CN207093295U - Axial plunger pump - Google Patents
Axial plunger pump Download PDFInfo
- Publication number
- CN207093295U CN207093295U CN201720388086.9U CN201720388086U CN207093295U CN 207093295 U CN207093295 U CN 207093295U CN 201720388086 U CN201720388086 U CN 201720388086U CN 207093295 U CN207093295 U CN 207093295U
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- China
- Prior art keywords
- swash plate
- plunger pump
- axial plunger
- straight line
- line section
- Prior art date
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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
- F04B1/12—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
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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
- F04B1/12—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
-
- 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
-
- 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
- F04B1/146—Swash plates; Actuating elements
- F04B1/148—Bearings therefor
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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
-
- 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
- F04B53/001—Noise damping
-
- 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
- F04B53/006—Crankshafts
-
- 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
- F04B53/102—Disc valves
-
- 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
- F04B53/108—Valves characterised by the material
-
- 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
- F04B53/14—Pistons, piston-rods or piston-rod connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Provide a kind of axial plunger pump, including housing, it is installed in rotation in housing and includes the entering spindle of middle tiltedly curved segment, the swash plate being installed in rotation in the oblique curved segment in the centre, one end is by bulb hinged to the swash plate and the other end is provided with multiple connecting rods of plunger, and the cylinder body for the cylinder holes being reciprocally inserted with plunger, wherein described cylinder body is fixed relative to the housing, swung as the rotation of the entering spindle swash plate does space sphere, wherein, the intersection point of the axis of the oblique curved segment of the main shaft of the entering spindle and the centre, the sphere oscillation center of the swash plate, and the center of circle of the circle of the center composition of the bulb of the multiple connecting rod is overlapped at coincidence point (A).By oversensitive coincidence, the unbalanced moments of the swash plate can be further offset, further reduces vibration and the noise of whole axial plunger pump.
Description
Technical field
The utility model is related to the field of axial plunger pump, and more particularly to it is a kind of be suitable to pumping low-viscosity (mobile) liquid, it is such as light
The axial plunger pump of water or seawater.
Background technology
Plunger pump is the important device for pumping fluid.It is moved back and forth by plunger in the cylinder holes of cylinder body, is made close
The volume of envelope working volumes changes to realize suction and spray.Plunger pump has that rated pressure is high, compact-sized, efficiency high
The advantages that facilitating with Flow-rate adjustment, is widely used in high pressure, big flow and flow need the occasion that adjusts, such as hydraulic press,
In engineering machinery and ship.
Plunger pump includes two kinds of representative forms of axial plunger pump and radial plunger pump, and axial plunger pump is due to volume
The advantages that small, and be used widely.
Traditional axial plunger pump includes cylinder body, reciprocating plunger and swash plate in cylinder body.One end of plunger exists
Move back and forth in cylinder body to suck or ejecting fluid, and the other end is for example resisted against on swash plate by piston shoes and as cylinder body rotates
And slided on swash plate along the circumferencial direction of swash plate.And it is possible to realize the row of change by adjusting the angle of inclination of swash plate
The pump of amount and pressure.
This structure is effective in terms of for highly viscous fluid, still, in the fluid to be pressurizeed for for example
During the fluid of water, because the viscosity of water is low, poor lubricity etc., the greasy property between piston shoes and swash plate is poor, thus limit tiltedly
The angle of inclination of disk, and then limit the raising of the discharge capacity and pressure of pump.
In order to overcome this problem, in the Chinese utility model patent CN100362232C of the applicant is transferred, carry
A kind of axial plunger pump for being applied to pumping low viscosity fluid is gone out, in this axial plunger pump, cylinder body is protected relative to housing
Fixation is held, plunger is arranged on swash plate by bulb, and swash plate is rotatably installed on the crank throw of live spindle, thus swash plate band
Dynamic plunger sphere is swung, and thus avoid the friction problem between swash plate and the piston shoes of plunger.But asked existing for this scheme
Topic is that live spindle is cantilever support, causes very big unbalanced moments so that in the process of running, the swing of swash plate is stable
Property it is poor, the vibration of whole pump is big, cause noise, friction the problems such as.
In order to overcome this unbalanced moments, the Chinese utility model patent CN201739111U of the applicant is being transferred
In, above-mentioned axial plunger pump is improved, i.e. so that live spindle supports for both ends, adopted near the input of main shaft
With two groups of bearings to strengthen the support to main shaft, and the radial outside of swash plate is provided with guide runner, the guide runner exists
The guide chute formed in the appropriate section of housing coordinates, to guide the swing of swash plate.But this scheme is still without can not be thorough
Bottom solves the problems, such as plunger pump vibration is big, rotational stability is poor, noise and friction are big etc., and also brings guide runner with being oriented to
The friction increase of chute, and then reduce the life-span of whole pump.Further, since main shaft in its input by two groups of bearings,
And use one group of bearings in addition in the opposite end of main shaft so that main shaft has the problem of Planar Mechanisms, thus, causes main shaft
In stress it is excessive, reduce main shaft and and then whole pump life-span.
Above-mentioned two patent is incorporated by reference in its entirety.
Therefore, still suffer to the further improved needs of this axial plunger pump.
Utility model content
In order to solve the above problems, it is proposed that the utility model.A purpose of the present utility model is to provide a kind of axle
To plunger pump, the axial plunger pump is particularly suitable for pumping low viscosity fluid, such as seawater or fresh water, and can have good flat
Weigh characteristic, reduces vibration and the noise of pump, and improve the life-span of pump.
According to one side of the present utility model, there is provided a kind of axial plunger pump, including housing, be installed in rotation on
Lead in housing and including the middle tiltedly entering spindle of curved segment, the swash plate being installed in rotation in the oblique curved segment in the centre, one end
Bulb hinged is crossed to the swash plate and the other end is provided with multiple connecting rods of plunger and has plunger reciprocally
The cylinder body for the cylinder holes being inserted, wherein the cylinder body is fixed relative to the housing, with the rotation institute of the entering spindle
State swash plate and do space sphere swing, wherein, the intersection point of the axis of the oblique curved segment of the main shaft of the entering spindle and the centre, institute
The center of circle for stating the circle of the sphere oscillation center of swash plate and the center composition of the bulb of the multiple connecting rod is overlapped in coincidence point.
Overlapped by above-mentioned intersection point, oscillation center and the center of circle, when can offset the swash plate and doing space sphere and swing
Unbalanced moments, reduce vibration and the noise of whole axial plunger pump.
It is advantageous that also including swash plate limit change, the swash plate limit change on the one hand can by connecting shaft and the swash plate
Connect in relative rotation, and on the other hand swash plate limit change is connected by the bearing pin diametrically set with the housing
So that the swash plate limit change is swingable relative to the housing around the bearing pin.
The axis of connecting shaft and the intersection point of the axis of the bearing pin and the coincidence point weight of wherein described swash plate limit change
Close.
The intersection point that change is limited by swash plate overlaps with above-mentioned coincidence point, can further offset the injustice of the swash plate
Weigh torque, further reduces vibration and the noise of whole axial plunger pump.
It is advantageous that the entering spindle also includes first straight line section, the first straight line section by bearing rotatably
Support on the housing, and is additionally provided with balance ring in the first straight line section, the balance ring be eccentric structure simultaneously
And rotated together with the entering spindle.
By setting the balance ring of eccentric structure, the unbalanced moments of the swash plate can be further offset, further drop
The vibration of low whole axial plunger pump and noise.
It is advantageous that also include flat valve, the flat valve include valve seat and suction valve core in valve seat and
Discharge valve core, it is described suction valve core and it is described discharge valve core be biased to the valve seat respectively, wherein, the valve element by
Corrosion resistant high strength light material, as titanium alloy is made.
By using corrosion resistant high strength light material so that valve element can resist the corrosion of such as seawater, and can
To mitigate its weight, the movement inertia of valve element is thus reduced.
It is advantageous that formed with ring-type between the outer surface matching surface corresponding to the valve seat of each valve element
Gap, the annular gap is for example not less than 0.5 millimeter.In addition, the valve seat forms the second gap with being engaged between element, should
Second gap is for example at 0.3 to 0.4 millimeter.
By setting above-mentioned annular gap and the second gap, impact inertia when valve element moves back and forth can be reduced.Thus
When improving the functional reliability of flat valve, corrosion resistance, Adaptability of medium, and reducing flat valve and axial plunger pump work
Vibration and noise.
Brief description of the drawings
Above and other feature, advantage and technological merit of the present utility model can be by with reference to the accompanying drawings to this realities
With in the detailed description of new preferred embodiment it is understood that in figure：
Fig. 1 is to show the principal section figure according to the axial plunger pump of embodiment of the present utility model；
Fig. 2 is the fragmentary cross-sectional view for the swash plate part for showing the axial plunger pump shown in Fig. 1；
Fig. 3 is the cross-sectional view for showing swash plate limit change；
Fig. 4 is the profile for showing flow valve block structure；
Fig. 5 is the perspective view for the balance ring for showing entering spindle and installing thereon；
Fig. 6 is Fig. 5 profile.
Embodiment
It is described in detail with reference to the accompanying drawings according to preferred embodiment of the present utility model.It is noted that the description is only
Only for illustrative purposes purpose and it is unrestricted, also, it will be appreciated by one of skill in the art that the utility model can be with a variety of sides
Formula is implemented, and should not be limited to preferred embodiment described here.
In the following description, it is noted that the description as described in direction, if outside, inner side, upside or downside are references
Direction shown in accompanying drawing is come what is made, and in order to explanation and illustration, but the utility model is not limited thereto, but can be with
It is varied from according to the concrete application situation of described part or device or installation site.
Fig. 1 shows the principal section figure according to the axial plunger pump of embodiment of the present utility model.As shown in figure 1, axle
Include housing 1 to plunger pump (hereinafter referred to as pump), entering spindle 2 is pivotally supported at the housing 1 by bearing 31 and 32
On.Specifically, as shown in Figures 2 and 3, entering spindle 2 includes first straight line section 21, middle tiltedly curved segment 22 and second straight line section
23, first straight line section 21 and second straight line section 23 are in alignment, and middle tiltedly curved segment 22 is provided integrally at first straight line section
Between 21 and second straight line section 23.As shown in figure 3, the middle tiltedly axis of curved segment 22 and the axle of the first and second straightways 21 and 22
Line can change into 15 to 40 angles spent, the angle according to the expectation flow and pressure of pump.
The first straight line section 21 of entering spindle 2 is supported on housing 1 by bearing 31, such as is supported on the end cap of housing 1
On 11, the bearing 31 is, for example, ball bearing.But the utility model is not limited thereto, other kinds of axle can also be used
Hold.Meanwhile the second straight line section 23 of entering spindle 2 is also supported on housing 1 by another bearing 32 (being also, for example, ball bearing)
On.
Middle tiltedly curved segment 22 can for example include two different diameter parts, and swash plate 5 for example passes through two different sizes
Taper roll bearing 33 is rotatably installed in middle oblique curved segment 22.
As shown in Figure 5 and Figure 6, in the first straight line section 21 of the entering spindle 2, such as by key 24, it is provided with flat
Weigh ring 25 so that entering spindle 2 and balance ring 25 can rotate jointly.Balance ring 25 includes axial component 251 and radial component
252, the axial component 251 is enclosed in the first straight line section 21 of entering spindle 2, and the inner ring of clutch shaft bearing 3 can be enclosed on this
On the excircle of axial component 251.The radial component 252 of balance ring 25 is eccentrical shape, with the rotary course of entering spindle 2
In, offset the oblique curved segment 22 in centre in entering spindle 2 and be installed on the imbalance that middle swash plate tiltedly in curved segment 22 is brought.
The swash plate 5 of axial plunger pump is described referring to Fig. 2 and Fig. 3.As described above, swash plate 5 passes through two circular cones
Roller bearing 33 is supported in the oblique curved segment 22 in centre of entering spindle 2 so that swash plate 5 tilts relative to the axis of entering spindle 2
The angle of 15 to 40 degree.Swash plate 5 includes swash plate body 51 and swash plate gland 52, and swash plate body 51 and swash plate gland 52 for example pass through
Mode connects for screw is to together.Swash plate body 51 and swash plate gland 52 respectively in a circumferential direction equally spaced formed with multiple cavitys,
So that when swash plate body 51 and swash plate gland 52 are assemblied together, corresponding cavity pieces together bulb chamber, the bulb of connecting rod
71 are contained in each bulb chamber.
For each bulb chamber, as shown in Fig. 2 for example, it is recessed cavity to form cavity in swash plate body 51,
And the cavity formed in swash plate gland 52 is Through-cavity, and the Through-cavity is on one end towards cylinder body formed with enlarging
512.The recessed cavity pieces together bulb chamber with Through-cavity.In addition, liner is distinguished in above-mentioned recessed cavity and Through-cavity
There are cushion block 513 and 523 made of by copper, the cushion block 513 and 523 coordinates, and forms the bulb 71 of tight enclosure connecting rod
Spherical hollow space, with bulb 71 formed ball pivot coordinate, with allow bulb 71 inside make spherical rotary motion.
By setting single cushion block to coordinate to form ball pivot with bulb 71 in bulb intracavitary, with bulb 71 directly and swash plate
Material forms ball pivot cooperation and compared, and can reduce the friction of bulb 71, and can be with readily replaceable when cushion block is worn, reduction
Maintenance cost.
In addition, in order to balance the unbalanced moments of swash plate 5 in the course of the work, the outer circumferential side of swash plate 5 is provided with swash plate
Change 8 is limited, on the one hand swash plate limit change 8 is for example connected by connecting shaft 81 with swash plate 5 so that swash plate limits change 8 and swash plate 5
The axis that connecting shaft 81 can be surrounded relatively rotates, on the other hand, as shown in figure 3, swash plate limit change 8 passes through two relative pins
The housing 1 of axle 82 and plunger pump is rotatably connected.Bearing pin 82 substantially differs 90 degree in a circumferential direction with connecting shaft 81.The swash plate
The concrete structure of change 8 is limited described in Chinese utility model patent CN201739163U, the patent is therefore overall by quoting
It is hereby incorporated by.
In addition, in order to further eliminate the caused unbalanced moments in rotation process of swash plate 5, entering spindle 2, swash plate 5,
Swash plate limit change 8 be further constructed so that the axis through first straight line section 21 and second straight line section 23 of entering spindle 2 with
Intersection point, the swash plate of the middle tiltedly axis of curved segment 22 make the circle that center, the center of each plunger ball 71 that sphere is swung are formed
The center of circle, the bearing pin 82 of swash plate limit change 8 and swash plate limit the joining coincidence for the connecting shaft 81 that change is connected with swash plate on one point,
Identified in figure with A and referred to as coincidence point, hereinafter referred to as four hearts overlap.
With continued reference to Fig. 1, multiple connecting rods 7 are included according to axial plunger pump of the present utility model, one end of each connecting rod 7 leads to
Cross bulb 71 to engage with the ball pivot of swash plate 5, and its other end is connected with plunger 4.Respective cylinder in the plunger 4 insertion cylinder body 10
101 in hole, with the drive of connecting rod 7 in cylinder holes 101 it is reciprocating.Cylinder body 10 is fixed relative to housing.
Reference picture 4, flat valve 9 is additionally provided with housing 1, the flat valve 9 optionally will open into the cylinder holes 101 of cylinder body
Valve plate passage be connected with the suction passage and passing away of plunger pump.The flat valve includes valve seat 91, suction valve core
92nd, inhalation valve spring 93, discharge valve core 94, discharge valve spring 95.Inhalation valve spring 93 is biased in valve by valve core 92 is sucked
On seat 91, with the suction passage 96 of canned pump, discharge valve spring 95 is biased in valve core 94 is discharged on valve seat 91 with canned pump
Passing away 97.
Above-mentioned suction valve core and discharge valve core can use corrosion resistant high strength light material, such as titanium alloy,
It is made, to mitigate its weight, thus reduces the movement inertia of valve element.
As shown in figure 4, suction valve core 92 and discharge valve core 94 are respectively installed to outer peripheral face and the matching for causing valve element
The annular slot G1 between the inner peripheral surface of part is closed for example not less than 0.5 millimeter so that reduce valve element rubbing in quick motion
Wipe resistance.In addition, sealed between valve seat 91 and housing by sealing ring.After flat valve is assembled in housing, valve seat and phase
Clearance G 2 is formed between co-operating member, the clearance G 2 is for example between 0.3 to 0.4 millimeter, when being moved back and forth for reducing valve element
Impact inertia, and then reduce noise.
The working method according to axial plunger pump of the present utility model is briefly described below.
When according to axial plunger pump work of the present utility model, power source, such as motor (not shown) are activated so that
Input and rotate to axial plunger pump.
Under the drive of motor, the entering spindle 2 of axial plunger pump rotates relative to housing 1, in entering spindle and branch
Support bearing, swash plate and swash plate spring bearing, swash plate is limited under the collective effect of change, the swash plate 5 in middle oblique curved segment 22
Do not rotate, but do space sphere around coincidence point A and swing.And due in the first straight line section 21 of entering spindle 2
Balance ring and swash plate limit the effect of change and because four heart described above overlap, and the swing imbalance of swash plate is effectively supported
Disappear.
The sphere of swash plate 5 swings drivening rod and plunger 4 and moved back and forth in the cylinder holes 101 of cylinder body 10, to be pointed out
It is that due to the presence of enlarging 512, the bulb chamber and bulb and connecting rod of the swash plate during the sphere of swash plate 5 is swung can be avoided
Interference.
Further as shown in figure 4, when plunger is motionless, due to inhalation valve spring and the bias effect of discharge valve spring,
Sealing space is formed between cylinder holes and plunger front end and inlet valve.When plunger moves upwards, formed in the sealing space true
Sky, when the pressure differential for sucking the both sides of valve core 92 is more than the biasing force of inhalation valve spring 93, suction valve core 92 is overcome suction
The power for entering valve spring 93 moves right, and thus, opens suction passage, sucks working media, such as water.When plunger moves downward
When, the pressure increase in sealing space so that suction valve core 92 is quickly closed, and now, the pressure of the increase overcomes discharge
The biasing force of valve spring 94 and will discharge valve core 93 open, thus by cylinder holes medium discharge.And so on so that axially
Plunger pump sucks medium and discharged after the medium is pressurizeed.
In the utility model, by setting balance ring in the first straight line section of entering spindle, and by by swash plate
The coincidence of four hearts is configured to Deng component, the unbalanced moments in swash plate motion process can be offset so that according to the utility model
Axial plunger pump more smoothly work, reduce work noise and reduce the abrasion of equipment.And thereby eliminate existing skill
The needs of two groups of bearings are set in art in the first straight line section of entering spindle, the problem of overcoming the Planar Mechanisms of entering spindle.
In the utility model, by valve seat and pump housing retention gap, impact when valve element moves back and forth is reduced
Inertia so that flat valve reliable operation, Adaptability of medium are strong, work when noise and with small vibration.
Although the detailed description carried out above to preferred embodiment of the present utility model, in view of above description,
Those skilled in the art are contemplated that various modifications and variations.Therefore, the utility model should not be limited to above-mentioned specific real
Mode is applied, the scope of protection of the utility model is only limited by appended appended claims and their equivalents.
Claims (22)
1. a kind of axial plunger pump, the axial plunger pump includes housing, is installed in rotation in housing and including middle tiltedly curved
The entering spindle of section, the swash plate being installed in rotation in the oblique curved segment in the centre, one end pass through bulb hinged to the swash plate
The upper and other end is provided with multiple connecting rods of plunger and the cylinder for the cylinder holes being reciprocally inserted with plunger
Body, it is characterised in that the cylinder body is fixed relative to the housing, as the rotation of the entering spindle swash plate does space
Sphere is swung, wherein, intersection point, the sphere of the swash plate of the axis of the oblique curved segment of the main shaft of the entering spindle and the centre
The center of circle for the circle that the center of the bulb of oscillation center and the multiple connecting rod is formed is overlapped at coincidence point (A).
2. axial plunger pump as claimed in claim 1, it is characterised in that also limit change including swash plate, the swash plate limits change
On the one hand rotatably it is connected with the swash plate by connecting shaft, and on the other hand swash plate limit change passes through radial direction phase
The bearing pin of setting is connected so that swash plate limit change can be put around the bearing pin relative to the housing with the housing
It is dynamic.
3. axial plunger pump as claimed in claim 2, it is characterised in that the axis of the connecting shaft of the swash plate limit change and institute
The intersection point for stating the axis of bearing pin overlaps with the coincidence point (A).
4. axial plunger pump as claimed in claim 1, it is characterised in that the swash plate is formed with bulb chamber, each company
The bulb of bar is contained in the bulb intracavitary, to form ball pivot connection.
5. axial plunger pump as claimed in claim 4, it is characterised in that the opening of the bulb chamber is formed with enlarging.
6. axial plunger pump as claimed in claim 5, it is characterised in that the swash plate includes swash plate body and swash plate gland,
Formed with multiple recessed cavities in the swash plate body, and make in the swash plate gland formed with corresponding multiple Through-cavities
Obtain when the swash plate body and the swash plate gland coordinate, each recessed cavity and a corresponding Through-cavity shape
Into the bulb chamber.
7. axial plunger pump as claimed in claim 6, it is characterised in that the enlarging is formed the one of the Through-cavity
End.
8. axial plunger pump as claimed in claim 6, it is characterised in that accommodate cushion block, the pad in the bulb intracavitary
Block is fitted close with the bulb, to form ball pivot connection.
9. axial plunger pump as claimed in claim 8, it is characterised in that the cushion block is made of copper.
10. axial plunger pump as claimed in claim 1, it is characterised in that the entering spindle also includes first straight line section, institute
State first straight line section to be pivotally supported on the housing by bearing, and be additionally provided with the first straight line section flat
Weigh ring, and the balance ring is eccentric structure and rotated together with the entering spindle.
11. axial plunger pump as claimed in claim 10, it is characterised in that the balance ring includes axial component and radial part
Point, the axial component, which is non-rotatably mounted in the first straight line section, causes the balance ring and the entering spindle one
With rotation, the radial component is eccentrical shape.
12. axial plunger pump as claimed in claim 11, it is characterised in that the first straight line section of the entering spindle and described
Balance ring is pivotally supported on the housing by clutch shaft bearing.
13. axial plunger pump as claimed in claim 12, it is characterised in that the entering spindle also include with it is described first straight
Line segment second straight line section in alignment, the oblique curved segment in centre are arranged at the first straight line section and the second straight line section
Between.
14. axial plunger pump as claimed in claim 13, it is characterised in that the axis of the oblique curved segment in centre is relative to described
The axis of first straight line section and second straight line section tilts 15 to 40 degree.
15. axial plunger pump as claimed in claim 14, it is characterised in that the second straight line section is provided with the second axle
Hold, the entering spindle is pivotally supported on the housing by the second bearing.
16. axial plunger pump as claimed in claim 1, it is characterised in that also include valve seat including flat valve, the flat valve
With the suction valve core in valve seat and discharge valve core, the suction valve core and the discharge valve core are inclined respectively
Press to the valve seat.
17. axial plunger pump as claimed in claim 16, it is characterised in that the valve element is by corrosion resistant high strength light material
Material is made.
18. axial plunger pump as claimed in claim 17, it is characterised in that the high strength light material is titanium alloy.
19. axial plunger pump as claimed in claim 16, it is characterised in that the outer surface and the valve of each valve element
Formed with annular gap between the corresponding matching surface of seat.
20. axial plunger pump as claimed in claim 19, it is characterised in that the annular gap is not less than 0.5 millimeter.
21. axial plunger pump as claimed in claim 16, it is characterised in that the valve seat forms with being engaged between element
Two gaps.
22. axial plunger pump as claimed in claim 21, it is characterised in that second gap is at 0.3 to 0.4 millimeter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610226120.2A CN105756877A (en) | 2016-04-13 | 2016-04-13 | Axial plunger hydraulic pump with symmetric curved-skew main shaft structure |
| CN2016102261202 | 2016-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093295U true CN207093295U (en) | 2018-03-13 |
Family
ID=56333796
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610226120.2A Pending CN105756877A (en) | 2016-04-13 | 2016-04-13 | Axial plunger hydraulic pump with symmetric curved-skew main shaft structure |
| CN201710240375.9A Active CN107288836B (en) | 2016-04-13 | 2017-04-13 | Axial plunger pump |
| CN201720388086.9U Active CN207093295U (en) | 2016-04-13 | 2017-04-13 | Axial plunger pump |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610226120.2A Pending CN105756877A (en) | 2016-04-13 | 2016-04-13 | Axial plunger hydraulic pump with symmetric curved-skew main shaft structure |
| CN201710240375.9A Active CN107288836B (en) | 2016-04-13 | 2017-04-13 | Axial plunger pump |
Country Status (3)
| Country | Link |
|---|---|
| CN (3) | CN105756877A (en) |
| HK (1) | HK1244861A1 (en) |
| WO (1) | WO2017177936A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288836A (en) * | 2016-04-13 | 2017-10-24 | 武汉钜威天数字化机械制造有限公司 | Axial plunger pump |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989579B (en) * | 2017-12-27 | 2024-07-23 | 宁波合力机泵股份有限公司 | Power end of submersible well type multi-cylinder vertical plunger oil pump |
| CN108425819A (en) * | 2018-03-31 | 2018-08-21 | 何旺成 | Swash plate skid shoe type axial plunger Water Hydraulic Pump or motor |
| CN108561298B (en) * | 2018-06-05 | 2024-05-07 | 昆明理工大学 | High-pressure dual-cavity multipurpose water delivery mechanism |
| WO2020075779A1 (en) * | 2018-10-10 | 2020-04-16 | 国立大学法人九州工業大学 | Parallel link mechanism and link action device |
| CN109926801B (en) * | 2019-04-16 | 2024-04-09 | 四川坤成润科技有限公司 | Processing method of hollow plunger |
| CN111637030B (en) * | 2020-07-17 | 2024-08-06 | 西安中孚凯宏石油科技有限责任公司 | Skid-mounted high-pressure plunger pump structure |
| CN114562437B (en) * | 2020-11-27 | 2024-09-10 | 上海强田驱动技术有限公司 | Slide disc type axial plunger pump |
| CN114714198B (en) * | 2022-06-08 | 2022-08-12 | 常熟常春汽车零部件有限公司 | Polishing and cleaning equipment for burrs and impurities of automotive plastic interior trim parts |
| CN115095516A (en) * | 2022-07-06 | 2022-09-23 | 浙江千机智能科技有限公司 | Pump device and plunger pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2204230A5 (en) * | 1972-10-20 | 1974-05-17 | Dowell Schlumberger | |
| FR2454543A1 (en) * | 1979-04-19 | 1980-11-14 | Bronzavia Sa | MACHINE, SUCH AS A PUMP, OF WHICH AT LEAST CERTAIN MOBILE PARTS ARE IN CONTACT WITH SEA WATER |
| JPS5910790A (en) * | 1982-07-10 | 1984-01-20 | Sugino Mach:Kk | Axial plunger pump used in water |
| EP1797322A1 (en) * | 2004-10-01 | 2007-06-20 | Valeo Compressor Europe GmbH | A reciprocating piston machine, in particular a compressor for a vehicle air-conditioning unit |
| CN201218170Y (en) * | 2008-05-12 | 2009-04-08 | 华中科技大学 | Plunger flow-distribution axial plunger hydraulic pump |
| CN101832243A (en) * | 2010-04-30 | 2010-09-15 | 北京工业大学 | Axial water pressure plunger pump with easy maintenance |
| CN102374149B (en) * | 2010-08-09 | 2014-04-23 | 苏州鸿本机械制造有限公司 | Oil-free pump for high-pressure cleaning machine |
| CN201739111U (en) * | 2010-08-20 | 2011-02-09 | 华中科技大学 | Inclined disc connecting rod type axial water pressure plunger pump |
| CN201739163U (en) * | 2010-08-20 | 2011-02-09 | 华中科技大学 | Guiding slip ring type sloping cam plate limiting mechanism |
| DE102014104951A1 (en) * | 2014-04-08 | 2015-10-08 | Linde Hydraulics Gmbh & Co. Kg | Axial piston machine in bent axis design |
| CN105756877A (en) * | 2016-04-13 | 2016-07-13 | 武汉钜威天数字化机械制造有限公司 | Axial plunger hydraulic pump with symmetric curved-skew main shaft structure |
-
2016
- 2016-04-13 CN CN201610226120.2A patent/CN105756877A/en active Pending
-
2017
- 2017-04-13 WO PCT/CN2017/080380 patent/WO2017177936A1/en active Application Filing
- 2017-04-13 CN CN201710240375.9A patent/CN107288836B/en active Active
- 2017-04-13 CN CN201720388086.9U patent/CN207093295U/en active Active
-
2018
- 2018-03-28 HK HK18104233.9A patent/HK1244861A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288836A (en) * | 2016-04-13 | 2017-10-24 | 武汉钜威天数字化机械制造有限公司 | Axial plunger pump |
| CN107288836B (en) * | 2016-04-13 | 2020-03-17 | 武汉钜威天数字化机械制造有限公司 | Axial plunger pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107288836A (en) | 2017-10-24 |
| WO2017177936A1 (en) | 2017-10-19 |
| HK1244861A1 (en) | 2018-08-17 |
| CN107288836B (en) | 2020-03-17 |
| CN105756877A (en) | 2016-07-13 |
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