CN205172935U - Double gear pump improves structure - Google Patents
Double gear pump improves structure Download PDFInfo
- Publication number
- CN205172935U CN205172935U CN201521026576.1U CN201521026576U CN205172935U CN 205172935 U CN205172935 U CN 205172935U CN 201521026576 U CN201521026576 U CN 201521026576U CN 205172935 U CN205172935 U CN 205172935U
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- China
- Prior art keywords
- gear
- level
- pump body
- pump
- driving gear
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- Expired - Fee Related
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Abstract
The utility model discloses a double gear pump improves structure belongs to double gear pump, aim at providing a simple structure compactness, processing easy maintenance's double gear pump. It includes the two -stage gear pump, the one -level gear pump by the one -level pump body (3), supporting one -level driving gear (12) and one -level driven gear (4), driving shaft (1) be connected with one -level driving gear (12) in this one -level pump body, fix blind flange (2) and connection cover plate (11) the constitution on the one -level pump body (3), the second grade gear pump by connecting axle (10) of fixing secondary drive gear (9) and second grade driven gear (6) in this second grade pump body of the second grade pump body (5) on the one -level pump body (3), supporting, be connected with secondary drive gear (9), fix apron (7) the component on the second grade pump body (5), connecting axle (10) are connected with one -level driving gear (12). The utility model discloses structure, light in weight are a double gear pump's improvement.
Description
Technical field
The utility model relates to a kind of duplex gear pump, particularly relates to a kind of duplex gear pump modified node method.
Background technique
As everyone knows, duplex gear pump is in series by two-stage gear pump; There is the features such as high speed, high pressure, large discharge; Usually be in series by two-stage gear pump.As: notification number is " CN203420881U ", name is called " double-gear oil pump "; The shortcoming of this patent is: the main shaft of two stage pump is connected by the cross shaped joint being arranged in connecting plate, not only connecting plate processing, maintenance trouble, and complete machine axial dimension is larger.
Summary of the invention
For the above-mentioned defect existed in prior art, the utility model aim to provide a kind of simple and compact for structure, process duplex gear pump modified node method easy to maintenance.
To achieve these goals, the utility model by the following technical solutions: it comprises one-level gear pump and secondary gear wheel pump; Described one-level gear pump by first-stage pump body, be separately bearing in one-level driving gear in this first-stage pump body and one-level driven gear respectively by two pairs of bearings, the driving shaft be connected with the endoporus of one-level driving gear by spline, the blind flange being fixed on first-stage pump body left end, the connection cover plate that is fixed on first-stage pump body right-hand member formed; Described secondary gear wheel pump by be fixed on by fastening piece first-stage pump body right side second-stage pump body, be separately bearing in secondary driving gear in this second-stage pump body and secondary driven gear respectively by other two pairs of bearings, the coupling shaft that is connected with the endoporus of secondary driving gear by spline, the cover plate that is fixed on second-stage pump body right-hand member formed; The left end of coupling shaft is connected by the endoporus of spline with one-level driving gear.
Collar driving shaft, coupling shaft separated is fixed with in the endoporus of one-level driving gear.
Compared with the prior art, the driving gear of two stage pump and driven gear and gear shaft, owing to have employed technique scheme, are organically integrated, and gear shaft have been changed into hollow sleeve-like structure by the utility model; Therefore not only alleviated weight, but also can realize spline joint, thus shortened the axial dimension of complete machine, structure is compacter, and processing maintenance is also very convenient.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present utility model;
Fig. 2 is the driving gear of the utility model one-level gear pump, the structural representation of driven gear engagement.
In figure: driving shaft 1, blind flange 2, first-stage pump body 3, one-level driven gear 4, second-stage pump body 5, secondary driven gear 6, cover plate 7, bearing 8, secondary driving gear 9, coupling shaft 10, connection cover plate 11, one-level driving gear 12, collar 13.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.
As shown in Fig. 1 ~ 2: one-level gear pump by first-stage pump body 3, be separately bearing in one-level driving gear 12 in this first-stage pump body and one-level driven gear 4 respectively by two pairs of bearings 8, the driving shaft 1 be connected with the endoporus of one-level driving gear 12 by spline, the blind flange 2 being fixed on first-stage pump body 3 left end, the connection cover plate 11 that is fixed on first-stage pump body 3 right-hand member formed; One-level driving gear 12 engages with one-level driven gear 4.
Secondary gear wheel pump by be fixed on by fastening piece first-stage pump body 3 right side second-stage pump body 5, be separately bearing in secondary driving gear 9 in this second-stage pump body and secondary driven gear 6 respectively by other two pairs of bearings 8, the coupling shaft 10 that is connected with the endoporus of secondary driving gear 9 by spline, the cover plate 7 that is fixed on second-stage pump body 5 right-hand member formed; The left end of coupling shaft 10 is connected by the endoporus of spline with one-level driving gear 12, and secondary driving gear 9 engages with secondary driven gear 6.
In order to avoid, driving shaft 1, coupling shaft 10 play and interfering in the endoporus of one-level driving gear 12, is fixed with the collar 13 driving shaft 1, coupling shaft 10 separated in the endoporus of one-level driving gear 12.
Claims (2)
1. a duplex gear pump modified node method, comprises one-level gear pump and secondary gear wheel pump; It is characterized in that: described one-level gear pump by first-stage pump body (3), be separately bearing in one-level driving gear (12) in this first-stage pump body and one-level driven gear (4) respectively by two pairs of bearings (8), the driving shaft (1) be connected with the endoporus of one-level driving gear (12) by spline, the blind flange (2) being fixed on first-stage pump body (3) left end, the connection cover plate (11) that is fixed on first-stage pump body (3) right-hand member formed; Described secondary gear wheel pump by be fixed on by fastening piece first-stage pump body (3) right side second-stage pump body (5), be separately bearing in secondary driving gear (9) in this second-stage pump body and secondary driven gear (6) respectively by other two pairs of bearings (8), the coupling shaft (10) that is connected with the endoporus of secondary driving gear (9) by spline, the cover plate (7) that is fixed on second-stage pump body (5) right-hand member formed; The left end of coupling shaft (10) is connected by the endoporus of spline with one-level driving gear (12).
2. duplex gear pump modified node method according to claim 1, is characterized in that: be fixed with the collar (13) driving shaft (1), coupling shaft (10) separated in the endoporus of one-level driving gear (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521026576.1U CN205172935U (en) | 2015-12-14 | 2015-12-14 | Double gear pump improves structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521026576.1U CN205172935U (en) | 2015-12-14 | 2015-12-14 | Double gear pump improves structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205172935U true CN205172935U (en) | 2016-04-20 |
Family
ID=55736937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521026576.1U Expired - Fee Related CN205172935U (en) | 2015-12-14 | 2015-12-14 | Double gear pump improves structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205172935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505960A (en) * | 2019-01-23 | 2019-03-22 | 福建江夏学院 | A kind of low noise traveling pump of engineering machinery |
-
2015
- 2015-12-14 CN CN201521026576.1U patent/CN205172935U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505960A (en) * | 2019-01-23 | 2019-03-22 | 福建江夏学院 | A kind of low noise traveling pump of engineering machinery |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20181214 |