CN2854129Y - Electric superhigh pressure hydraulic oil pump - Google Patents
Electric superhigh pressure hydraulic oil pump Download PDFInfo
- Publication number
- CN2854129Y CN2854129Y CN 200520048086 CN200520048086U CN2854129Y CN 2854129 Y CN2854129 Y CN 2854129Y CN 200520048086 CN200520048086 CN 200520048086 CN 200520048086 U CN200520048086 U CN 200520048086U CN 2854129 Y CN2854129 Y CN 2854129Y
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- Prior art keywords
- pump
- plunger
- oil
- pressure
- low pressure
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- Expired - Fee Related
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- Reciprocating Pumps (AREA)
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Abstract
Disclosed is an electric super high pressure fluid pump, the pump comprises a hydraulic reservoir, a generator, a high-low second level pump, a channel for oiling and a control valve. A pump body of a high pressure pump plunger and a low pressure gear pump are provided under the generator, the pump body of a high pressure pump plunger is provided with two to six radial high pressure pump plungers firmly; an eccentric axis is arranged under the axis of the generator, a ring is arranged outside the eccentric axis, ramming pistons of all the plunger pumps are pushed by the ring in alternating motion, a clutch under the eccentric axis is connected with the low pressure pump gear axis. A combination valve is arranged, which comprises a high pressure easing valve and a three-position four-way valve, the oil strain tube of the low pressure gear pump extends into the fuel-oil tank through a fuel filter, the oil-out of the gear pump connects with oil-in of the plunger pumps through an one-way valve, oil-out of the plunger pumps converge and connects with high pressure easing valve of the combination valve and forms a two-stage pump with an one-way valve connecting the entry side of the three-position four-way valve of the combination valve.
Description
Technical field
The utility model relates to a kind of high pressure oil pump that is used for hydraulic machinery, particularly a kind of electronic super high pressure hydraulic gear-plunger two stage pump.
Background technique
General title pressure 〉=630Mpa is a ultrahigh pressure in the Hydraulic power tools industry.At present, electronic ultrahigh-pressure hydraulic oil pump is generally the secondary plunger pump.Wherein the secondary radial plunger pump is by hydraulic oil container, high low pressure secondary plunger pump, oil circuit and control valve are formed, plunger is the five equilibrium arrangement radially along the center of circle in pump case, the driven by motor eccentric shaft compresses each plunger successively, make low pressure pump to the high-pressure service pump oil extraction, high-pressure service pump output high-pressure and hydraulic oil, plunger backhaul oil suction is finished by spring or connecting rod.Secondary plunger pump oil absorption is few, and discharge capacity is little, and high voltage startup speed is slow, and efficient is low.
Summary of the invention
The purpose of this utility model is intended to propose a kind of improved electronic ultrahigh-pressure hydraulic oil pump, the technological scheme of the two stage pump of combining by futuramic low pressure gear pump and high-pressure radial plunger pump, overcome the deficiencies in the prior art, reach fast, big, the energy-efficient purpose of oil absorption of high pressure starting.
The technical solution of the utility model is to realize like this.A kind of electronic ultrahigh-pressure hydraulic oil pump, mainly comprise hydraulic oil container, motor, high low pressure two stage pump, oil circuit and control valve, it is characterized in that described motor below is provided with a high-pressure plunger pump pump housing and a low pressure gear pump successively, is fixed with the high-pressure plunger pump that 2～6 radial radiation shapes are arranged in the described high-pressure plunger pump pump housing; This motor shaft lower end is an eccentric shaft, the outer sheathed lasso of this eccentric shaft, and the plunger that promotes each plunger pump by this lasso is reciprocating, and described eccentric shaft lower end mat one coupling links to each other with described low pressure gear pump axle; One combination brake switch and proporting is arranged, and this combination brake switch and proporting is made up of high-pressure overflow valve and three-position four-way valve; The oil-filter pipe of described low pressure gear pump stretches in the described fuel tank by an oil purifier, the oil outlet of gear pump is connected with the filler opening of each plunger pump by an one-way valve respectively, the oil outlet tube of each plunger pump converges high-pressure overflow valve back and in the described combination brake switch and proporting and is connected, and be connected to the input end of the three-position four-way valve in the described combination brake switch and proporting by an one-way valve, form a two stage pump.
Also be provided with a low pressure unloading valve in the described combination brake switch and proporting, the oil outlet of described low pressure gear pump is connected with this low pressure unloading valve, and is connected to the input end of the three-position four-way valve in the described combination brake switch and proporting by an one-way valve.
The case lid of described fuel tank is a support, fixes described motor and combination brake switch and proporting on this case lid, and the described pump housing is located under the motor, and described low pressure gear pump is located under the pump housing.
Advantage of the present utility model is: oil drain quantity is big, and it is quick to boost, and reaches high and low fluid rapidly and presses, and is energy-efficient.The oily passage of joining of oil pump is realized the high and low pressure separately, can adapt to different working condition requirements.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of Fig. 1 mesolow gear pump and high-pressure plunger pump;
Fig. 3 is a fundamental diagram of the present utility model;
Fig. 4 is a plunger pump work schematic representation of the present utility model.
Among the figure: 1 motor, 2 pump housings, 3 eccentric shafts, 4 oil purifiers, 5 oil-filter pipes, 6 high-pressure outlet joints, 7 low tension outlet joints, 8 fuel tanks, 9 combination brake switch and proporting, 10 pressure gauges, 11 castors, 12 frames, 13 low pressure gear pumps, dish on 14,15 lower walls, 16 hexagonal lassos, 17 piston springs, 18 bearings, 19 in line check valves, 20 fuel-displaced one-way valves, 21 plungers, 22 hyperbaric chambers, 23 one-way valve steel balls, 24 check valve springs, 25 screws, 26 back-up rings, 27 packing rings, 28 oil throughs, 29 high-pressure plunger pumps, 30 oil inlet pipes, 31 low pressure oil ducts, 32 high-pressure service pump oil outlet tubes, 33 high-pressure overflow valves, 34 motor shafts, 35 low pressure unloading valves, 36 three-position four-way valves, 37 oil throughs.
Mode of execution
Now the utility model is described in further detail in conjunction with an embodiment and accompanying drawing thereof.
Referring to Fig. 1-Fig. 4, with the two stage pump of low pressure gear pump 13 with high-pressure plunger pump 29 compositions.Be fixed with the high-pressure plunger pump 29 that 3 radial radiation shapes are arranged in the pump housing 2.Combination brake switch and proporting 9 is by low pressure unloading valve 35, and high-pressure overflow valve 33 and three-position four-way valve 36 are formed.Motor shaft 34 lower ends drive 13 of low pressure gear pumps, and the eccentric shaft 3 of motor shaft 34 belows promotes hexagonal lasso 16 simultaneously, and reciprocating by the plunger 21 of hexagonal lasso 16 each plunger pump 29 of promotion.The oil-filter pipe 5 of low pressure gear pump 13 stretches in the fuel tank 8 by oil purifier 4.The oil outlet of low pressure gear pump 13 is connected with the filler opening 30 of each plunger pump by an one-way valve respectively, the oil outlet tube 32 of each plunger pump converges high-pressure overflow valve 33 back and in the described combination brake switch and proporting and is connected, and is connected to the input end of the three-position four-way valve 36 in the described combination brake switch and proporting by an one-way valve; The case lid of described fuel tank 8 is a support, fixed electrical machinery 1 and combination brake switch and proporting 9 on the case lid of fuel tank 8, and the pump housing 2 is located under the motor, and low pressure gear pump 13 is located under the pump housing 2; 21 plungers of described 3 high-pressure plunger pumps 29 are mutually 120 ° inwardly and arrange radially, be fixedly arranged between the upward dish 14 and lower wall 15 of the pump housing 2, motor shaft 34 and 3 high-pressure plunger pumps 29 corresponding parts are provided with hexagonal lasso 16, and motor 1 mat hexagonal lasso 16 drives plunger 21 motions of each plunger pump 29.Have 4 at fuel tank 8 and be fit to mobile castor 11.
The utility model is work like this: starting electrical machinery 1, eccentric shaft 3 rotates, hydraulic oil enters low pressure gear pump 13 by oil purifier 4 and oil-filter pipe 5, low pressure gear pump 13 is pumped into oil inlet pipe 30 in the lower wall 15 to low-pressure hydraulic oil by oil through 28, the oil inlet pipe 30 1 ends (see figure 2) that is connected with low tension outlet joint 7, its the other end is connected with low pressure oil duct 31, and the in line check valve 19 that low-pressure hydraulic oil is formed by steel ball 23 and spring 24 enters hyperbaric chamber 22.Hexagonal lasso 16 on eccentric shaft 3 promotes plunger 21 and compression plunger spring 17, plunger 21 moves in hyperbaric chamber 22, close in line check valve 19 and open fuel-displaced one-way valve 20, fuel-displaced one-way valve 20 and the oil through 37 of high-pressure oil duct 32 on last dish 14 that the high-pressure and hydraulic oil of 630Mpa is formed by steel ball 23 and spring 24 enter combination brake switch and proporting 9 with oily merging of all the other two strands of high-pressure and hydraulics through high-pressure outlet joint 6.
Claims (5)
1. an electronic super high pressure hydraulic radial plunger oil pump mainly comprises hydraulic oil container, motor, high low pressure two stage pump, oil circuit and control valve, it is characterized in that
Described motor below is provided with a high-pressure plunger pump pump housing and a low pressure gear pump successively, is fixed with the high-pressure plunger pump that 2～6 radial radiation shapes are arranged in the described high-pressure plunger pump pump housing; This motor shaft lower end is an eccentric shaft, the outer sheathed lasso of this eccentric shaft, and the plunger that promotes each plunger pump by this lasso is reciprocating, and described eccentric shaft lower end mat one coupling links to each other with described low pressure gear pump axle;
One combination brake switch and proporting is arranged, and this combination brake switch and proporting is made up of high-pressure overflow valve and three-position four-way valve;
The oil-filter pipe of described low pressure gear pump stretches in the described fuel tank by an oil purifier, the oil outlet of gear pump is connected with the filler opening of each plunger pump by an one-way valve respectively, the oil outlet tube of each plunger pump converges high-pressure overflow valve back and in the described combination brake switch and proporting and is connected, and be connected to the input end of the three-position four-way valve in the described combination brake switch and proporting by an one-way valve, form a two stage pump.
2. electronic ultrahigh-pressure hydraulic oil pump according to claim 1, it is characterized in that also being provided with in the described combination brake switch and proporting low pressure unloading valve, the oil outlet of described low pressure gear pump is connected with this low pressure unloading valve, and is connected to the input end of the three-position four-way valve in the described combination brake switch and proporting by an one-way valve.
3. electronic ultrahigh-pressure hydraulic oil pump according to claim 1 and 2, it is characterized in that the case lid with described fuel tank is a support, fix described motor and combination brake switch and proporting on this case lid, the described high-pressure plunger pump pump housing is located under the motor, and described low pressure gear pump is located under the pump housing.
4. electronic ultrahigh-pressure hydraulic oil pump according to claim 3, it is characterized in that described plunger pump is 3, plunger is mutually 120 ° and arranges radially, be fixedly arranged between the upward dish and lower wall of the described pump housing, the outer sheathed hexagonal lasso of eccentric shaft under the described motor, this hexagonal lasso of described motor mat drives the plunger motion of each plunger pump.
5. electronic ultrahigh-pressure hydraulic oil pump according to claim 4 is characterized in that described fuel tank has 3-4 castor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520048086 CN2854129Y (en) | 2005-12-28 | 2005-12-28 | Electric superhigh pressure hydraulic oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520048086 CN2854129Y (en) | 2005-12-28 | 2005-12-28 | Electric superhigh pressure hydraulic oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854129Y true CN2854129Y (en) | 2007-01-03 |
Family
ID=37580760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520048086 Expired - Fee Related CN2854129Y (en) | 2005-12-28 | 2005-12-28 | Electric superhigh pressure hydraulic oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2854129Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147952A (en) * | 2013-03-19 | 2013-06-12 | 佛山华液动力科技有限公司 | Ultrahigh pressure axial plunger oil pump |
| CN111207052A (en) * | 2019-12-31 | 2020-05-29 | 平高集团有限公司 | Oil pump assembly |
-
2005
- 2005-12-28 CN CN 200520048086 patent/CN2854129Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147952A (en) * | 2013-03-19 | 2013-06-12 | 佛山华液动力科技有限公司 | Ultrahigh pressure axial plunger oil pump |
| CN103147952B (en) * | 2013-03-19 | 2016-04-20 | 广东华液动力科技有限公司 | A kind of ultrahigh pressure axial plunger oil pump |
| CN111207052A (en) * | 2019-12-31 | 2020-05-29 | 平高集团有限公司 | Oil pump assembly |
| CN111207052B (en) * | 2019-12-31 | 2022-01-28 | 平高集团有限公司 | Oil pump assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |