CN203285640U - Auxiliary pump type plunger pump with flow distributed by valve - Google Patents
Auxiliary pump type plunger pump with flow distributed by valve Download PDFInfo
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- CN203285640U CN203285640U CN2013203325345U CN201320332534U CN203285640U CN 203285640 U CN203285640 U CN 203285640U CN 2013203325345 U CN2013203325345 U CN 2013203325345U CN 201320332534 U CN201320332534 U CN 201320332534U CN 203285640 U CN203285640 U CN 203285640U
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- oil
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- plunger
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Abstract
The utility model discloses an auxiliary pump type plunger pump with flow distributed by a valve. The auxiliary pump type plunger pump with the flow distributed by the valve is composed of an electromotor, an auxiliary gear pump and a main pump body. The auxiliary pump type plunger pump with the flow distributed by the valve is structurally formed by the electromotor, a coupling, a main shaft, a left end cover, a radial ball bearing, a swash plate, a plunger, a spring seat, a backspring, a bush, an oil outlet, an oil discharging valve, an oil inlet valve, a radial ball bearing, an oil pipe, an oil inlet pipe, the auxiliary gear pump, a right end cover, a bolt, a key, an outer cylinder barrel ring, an cylinder barrel, a bolt and a bearing. A shaft communicating structure is adopted, the shaft of the auxiliary gear pump is directly inserted into the main pump shaft, the auxiliary gear pump supplies oil to a main pump, and therefore oil supply of the main pump relies on the auxiliary gear pump to supply oil instead of relying on negative pressure oil absorption, the problems that due to the fact that the oil adsorption of a traditional plunger pump is not sufficient, cavitation easily occurs and noise is caused are avoided, and meanwhile the working pressure of the pump is improved. A structure with the flow distributed by the valve is adopted, and the problems that the leakage of the traditional plunger pump with the flow distributed by a disc is severe due to the fact that a flow distributing disc is severely abraded, volume efficiency is lowered, and the service life is short are solved.
Description
Technical field
The utility model relates to the pressure of liquid and carries.
Background technique
Plunger pump is an important device of hydraulic system, it is a kind of typical volume-type hydraulic pump,, by prime mover driven, the mechanical energy of input is converted into the pressure energy of liquid, being input in system and going with the form of pressure, flow again, is the power source of hydraulic system.Its pressure is high, compact structure, Flow-rate adjustment is convenient, therefore in needing high pressure, large flow, powerful system and the occasion that need to regulate of flow, as being widely used on double column planing machine, broaching machine, hydraulic press, engineering machinery, mine metallurgical machinery, boats and ships.
At present, on market, the plunger pump of extensive use has two kinds of radial plunger pump and axial piston pumps.The plunger radial of radial plunger pump is arranged and is arranged in cylinder body, and cylinder body is driven and rotated together with plunger by prime mover, has certain throw of eccentric between cylinder body and stator, completes suction oil process when cylinder body drives the plunger rotation.Because the radial plunger pump radial dimension is large, structure is more complicated, and suction capacity is poor, and oil distributing shaft is subject to the radially effect of uneven hydraulic coupling, is easy to wearing and tearing, thereby defines the raising of its rotating speed and pressure.Axial piston pump be with a plurality of plunger axis on the circumference that is configured in a common cylinder body, and make the plunger center line a kind of pump parallel with cylinder center line.Its flow mode adopts the thrust plate flow more, rated pressure is 31.5Mpa, is up to 35Mpa, and complex structure, processing difficulties, thrust plate particularly, processing technology is complicated, makes product seem that price is higher in generality is used, and the wearing and tearing of thrust plate, easily cause internal leakage, volumetric efficiency reduces, thereby causes working life low.
Summary of the invention
The purpose of this utility model is: a kind of high-pressure high-flow oil hydraulic pump is provided, and rated pressure is 40Mpa, is up to 60Mpa, flow 18 (36) L/min.
Technical solution of the present utility model is: the auxiliary formula valve of the utility model pump assigning plunger pump adopts the axis structure, the axle of auxiliary gear pump directly inserts in main pump shaft, by auxiliary gear pump to the main pump fuel feeding, the fuel feeding of main pump is not to rely on the negative pressure oil suction like this, but rely on the equipment gear oil pump feed, avoid the insufficient easy generation air pocket of traditional plunger pump oil suction, produced the problem of noise, improved simultaneously the working pressure of pump.
The utility model dish flow mode that plunger pump is traditional changes the valve flow into, owing to there is no thrust plate, the fretting wear problem between cylinder barrel and thrust plate has not just existed, and has solved the conventional disc assigning plunger pump because the leakage that the thrust plate wearing and tearing cause is serious, volumetric efficiency reduces, the shortcoming that the life-span is low.
The auxiliary formula valve of pump assigning plunger pump unit mechanisms comprises: motor, auxiliary gear pump, main pump body; The auxiliary formula valve of described pump assigning plunger pump mechanism comprises: motor, coupling, main shaft, left end cap, radial ball bearing, swash plate, plunger, spring seat, retracting spring, lining, oil outlet, draining valve, oiling valve, bearing, oil pipe, oil inlet pipe, auxiliary gear pump, right end cap, bolt, key, cylinder barrel outer ring, cylinder barrel, bolt, bearing.
Motor is connected with main shaft by coupling, and the axle of auxiliary gear pump directly inserts in main shaft, by key, with main shaft, is connected, and realizes transmission of power.Left end cap is connected with cylinder barrel by bolt, the cylinder barrel outer ring is a tight fit in the cylinder barrel outside, end cap compresses the cylinder barrel outer ring by bolt and is connected with cylinder barrel, auxiliary gear pump is fixed on right end cap by screw, auxiliary gear pump, right end cap, cylinder barrel outer ring, cylinder barrel, left end cap form an integral body, can be fixed on relevant device and work.Main shaft is bearing on left end cap, right end cap by radial ball bearing, realizes freely rotating.Swash plate is connected on main shaft by key, by the end face bearing, is bearing on left end cap, and swash plate rotates with main shaft.
Oil pipe is connected with auxiliary gear pump oil outlet, end cap respectively, realizes that auxiliary gear pump pressure oil transmits to main pump body.
Evenly make a call to the 6 horizontal, vertical holes of cover in cylinder barrel, 6 holes, upper end fill respectively 6 cover draining valves, and right-hand member 6 holes fill respectively 6 cover oiling valves, left end 6 holes fill respectively 6 linings, the in-built plunger of lining, shoot spring abutment, retracting spring on plunger, 6 plungers are withstood on swash plate, when swash plate rotates, 6 plungers are reciprocating respectively, plunger is to left movement, and draining valve cuts out, oiling valve is opened oil suction, and plunger is to left movement, draining valve is opened, oiling valve cuts out, and is fuel-displaced; 6 oil outlets communicate with the groove on the cylinder barrel outer ring, and the oil of discharge converges mutually in groove, by the oil outlet that is connected on the cylinder barrel outer ring, outwards carry, and by working line, pressure oil is delivered on work mechanism, realizes work purpose of the present utility model.
The utlity model has following advantage:
1, the dish flow mode that plunger pump is traditional changes the valve flow into, owing to there is no thrust plate, the fretting wear problem between cylinder barrel and thrust plate has not just existed, and has solved the conventional disc assigning plunger pump because the leakage that the thrust plate wearing and tearing cause is serious, volumetric efficiency reduces, the shortcoming that the life-span is low.Simultaneously, adopt the valve flow to improve contamination resistance.
2, adopt a low pressure gear pump as auxiliary gear pump, to the main pump fuel feeding, the fuel feeding of main pump is not to rely on the negative pressure oil suction like this, but rely on the equipment gear oil pump feed, avoid the insufficient easy generation air pocket of traditional plunger pump oil suction, produced the problem of noise, improved simultaneously the working pressure of pump.
3, oil distributing valve adopts monolithic construction, has improved the sealing of pump hyperbaric chamber, has simplified the general structure of pump, has reduced manufacture cost, has solved the strength problem when oil distributing valve bears high pressure.
4, traditional dish assigning plunger pump can't be avoided the fretting wear between cylinder barrel and thrust plate, thereby causes working life low, in let out seriously, volumetric efficiency is low.Thereby the utility model adopts flow-distributing valve to replace thrust plate to solve this problem, has improved the volumetric efficiency of pump, has extended the working life of pump.
5, cylinder barrel and the pump housing unite two into one, and adopt monolithic construction, have improved the high voltage bearing ability of pump, have also simplified the general structure of pump simultaneously, make more compact structure, and radial dimension is less, save manufacture cost.
6, plunger withstands on swash plate by retracting spring, realizes to-and-fro motion respectively, and simple in structure, required precision is low.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1, motor, 2, coupling, 3, main shaft, 4, left end cap, 5, radial ball bearing, 6, swash plate, 7, plunger, 8, spring seat, 9, retracting spring, 10, lining, 11, oil outlet, 12, draining valve, 13, oiling valve, 14, radial ball bearing, 15, oil pipe, 16, oil inlet pipe, 17, auxiliary gear pump, 18, right end cap, 19, bolt, 20, key, 21, cylinder barrel outer ring, 22, cylinder barrel, 23, bolt, 24, bearing.
Embodiment
The utility model reaches goal of the invention by the following technical solutions:
The axle of motor 1 is connected with pump main shaft 3 by coupling 2, and the axle of auxiliary gear pump 16 inserts pump main shaft 3 other ends, by key 20, with main shaft 3, is connected, and realizes transmission of power.The rotation of motor 1 passes to pump main shaft 3 by coupling 2, and pump main shaft 3 drives swash plate by key and auxiliary gear pump is rotated.
Be processed with on cylinder barrel 22 6 pack into, oil road and plunger trepanning, plunger bushing 10 is arranged in the plunger trepanning, plunger bushing 10 relies on its outside threads to be fastened in the plunger trepanning.Interior installation one radial ball bearing 5 of left end cap 4, install a thrust-bearing 24 on swash plate 6.Main shaft 3 relies on heart ball bearing bearing 5 and 14 and supports, and main shaft 3 drives swash plate 6 by key and rotates.Plunger 7 end faces are sphere, and its diameter is greater than plunger diameter, thereby the formation flange is equipped with spring seat 8 and retracting spring 9 after flange.When motor 1 rotated, by the effect of coupling 2 and key, the rotating shaft of main shaft 3, swash plate 6, auxiliary gear pump 16 was rotated simultaneously.
The utility model is respectively equipped with independently oil distributing valve body, but directly is processed with oil inlet hole and oil outlet on cylinder barrel 22, in establish steel ball and spring, overcome problem and contamination resistance problem that the oil distributing valve valve body bears high pressure.
The utility model dish flow mode that plunger pump is traditional changes the valve flow into, owing to there is no thrust plate, the fretting wear problem between cylinder barrel and thrust plate has not just existed, and has solved the conventional disc assigning plunger pump because the leakage that the thrust plate wearing and tearing cause is serious, volumetric efficiency reduces, the shortcoming that the life-span is low.
The auxiliary formula valve of the utility model pump assigning plunger pump adopts a low pressure gear pump as auxiliary gear pump, auxiliary gear pump and main pump are coaxial, its filler opening connected tank, oil outlet connects the filler opening of main pump, the fuel feeding of main pump is not to rely on the negative pressure oil suction like this, but relies on the equipment gear oil pump feed, has avoided the insufficient easy generation air pocket of traditional plunger pump oil suction, produce the problem of noise, improved simultaneously the working pressure of pump.
Claims (1)
1. the auxiliary formula valve of pump assigning plunger pump consists of motor, auxiliary gear pump, main pump body; Described main pump body mechanism comprises: main shaft, left end cap, radial ball bearing, swash plate, plunger, spring seat, retracting spring, lining, oil outlet, draining valve, oiling valve, bearing, oil pipe, oil inlet pipe, auxiliary gear pump, right end cap, bolt, key, cylinder barrel outer ring, cylinder barrel, bolt, bearing; Described motor is connected with main shaft by coupling, and the axle of auxiliary gear pump directly inserts in main shaft, by key, with main shaft, is connected, and realizes transmission of power; Described left end cap is connected with cylinder barrel by bolt, the cylinder barrel outer ring is a tight fit in the cylinder barrel outside, end cap compresses the cylinder barrel outer ring by bolt and is connected with cylinder barrel, and auxiliary gear pump is fixed on right end cap by screw, and auxiliary gear pump, right end cap, cylinder barrel outer ring, cylinder barrel, left end cap form an integral body; Described oil pipe is connected with auxiliary gear pump oil outlet, end cap respectively; Described main shaft is bearing on left end cap, right end cap by radial ball bearing; Swash plate is connected on main shaft by key, by the end face bearing, is bearing on left end cap, and swash plate rotates with main shaft; Evenly make a call to the 6 horizontal, vertical holes of cover in cylinder barrel, 6 holes, upper end fill respectively 6 cover draining valves, and right-hand member 6 holes fill respectively 6 cover oiling valves, left end 6 holes fill respectively 6 linings, the in-built plunger of lining, shoot spring abutment, retracting spring on plunger, 6 plungers are withstood on swash plate, when swash plate rotates, 6 plungers are reciprocating respectively, plunger is to left movement, and draining valve cuts out, oiling valve is opened oil suction, and plunger is to left movement, draining valve is opened, oiling valve cuts out, and is fuel-displaced; 6 oil outlets communicate with the groove on the cylinder barrel outer ring, and the oil of discharge converges mutually in groove, by the oil outlet that is connected on the cylinder barrel outer ring, outwards carry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203325345U CN203285640U (en) | 2013-06-09 | 2013-06-09 | Auxiliary pump type plunger pump with flow distributed by valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203325345U CN203285640U (en) | 2013-06-09 | 2013-06-09 | Auxiliary pump type plunger pump with flow distributed by valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285640U true CN203285640U (en) | 2013-11-13 |
Family
ID=49542008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203325345U Expired - Fee Related CN203285640U (en) | 2013-06-09 | 2013-06-09 | Auxiliary pump type plunger pump with flow distributed by valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203285640U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277279A (en) * | 2013-06-09 | 2013-09-04 | 淮阴工学院 | Pump assisted type valve distributing plunger pump |
| CN107035680A (en) * | 2017-06-20 | 2017-08-11 | 宁波禄腾精密机械有限公司 | Piston structure and plunger pump |
| CN110067725A (en) * | 2019-03-13 | 2019-07-30 | 钟彪 | A kind of non-through axis plunger pump of sliding plate supporting type or motor |
-
2013
- 2013-06-09 CN CN2013203325345U patent/CN203285640U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277279A (en) * | 2013-06-09 | 2013-09-04 | 淮阴工学院 | Pump assisted type valve distributing plunger pump |
| CN107035680A (en) * | 2017-06-20 | 2017-08-11 | 宁波禄腾精密机械有限公司 | Piston structure and plunger pump |
| CN110067725A (en) * | 2019-03-13 | 2019-07-30 | 钟彪 | A kind of non-through axis plunger pump of sliding plate supporting type or motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20150609 |
|
| EXPY | Termination of patent right or utility model |