CN203926230U - Three pump type hydraulic excavator oil supplying devices - Google Patents
Three pump type hydraulic excavator oil supplying devices Download PDFInfo
- Publication number
- CN203926230U CN203926230U CN201420298931.XU CN201420298931U CN203926230U CN 203926230 U CN203926230 U CN 203926230U CN 201420298931 U CN201420298931 U CN 201420298931U CN 203926230 U CN203926230 U CN 203926230U
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- Prior art keywords
- pump
- gear
- double
- pto device
- axial piston
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- Expired - Lifetime
Links
- 239000003921 oil Substances 0.000 abstract description 33
- 239000010720 hydraulic oil Substances 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model provides a kind of three pump type hydraulic excavator oil supplying devices, comprises double-pump type axial piston pump, also comprises gear pump, and described gear pump is by oil hydraulic pump PTO device and double-pump type axial piston pump is engagement type links together.Gear pump power output gear in described oil hydraulic pump PTO device is meshed with the double-pump type axial piston pump power gear in double-pump type axial piston pump; The gear pump splined shaft of described gear pump is meshed with the gear pump power output gear in oil hydraulic pump PTO device.Described oil hydraulic pump PTO device is fixed on double-pump type axial piston pump by PTO device set screw, and gear pump is fixed on oil hydraulic pump PTO device by gear pump set screw.The utility model, by increasing gear pump, has effectively increased the flow of hydraulic oil, improves the working efficiency of oil hydraulic pump, has filled up hydraulic shovel and has not existed three pumps to combine the blank of oil supplying devices.
Description
Technical field
The utility model relates to excavator device, specifically a kind of three pump type hydraulic excavator oil supplying devices.
Background technique
At present, the equal middle double pump oil supply structure that adopts of the hydraulic shovel of common tonnage on market, adopt the hydraulic shovel of two oil pump feed structures when swing arm decline, dipper receipts, scraper bowl are received action (above three kinds of action engines are in small-power state), can be because the fuel delivery of double pump is not enough, make excavator slow motion and with emptying phenomenon.So research and develop a kind of excavator oil supplying device that can increase fuel delivery, anti-suction sky, seem particularly important.
PTO device refers to power take-off, the same with double-pump type axial piston pump with gear pump, is prior art.
Summary of the invention
The purpose of this utility model is to provide a kind of three pump type hydraulic excavator oil supplying devices, can effectively increase the fuel delivery of hydraulic shovel oil supply system, avoids excavator action slack-off, improves the working efficiency of excavator.
The purpose of this utility model can realize by following technical solution:
The purpose of this utility model can realize by following technical solution:
This three pump type hydraulics excavator oil supplying device comprises double-pump type axial piston pump, also comprises gear pump, and described gear pump is by oil hydraulic pump PTO device and double-pump type axial piston pump is engagement type links together.
The purpose of this utility model also can realize by following technical solution:
Further, described in this three pump type hydraulics excavator oil supplying device, the gear pump power output gear in oil hydraulic pump PTO device is meshed with the double-pump type axial piston pump power gear in double-pump type axial piston pump; The gear pump splined shaft of described gear pump is meshed with the gear pump power output gear in oil hydraulic pump PTO device.
Further, oil hydraulic pump PTO device is fixed on double-pump type axial piston pump by PTO device set screw described in this three pump type hydraulics excavator oil supplying device, and gear pump is fixed on oil hydraulic pump PTO device by gear pump set screw.
Compared to prior art, the utlity model has following beneficial effect:
The utility model, by increasing gear pump, has effectively increased the flow of hydraulic oil, improves the working efficiency of oil hydraulic pump, has filled up hydraulic shovel and has not existed three pumps to combine the blank of oil supplying devices.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of three pump type hydraulic excavator oil supplying devices of the present utility model.
In figure: double-pump type axial piston pump 1, PTO device set screw 2, double-pump type axial piston pump power output gear 3, oil hydraulic pump PTO device 4, gear pump power output gear 5, gear pump splined shaft 6, gear pump set screw 7, gear pump 8.
Embodiment
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, yet accompanying drawing only provides the use of reference with explanation, is not used for the utility model to be limited.
With reference to accompanying drawing 1, this three pump type hydraulics excavator oil supplying device is mainly comprised of double-pump type axial piston pump 1, gear pump 8, and described gear pump 8 links together by oil hydraulic pump PTO device 4 and double-pump type axial piston pump 1.Wherein the gear pump power output gear 5 in oil hydraulic pump PTO device 4 is meshed with the double-pump type axial piston pump power gear 3 in double-pump type axial piston pump 1.The gear pump splined shaft 6 of described gear pump 8 is meshed with the gear pump power output gear 5 in oil hydraulic pump PTO device 4, he is fixed on described oil hydraulic pump PTO device 4 on double-pump type axial piston pump 1 by PTO device set screw 2, and gear pump 8 is fixed on oil hydraulic pump PTO device 4 by gear pump set screw 7.
When excavator is normally worked, diesel engine drives double-pump type axial piston pump 1 to rotate, by double-pump type axial piston pump power output gear 3 by transmission of power to the gear pump power output gear 5 in PTO device 4, thereby by transmission of power to gear pump splined shaft 6, driven gear pump 8 rotates, gear pump 8 work.
The foregoing is only preferred embodiment of the present utility model, non-in order to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (3)
1. three pump type hydraulic excavator oil supplying devices, comprise double-pump type axial piston pump, it is characterized in that, also comprise gear pump, and described gear pump is by oil hydraulic pump PTO device and double-pump type axial piston pump is engagement type links together.
2. three pump type hydraulic excavator oil supplying devices according to claim 1, is characterized in that, the gear pump power output gear in described oil hydraulic pump PTO device is meshed with the double-pump type axial piston pump power gear in double-pump type axial piston pump; The gear pump splined shaft of described gear pump is meshed with the gear pump power output gear in oil hydraulic pump PTO device.
3. three pump type hydraulic excavator oil supplying devices according to claim 1, it is characterized in that, described oil hydraulic pump PTO device is fixed on double-pump type axial piston pump by PTO device set screw, and gear pump is fixed on oil hydraulic pump PTO device by gear pump set screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298931.XU CN203926230U (en) | 2014-06-06 | 2014-06-06 | Three pump type hydraulic excavator oil supplying devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298931.XU CN203926230U (en) | 2014-06-06 | 2014-06-06 | Three pump type hydraulic excavator oil supplying devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926230U true CN203926230U (en) | 2014-11-05 |
Family
ID=51822046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420298931.XU Expired - Lifetime CN203926230U (en) | 2014-06-06 | 2014-06-06 | Three pump type hydraulic excavator oil supplying devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926230U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006037A (en) * | 2014-06-06 | 2014-08-27 | 山东中川液压有限公司 | Three-pump type hydraulic excavator oil supply device |
-
2014
- 2014-06-06 CN CN201420298931.XU patent/CN203926230U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006037A (en) * | 2014-06-06 | 2014-08-27 | 山东中川液压有限公司 | Three-pump type hydraulic excavator oil supply device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20160616 Granted publication date: 20141105 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20161216 Granted publication date: 20141105 |
|
| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170613 Granted publication date: 20141105 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200613 Granted publication date: 20141105 |
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| PD01 | Discharge of preservation of patent | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |
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| CX01 | Expiry of patent term |