CN2746155Y - Multi-gear hydraulic pump - Google Patents
Multi-gear hydraulic pump Download PDFInfo
- Publication number
- CN2746155Y CN2746155Y CN 200320104007 CN200320104007U CN2746155Y CN 2746155 Y CN2746155 Y CN 2746155Y CN 200320104007 CN200320104007 CN 200320104007 CN 200320104007 U CN200320104007 U CN 200320104007U CN 2746155 Y CN2746155 Y CN 2746155Y
- Authority
- CN
- China
- Prior art keywords
- gear
- hydraulic pump
- oil hydraulic
- central gear
- pump
- 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
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Abstract
The utility model relates to a multi-gear hydraulic pump, which is suitable for a hydraulic system adopting hydraulic-oil, oil emulsion or water as working substance. A shell is provided with a center wheel and many satellite wheel. Because many satellite wheels are meshed with the center wheel simultaneously, when the utility model works as a hydraulic pump, the utility model can reduce the impingement and noise on the occasion of gear meshing, increase the displacement of the pump and greatly improve the flow quality of the pump. The utility model can be used in the hydraulic transmission system in the mechanical field as a hydraulic power element, and also can be used in the field of energy resource and chemical industry as a fluid conveyor.
Description
Technical field
The utility model relates to a kind of multi-gear oil hydraulic pump, is applicable to mineral oil, emulsified liquid or water to be the system of working medium, belongs to the hydraulic transmission field.
Background technique
At present, the gear pump that uses in Hydraulic Power Transmission System mostly is external gear pump, and this gear pump is meshing with each other by the gear of two identical parameters and constitutes.For convenience of explanation, claim that this external gear pump is the full depth tooth wheel pump.Characteristics such as the full depth tooth wheel pump is little, simple in structure with its volume, easy processing, cost is low, working service is convenient and obtain extensive use.But the impact noise of full depth tooth wheel pump is big, flow pulsation is big; The output torque pulsation of ordinary gear motor is big, and this has limited the application area of full depth tooth wheel pump again, especially in high-precision Hydraulic Power Transmission System, seldom adopts the full depth tooth wheel pump as dynamical element.
Summary of the invention
In order to overcome the deficiency that full depth tooth wheel pump impact noise is big, flow pulsation is big, the utility model provides a kind of multi-gear oil hydraulic pump.This multi-gear oil hydraulic pump not only has the characteristics that impact is little, noise is low, and discharge capacity is big, and flow pulsation is little.
The technological scheme that its technical problem that solves the utility model adopts is: a central gear is installed in housing, around central gear, evenly arrange a plurality of satellite wheels, central gear simultaneously and the engagement of a plurality of satellites wheel has been avoided single impact and noise that is produced during to gear engagement.When as oil hydraulic pump, prime mover power is imported by central gear, and central gear drives the satellite wheel and rotates, and liquid enters the pump housing by front cover, discharges the pump housing by rear end cover.
The beneficial effects of the utility model are when as oil hydraulic pump, can increase its discharge capacity (being equivalent to a plurality of gear pump deliveries), and significantly reduce its flow pulsation.In addition, because the symmetry properties of structure, gear mesh force that central gear is suffered and radial hydraulic pressure are balances, and therefore, the passive radial power of central gear and axle sleeve thereof is zero.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described further.
Fig. 1 is a structural drawing of the present utility model.
Fig. 2 is the A--A sectional view of Fig. 1.
1. central gears among the figure, 2. rear end cover, 3. satellite axle sleeve, 4. housing, 5. satellite wheel, 6. front cover, 7. central gear axle sleeve.
Embodiment
In Fig. 1, a central gear (1) is installed in the housing (4), 3 the satellite wheels (5) that evenly distribute around central gear (1), central gear (1) are by 2 central gear axle sleeves (7) supporting, and each satellite wheel (5) is supported by 2 satellite axle sleeve (3) respectively.A front cover (6) is installed in the front portion of housing, is furnished with liquid entering hole on it, and a rear end cover (2) is installed at the rear portion of housing, is furnished with liquid outlet on it.
This model utility is during as oil hydraulic pump, prime mover power is by central gear (1) input, and central gear (1) drives 3 satellite wheels (5) and rotates simultaneously, forms 3 external gear pumps, liquid is entered by the liquid entering hole on the front cover (6), enters the admission chamber (O of 3 pairs of engaging gears respectively through feed pathway
1, O
2, O
3) (see figure 2), pressured fluid is then by the exhaust chamber (P of 3 pairs of engaging gears
1, P
2, P
3) through apocenosis passage by the liquid outlet excavationg pump outside.
This model utility is owing to there are 3 satellites wheels (5) simultaneously and central gear (1) engagement, avoided single impact and noise that is produced during to gear engagement.When as oil hydraulic pump, can increase its discharge capacity (being equivalent to 3 gear pump delivery sums), and can significantly reduce its flow pulsation.
Claims (7)
1. multi-gear oil hydraulic pump, a central gear is installed in housing, is evenly distributed with a plurality of satellite wheels around central gear, a front cover is installed in the front portion of housing, a rear end cover is installed at the rear portion of housing, it is characterized in that: central gear is meshed with a plurality of satellite wheels simultaneously.
2. multi-gear oil hydraulic pump according to claim 1 is characterized in that: the structure of central gear is the shaftgear structure, and the center hole that the one end passes front cover stretches out outside.
3. multi-gear oil hydraulic pump according to claim 1 is characterized in that: the structure of satellite wheel is 2-5 for the shaftgear structure of symmetry, the number of satellite wheel, and structural parameter are identical.
4. multi-gear oil hydraulic pump according to claim 1 is characterized in that: central gear and satellite wheel are by sleeve supporting.
5. multi-gear oil hydraulic pump according to claim 1 is characterized in that: central gear and satellite wheel can be made of metal, also can make of composite material.
6. multi-gear oil hydraulic pump according to claim 1 is characterized in that: the tooth curve of central gear and satellite wheel can be an involute profile, also can be circular arc profile.
7. multi-gear oil hydraulic pump according to claim 1 is characterized in that: the profile of tooth of central gear and satellite wheel can be a straight-tooth, also can be helical teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320104007 CN2746155Y (en) | 2003-10-27 | 2003-10-27 | Multi-gear hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320104007 CN2746155Y (en) | 2003-10-27 | 2003-10-27 | Multi-gear hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2746155Y true CN2746155Y (en) | 2005-12-14 |
Family
ID=35582736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320104007 Expired - Fee Related CN2746155Y (en) | 2003-10-27 | 2003-10-27 | Multi-gear hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2746155Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867434A (en) * | 2014-04-15 | 2014-06-18 | 郑州机械研究所 | Planetary helical gear pump |
-
2003
- 2003-10-27 CN CN 200320104007 patent/CN2746155Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867434A (en) * | 2014-04-15 | 2014-06-18 | 郑州机械研究所 | Planetary helical gear pump |
| CN103867434B (en) * | 2014-04-15 | 2016-04-06 | 郑州机械研究所 | Helical teeth planetary gear pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |