CN108167151A - A kind of symmetrical shaft type quantifies axial plunger pump and its control method - Google Patents
A kind of symmetrical shaft type quantifies axial plunger pump and its control method Download PDFInfo
- Publication number
- CN108167151A CN108167151A CN201810185238.4A CN201810185238A CN108167151A CN 108167151 A CN108167151 A CN 108167151A CN 201810185238 A CN201810185238 A CN 201810185238A CN 108167151 A CN108167151 A CN 108167151A
- Authority
- CN
- China
- Prior art keywords
- plunger
- pressure oil
- shell
- oil
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/22—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
- F04B1/24—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons inclined to the main shaft axis
-
- 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
- F04B53/02—Packing the free space between cylinders and pistons
-
- 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
-
- 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
- F04B53/162—Adaptations of cylinders
-
- 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
- F04B53/18—Lubricating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
A kind of symmetrical shaft type quantifies axial plunger pump and its control method, belongs to hydraulic pump unit technical field, is made of transmission shaft, bearing, axial positioning sleeve, housing unit, middle casing, drive ball pair, part of cylinder block, plunger bearing, plunger and valve plate；Plunger pump structure is novel, control method clear principle, the number of plunger is increased in the case where not increasing volume, simplify pump body structure, plunger quantity is more and is arranged symmetrically relative to plunger bearing, form self-lubricating and self sealing structure, pump housing pulsation is small, effectively reduces noise, compared with traditional swash plate pump, inclined shaft pump, its quality is lighter, and the cost of production is lower, and key is that it efficiently solves the technological deficiencies such as pressure fluctuation, axial force, output is more steady, further reduced production cost.
Description
Technical field
The invention belongs to hydraulic pump unit technical fields, are related to a kind of plunger pump and its control method, more particularly to one
The symmetrical shaft type of kind quantifies axial plunger pump and its control method.
Background technology
One complete machine is mainly made of prime mover, transmission mechanism and working machine three parts.Transmission mechanism usually divides
For machine driving, Electrified Transmission and Fluid-transmission；Fluid-transmission is to carry out energy conversion, transmission and control by working media of fluid
The transmission of system is driven including liquid transmission and gas.And realize Fluid-transmission hydraulic pump have gear pump, screw pump, vane pump,
The types such as piston pump.
Plunger pump is a kind of positive displacement pump, and by reciprocating motion of the plunger in cylinder body, confined space is big in change cylinder body
Small sucking and discharge so as to fulfill liquid.It is easy to process and ensure higher to match since its main motion parts is cylinder
Precision is closed, thus can guarantee still there is higher volumetric efficiency under relatively high operating pressure.Radial plunger pump and axial plunger pump
It is type most commonly seen in plunger pump, axial plunger pump is the important equipment in hydraulic system, with effective and convenient variable etc.
Advantage is widely used in the fields such as industrial equipment, engineering machinery, traveling vehicle.Wherein, axial plunger pump can be divided into inclined disc type again
Axial plunger pump and angle type axial piston pump.When cylinder body axis and drive shaft axis overlap, referred to as cam-type axial piston
Pump；When cylinder body axis and drive shaft axis form angle, referred to as angle type axial piston pump.
The advantages of axial plunger pump, is parameter is high, efficient, long lifespan, variable are convenient and form is more, unit power weight
Amount is light, the equal compression chord of plunger pump major part and strength of materials performance can be fully utilized.The shortcomings that axial plunger pump is
Structure is more complicated, and number of components is more, poor from absorption and pressure oscillation is big, and manufacturing process is more demanding, cost is more expensive, noise
Greatly.
Invention content
The purpose of the present invention is be directed to excessively high existing axial plunger pump noise level, flow and pressure oscillation is larger and axis
To power it is larger the defects of and production cost it is high the deficiencies of, propose that a kind of symmetrical shaft type quantifies axial plunger pump and its controlling party
Method increases the number of plunger in the case where not increasing volume, employs self sealing structure, simplifies pump body structure, reduces
Axial force, makes output more steady, can effectively solve the technological deficiencies such as pressure fluctuation, can effectively reduce noise, further drops
Low production cost.
The technical scheme is that：A kind of symmetrical shaft type quantifies axial plunger pump, it is characterised in that：The quantitative axis
To plunger pump by transmission shaft, bearing, axial positioning sleeve, housing unit, middle casing, drive ball pair, part of cylinder block, plunger branch
Seat, plunger and valve plate are formed；The plunger bearing connection is arranged on the middle part of transmission shaft, the circumferencial direction of the plunger bearing
Equipped with several cylindrical holes, left ball hinged support and right ball hinged support, the plunger are uniformly staggeredly equipped in the cylindrical hole
The left end of bearing is equipped with Left Drive ball pair, and the right end of the plunger bearing is equipped with right drive ball pair, the secondary outside of the Left Drive ball
Equipped with left cylinder body component, the secondary outside of right drive ball is equipped with right cylinder body component；The left cylinder body component and right cylinder body component are equal
It is made of cylinder sleeve, cylinder body, axially position ring and ball countershaft to locating piece, the ball countershaft is arranged on to locating piece in cylinder body
Portion, the axially position ring are fastened on ball countershaft on the right side of cylinder body after locating piece progress axially position by sunk screw
On end face, the left side circumferencial direction of the cylinder body is equipped with several mounting hole of cylinder sleeve, and the cylinder sleeve is arranged on the cylinder sleeve
In mounting hole, left plunger is equipped between the cylinder sleeve and left ball hinged support in the left cylinder body component, in the right cylinder body component
Right plunger is equipped between cylinder sleeve and right ball hinged support, the secondary left side of the Left Drive ball is equipped with left axial positioning sleeve, the right transmission
The secondary right side of ball is equipped with right axial positioning sleeve, and left bearing, the right axial positioning sleeve right end are equipped on the left of the left axial positioning sleeve
Equipped with right bearing, left shell component is arranged on the left bearing, right shell body component, the left housing are arranged on the right bearing
Tilted structure of the inner face of body component and right shell body component with swash plate, one end is equipped on the swash plate of the left shell component
Left end shell pressure oil window, the other end are equipped with left end shell oil sucking window；One end is equipped with right end shell on the swash plate of the right shell body component
Pressure oil window, the other end are equipped with right end shell oil sucking window, and left end shell suction pressure oil window forms phase with right end shell suction pressure oil window
Angle；Left valve plate is equipped between the left shell component and left cylinder body component, between the right shell body component and right cylinder body component
Equipped with right valve plate, the left valve plate, right valve plate by elastic cylindrical pin respectively on left shell component, right shell body component
Oblique disk structure be connected, the middle casing be bolted by connection be fixed on left shell component and right shell body component it
Between, the outside of the middle casing is equipped with oil inlet and oil outlet, and the middle casing is internally provided with intermediate oil suction slot and centre
Pressure oil groove, the oil inlet are connected with intermediate oil suction slot, and the oil outlet is connected with intermediate pressure oil groove, the intermediate oil suction
The left end of slot is connected with the left end shell oil sucking window, the right end of the intermediate oil suction slot and the right end shell oil sucking window phase
Connection, the left end of the intermediate pressure oil groove are connected with the left end shell pressure oil window, the right end of the intermediate pressure oil groove and institute
Right end shell pressure oil window is stated to be connected.
The middle part of the transmission shaft is equipped with spline, the secondary and right drive ball of plunger bearing, Left Drive ball of matched connection
Sub-center is equipped with splined hole.
The left plunger is identical with the structure of right plunger, and one end of left and right plunger is spherical structure, and the other end is hemispherical
Structure, spherical structure and hemispherical dome structure are internally provided with interconnected elongated hole, and spherical structure is cut with scissors with left and right ball hinged support
It connects in succession and energy self-lubricating, hemispherical dome structure is slidably and sealingly connected with cylinder sleeve formation.
The left-external side of the left bearing is equipped with washer and sealing ring.
The left cylinder body component and secondary and right drive ball pair of right cylinder body component, Left Drive ball, left plunger and right plunger, left ball
Hinged-support and right ball hinged support are axisymmetricly set centered on plunger bearing.
The left end shell suction pressure oil window forms phase angle with right end shell suction pressure oil window, and the value range at phase angle is 3
~15 °.
The left plunger is identical with the number of right plunger, is 7~12.
The left valve plate is identical with the angle of inclination of right valve plate, and angle of inclination is 3~9 °.
A kind of symmetrical shaft type quantifies the control method of axial plunger pump, which is characterized in that includes the following steps：
(1) the mechanism kinematic process of axial plunger pump；
(1-1) provides power when extraneous power to transmission shaft, and transmission shaft forms rotary motion, and transmission shaft transfers torque to left biography
Dynamic ball is secondary, right drive ball is secondary and plunger bearing；
(1-2) Left Drive ball is secondary, right drive ball is secondary, plunger bearing drives left cylinder body component respectively and right cylinder body component makees rotation fortune
Dynamic and small sway, left and right plunger constant velocity rotary motion；
It relatively moves and swings simultaneously between (1-3) cylinder sleeve and left and right plunger and complete oil suction and pressure oil action；
(2) the suction pressure oil process of axial plunger pump；
From plunger X in (2-1) right shell body component1To plunger X6Form oil suction, the cavity volume that each plunger and cylinder sleeve are formed by it is small by
Gradual change is big, and oil-absorbing process is completed in oil sucking window；
From plunger P in (2-2) right shell body component1To plunger P6Form pressure oil, the cavity volume that each plunger and cylinder sleeve are formed by greatly by
Gradual change is small, and pressure oil process is completed in pressure oil window；
(2-3) intermediate oil suction slot and intermediate pressure oil groove, left end and left end shell of intermediate oil suction slot since middle casing is internally provided with
Oil sucking window is connected, and the right end of intermediate oil suction slot is connected with right end shell oil sucking window, the left end and left end of intermediate pressure oil groove
Shell pressure oil window is connected, and the right end of intermediate pressure oil groove is connected with right end shell pressure oil window (27), passes through intermediate suction pressure oil groove
The oil circuit of connection realizes suction pressure oil process；
The suction pressure oil process of (2-4) left shell component and the suction pressure oil process of right shell body form advanced or hysteresis motion phase
Angle；
(3) lubrication and seal process of axial plunger pump；
During pressure oil, pressure is changed from small to big, force plunger cavity oil pressure effect under radially occur it is micro swell, column
Spherical surface forms the line slided with inboard wall of cylinder liner and contacts, and realize sealing beyond the Great Wall；Meanwhile column is realized by the elongated hole in the middle part of plunger
The self-lubricating of plug and ball hinged support.
Beneficial effects of the present invention are：A kind of symmetrical shaft type provided by the invention quantifies axial plunger pump and its controlling party
Method, plunger pump structure is novel, control method clear principle, and the number of plunger is increased in the case where not increasing volume, simplifies
Pump body structure, plunger quantity is more and is arranged symmetrically relative to plunger bearing, forms self-lubricating and self sealing structure, the pump housing
Pulse it is small, effectively reduce noise, axial force, with traditional swash plate pump, inclined shaft pump compared with, quality is lighter, the cost of production
Lower, key is that it efficiently solves the technological deficiencies such as pressure fluctuation, and output is more steady, further reduced and is produced into
This.
Description of the drawings
Fig. 1 is the whole complete section structure diagram of the present invention.
Fig. 2 is middle casing component complete section structure diagram of the present invention.
Fig. 3 is that the middle casing in A-A directions in Fig. 2 removes section structure diagram.
Fig. 4 is the left shell component section structure diagram in B-B directions in Fig. 2.
Fig. 5 is the right shell body component section structure diagram in C-C directions in Fig. 2.
Fig. 6 is the intermediate hull construction schematic diagram that D-D directions are rotated by 90 ° after cuing open in Fig. 3.
Fig. 7 is E-E directions complete section structure diagram in Fig. 5.
Plunger bearing is together with plunger and the complete section structure diagram of ball hinged support in Fig. 8 present invention.
Fig. 9 is the complete section structure diagram in F-F directions in Fig. 8.
Figure 10 is the assembling structure schematic diagram of ball hinged support and plunger bearing in the present invention.
Figure 11 is the structure diagram of part of cylinder block in the present invention.
Figure 12 is the sequence of movement schematic diagram of plunger in the present invention.
In figure：Transmission shaft 1, sealing ring 2, washer 3, left bearing 4, left valve plate 5, Left Drive ball pair 6, left cylinder body component 7,
Middle casing 8, plunger bearing 9, right cylinder body component 10, right drive ball pair 11, right valve plate 12, right bearing 13, right axially position
Set 14, right shell body component 15, connection bolt 16, right plunger 17, left plunger 18, left shell component 19, left axial positioning sleeve 20, into
Hydraulic fluid port 21, oil outlet 22, intermediate oil suction slot 23, intermediate pressure oil groove 24, left end shell pressure oil window 25, left end shell oil sucking window 26,
Right end shell pressure oil window 27, right end shell oil sucking window 28, swash plate 29, elastic cylindrical pin 30, left ball hinged support 31, right ball hinged support
32nd, splined hole 33, cylindrical hole 34, cylinder sleeve 35, cylinder body 36, sunk screw 37, axially position ring 38, ball countershaft are to locating piece
39th, mounting hole of cylinder sleeve 40, elongated hole 41.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Fig. 1~Figure 11, a kind of symmetrical shaft type quantifies axial plunger pump, by transmission shaft 1, bearing, axial positioning sleeve, shell
Body component, middle casing 8, drive ball pair, part of cylinder block, plunger bearing 9, plunger and valve plate are formed；The connection of plunger bearing 9 is set
It puts at the middle part of transmission shaft 1, the circumferencial direction of plunger bearing 9 is equipped with several cylindrical holes 34, is uniformly handed in cylindrical hole 34
Mistake is equipped with left ball hinged support 31 and right ball hinged support 32, and the left end of plunger bearing 9 is equipped with Left Drive ball pair 6, the right side of plunger bearing 9
End is equipped with right drive ball pair 11, and 6 outside of Left Drive ball pair is equipped with left cylinder body component 7, and right 11 outside of drive ball pair is equipped with right cylinder body
Component 10；Left cylinder body component 7 and right cylinder body component 10 are by cylinder sleeve 35, cylinder body 36, axially position ring 38 and ball pair axially position
Part 39 is formed, and ball countershaft is arranged on the inside of cylinder body 36 to locating piece 39, axially position ring 38 to ball countershaft to locating piece 39 into
It is fastened on the right side of cylinder body 36 by sunk screw 37 after row axially position, on the left side circumferencial direction of cylinder body 36
Equipped with several mounting hole of cylinder sleeve 40, cylinder sleeve 35 is arranged in mounting hole of cylinder sleeve 40, the cylinder sleeve 35 in left cylinder body component 7 and left ball
Left plunger 18 is equipped between hinged-support 31, right plunger is equipped between the cylinder sleeve 35 and right ball hinged support 32 in right cylinder body component 10
17,6 left side of Left Drive ball pair is equipped with left axial positioning sleeve 20, and right 11 right side of drive ball pair is equipped with right axial positioning sleeve 14, left axle
Left bearing 4 is equipped with to 20 left side of positioning sleeve, right 14 right end of axial positioning sleeve is equipped with right bearing 13, left housing is arranged on left bearing 4
Body component 19 is arranged with right shell body component 15, the equal band of inner face of left shell component 19 and right shell body component 15 on right bearing 13
The tilted structure of swash plate 29, one end is equipped with left end shell pressure oil window 25 on the swash plate 29 of left shell component 19, and the other end is equipped with
Left end shell oil sucking window 26；One end is equipped with right end shell pressure oil window 27 on the swash plate 29 of right shell body component 15, and the other end is equipped with the right side
End housing oil sucking window 28, left end shell suction pressure oil window form phase angle with right end shell suction pressure oil window；Left shell component 19 and a left side
Left valve plate 5 is equipped between part of cylinder block 7, right valve plate 12 is equipped between right shell body component 15 and right cylinder body component 10, a left side is matched
Flow table 5, right valve plate 12 by elastic cylindrical pin 30 respectively with the oblique disk structure phase on left shell component 19, right shell body component 15
Connection, middle casing 8 are fastened on by connecting bolt 16 between left shell component 19 and right shell body component 15, middle casing
8 outside is equipped with oil inlet 21 and oil outlet 22, and middle casing 8 is internally provided with intermediate oil suction slot 23 and intermediate pressure oil groove 24, into
Hydraulic fluid port 21 is connected with intermediate oil suction slot 23, and oil outlet 22 is connected with intermediate pressure oil groove 24, the left end of intermediate oil suction slot 23 and
Left end shell oil sucking window 26 is connected, and the right end of intermediate oil suction slot 23 is connected with right end shell oil sucking window 28, intermediate pressure oil groove
24 left end is connected with left end shell pressure oil window 25, and the right end of intermediate pressure oil groove 24 is connected with right end shell pressure oil window 27.
As shown in Figure 1, a kind of symmetrical shaft type quantifies axial plunger pump, the middle part of transmission shaft 1 is equipped with spline, matched
Plunger bearing 9, Left Drive ball pair 6 and secondary 11 centers of right drive ball of connection are equipped with splined hole 33.Left and right part of cylinder block 7, column
Plug bearing 9 and left and right drive ball pair 8 do constant angular velocity rotation by the drive of transmission shaft 1, ensure the circle of left and right plunger and cylinder sleeve 35
All constant angular velocity rotations；Ball countershaft causes part of cylinder block to swing with drive ball pair along the generation of ball secondary surface to locating piece 39,
And the internal spline for passing through part of cylinder block is meshed with the external splines of drive ball pair, realizes the transmission of circumference power.Transmission shaft, left and right
The spline number of part of cylinder block, plunger and left and right drive ball pair depends on being installed on the number of double hinge post plug assemblies on plunger part
Amount；Simultaneously the phase angle between double hinge post plug assemblies of plunger bearing or so also with transmission shaft and left and right cylinder body portion
The spline number of part, plunger part and left and right drive ball pair is related.Such as double hinge post plug assembly numbers when plunger bearing or so
When amount is respectively 12, such as there are phase difference, such as 15 ° of difference, then spline number is 12 teeth.
As shown in figure 8, a kind of symmetrical shaft type quantifies axial plunger pump, left plunger 18 is identical with the structure of right plunger 17,
One end of left and right plunger is spherical structure, and the other end is hemispherical dome structure, and spherical structure is internally provided with phase with hemispherical dome structure
Intercommunicated elongated hole 41, spherical structure are articulated and connected with left and right ball hinged support, and hemispherical dome structure is slidingly sealed with cylinder sleeve formation
Connection.When being filled with highly pressurised liquid, left and right plunger is forced（Hemispherical dome structure one end）It is radially sent out under oil pressure effect inner cavity
Raw micro swell, plunger spherical outside surface form the line contact sealing slided with inboard wall of cylinder liner.
As shown in Figure 1, a kind of symmetrical shaft type quantifies axial plunger pump, the left-external side of left bearing is equipped with washer 3 and sealing
Circle 2；Left cylinder body component 7 and right cylinder body component 10, Left Drive ball pair 6 and right drive ball pair 11, left plunger 18 and right plunger 17, a left side
Ball hinged support 31 and right ball hinged support 32 are axisymmetricly set centered on plunger bearing 9.Cylinder sleeve passes through interference fit and cylinder
Body connects firmly, and realizes the movement of part of cylinder block to locating piece and the cooperation of drive ball pair by ball countershaft, completes double hinges within the scope of one week
The relative motion of plunger and cylinder sleeve and being pumped into, pumping out for liquid；Left and right part of cylinder block forms Port Plate Pair and oil with left and right valve plate
Road.
As shown in Figure 1, a kind of symmetrical shaft type quantifies axial plunger pump, left end shell suction pressure oil window and right end shell suction pressure oil
Window forms phase angle, and the value range at phase angle is 3~15 °.
As shown in figure 8, a kind of symmetrical shaft type quantifies axial plunger pump, left plunger 18 is identical with the number of right plunger 17,
It is 7~12；Left valve plate 5 is identical with the angle of inclination of right valve plate 12, and angle of inclination is 3~9 °.
As shown in Figure 1, a kind of symmetrical shaft type quantifies the control method of axial plunger pump, include the following steps：
(1) the mechanism kinematic process of axial plunger pump；
(1-1) provides power when extraneous power to transmission shaft 1, and transmission shaft 1 forms rotary motion, and transmission shaft 1 transfers torque to
Left Drive ball pair 6, right drive ball pair 11 and plunger bearing 9；
(1-2) Left Drive ball pair 6, right drive ball pair 11, plunger bearing 9 drive left cylinder body component 7 and right cylinder body component 10 respectively
It rotates and small sway；Plunger constant angular velocity rotates realizing route with cylinder sleeve constant angular velocity：Transmission shaft and plunger bearing, transmission
Ball pair is connected by spline, while plunger bearing, drive ball pair and its constant angular velocity is driven to rotate；And drive ball pair and cylinder body portion
Part is also to be connected by spline, they are also what constant angular velocity rotated.Therefore, when transmission shaft 1 rotates, it is fixed on plunger branch
Plunger constant angular velocity on seat is rotated with part of cylinder block constant angular velocity.
The axial wobble realizing route of (1-3) part of cylinder block：No matter angle is fixed or changed to valve plate, part of cylinder block
End face always coordinates with valve plate, and existing relative rotary motion between them plays sealing function again, realize liquid be pumped into,
The needs that the needs or flow pumped out change.Drive ball pair is matched with ball countershaft to locating piece, and ball countershaft passes through to locating piece
Axially position ring is connected firmly on cylinder body.When transmission shaft drives drive ball pair to generate relative rotary motion with valve plate, valve plate
Ball countershaft is pushed to locating piece and then part of cylinder block is driven to generate relative swing, realizes the relative motion of plunger and cylinder sleeve, then is led to
Oil sucking window, pressure oil window and the related oil circuit on valve plate are crossed, realizes being pumped into and pumping out for liquid.Cylinder sleeve and left and right plunger
Between relatively move and swing simultaneously and complete oil suction and pressure oil and act；
(2) the suction pressure oil process of axial plunger pump (by taking the right shell body component in Fig. 4, the white plunger in Figure 12 as an example)；
From plunger X in (2-1) right shell body component 151To plunger X6Form oil suction, the cavity volume that each plunger and cylinder sleeve 35 are formed by
It is small to become larger, oil-absorbing process is completed in oil sucking window；
From plunger P in (2-2) right shell body component 151To plunger P6Form pressure oil, the cavity volume that each plunger and cylinder sleeve 35 are formed by
It tapers into greatly, pressure oil process is completed in pressure oil window；
(2-3) intermediate oil suction slot 23 and intermediate pressure oil groove 24 since middle casing 8 is internally provided with, the left end of intermediate oil suction slot 23 with
Left end shell oil sucking window 26 is connected, and the right end of intermediate oil suction slot 23 is connected with right end shell oil sucking window 28, intermediate pressure oil groove
24 left end is connected with left end shell pressure oil window 25, and the right end of intermediate pressure oil groove 24 is connected with right end shell pressure oil window 27,
Suction pressure oil process is realized by the oil circuit that intermediate suction pressure oil groove connects；
The suction pressure oil process of (2-4) left shell component and the suction pressure oil process of right shell body form advanced or hysteresis motion phase
Angle；
(3) lubrication and seal process of axial plunger pump；
During pressure oil, pressure is changed from small to big, force plunger cavity oil pressure effect under radially occur it is micro swell, column
Spherical surface forms the line slided with inboard wall of cylinder liner and contacts, and realize sealing beyond the Great Wall；Meanwhile column is realized by the elongated hole in the middle part of plunger
The self-lubricating of plug and ball hinged support.
Embodiment 1
A kind of symmetrical shaft type quantifies axial plunger pump, and every discharge capacity that turns is 120ml, and plunger quantity is 24, the inclination of oil distribution casing
Angle is 9 °, rotating speed 2000r/min.
Operational effect is as follows：
(1) output of pump is more steady, and pulsation is small：Only swash plate pump, inclined shaft pumping flow pulsation 1/4.
(2) it is efficient：Under the rotating speed of 2000r/min, transmission efficiency 92.4%.
(3) noise is low：About 67dbA.
(4) light weight：About 20KG, and inclined shaft pump is about 26KG, swash plate pump is about 50KG.
Claims (9)
1. a kind of symmetrical shaft type quantifies axial plunger pump, it is characterised in that：The quantitative axial plunger pump by transmission shaft (1),
Bearing, axial positioning sleeve, housing unit, middle casing (8), drive ball pair, part of cylinder block, plunger bearing (9), plunger and flow
Disk is formed；Plunger bearing (9) connection is arranged on the middle part of transmission shaft (1), and the circumferencial direction of the plunger bearing (9) is equipped with
Several cylindrical holes (34) are uniformly staggeredly equipped with left ball hinged support (31) and right ball hinged support in the cylindrical hole (34)
(32), the left end of the plunger bearing (9) is equipped with Left Drive ball pair (6), and the right end of the plunger bearing (9) is equipped with right drive ball
Secondary (11), the Left Drive ball secondary (6) outside are equipped with left cylinder body component (7), right cylinder are equipped on the outside of the right drive ball secondary (11)
Body component (10)；The left cylinder body component (7) and right cylinder body component (10) are by cylinder sleeve (35), cylinder body (36), axially position ring
(38) it is formed with ball countershaft to locating piece (39), the ball countershaft is arranged on the inside of cylinder body (36) to locating piece (39), described
Axially position ring (38) is fastened on cylinder after locating piece (39) progress axially position to ball countershaft by sunk screw (37)
On the right side of body (36), the left side circumferencial direction of the cylinder body (36) is equipped with several mounting hole of cylinder sleeve (40), described
Cylinder sleeve (35) is arranged in the mounting hole of cylinder sleeve (40), the cylinder sleeve (35) in the left cylinder body component (7) and left ball hinged support
(31) left plunger (18) is equipped between, is equipped between the cylinder sleeve (35) and right ball hinged support (32) in the right cylinder body component (10)
Right plunger (17), the Left Drive ball secondary (6) left side are equipped with left axial positioning sleeve (20), are set on the right side of the right drive ball secondary (11)
There is right axial positioning sleeve (14), left bearing (4), the right axial positioning sleeve (14) are equipped on the left of the left axial positioning sleeve (20)
Right end is equipped with right bearing (13), is arranged with left shell component (19) on the left bearing (4), is arranged on the right bearing (13)
The inner face of right shell body component (15), the left shell component (19) and right shell body component (15) the tilting with swash plate (29)
Structure, one end is equipped with left end shell pressure oil window (25) on the swash plate (29) of the left shell component (19), and the other end is equipped with left end
Shell oil sucking window (26)；One end is equipped with right end shell pressure oil window (27) on the swash plate (29) of the right shell body component (15), another
End is equipped with right end shell oil sucking window (28), and left end shell suction pressure oil window forms phase angle with right end shell suction pressure oil window；The left side
Left valve plate (5), the right shell body component (15) and right cylinder body component are equipped between housing unit (19) and left cylinder body component (7)
(10) between be equipped with right valve plate (12), the left valve plate (5), right valve plate (12) by elastic cylindrical pin (30) respectively with
Oblique disk structure on left shell component (19), right shell body component (15) is connected, and the middle casing (8) is by connecting bolt
(16) be fastened between left shell component (19) and right shell body component (15), the outside of the middle casing (8) be equipped with into
Hydraulic fluid port (21) and oil outlet (22), the middle casing (8) are internally provided with intermediate oil suction slot (23) and intermediate pressure oil groove (24), institute
It states oil inlet (21) with intermediate oil suction slot (23) to be connected, the oil outlet (22) is connected with intermediate pressure oil groove (24), described
The left end of intermediate oil suction slot (23) is connected with the left end shell oil sucking window (26), the right end of the intermediate oil suction slot (23) with
The right end shell oil sucking window (28) is connected, left end and the left end shell pressure oil window (25) of the intermediate pressure oil groove (24)
It is connected, the right end of the intermediate pressure oil groove (24) is connected with the right end shell pressure oil window (27).
2. a kind of symmetrical shaft type according to claim 1 quantifies axial plunger pump, it is characterised in that：The transmission shaft
(1) middle part is equipped with spline, plunger bearing (9), Left Drive ball secondary (6) and secondary (11) center of right drive ball of matched connection
It is equipped with splined hole (33).
3. a kind of symmetrical shaft type according to claim 1 quantifies axial plunger pump, it is characterised in that：The left plunger
(18) identical with the structure of right plunger (17), one end of left and right plunger is spherical structure, and the other end is hemispherical dome structure, spherical junctions
Structure and hemispherical dome structure are internally provided with interconnected elongated hole (41), and spherical structure is articulated and connected with left and right ball hinged support,
Hemispherical dome structure is slidably and sealingly connected with cylinder sleeve formation.
4. a kind of symmetrical shaft type according to claim 1 quantifies axial plunger pump, it is characterised in that：The left bearing
Left-external side is equipped with washer (3) and sealing ring (2).
5. a kind of symmetrical shaft type according to claim 1 quantifies axial plunger pump, it is characterised in that：The left cylinder portion
Part (7) and right cylinder body component (10), Left Drive ball secondary (6) and right drive ball secondary (11), left plunger (18) and right plunger (17), a left side
Ball hinged support (31) and right ball hinged support (32) are axisymmetricly set centered on plunger bearing (9).
6. a kind of symmetrical shaft type according to claim 1 quantifies axial plunger pump, it is characterised in that：The left end shell is inhaled
Pressure oil window forms phase angle with right end shell suction pressure oil window, and the value range at phase angle is 3~15 °.
7. a kind of symmetrical shaft type according to claim 1 quantifies axial plunger pump, it is characterised in that：The left plunger
(18) it is identical with the number of right plunger (17), it is 7~12.
8. a kind of symmetrical shaft type according to claim 1 quantifies axial plunger pump, it is characterised in that：The left valve plate
(5) identical with the angle of inclination of right valve plate (12), angle of inclination is 3~9 °.
9. a kind of symmetrical shaft type quantifies the control method of axial plunger pump, which is characterized in that uses any one of claim 1-8
The symmetrical shaft type quantifies axial plunger pump, includes the following steps：
(1) the mechanism kinematic process of axial plunger pump；
(1-1) provides power when extraneous power to transmission shaft (1), and transmission shaft (1) forms rotary motion, and transmission shaft (1) transmits
Torque is to Left Drive ball secondary (6), right drive ball secondary (11) and plunger bearing (9)；
(1-2) Left Drive ball pair (6), right drive ball secondary (11), plunger bearing (9) drive left cylinder body component (7) and right cylinder respectively
Body component (10) rotates and small sway；
It relatively moves and swings simultaneously between (1-3) cylinder sleeve (35) and left and right plunger and complete oil suction and pressure oil action；
(2) the suction pressure oil process of axial plunger pump；
From plunger X in (2-1) right shell body component (15)1To plunger X6Form oil suction, the cavity volume that each plunger and cylinder sleeve (35) are formed
It is become larger by small, oil-absorbing process is completed in oil sucking window；
From plunger P in (2-2) right shell body component (15)1To plunger P6Form pressure oil, the cavity volume that each plunger and cylinder sleeve (35) are formed
By tapering into greatly, pressure oil process is completed in pressure oil window；
(2-3) intermediate oil suction slot (23) and intermediate pressure oil groove (24), intermediate oil suction slot (23) since middle casing (8) is internally provided with
Left end be connected with left end shell oil sucking window (26), the right end of intermediate oil suction slot (23) is connected with right end shell oil sucking window (28)
Logical, the left end of intermediate pressure oil groove (24) is connected with left end shell pressure oil window (25), the right end and right end of intermediate pressure oil groove (24)
Shell pressure oil window (27) is connected, and suction pressure oil process is realized by the oil circuit that intermediate suction pressure oil groove connects；
The suction pressure oil process of (2-4) left shell component and the suction pressure oil process of right shell body form advanced or hysteresis motion phase
Angle；
(3) lubrication and seal process of axial plunger pump；
During pressure oil, pressure is changed from small to big, force plunger cavity oil pressure effect under radially occur it is micro swell, column
Spherical surface forms the line slided with inboard wall of cylinder liner and contacts, and realize sealing beyond the Great Wall；Meanwhile column is realized by the elongated hole in the middle part of plunger
The self-lubricating of plug and ball hinged support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810185238.4A CN108167151A (en) | 2018-03-07 | 2018-03-07 | A kind of symmetrical shaft type quantifies axial plunger pump and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810185238.4A CN108167151A (en) | 2018-03-07 | 2018-03-07 | A kind of symmetrical shaft type quantifies axial plunger pump and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108167151A true CN108167151A (en) | 2018-06-15 |
Family
ID=62511821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810185238.4A Pending CN108167151A (en) | 2018-03-07 | 2018-03-07 | A kind of symmetrical shaft type quantifies axial plunger pump and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108167151A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985325A (en) * | 2019-12-20 | 2020-04-10 | 潍柴动力股份有限公司 | Axial plunger pump motor and engineering machinery |
| CN111022281A (en) * | 2019-12-26 | 2020-04-17 | 北京工业大学 | Sea water desalination high-pressure pump with few friction pairs and energy recovery integrated unit |
| WO2020182205A1 (en) * | 2019-03-13 | 2020-09-17 | 青岛科而泰控股有限公司 | Duplex axial plunger motor |
| CN113107800A (en) * | 2021-05-17 | 2021-07-13 | 燕山大学 | Forced self-cooling inclined shaft type plunger pump with oil inlet of shell |
-
2018
- 2018-03-07 CN CN201810185238.4A patent/CN108167151A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020182205A1 (en) * | 2019-03-13 | 2020-09-17 | 青岛科而泰控股有限公司 | Duplex axial plunger motor |
| CN110985325A (en) * | 2019-12-20 | 2020-04-10 | 潍柴动力股份有限公司 | Axial plunger pump motor and engineering machinery |
| CN111022281A (en) * | 2019-12-26 | 2020-04-17 | 北京工业大学 | Sea water desalination high-pressure pump with few friction pairs and energy recovery integrated unit |
| CN113107800A (en) * | 2021-05-17 | 2021-07-13 | 燕山大学 | Forced self-cooling inclined shaft type plunger pump with oil inlet of shell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108167151A (en) | A kind of symmetrical shaft type quantifies axial plunger pump and its control method | |
| WO2007104257A1 (en) | An axial plunger pump or motor | |
| CN111997865A (en) | Miniature water hydraulic motor pump driven by roller carrier | |
| CN101216022B (en) | Plunger ported axial plunger hydraulic pump | |
| CN201218170Y (en) | Plunger flow-distribution axial plunger hydraulic pump | |
| CN205370438U (en) | Gas drilling screw rod drilling tool of gas drive liquid self -loopa | |
| CN208416832U (en) | A kind of plane hydrostatic driving structure and bent axis type axial piston pump or motor comprising the structure | |
| CN102556321A (en) | Floating type spherical rotating vane steering engine | |
| US4557347A (en) | Fluid pumps, fluid motors and devices, wherein they are applied | |
| CN208024514U (en) | A kind of symmetrical shaft type quantifies axial plunger pump | |
| CN110748468B (en) | High-speed high-pressure axial plunger pump | |
| US4745846A (en) | Devices which take in and expel fluid by a chamber which may border a coned ring | |
| WO2009121250A1 (en) | A positive-displacement mechanism for a rotary fluid machine | |
| CN203548210U (en) | Spherical volume delivery pump | |
| CN208416833U (en) | A kind of sphere static pressure driving structure and bent axis type axial piston pump or motor comprising the structure | |
| CN114483513A (en) | Single-plunger servo variable pump | |
| CN206338159U (en) | A kind of unload-type independent variable radial plunger pump | |
| CN212898824U (en) | Miniature water hydraulic motor pump driven by roller carrier | |
| CN209510547U (en) | A kind of axial plunger pump | |
| CN105484665A (en) | Gas drive liquid self-circulation gas drilling positive screw drill | |
| CN112610438A (en) | Piston pump | |
| CN207894603U (en) | A kind of regulating mechanism of symmetrical shaft type axial variable displacement plunger pump | |
| CN103062037A (en) | Axial plunger pump | |
| CN109488550B (en) | Reciprocating liquid pump driven by bevel gear and used for engineering vehicle | |
| CN219159113U (en) | Plunger pump with swash plate for distributing flow |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |