CN201165972Y - High performance full balance compound gear pump - Google Patents
High performance full balance compound gear pump Download PDFInfo
- Publication number
- CN201165972Y CN201165972Y CNU2008200764161U CN200820076416U CN201165972Y CN 201165972 Y CN201165972 Y CN 201165972Y CN U2008200764161 U CNU2008200764161 U CN U2008200764161U CN 200820076416 U CN200820076416 U CN 200820076416U CN 201165972 Y CN201165972 Y CN 201165972Y
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- gear
- pump
- planetary
- high performance
- gear pump
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Abstract
The utility model belongs to the technical field of gear pumps, in particular relating to a high performance and full balanced compound gear pump, which resolves the problem that gear pumps in the prior art do not receive balanced force. The high performance and full balanced compound gear pump comprises a front cover, a rear cover, a pump body and planetary gears arranged inside the pump body, wherein each area formed by a central wheel of the planetary gears, two adjacent planetary gear and gear ring is partitioned into four oil chambers by a partition block, the four oil chambers include two high pressure chambers and two low temperature chambers which are arranged diagonally relatively to the partition block, and side boards are respectively disposed at two ends of the gear and the gear ring along the gear width direction. The high performance and full balanced compound gear pump has the advantages that the compound gear pump has a unique structure, each part in the pump body receives force uniformly, in work, parts rarely abrade, have a long service life and low noise, are easy to realize multi-header and multi-level combination, convenient to realize variable control, and obtain energy saving, environment protection and automatic control after being combined with a computer system.
Description
Technical field
The utility model belongs to the technical field of gear pump, is specifically related to the full balance compound gear pump of a kind of high-performance.
Background technique
The hydraulic gear pump of selling at present and using has two kinds of structural types, i.e. external gear pump and crescent gear pump, and thisly form the multi-gear planetary gear pump by interior external gear pump and do not see as yet.Existing gear pump in the course of the work, the strength of gear imbalance because of as critical component causes several respects adverse effect: the eccentric wear of gear shaft upper bearing (metal); Side plate is fragile; For internally engaging pump, the wedge-shaped blocks in the pump housing is also fragile in addition.These factors finally strengthen leakage flow, have seriously restricted the raising of pressure fuel pump grade, have shortened the working life of pump.Requiring the occasion of big discharge capacity, the volume of pump is excessive.
Summary of the invention
The utility model provides a kind of high-performance full balance compound gear pump in order to solve the stressed unbalanced problem of prior art middle gear pump.
The utility model adopts following technological scheme to realize: the full balance compound gear pump of high-performance, comprise protecgulum, bonnet, the pump housing, and the inner planetary gears that is provided with of the pump housing, described planetary gears comprises central gear, planetary gear train with the central gear outer gearing, with the gear ring that meshes in the planetary gear train, each planetary pinion of planetary gear train is distributed on the circumferencial direction of central gear live axle, it is characterized in that by central gear, in each zone that two adjacent planetary pinions and gear ring surround, be separated to form four oil pockets by spacer block, four oil pockets comprise two hyperbaric chambers and two low-pressure cavity, two hyperbaric chambers and two low-pressure cavity are pressed with respect to spacer block the angular direction are distributed, along the two ends of facewidth direction, respectively be provided with a side plate at gear and gear ring.Planetary number 〉=2.
The utility model middle gear pump adopts planetary gear construction, the optimal design that reasonable symmetrical distribution and different pressures by zone of high pressure, low pressure area separates the piece outer profile curve, and to the optimal design of side plate stress balance, what make each component in this new gear pump stressedly reaches full state of equilibrium, has fundamentally eliminated the various major defects that existing gear pump exists.Realize multistage variable and stepless variable for gear pump simultaneously effective way is provided.
In addition,, then be easy to realize the multi-joint combination and the grading control of pump if planetary number is the even number greater than 2, be used in combination with electric controller again and can realize oil pump have the level and stepless change.
The relative prior art of the utility model has following beneficial effect: each component stressed evenly (balance) in the structure uniqueness of oil pump, the pump housing.Oil pump at work, parts wear is little, the life-span is long, noise is low.Easily realize multi-joint, multistage combination, the convenient Variable Control that realizes combines with computer system, reaches energy-conserving and environment-protective and automation control.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the A-A sectional drawing of Fig. 1
Among the figure: 1-protecgulum, 2-planet pin, 3-seal arrangement; The 4-collar, the 5-driving shaft bearing; The 6-central gear, 7-planetary pinion, 8-side plate, 9-O type oil sealing, 10-side plate seal ring, 11-set screw, 12-locating stud, 13-spacer block fixing pin, 14-spacer block, 15-gear ring, 16-gear ring bearing, the 17-pump housing, 18-planet wheel bearing, 19-bonnet.
Embodiment
In conjunction with the accompanying drawings embodiment of the present utility model is described further, embodiment is used for illustrating of the present utility model, rather than it is imposed any restrictions.
Fig. 1, Figure 2 shows that the technological scheme that the utility model is dealt with problems and adopted: the gear in the pump housing is meshing with each other and relative position relation similar planetary gear mechanism.The central gear 6 of planetary gear train is an actuation gear, rotates around dead axle simultaneously at central gear driving lower planetary gear 7 and gear ring 15.Wherein central gear 6 is outer gearing with planetary pinion 7, and planetary pinion 7 is interior engagement with gear ring 15.Require the number of planetary pinion 7 to be not less than 2, evenly distribute with respect to live axle axle center circumference.In the zone that surrounds by central gear, adjacent two planet wheels and gear ring,, form two hyperbaric chambers and two low-pressure cavity by the separation of spacer block 14, two hyperbaric chambers and two low-pressure cavity with respect to spacer block all by the angular direction is distributed.The peripheral camber line of spacer block 14 has carried out optimal design by the stress balance principle.Along the two ends of facewidth direction at gear and gear ring, a side plate 8 is respectively arranged, gear and gear ring float at two side sheet room depended on pressure.Make the radial and axial stressed state of equilibrium that reaches of all gears, gear ring, spacer block, side plate, bearing like this.
Claims (2)
1, the full balance compound gear pump of a kind of high-performance, comprise protecgulum (1), bonnet (19), the pump housing (17), and the inner planetary gears that is provided with of the pump housing (17), described planetary gears comprises central gear (6), planetary gear train with central gear (6) outer gearing, with the gear ring that meshes in the planetary gear train (15), each planetary pinion (7) of planetary gear train is distributed on the circumferencial direction of central gear (6) live axle, it is characterized in that by central gear (6), in each zone that adjacent two planetary pinions (7) and gear ring (15) surround, be separated to form four oil pockets by spacer block (14), four oil pockets comprise two hyperbaric chambers and two low-pressure cavity, two hyperbaric chambers and two low-pressure cavity are pressed with respect to spacer block (14) angular direction are distributed, along the two ends of facewidth direction, respectively be provided with a side plate (8) at gear and gear ring.
2, the full balance compound gear pump of a kind of high-performance is characterized in that number 〉=2 of described planetary pinion (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200764161U CN201165972Y (en) | 2008-03-03 | 2008-03-03 | High performance full balance compound gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200764161U CN201165972Y (en) | 2008-03-03 | 2008-03-03 | High performance full balance compound gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201165972Y true CN201165972Y (en) | 2008-12-17 |
Family
ID=40191358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200764161U Expired - Fee Related CN201165972Y (en) | 2008-03-03 | 2008-03-03 | High performance full balance compound gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201165972Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626513A (en) * | 2014-11-26 | 2016-06-01 | 淄博瑞莱特真空设备有限公司 | Novel gear pump with non-full-tooth gears |
-
2008
- 2008-03-03 CN CNU2008200764161U patent/CN201165972Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626513A (en) * | 2014-11-26 | 2016-06-01 | 淄博瑞莱特真空设备有限公司 | Novel gear pump with non-full-tooth gears |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20100303 |