CN206054294U - A kind of gear pump - Google Patents
A kind of gear pump Download PDFInfo
- Publication number
- CN206054294U CN206054294U CN201621000815.0U CN201621000815U CN206054294U CN 206054294 U CN206054294 U CN 206054294U CN 201621000815 U CN201621000815 U CN 201621000815U CN 206054294 U CN206054294 U CN 206054294U
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- CN
- China
- Prior art keywords
- oil
- gear
- pump
- rotating 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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- Rotary Pumps (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model discloses a kind of gear pump, including travelling gear, rotating shaft, pump oil driving gear, pump oil driven gear and it is provided with the pump housing of lubricating cavity and gear cavity, the pump oil driving gear and pump oil driven gear are rotated located at the gear intracavity, and the two is meshed, travelling gear is located at lubrication intracavity, and travelling gear is connected with pump oil driving gear by rotating shaft, also include oil tight skeleton and oil exit pipe, described in two, oil tight skeleton is sheathed in rotating shaft, and two be formed with collection chamber between oil tight skeleton, the pump housing is provided 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.This utility model simple structure, good sealing effect pollute little, and fluid utilization rate is high.
Description
Technical field：
This utility model is related to a kind of gear pump.
Background technology：
Sealing between existing gear pump gear chamber and lubricating cavity is generally the life-time service realizing by sealing ring
Afterwards, the fluid of gear intracavity can gradually overflow across sealing ring and penetrate into lubrication intracavity, so as to dilute the lubricating oil of lubrication intracavity, make
Into the damage of gear pump.
Therefore, it is necessory to be improved to solve the deficiency of prior art to prior art.
The content of the invention：
This utility model is to provide a kind of gear pump to solve the problems, such as above-mentioned prior art.
The technical scheme adopted by this utility model has：Gear pump, including travelling gear, rotating shaft, pump oil driving gear, pump
Oily driven gear and the pump housing of lubricating cavity and gear cavity is provided with, the pump oil driving gear and pump oil driven gear are rotated and set
In the gear intracavity, and the two is meshed, and travelling gear is located at lubrication intracavity, and travelling gear is by rotating shaft and pump oil active
Gear is connected, and also including oil tight skeleton and oil exit pipe, described in two, oil tight skeleton is sheathed in rotating shaft, and shape between two oil tight skeletons
Into there is collection chamber, the pump housing is provided with outage, and the outage is connected with collection chamber, and oil exit pipe one end is connected to outage
On, the other end is connected with the inlet port on the pump housing.
Further, the pump housing is provided with axis hole, and axis of rotation is supported in the axis hole, and one end and travelling 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 in oil sealing portion.
Further, the inwall in the oil sealing portion is provided with annular runner, and two oil tight skeletons are placed in the runner both sides,
And collection chamber is connected with the runner.
Further, the pump housing is provided 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 rotating shaft is provided with circlip, and the oil tight skeleton is sealed in oil sealing portion by circlip
It is interior.
This utility model has the advantages that：
In use, if there is the leakage of gear cavity inner fluid, the fluid in leakage can be first passed through this utility model
Oil leak hole enters inlet port and is recycled, if the fluid of leakage is more and when overflowing across oil tight skeleton, this overflows across oil sealing bone
The fluid of frame can be discharged and be recycled in inlet port through oil exit pipe through outage, oil leak hole, outage with
And oil tight skeleton collective effect, it is effectively prevented the fluid entrance lubrication intracavity of gear intracavity, and the oil leaked from gear cavity
Liquid energy is enough recycled, and does not pollute the environment, and resulting beneficial effect is：This utility model simple structure, sealing effect
It is really good, pollute little, fluid utilization rate is high.
Description of the drawings：
Fig. 1 is this utility model sectional structure chart.
Sectional structure charts of the Fig. 2 for this utility model middle pump body.
Specific embodiment：
Below in conjunction with the accompanying drawings this utility model is further described.
As depicted in figs. 1 and 2, a kind of gear pump of this utility model, including the pump housing 1, travelling gear 2, rotating shaft 3, pump oil master
Moving gear 41 and pump oil driven gear 42, are provided with lubricating cavity 11, gear cavity 12, inlet port and force feed mouth on the pump housing 1, inhale
Hydraulic fluid port is connected with the gear cavity 12 on the pump housing 1 with force feed mouth, and pump oil driving gear 41 and pump oil driven gear 42 are rotated
In gear cavity 12, and pump oil driving gear 41 and pump oil driven gear 42 are meshed, and travelling gear 2 is located at lubricating cavity 11
Interior, rotating shaft 3 is rotated in the pump housing 1, and one end is connected with travelling gear 2, and the other end is connected with pump oil driving gear 41.
This utility model is to prevent the fluid on pump housing gear chamber 12 from entering in lubricating cavity 11, is arranged with rotating shaft 3
Collection chamber 51 is formed between two oil tight skeletons 5, and two oil tight skeleton 5, outage 100 is provided with the pump housing 1, the oil extraction
Hole 100 is connected with collection chamber 51.Oil exit pipe 6 is connected with the outage 100 of the pump housing, the suction on the oil exit pipe 6 and the pump housing 1
Hydraulic fluid port is connected, and the fluid for overflowing across oil tight skeleton can be discharged through outage 100 and be entered in inlet port through oil exit pipe 6.Thus,
This utility model is by providing special draining path rather than being leaked to lubricating cavity solving hydraulic oil by sealing means simply
11 problem, while the oil being recovered to by special draining path returns to oil supply system, makes the oily recoverable of leakage.
For ease of installing rotating shaft 3, axis hole 13 is provided with the pump housing 1, rotating shaft 3 is by bearing rotating support in the axis hole 13
Interior, and one end stretched in and be connected with travelling 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 in oil sealing portion 131.For preferably
Axially position is carried out to oil tight skeleton 5, circlip 8 is provided with rotating shaft 3, oil tight skeleton 5 is by the sealing positioning of circlip 8
In oil sealing portion 131.
Annular runner 1310 is provided with the inwall 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.
This utility model is that the fluid being better protected from gear cavity 12 is entered in lubricating cavity 11, is provided with and lets out on the pump housing 1
Oilhole 110, one end of the oil leak hole 110 are connected with the oil sealing portion 131 of axis hole 13, the inlet port phase on the other end and the pump housing 1
Connection.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, some improvement can also be made on the premise of without departing from this utility model principle, these improvement also should be regarded as
Protection domain of the present utility model.
Claims (6)
1. a kind of gear pump, including travelling gear（2）, rotating shaft（3）, pump oil driving gear（41）, pump oil driven gear（42）With
And it is provided with lubricating cavity（11）And gear cavity（12）The pump housing（1）, the pump oil driving gear（41）With pump oil driven gear（42）
Rotate located at the gear cavity（12）It is interior, and the two is meshed, travelling gear（2）Located at lubricating cavity（11）It is interior, and driving cog
Wheel（2）By rotating shaft（3）With pump oil driving gear（41）It is connected, it is characterised in that：Also include oil tight skeleton（5）And oil exit pipe
（6）, oil tight skeleton described in two（5）It is sheathed on rotating shaft（3）On, and collection chamber is formed between two oil tight skeletons（51）, the pump
Body（1）It is provided 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.
2. gear pump as claimed in claim 1, it is characterised in that：The pump housing（1）It is provided with axis hole（13）, rotating shaft（3）Turn
It is dynamic to be supported on the axis hole（13）It is interior, and one end and travelling gear（2）It is connected, the other end and pump oil driving gear（41）It is connected.
3. gear pump as claimed in claim 2, it is characterised in that：The axis hole（13）Including axle bearing mount portion（130）And oil
Envelope portion（131）, the oil tight skeleton（5）Located at oil sealing portion（131）It is interior.
4. gear pump as claimed in claim 3, it is characterised in that：The oil sealing portion（131）Inwall be provided with annular
Runner（1310）, two oil tight skeletons（5）It is placed in the runner（1310）Both sides, and collection chamber（51）With the runner（1310）Mutually pass through
It is logical.
5. gear pump as claimed in claim 3, it is characterised in that：The pump housing（1）It is provided with oil leak hole（110）, the draining
Hole（110）One end and axis hole oil sealing portion（131）It is connected, the other end and the pump housing（1）On inlet port be connected.
6. gear pump as claimed in claim 3, it is characterised in that：The rotating shaft（3）It is provided with circlip（8）, the oil
Envelope skeleton（5）By circlip（8）It is sealed in oil sealing portion（131）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621000815.0U CN206054294U (en) | 2016-08-31 | 2016-08-31 | A kind of gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621000815.0U CN206054294U (en) | 2016-08-31 | 2016-08-31 | A kind of gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206054294U true CN206054294U (en) | 2017-03-29 |
Family
ID=58379104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621000815.0U Active CN206054294U (en) | 2016-08-31 | 2016-08-31 | A kind of gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206054294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194721A (en) * | 2016-08-31 | 2016-12-07 | 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 CN201621000815.0U patent/CN206054294U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194721A (en) * | 2016-08-31 | 2016-12-07 | 金湖县常盛动力机械配件有限公司 | A kind of gear pump |
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| GR01 | Patent grant |