CN110206702A - A kind of axial plunger component pump - Google Patents
A kind of axial plunger component pump Download PDFInfo
- Publication number
- CN110206702A CN110206702A CN201910528358.4A CN201910528358A CN110206702A CN 110206702 A CN110206702 A CN 110206702A CN 201910528358 A CN201910528358 A CN 201910528358A CN 110206702 A CN110206702 A CN 110206702A
- Authority
- CN
- China
- Prior art keywords
- piston shoes
- shoes disk
- swash plate
- gear ring
- disk
- 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.)
- Granted
Links
- 108090000565 Capsid Proteins Proteins 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims description 33
- 230000003068 static effect Effects 0.000 claims description 17
- 239000000446 fuel Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 9
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
- F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
- F04B1/124—Pistons
- F04B1/126—Piston shoe retaining means
-
- 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
- F04B1/14—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 stationary cylinders
- F04B1/141—Details or component parts
- F04B1/145—Housings
-
- 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
- F04B1/14—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 stationary cylinders
- F04B1/16—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 stationary cylinders having two or more sets of cylinders or pistons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of axial plunger component pumps, including procapsid and it is located at the intracorporal pump shaft of front housing and back casing, described pump shaft one end is fixedly connected with swash plate, it is abutted on the swash plate and is connected with piston shoes disk, plunger assembly is provided between the piston shoes disk and back casing, rotary teeth circle is arranged with outside the piston shoes disk, the rotation gear ring is in be fixedly connected with piston shoes disk, fixed gear ring is arranged on the back casing, the fixed gear ring is connected with back casing in axial restraint, and the rotation gear ring is engaged in fixed gear ring.In pump shaft driving swash plate rotation, swash plate squeezes piston shoes disk and swings, and realizes plunger assembly acting.Fixed gear ring can play the role of a limition orientation to rotation gear ring in the process, which can reflect in piston shoes disk, play position-limiting action to the swing of piston shoes disk, stablize piston shoes disk along certain track swing.It does not need again to limit piston shoes disk by outer balance at this time, reduces the complexity of piston shoes disk stress, swing piston shoes disk more stable can smoothly.
Description
Technical field
The present invention relates to hydraulic power original parts, and in particular to a kind of axial plunger component pump.
Background technique
Pump is the dynamical element of pressure system, and the structure type of pump mainly includes plunger assembly formula, vane type and gear type,
For plunger assembly pump because its sealing effect is good, the advantages such as volumetric efficiency height and in comparison PV value are relatively low are extensive by market institute
Using.
Such as two of Publication No. CN105114278A and Publication No. CN105090008A inventions, in this two patents
Disclose a kind of novel axial plunger assembly pump, by adding a cross balance in two patents, the cross balance packet
Include interior balance and outer balance, the outer balance is connected to back casing, and interior balance is rotationally connected with outer balance, in the interior balance
It is latent to be provided with piston shoes disk, several sphere holes, the first end ball of the plunger assembly of the plunger assembly are provided on the piston shoes disk
It is articulated on the piston shoes disk of interior balance, the plunger assembly head of the other end is then snug fit in cylinder bore.
The program changes the mode that driving back casing rotation in the prior art drives plunger assembly movement, oblique by driving
The rotation of disk, swash plate squeeze the acting of the swing realization plunger assembly of inner rotary table, improve plunger assembly and back casing stress, with
The internal structure design of this global optimization plunger assembly pump so that structure is simpler improves service life, reduces into
This.
In actual application, when swash plate rotation is swung by balance in its slope driving, piston shoes disk be will receive
Diametric radial compression power, the radial compression power can be very big in the case where heavy load, this radial compression power is logical
It crosses piston shoes disk and is transferred to interior balance, then outer balance is transferred to by interior balance, this radial compression power is mainly undertaken by outer balance, if
It is easy to bring damage to cross balance if cross balance intensity is not high enough.
Therefore applicant has developed the plunger assembly pump of a new generation, Publication No. CN106089677A, the disclosure of the invention again
A kind of axial plunger component pump, including procapsid and it is located at the intracorporal pump shaft of front housing and back casing, described pump shaft one end is solid
Surely it is connected with swash plate, is abutted on the swash plate and be connected with interior balance, outer balance and described interior is arranged with outside the interior balance
Balance is articulated in outer balance, and the outer balance is articulated in procapsid, is provided with plunger between the interior balance and back casing
Component is provided with central axis, mutually contradicts between the central axis and interior balance and work as swash plate between the interior balance and swash plate
When circumferentially rotating, relative rotation relationship is formed between the swash plate and interior balance.
By the way that central axis is arranged between swash plate and piston shoes disk, kept while central axis is set swash plate and piston shoes disk it
Between the relationship that relatively rotates, when swash plate rotation squeezes piston shoes disk using inclined-plane, the withstanding effect of central axis and piston shoes disk
The radial compression power that piston shoes disk is subject to can not transmitted into interior balance and outer balance, and turned by central axis as receiving, so
It can be to avoid the damage of the radial compression power for piston shoes disk, interior balance and outer balance.
But under swash plate driving, interior balance and the movement of piston shoes balance and stress condition are complicated, hold between a variety of mechanical structures
Easily there is stuck phenomenon.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide in view of the deficienciess of the prior art, originally
Invention is designed to provide a kind of axial plunger component pump, by rotation gear ring and fixed gear ring come the swing of guide slip shoe disk
Track, and outer balance and interior balance are no longer needed, the complexity of piston shoes disk stress is reduced, swing it can more smoothly.
To achieve the above object, the present invention provides the following technical scheme that
A kind of axial plunger component pump, including procapsid, be located at the intracorporal pump shaft of front housing, back casing, cylinder body and match liquid, it is described
Pump shaft one end be fixedly connected with swash plate, abutted on the swash plate and be connected with piston shoes disk, the piston shoes disk and back casing it
Between be provided with plunger assembly, it is characterized in that: be arranged with rotary teeth circle outside the piston shoes disk, the rotation gear ring and piston shoes disk are in consolidating
It is fixed to connect, fixed gear ring is arranged on the back casing, the fixed gear ring and back casing are in axial restraint, the rotation gear ring
It is engaged in fixed gear ring.
By using above-mentioned technical proposal, in pump shaft driving swash plate rotation, swash plate squeezes piston shoes disk and swings, and realizes plunger group
Part acting.Rotation gear ring keeps always meshing state with fixed gear ring in the process, therefore fixed gear ring can have rotation gear ring
The effect of one limition orientation, since rotation gear ring and piston shoes disk are in axial restraint, therefore the guiding force can reflect in piston shoes disk,
Position-limiting action is played to the swing of piston shoes disk, stablizes piston shoes disk along certain track swing.It does not need at this time again through outer balance
Piston shoes disk is limited, the complexity of piston shoes disk stress is reduced, swing piston shoes disk more stable can smoothly.
The further setting of the present invention are as follows: realize that nested type connects by setting spline between the fixed gear ring and back casing
It connects.
By using above-mentioned technical proposal, make rotation gear ring and piston shoes disk, fixed gear ring and back casing that can stablize fixed company
It is connected together.And spline connection makes the junction of piston shoes disk and rotation gear ring will not be by excessive concentrated stress, it can be by stress
It is uniformly distributed, to improve the service life of piston shoes disk.And make rotation gear ring that there can be the play in an axial direction with respect to piston shoes disk
Offset reduces a possibility that piston shoes disk is stuck.
The further setting of the present invention are as follows: central axis, the central axis and cunning are provided between the piston shoes disk and swash plate
It is mutually contradicted between boots disk, and when swash plate circumferentially rotates, forms relative rotation relationship between the swash plate and piston shoes disk.
By using above-mentioned technical proposal, swash plate linkage is driven when pump shaft rotates, swash plate squeezes piston shoes disk and swings, piston shoes disk
To will receive extruding force radially, the extruding force of the radial direction with outer load increase.If piston shoes disk is arranged
If having central axis, extruding force radially is then supported by central axis, just will not be by radial direction for piston shoes disk
The influence of extruding force, even if under high load, the intensity of central axis is also enough to support the radial compression power.Diameter is shared in central axis
Under the premise of power, it not only in weight, and is in ruler that the piston shoes disk can make very light and handy in production
It can also reduce accordingly on very little, the reduction of weight can allow piston shoes disk more smoothly light and handy when swing, in size
On reduce can for the axial plunger component pump overall dimensions bring diminution, it is simple for generally processing method,
It is also safe and reliable in structure.
The further setting of the present invention are as follows: sphere hole, plunger assembly one end ball are provided on the piston shoes disk
It is articulated in sphere hole, the central axis passes through piston shoes disk and inconsistent with piston shoes disk.
By using above-mentioned technical proposal, the plunger assembly of some is in during axial plunger component pump operation
Hydraulic fluid stroke makes the plunger assembly backhaul in imbibition stroke by whole piston shoes disk so that piston shoes disk is pressed on swash plate.
By plunger assembly ball-joint in piston shoes disk, improves spherical pair between plunger assembly and piston shoes disk and loosen, pull even fragmentation
The phenomenon that.Simultaneously flow to the liquid between central axis and piston shoes disk also can fair current arrive between central axis and piston shoes disk, reduce wear,
Keep movement more smooth.
The further setting of the present invention are as follows: the plunger assembly is equipped with seal assembly far from piston shoes disk one end, with cylinder bore
It is slidably matched.By using above-mentioned technical proposal, so that moving component is not interfered, make plunger assembly can be more smoothly with respect to rear shell
Body movement.
The further setting of the present invention are as follows: swash plate is fixed in described central axis one end, and the other end of the central axis is nested
It is inconsistent in being realized in piston shoes disk and between the central axis and piston shoes disk by setting bearing.
By using above-mentioned technical proposal, central axis is fixed on swash plate, and swash plate rotation drives central axis linkage, central axis
It is provided with bearing between the other end and piston shoes disk, piston shoes disk is not will drive when realizing swash plate rotation and rotates together, by central axis
As sharing for radial compression power, avoids the extruding force and piston shoes adjustment debit is hurt.
The further setting of the present invention are as follows: described be equipped with liquid side draws liquid mouth, described to draw with being equipped with connection in liquid
The drain component for fuel feeding of liquid mouth.
By using above-mentioned technical proposal, rotated in pump shaft, while realizing plunger assembly acting, can by draw liquid mouth to
Fluid injection in drain component, lubricating fluid flow to the plunger assembly by drain component and pump junction between each part, formed quiet
Pressure support move plunger assembly pump can smoothly relatively, reduce the abrasion between the part that movement generates.Pass through lubrication
The effect of liquid eliminates roller bearing component, reduces cost of manufacture.And procapsid can be done it is smaller, and then reduce plunger group
The volume of part pump.
The further setting of the present invention are as follows: the swash plate circumferentially offers radial static pressure branch back to one lateral edge pump shaft of central axis
Slot is supportted, the swash plate offers axial static pressure support slot back to one side end face of central axis, and the drain component is connected to highly pressurised liquid
Lead to axial static pressure support slot and radial static pressure support slot.
By using above-mentioned technical proposal, in pump shaft rotation process, central axis rotation, at this time in axial static pressure support slot
Lubricating fluid formed static pressure support, the rubbing surface between swash plate and axle sleeve is separated, between swash plate and axle sleeve formed static pressure branch
It holds, to realize fluid friction, reduces coefficient of friction, the more smooth stabilization of operation for pumping plunger assembly.
The invention has the following advantages that 1, rotation gear ring and fixed gear ring carry out the swinging track of guide slip shoe disk, and no longer
Outer balance is needed, the complexity of piston shoes disk stress is reduced, swing it can more smoothly, plunger assembly is made to pump stable operation；
2, plunger assembly pump overall volume can be reduced；3, service life is longer；4, only by the way that lubricating fluid need to be passed through in drain component one end
The place that lubricating fluid can be transported to all required lubrications, is lubricated the movement of each part and fluid-tight, reduces zero
The abrasion of part extends its service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment one；
Fig. 2 is the structural schematic diagram of embodiment two；
Fig. 3 is the structural schematic diagram of embodiment three；
Fig. 4 is the cross-sectional view in embodiment three at swash plate；
Fig. 5 is the structural schematic diagram of example IV；
Fig. 6 is the structural schematic diagram of embodiment five；
Fig. 7 is the cross-sectional view in embodiment five at swash plate；
Fig. 8 is the structural schematic diagram of embodiment six.
Appended drawing reference: 1, procapsid；2, pump shaft；3, back casing；4, swash plate；5, piston shoes disk；6, central axis；7, sphere hole；
8, gear ring is rotated；9, fixed gear ring；10, spline；11, plunger assembly；12, drain component；13, the first oil supply gallery；14, draw
Liquid mouth；15, the second oil supply gallery；16, third oil supply gallery；17, the 4th oil supply gallery；18, the 5th oil supply gallery；19, caulking groove；
20, cylinder roller bearing；21, raised；22, thrust ball bearing；23, radial static pressure support slot；24, cylinder body；25, match liquid；26,
Axial static pressure support slot；27, engagement adjustment gasket.
Specific embodiment
Referring to attached drawing, the present invention will be further described.
Embodiment one:
As shown in Figure 1, a kind of axial plunger pump, including procapsid 1, is rotationally connected with the pump shaft 2 of procapsid 1 and is fixedly installed in
Back casing 3 in procapsid 1.Pump shaft 2 is fixedly connected with swash plate 4 with respect to 3 one end of back casing, and swash plate 4 is supported with respect to 3 side of back casing
It is connected to piston shoes disk 5.Plunger assembly 11 is provided between piston shoes disk 5 and back casing 3.
Pump shaft 2 can drive swash plate 4 to rotate when rotating, swash plate 4 can drive piston shoes disk 5 to swing during rotation, piston shoes disk 5
Driving plunger assembly 11 does work during the swing, realizes pressure oil and backhaul.
As shown in Figure 1, reducing abrasion of the pump shaft 2 in rotation, pump shaft 2 is with before to rotate pump shaft 2 can more smoothly
Angular contact ball bearing and tapered roller bearing are equipped between shell 1, angular contact ball bearing is located at tapered roller bearing far from swash plate 4
Side.
As shown in Figure 1, it is more stable in order to rotate piston shoes disk 5, it is arranged with rotary teeth circle 8 outside piston shoes disk 5, rotates gear ring
Connection is realized by setting spline 10 between 8 and piston shoes disk 5, to make to rotate gear ring 8 and piston shoes disk 5 in circumferentially fixed.Rear shell
Fixing sleeve is equipped with fixed gear ring 9 on body 3, realizes connection by setting spline 10 between fixed gear ring 9 and back casing 3.Rotary teeth
Circle 8 is engaged in fixed gear ring 9, and rotation gear ring 8 can be rotated relative to fixed gear ring 9.
It is driven in 5 swing process of piston shoes disk in swash plate 4, rotation gear ring 8 is driven by piston shoes disk 5 and swings, rotation gear ring 8 and solid
Fixed tooth circle 9 is constantly in meshing state, can play guiding role to piston shoes disk 5, swings piston shoes disk 5 along a fixation locus.
As shown in Figure 1, being provided with central axis 6 between piston shoes disk 5 and swash plate 4,6 one end of central axis is fixedly connected on swash plate 4.
6 other end of central axis passes through piston shoes disk 5.Bearing is equipped between central axis 6 and piston shoes disk 5, bearing outer ring is fixedly connected on piston shoes
5 inner wall of disk, 7 inner ring of bearing are fixedly connected on 6 outer wall of central axis.To make central axis 6 be rotationally connected with piston shoes disk 5, realize oblique
Disk 4 and piston shoes disk 5 can relatively rotate.Bearing is deep groove ball bearing.Central axis 6 can undertake the radial force that piston shoes disk 5 is subject to, and reduce
A possibility that piston shoes disk 5 is crushed.
As shown in Figure 1, plunger assembly 11 is equipped with several and along the axial setting of pump shaft 2.Several 11 edges of plunger assembly
Circumferentially it is distributed between piston shoes disk 5 and back casing 3.Sphere hole 7 is provided on piston shoes disk 5,11 one end flexural pivot of plunger assembly is connected to
In sphere hole 7, and 11 other end of plunger assembly penetrates in back casing 3 and is slidably connected to back casing 3.In order to make plunger assembly 11
It can more smoothly be slided with respect to back casing 3, sectional area of the plunger assembly 11 far from 5 one end of piston shoes disk is close greater than plunger assembly 11
The sectional area of 5 one end of piston shoes disk.
The working principle of the plunger pump is as follows:
When external impetus driving pump shaft 2 rotates, the rotation of pump shaft 2 drives swash plate 4 to move, and central axis 6 can turn together with swash plate 4
It is dynamic, and piston shoes disk 5 will not then be rotated with the rotation of central axis 6.Extruding of the piston shoes disk 5 by swash plate 4 puts piston shoes disk 5
It is dynamic.
It rotates gear ring 8 in this process and fixed gear ring 9 is constantly in meshing state, make piston shoes disk 5 can be along certain track
Stable oscillation.So that each plunger assembly 11 moves reciprocatingly along axial direction, and back casing 3 then remain stationary it is motionless.When
Pump shaft 2 drives swash plate 4 to rotate a circle, and each imbibition of each plunger assembly 11, hydraulic fluid are primary, with the continuous rotation of pump shaft 2, each column
The also continuous complete independently suction, the movement of hydraulic fluid of plug assembly 11, so that plunger pump be made to work normally.
Due to rotating the presence of gear ring 8 and fixed gear ring 9, do not need again by outer balance in the prior art to piston shoes disk
5 are limited, and the complexity of 5 stress of piston shoes disk is reduced, and swing piston shoes disk 5 more stable can smoothly.It can also reduce simultaneously
Manufactured volume needed for procapsid 1, and then reduce the overall volume of plunger pump.
Embodiment two:
The difference of embodiment two and embodiment one is, as shown in Fig. 2, being arranged with engagement adjustment gasket 27, engagement on back casing 3
Adjustment gasket 27 is located at fixed gear ring 9 far from rotation 8 side of gear ring.Engagement adjustment 27 two sides of gasket are pushed against respectively in procapsid 1
With fixed gear ring 9 far from rotation 8 side of gear ring.Adjustment 27 thickness of gasket is engaged by adjusting, rotation gear ring 8 is adjusted and fixes
Meshing state between gear ring 9 run the plunger pump can more smoothly.
Embodiment three:
Embodiment three is equipped with connection and draws as shown in figure 3, back casing 3 is equipped with far from 1 one end of procapsid draws liquid mouth 14 in back casing 3
The drain component 12 of liquid mouth 14.Drain component 12 includes the connecting tube 12 of connection procapsid 1 and back casing 3, procapsid 1, connection
The first oil supply gallery 13 is offered in pipe 12 and back casing 3, the first fuel feeding on procapsid 1, connecting tube 12 and back casing 3 is logical
Road 13 is interconnected, and liquid mouth 14 is drawn in the connection of the first oil supply gallery 13.The first oil supply gallery 13 in procapsid 1 is communicated with fuel feeding
To the second oil supply gallery 15 of 1 contact surface of pump shaft 2 and procapsid.
As shown in Figure 3 and Figure 4, swash plate 4 offers axial static pressure support slot 23 back to 6 one lateral edge pump shaft of central axis 2 is circumferential,
Second oil supply gallery 15 is connected to static pressure support slot 23.
The third oil supply gallery 16 that liquid mouth 14 is drawn in connection is additionally provided on back casing 3, third oil supply gallery 16 is separate to draw liquid mouth
The contact surface of the connection of 14 one end plunger assembly 11 and back casing 3.The 4th oil supply gallery 17 is offered on plunger assembly 11, the 4th supplies
Oily 17 one end of channel is connected to third oil supply gallery 16, and the contact surface of the other end connection piston shoes disk 5 and plunger assembly 11.Piston shoes disk
The 5th oil supply gallery 18 is offered in 5,18 one end of the 5th oil supply gallery is connected to the contact surface of piston shoes disk 5 and plunger assembly 11, and
The contact surface of the other end connection swash plate 4 and piston shoes disk 5.
Example IV:
The difference of example IV and embodiment one is, as shown in figure 3, back casing 3 is equipped with far from 1 one end of procapsid draws liquid mouth
14, it is additionally provided with the third oil supply gallery 16 that liquid mouth 14 is drawn in connection on back casing 3, third oil supply gallery 16 is far from drawing 14 one end of liquid mouth
It is connected to the contact surface of plunger assembly 11 and back casing 3.The 4th oil supply gallery 17, the 4th oil supply gallery are offered on plunger assembly 11
17 one end are connected to third oil supply gallery 16, and the contact surface of the other end connection piston shoes disk 5 and plunger assembly 11.It is opened in piston shoes disk 5
Equipped with the 5th oil supply gallery 18,18 one end of the 5th oil supply gallery is connected to the contact surface of piston shoes disk 5 and plunger assembly 11, and the other end
It is connected to the contact surface of swash plate 4 and piston shoes disk 5.
Embodiment five:
Embodiment five, as shown in fig. 6, being not provided with central axis 6.The caulking groove 19 for being embedded piston shoes disk 5 is offered in swash plate 4.
Piston shoes disk 5 is embedded in caulking groove 19 and is rotationally connected with caulking groove 19.
Back casing 3 is equipped with far from 1 one end of procapsid draws liquid mouth 14, and the drain group that liquid mouth 14 is drawn in connection is equipped in back casing 3
Part.Drain component includes the connecting tube 12 for connecting procapsid 1 and back casing 3, is opened in procapsid 1, connecting tube 12 and back casing 3
Equipped with the first oil supply gallery 13, the first oil supply gallery 13 on procapsid 1, connecting tube 12 and back casing 3 is interconnected, and first
Liquid mouth 14 is drawn in the connection of oil supply gallery 13.The first oil supply gallery 13 in procapsid 1 is communicated with fuel feeding and connects to pump shaft 2 and procapsid 1
Second oil supply gallery 15 of contacting surface.
As shown in Figure 6 and Figure 7, swash plate 4 offers axial static pressure support slot 23 back to 6 one lateral edge pump shaft of central axis 2 is circumferential,
Second oil supply gallery 15 is connected to static pressure support slot 23.
The third oil supply gallery 16 that liquid mouth 14 is drawn in connection is additionally provided on back casing 3, third oil supply gallery 16 is separate to draw liquid mouth
The contact surface of the connection of 14 one end plunger assembly 11 and back casing 3.The 4th oil supply gallery 17 is offered on plunger assembly 11, the 4th supplies
Oily 17 one end of channel is connected to third oil supply gallery 16, and the contact surface of the other end connection piston shoes disk 5 and plunger assembly 11.Piston shoes disk
The 5th oil supply gallery 18 is offered in 5,18 one end of the 5th oil supply gallery is connected to the contact surface of piston shoes disk 5 and plunger assembly 11, and
The contact surface of the other end connection swash plate 4 and piston shoes disk 5.
Embodiment six:
Embodiment six, as shown in figure 8, being equipped with cylinder roller bearing 20 between caulking groove 19 and piston shoes disk 5, cylinder roller bearing 20 is held
Fixing sleeve is set to outside piston shoes disk 5, and fixation is embedded in swash plate 4.19 inner bottom surface of caulking groove is equipped with the protrusion 21 of cylindrical type, protrusion 21
Fixed sleeves are equipped with thrust ball bearing 22.The fixation of thrust ball bearing 22 is embedded in piston shoes disk 5.
Back casing 3 is equipped with far from 1 one end of procapsid draws liquid mouth 14, and the third that liquid mouth 14 is drawn in connection is additionally provided on back casing 3
Oil supply gallery 16, third oil supply gallery 16 is far from the contact surface for drawing 14 one end of liquid mouth connection plunger assembly 11 and back casing 3.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of axial plunger component pump, including procapsid (1), the pump shaft (2) being located in procapsid (1), back casing (3), cylinder
Body (24) and match liquid (25), the pump shaft (2) one end is fixedly connected with swash plate (4), and connection is abutted on the swash plate (4)
Have piston shoes disk (5), plunger assembly (11) is provided between the piston shoes disk (5) and back casing (3), it is characterized in that: the cunning
It is arranged with rotary teeth circle (8) outside boots disk (5), the rotation gear ring (8) is in be fixedly connected with piston shoes disk (5), the back casing (3)
On be arranged with fixed gear ring (9), the fixed gear ring (9) and back casing (3) are in axial restraint, and the rotation gear ring (8) is engaged
In fixed gear ring (9).
2. a kind of axial plunger component pump according to claim 1, it is characterized in that: the fixed gear ring (9) and back casing
(3) nested type connection is realized by setting spline (10) between.
3. a kind of axial plunger component pump according to claim 2, it is characterized in that: the piston shoes disk (5) and swash plate (4) it
Between be provided with central axis (6), mutually contradicted between the central axis (6) and piston shoes disk (5), and when swash plate (4) circumferentially rotates,
Relative rotation relationship is formed between the swash plate (4) and piston shoes disk (5).
4. a kind of axial plunger component pump according to claim 3, it is characterized in that: being provided on the piston shoes disk (5)
Sphere hole (7), the plunger assembly (11) one end flexural pivot are connected in sphere hole (7), and the central axis (6) passes through piston shoes disk
(5) and it is inconsistent with piston shoes disk (5).
5. a kind of axial plunger component pump according to claim 4, it is characterized in that: the plunger assembly (11) is far from piston shoes
Disk (5) one end is equipped with seal assembly, is slidably matched with cylinder bore.
6. a kind of axial plunger component pump according to claim 5, it is characterized in that: the central axis (6) one end is fixed on
Swash plate (4), the other end of the central axis (6) are nested in piston shoes disk (5) and between the central axis (6) and piston shoes disk (5)
It realizes inconsistent.
7. a kind of axial plunger component pump according to claim 1, it is characterized in that: described be equipped with liquid (24) side is drawn
Liquid mouth (14), it is described with the drain component (12) for fuel feeding for drawing liquid mouth (14) in liquid (25) equipped with connection.
8. a kind of axial plunger component pump according to claim 1, it is characterized in that: the swash plate (4) is back to central axis (6)
One lateral edge pump shaft (2) circumferentially offers radial static pressure support slot (23), and the swash plate (4) is opened back to (6) one side end face of central axis
Equipped with axial static pressure support slot (26), drain component (12) the connection highly pressurised liquid leads to axial static pressure support slot (26) and diameter
To static pressure support slot (23).
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| CN201910528358.4A CN110206702B (en) | 2019-06-18 | 2019-06-18 | Axial plunger assembly pump |
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| CN201910528358.4A CN110206702B (en) | 2019-06-18 | 2019-06-18 | Axial plunger assembly pump |
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| CN110206702A true CN110206702A (en) | 2019-09-06 |
| CN110206702B CN110206702B (en) | 2021-03-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112983772A (en) * | 2021-03-30 | 2021-06-18 | 中航力源液压股份有限公司 | Axial plunger pump return device capable of reducing wear of sliding shoe |
| CN113323832A (en) * | 2021-08-03 | 2021-08-31 | 江苏恒立液压科技有限公司 | Cylinder body gasket assembly structure, plunger machine and gasket adjusting method |
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| CN112983772A (en) * | 2021-03-30 | 2021-06-18 | 中航力源液压股份有限公司 | Axial plunger pump return device capable of reducing wear of sliding shoe |
| CN113323832A (en) * | 2021-08-03 | 2021-08-31 | 江苏恒立液压科技有限公司 | Cylinder body gasket assembly structure, plunger machine and gasket adjusting method |
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| Publication number | Publication date |
|---|---|
| CN110206702B (en) | 2021-03-30 |
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Inventor after: Yue Yiming Inventor before: Yue Yiming Inventor before: Xu Bing |