolt refrigerant units, the rotor of oil pump is that interior engagement cycloid rotor is right, motor rated power 1KW(original motor power 1.5KW), link to each other with oil hydraulic-pump rotor with the rotor of a roots rotor axle motor, form cantilever beam structure, the leptoprosopy inner flow passage flow velocity of refrigerating machine oil is 0.5～1.5m/s.This structure structure is simple, component, few easy workout part, and assembling is easy, and cost of production is low.
Claims (1)
- The semi-enclosed oil pump of a kind of internally meshed rotor, by the internal gearing oil pump rotor to (7), pump body (3), motor parts such as (2) are formed, it is characterized in that, the internal gearing oil pump rotor is to (7) and motor (2) rotor shaft, link to each other with same rotating shaft (4), the refrigerator oil oil inlet passage, through motor (2) stator outer side surface, enter the oil pump intake side from oil absorbing end seat (1) again, in the lower end of the bearing (5) of pump body (3), offering oil suction inner flow passage (11) meshes (7) suction area with the internal gearing oil pump rotor, oil pump oil-discharging cavity (6) directly is opened on the pump housing (3), and at the stop portion (10) of the block bearing (5) of pump body (3), is provided with oil leab (8) in the special-purpose micro-hole, in the inboard of pump body (3), offered leaf grating oil duct (12) with motor (2) stator cooperation place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87215767 CN87215767U (en) | 1987-11-26 | 1987-11-26 | Internal gearing rotor semi-enclosed type oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87215767 CN87215767U (en) | 1987-11-26 | 1987-11-26 | Internal gearing rotor semi-enclosed type oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87215767U true CN87215767U (en) | 1988-11-16 |
Family
ID=4829833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87215767 Withdrawn CN87215767U (en) | 1987-11-26 | 1987-11-26 | Internal gearing rotor semi-enclosed type oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87215767U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562595A (en) * | 2012-02-20 | 2012-07-11 | 赵来福 | High-efficiency screw composite oil conveying pump |
-
1987
- 1987-11-26 CN CN 87215767 patent/CN87215767U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562595A (en) * | 2012-02-20 | 2012-07-11 | 赵来福 | High-efficiency screw composite oil conveying pump |
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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 |