CN209569155U - Axial plunger pump or for motor piston shoes and plunger piston shoes subassembly - Google Patents
Axial plunger pump or for motor piston shoes and plunger piston shoes subassembly Download PDFInfo
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- CN209569155U CN209569155U CN201821960919.5U CN201821960919U CN209569155U CN 209569155 U CN209569155 U CN 209569155U CN 201821960919 U CN201821960919 U CN 201821960919U CN 209569155 U CN209569155 U CN 209569155U
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- drag reduction
- slot
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- 230000009467 reduction Effects 0.000 claims abstract description 83
- 239000000463 material Substances 0.000 claims abstract description 21
- 238000003860 storage Methods 0.000 claims abstract description 15
- 238000005299 abrasion Methods 0.000 claims abstract description 10
- 239000010687 lubricating oil Substances 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 40
- 125000004122 cyclic group Chemical group 0.000 claims 2
- 238000000034 method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 9
- 238000005461 lubrication Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 3
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- 230000001070 adhesive effect Effects 0.000 description 3
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- 239000000306 component Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The utility model discloses a slipper for an axial plunger pump or a motor and a plunger slipper assembly, which comprises a slipper body, wherein the slipper body is provided with a ball socket, the inner wall of the ball socket is provided with a resistance reducing groove and a collapsing groove, and the resistance reducing groove and the collapsing groove are respectively communicated with the ball socket; the resistance reducing groove is used for storing lubricating oil and reducing the friction of the relative motion of the plunger ball head and the sliding shoe; the collapsing groove is used for providing a storage position for locally deformed materials and reducing the contact surface of the plunger ball head and the inner wall of the sliding shoe, so that the spherical surface abrasion caused by the deformation of the materials of the contact surface of the sliding shoe is reduced; the ball socket comprises a lower hemispherical body and an upper cylindrical body, wherein the diameter of the hemispherical body is equal to that of the cylindrical body; the drag reduction groove is arranged on the hemispherical body part of the ball socket or the joint of the hemispherical body part and the cylindrical body part; the crush slot is disposed in the cylindrical portion of the socket.
Description
Technical field
The utility model belongs to technical field of engineering machinery, is related to a kind of piston shoes, in particular to a kind of axial plunger pump or
Motor piston shoes and plunger piston slippery boots assembly.
Background technique
Axial plunger pump/motor is dynamical element and executive component important in hydraulic system, is widely used in industry
It is that most wide one of Hydraulic Elements are used in Modern hydraulic element with walking machine field.The dynamics of plunger piston slippery boots assembly is special
Property directly determines the working performance of pump.When pump/motor when rotating at high speed, plunger piston slippery boots assembly be tightly attached on swash plate with
Cylinder body moves together, in pump/motor operation cycle, exists such as centrifugal force, piston shoes friction force and plunger and cylinder holes contact forces
All with the active force of time-varying, these power influence the reliability of pump/motor internal core components, become colleges and universities equal size and Orientations
And research institution's scientific research emphasis.
Plunger piston slippery boots assembly is to enable bulb in certain angle range by withholding packet ball technique for bulb packet into piston shoes
Interior flexible rotating adapts to the movement of swash plate and cylinder body.And in actual production process as existing for the structure design of plunger piston slippery boots
There is phenomena such as rotating not flexible, clamping stagnation, bulb abrasion, shaking off in problem, the plunger piston slippery boots assembly after leading to withhold packet ball.
In the prior art, the surface that piston shoes inner wall is contacted with bulb does not have groove, and plunger ball and piston shoes inner wall are spherical surfaces
Contact, withholds packet ball back-plunger bulb and is tightly buckled together with piston shoes.
The prior art has the following deficiencies: that (1) plunger ball and piston shoes can make in piston shoes after withholding packet ball technique
Wall material is deformed, and causes piston shoes inner wall uneven, plunger ball and piston shoes can be made to generate ball in relative motion in this way
Head abrasion；
(2) plunger ball and piston shoes are sphere-contacts, cause greasy property poor, in plunger ball and piston shoes relative motion
When, it has plunger ball and rotates not flexible, catching phenomenon, with cylinder body rotary motion, it may appear that plunger takes off boots phenomenon；
(3) plunger ball and piston shoes sphere-contact, relative clearance is small, and lubricating oil can not store, and causes ball head sliding shoe unlubricated friction
It wipes, can also reduce the service life of plunger ball and piston shoes.
Utility model content
Purpose: in order to overcome the deficiencies in the prior art, the utility model provides a kind of axial plunger pump or motor
With piston shoes and plunger piston slippery boots assembly.
Technical solution: in order to solve the above technical problems, the technical solution adopted by the utility model is:
A kind of axial plunger pump or motor piston shoes, which is characterized in that including piston shoes ontology,
It is provided with ball-and-socket on the piston shoes ontology, drag reduction slot and crumple groove, the drag reduction are offered on the ball-and-socket inner wall
Slot, crumple groove are connected with ball-and-socket respectively；
The drag reduction slot reduces the friction of plunger ball, piston shoes relative motion for storing lubricating oil；
The crumple groove provides storage location for the material to local deformation, reduces plunger ball and connect with piston shoes inner wall
Contacting surface generates sphere abrasion because piston shoes contact surface material deforms to reduce；
The ball-and-socket includes the hemisphere portion of lower part and the cylindrical body portion on top, and the diameter in the hemisphere portion is equal to cylinder
The diameter in body portion；The cylindrical body portion is connected with hemisphere portion；
The drag reduction slot is arranged in the hemisphere portion of the ball-and-socket or the company in the hemisphere portion and cylindrical body portion is arranged in
Meet place；
The cylindrical body portion of the ball-and-socket is arranged in the crumple groove.
Preferably, it is characterised in that: the drag reduction slot is annular recess.
It is furthermore preferred that the drag reduction slot is the annular recess along hemisphere portion circumference, the central axis of the drag reduction slot
Line is overlapped with the central axis of piston shoes ontology.Further, the diameter range of the drag reduction slot is the diameter in hemisphere portion
1.006~1.01 times, width range is 0.5~1mm.
Preferably, the crumple groove is annular recess.
It is furthermore preferred that the crumple groove is the annular recess along cylindrical body portion circumference；The central axis of the crumple groove
Line is overlapped with the central axis of piston shoes ontology.Further, the diameter range of the crumple groove is the diameter in hemisphere portion
1.003~1.006 times, width range is 0.6~1.2mm.
Preferably, the drag reduction slot, crumple groove are the groove of annular setting；The width of the crumple groove is greater than
The width of drag reduction slot, the diameter of the crumple groove are less than the diameter of drag reduction slot；
The junction in the hemisphere portion and cylindrical body portion is arranged in the drag reduction slot；And the center line of drag reduction slot crosses hemisphere
The centre of sphere in body portion, the crumple groove are disposed adjacent with drag reduction slot, and are located above drag reduction slot.
As a preferred embodiment, the drag reduction slot is the annular recess that inner side end is bevel edge, the bottom of the drag reduction slot
Diameter is held to be greater than top end diameter；The bottom diameter of the drag reduction slot is 1.0075~1.01 times of the diameter in hemisphere portion；And tiltedly
The angle k of side and horizontal plane is 90 ° of 30 °≤k <.
As another preferred embodiment, the crumple groove is the annular recess that inner side end is bevel edge, the crumple groove
Bottom diameter is greater than top end diameter；And the angle k of bevel edge and horizontal plane is 90 ° of 30 °≤k <.
Further, the piston shoes body bottom portion is provided with oil sump, and oil duct, oil sump are provided between the oil sump and ball-and-socket
It is connected with ball-and-socket by oil duct；The oil duct includes cone slot, oil-through-hole and oil storage tank；The cone slot is arranged above oil sump,
And it is connected with oil sump；The oil storage tank setting is connected below ball-and-socket, and with ball-and-socket；Described oil-through-hole one end and cone slot phase
Connection, the other end are connected with oil storage tank.
The utility model also provides a kind of plunger piston slippery boots assembly, which is characterized in that including plunger body and above-mentioned axial direction
Plunger pump or motor piston shoes, plunger body end are provided with plunger ball, and the plunger ball is matched with the ball-and-socket of piston shoes.
The utility model has the advantages that axial plunger pump provided by the utility model or motor piston shoes and plunger piston slippery boots assembly, have with
Lower advantage: (1) presence of crumple groove can reduce the contact area for withholding plunger ball and piston shoes inner wall in packet ball technical process；From
And reduce the friction of plunger ball and piston shoes, it improves service life；(2) crumple groove, which can also reduce, withholds in packet ball technical process
The material of bulb and piston shoes inner wall contact surface deforms, to reduce because rubbing caused by the rough material of contact surface；(3) it bursts
Contracting slot can effectively reduce wall friction in plunger ball and piston shoes, improve the service life of plunger piston slippery boots assembly；(4) drag reduction slot is in column
When plug bulb does spherical surface secondary motion in ball-and-socket, increase in bulb, top lubrication, reduces dry friction, effectively improve plunger ball
Rotation flexibility, prevent plunger ball occur catching phenomenon；(5) plunger piston slippery boots assembly is to be tightly attached on swash plate to do high-speed motion
, the presence of crumple groove, drag reduction slot reduces the quality of piston shoes, to reduce the centrifugal force in motion process, reduces column
The probability for filling in piston shoes flying disc, improves the robust motion of plunger piston slippery boots assembly；(6) crumple groove, drag reduction slot composite structure, can subtract
The friction of small plunger bulb contact surface and the material deformation for withholding the generation of packet ball technique, increase bulb middle and upper part lubrication, improve column
It fills in slippery boots assembly and rotates flexibility；(7) subtract rent slot simultaneously, crumple groove can store and wear the broken of generation between plunger ball and piston shoes
Bits prevent bulb and ball-and-socket from generating adhesive wear；(8) the processing is simple for drag reduction slot, crumple groove, it is easy to accomplish.
Detailed description of the invention
Fig. 1 is the piston shoes structure chart of an embodiment；
Fig. 2 is the piston shoes structure chart of another embodiment；
Fig. 3 is the partial enlarged view of Fig. 2；
Fig. 4 is the piston shoes structure chart of another embodiment；
Fig. 5 is the piston shoes structure chart of another embodiment；
Fig. 6 is the plunger piston slippery boots assembly view of embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each shown in attached drawing
The size of a part is not to draw according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant
Art, method and apparatus may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as awarding
Weigh part of specification.In shown here and discussion all examples, any occurrence should be construed as merely example
Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar
Label and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with
In attached drawing afterwards do not need that it is further discussed.
Withhold packet ball --- it is a kind of assembly technology, piston shoes groove, which encases plunger ball, to be allowed to slip, and allows plunger
Bulb does the rotation of certain angle in piston shoes groove.
Crumple groove 7 --- the groove of piston shoes inner wall and bulb contact site can reduce the material during withholding packet ball and become
Shape.
Drag reduction slot 6 --- the groove of piston shoes inner wall and bulb contact site reduces plunger, cunning for storing lubricating oil
The friction of boots relative motion.
In some embodiments, as shown in Figure 1, a kind of axial plunger pump/motor piston shoes, including piston shoes ontology 1,
It is provided with ball-and-socket 8 on the piston shoes ontology 1, offers drag reduction slot 6 and crumple groove 7 on 8 inner wall of ball-and-socket, it is described
Drag reduction slot 6, crumple groove 7 are connected with ball-and-socket 8 respectively；
The drag reduction slot 6 reduces the friction of plunger ball, piston shoes relative motion for storing lubricating oil；
The crumple groove 7 provides storage location for the material to local deformation, reduces plunger ball and connect with piston shoes inner wall
Contacting surface generates sphere abrasion because piston shoes contact surface material deforms to reduce；
The ball-and-socket 8 includes the hemisphere portion 81 of lower part and the cylindrical body portion 82 on top, the diameter in the hemisphere portion 81
Equal to the diameter in cylindrical body portion 82；The cylindrical body portion 82 is connected at the diameter in the hemisphere portion 81 with hemisphere portion 81
It is logical；
The drag reduction slot 6 is arranged in the hemisphere portion 81 of the ball-and-socket 8 or is arranged in the hemisphere portion 81 and cylindrical body
The junction in portion 82；
The cylindrical body portion 82 of the ball-and-socket 8 is arranged in the crumple groove 7.
Further, the drag reduction slot 6, crumple groove 7 are the groove structure that 8 inner surface of ball-and-socket opens up.Groove structure can be with
It can be the groove of annular recess, square groove, circular groove or other shapes to be continuous or discontinuous.
In some embodiments, as shown in Figure 1 and Figure 2, it is preferred that the drag reduction slot 6, crumple groove 7 are annular recess.
More preferably, in some embodiments, as shown in figure 1, figure 2, figure 3, figure 4 and figure 5, the drag reduction slot 6 is along half
The central axis of the annular recess of 81 circumference of spherical part, the drag reduction slot 6 is overlapped with the central axis of piston shoes ontology.It is described
Crumple groove 7 is the annular recess along 82 circumference of cylindrical body portion；The central axis of the crumple groove 7 and the center of piston shoes ontology
Axis is overlapped.
In the present embodiment, the crumple groove 7 is arranged in parallel with the drag reduction slot 6, crumple groove 7 and be arranged on drag reduction slot 6
Side.
Further, the diameter range of the drag reduction slot 6 is 1.006~1.01 times of the diameter in hemisphere portion 81, width
Range is 0.5~1mm；The drag reduction slot 6 is the 0 of the diameter in hemisphere portion 81 at a distance from the diameter center face in hemisphere portion 81
~0.2 times.
Further, the diameter range of the crumple groove 7 is 1.003~1.006 times of the diameter in hemisphere portion 81, width
Range is 0.6~1.2mm；The crumple groove 7 is the diameter in hemisphere portion 81 at a distance from the diameter center face in hemisphere portion 81
0.001~0.2 times.
In some embodiments, as shown in Figure 1,1 bottom of piston shoes ontology is provided with oil sump 2, the oil sump 2 and ball-and-socket
Oil duct c is provided between 8, oil sump 2 is connected with ball-and-socket 8 by oil duct c；The oil duct c includes cone slot 3, oil-through-hole 4 and oil storage
Slot 5；The setting of cone slot 3 is connected above oil sump 2, and with oil sump 2；The oil storage tank 5 is arranged below ball-and-socket 8, and with
Ball-and-socket 8 is connected；Described 4 one end of oil-through-hole is connected with cone slot 3, and the other end is connected with oil storage tank 5.
In some embodiments, as shown in Figures 2 to 5, the drag reduction slot 6, crumple groove 7 are the recessed of horizontal annular setting
Slot；The width of the crumple groove 7 is greater than the width of drag reduction slot 6；The diameter of the crumple groove 7 is less than the diameter of drag reduction slot 6；It is described
The junction in the hemisphere portion 81 and cylindrical body portion 82 is arranged in drag reduction slot 6；And the more than half spherical parts 81 of center line of drag reduction slot 6
Centre of sphere s, the crumple groove 7 is disposed adjacent with drag reduction slot 6, and is located at 6 top of drag reduction slot.
In some embodiments, as shown in figure 5, the drag reduction slot 6 is the identical annular recess of inner side end depth；Crumple
Slot 7 is also the identical annular recess of inner side end depth.Unlike embodiment illustrated in fig. 1, the drag reduction slot 6, crumple groove 7
It is disposed adjacent.
In some embodiments, as shown in Figure 2 and Figure 3, the drag reduction slot 6 is the annular recess that inner side end is bevel edge, institute
The bottom diameter for stating drag reduction slot 6 is greater than top end diameter；And the angle k of bevel edge and horizontal plane is 90 ° of 30 °≤k <.Crumple groove 7 is
The identical annular recess of inner side end depth.
In some embodiments, as shown in figure 4, the drag reduction slot 6 is the identical annular recess of inner side end depth；It is described
Crumple groove 7 is the annular recess that inner side end is bevel edge, and the bottom diameter of the crumple groove 7 is greater than top end diameter；And bevel edge with
The angle k of horizontal plane is 90 ° of 30 °≤k <.
In addition, assembling initial stage in plunger and piston shoes, running in stage has subtle part clast and generates, crumple groove, drag reduction slot
Combined presence can accommodate clast, avoid the adhesive wear inside bulb or piston shoes.
L-G simulation test is carried out to the piston shoes in above-described embodiment, verifying conclusion is as follows:
(1) crumple groove, drag reduction slot combine the lubrication that can increase plunger ball and piston shoes, and reliability test 300h does not have found
Obvious abrasion mark；
(2) the plunger pump/motor of this piston shoes structure, volumetric efficiency >=91.15% are applied, mechanical efficiency >=87.24% meets
Engineering machinery requirement；
(3) the piston shoes plunger assembly for applying this structure slips the more single slot structure of power and increases by 18% or so.
In some embodiments, as shown in fig. 6, a kind of plunger piston slippery boots assembly, including piston shoes ontology 1 and plunger body 9, column
9 end of plug body is provided with plunger ball 10, and ball-and-socket 8, the plunger ball 10 and piston shoes are provided on the piston shoes ontology 1
Ball-and-socket 8 matches, and offers drag reduction slot 6 and crumple groove 7 on 8 inner wall of ball-and-socket.
As shown in fig. 6, plunger ball 10 is put in the ball-and-socket 8 of piston shoes ontology 1, after being withheld packet ball technique, ball-and-socket 8 is tightly
Plunger ball 10 is embraced, plunger ball 10 is made to do spherical surface secondary motion in ball-and-socket 8, and due to piston shoes top during withholding packet ball
It is squeezed to the crumple of ball-and-socket center, generates local material deformation, the presence of crumple groove 7 at this time is deposited to the material offer of local deformation
Storage space is set, and bulb and piston shoes inner wall contact surface are reduced, and generates sphere abrasion because piston shoes inner-wall material deforms to reduce.
When plunger ball 10 does spherical surface secondary motion in ball-and-socket 8, piston shoes bottom surface is bonded with swash plate, is had between oil film between the two
Gap.With in cylinder body rotational movement process, plunger can constantly oil suction, pressure oil realize the fuel feeding of pump, plunger cavity d in the process
Oil liquid can be entered in piston shoes ball-and-socket 8 through the aperture h of plunger ball 10, the reciprocal of plunger ball 10, rotary motion can make oil
Liquid a part is stored in oil storage tank 5, and the oil liquid of another part drives into 8 inner wall drag reduction slot 6 of ball-and-socket, what drag reduction slot 6 stored
Oil liquid mainly plays lubricating action, reduces the dry friction of plunger ball middle and upper part.If no 6 plunger ball of drag reduction slot and piston shoes withhold packet ball
After can generate dry friction, generate clamping stagnation, keep bulb rotation not flexible.
Crumple groove, drag reduction slot reduce piston shoes quality simultaneously, the centrifugal force generated when reducing plunger piston slippery boots high-speed motion,
Improve the robust motion of rotor assembly.
As shown in Figures 1 to 5, a kind of piston shoes, ball-and-socket inner wall is provided with drag reduction slot and crumple groove inside piston shoes, can effectively subtract
The material deformation of small plunger bulb and piston shoes during withholding packet ball, increases plunger ball and piston shoes lubrication improves bulb rotation
Flexibility ratio reduces the dry friction of bulb and piston shoes, improves the service life of plunger piston slippery boots assembly；Crumple groove, drag reduction slot reduce simultaneously
Piston shoes quality, the centrifugal force generated when reducing plunger piston slippery boots high-speed motion improve the robust motion of rotor assembly.Piston shoes
Inner wall includes crumple groove and drag reduction slot, and crumple groove reduces bulb and piston shoes inside contact surface for withholding in packet ball assembling process
Product reduces the deformation of piston shoes contact surface material, adapts to the deformation that piston shoes surface is generated when withholding packet ball, reduces bulb abrasion；Subtract
Resistance slot can be reduced clamping stagnation, abrasion, be improved plunger when doing spheric motion for storing a small amount of hydraulic oil, bulb with effectively lubricating
The reliability of slippery boots assembly.
The plunger pump/motor piston shoes of the utility model, open up crumple groove and drag reduction slot on the ball-and-socket inner wall of piston shoes, can
Bring it is following the utility model has the advantages that
(1) presence of crumple groove 7 can reduce the contact area for withholding plunger ball and piston shoes inner wall in packet ball technical process；
To reduce the friction of plunger ball and piston shoes, improve service life；
(2) crumple groove 7, which can also reduce, withholds the material of bulb and piston shoes inner wall contact surface deformation in packet ball technical process,
To reduce because rubbing caused by the rough material of contact surface；
(3) crumple groove 7 can effectively reduce wall friction in plunger ball and piston shoes, and that improves plunger piston slippery boots assembly uses the longevity
Life；
(4) drag reduction slot 6 increases in bulb, top lubrication, reduces dry when plunger ball does spherical surface secondary motion in ball-and-socket
Friction, effectively improves the rotation flexibility of plunger ball, prevents plunger ball from catching phenomenon occurs；
(5) plunger piston slippery boots assembly, which is tightly attached on swash plate, does high-speed motion, and the presence of crumple groove 7, drag reduction slot 6 reduces
The quality of piston shoes 1 reduces the probability of plunger piston slippery boots flying disc, improves plunger to reduce the centrifugal force in motion process
The robust motion of slippery boots assembly；
(6) crumple groove 7,6 composite structure of drag reduction slot group can reduce the friction of plunger ball contact surface and withhold packet ball technique
The material of generation deforms, and increases bulb middle and upper part lubrication, improves plunger piston slippery boots assembly and rotates flexibility；
(7) crumple groove 7,6 composite structure of drag reduction slot group, can store the clast that generation is worn between plunger ball and piston shoes, prevent
Only bulb and ball-and-socket generate adhesive wear.
(8) the processing is simple for drag reduction slot, crumple groove, it is easy to accomplish.
The utility model can be applied to crumple groove, drag reduction slot composite structure piston shoes or have similar bulb, ball-and-socket through buckleing
The component of briquetting ball process Installation.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is only the utility model and simplified description for ease of description, rather than indicates or imply meaning
Device or element must have a particular orientation, construct and operate for specific orientation, thus should not be understood as practical new to this
The limitation of type protection content.
The above is only the preferred embodiment of the utility model, it should be pointed out that: for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of axial plunger pump or motor piston shoes, which is characterized in that including piston shoes ontology,
It is provided with ball-and-socket on the piston shoes ontology, drag reduction slot and crumple groove are offered on the ball-and-socket inner wall, the drag reduction slot is burst
Contracting slot is connected with ball-and-socket respectively；
The drag reduction slot reduces the friction of plunger ball, piston shoes relative motion for storing lubricating oil；
The crumple groove provides storage location for the material to local deformation, reduces plunger ball and piston shoes inner wall contact surface,
Sphere abrasion is generated because piston shoes contact surface material deforms to reduce；
The ball-and-socket includes the hemisphere portion of lower part and the cylindrical body portion on top, and the diameter in the hemisphere portion is equal to cylindrical body portion
Diameter；The cylindrical body portion is connected with hemisphere portion；
The drag reduction slot is arranged in the hemisphere portion of the ball-and-socket or the junction in the hemisphere portion and cylindrical body portion is arranged in；
The cylindrical body portion of the ball-and-socket is arranged in the crumple groove.
2. axial plunger pump according to claim 1 or motor piston shoes, it is characterised in that: the drag reduction slot is cyclic annular recessed
Slot.
3. axial plunger pump according to claim 2 or motor piston shoes, it is characterised in that: the drag reduction slot is along hemisphere
The central axis of the annular recess of body portion circumference, the drag reduction slot is overlapped with the central axis of piston shoes ontology；
And/or the diameter range of the drag reduction slot is 1.006~1.01 times of diameter of hemisphere portion, width range is 0.5~
1mm。
4. axial plunger pump according to claim 1 or motor piston shoes, it is characterised in that: the crumple groove is cyclic annular recessed
Slot.
5. axial plunger pump according to claim 4 or motor piston shoes, it is characterised in that: the crumple groove is along cylinder
The annular recess of body portion circumference；The central axis of the crumple groove is overlapped with the central axis of piston shoes ontology；
And/or the diameter range of the crumple groove is 1.003~1.006 times of the diameter in hemisphere portion, width range 0.6
~1.2mm.
6. axial plunger pump according to claim 1 or motor piston shoes, it is characterised in that: the drag reduction slot, crumple groove
It is the groove of annular setting；The width of the crumple groove is greater than the width of drag reduction slot, and the diameter of the crumple groove is less than drag reduction
The diameter of slot；
The junction in the hemisphere portion and cylindrical body portion is arranged in the drag reduction slot；And the more than half spherical parts of center line of drag reduction slot
The centre of sphere, the crumple groove is disposed adjacent with drag reduction slot, and is located above drag reduction slot.
7. axial plunger pump according to claim 6 or motor piston shoes, it is characterised in that: the drag reduction slot is inner end
Face is the annular recess of bevel edge, and the bottom diameter of the drag reduction slot is greater than top end diameter；The bottom diameter of the drag reduction slot is half
1.0075~1.01 times of the diameter of spherical part；And the angle k of bevel edge and horizontal plane is 90 ° of 30 °≤k <.
8. axial plunger pump according to claim 6 or motor piston shoes, it is characterised in that: the crumple groove is inner end
Face is the annular recess of bevel edge, and the bottom diameter of the crumple groove is greater than top end diameter；And the angle k of bevel edge and horizontal plane is
90 ° of 30 °≤k <.
9. axial plunger pump according to claim 1 or motor piston shoes, it is characterised in that: the piston shoes body bottom portion is set
It is equipped with oil sump, oil duct is provided between the oil sump and ball-and-socket, oil sump is connected with ball-and-socket by oil duct；The oil duct includes cone
Slot, oil-through-hole and oil storage tank；The cone slot setting is connected above oil sump, and with oil sump；The oil storage tank is arranged in ball-and-socket
Lower section, and be connected with ball-and-socket；Described oil-through-hole one end is connected with cone slot, and the other end is connected with oil storage tank.
10. a kind of plunger piston slippery boots assembly, which is characterized in that including plunger body and the described in any item axial directions of claim 1-9
Plunger pump or motor piston shoes, plunger body end are provided with plunger ball, and the plunger ball is matched with the ball-and-socket of piston shoes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821960919.5U CN209569155U (en) | 2018-11-27 | 2018-11-27 | Axial plunger pump or for motor piston shoes and plunger piston shoes subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821960919.5U CN209569155U (en) | 2018-11-27 | 2018-11-27 | Axial plunger pump or for motor piston shoes and plunger piston shoes subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209569155U true CN209569155U (en) | 2019-11-01 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821960919.5U Active CN209569155U (en) | 2018-11-27 | 2018-11-27 | Axial plunger pump or for motor piston shoes and plunger piston shoes subassembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441797A (en) * | 2018-11-27 | 2019-03-08 | 江苏徐工工程机械研究院有限公司 | Sliding shoe for axial plunger pump or motor |
| CN117145594A (en) * | 2023-11-01 | 2023-12-01 | 中国航发沈阳发动机研究所 | Force transmission structure of inner and outer casing of turbine |
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2018
- 2018-11-27 CN CN201821960919.5U patent/CN209569155U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441797A (en) * | 2018-11-27 | 2019-03-08 | 江苏徐工工程机械研究院有限公司 | Sliding shoe for axial plunger pump or motor |
| CN117145594A (en) * | 2023-11-01 | 2023-12-01 | 中国航发沈阳发动机研究所 | Force transmission structure of inner and outer casing of turbine |
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