CN103644115A - Biarc screw pump - Google Patents
Biarc screw pump Download PDFInfo
- Publication number
- CN103644115A CN103644115A CN201310385197.0A CN201310385197A CN103644115A CN 103644115 A CN103644115 A CN 103644115A CN 201310385197 A CN201310385197 A CN 201310385197A CN 103644115 A CN103644115 A CN 103644115A
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- pump housing
- pump
- hole
- driven gear
- driving gear
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Provided is a biarc screw pump. The pump body of the biarc screw pump comprises a front pump body and a rear pump body. The front end of the front pump body is closed to form a front closed end, and the rear end of the rear pump body is closed to form a rear closed end. The rear end of the front pump body and the front end of the rear pump body are assembled to form a pump cavity containing a driving gear wheel and a driven gear wheel inside. The pump body of the biarc screw pump is formed through assembly of the front pump body and the rear pump body, so during the pump cavity processing, the depth of the pump cavity is only half of depth of a whole pump body of the prior art, so the pump cavity processing precision is easy to guarantee.
Description
Technical field
The present invention relates to a kind of pair of arc spiral rod pump, particularly the two arc spiral rod pumps of a kind of external gear pump.
Background technique
External gear type oil pump simple structure, and the advantage such as owing to possessing compact structure, easily manufactured, contamination resistance is strong, and self-priming performance is good, and application is very extensive in machine industry, aviation industry and engineering machinery.
External gear type oil pump is mainly by driving gear, driven gear, live axle, and the major parts such as oil pump case form.In oil pump case, intermeshing driving gear, driven gear form seal operation volume together with two end cap and oil pump case, the contact points of gear separates left and right two chambeies, oil sucting cavity and pumping cavity have been formed, when gear rotates, the gear teeth in oil sucting cavity depart from engagement, and pressurization working lumen volume constantly increases, forming section vacuum, fluid enters oil sucting cavity from fuel tank through fuel sucking pipe under atmospheric pressure effect, and the gear teeth that are rotated are brought the pumping cavity in left side into.The gear teeth in pumping cavity constantly enter engagement, and pressurization working lumen volume is reduced, and fluid is squeezed and is discharged into outside the pump housing.
Existing oil pump case is overall structure, and owing to holding, the cavity of driving gear and driven gear is longer, therefore in machining to form in the process of oil pump case cavity, precision is difficult to guarantee.Even if add a little error in man-hour, in the using process of external gear type oil pump, also can be exaggerated, cause the pump oil Efficiency Decreasing of external gear type oil pump.
Summary of the invention
The object of the invention is to provide a kind of pair of arc spiral rod pump.
For achieving the above object, the technical solution used in the present invention is: a kind of pair of arc spiral rod pump, and the described pair of arc spiral rod pump pump housing comprises the front pump housing and the rear pump housing; Closed end before the front end sealing of the described front pump housing forms, described rear pump housing back-end closure forms rear enclosed end; The front end amalgamation of the rear end of the described front pump housing and the described rear pump housing forms the inner pump chamber that accommodates driving gear and driven gear; On described front closed end, offer that driving gear is installed front hole and driven gear is installed front hole; On described rear enclosed end, offer driving gear metapore and driven gear installation metapore are installed; Described driving gear is installed front hole, driven gear is installed in front hole, driving gear installation metapore and driven gear installation metapore and is provided with lining; Described driving gear is installed on front hole and driving gear installation metapore in described driving gear by lining rotational support; Described driven gear is installed on front hole and driven gear installation metapore in described driven gear by lining rotational support; One side of the described pair of arc spiral rod pump pump housing is provided with filler opening, and opposite side is provided with oil outlet.
Preferred technological scheme is: the ear end face of the described front pump housing is provided with prelocalization hole, and the position in the corresponding described prelocalization of the front-end face hole of the described rear pump housing is provided with rear positioning hole, and described prelocalization hole and rear positioning hole are by a location finger setting.
Preferred technological scheme is: the described front pump housing is provided with pump housing fixed via, the position of the corresponding described pump housing fixed via of the described rear pump housing is provided with pump housing retaining thread hole, and a pump housing screw is tightened setting with structure that the described front pump housing and the rear pump housing are linked into an integrated entity through described pump housing fixed via and described pump housing retaining thread hole.
Preferred technological scheme is: between the described front pump housing and the rear pump housing, be provided with seal ring.
Preferred technological scheme is: also comprise a front cover, described front cover is fixed on the front closed end of the described front pump housing.
Preferred technological scheme is: also comprise a rear end cover, described rear end cover is fixed on the rear enclosed end of the described rear pump housing.
Preferred technological scheme is: described driven gear is installed by front hole and driven gear installation metapore is equipped with pad bearing, and described driven gear rotational support is on described pad bearing.
Preferred technological scheme is: described driving gear is installed metapore and is provided with pad bearing, and described driving gear rotational support is on described pad bearing.
Related content in technique scheme is explained as follows:
Driving gear in technique scheme and driven gear all have a rotating shaft and are located at the gear teeth formation in rotating shaft, and rotating shaft and the gear teeth are generally one of the forming.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect:
Therefore 1, the of the present invention pair of arc spiral rod pump pump housing is spliced to form by the front pump housing and the rear pump housing, and when processing pump chamber, the degree of depth of pump chamber is only equivalent to half of the degree of depth of the whole pump housing of prior art, so the machining accuracy of pump chamber is more easily guaranteed.
2, the front pump housing of the present invention and the rear pump housing are the semi-enclosed cavity of one end sealing, and therefore, the end of the pump housing of the present invention is fixed, the two ends with respect to prior art with the end cap sealing pump housing, and structure of the present invention is more stable.
Accompanying drawing explanation
Accompanying drawing 1 is rear end cover schematic diagram;
Accompanying drawing 2 is the A-A sectional view of accompanying drawing 1;
Accompanying drawing 3 is O shape circle schematic diagram;
Accompanying drawing 4 is front pump housing schematic diagram:
Accompanying drawing 5 is the B-B sectional view of accompanying drawing 4;
Accompanying drawing 6 is front pump housing schematic perspective view;
Accompanying drawing 7 is lining schematic diagram;
Accompanying drawing 8 is driven gear schematic diagram;
Accompanying drawing 9 is driving gear schematic diagram;
Figure 10 is front cover schematic diagram;
Figure 11 is the exploded perspective view of two each constituent elements of arc spiral rod pump.
In above accompanying drawing, 1, rear end cover; 2, O shape circle; 3, end cap set screw; 4, locating stud; 5, pad bearing; 6, the front pump housing; 7, lining; 8, driven gear; 9, driving gear; 10, the rear pump housing; 11, driving gear seal ring; 12, pump housing screw; 13, front cover; 14, pump chamber; 15, pump housing fixed via; 16, oil outlet; 17, filler opening; 18, locating stud mounting hole.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Notice, appended graphic the illustrated structure of this specification, ratio, size etc., equal contents in order to coordinate specification to disclose only, for person skilled in the art scholar, understand and read, not in order to limit the enforceable qualifications of the present invention, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, not affecting under the effect that the present invention can produce and the object that can reach, all should still drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, in this specification, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under without essence change technology contents, when being also considered as the enforceable category of the present invention.
Embodiment: a kind of pair of arc spiral rod pump
Shown in Fig. 1～11, a kind of pair of arc spiral rod pump, the described pair of arc spiral rod pump pump housing comprises the front pump housing 6 and the rear pump housing 10; Closed end before the front end sealing of the described front pump housing 6 forms, the described rear pump housing 10 back-end closures form rear enclosed end; The front end amalgamation of the rear end of the described front pump housing 6 and the described rear pump housing 10 forms the inner pump chamber 14 that accommodates driving gear 9 and driven gear 8; On described front closed end, offer that driving gear is installed front hole and driven gear is installed front hole; On described rear enclosed end, offer driving gear metapore and driven gear installation metapore are installed; Described driving gear is installed front hole, driven gear is installed in front hole, driving gear installation metapore and driven gear installation metapore and is provided with lining 7; Described driving gear 9 is installed on front hole and driving gear installation metapore in described driving gear by lining 7 rotational support; Described driven gear 8 is installed on front hole and driven gear installation metapore in described driven gear by lining 7 rotational support; One side of the described pair of arc spiral rod pump pump housing is provided with filler opening 17, and opposite side is provided with oil outlet 16.
The ear end face of the described front pump housing 6 is provided with prelocalization hole, and the position in the corresponding described prelocalization of the front-end face hole of the described rear pump housing 10 is provided with rear positioning hole, and described prelocalization hole and rear positioning hole are by locating stud 4 location.Locating stud mounting hole 18 be the present embodiment for the purpose of distinguishing and definition prelocalization hole and positioning hole, as shown in Figure 1.For easy for installation between front cover 13, the front pump housing 6, the rear pump housing 10, rear end cover 1, the present embodiment is equipped with positioning hole between any two, then with locating stud 4 location.
The described front pump housing 6 is provided with 6 pump housing fixed vias 15, the position of the corresponding described pump housing fixed via 15 of the described rear pump housing 10 is provided with pump housing retaining thread hole, and six pump housing screws 12 are tightened setting with structure that the described front pump housing 6 and the rear pump housing 10 are linked into an integrated entity through described pump housing fixed via and described pump housing retaining thread hole.
Between the described front pump housing 6 and the rear pump housing 10, be provided with seal ring.Sealing circle is O shape circle 2.The present embodiment, between front cover 13 and the front pump housing 6, is equipped with seal ring between the rear pump housing 10 and rear end cover 1
Also comprise a front cover 13, described front cover 13 is fixed on the front closed end of the described front pump housing 6.Means of fixation is to adopt end cap set screw 3 that front cover 13 is fixed on the front closed end of the described front pump housing 6.
Also comprise a rear end cover 1, described rear end cover 1 is fixed on the rear enclosed end of the described rear pump housing 10.Means of fixation is to adopt end cap set screw 3 that rear end cover 1 is fixed on the front closed end of the described rear pump housing 10.
Described driven gear is installed by front hole and driven gear installation metapore is equipped with pad bearing 5, and described driven gear rotational support is on described pad bearing 5.
Described driving gear is installed metapore and is provided with pad bearing 5, and described driving gear rotational support is on described pad bearing 5.Described driving gear is installed front hole and is provided with driving gear seal ring 11.The output shaft of motor and described driving gear are in transmission connection.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (8)
1. two arc spiral rod pumps, is characterized in that: the described pair of arc spiral rod pump pump housing comprises the front pump housing and the rear pump housing; Closed end before the front end sealing of the described front pump housing forms, described rear pump housing back-end closure forms rear enclosed end; The front end amalgamation of the rear end of the described front pump housing and the described rear pump housing forms the inner pump chamber that accommodates driving gear and driven gear; On described front closed end, offer that driving gear is installed front hole and driven gear is installed front hole; On described rear enclosed end, offer driving gear metapore and driven gear installation metapore are installed; Described driving gear is installed front hole, driven gear is installed in front hole, driving gear installation metapore and driven gear installation metapore and is provided with lining; Described driving gear is installed on front hole and driving gear installation metapore in described driving gear by lining rotational support; Described driven gear is installed on front hole and driven gear installation metapore in described driven gear by lining rotational support; One side of the described pair of arc spiral rod pump pump housing is provided with filler opening, and opposite side is provided with oil outlet.
2. according to claim 1 pair of arc spiral rod pump, it is characterized in that: the ear end face of the described front pump housing is provided with prelocalization hole, the position in the corresponding described prelocalization of the front-end face hole of the described rear pump housing is provided with rear positioning hole, and described prelocalization hole and rear positioning hole are by a location finger setting.
3. according to claim 1 pair of arc spiral rod pump, it is characterized in that: the described front pump housing is provided with pump housing fixed via, the position of the corresponding described pump housing fixed via of the described rear pump housing is provided with pump housing retaining thread hole, and a pump housing screw is tightened setting with structure that the described front pump housing and the rear pump housing are linked into an integrated entity through described pump housing fixed via and described pump housing retaining thread hole.
4. according to claim 1 pair of arc spiral rod pump, is characterized in that: between the described front pump housing and the rear pump housing, be provided with seal ring.
5. according to claim 1 pair of arc spiral rod pump, is characterized in that: also comprise a front cover, described front cover is fixed on the front closed end of the described front pump housing.
6. according to claim 1 pair of arc spiral rod pump, is characterized in that: also comprise a rear end cover, described rear end cover is fixed on the rear enclosed end of the described rear pump housing.
7. according to claim 1 pair of arc spiral rod pump, is characterized in that: described driven gear is installed by front hole and driven gear installation metapore is equipped with pad bearing, and described driven gear rotational support is on described pad bearing.
8. according to claim 1 pair of arc spiral rod pump, is characterized in that: described driving gear is installed metapore and is provided with pad bearing, and described driving gear rotational support is on described pad bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310385197.0A CN103644115A (en) | 2013-08-29 | 2013-08-29 | Biarc screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310385197.0A CN103644115A (en) | 2013-08-29 | 2013-08-29 | Biarc screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103644115A true CN103644115A (en) | 2014-03-19 |
Family
ID=50249382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310385197.0A Pending CN103644115A (en) | 2013-08-29 | 2013-08-29 | Biarc screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103644115A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4983106A (en) * | 1988-10-07 | 1991-01-08 | Societe Anonyme Dite: Alcatel Cit | Rotary screw machine with multiple chambers in casing for lubrication-coding fluid |
| WO1996001950A1 (en) * | 1994-07-07 | 1996-01-25 | David Brown Hydraulics Limited | Helical gear pump or motor |
| JPH11270483A (en) * | 1998-03-23 | 1999-10-05 | Taiko Kikai Industries Co Ltd | Dry vacuum pump |
| CN2384005Y (en) * | 1999-07-25 | 2000-06-21 | 袁道幸 | Split-combined double screw pump |
| CN201588777U (en) * | 2009-11-30 | 2010-09-22 | 天津泵业机械集团有限公司 | Light oil conveying high-pressure three-screw pump |
| CN101852206A (en) * | 2010-06-30 | 2010-10-06 | 江西凯峰泵业有限公司 | Parallel connection type double-screw-rod pump |
| RU2431765C1 (en) * | 2010-04-20 | 2011-10-20 | Открытое акционерное общество "Татарский научно-исследовательский и проектно-конструкторский институт нефтяного машиностроения" (ОАО "ТатНИИнефтемаш") | Submersible multi-phase pump unit |
-
2013
- 2013-08-29 CN CN201310385197.0A patent/CN103644115A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4983106A (en) * | 1988-10-07 | 1991-01-08 | Societe Anonyme Dite: Alcatel Cit | Rotary screw machine with multiple chambers in casing for lubrication-coding fluid |
| WO1996001950A1 (en) * | 1994-07-07 | 1996-01-25 | David Brown Hydraulics Limited | Helical gear pump or motor |
| JPH11270483A (en) * | 1998-03-23 | 1999-10-05 | Taiko Kikai Industries Co Ltd | Dry vacuum pump |
| CN2384005Y (en) * | 1999-07-25 | 2000-06-21 | 袁道幸 | Split-combined double screw pump |
| CN201588777U (en) * | 2009-11-30 | 2010-09-22 | 天津泵业机械集团有限公司 | Light oil conveying high-pressure three-screw pump |
| RU2431765C1 (en) * | 2010-04-20 | 2011-10-20 | Открытое акционерное общество "Татарский научно-исследовательский и проектно-конструкторский институт нефтяного машиностроения" (ОАО "ТатНИИнефтемаш") | Submersible multi-phase pump unit |
| CN101852206A (en) * | 2010-06-30 | 2010-10-06 | 江西凯峰泵业有限公司 | Parallel connection type double-screw-rod pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20161019 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |