CN207795557U - A kind of flexible gear pump - Google Patents
A kind of flexible gear pump Download PDFInfo
- Publication number
- CN207795557U CN207795557U CN201721705127.9U CN201721705127U CN207795557U CN 207795557 U CN207795557 U CN 207795557U CN 201721705127 U CN201721705127 U CN 201721705127U CN 207795557 U CN207795557 U CN 207795557U
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- China
- Prior art keywords
- gear
- pump
- flexible
- big
- gear pump
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Abstract
The utility model provides a kind of flexible gear pump technology, and the program includes pump case, flexible internal gear, flexible planet gear, central gear, connecting key, assignment hole.The technical issues of solution is:Common pump is divided into vane pump, plunger pump, gear pump.Vane pump and plunger pump structure are complicated, and expensive, gear pump structure is simple, compact, cheap, therefore is widely used, but the gear pump of the prior art there are noises it is big, flow pulsation is big, amount of leakage is big the shortcomings of limit the application range of gear pump.The utility model has the beneficial effects that：Simple in structure, easy processing, detachable structure are easily installed repair, are at low cost, it can be achieved that between cog voluntarily pressure seal, reduces leakage, symmetrical reduction lateral force.In operational process, the deformation of flexible planet gear continuous uniform reduces flowed fluctuation, has the advantages that blade pumpage is big, pressure rating is high.
Description
Technical field
The present invention relates to a kind of hydraulic pump more particularly to a kind of flexible gear pump technical fields.
Background technology
In the prior art, common pump is divided into vane pump, plunger pump, gear pump.Vane pump and plunger pump structure are complicated, price
Costliness, gear pump structure is simple, compact-sized, cheap, therefore is widely used.But the gear pump of the prior art exists
The shortcomings of noise is big, flow pulsation is big, amount of leakage is big limits the application range of gear pump.
Invention content
In view of the above problems, the present invention provides a kind of flexible gear pumps.
A kind of flexible gear pump of the present invention, including pump case, flexible internal gear, flexible planet gear, central gear,
Connecting key, assignment hole, it is characterised in that：The flexibility internal gear and pump case are separable, on the outside of inside pump casing and flexible internal gear
It is provided with keyway, flexible internal gear is fixed on by key on pump case, and inside pump casing is approximate ellipsoidal, and flexible internal gear and pump case are tight
Close fit.
It is constituted apart from unequal structure between the flexibility internal gear and central gear.
The flexible planet gear is tightly engaged with flexible internal gear and central gear respectively, and be distributed on central gear with
Between flexible internal gear, flexible planet gear is driven to be rotated around central gear when central gear rotates, flexible planet gear is turning
Continuous extrusion during dynamic.
The assignment hole is equal with flexible planet gear quantity, is distributed on valve plate, assignment hole and flexible planet gear
Coordinate distribution.
Beneficial effects of the present invention are as follows：
(1) simple in structure, easy processing, detachable structure are easily installed repair, at low cost.
(2) between cog voluntarily pressure seal can be achieved, reduce leakage, symmetrical reduction lateral force.
(3) in operational process, the deformation of flexible planet gear continuous uniform reduces flowed fluctuation.
(4) have the advantages that blade pumpage is big, pressure rating is high.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is flexible inner gear structure schematic diagram.
Fig. 3 is flexible planet gear structure schematic diagram.
In Fig. 1,1 pump case；2 flexible internal gears；3 assignment holes；4 flexible planet gears；5 central gears；6 connecting keys.
Specific implementation mode
Technical scheme of the present invention is described further below in conjunction with the drawings and the specific embodiments.
Fig. 1 is the overall structure diagram of the present invention.Fig. 2 is flexible inner gear structure schematic diagram.Fig. 3 is flexible planet
Gear structure schematic diagram.
As shown in Figure 1, the specific implementation mode of the present invention includes：Power drives central gear 5 to rotate by transmission shaft, in
Heart gear 5 drives flexible planet gear 4 to move, and 4 inner hollow of flexible planet gear constitutes confined space with pump both sides end cap, together
When two flexible planet gears 4 also surround confined space with pump case 1, central gear 5 and both sides end cap.
The flexible internal gear 2 and the distance between circular central gear 5 of approximate ellipse are unequal, flexible planet gear 4
It is deformed during the motion by continuous extrusion, two tight Container Volume of Methane are in mechanical periodicity, realize the action of suction fluid.
Tight Container Volume of Methane increases during flexible planet gear 4 moves to spacing maximum from spacing minimum, at this time
Confined space is communicated with inlet port, realizes oil suction in the process；Flexible planet gear is moved to from spacing maximum from spacing minimum
Tight Container Volume of Methane reduces in the process, and confined space is communicated with oil discharge outlet at this time, realizes oil extraction in the process.
Implementation embodiment according to the invention, you can reach beneficial effects of the present invention：
(1) simple in structure, easy processing, detachable structure are easily installed repair, at low cost.
(2) between cog voluntarily pressure seal can be achieved, reduce leakage, symmetrical reduction lateral force.
(3) in operational process, the deformation of flexible planet gear continuous uniform reduces flowed fluctuation.
(4) have the advantages that blade pumpage is big, pressure rating is high.
The above, only preferable specific implementation mode of the invention, but protection scope of the present invention is not limited to this, it is all
Within the principle of the spirit of the present invention, any modification, equivalent substitution, improvement and etc. done are regarded as invading the present invention's
Protection domain, therefore the scope of protection of the invention shall be subject to the scope of protection specified in the patent claim.
Claims (4)
1. a kind of flexible gear pump, including pump case, flexible internal gear, flexible planet gear, central gear, connecting key, assignment hole,
It is characterized in that：Flexibility internal gear and the pump case are separable, are provided with keyway on the outside of inside pump casing and flexible internal gear, in flexibility
Gear is fixed on by key on pump case, and flexible internal gear is fitted close with pump case.
2. a kind of flexible gear pump according to claim 1, it is characterised in that：The flexible planet gear respectively with flexibility
Internal gear and central gear tightly engage, and are distributed between central gear and flexible internal gear.
3. a kind of flexible gear pump according to claim 1, it is characterised in that：The assignment hole and the flexible planet number of gears
It measures equal, is distributed on valve plate.
4. a kind of flexible gear pump according to claim 1, it is characterised in that：Flexibility internal gear and the central gear it
Between distance it is unequal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721705127.9U CN207795557U (en) | 2017-12-08 | 2017-12-08 | A kind of flexible gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721705127.9U CN207795557U (en) | 2017-12-08 | 2017-12-08 | A kind of flexible gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207795557U true CN207795557U (en) | 2018-08-31 |
Family
ID=63283685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721705127.9U Expired - Fee Related CN207795557U (en) | 2017-12-08 | 2017-12-08 | A kind of flexible gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207795557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842495A (en) * | 2017-12-08 | 2018-03-27 | 安徽理工大学 | A kind of flexible gear pump |
-
2017
- 2017-12-08 CN CN201721705127.9U patent/CN207795557U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842495A (en) * | 2017-12-08 | 2018-03-27 | 安徽理工大学 | A kind of flexible gear pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180831 Termination date: 20181208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |