CN106194721B - A kind of gear pump - Google Patents
A kind of gear pump Download PDFInfo
- Publication number
- CN106194721B CN106194721B CN201610773936.7A CN201610773936A CN106194721B CN 106194721 B CN106194721 B CN 106194721B CN 201610773936 A CN201610773936 A CN 201610773936A CN 106194721 B CN106194721 B CN 106194721B
- Authority
- CN
- China
- Prior art keywords
- oil
- gear
- pump
- shaft
- pump housing
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0088—Lubrication
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Details Of Gearings (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a kind of gear pumps, including transmission gear, shaft, pump oil driving gear, pump oil driven gear and the pump housing equipped with lubricating cavity and gear cavity, the pump oil driving gear and pump oil driven gear rotate in the gear cavity, and the two is meshed, transmission gear is set in lubricating cavity, and transmission gear is connected by shaft with pump oil driving gear, further include oil tight skeleton and oil exit pipe, two oil tight skeletons are sheathed in shaft, and two are formed with collection chamber between oil tight skeleton, the pump housing is equipped with outage, the outage is connected with collection chamber, oil exit pipe one end is connected on outage, the other end is connected with the inlet port on the pump housing.The configuration of the present invention is simple, sealing effect is good, and pollution is small, and fluid utilization rate is high.
Description
Technical field：
The present invention relates to a kind of gear pumps.
Background technology：
Sealing between existing gear pump gear chamber and lubricating cavity is generally to be realized by sealing ring, is used for a long time
Afterwards, the fluid in gear cavity can gradually overflow across sealing ring and penetrate into lubricating cavity, to dilute the lubricating oil in lubricating cavity, make
At the damage of gear pump.
Therefore, it is necessory to be improved to the prior art to solve the deficiency of the prior art.
Invention content：
The present invention is to provide a kind of gear pump to solve the above-mentioned problems of the prior art.
The technical solution adopted in the present invention has：Gear pump, including transmission gear, shaft, pump oil driving gear, pump oil from
Moving gear and the pump housing equipped with lubricating cavity and gear cavity, the pump oil driving gear and pump oil driven gear, which rotate, is set to institute
It states in gear cavity, and the two is meshed, transmission gear is set in lubricating cavity, and transmission gear passes through shaft and pump oil driving gear
It is connected, further includes oil tight skeleton and oil exit pipe, two oil tight skeletons are sheathed in shaft, and are formed between two oil tight skeletons
Collection chamber, the pump housing are equipped with outage, which is connected with collection chamber, and oil exit pipe one end is connected on outage,
The other end is connected with the inlet port on the pump housing.
Further, the pump housing is equipped with axis hole, and shaft rotating support is in the axis hole, and one end and transmission gear phase
Even, the other end is connected with pump oil driving gear.
Further, the axis hole includes axle bearing mount portion and oil sealing portion, and the oil tight skeleton is set in oil sealing portion.
Further, the inner wall in the oil sealing portion is equipped with the runner of ring-shaped, and two oil tight skeletons are placed in the runner both sides,
And collection chamber connects with the runner.
Further, the pump housing is equipped with oil leak hole, and one end of the oil leak hole is connected with the oil sealing portion of axis hole, another
End is connected with the inlet port on the pump housing.
Further, the shaft is equipped with circlip, and the oil tight skeleton is sealed in oil sealing portion by circlip
It is interior.
The present invention has the advantages that：
In use, if the leakage of gear cavity inner fluid occurs, the fluid in leakage can first pass through draining to the present invention
Hole is discharged into inlet port and is recycled, if the fluid of leakage is more and when overflowing across oil tight skeleton, this overflows across oil tight skeleton
Fluid can be discharged by outage and pass through oil exit pipe and enter in inlet port and be recycled, oil leak hole, outage and oil
Seal skeleton collective effect, the fluid energy that the fluid being effectively prevented in gear cavity enters in lubricating cavity, and leaked from gear cavity
It is enough recycled, does not pollute the environment, resulting advantageous effect is：The configuration of the present invention is simple, sealing effect is good, pollution
Small, fluid utilization rate is high.
Description of the drawings：
Fig. 1 is sectional structure chart of the present invention.
Fig. 2 is the sectional structure chart of middle pump body of the present invention.
Specific implementation mode：
The present invention will be further described below with reference to the drawings.
As depicted in figs. 1 and 2, a kind of gear pump of the present invention, including the pump housing 1, transmission gear 2, shaft 3, pump oil driving tooth
Wheel 41 and pump oil driven gear 42 are equipped with lubricating cavity 11, gear cavity 12, inlet port and press oil port, inlet port on the pump housing 1
It connects with the gear cavity 12 on the pump housing 1 with press oil port, pump oil driving gear 41 and pump oil driven gear 42 are rotated and be set to
In gear cavity 12, and pump oil driving gear 41 and pump oil driven gear 42 are meshed, and transmission gear 2 is set in lubricating cavity 11, turn
The rotation of axis 3 is set in the pump housing 1, and one end is connected with transmission gear 2, and the other end is connected with pump oil driving gear 41.
The present invention is to prevent the fluid on pump housing gear chamber 12 from entering in lubricating cavity 11, be arranged in shaft 3 there are two
Oil tight skeleton 5, and it is formed with collection chamber 51 between two oil tight skeleton 5, outage 100, the outage are equipped on the pump housing 1
100 are connected with collection chamber 51.It is connected with oil exit pipe 6 on the outage 100 of the pump housing, the oil exit pipe 6 and the oil suction on the pump housing 1
Mouthful be connected, overflow across oil tight skeleton fluid can pass through outage 100 be discharged and by oil exit pipe 6 enter inlet port in.As a result, originally
Invention is by providing special draining path rather than being leaked to asking for lubricating cavity 11 by sealing means to solve high pressure oil simply
Topic, while oil supply system is returned to by the oil that special draining path is recovered to, make the oily recoverable of leakage.
For ease of installing shaft 3, axis hole 13 is equipped on the pump housing 1, shaft 3 is by bearing rotating support in the axis hole 13
Interior, and one end stretches in and is connected with transmission gear 2 in lubricating cavity 11, it is interior with 41 phase of pump oil driving gear that the other end stretches in gear cavity 12
Even.
Axis hole 13 includes axle bearing mount portion 130 and oil sealing portion 131, and oil tight skeleton 5 is set in oil sealing portion 131.For preferably
Axially position is carried out to oil tight skeleton 5, circlip 6 is equipped in shaft 3, oil tight skeleton 5 is sealed by circlip 6 and positioned
In in oil sealing portion 131.
The runner 1310 of ring-shaped is equipped on the inner wall in oil sealing portion 131, two oil tight skeletons 5 are placed in 1310 liang of the runner
Side, the collection chamber 51 between the runner 1310 and two oil tight skeletons 5 connect, and outage 100 is connected with the runner 1310.
The present invention is that the fluid being better protected from gear cavity 12 enters in lubricating cavity 11, and oil leak hole is equipped on the pump housing 1
110, one end of the oil leak hole 110 is connected with the oil sealing portion 131 of axis hole 13, and the other end is connected with the inlet port on the pump housing 1.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
It for member, can also make several improvements without departing from the principle of the present invention, these improvement also should be regarded as the present invention's
Protection domain.
Claims (1)
1. a kind of gear pump, including transmission gear（2）, shaft（3）, pump oil driving gear（41）, pump oil driven gear（42）With
And it is equipped with lubricating cavity（11）And gear cavity（12）The pump housing（1）, the pump oil driving gear（41）With pump oil driven gear（42）
Rotation is set to the gear cavity（12）It is interior, and the two is meshed, transmission gear（2）Set on lubricating cavity（11）It is interior, and driving cog
Wheel（2）Pass through shaft（3）With pump oil driving gear（41）It is connected, it is characterised in that：It further include oil tight skeleton（5）And oil exit pipe
（6）, two oil tight skeletons（5）It is sheathed on shaft（3）On, and it is formed with collection chamber between two oil tight skeletons（51）, the pump
Body（1）It is equipped with outage（100）, the outage（100）With collection chamber（51）It is connected, oil exit pipe（6）One end is connected to row
Oilhole（100）On, the other end and the pump housing（1）On inlet port be connected；
The pump housing（1）It is equipped with axis hole（13）, shaft（3）Rotating support is in the axis hole（13）It is interior, and one end and transmission gear
（2）It is connected, the other end and pump oil driving gear（41）It is connected；
The axis hole（13）Including axle bearing mount portion（130）With oil sealing portion（131）, the oil tight skeleton（5）Set on oil sealing portion
（131）It is interior；
The pump housing（1）It is equipped with oil leak hole（110）, the oil leak hole（110）One end and axis hole oil sealing portion（131）It is connected
It is logical, the other end and the pump housing（1）On inlet port be connected；
The oil sealing portion（131）Inner wall be equipped with ring-shaped runner（1310）, two oil tight skeletons（5）It is placed in the runner
（1310）Both sides, and collection chamber（51）With the runner（1310）It connects；
The shaft（3）It is equipped with circlip（8）, the oil tight skeleton（5）Pass through circlip（8）It is sealed in oil sealing portion
（131）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610773936.7A CN106194721B (en) | 2016-08-31 | 2016-08-31 | A kind of gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610773936.7A CN106194721B (en) | 2016-08-31 | 2016-08-31 | A kind of gear pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106194721A CN106194721A (en) | 2016-12-07 |
| CN106194721B true CN106194721B (en) | 2018-09-14 |
Family
ID=58089379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610773936.7A Active CN106194721B (en) | 2016-08-31 | 2016-08-31 | A kind of gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106194721B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006063889A (en) * | 2004-08-26 | 2006-03-09 | Shin Caterpillar Mitsubishi Ltd | Pump device |
| CN201412298Y (en) * | 2009-05-22 | 2010-02-24 | 广州精益汽车空调有限公司 | Shaft seal device for vehicle air conditioning compressor |
| CN201679706U (en) * | 2010-05-21 | 2010-12-22 | 嘉利特荏原泵业有限公司 | Bearing body oil seal device for pump |
| CN204663871U (en) * | 2015-04-07 | 2015-09-23 | 金湖县常盛动力机械配件有限公司 | A kind of gear fuel supply pump |
| CN206054294U (en) * | 2016-08-31 | 2017-03-29 | 金湖县常盛动力机械配件有限公司 | A kind of gear pump |
-
2016
- 2016-08-31 CN CN201610773936.7A patent/CN106194721B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106194721A (en) | 2016-12-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |