CN205779663U - Durable semilune pressure vessel and crescent gear pump - Google Patents
Durable semilune pressure vessel and crescent gear pump Download PDFInfo
- Publication number
- CN205779663U CN205779663U CN201620423125.XU CN201620423125U CN205779663U CN 205779663 U CN205779663 U CN 205779663U CN 201620423125 U CN201620423125 U CN 201620423125U CN 205779663 U CN205779663 U CN 205779663U
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- spring groove
- pole
- pressure vessel
- durable
- shell fragment
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Abstract
This utility model discloses a kind of durable semilune pressure vessel, is made up of positive and the bluff bit matched with described positive, arranges with having in the placing trough installing bluff bit, arrange spring groove in described placing trough on described positive；Installing pole and shell fragment in described spring groove, described pole is installed on above shell fragment, and described pole surface can contact with bluff bit lower surface, and wherein said pole is that material is made.This utility model has the following advantages: irony pole will not be caused deformation because of hypertonia by during high pressure, makes semilune pressure vessel pressure keep function to lose effectiveness.
Description
[technical field]
This utility model relates to crescent gear pump field, a kind of improves pressure maintaining performance and the durable semilune pressure vessel of stability and crescent gear pump.
[background technology]
Crescent gear pump has without pocketed oil phenomenon, conveying steadily, efficiency is high, noise is little and the advantage such as length in service life.It is widely used in the Newtonian liquid in the industries such as transfer oil, chemical industry, coating, dyestuff, food, oils and fats, medicine or non-newtonian liquid；But the conveying kind lightweight of liquid, volatile liquid are until the big medium of the viscosity such as heavy, thickness, even semisolid liquid, and its range of viscosities being suitable for can reach 0.2-1000000cp.
The movable swing link (semilune pressure vessel) of existing crescent gear pump is by high and low pressure chamber separately, and it is being formed radially pressure compensation, make to be formed between tooth top and the swing link of interior external tooth several gapless sealing, the most dynamic compensation dish then ensures the excellent sealing of axial gap so that the internal leakage of this pump reduces to minimum.Although the crescent gear pump of this structure has excellent sealing effect, but internal leakage is inevitable.
Existing improved structure, although there is good sealing effect, but the material that pole therein uses is carbon fiber, easy crimp when by high pressure so that it is semilune pressure vessel pressure keeps function to lose effectiveness.
[utility model content]
The purpose of this utility model is the deficiency overcoming above-described prior art to exist, it is provided that the semilune pressure vessel that a kind of pressure maintaining performance is excellent, more reliable and durable.
Another object of the present utility model is to provide the crescent gear pump that a kind of pressure maintaining performance is excellent, more reliable and durable.
For reaching above-mentioned purpose, the technical solution of the utility model is: durable semilune pressure vessel, is made up of positive and the bluff bit matched with described positive, arranges with having in the placing trough installing bluff bit, arrange spring groove in described placing trough on described positive；Pole and shell fragment are installed in described spring groove, described pole is installed on above shell fragment, described pole surface can contact with bluff bit lower surface, wherein said pole is that ferrous material is made, the pole that ferrous material is made will not be caused deformation because of hypertonia by during high pressure, make its semilune pressure vessel pressure keep function to lose effectiveness, more can do more fitting tightly when high pressure with semilune pressure vessel.
Being provided with stopper slot in described spring groove, when bluff bit is arranged in placing trough, arrange shell fragment in described spring groove, described shell fragment is placed in described stopper slot.Making positive mutually open with bluff bit by shell fragment elastic force, to play positive confinement pressurize effect, and shell fragment will not produce the defects such as slip.
First spring groove, the second spring groove or the 3rd spring groove can be set in described placing trough, described first spring groove, the second spring groove and the 3rd spring groove set gradually respectively on placing trough upper surface, wherein the second spring groove is positioned at middle part, and described first spring groove and the 3rd spring groove are positioned at the both sides of described second spring groove.
It is respectively provided with stopper slot in described first spring groove, the second spring groove and/or the 3rd spring groove.
Described second spring groove is than the first spring groove of both sides and the 3rd spring groove depth；Described second spring groove installs described pole and shell fragment, and described shell fragment is installed on bottom the second spring groove, and described pole is installed on above shell fragment, and described pole surface can contact with bluff bit lower surface.
Described placing trough arranges pilot port.
A kind of crescent gear pump, including a gear ring for internal messing, a little gear engaged with the part teeth portion of described gear ring, a gear ring installing described internal messing and the pump housing of little gear, form an annular space become narrow gradually between the outside circle portion of described gear ring and little gear, in described annular space, set described durable semilune pressure vessel.
Compared with prior art, this utility model has the following advantages: irony pole will not will not be caused deformation because of hypertonia because hypertonia causes deforming by during high pressure by during high pressure so that it is semilune pressure vessel pressure keeps function to lose effectiveness；More can do with semilune pressure vessel when high pressure and more fit tightly；It is provided for placing the stopper slot of shell fragment at spring groove, for placing shell fragment, prevent shell fragment from producing and depart from the defect caused, additionally mounted three stopper slots and corresponding three shell fragments, make bluff bit open under the effect of oil pressure for also having reliable elasticity to open, pressurize effect is more preferable, and reliability is improved.
[accompanying drawing explanation]
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings:
Fig. 1 is this utility model crescent gear pump embodiment 1 cross section view；
Fig. 2 is this utility model crescent gear pump embodiment 2 cross section view.
[detailed description of the invention]
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail.
A kind of durable semilune pressure vessel 5, as shown in Figure 1, it is made up of positive and the bluff bit matched with described positive, described positive is provided with the placing trough for installing bluff bit, described spring groove is set in described placing trough, pole 4 and shell fragment 8 are installed in described spring groove, described pole 4 is installed on above shell fragment 8, described pole 4 surface can contact with bluff bit lower surface, wherein said pole 4 is made for ferrous material, the pole that ferrous material is made will not be caused deformation because of hypertonia by during high pressure, its semilune pressure vessel pressure is made to keep function to lose effectiveness, more can do with semilune pressure vessel when high pressure and more fit tightly.
In described placing trough, spring groove is set；It is provided with stopper slot in described spring groove.Described spring groove can arrange minimum of one, two or three etc. as required.Preferably, minimum in described placing trough three spring groove the first spring grooves, the second spring groove and the 3rd spring groove are set.When bluff bit is arranged in placing trough, shell fragment 8 is set in described spring groove (the first spring groove, the second spring groove and the 3rd spring groove)；Positive is made mutually to open with bluff bit by shell fragment 8 elastic force, to play the pressurize effect of positive confinement.Described shell fragment 8 can be wavy spring.Described first spring groove, the second spring groove and the 3rd spring groove lay respectively at and set gradually on placing trough upper surface, and wherein the second spring groove is positioned at middle part, and described first spring groove and the 3rd spring groove are positioned at the both sides of described second spring groove.Wherein, second spring groove at middle part is than the first spring groove of both sides and the 3rd spring groove depth 0.1-0.5mm；Wherein, installing pole 4 and shell fragment 8, described shell fragment 8 is installed on bottom the second spring groove, and described pole 8 is installed on above shell fragment 8, and described pole 4 surface can contact with bluff bit lower surface.Described placing trough arranges pilot port.After described positive assembles with bluff bit, a side leans against on overhead block.
A kind of crescent gear pump, as depicted in figs. 1 and 2, including a gear ring 2 for internal messing, a little gear 6 engaged with the part teeth portion of described gear ring 2, a gear ring 2 installing internal messing and the pump housing 1 of little gear 6.Described little gear 6 is fixed on tooth axle, is bearing in the described pump housing 1 by tooth axle.Described little gear 6 is arranged off-centre relative to gear ring 2, and little gear 6 teeth portion relative with in gear ring 2 engages.Form a sickle-shaped annular space become narrow gradually--pump chamber between described gear ring 2 and the outside circle portion of little gear 6, described pump chamber is provided with substantially suitable with the side peripheral profile of described pump chamber durable semilune pressure vessel 5.The effect of described durable semilune pressure vessel 5 is that the teeth groove contacted being entirely covered by forming face in outside circle region with tooth top seals, and pressure plare and the sealing ring of two respective shapes that these teeth groove by the end face of the pump housing 1 and are arranged on pump case respectively in axial both sides seal.Crescent gear pump also includes front pump cover and the protecgulum being arranged on the pump housing 1 front end, is provided with oil sealing, axle bush between described protecgulum and front pump cover.The sealing ring being provided with pressure plare and two respective shapes between the described pump housing and front pump cover seals.The rear pump cover of the described pump housing 1 rear end and bonnet.The pressure plare that is provided with between the described pump housing 1 and rear pump cover seals and the sealing ring sealing of two respective shapes.The described pump housing is fixed by screw with protecgulum, front pump cover, rear pump cover and bonnet.Arranging high-pressure oil outlet 11 on the described pump housing 1, described high-pressure oil outlet 11 is connected with the high-voltage oil cavity 14 in the pump housing 1；Arranging low pressure oil-in 12 on the described pump housing 1, described low pressure oil-in 12 is connected with the low pressure oil pocket 13 in the pump housing 1.Wherein, described high-pressure oil outlet 11 and low pressure oil-in 12 for having the setting of certain angle, or described high-pressure oil outlet 11 with low pressure oil-in 12 with a parallel or same direct setting in direction.
Although this utility model is to be described with reference to specific embodiments, but this description is not meant to be construed as limiting this utility model.With reference to description of the present utility model, other changes of the disclosed embodiments, for those skilled in the art be all it is anticipated that, this change should belong in appended claims limited range.
Claims (7)
- The most durable semilune pressure vessel, is made up of positive and the bluff bit matched with described positive, Described positive is arranged with having in the placing trough installing bluff bit, it is characterised in that set in described placing trough Put spring groove；Installing pole and shell fragment in described spring groove, described pole is installed on above shell fragment, described Pole surface can contact with bluff bit lower surface, and wherein said pole is that ferrous material is made.
- 2. according to the durable semilune pressure vessel described in claim 1, it is characterised in that institute It is provided with stopper slot in stating spring groove, when bluff bit is arranged in placing trough, arranges in described spring groove Shell fragment, described shell fragment is placed in described stopper slot.
- 3. according to the durable semilune pressure vessel described in claim 2, it is characterised in that institute First spring groove, the second spring groove or the 3rd spring groove be set in stating placing trough, described first spring groove, Second spring groove and the 3rd spring groove set gradually respectively on placing trough upper surface, wherein the second spring groove Being positioned at middle part, described first spring groove and the 3rd spring groove are positioned at the both sides of described second spring groove.
- 4. according to the durable semilune pressure vessel described in claim 3, it is characterised in that institute It is respectively provided with stopper slot in stating the first spring groove, the second spring groove and/or the 3rd spring groove.
- 5. according to the durable semilune pressure vessel described in claim 3, it is characterised in that institute State the second spring groove than the first spring groove of both sides and the 3rd spring groove depth；Described second spring groove installs institute Stating pole and shell fragment, described shell fragment is installed on bottom the second spring groove, and described pole is installed on above shell fragment, Described pole surface contacts with bluff bit lower surface.
- 6. according to the durable semilune pressure vessel described in claim 5, it is characterised in that On described placing trough, pilot port is set.
- 7. a crescent gear pump, including a gear ring for internal messing, one and described gear ring The little gear of part teeth portion engagement, one the gear ring of described internal messing and the pump housing of little gear, institute are installed Stating one annular space become narrow gradually of formation between the outside circle portion of gear ring and little gear, described annular is empty In be provided with according to the arbitrary described durable semilune pressure vessel of claim 1-6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620423125.XU CN205779663U (en) | 2016-05-10 | 2016-05-10 | Durable semilune pressure vessel and crescent gear pump |
| TW106112679A TW201740021A (en) | 2016-05-10 | 2017-04-14 | Durable semilune pressure keeps ware and crescent gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620423125.XU CN205779663U (en) | 2016-05-10 | 2016-05-10 | Durable semilune pressure vessel and crescent gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205779663U true CN205779663U (en) | 2016-12-07 |
Family
ID=57409895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620423125.XU Active CN205779663U (en) | 2016-05-10 | 2016-05-10 | Durable semilune pressure vessel and crescent gear pump |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN205779663U (en) |
| TW (1) | TW201740021A (en) |
-
2016
- 2016-05-10 CN CN201620423125.XU patent/CN205779663U/en active Active
-
2017
- 2017-04-14 TW TW106112679A patent/TW201740021A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| TW201740021A (en) | 2017-11-16 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |