CN104006037B - A kind of three pump type hydraulic excavator fuellers - Google Patents
A kind of three pump type hydraulic excavator fuellers Download PDFInfo
- Publication number
- CN104006037B CN104006037B CN201410248806.2A CN201410248806A CN104006037B CN 104006037 B CN104006037 B CN 104006037B CN 201410248806 A CN201410248806 A CN 201410248806A CN 104006037 B CN104006037 B CN 104006037B
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- pump
- gear
- hydraulic
- double
- pto device
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Abstract
The invention discloses a kind of three pump type hydraulic excavator fuellers, comprise double-pump type axial plunger pump, also comprise gear pump, described gear pump is by hydraulic pump PTO device and double-pump type axial plunger pump is engagement type links together. Gear pump power output gear in described hydraulic pump PTO device is meshed with the double-pump type axial plunger pump power gear in double-pump type axial plunger pump; The gear pump splined shaft of described gear pump is meshed with the gear pump power output gear in hydraulic pump PTO device. Described hydraulic pump PTO device is fixed on double-pump type axial plunger pump by PTO device hold-down screw, and gear pump is fixed on hydraulic pump PTO device by gear pump hold-down screw. The present invention, by increasing gear pump, has effectively increased the flow of hydraulic oil, improves the operating efficiency of hydraulic pump, has filled up hydraulic crawler excavator and has not existed three pumps to combine the blank of fuellers.
Description
Technical field
The present invention relates to excavator device, specifically a kind of three pump type hydraulic excavator fuellers.
Background technology
At present, all middle double pump oil supply structures that adopts of the hydraulic crawler excavator of common tonnage on market, adopt the hydraulic crawler excavator of two oil pump feed structures in the time that swing arm decline, dipper receipts, scraper bowl are received action (above three kinds of action engines are in small-power state), can be due to the fuel delivery deficiency of double pump, make excavator slow motion and with emptying phenomenon. Seem particularly important so research and develop a kind of excavator fueller that can increase fuel delivery, anti-suction sky.
PTO device refers to PTO, the same with double-pump type axial plunger pump with gear pump, is prior art.
Summary of the invention
The object of the present invention is to provide a kind of three pump type hydraulic excavator fuellers, can effectively increase the fuel delivery of hydraulic crawler excavator oil supply system, avoid excavator action slack-off, improve the operating efficiency of excavator.
In order to reach above-mentioned purpose, the present invention has adopted following technical scheme, and a kind of three pump type hydraulic excavator fuellers, comprise double-pump type axial plunger pump, also comprise gear pump, described gear pump is by hydraulic pump PTO device and double-pump type axial plunger pump is engagement type links together.
Gear pump power output gear in described hydraulic pump PTO device is meshed with the double-pump type axial plunger pump power gear in double-pump type axial plunger pump; The gear pump splined shaft of described gear pump is meshed with the gear pump power output gear in hydraulic pump PTO device.
Described hydraulic pump PTO device is fixed on double-pump type axial plunger pump by PTO device hold-down screw, and gear pump is fixed on hydraulic pump PTO device by gear pump hold-down screw.
Compared to prior art, the present invention has following beneficial effect:
The present invention, by increasing gear pump, has effectively increased the flow of hydraulic oil, improves the operating efficiency of hydraulic pump, has filled up hydraulic crawler excavator and has not existed three pumps to combine the blank of fuellers.
Brief description of the drawings
Fig. 1 is the schematic diagram of a kind of three pump type hydraulic excavator fuellers of the present invention.
In figure: double-pump type axial plunger pump 1, PTO device hold-down screw 2, double-pump type axial plunger pump power output gear 3, hydraulic pump PTO device 4, gear pump power output gear 5, gear pump splined shaft 6, gear pump hold-down screw 7, gear pump 8.
Detailed description of the invention
Relevant detailed description of the present invention and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing only provides the use of reference with explanation, is not used for the present invention to be limited.
With reference to accompanying drawing 1, a kind of three pump type hydraulic excavator fuellers, are mainly made up of double-pump type axial plunger pump 1, gear pump 8, and described gear pump 8 links together by hydraulic pump PTO device 4 and double-pump type axial plunger pump 1. Wherein the gear pump power output gear 5 in hydraulic pump PTO device 4 is meshed with the double-pump type axial plunger pump power gear 3 in double-pump type axial plunger pump 1. The gear pump splined shaft 6 of described gear pump 8 is meshed with the gear pump power output gear 5 in hydraulic pump PTO device 4, he is fixed on described hydraulic pump PTO device 4 on double-pump type axial plunger pump 1 by PTO device hold-down screw 2, and gear pump 8 is fixed on hydraulic pump PTO device 4 by gear pump hold-down screw 7.
In the time that excavator is normally worked, diesel engine drives double-pump type axial plunger pump 1 to rotate, by double-pump type axial plunger pump power output gear 3, power is delivered on the gear pump power output gear 5 in PTO device 4, thereby power is passed on gear pump splined shaft 6, driven gear pump 8 rotates, and gear pump 8 is worked.
The foregoing is only preferred embodiment of the present invention, non-in order to limit the scope of the claims of the present invention, other use the equivalence of patent spirit of the present invention to change, and all should all belong to the scope of the claims of the present invention.
Claims (1)
1. three pump type hydraulic excavator fuellers, comprise double-pump type axial plunger pump, it is characterized in that, also comprise gear pump, and described gear pump is by hydraulic pump PTO device and double-pump type axial plunger pump is engagement type links together; Gear pump power output gear in described hydraulic pump PTO device is meshed with the double-pump type axial plunger pump power gear in double-pump type axial plunger pump; The gear pump splined shaft of described gear pump is meshed with the gear pump power output gear in hydraulic pump PTO device; Described hydraulic pump PTO device is fixed on double-pump type axial plunger pump by PTO device hold-down screw, and gear pump is fixed on hydraulic pump PTO device by gear pump hold-down screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410248806.2A CN104006037B (en) | 2014-06-06 | 2014-06-06 | A kind of three pump type hydraulic excavator fuellers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410248806.2A CN104006037B (en) | 2014-06-06 | 2014-06-06 | A kind of three pump type hydraulic excavator fuellers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104006037A CN104006037A (en) | 2014-08-27 |
| CN104006037B true CN104006037B (en) | 2016-05-11 |
Family
ID=51366862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410248806.2A Expired - Fee Related CN104006037B (en) | 2014-06-06 | 2014-06-06 | A kind of three pump type hydraulic excavator fuellers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104006037B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916136B (en) * | 2018-08-06 | 2024-05-14 | 泉州鑫豪工程机械科技有限公司 | Hydraulic system of mini-excavator |
| CN114992116A (en) * | 2022-05-09 | 2022-09-02 | 潍柴动力股份有限公司 | Hydraulic pump and construction machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5857504A (en) * | 1981-10-02 | 1983-04-05 | Hitachi Constr Mach Co Ltd | Controller for hydraulic circuit |
| DE10256923B4 (en) * | 2002-12-05 | 2013-10-24 | Liebherr-France S.A. | Method and device for motion damping of hydraulic cylinders of mobile machines |
| CN201128923Y (en) * | 2007-11-29 | 2008-10-08 | 贵州枫阳液压有限责任公司 | Multi-path valve |
| CN101886405B (en) * | 2010-07-21 | 2012-01-11 | 山河智能装备股份有限公司 | Main valve of small type hydraulic excavator with energy-saving excavation and high-efficient land leveling |
| CN103184732A (en) * | 2013-03-21 | 2013-07-03 | 大连理工大学 | Double-power system for dynamic compactor |
| CN203926230U (en) * | 2014-06-06 | 2014-11-05 | 山东中川液压有限公司 | Three pump type hydraulic excavator oil supplying devices |
-
2014
- 2014-06-06 CN CN201410248806.2A patent/CN104006037B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104006037A (en) | 2014-08-27 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20161114 Address after: 276715 Linshu Economic Development Zone, Shandong, Linyi Patentee after: Linshu County Rui Rui Xinxing Industry Development Co., Ltd. Address before: 276715 Linyi Chang Linzhu County, Linshu Province, West Street, No. 112, No. Patentee before: Shandong Zhong Chuan hydraulic pressure Co., Ltd |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20170606 |
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| CF01 | Termination of patent right due to non-payment of annual fee |