CN204082528U - Novel internal messing gear pump with variable capacity - Google Patents
Novel internal messing gear pump with variable capacity Download PDFInfo
- Publication number
- CN204082528U CN204082528U CN201420372403.4U CN201420372403U CN204082528U CN 204082528 U CN204082528 U CN 204082528U CN 201420372403 U CN201420372403 U CN 201420372403U CN 204082528 U CN204082528 U CN 204082528U
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- CN
- China
- Prior art keywords
- gear
- end cap
- small gear
- gear ring
- guide sleeve
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- 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 discloses a kind of novel internal messing gear pump with variable capacity, comprise housing, left end cap, right end cap, housing is provided with inlet port, send hydraulic fluid port, small gear is set in housing, outside small gear, gear ring is set, in enclosure interior, be provided with left and right guide sleeve, both join together with several screws, the outer garden cylinder supporting guiding protruded by left and right end cap, and gear ring can be driven to move axially along small gear along cylndrical surface; Spring is provided with between right end cap and right guide sleeve; Between left end cap and left guide sleeve, be provided with several depressing plunger.The utility model is rational in infrastructure, and pump operation noise is low, pressure surge is little, operational efficiency is high.
Description
Technical field
The utility model relates to a kind of internal messing gear pump with variable capacity.
Background technique
Existing gear pump, complex structure, service behaviour is undesirable, there is the defects such as noise is large, pressure surge is large, operational efficiency is low.
Summary of the invention
The purpose of this utility model is to provide a kind of rational in infrastructure, the novel internal messing gear pump with variable capacity that noise is little, pressure surge is little, operational efficiency is high.
Technical solution of the present utility model is:
A kind of novel internal messing gear pump with variable capacity, comprise housing, left end cap, right end cap, housing is provided with inlet port, send hydraulic fluid port, it is characterized in that: in housing, small gear is set, the axle of small gear is bearing on sliding bearing, and rotated by motivational drive, outside small gear, gear ring is set, in space between gear ring and small gear, inside and outside sealing block is installed, spring sheet is had to strut in gap between inside and outside sealing block, there is the pressure oil of introducing in this gap, interior sealing block is pressed on small gear, external sealed block is pressed on gear ring endoporus; Left and right side plate is respectively equipped with, small gear, the close enclosed space formed between inside and outside sealing block and left and right side plate, i.e. hyperbaric chamber in the arranged on left and right sides of small gear; When small gear rotates, gear ring engagement rotates, and exits engagement place at the gear teeth, and swept volume increases, form vacuum, from inlet port inhalant liquid force feed, enter engagement place at the gear teeth, swept volume reduces, and hydraulic oil is gone out by gear ring bottom outlet is squeezed, through sending hydraulic fluid port to be sent to hydraulic system; In enclosure interior, be provided with left and right guide sleeve, both join together with several screws, the outer garden cylinder supporting guiding protruded by left and right end cap, and gear ring can be driven to move axially along small gear along cylndrical surface, thus both engaging width are changed, realize the requirement of variable; Between right end cap and right guide sleeve, be provided with spring, it promotes right guide sleeve, gear ring to left movement; Between left end cap and left guide sleeve, be provided with several depressing plunger, spring force can be produced with spring after incoming pressure oil and balance, thus determine two gears meshing width sizes.
In gear ring, the right side of small gear is equipped with a sealing external gear, and it all engages with all teeth of gear ring, and energy relative gear rings is in axial sliding.
Left sideboard is provided with S connected in star, and S V-shaped ring is wherein housed, and by aperture, outlet pressure oil is introduced groove, S connected in star is corresponding with pump zone of high pressure tightening seal.
Right sideboard is established C connected in star, is inside placed with C shape seal ring, introduces high pressure oil by aperture, the impacting force that C shape groove produces is pressed on right sideboard on the end face of sealing gear.
There is circular groove on the right side with gear ring, and is communicated with high pressure oil by groove.
The utility model is rational in infrastructure, and pump operation noise is low, pressure surge is little, operational efficiency is high.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the B-B sectional view of Fig. 1.
Fig. 3 is the A-A sectional view of Fig. 1.
Embodiment
A kind of novel internal messing gear pump with variable capacity, comprise housing 3, left end cap 1, right end cap 9, housing is provided with inlet port (S mouth), send hydraulic fluid port (P mouth), small gear 6 is set in housing, the axle of small gear is bearing on sliding bearing, and rotated by motivational drive, gear ring 4 is set outside small gear, in being provided with in space between gear ring and small gear, external sealed block 13, 14, in, spring sheet is had to strut in gap between external sealed block, the pressure oil of introducing is had in this gap, interior sealing block is pressed on small gear, external sealed block is pressed on gear ring endoporus, seal action can be played, and can compensate for wear.Left and right side plate 5,10 is respectively equipped with, small gear, the close enclosed space formed between inside and outside sealing block and left and right side plate, i.e. hyperbaric chamber in the arranged on left and right sides of small gear; When small gear rotates, gear ring engagement rotates, and exits engagement place at the gear teeth, and swept volume increases, form vacuum, from inlet port inhalant liquid force feed, enter engagement place at the gear teeth, swept volume reduces, and hydraulic oil is gone out by gear ring bottom outlet is squeezed, through sending hydraulic fluid port to be sent to hydraulic system; Oil-absorbing process and force feed process are carried out continuously in gear rotary course, thus just constantly can export high pressure oil.In enclosure interior, be provided with left and right guide sleeve 2,7, both join together with several screws 15, the outer garden cylinder supporting guiding protruded by left and right end cap, and gear ring can be driven to move axially along small gear along cylndrical surface, thus both engaging width are changed, realize the requirement of variable; Between right end cap and right guide sleeve, be provided with spring 8, it promotes right guide sleeve, gear ring to left movement; Between left end cap and left guide sleeve, be provided with several depressing plunger 11, spring force can be produced with spring after incoming pressure oil and balance, thus determine two gears meshing width sizes, input oil pressure is larger, engaging width less (discharge capacity is less), otherwise engaging width larger (discharge capacity is larger).Invariable power, constant voltage, constant flow, manual variable various ways can be realized by appropriate configuration conversion.
Axial seal structure process: for ensureing between right sideboard 10, small gear 6, gear ring 4, space is there is not in multivariable process, ensure excellent sealing, in gear ring 4, (on the right side of small gear) installs a sealing external gear 12, it all engages with all teeth of gear ring 4, and can be in axial sliding with minimum gap relative gear rings 4.Such right sideboard 10 pushes sealing external gear 12, then pushes small gear 6 right side, completes end face and radial seal effect.
End force collocation structure process: left sideboard 5 is on the left of small gear 6, side plate there is S connected in star 16, S V-shaped ring is wherein housed, by aperture, outlet pressure oil is introduced groove, S connected in star is corresponding with pump zone of high pressure tightening seal, its form the distracting force that impacting force should produce slightly larger than flank zone of high pressure, and both ensureing with one heart, to ensure compensate for wear, maintain rational gap.
Right sideboard 10 has C connected in star 17, is inside placed with C shape seal ring, introduces high pressure oil by aperture, the impacting force that C shape groove produces is pressed on right sideboard 10 on the end face of sealing gear 12, keeps good end face seal.
There is circular groove on the right side with gear ring 4, is communicated with high pressure oil by groove.Usually, the distribution of gear ring 4 pressure at both sides is different, gear ring can be pressed to the right, is same as oil pressure in annular groove and produces pressure, make gear ring two side clearance balanced, also improve lubricating condition simultaneously.
Claims (4)
1. a novel internal messing gear pump with variable capacity, comprise housing, left end cap, right end cap, housing is provided with inlet port, send hydraulic fluid port, it is characterized in that: in housing, small gear is set, the axle of small gear is bearing on sliding bearing, and rotated by motivational drive, outside small gear, gear ring is set, in space between gear ring and small gear, inside and outside sealing block is installed, spring sheet is had to strut in gap between inside and outside sealing block, there is the pressure oil of introducing in this gap, interior sealing block is pressed on small gear, external sealed block is pressed on gear ring endoporus; Left and right side plate is respectively equipped with, small gear, the close enclosed space formed between inside and outside sealing block and left and right side plate, i.e. hyperbaric chamber in the arranged on left and right sides of small gear; When small gear rotates, gear ring engagement rotates, and exits engagement place at the gear teeth, and swept volume increases, form vacuum, from inlet port inhalant liquid force feed, enter engagement place at the gear teeth, swept volume reduces, and hydraulic oil is gone out by gear ring bottom outlet is squeezed, through sending hydraulic fluid port to be sent to hydraulic system; In enclosure interior, be provided with left and right guide sleeve, both join together with several screws, the outer garden cylinder supporting guiding protruded by left and right end cap, and gear ring can be driven to move axially along small gear along cylndrical surface, thus both engaging width are changed, realize the requirement of variable; Between right end cap and right guide sleeve, be provided with spring, it promotes right guide sleeve, gear ring to left movement; Between left end cap and left guide sleeve, be provided with several depressing plunger, spring force can be produced with spring after incoming pressure oil and balance, thus determine two gears meshing width sizes.
2. novel internal messing gear pump with variable capacity according to claim 1, is characterized in that: in gear ring, the right side of small gear is equipped with a sealing external gear, and it all engages with all teeth of gear ring, and energy relative gear rings is in axial sliding.
3. novel internal messing gear pump with variable capacity according to claim 1 and 2, is characterized in that: left sideboard is provided with S connected in star, S V-shaped ring is wherein housed, and by aperture, outlet pressure oil is introduced groove, S connected in star is corresponding with pump zone of high pressure tightening seal.
4. novel internal messing gear pump with variable capacity according to claim 1 and 2, it is characterized in that: on right sideboard, establish C connected in star, inside be placed with C shape seal ring, introduce high pressure oil by aperture, the impacting force that C shape groove produces is pressed on right sideboard on the end face of sealing gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420372403.4U CN204082528U (en) | 2014-07-08 | 2014-07-08 | Novel internal messing gear pump with variable capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420372403.4U CN204082528U (en) | 2014-07-08 | 2014-07-08 | Novel internal messing gear pump with variable capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082528U true CN204082528U (en) | 2015-01-07 |
Family
ID=52175254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420372403.4U Expired - Fee Related CN204082528U (en) | 2014-07-08 | 2014-07-08 | Novel internal messing gear pump with variable capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082528U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088784A (en) * | 2014-07-08 | 2014-10-08 | 南通恒好液压科技有限公司 | Internally meshed variable gear pump |
| CN108644110A (en) * | 2016-03-19 | 2018-10-12 | 长泰县爱菲社机械科技有限公司 | A kind of internal messing gear pump with variable capacity |
| CN110529379A (en) * | 2019-09-12 | 2019-12-03 | 东莞市雅之雷德机电科技有限公司 | A kind of vacuum pump |
-
2014
- 2014-07-08 CN CN201420372403.4U patent/CN204082528U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088784A (en) * | 2014-07-08 | 2014-10-08 | 南通恒好液压科技有限公司 | Internally meshed variable gear pump |
| CN108644110A (en) * | 2016-03-19 | 2018-10-12 | 长泰县爱菲社机械科技有限公司 | A kind of internal messing gear pump with variable capacity |
| CN110529379A (en) * | 2019-09-12 | 2019-12-03 | 东莞市雅之雷德机电科技有限公司 | A kind of vacuum pump |
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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 |
Granted publication date: 20150107 Termination date: 20150708 |
|
| EXPY | Termination of patent right or utility model |