CN106194721A - A kind of gear pump - Google Patents
A kind of gear pump Download PDFInfo
- Publication number
- CN106194721A CN106194721A CN201610773936.7A CN201610773936A CN106194721A CN 106194721 A CN106194721 A CN 106194721A CN 201610773936 A CN201610773936 A CN 201610773936A CN 106194721 A CN106194721 A CN 106194721A
- Authority
- CN
- China
- Prior art keywords
- oil
- gear
- pump
- rotating shaft
- cavity
- 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.)
- Granted
Links
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 pump, including travelling gear, rotating shaft, pump oil driving gear, pump oil driven gear and be provided with the pump housing of lubricating cavity and gear cavity, described pump oil driving gear and pump oil driven gear all rotate to be located in described gear cavity, and the two is meshed, travelling gear is located in lubricating cavity, and travelling gear is connected with pump oil driving gear by rotating shaft, also include oil tight skeleton and oil exit pipe, oil tight skeleton described in two is sheathed in rotating shaft, and two be formed with collection chamber between oil tight skeleton, the described pump housing is provided with outage, this 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.Present configuration is simple, and good sealing effect pollutes little, and fluid utilization rate is high.
Description
Technical field:
The present invention relates to a kind of gear pump.
Background technology:
Sealing between existing gear pump gear chamber and lubricating cavity is generally and is realized by sealing ring, after life-time service, and tooth
The fluid of wheel intracavity can gradually overflow across sealing ring and penetrate in lubricating cavity, thus can dilute the lubricating oil in lubricating cavity, causes tooth
The damage of wheel pump.
Therefore, necessary prior art improves to solve the deficiency of prior art.
Summary of the invention:
The present invention is in order to solve the problem of above-mentioned prior art existence and to provide a kind of gear pump.
The technical solution adopted in the present invention has: gear pump, including travelling gear, rotating shaft, pump oil driving gear, pump oil from
Moving gear and be provided with the pump housing of lubricating cavity and gear cavity, described pump oil driving gear and pump oil driven gear all rotate and are located at institute
Stating in gear cavity, and the two is meshed, travelling gear is located in lubricating cavity, and travelling gear is by rotating shaft and pump oil driving gear
Being connected, also include oil tight skeleton and oil exit pipe, described in two, oil tight skeleton is sheathed in rotating shaft, and is formed between two oil tight skeletons
Collection chamber, the described pump housing is provided with outage, and this outage 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 described pump housing is provided with axis hole, and axis of rotation is supported in this axis hole, and one end and travelling gear phase
Even, the other end is connected with pump oil driving gear.
Further, described axis hole includes axle bearing mount portion and oil sealing portion, and described oil tight skeleton is located in oil sealing portion.
Further, the inwall in described oil sealing portion is provided with annular runner, and two oil tight skeletons are placed in this runner both sides,
And collection chamber connects with this runner.
Further, the described pump housing is provided with oil leak hole, and one end of this 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, described rotating shaft is provided with circlip, and described oil tight skeleton is sealed in oil sealing portion by circlip
In.
There is advantages that
In use, if there is the leakage of gear cavity inner fluid, the fluid in leakage can first pass through oil leak hole row to the present invention
Enter inlet port to recycle, if the fluid of leakage is more and when overflowing across oil tight skeleton, this overflows across the fluid of oil tight skeleton
Can discharge through outage and recycle in oil exit pipe enters inlet port, oil leak hole, outage and oil sealing bone
Frame acts on jointly, and the fluid that is effectively prevented in gear cavity enters in lubricating cavity, and the fluid of leakage can be by from gear cavity
Recycling, do not pollute the environment, consequent provide the benefit that: present configuration is simple, good sealing effect pollutes little,
Fluid utilization rate is high.
Accompanying drawing illustrates:
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.
Detailed description of the invention:
The present invention is further illustrated below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, one gear pump of the present invention, including the pump housing 1, travelling gear 2, rotating shaft 3, pump oil driving tooth
Wheel 41 and pump oil driven gear 42, be provided with lubricating cavity 11, gear cavity 12, inlet port and force feed mouth, inlet port on the pump housing 1
All connecting with the gear cavity 12 on the pump housing 1 with force feed mouth, pump oil driving gear 41 and pump oil driven gear 42 all rotate and are located at
In gear cavity 12, and pump oil driving gear 41 and pump oil driven gear 42 are meshed, and travelling gear 2 is located in lubricating cavity 11, turn
Axle 3 rotates and is located 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.
The present invention is to prevent the fluid on pump housing gear chamber 12 from entering in lubricating cavity 11, is arranged with two in rotating shaft 3
It is formed with collection chamber 51 between oil tight skeleton 5, and this two oil tight skeleton 5, the pump housing 1 is provided with outage 100, this outage
100 are connected with collection chamber 51.The outage 100 of the pump housing connects and has oil exit pipe 6, this oil exit pipe 6 and the oil suction on the pump housing 1
Mouth is connected, and the fluid overflowing across oil tight skeleton can discharge through outage 100 and enter in inlet port through oil exit pipe 6.Thus, originally
Invention is to be solved hydraulic oil by sealing means simply be leaked to asking of lubricating cavity 11 by providing special draining path
Topic, the oil being simultaneously recovered to by special draining path returns to oil supply system, makes the oily recoverable of leakage.
For ease of installing rotating shaft 3, being provided with axis hole 13 on the pump housing 1, rotating shaft 3 passes through bearing rotating support in this axis hole 13
In, and one end stretch in lubricating cavity 11 in be connected with travelling gear 2, it is interior with pump oil driving gear 41 phase 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 located in oil sealing portion 131.For preferably
Axially positioning oil tight skeleton 5, be provided with circlip 6 in rotating shaft 3, oil tight skeleton 5 seals location by circlip 6
In oil sealing portion 131.
Being provided with annular runner 1310 on the inwall in oil sealing portion 131, two oil tight skeletons 5 are placed in this runner 1310 liang
Side, the collection chamber 51 between these runner 1310 and two oil tight skeletons 5 connects, and outage 100 is connected with this runner 1310.
The present invention is that the fluid being better protected from gear cavity 12 enters in lubricating cavity 11, is provided with oil leak hole on the pump housing 1
110, one end of this 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 the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, can also make some improvement under the premise without departing from the principles of the invention, these improvement also should be regarded as the present invention's
Protection domain.
Claims (6)
1. a 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 the pump housing (1) of lubricating cavity (11) and gear cavity (12), described pump oil driving gear (41) and pump oil driven gear (42)
All rotating and be located in described gear cavity (12), and the two is meshed, travelling gear (2) is located in lubricating cavity (11), and driving cog
Wheel (2) is connected with pump oil driving gear (41) by rotating shaft (3), it is characterised in that: also include oil tight skeleton (5) and oil exit pipe
(6), oil tight skeleton described in two (5) is sheathed in rotating shaft (3), and is formed with collection chamber (51), described pump between two oil tight skeletons
Body (1) is provided with outage (100), and this outage (100) is connected with collection chamber (51), and oil exit pipe (6) one end is connected to row
On oilhole (100), the other end is connected with the inlet port on the pump housing (1).
2. gear pump as claimed in claim 1, it is characterised in that: the described pump housing (1) is provided with axis hole (13), and rotating shaft (3) turns
Moving and be supported in this axis hole (13), and one end is connected with travelling gear (2), the other end is connected with pump oil driving gear (41).
3. gear pump as claimed in claim 2, it is characterised in that: described axis hole (13) includes axle bearing mount portion (130) and oil
Envelope portion (131), described oil tight skeleton (5) is located in oil sealing portion (131).
4. gear pump as claimed in claim 3, it is characterised in that: the inwall of described oil sealing portion (131) is provided with annular
Runner (1310), two oil tight skeletons (5) are placed in this runner (1310) both sides, and collection chamber (51) passes through mutually with this runner (1310)
Logical.
5. gear pump as claimed in claim 3, it is characterised in that: the described pump housing (1) is provided with oil leak hole (110), this draining
The one end in hole (110) is connected with the oil sealing portion (131) of axis hole, and the other end is connected with the inlet port on the pump housing (1).
6. gear pump as claimed in claim 3, it is characterised in that: described rotating shaft (3) is provided with circlip (6), described oil
Envelope skeleton (5) is sealed in oil sealing portion (131) by circlip (6).
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 true CN106194721A (en) | 2016-12-07 |
| CN106194721B 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) |
Citations (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
Patent Citations (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106194721B (en) | 2018-09-14 |
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| PB01 | Publication | ||
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| GR01 | Patent grant |