CN205243836U - Compensation structure in superminiature high -pressure gear pump - Google Patents
Compensation structure in superminiature high -pressure gear pump Download PDFInfo
- Publication number
- CN205243836U CN205243836U CN201521108726.3U CN201521108726U CN205243836U CN 205243836 U CN205243836 U CN 205243836U CN 201521108726 U CN201521108726 U CN 201521108726U CN 205243836 U CN205243836 U CN 205243836U
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- CN
- China
- Prior art keywords
- oilhole
- compensation
- steel ball
- shutoff
- gear pump
- Prior art date
- 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 belongs to hydraulic component, in particular to compensation structure in superminiature high -pressure gear pump, including the pump body (1), shutoff steel ball one (2), shutoff steel ball two (3), with one (1 -3) of compensation oilhole intercommunication between one (1 -1) of business turn over oilhole and business turn over oilhole two (the 1 -2) on the pump body (1) terminal surface, the outer end of compensation oilhole (1 -3) is sealed with one (2) the shutoff of shutoff steel ball, with two (1 -6) of compensation oilhole intercommunication between initiative gear shaft hole (1 -4) on the pump body (1) terminal surface and the driven gear shaft hole (1 -5), the outer end of compensation oilhole two (1 -6) is sealed with two (3) the shutoff of shutoff steel ball, compensation structure in superminiature high -pressure gear pump simple structure, let out in having reduced, the efficiency of the volume is improved, prolongs service life, the fault rate of product in the use has been reduced.
Description
Technical field
The utility model belongs to Hydraulic Elements, particularly collocation structure in a kind of superminiature high-pressure gear pump.
Background technology
Current existing superminiature high-pressure gear pump, because the precision of process equipment is difficult to meet the requirement of its machining accuracy, cause this gear pump hydraulic oil under high pressure conditions between gear shaft and axis hole, to leak seriously, cause volumetric efficiency low, affect the normal use of pump, thereby cause product, in use fault is many, and service life is short.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, provides a kind of simple in structure, and volumetric efficiency is high, collocation structure in the superminiature high-pressure gear pump of long service life.
The technical scheme that the utility model technical solution problem adopts is: in superminiature high-pressure gear pump, collocation structure comprises the pump housing, plugging steel ball one, plugging steel ball two, be characterized in the turnover oilhole one on pump body end surface and pass in and out between oilhole two with one connection of compensation oilhole, plugging steel ball one shutoff sealing for the outer end of compensation oilhole one, between driving gear axis hole on pump body end surface and driven gear axis hole, be communicated with plugging steel ball two shutoff sealings for the outer end of compensation oilhole two with compensation oilhole two.
The beneficial effects of the utility model are: in superminiature high-pressure gear pump, collocation structure is simple in structure, in having reduced, lets out, and has improved volumetric efficiency, has extended service life, has reduced product fault rate in use.
Brief description of the drawings
Illustrate with embodiment below in conjunction with accompanying drawing.
Fig. 1 is collocation structure structural front view in superminiature high-pressure gear pump.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the B-B cutaway view of Fig. 1.
In figure, the 1-pump housing; 1-1-passes in and out oilhole one; 1-2-passes in and out oilhole two; 1-3-compensates oilhole one; 1-4-driving gear axis hole; 1-5-driven gear axis hole; 1-6-compensates oilhole two; 1-7-oil duct; 1-8-bolt hole; 2-plugging steel ball one; 3-plugging steel ball two.
Detailed description of the invention
Embodiment, with reference to accompanying drawing 1 ~ 3, in superminiature high-pressure gear pump, on the end face of the pump housing 1 of collocation structure, be respectively equipped with turnover oilhole one 1-1, turnover oilhole two 1-2, driving gear axis hole 1-4, driven gear axis hole 1-5, oil duct 1-7, bolt hole 1-8, oil duct 1-7 is communicated with respectively with between turnover oilhole one 1-1 and turnover oilhole two 1-2. Between turnover oilhole one 1-1 and turnover oilhole two 1-2, be communicated with compensation oilhole one 1-3, plugging steel ball one 2 shutoff sealings for compensation oilhole one 1-3 outer end, between driving gear axis hole 1-4 and driven gear axis hole 1-5, be communicated with plugging steel ball 23 shutoff sealings for the outer end of compensation oilhole two 1-6 with compensation oilhole two 1-6.
In superminiature high-pressure gear pump, the operation principle of collocation structure is: compensation oilhole one 1-3 and compensation oilhole two 1-6 are set on the pump housing 1 by collocation structure in superminiature high-pressure gear pump, driving gear shaft and driving gear axis hole 1-4 while making superminiature high-pressure gear pump be in high pressure conditions, the hydraulic oil leaking between the gap of driven gear shaft and driven gear axis hole 1-5, by compensation oilhole one 1-3 and compensation oilhole two 1-6, get back to turnover oilhole one 1-1 and turnover oilhole two 1-2, again enter high pressure chest, make the energy leaking again participate in work, and then improve volumetric efficiency, and increase lubricating between axle and axis hole, reduce friction, reduce the moment of torsion of necessary electromotor input, extend the service life of superminiature high-pressure gear pump and necessary electromotor.
Claims (1)
1. collocation structure in a superminiature high-pressure gear pump, comprise the pump housing (1), plugging steel ball one (2), plugging steel ball two (3), it is characterized in that the turnover oilhole one (1-1) on the pump housing (1) end face and pass in and out between oilhole two (1-2) being communicated with compensation oilhole one (1-3), plugging steel ball one (2) shutoff sealing for the outer end of compensation oilhole one (1-3), between driving gear axis hole (1-4) on the pump housing (1) end face and driven gear axis hole (1-5), be communicated with compensation oilhole two (1-6), plugging steel ball two (3) shutoff sealings for the outer end of compensation oilhole two (1-6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521108726.3U CN205243836U (en) | 2015-12-29 | 2015-12-29 | Compensation structure in superminiature high -pressure gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521108726.3U CN205243836U (en) | 2015-12-29 | 2015-12-29 | Compensation structure in superminiature high -pressure gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205243836U true CN205243836U (en) | 2016-05-18 |
Family
ID=55942923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521108726.3U Expired - Fee Related CN205243836U (en) | 2015-12-29 | 2015-12-29 | Compensation structure in superminiature high -pressure gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205243836U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167180A (en) * | 2017-12-28 | 2018-06-15 | 潍柴动力股份有限公司 | A kind of lubricating oil pump and engine |
| CN112879284A (en) * | 2021-01-29 | 2021-06-01 | 宁波盛德气动液压有限公司 | Hydraulic gear pump driving and driven wheel gap detection device |
-
2015
- 2015-12-29 CN CN201521108726.3U patent/CN205243836U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167180A (en) * | 2017-12-28 | 2018-06-15 | 潍柴动力股份有限公司 | A kind of lubricating oil pump and engine |
| CN108167180B (en) * | 2017-12-28 | 2019-07-05 | 潍柴动力股份有限公司 | A kind of lubricating oil pump and engine |
| CN112879284A (en) * | 2021-01-29 | 2021-06-01 | 宁波盛德气动液压有限公司 | Hydraulic gear pump driving and driven wheel gap detection device |
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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: 20160518 Termination date: 20161229 |