CN109236595A - A kind of multiple rows of multiple-action inner curved digital variable radial-plunger pump of rotor driving - Google Patents
A kind of multiple rows of multiple-action inner curved digital variable radial-plunger pump of rotor driving Download PDFInfo
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- CN109236595A CN109236595A CN201811106463.0A CN201811106463A CN109236595A CN 109236595 A CN109236595 A CN 109236595A CN 201811106463 A CN201811106463 A CN 201811106463A CN 109236595 A CN109236595 A CN 109236595A
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- Prior art keywords
- plunger
- oil
- cavity
- inner curve
- rotor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/047—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the outer ends of the cylinders
- F04B1/0474—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the outer ends of the cylinders with two or more serially arranged radial piston-cylinder units
- F04B1/0476—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the outer ends of the cylinders with two or more serially arranged radial piston-cylinder units located side-by-side
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
Abstract
The invention discloses a kind of multiple rows of multiple-action inner curved rotors to drive digital variable radial-plunger pump, the inner curve guide rail driving plunger roller assembly opened up on inner curve rotor and backhaul pressing plate based on rotation executes reciprocating motion, the closed plunger cavity that plunger hole in plunger and shell is formed, its volume periodically increases and reduces as piston reciprocation moves, it is all embedded in respectively in the channel being connected in the housing with each plunger cavity and is mounted with oil sucting one-way valve, oil extraction check valve and high speed valve, to realize the suction oil function of pump, and pass through the open/close states of active control high speed valve valve port and opening and closing order, realize that pump smoothly carries out becoming displacement control adjusting with approximately linear changing rule from maximum pump discharge to zero delivery operating condition.The present invention is adapted to speed operation, by the design of multiple-action inner curved guide rail and multiple rows of inner curve rotor, easily reaches huge discharge, solves current hydraulic pump and is difficult to realize low speed huge discharge and becomes discharge capacity adjusting operating condition problem.
Description
Technical field
The present invention relates to technical field of hydraulic elements, more particularly to a kind of multiple rows of multiple-action inner curved rotor driving number to become
Measure radial plunger pump.
Background technique
With a large amount of uses of fossil fuel, the reduction of fossil fuel starts to restrict the development of human economic society, fossil
Increasingly destruction of the emission to environment after fuel combustion promotes the mankind to find the reproducible environmentally friendly energy.Wind energy is
A kind of safe and clean, reproducible green energy resource belongs in renewable energy before technology is most mature, on the largest scaleization develops
A kind of energy on way.Traditional wind power generating set generallys use the AC excitation double-fed power generation using step-up gear as main transmission
The multiple permanent magnet synchronous generator (PMSG) that machine (DFIG) and non-gear box directly drive.The environment and operating condition of wind-power electricity generation are general
Compare badly, so the DFIG maintenance cost highest containing gear-box, and the high-incidence season of gearbox fault appears in after putting into operation
5 ~ 8 years between, this 15 ~ 20 years projected life with wind energy conversion system, there are obvious gaps；For the PMSG of non-gear box structure, have
The disadvantages of number of pole-pairs of permanent magnet direct driving motor is excessive, bulky, total amount is overweight, with high costs.In order to overcome the above problems, it answers
It is come into being with the wind power generating set of hydraulic technique.
This target of total energy demand 15% is accounted for reach the year two thousand twenty non-fossil energy, novel wind generator group is ground
System and equipment will be increasingly becoming the new growing point of Main way and commanding elevation and Wind Power Generation Industry that Wind Power Generation Industry develops.For reality
This existing target, high pressure low speed huge discharge hydraulic pump of the research and development application in wind-powered electricity generation field are of great significance: hydraulic wind energy conversion system
The hydraulic pump used in group is the core element of the wind power generating set, in order to adapt to field of wind-force rugged environment and wind-force hair
The characteristics of requirement of electric high-power, hydraulic pump must be a high-pressure pump, while have both the slow-speed of revolution, huge discharge.
Using conventional hydraulic pump form realized under speed operation pump huge discharge be it is unpractical, this often makes
The volume that must be pumped is very huge.High pressure low speed huge discharge has both and becomes displacement control function, the hydraulic pump of current this technical characterstic
Be rarely reported, main cause has: 1. realizing the huge discharge of pump, main path first is that being realized by the revolving speed for improving pump.
But with the increase of revolving speed, the abrasion of hydraulic pump inner assembly and inertia force can become larger, to influence the service life of pump；2. giving
Prime mover that hydraulic pump provides direct driving force is usually motor or engine, and these prime mover realize the work of high-efficiency operation
Revolving speed tends to exceed 1000 r/min, and when pump is in low speed operation, centre needs to connect gearbox.So working as hydraulic pump work
Make in speed operation, be on the one hand difficult to find ideal matching power source, on the other hand be contradicted with pump huge discharge trend,
The big advantage of hydraulic technique power to weight ratio cannot be embodied.It is immature based on traditional market demand and low speed huge discharge hydraulic pump technology
The characteristics of, restrict the development of low speed huge discharge hydraulic pump always.And as wind-power electricity generation, power generation with marine energy etc. are emerging strategic
The rise of industry and flourish, it is anticipated that the application prospect of low speed huge discharge hydraulic pump will be boundless.
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of multiple rows of multiple-action inner curved for summary of the invention
Rotor drives digital variable radial-plunger pump, and when rotor rotates a circle, single plunger can complete multiple suction oil, purpose
It is to solve conventional hydraulic pump in low speed work for the change displacement control of the low speed huge discharge and radial plunger pump of realizing hydraulic pump
It is difficult to realize huge discharge problem under condition.
In order to achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of multiple rows of multiple-action inner curved rotor drives digital variable radial-plunger pump, it is characterised in that: including shell, in shell
Between be rotatably equipped with by prime mover control rotation transmission shaft, be formed with annular chamber between the shell and transmission shaft；It is described
It is equipped with the inner curve rotor being fixedly set on transmission shaft in annular chamber, is equipped with several radially radial separations in the shell
The annular outer wall of the plunger hole of arrangement, inner curve rotor is equipped with annular groove corresponding with plunger hole site, annular groove bottom
Portion is communicated with annular rail cavity, and rail cavity bottom surface is the decelerations inner curve guide rails such as equal acceleration, and rail cavity top surface is to wait acceleration etc.
Deceleration inner curve backhaul guide rail.
Plunger is mounted in each plunger hole, plunger base is inserted into rail cavity after both passing through annular groove and plunger
Insertion end be equipped with transverse holes, roller is rotatably equipped in transverse holes, roller both ends distinguish fixing sleeve and idler wheel is housed, and inner curve turns
When son is rotated with transmission shaft, each idler wheel does oscillation cycle along decelerations inner curve backhaul guide rails such as equal acceleration in rail cavity
Property roll, meanwhile, plunger head back and forth moves up and down in corresponding plunger hole respectively.
The oil sucting cavity of annular is equipped in the shell positioned at the side of plunger hole, is equipped with annular positioned at the other side of plunger hole
Oil-discharging cavity, shell is equipped with the inlet port that is connected to oil sucting cavity and the oil discharge outlet being connected to oil-discharging cavity；The oil sucting cavity with
It has been respectively communicated with suction passage between each plunger hole, has been respectively communicated with oil drain passage between oil-discharging cavity and each plunger hole；Often
It is mounted on oil sucting one-way valve in a suction passage, oil extraction check valve is mounted in each oil drain passage；Corresponding oil suction is logical
Crisscrossing channels are formed between road, oil drain passage and plunger hole, the top portion of each crisscrossing channels is mounted on high speed number
Word switch valve；The intermediate position of each crisscrossing channels is by corresponding oil sucting one-way valve, oil extraction check valve, plunger and high speed number
Word switch valve surrounds closed plunger cavity；Each high speed valve valve port one end is connected to corresponding plunger cavity, another
End is connected to corresponding oil sucting cavity.
The multiple rows of multiple-action inner curved rotor of described one kind drives digital variable radial-plunger pump, it is characterised in that: described
Shell includes the forward and backward shell being rotatably installed on transmission shaft respectively, and forward and backward shell pairing is connected to one；Front housing
External side is fixedly connected with the drive end bearing bracket being sleeved on transmission shaft, is fixedly connected with after being sleeved on transmission shaft on the outside of back casing
End cap；Axle envelope is installed between drive end bearing bracket and transmission shaft.
The multiple rows of multiple-action inner curved rotor of described one kind drives digital variable radial-plunger pump, it is characterised in that: introversion
Line rotor is rotatably installed on transmission shaft by spline, and the outer side edges of inner curve rotor annular outer wall are equipped with open ring along position
Shape step one, inner curve rotor lateral surface are fixed with the backhaul pressing plate for the annular being sleeved on transmission shaft, correspond on backhaul pressing plate
The position of ring-shaped step slot is equipped with ring-shaped step two, is combined to form between ring-shaped step two and the ring-shaped step one of inner curve rotor
Annular groove；Annular groove two sides of the bottom are respectively equipped with the rail cavity that ring-shaped step three forms annular, wait the decelerations such as acceleration introversion
Line guide rail is located on inner curve rotor, and the decelerations inner curve backhaul guide rails such as acceleration is waited to be located on backhaul pressing plate.
The multiple rows of multiple-action inner curved rotor of described one kind drives digital variable radial-plunger pump, it is characterised in that: shell
Oil suction is fixed on the outside of body with fluid, oil suction is equipped with annular groove cavity, shape between annular groove cavity and outer housing with fluid
At oil sucting cavity.
The multiple rows of multiple-action inner curved rotor of described one kind drives digital variable radial-plunger pump, it is characterised in that: front end
It covers and is located at up and down the two of oil sucting cavity between procapsid, between rear end cap and back casing and between oil suction stream ligand and procapsid
Two sides up and down between side, front housing and the rear housing positioned at oil-discharging cavity are mounted on O-ring.
The multiple rows of multiple-action inner curved rotor of described one kind drives digital variable radial-plunger pump, it is characterised in that: introversion
The decelerations inner curves such as the acceleration such as the inner curve section of line guide rail is, cosine acceleration motion rule inner curve, sinusoidal acceleration fortune
Dynamic rule inner curve, trapezoidal acceleration characteristics of motion inner curve or parabola acceleration movement rule inner curve.
The axle envelope is mounted between transmission shaft and drive end bearing bracket, and the transmission shaft passes through spline by prime mover driven, simultaneously
Connect by spline with inner curve rotor, the drive end bearing bracket is fixedly mounted on procapsid by screw, while drive end bearing bracket with
O-ring is installed between procapsid.The procapsid is mounted on transmission shaft by fore bearing support, and solid by screw and back casing
Fixed connection, the fore bearing inner ring are mounted on transmission shaft, by the shoulder of the shaft shoulder, procapsid on transmission shaft, drive end bearing bracket and
Gasket and circlip axial limiting, the back casing are linked together by screw and procapsid, and are supported on transmission by rear bearing
On axis, the rear bearing inner ring is mounted on transmission shaft, by the gasket and card on the shoulder, rear end cap and transmission shaft of back casing
Spring axial limiting, the rear end cap are fixedly connected on back casing by screw, while O is equipped between rear end cap and back casing
Type circle.
The inner curve rotor is mounted on transmission shaft by spline connection, is provided with etc. on inner curve rotor and to be accelerated etc. to slow down
Inner curve guide rail, the roller are mounted on the circular hole of plunger base by axis hole clearance fit, and the idler wheel is fixedly mounted on
On roller, the roller and idler wheel by inner curve rotor etc. the decelerations inner curve guide supporting such as accelerate, and led in inner curve
Oscillation cycle rolls on rail, and by roller and roller supporting, plunger head is installed by axis hole clearance fit for the plunger bottom end
In the plunger hole opened up in the front housing, with the rotation of transmission shaft, plunger head is continually performed reciprocal fortune in plunger hole
Dynamic, the backhaul pressing plate is supported by transmission shaft, and is fixedly connected by screw with inner curve rotor, axial to be limited by axle sleeve and circlip
Position, the oil sucting one-way valve are embedded in the suction passage for being mounted on and being connected with the plunger cavity formed by plunger and plunger hole,
The oil extraction check valve, is embedded in the oil drain passage for being mounted on and being connected with plunger cavity, the high speed valve, installation
In the outer passage being connected with plunger cavity.
Oil sucting one-way valve forward direction when plunger cavity volume increases is opened, and low pressure oil flows into plunger cavity by oil sucting cavity, institute
It states oil sucting cavity and is made of oil suction with the oil suction duct of the annular groove cavity in fluid and oil sucting one-way valve tail portion in procapsid, it is described
Oil suction is fixedly connected by screw with procapsid with fluid, and oil suction is with the annular groove oil suction cavity two sides installation opened up in fluid
Have an O-ring, the oil extraction check valve when plunger cavity volume reduce hydraulic oil be squeezed pressure increase to cracking pressure when forward direction beat
It opens, high pressure oil is expelled in oil-discharging cavity from plunger cavity through oil extraction check valve pressure, and the oil-discharging cavity is by the annular that opens up in back casing
The oil extraction duct of oil extraction cavity and oil extraction check valve tail portion is constituted, and is equipped with O-ring, the suction in annular groove oil extraction cavity two sides
Oil pocket is connected with the inlet port of pump and oil discharge outlet respectively with oil-discharging cavity, the high speed valve be mounted on procapsid with
In the duct that plunger cavity is connected, the duct of connection high speed valve valve port and oil sucting cavity is offered in the front housing,
Duct outer rim is equipped with O-ring, and high speed valve valve port one end is connected with plunger cavity, the valve port other end and oil sucting cavity phase
The on-off of oil sucting cavity and plunger cavity is realized in connection by the opening and closing of active control high speed valve valve port, based on certain
Control strategy may be implemented pump change displacement control adjust.
The oil sucting one-way valve, oil extraction check valve and high speed valve number have it is multiple, it is corresponding with number of plungers,
The plunger is radially radial to be evenly distributed in the front housing, and the plunger is all by the inner curve guide rail on this inner curve rotor
Support and driving, and simultaneously under the inner curve backhaul railway effect on backhaul pressing plate, so that the every rotation of inner curve rotor is gone around,
Same plunger can realize that completing multiple suction oil moves back and forth, and same structural principle is adapted to multiple inner curve rotors,
If multiple inner curve rotors are sequentially arranged on same transmission shaft by spline connection, then the plunger, oil sucting one-way valve,
Oil extraction check valve and high speed valve etc. can be with this similar structural principle duplication transplanting on other inner curve rotors, structure
Digital variable radial-plunger pump is driven at multiple rows of multiple-action inner curved rotor.
Compared with prior art, advantages of the present invention are as follows:
The multiple rows of multiple-action inner curved rotor of one kind provided by the present invention drives digital variable radial-plunger pump, kinetic characteristics
It is specially adapted to low speed huge discharge operating condition, in such random slow-speed of revolution such as such as hydraulic wind power generating set, wind drive
It drives in operating condition, as the low speed huge discharge Variable Control plunger pump in pump motor transmission device, it will there is extraordinary answer
With prospect, solves current conventional hydraulic pump and be difficult to realize low speed huge discharge and become discharge capacity adjusting operating condition problem.
Detailed description of the invention
Fig. 1 is axis sectional view of the invention.
Fig. 2 is monnolithic case figure of the present invention and inlet port schematic diagram.
Fig. 3 is monnolithic case figure of the present invention and oil discharge outlet schematic diagram.
Fig. 4 is etc. the decelerations inner curve guide rail cross-sectional view such as to accelerate.
Label in Fig. 1-4 are as follows: axle envelope 1, transmission shaft 2, O-ring 3, drive end bearing bracket 4, fore bearing 5, procapsid 6, O-ring 7 are inhaled
Oil pocket 8, oil sucting one-way valve 9, O-ring 10, oil suction match fluid 11, high speed valve 12, O-ring 13, oil extraction check valve 14,
O-ring 15, oil-discharging cavity 16, back casing 17, screw 18, backhaul pressing plate 19, rear end cap 20, O-ring 21, circlip 22, gasket 23, card
Spring 24, screw 25, rear bearing 26, axle sleeve 27, oil discharge outlet 28, plunger 29, roller 30, idler wheel 31, inner curve rotor 32, gasket
33, circlip 34, inlet port 35 waits the decelerations inner curve guide rails 36 such as acceleration, waits the decelerations inner curve backhaul guide rails 37 such as acceleration, plunger
Chamber 38.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.
As shown in Figure 1,2,3, 4, a kind of multiple rows of multiple-action inner curved rotor drives digital variable radial-plunger pump, including axis
Envelope 1, transmission shaft 2, O-ring 3, drive end bearing bracket 4, fore bearing 5, procapsid 6, O-ring 7, oil sucting cavity 8, oil sucting one-way valve 9, O-ring
10, fluid 11, high speed valve 12, O-ring 13, oil extraction check valve 14, O-ring 15, oil-discharging cavity 16, back casing are matched in oil suction
17, screw 18, backhaul pressing plate 19, rear end cap 20, O-ring 21, circlip 22, gasket 23, circlip 24, screw 25, rear bearing 26, axis
Set 27, oil discharge outlet 28, plunger 29, roller 30, idler wheel 31, inner curve rotor 32, gasket 33, circlip 34, inlet port 35 wait acceleration
Equal decelerations inner curve guide rail 36, waits the decelerations inner curve backhaul guide rails 37 such as acceleration.
Axle envelope 1 is mounted between transmission shaft 2 and drive end bearing bracket 4, and transmission shaft 2, by prime mover driven, is passed through simultaneously by spline
Spline is connect with inner curve rotor 32, and drive end bearing bracket 4 is fixedly mounted on procapsid 6 by screw, while in drive end bearing bracket 4 and front housing
O-ring 3 is installed between body 6.Procapsid 6 is mounted on transmission shaft 2 by the support of fore bearing 5, and passes through screw 18 and back casing 17
Be fixedly connected, 5 inner ring of fore bearing is mounted on transmission shaft 2, by the shoulder of the shaft shoulder, procapsid 6 on transmission shaft 2, drive end bearing bracket 4 with
And 34 axial limiting of gasket 33 and circlip, back casing 17 are linked together by screw 18 with procapsid 6, and by rear bearing 26
Support is on transmission shaft 2, and 26 inner ring of rear bearing is mounted on transmission shaft 2, by the shoulder of back casing 17, rear end cap 20 and transmission shaft
22 axial limiting of gasket 23 and circlip on 2, rear end cap 20 are fixedly connected on back casing 17 by screw 25, while in rear end
O-ring 21 is installed between lid 20 and back casing 17.
Inner curve rotor 32 is mounted on transmission shaft 2 by spline connection, is provided with etc. on inner curve rotor 32 and to be accelerated etc. to subtract
Fast inner curve guide rail 36, roller 30 are mounted on the circular hole of 29 bottom of plunger by axis hole clearance fit, and idler wheel 31 is fixedly mounted
On roller 30, roller 30 and idler wheel 31 the decelerations inner curve guide rail 36 such as accelerate to support by equal on inner curve rotor 32, and
Oscillation cycle rolls on inner curve guide rail 36, and 29 bottom end of plunger is supported by roller 30 and idler wheel 31, and 29 head of plunger passes through axis
Interporal lacuna is fitted in the plunger hole opened up in procapsid 6, and with the rotation of transmission shaft 2,29 head of plunger is in plunger hole
In be continually performed reciprocating motion, backhaul pressing plate 19 is supported by transmission shaft 2, and is connected by the way that screw and inner curve rotor 32 are fixed
It connects, axial to be limited by axle sleeve 27 and circlip 24, oil sucting one-way valve 9 is embedded in the column for being mounted on and being formed by plunger 29 and plunger hole
In the suction passage that plug chamber 38 is connected, oil extraction check valve 14 is embedded in the oil drain passage for being mounted on and being connected with plunger cavity 38
In, high speed valve 12 is mounted in the outside duct being connected with plunger cavity 38.
The forward direction when 38 volume of plunger cavity increases of oil sucting one-way valve 9 is opened, and low pressure oil flows into plunger cavity 38 by oil sucting cavity 8,
Oil sucting cavity 8 is made of oil suction with the oil suction duct of the annular groove cavity in fluid 11 and 9 tail portion of oil sucting one-way valve in procapsid 6,
Oil suction is fixedly connected by screw with procapsid 6 with fluid 11, and oil suction is with the annular groove oil suction cavity two opened up in fluid 11
Side is equipped with O-ring 7 and O-ring 10, and oil extraction check valve 14 is increased to when 38 volume of plunger cavity reduces the hydraulic oil pressure that is squeezed
Forward direction is opened when cracking pressure, and high pressure oil is expelled in oil-discharging cavity 16 from plunger cavity 38 through the pressure of oil extraction check valve 14, oil-discharging cavity 16
It is made of the oil extraction duct of 14 tail portion of annular oil extraction cavity and oil extraction check valve opened up in back casing 17, holds in annular groove oil extraction
Chamber two sides are equipped with O-ring 13 and O-ring 15, oil sucting cavity 8 and oil-discharging cavity 16 respectively with 28 phase of the inlet port of pump 35 and oil discharge outlet
It links up, high speed valve 12 is mounted in the duct being connected on procapsid 6 with plunger cavity 38, opens up in procapsid 6
There is the duct of the valve port and oil sucting cavity 8 of linking up high speed valve 12, outer rim is equipped with O-ring in duct, and high-speed figure is opened
It closes 12 valve port one end of valve to be connected with plunger cavity 38, the valve port other end is connected with oil sucting cavity 8, passes through active control high-speed figure
The on-off of 12 valve port of switch valve opened and closed to realize oil sucting cavity 8 Yu plunger cavity 38, may be implemented to pump based on certain control strategy
Change displacement control adjust.
Oil sucting one-way valve 9, oil extraction check valve 14 have with 12 number of high speed valve it is multiple, it is opposite with 29 numbers of plunger
Answer, plunger 29 is radially radial to be evenly arranged in procapsid 6, shown in Fig. 1 in illustrate only an inner curve rotor 32, plunger 29
It is all supported by the inner curve guide rail 36 on this inner curve rotor 32 and is driven, and the inner curve on backhaul pressing plate 19 simultaneously
Under backhaul guide rail 37 acts on, so that the every rotation of inner curve rotor 32 is gone around, same plunger 29 can realize that the multiple suction oil of completion is past
Multiple movement, same structural principle is adapted to multiple inner curve rotors 32, if multiple inner curve rotors 32 pass through spline
Connection is sequentially arranged on same transmission shaft 2, then plunger 29, oil sucting one-way valve 9, oil extraction check valve 14 and high speed valve
12 etc. can be transplanted similar to structural principle duplication on other inner curve rotors 32 with this, constitute multiple rows of multiple-action inner curved rotor
Drive digital variable radial-plunger pump.
The course of work of the invention is as follows:
By wind-force or other prime mover drivens, under forward and backward 5 and 26 supporting role of bearing, transmission shaft 2 rotates movement,
Since inner curve rotor 32 and transmission shaft 2 are linked together by spline, inner curve rotor 32 will be with transmission shaft 2 together
Movement is rotated, is provided with etc. in the outer rim side of interior curred rotor 32 and the decelerations inner curve guide rail 36 such as accelerates, accelerated due to equal
The rotary motion effect of equal decelerations inner curve guide rail 36, drives the roller 30 being installed together with plunger and idler wheel 31 waiting acceleration
Rolled on equal decelerations inner curve guide rail 36 so that plunger 29 executed in the plunger hole of procapsid 6 it is periodic past
Multiple movement is waiting the forced of the decelerations inner curve guide rails 36 such as acceleration that lower plunger 29 is driven to execute preshoot impulse stroke, at this time plunger
The reduction of 38 volume of chamber, in the case where the decelerations inner curve backhaul guide rails such as the equal acceleration that 19 inner edge of backhaul pressing plate opens up force backhaul effect,
The plunger 29 for completing preshoot impulse stroke executes drawback movement immediately, and 38 volume of plunger cavity increases at this time.
When 38 volume of plunger cavity increases, local decompression is formed inside plunger cavity 38, and 9 valve port of oil sucting one-way valve is outside at this time
It is opened under differential pressure action between 38 internal negative pressure of portion's atmospheric pressure and plunger cavity, inlet port 35 of the low pressure oil through pumping and oil sucting cavity 8,
Be sucked into plunger cavity 38 by oil sucting one-way valve 9, when 38 volume of plunger cavity reduces, hydraulic oil inside plunger cavity 38 by
To squeezing action pressure rise, to close the valve port of oil sucting one-way valve 9, the hydraulic fluid pressure inside plunger cavity 38 is increased to
When more than or equal to the sum of the load pressure of pump discharge and 14 valve port cracking pressure of oil extraction check valve, the valve port quilt of oil extraction check valve 14
It opens, the oil-discharging cavity 16 from plunger cavity 38 through pumping and 28 pressure of oil discharge outlet are delivered in load circuit high pressure oil therewith.Inner curve
The every rotation of rotor 32 is gone around, and plunger 29 can complete multiple reciprocating motion, multiple suction oil is realized, with inner curve rotor
32 under the continuous driving turning effort of transmission shaft 2, and radially multiple plungers 29 of the radial installation in procapsid 6 will be continuous
Execution move back and forth carry out suction oil, thus realize the sucking low pressure oil of pump, discharge high pressure oil function.
When the power-off of high speed valve 12 does not work, the suction oil function of pump is by oil sucting one-way valve 9 and oil extraction list
It is completed to valve 14, pump is used as constant displacement pump and uses at this time, and work is in maximum pump discharge operating condition, when pump, which needs to become discharge capacity, to be adjusted, in column
Before plug 38 volume of chamber reduction starts, by being powered to the corresponding high speed valve 12 of plunger cavity 38, high speed number is driven
The valve port of word switch valve 12 is opened, and is reduced in 29 preshoot stroke of plunger in 38 volume of plunger cavity, and the hydraulic oil in plunger cavity 38 will
It is returned in the oil sucting cavity 8 of pump by the valve port of open high speed valve 12, externally shows as the plunger cavity 38 pressure
The discharge capacity of row's high pressure oil disabler, the high pressure oil flow reduction that the oil discharge outlet 28 of pump exports, namely pump is adjusted to smaller etc.
Grade, by certain control strategy, control changes the energization power-off of the corresponding each high speed valve 12 of each plunger cavity 38
State and power on/off order are, it can be achieved that the discharge capacity of pump is adjusted from maximum pump discharge to the smooth change of zero delivery approximately linear.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Range should not be construed as being limited to the specific forms stated in the embodiments, and protection scope of the present invention also forgives art technology
Personnel conceive according to the present invention it is conceivable that equivalent technologies mean.
Claims (6)
1. a kind of multiple rows of multiple-action inner curved rotor drives digital variable radial-plunger pump, it is characterised in that: including shell, shell
Central rotational is equipped with the transmission shaft by prime mover control rotation, is formed with annular chamber between the shell and transmission shaft；Institute
It states to be equipped in annular chamber and is connected and fixed the inner curve rotor being sleeved on transmission shaft by spline, be in equipped with several in the shell
The plunger hole that radial radial is intervally arranged, it is recessed that the annular outer wall of inner curve rotor is equipped with annular corresponding with plunger hole site
Slot, annular groove bottom are communicated with the rail cavity of annular, and rail cavity bottom surface is to wait the decelerations inner curve guide rails such as acceleration, rail cavity top
The decelerations inner curve backhaul guide rails such as the acceleration such as face is；
It is mounted on plunger in each plunger hole, plunger base, which both passes through, to be inserted into after annular groove in rail cavity and plunger is inserted
Enter end and be equipped with transverse holes, be rotatably equipped with roller in transverse holes, roller both ends distinguish fixing sleeve and idler wheel are housed, inner curve rotor with
When transmission shaft rotation, each idler wheel does oscillation cycle along decelerations inner curve guide rails such as equal acceleration in rail cavity and rolls,
Meanwhile plunger head back and forth moves up and down in corresponding plunger hole respectively；
The oil sucting cavity of annular is equipped in the shell positioned at the side of plunger hole, the row of annular is equipped with positioned at the other side of plunger hole
Oil pocket, shell are equipped with the inlet port being connected to oil sucting cavity and the oil discharge outlet being connected to oil-discharging cavity；The oil sucting cavity and each
It has been respectively communicated with suction passage between plunger hole, has been respectively communicated with oil drain passage between oil-discharging cavity and each plunger hole；Each suction
It is mounted on oil sucting one-way valve in oily channel, oil extraction check valve is mounted in each oil drain passage；Corresponding suction passage,
Crisscrossing channels are formed between oil drain passage and plunger hole, the top portion of each crisscrossing channels is mounted on high-speed figure and opens
Close valve；It is opened by corresponding oil sucting one-way valve, oil extraction check valve, plunger and high-speed figure at the intermediate position of each crisscrossing channels
It closes valve and surrounds closed plunger cavity；Each high speed valve valve port one end is connected to corresponding plunger cavity, and the other end is equal
It is connected to corresponding oil sucting cavity.
2. the multiple rows of multiple-action inner curved rotor of one kind according to claim 1 drives digital variable radial-plunger pump, special
Sign is: the shell include be rotatably installed in respectively transmission shaft go forward, back casing, forward and backward shell pairing is fixedly connected as
One；It is fixedly connected with the drive end bearing bracket being sleeved on transmission shaft on the outside of procapsid, is fixedly connected on the outside of back casing and is sleeved on biography
Rear end cap on moving axis；Axle envelope is installed between drive end bearing bracket and transmission shaft.
3. the multiple rows of multiple-action inner curved rotor of one kind according to claim 2 drives digital variable radial-plunger pump, special
Sign is: inner curve rotor is rotatably installed on transmission shaft by spline, and the outer side edges of inner curve rotor annular outer wall are along position
Equipped with open ring-shaped step one, inner curve rotor lateral surface is fixed with the backhaul pressing plate for the annular being sleeved on transmission shaft, returns
The position that ring-shaped step slot is corresponded on journey pressing plate is equipped with ring-shaped step two, the ring-shaped step one of ring-shaped step two and inner curve rotor
Between be combined to form annular groove；Annular groove two sides of the bottom are respectively equipped with the rail cavity that ring-shaped step three forms annular, wait and add
The decelerations such as speed inner curve guide rail is located on inner curve rotor, and the decelerations inner curve backhaul guide rails such as acceleration is waited to be located on backhaul pressing plate.
4. the multiple rows of multiple-action inner curved rotor of one kind according to claim 2 drives digital variable radial-plunger pump, special
Sign is: oil suction is fixed on the outside of outer housing with fluid, oil suction is equipped with annular groove cavity with fluid, annular groove cavity and outer
Oil sucting cavity is formed between shell.
5. the multiple rows of multiple-action inner curved rotor of one kind according to claim 4 drives digital variable radial-plunger pump, special
Sign is: between drive end bearing bracket and procapsid, being located between rear end cap and back casing and between oil suction stream ligand and procapsid and inhales
The two sides up and down up and down between two sides, front housing and the rear housing positioned at oil-discharging cavity of oil pocket are mounted on O-ring.
6. the multiple rows of multiple-action inner curved rotor of one kind according to claim 1 drives digital variable radial-plunger pump, special
Sign is: the inner curve section of inner curve backhaul guide rail is to wait the decelerations inner curves such as acceleration, cosine acceleration motion rule introversion
In line, sinusoidal acceleration characteristics of motion inner curve, trapezoidal acceleration characteristics of motion inner curve or parabola acceleration movement rule
Curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106463.0A CN109236595B (en) | 2018-09-21 | 2018-09-21 | Multi-row multi-action inner curve rotor driving digital variable radial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106463.0A CN109236595B (en) | 2018-09-21 | 2018-09-21 | Multi-row multi-action inner curve rotor driving digital variable radial plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109236595A true CN109236595A (en) | 2019-01-18 |
| CN109236595B CN109236595B (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811106463.0A Active CN109236595B (en) | 2018-09-21 | 2018-09-21 | Multi-row multi-action inner curve rotor driving digital variable radial plunger pump |
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| CN110848126A (en) * | 2019-11-28 | 2020-02-28 | 兰州理工大学 | Plunger type digital pump |
| CN113339222A (en) * | 2021-07-20 | 2021-09-03 | 安徽理工大学 | Double-row axial plunger pump based on digital variable |
| CN114198277A (en) * | 2021-12-14 | 2022-03-18 | 浙江工业大学 | Gear drive reciprocating piston pump |
| CN114962200A (en) * | 2022-05-11 | 2022-08-30 | 哈尔滨工业大学（深圳） | Multiple frequency cam digital pump |
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| CN114198277A (en) * | 2021-12-14 | 2022-03-18 | 浙江工业大学 | Gear drive reciprocating piston pump |
| CN114962200A (en) * | 2022-05-11 | 2022-08-30 | 哈尔滨工业大学（深圳） | Multiple frequency cam digital pump |
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