CN208416832U - A kind of plane hydrostatic driving structure and bent axis type axial piston pump or motor comprising the structure - Google Patents
A kind of plane hydrostatic driving structure and bent axis type axial piston pump or motor comprising the structure Download PDFInfo
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- CN208416832U CN208416832U CN201820763685.9U CN201820763685U CN208416832U CN 208416832 U CN208416832 U CN 208416832U CN 201820763685 U CN201820763685 U CN 201820763685U CN 208416832 U CN208416832 U CN 208416832U
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- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 81
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 230000008878 coupling Effects 0.000 claims abstract description 28
- 238000010168 coupling process Methods 0.000 claims abstract description 28
- 238000005859 coupling reaction Methods 0.000 claims abstract description 28
- 230000003068 static effect Effects 0.000 claims abstract description 15
- 239000004519 grease Substances 0.000 claims description 89
- 238000007789 sealing Methods 0.000 claims description 27
- 238000000926 separation method Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 2
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 87
- 238000010586 diagram Methods 0.000 description 9
- 238000003825 pressing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
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- 238000004220 aggregation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
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- 239000012530 fluid Substances 0.000 description 1
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- 238000005461 lubrication Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
Bent axis type axial piston pump or motor the utility model discloses a kind of plane hydrostatic driving structure and comprising the structure, including driving spindle and drive disk, the drive disk connect the hydrostatic support plane being provided on the end face of side with driving spindle axis perpendicular with driving spindle, the liner plate for supporting drive disk is folded between the hydrostatic support plane and shell, the oil-through-hole of plunger the bearing ball-and-socket and hydrostatic support plane on connection drive disk is provided on the drive disk, the oil-through-hole introduces oil liquid between hydrostatic support plane and liner plate end face, the static pressure oil film for making the hydrostatic support plane and liner plate end face form clearance fit supports, the axial thrust load of hydraulic coupling is set to be transferred to shell via plane hydrostatic driving structure.The axial thrust load of plunger hydraulic power can be transferred on the shell of pump or motor by the utility model, significantly reduce the axial load of bearing arrangement, reduce the technical requirements of bearing, improve the functional reliability and working life of bent axis type axial piston pump or motor.
Description
Technical field
The utility model belongs to hydraulic drive and control technology field, in particular to a kind of plane hydrostatic driving structure and packet
Bent axis type axial piston pump or motor containing the structure.
Background technique
Axial plunger pump and motor are in Modern hydraulic transmission using most wide one of Hydraulic Elements, wherein hingeless formula inclined shaft
Pump or motor and crawler shoe cam-type axial piston pump or motor are most widely used at present, are also most important two classes axial plunger
Pump.Both pumps or motor are also competing at present, are each continuously improving and are developing.With crawler shoe cam-type axial piston pump
Or motor is compared, inclined shaft pump or motor have the advantages that 1, axial rake is larger, and inclination maximum can achieve 40 °, therefore increase
Discharge capacity, improves power-mass ratio；2, the lateral force of plunger is more much smaller than the lateral force of plunger in cam-type axial piston pump,
Therefore the eccentric wear as caused by lateral force and leakage loss are smaller；3, allow revolving speed with higher, since the quality of revolving part is smaller and
Plunger lateral force is smaller, and angle type axial piston pump allows higher revolving speed；4, suction capacity is preferable, due to can be compared at flexural pivot
It anchors well, is conducive to the backhaul of plunger, angle type axial piston pump permission is transported under self-priming operating condition or lower inlet pressure
Turn.But inclined shaft pump or motor also have its disadvantage: 1, variable is more difficult, becomes due to being realized using tilting cylinder block or shell type
Amount, therefore variable is more difficult, the variable response time is also relatively slow；2, service life is shorter, is mainly driven main shaft supporting axis
The service life held influences, generally 2000~5000 hour service life, much smaller than crawler shoe cam-type axial piston pump or motor
Service life (generally 5000~10000 hours).
In inclined shaft pump or motor, due to hydraulic oil effect and the axial and radial force that generates all is led by bearing driving
The bearing of axis is born, therefore load suffered by driving spindle bearing support is generally all very big.It was verified that inclined shaft pump or motor are most
It is crucial weak link first is that the bearing support of driving spindle, working life directly affect the work longevity that inclined shaft pumps itself
Life.As the operating pressure of inclined shaft pump or motor is continuously improved, bearing arrangement continuously improves raising.As shown in Figure 1, existing
In some inclined shaft pumps or motor configuration, a pair of of angular contact ball bearing and a radial ball bearing or cylindrical roller axis are generallyd use
It holds, one pair of them angular contact ball bearing bears whole axial thrust load caused by plunger hydraulic power, the radial direction point of plunger hydraulic power
Power is born jointly by three bearings.Certainly, a pair of of tapered roller bearing can also be used and replace angular contact ball bearing, with a circle
The characteristics of original single radial ball bearing of taper roller bearing replacement, this supporting structure is that tapered roller bearing compares centripetal thrust force
The dynamic load rating of ball bearing is high, improves main shaft bearing capacity.But the limited transmission ratio centripetal thrust force ball of tapered roller bearing
Bearing is lower, therefore the revolving speed pumped will be subject to certain restrictions.In addition ball bearing is also compared at the tilt tolerant angle of tapered roller bearing
It is much smaller.
No matter radial thrust bearing or tapered roller bearing are used, there are following technological difficulties: 1, bearing is due to holding
It is acted on by biggish axial and radial force, the axial thrust load of especially hydraulic coupling is affected to bearing, and therefore, bearing is frequent
The problems such as will appear surface peeling, abrasion, ablation, creep, lead to bearing failure, bearing life is shorter；2, due to using heavy duty
High thrust bearing, technical bearing requirements are higher, and the bearing that China voluntarily produces at present is still difficult to meet the requirements, and price is also very high；
3, requirement on machining accuracy is high, the machining accuracy comprising bearing, the axis with the main shaft diameter of axle of bearing fit and reinforced seal cooperation
Diameter, bearing assembly precision etc. are more demanding；4, guarantee that pairs of radial thrust bearing or tapered roller bearing uniformly bear axial direction
The difficulty of load is larger；5, due to bear biggish axial and radial force, shaft diameter is larger, matched bearing radial ruler
It is very little also larger, therefore the size of pump or motor is bigger than normal, it is on the high side.
Currently, the technical solution of most of raising axial plunger pumps or motor service life all concentrates on how improving bearing
Configuration aspects, but improvement difficulty is larger in terms of bearing arrangement, it is more difficult to there is breakthrough, also limits inclined shaft pump or motor operations pressure
With further increasing for speed.
Utility model content
The goal of the invention of the utility model is: in view of the above problems, providing one kind can reduce to bearing skill
Art requirement, improves functional reliability, extends the plane hydrostatic driving structure of working life and the inclined plunger comprising the structure
Pump or motor.
The technical solution implementation of the utility model technology: a kind of plane hydrostatic driving structure, including be arranged in shell
The internal and driving spindle supported via bearing and the drive disk being connect with the driving spindle, it is characterised in that: the drive
Moving plate connect the hydrostatic support plane being provided on the end face of side with driving spindle axis perpendicular, the static pressure with driving spindle
It is folded with the liner plate for supporting the drive disk between supporting plane and the shell, connection is provided on the drive disk
Oil liquid is introduced hydrostatic support plane by the oil-through-hole of plunger bearing ball-and-socket and hydrostatic support plane on drive disk, the oil-through-hole
Between liner plate end face, the static pressure oil film for making the hydrostatic support plane and liner plate end face form clearance fit is supported, and is made hydraulic
The axial thrust load of power is transferred to shell via plane hydrostatic driving structure.
Plane hydrostatic driving structure described in the utility model, the hydrostatic support plane of the drive disk are equipped with multiple
Grease chamber, the multiple grease chamber are distributed in hydrostatic support plane by center compartment of terrain of driving spindle axle center, each grease chamber bottom
It is provided with oil-through-hole between corresponding plunger bearing ball-and-socket, oil liquid is introduced the grease chamber by the oil-through-hole, makes the static pressure
The static pressure oil film that supporting plane and liner plate end face form clearance fit supports.
Plane hydrostatic driving structure described in the utility model, the hydrostatic support plane are on drive disk, along described
The boss face that driving spindle axle center extends to driving spindle side, the boss face are equipped with multiple grease chambers, the multiple grease chamber
It is distributed in the boss face by center compartment of terrain of driving spindle axle center, oil liquid is introduced the grease chamber by the oil-through-hole, is made
The static pressure oil film that the boss face and liner plate end face form clearance fit supports.
Plane hydrostatic driving structure described in the utility model, is provided in the boss face for sealing oil liquid
Sealing, the sealing include the interior sealing and outer seal portion that the radially inner and outer side of grease chamber is arranged in, and are arranged adjacent
Separation seal portion between grease chamber.
Plane hydrostatic driving structure described in the utility model is provided with multiple in the boss face periphery of the drive disk
Aiding support face is provided with drain pan between the aiding support face, sets between the aiding support face and the outer seal portion
It is equipped with the drain pan of annular, is interconnected between the drain pan.
It is arranged to damp on plane hydrostatic driving structure described in the utility model, the oil-through-hole or plunger centre bore
Hole is provided with damper, and the damping hole or damper can make the oil pressure of grease chamber change with external load and change, to be formed
Hydrostatic support with oil film pressure feedback.
Plane hydrostatic driving structure described in the utility model is provided at least one perforation institute on the drive disk
The oilhole that unloads at drive disk both ends is stated, relatively closed first cavity in drive disk two sides and the second cavity are connected to by the oilhole that unloads,
And for leading to the oil liquid being enclosed in the first cavity by drive disk barrier in the second cavity of cylinder body side, to guarantee
Reasonable oil pressure is in first cavity.
Plane hydrostatic driving structure described in the utility model, the liner plate are arranged on the end face of drive disk side
There is at least one high-pressure oil chamber, the high-pressure oil chamber is intermittently connected to via oil-through-hole with the plunger hole of corresponding high pressure oil side,
Oil liquid is introduced high-pressure oil chamber by the oil-through-hole；Alternatively, the liner plate is provided at least one on the end face of drive disk side
A high-pressure oil chamber and low pressure grease chamber, the high-pressure oil chamber and low pressure grease chamber are respectively via oil-through-hole and corresponding high pressure oil side and low
The plunger hole of pressure oil side is intermittently connected to, and oil liquid is introduced high-pressure oil chamber and low pressure grease chamber by the oil-through-hole respectively.
Plane hydrostatic driving structure described in the utility model, the high-pressure oil chamber and/or low pressure grease chamber are radially
Section is in kidney-shaped shape, the high-pressure oil chamber and/or low pressure grease chamber by the plane through driving spindle axle center and central axis axle center point
Two sides are cut into, the high-pressure oil chamber and/or low pressure grease chamber are symmetrically or non-symmetrically distributed relative to plane, in the high-pressure oil chamber
And/or the interior periphery of low pressure grease chamber is provided with sealing, the sealing includes to be arranged in the liner plate of the radially inner and outer side of grease chamber
Sealing and liner plate outer seal portion, and the liner plate separation seal portion being arranged between high-pressure oil chamber and/or low pressure grease chamber.
A kind of includes the bent axis type axial piston pump or motor of above-mentioned plane hydrostatic driving structure, including shell, plunger, flow
Disk, bearing, cylinder body and central axis, the driving spindle axle center and the central axis axle center at an angle, the driving spindle
One end is arranged in the enclosure interior and is supported on the shell via bearing, and the driving spindle can be revolved around Pivot Point Center
Turn, the driving spindle and drive disk are coaxially connected, the cylinder body be pivotally supported via center and the mode that is abutted with valve plate around
Pivot Point Center rotation, the drive disk is towards being provided with multiple plungers bearing ball-and-sockets and a central axis on the end face of cylinder body side
Support ball-and-socket, plunger bearing ball-and-socket and center are pivotally supported ball-and-socket respectively with plunger ball and central axis bulb with can be opposite
The state sliding connection that driving spindle axle center is fascinated, it is characterised in that: the plane hydrostatic driving structure makes from plunger
The axial thrust load of the hydraulic coupling of side supports by the drive disk and is transferred to the shell of plunger pump or motor.
Bent axis type axial piston pump or motor described in the utility model, the driving spindle and drive disk are that separate type is independent
Structure is provided with connecting key portion on the driving spindle outer peripheral surface close to the drive disk side, is provided on the drive disk
With the matched keyway in connecting key portion of the driving spindle, the driving spindle and drive disk are connected by key realization transmission.
Bent axis type axial piston pump or motor described in the utility model, the shell are three-body type absolute construction, the shell
Body includes middle shell for accommodating the support housing of driving spindle and bearing, for accommodating cylinder body and for shell one end in closing
End cap, the middle shell both ends are bolted with support housing and end cap respectively, and the drive disk will come from plunger one
The hydraulic coupling at end is transferred on the support housing of plunger pump or motor by drive disk.
Based on the above-mentioned technical proposal, the beneficial effects of the utility model are:
1, the axial thrust load of hydraulic coupling is transferred to the shell of pump or motor by the plane hydrostatic driving structure of the utility model
On, the axial load of bearing arrangement is significantly reduced, the working condition of bearing is improved, improves bent axis type axial piston pump or motor
Functional reliability and working life.
2, the plane hydrostatic driving structure of the utility model assumes responsibility for the axial thrust load of most hydraulic couplings, so that driving
The diameter of dynamic main shaft can be set smaller, and matched bearing radial dimension is also smaller, therefore, reduces clino-axis type column
The volume and weight of plug pump or motor, improves the power per unit mass ratio of pump or motor.
3, since bearing is not subject to the axial thrust load of hydraulic coupling, it is solely subjected to the radial component of hydraulic coupling, therefore, can not had to
Concatenated pairs of radial thrust bearing, common bearing are just able to satisfy requirement, greatly reduce the technical requirements of bearing arrangement, then
In addition bearing size is smaller, therefore reduce the price of bent axis type axial piston pump or motor.
4, due to using plane hydrostatic driving structure, the axial thrust load of hydraulic coupling is by the hydraulic coupling of hydrostatic support driving structure
It offsets, and power is transferred to shell, therefore can be further improved the operating pressure and work turn of bent axis type axial piston pump or motor
Speed.
5, the plane hydrostatic driving structure of the utility model, bearing are solely subjected to radial component, and the abrasion of bearing reduces, in addition
Bearing radial dimension is smaller, and bent axis type axial piston pump or motor may make to reduce its mechanical noise because parts of bearings improves.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in the prior art with concatenated pairs of radial thrust bearing inclined shaft plunger pump or motor.
Fig. 2 is a kind of embodiment knot of the bent axis type axial piston pump with plane hydrostatic driving structure or motor in the utility model
Structure schematic diagram.
Fig. 3 is a kind of embodiment schematic diagram of plane hydrostatic driving structure in the utility model.
Fig. 4 is a kind of embodiment schematic diagram of drive disk in the utility model.
Fig. 5 is another embodiment schematic diagram of drive disk in the utility model.
Fig. 6 is a kind of embodiment schematic diagram of the drive disk with aiding support face in the utility model.
Fig. 7 is A-A sectional view in Fig. 4 and Fig. 5.
Fig. 8 is another embodiment schematic diagram of plane hydrostatic driving structure in the utility model.
Fig. 9 is the structural schematic diagram in the utility model from drive disk unilateral observation liner plate.
Figure 10 is the structural schematic diagram in the utility model from driving spindle unilateral observation drive disk.
Figure 11 be in the utility model band be keyed driving structure and/or three-body type shell structure bent axis type axial piston pump or
Motor.
Marked in the figure: 10 be driving spindle, 11 be first bearing supporting part, and 12 be second bearing supporting part, and 10C is driving
Spindle axis, 13 be connecting key portion, and 20 be bearing, and 21 be first bearing, and 22 be second bearing, and 30 be shell, and 31 be flange, 32
For housing body, 33 be the first cavity, and 34 be the second cavity, and 35 be shell bearing surface, and 36 be end cap, and 37 be support housing, 38
For middle shell, 36a is cylindrical guiding surface, and 36b is stroking mechanism, and 40 be liner plate, and 41 liner plate end faces, 42 be high-pressure oil chamber, and 43 be low
Pumping chamber, sealing in 44 liner plates, 45 be liner plate outer seal portion, and 46 be liner plate separation seal portion, and 47 be liner plate centre bore, and 50 are
Drive disk, 50a are hydrostatic support plane, and 51 be drive disk boss face, and 52 be grease chamber, and 53 be oil-through-hole, and 54 be close outside drive disk
Envelope portion, 55 be sealing in drive disk, and 56 be drive disk separation seal portion, and 57 support ball-and-socket to unload oilhole, 58 for plunger, and 59 are
Center is pivotally supported ball-and-socket, and 510 be auxiliary bearing surface, and 511 be radial drain pan, and 512 be annular drain pan, and 513 be keyway, and 514
It is pressing plate for boss structure, 60,70 be plunger, and 71 be plunger ball, and 72 be plunger centre bore, and 73 be taper bar portion, and 74 be column
Piston part, 80 be cylinder body, and 81 be plunger hole, and 82 be center axis pilot hole, and 83 be cylinder body end face, and 90 be center axis, and 91 be center axis
Bulb, 90C are center axis axle center, and 100 be valve plate, and 101 be valve plate cylindrical surface, and 110 be center spring.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
Although the utility model admits of various forms of embodiments, the specification and drawings disclose only such as this reality
With novel exemplary some particular forms.However the utility model is not intended to be limited to the embodiment described.The utility model
Range provide in the appended claims.
For the convenience of description, the embodiments of the present invention are shown with being typically oriented, the orientation is so that work as clino-axis type
The central axis horizontal rest of the driving spindle of plunger pump or motor, is a left side with the shaft coupling end side of driving spindle, and drive disk is
The right side, " longitudinal direction ", " transverse direction " "upper" used in description, "lower", "front", "rear", "left", "right" "horizontal", "bottom", "inner",
The terms such as "outside" are both referred to this position and use, and are merely for convenience of describing the present invention and simplifying the description, without
It is the device of indication or suggestion meaning or element must have a particular orientation and specific orientation construction and operation, Ying Li
Solution is that the utility model can be different from the orientation of the position and be manufactured, stored, transported, use and be sold.
For ease of description, emphasis is illustrated bent axis type axial piston pump, and the structure of inclined plunger motor is referred to
The structure of bent axis type axial piston pump simultaneously makes necessary change, it should be noted that all utilize the clino-axis type of the utility model principle
In plunger pump or motor can be contemplated as falling with.
Embodiment 1:
It as illustrated in figs. 2-7, is a kind of embodiment of the plane hydrostatic driving structure of bent axis type axial piston pump of the utility model,
In the preferred embodiment shown, bent axis type axial piston pump or motor include driving spindle 10, bearing 20, shell 30, liner plate 40, drive
Moving plate 50, pressing plate 60, plunger 70, cylinder body 80, central axis 90, valve plate 100.Driving spindle axle center 10C and central axis axle center 90C
At an angle, the driving spindle 10 is arranged in 30 inside of shell with one end and can be around the state that Pivot Point Center rotates
It is supported on the shell 30 via bearing 20, the other end face and drive disk 50 of the driving spindle 10 are coaxially connected, in institute
Drive disk 50 is stated towards being provided with multiple plungers bearing ball-and-sockets 58 on the end face of 80 side of cylinder body and a center is pivotally supported ball-and-socket
59, common circumferential of the plunger bearing ball-and-socket 58 centered on the 10C of driving spindle axle center is evenly spaced apart to be distributed in the drive
On 50 end face of Moving plate, plunger bearing ball-and-socket 58 and center be pivotally supported ball-and-socket 59 respectively with plunger ball 71 and central axis bulb
91 with respect to the state that 10 central axis of driving spindle fascinates can be slidably connected.The cylinder body 80 is via central axis and setting
Axial multiple plungers 70 at center and be arranged in shell 30 in a manner of it can slide, as bent axis type axial piston pump
When, prime mover (being not shown, such as electric motor, internal combustion engine etc.) drives driving spindle 10 to rotate, and driving spindle 10 is via driving
Disk 50, plunger 70 drive cylinder body 80 to rotate, and plunger 70 are moved back and forth in cylinder body, to realize the suction oil work of pump
Make.
The shell 30 includes housing body 32 open at one end and in hollow form and the end connecting with housing body 32
Lid 36, the housing body 32 have for accommodating the first cavity 33 of driving spindle 10 and bearing 20 and for accommodating cylinder body 80
The second cavity 34, the end cap 36, when necessary can be in its setting for closing 32 end face of housing body and support valve plate 100
The variable swung for variable can be arranged when bent axis type axial piston pump is variable pump in oil inlet and outlet (not shown) on end cap 36
Mechanism 36b.
The driving spindle 10 is cylindrical to be arranged in the first cavity 33 of shell, and one end stretches out shell for the external world
Prime mover (or load), the other end and drive disk 50 are coaxially connected, are provided with first bearing supporting part 11 and the second axis on it
Supporting part 12 is held, is folded with first bearing 21 between first bearing supporting part 11 and second bearing supporting part 12 and shell 30 respectively
With second bearing 22, the driving spindle 10 can be relative to housing body 32 around itself via first bearing 21 and second bearing 22
Axle center rotation mode be supported in housing body 32.
Wherein, the plunger bearing ball-and-socket 58 and center are pivotally supported ball-and-socket 59 and form opening greatly in 50 end face of drive disk respectively
Cause into hemispherical recess portion, the state that plunger bearing ball-and-socket 58 is distributed with the common circle spacing of driving spindle axle center 10C
Plunger rod bulb 71 is supported, center is pivotally supported ball-and-socket 59 and is formed at driving spindle center and propped up central axis 90
It holds.After plunger 70 and central axis 90 are mounted on plunger bearing ball-and-socket 58 and center is pivotally supported ball-and-socket 59, by pressing plate 60 by its
It is fixed on the end face of drive disk 50, so that plunger 70 and central axis 90 are separate mobile restricted with respect to 50 end face of drive disk with it
And it can fascinate relative to driving spindle axle center 10C.Certainly, for plunger 70 and central axis 90 to be fixed on 50 end face of drive disk
Mode is also not necessarily limited to by the way of pressing plate, for example, it is also possible to be provided with the sealed pressing device of shape on drive disk 50 (not
Show), which plunger rod bulb 71 and central axis bulb 91 can be fixed by being greater than the cladding of 180 degree.
The drive disk 50 connect on the end face of side with driving spindle 10 be provided with it is vertical with driving spindle axle center 10C
Hydrostatic support plane 50a is folded with the liner plate 40 for supporting drive disk 50, the liner plate between drive disk 50 and shell 30
40 be in the annular shape of plate, and the hydrostatic support plane 50a of one end end face of the liner plate 40 and drive disk 50 is can slide
Mode mutually abuts, and the other end face is to limit it along the state support that driving spindle moves in shell 30, in the driving
The oil-through-hole 53 of connection plunger bearing ball-and-socket 58 and hydrostatic support plane 50a is provided on disk 50, the oil-through-hole 53 is via setting
The plunger centre bore for being placed in plunger center is connected to the high-voltage oil liquid in cylinder body 80, and high-voltage oil liquid is introduced the quiet of drive disk 50
Between 40 end face hydraulic support plane 50a and liner plate, the hydrostatic support plane 50a and 40 end face of liner plate is made to form clearance fit
Static pressure oil film bearing.
Further, the hydrostatic support plane 50a of the drive disk 50 be equipped with multiple grease chambers 52, the grease chamber 52 be with
Driving spindle axle center 10C is that center compartment of terrain is distributed on the hydrostatic support plane 50a, and distinguishingly grease chamber 52 is uniform intervals
Distribution is provided with oil-through-hole 53 between 52 bottom of grease chamber and each plunger bearing ball-and-socket 58, and the oil-through-hole 53 will be oily
Liquid introduces the grease chamber 52.
Further, the drive disk 50 is connect on the end face of side with driving spindle 10 is provided with along 10 axis of driving spindle
The boss face 51 that the heart extends to driving spindle side, the boss face 51 be in a manner of perpendicular to driving spindle axle center 10C and
It is made of the region that interior diameter and overall diameter are encircled a city, what the boss face 51 of the drive disk 50 can be slided with 40 end face of liner plate
Mode mutually abuts.Plunger bearing 58 position corresponding position of ball-and-socket is provided with grease chamber 52, institute on the end face of the boss face 51
It is identical as plunger bearing ball-and-socket or plunger quantity to state grease chamber 52, the grease chamber 52 is being total to centered on the 10C of driving spindle axle center
Same circumference R3 is evenly spaced apart to be distributed in the boss face 51, supports ball-and-socket 58 in 52 bottom of grease chamber and each plunger
Between be provided with oil-through-hole 53, the oil-through-hole 53 is via the high pressure in the plunger centre bore and cylinder body 80 that are set to plunger center
Oil liquid connection, and high-voltage oil liquid is introduced into the grease chamber of boss face end face of drive disk, so that between boss face and liner plate end face
Form the static pressure oil film bearing of clearance fit.
In order to make to be formed effective static pressure oil film bearing between 40 end face of boss face 51 and liner plate, it is arranged in boss face 51
There is the sealing for the effect of Seal Oil liquid, as shown in figure 4, the sealing is arranged with the state for surrounding the grease chamber 52 in oil
Between room and the interior peripheral part of grease chamber, the sealing include being distributed in sealing 55 in the radially inner and outer drive disk of grease chamber and driving
Moving plate outer seal portion 54, and the drive disk separation seal portion 56 being distributed between grease chamber, sealing 55 is in the drive disk
The region encircled a city by the interior diameter R1 of 52 inward flange of grease chamber and boss face 51, the drive disk outer seal portion 54 be by grease chamber 52 outside
The region that the overall diameter R2 of edge and boss face 51 encircles a city, drive disk separation seal portion 56 is between two neighboring grease chamber 52
Spaced-apart bosses face region, remain that certain reasonable gap makes between 40 end face of sealing and liner plate of the boss face 51
It obtains oil film leakage and is in reasonable level.
In the present embodiment, the liner plate 40 in plate annular shape and vertical with driving spindle axle center 10C state folder
Between shell 30 and drive disk 50, the liner plate 40 is to be displaced quilt along the direction in driving spindle axle center relative to housing body
The state support of constraint is fixed in housing body in shell bearing surface 35, the liner plate 40 by modes such as pins, institute
State the centre bore 47 that the setting of 40 center of liner plate is penetrated through for driving spindle 10.
Wherein, the grease chamber 52 on the end face of the boss face 51 with plunger bearing 58 position corresponding position of ball-and-socket setting is along diameter
To the settable diversified forms in section, Fig. 4-Fig. 6 is three kinds of embodiments shown in the utility model, but the utility model is unlimited
In this three kinds of embodiments, all can be contemplated as falling with interior using the embodiment of the utility model principle.
Fig. 4 is one of preferred embodiment, in this embodiment, from 10 unilateral observation of driving spindle, in drive disk
The section of the grease chamber 52 being arranged in boss face 51 radially is in kidney-shaped, and kidney-shaped grease chamber both ends preferentially use half of arc-shaped, each
A kidney-shaped grease chamber is corresponding with corresponding plunger bearing ball-and-socket 58, and kidney-shaped grease chamber is uniformly circlewise distributed in boss face 51,
Kidney-shaped grease chamber bottom is provided with the oil-through-hole 53 of connection grease chamber 52 and 50 upper plug of drive disk bearing ball-and-socket 58.
Fig. 5 is another one embodiment, in this embodiment, from 10 unilateral observation of driving spindle, in the convex of drive disk
The section of the grease chamber 52 being arranged on table top 51 radially is rounded, each round grease chamber and corresponding plunger bearing ball-and-socket 58 are right
It answers, round grease chamber is uniformly circlewise distributed in boss face 51, and round grease chamber bottom is provided with connection grease chamber 52 and drives
The oil-through-hole 53 of 50 upper plug of Moving plate bearing ball-and-socket 58.
Further, in order to reduce the supporting force between drive disk 50 and liner plate 40 on metal support face, reduction abrasion can
On the basis of round grease chamber or kidney-shaped grease chamber are set in boss face 51, radially added on 50 excircle of drive disk multiple auxiliary
Bearing surface 510 is helped, as shown in fig. 6, radial drain pan 511 is provided between the aiding support face 510, the aiding support face
Annular drain pan 512, the radial direction drain pan 511 and annular drain pan are also equipped between 510 and drive disk outer seal portion 54
It is interconnected between 512.
Distinguishingly, the oil-through-hole 53 for penetrating through 52 bottom of grease chamber and plunger bearing ball-and-socket 58 or plunger centre bore 72 can be set
It is set to damping well format, or damper (not shown) can also be set in oil-through-hole 53 or plunger centre bore 72.This band resistance
The structure of Buddhist nun hole or damper makes 50 end face of drive disk and liner plate 40 form the plane static pressure oil film branch fed back with oil film pressure
It holds.This structure can be such that the pressure of grease chamber 52 changes with external load, and the specific working principle is as follows: when external load increase, oil
Film thickness is reduced, and leakage loss is reduced, and is reduced by the pressure drop of damping hole, 52 pressure rise of grease chamber, 50 end face gross thrust of drive disk adds
Greatly, so that oil film thickness restores to original value；Conversely, oil film thickness increases when external load is reduced, leakage loss is increased, and grease chamber 52 is pressed
Power decline, 50 end face gross thrust of drive disk are reduced, so that oil film thickness restores to original value.
Wherein, oil liquid is the static pressure oil film branch formed with clearance fit between 40 end face of 50 end face of drive disk and liner plate
It holds, as inclined shaft plunger pumps in ground operational process, part oil will certainly be generated between 40 end face of 50 end face of drive disk and liner plate
Liquid leakage, the oil liquid of the leakage enter in the first cavity 33 of housing body 32, play lubrication and are arranged in first cavity 33
The effect of inner bearing 20, but as oil liquid is in the aggregation of the first cavity 33, oil liquid is trapped in the first cavity 33, so that oil liquid pressure
Power increases, and the delay of oil liquid can generate the thrust to drive disk 50 to 80 side of cylinder body, to destroy 50 end face of drive disk
With the hydrostatic balanced action of 40 end face of liner plate.Therefore to prevent this detrimental effect, at least one is provided on drive disk 50
A perforation 50 two sides cavity of drive disk unloads oilhole 57, it is described unload oilhole 57 by by drive disk 50 obstruct towards driving spindle side
33 inner fluid of the first cavity lead to the second cavity 34 of 80 side of cylinder body, prevent hydraulic oil liquid from being trapped in 33 in the first cavity
It is interior, to guarantee to be in reasonable oil pressure state in the first cavity 33.
In the present embodiment, the bearing 20 is folded between driving spindle 10 and housing body 32, and the bearing 20 wraps
Containing first bearing 21 and second bearing 22, the setting of first bearing 21 is in 10 first bearing supporting part 11 of driving spindle with shell 30
Between circumferential surface, second bearing 22 is arranged between 10 second bearing supporting part 12 of driving spindle and 30 inner peripheral surface of shell, first axle
Hold setting retaining ring (not shown) between 21 and second bearing 22.Preferably, first bearing 21 is set as thrust bearing or to mandrel
It holds, second bearing 22 is set as comprising at least one radial bearing.
Wherein, the plunger 70 includes that one end is supported on the plunger bearing ball-and-socket 58 of drive disk and fixes via pressing plate 60
In the plunger ball 71 of driving side surface, for being connected to plunger hole 81 and plunger bearing ball-and-socket 58 and oil liquid being passed to hydrostatic support
The plunger centre bore 72 in face, outer peripheral surface in cone taper bar portion 73 and with cylinder body plunger hole wall clearance fit and can be at it
The plunger portion 74 of interior reciprocating motion.But it should be recognized that plunger is not limited to cone-shaped plunger type, can also be comprising both ends
Connecting rod-plunger of bulb or spherical surface plunger with universal hinge.
The cylinder body 80 is that radially section is circular column-shaped configuration, is contained in the second cavity 34 of housing body 32
It is interior, have with the circumferential equally distributed multiple plunger holes 81 of central axis axle center 90C and is used to accommodate in central axis at center
Mandrel pilot hole 82, the plunger hole 81 and central axis pilot hole 82 are circular shape along radial section, and in cylinder body court
It is formed and is open to the end face of 50 side of drive disk, the column of cylinder body 80 is inserted into described 70 one end of plunger in a manner of it can move back and forth
In consent 81, central axis 90 passes through the central axis pilot hole 82 of cylinder body, one end warp in the form of its axis body periphery bearing cylinder body 80
Ball-and-socket 59 is pivotally supported by the center that the effect of central spring 110 is connected to drive disk 50.
The side that the cylinder body 80 is acted on towards 36 1 side end face of end cap via the precompression of central spring 110 can slide
Formula is closely abutted with 100 end face of valve plate, and being formed, there is the static pressure oil film of clearance fit to support, 80 end face of cylinder body and valve plate
100 end faces can be set to the mating surface of plane or spherical surface configuration.High-pressure mouth and low pressure port are provided with (not on the valve plate 100
Show), the high-pressure mouth and low pressure port are divided into two sides by the plane of driving spindle axle center 10C and central axis axle center 90C.It is right
It is pumped in variable displacement inclined shaft plunger, 100 end face of valve plate abutted with end cap 36 is arranged to cylindrical surface 101, correspondingly, with valve plate
100 end faces are opposed and 36 end face of end cap that closely abuts is also provided with into and the matched cylindrical guiding surface in valve plate cylindrical surface 101
36a, the cylindrical surface of valve plate 100 can be on the cylindrical guiding surface 36a of end cap with close under the action of stroking mechanism (not shown)
The state connect is slided, to realize the displacement variation of pump.
As shown in figure 11, show the utility model with key connection driving structure hydrostatic support formula inclined shaft plunger pump or
Motor, in the preferred embodiment shown, the driving spindle 10 and the drive disk 50 are separate type absolute construction, close
Be provided with connecting key portion 13 on 10 outer peripheral surface of driving spindle of drive disk side, the connecting key portion 13 may be configured as include but not
It is limited to the structures such as flat key, rectangular spline, involute spline, it is preferable that the connecting key portion 13 is connected using involute spline, more
Be conducive to transmit moment loading, be provided on drive disk 50 and the 10 matched keyway in connecting key portion of driving spindle, driving
Main shaft 10 and drive disk 50 are connected by key realization transmission.
Further, the center circumference of the drive disk 50 is provided with the boss structure 514 axially extended, described
The matched keyway 513 in connecting key portion 13 with the driving spindle 10 is provided on boss structure 514, the driving spindle 10 is inserted
State and the drive disk 50 in the keyway 513 for entering the drive disk 50, and can retreat in it are keyed.
As shown in figure 11, show the three-body type shell structure in the utility model hydrostatic support formula inclined shaft plunger pump or
Motor, in the preferred embodiment shown, the shell 30 include the support housing for accommodating driving spindle 10 and bearing 20
37, for accommodating the middle shell 38 and end cap 36 of cylinder body, middle 38 both ends of shell respectively with the support housing 37 and end cap
36 are bolted, and the hydraulic coupling from plunger at one end is passed through plane hydrostatic driving disk 50 and is transferred to by the drive disk 50
On the support housing 37 of pump or motor.
Wherein, the support housing 37 is used to support the axis of the action of hydraulic force from plunger side, especially hydraulic coupling
To component.Since support housing 37 is independent a part, can use various methods facilitate processing support housing 37 with
The opposed end face of liner plate 40, including processing the drain pan for pressure release, hole, pin (not shown) etc. on its surface.End cap 36
It is bolted with middle shell 38, end cap 36 is provided with oil inlet and oil outlet (not shown), can set on end cap 36 when necessary
Set the stroking mechanism 36b for regulated variable.
The bent axis type axial piston pump of the utility model in the process of running, effect of the plunger by hydraulic coupling, and be transferred to drive
On Moving plate, at an angle due to driving spindle axle center and central axis axle center, hydraulic coupling resultant force is also in certain with driving spindle
Angle, hydraulic coupling can be analyzed to the axial thrust load along driving spindle and the radial component perpendicular to driving spindle axle center.Due to setting
Horizontalization face hydrostatic driving structure, the axial thrust load of hydraulic coupling is by drive disk by the oil between hydrostatic support face and liner plate end face
Film bearing, and supporting force is further transferred to the housing body or support housing of pump.The radial component of hydraulic coupling by with drive
The driving spindle of Moving plate connection undertakes via the first bearing and second bearing being arranged between driving spindle and housing body.Cause
This, it should be noted that the bearing of the utility model is mainly used for taking the radial component of hydraulic coupling, and hardly needs by axis
The axial thrust load of hydraulic coupling is undertaken, therefore, significantly reduces the axial load of bearing, loading ability of bearing radial direction can be given full play of
The advantage of load reduces the requirement of bearing arrangement.
In addition, the working condition of bearing is improved due to the axial thrust load for using plane hydrostatic support transmitting hydraulic coupling,
Improve the functional reliability and working life of bent axis type axial piston pump or motor.Since plane hydrostatic driving structure assumes responsibility for absolutely greatly
The axial thrust load of section hydraulic power, so that the diameter of driving spindle can be set smaller, matched bearing is radial
Size is also smaller, therefore, reduces the volume and weight of bent axis type axial piston pump or motor, improves the unit mass of pump or motor
Power ratio.Since bearing is not subject to the axial thrust load of hydraulic coupling, it is solely subjected to the radial component of hydraulic coupling, therefore, string can not had to
The pairs of radial thrust bearing of connection, common bearing is just able to satisfy requirement, greatly reduces the technical requirements of bearing arrangement, then plus
Upper bearing (metal) size is smaller, therefore reduces the price of bent axis type axial piston pump or motor.Due to using plane hydrostatic support driving knot
Structure, the axial thrust load of hydraulic coupling are offset by the hydraulic coupling of hydrostatic support driving structure, and power is transferred to shell, therefore can be into
One step improves the operating pressure and working speed of bent axis type axial piston pump or motor.
Embodiment 2:
As seen in figs. 8-10, the bent axis type axial piston pump or motor of the utility model embodiment 2 are shown, with embodiment 1
The difference is that connecting the structure in the 50 hydrostatic support face of drive disk of side with driving spindle 10 and being folded in drive disk
The structure of liner plate 40 between 50 and shell 30, other can refer to structure described in embodiment 1.
As shown in FIG. 8 and 9, the structure for being folded in liner plate 40 between drive disk 50 and shell 30 is shown, is driven in direction
50 side of disk is provided at least one high-pressure oil chamber 42 on the liner plate end face 41 opposed with drive disk hydrostatic support face, can only set
High-pressure oil chamber 42 is set, the high-pressure oil chamber 42 is intermittently connected to via oil-through-hole 53 with the plunger hole 81 of corresponding high pressure oil side,
Oil liquid is introduced high-pressure oil chamber 42 by the oil-through-hole 53.Alternatively, the liner plate 40 is arranged on the end face of 50 side of drive disk
Have at least one high-pressure oil chamber 42 and a low pressure grease chamber 43, the high-pressure oil chamber 42 and low pressure grease chamber 43 respectively via oil-through-hole 53 with
Corresponding high pressure oil side is intermittently connected to the plunger hole 81 of low pressure oil side, and oil liquid is introduced high pressure oil by the oil-through-hole 53 respectively
Room 42 and low pressure grease chamber 43, i.e. high-pressure oil chamber 42 are full of high-voltage oil liquid, and low pressure grease chamber 43 is full of low pressure oil liquid.
It is further preferred that the section of the high-pressure oil chamber 42 and/or low pressure grease chamber 43 radially is kidney-shaped shape, high pressure
Grease chamber 42 and/or low pressure grease chamber 43 are divided into two sides by the plane through driving spindle axle center 10C and cylinder center axis axle center 90C,
High-pressure oil chamber 42 and/or low pressure grease chamber 43 can be symmetrically or non-symmetrically distributed relative to the plane.In the high-pressure oil chamber 42 and/or
The interior peripheral part of low pressure grease chamber 43 and it is provided with sealing between the high-pressure oil chamber 42 and/or low pressure grease chamber 43, it is described
Sealing includes to be distributed in sealing 45 and liner plate outer seal portion 44 in the radially inner and outer liner plate of grease chamber, and be distributed high-pressure oil chamber
Liner plate separation seal portion 46 between 42 and/or low pressure grease chamber 43, in the liner plate sealing 45 be by high-pressure oil chamber 42 and/or
The region that 43 inward flange of low pressure grease chamber and the interior diameter R4 of liner plate end face 41 encircle a city, the liner plate outer seal portion 44 is by high pressure oil
The region that room 42 and/or 43 outer edge of low pressure grease chamber and the overall diameter R5 of liner plate end face encircle a city, liner plate separation seal portion 46
It is the interval region between high-pressure oil chamber 42 and/or low pressure grease chamber 43.
As shown in Figure 10, it is provided on drive disk 50 end face opposed with liner plate end face 41 matched with liner plate end face 41
The boss face 51 extended along driving spindle axle center 10C to liner plate side, liner plate end face 41 is with boss face 51 always with slidable
The mutual clearance fit of mode is provided with connection plunger branch on drive disk 50 at position corresponding with each plunger bearing ball-and-socket 58
The oil-through-hole 53 of the boss face 51 of ball-and-socket 58 and drive disk is held, which is connected to simultaneously with the oil-through-hole 53 being arranged in plunger
The intracorporal high pressure oil of cylinder and/or low pressure oil are led in corresponding high-pressure oil chamber 42 and/or low pressure grease chamber 43, so that liner plate end face
Oil film hydrostatic support is formed with drive disk boss face.
It, cannot the above content is specific optimal technical scheme further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to and these explanations.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, and all are not
Be detached from the spirit and scope of the utility model technical solution and and its improve, the right that should all cover in the utility model wants
It asks in range.
Claims (12)
1. a kind of plane hydrostatic driving structure, including being arranged in the driving spindle that shell (30) is internal and supports via bearing (20)
(10) and with the driving spindle (10) drive disk (50) connecting, it is characterised in that: the drive disk (50) and driving are led
It is provided with the hydrostatic support plane (50a) vertical with driving spindle axle center (10C) on the end face of axis (10) connection side, it is described quiet
The liner plate (40) for supporting the drive disk (50) is folded between hydraulic support plane (50a) and the shell (30), in institute
State the logical of plunger bearing ball-and-socket (58) and hydrostatic support plane (50a) being provided in connection drive disk (50) on drive disk (50)
Oil liquid is introduced between the end face hydrostatic support plane (50a) and liner plate (40), is made described quiet by oilhole (53), the oil-through-hole (53)
The static pressure oil film that hydraulic support plane (50a) and liner plate (40) end face form clearance fit supports, and passes through the axial thrust load of hydraulic coupling
Shell (30) are transferred to by plane hydrostatic driving structure.
2. plane hydrostatic driving structure according to claim 1, it is characterised in that: the hydrostatic support of the drive disk (50)
Plane (50a) is equipped with multiple grease chambers (52), and the multiple grease chamber (52) is center compartment of terrain point with driving spindle axle center (10C)
Cloth is provided with logical on hydrostatic support plane (50a) between each grease chamber (52) bottom and corresponding plunger bearing ball-and-socket (58)
Oil liquid is introduced the grease chamber (52) by oilhole (53), the oil-through-hole (53), makes the hydrostatic support plane (50a) and liner plate
(40) end face forms the static pressure oil film bearing of clearance fit.
3. plane hydrostatic driving structure according to claim 2, it is characterised in that: the hydrostatic support plane (50a) is
The boss face (51) extended on drive disk (50), along the driving spindle axle center (10C) to driving spindle side, the boss face
(51) multiple grease chambers (52) are equipped with, the multiple grease chamber (52) is that center compartment of terrain is distributed in driving spindle axle center (10C)
On the boss face (51), oil liquid is introduced the grease chamber (52) by the oil-through-hole (53), makes the boss face (51) and liner plate
(40) end face forms the static pressure oil film bearing of clearance fit.
4. plane hydrostatic driving structure according to claim 3, it is characterised in that: be provided on the boss face (51)
For sealing the sealing of oil liquid, the sealing include setting in the interior sealing (55) of grease chamber (52) radially inner and outer side and outside
Sealing (54), and the separation seal portion (56) being arranged between adjacent grease chamber (52).
5. plane hydrostatic driving structure according to claim 4, it is characterised in that: the boss face in the drive disk (50)
(51) periphery is provided with multiple aiding support faces (510), is provided with radial drain pan between the aiding support face (510)
(511), annular drain pan (512), the radial direction are provided between the aiding support face (510) and the outer seal portion (54)
It is interconnected between drain pan (511) and annular drain pan (512).
6. plane hydrostatic driving structure according to claim 2, it is characterised in that: the oil-through-hole (53) or plunger center
Hole (72) is arranged to damping hole or is provided with damper, and the damping hole or damper can make the oil pressure of grease chamber (52) with outer lotus
It carries variation and changes, to form the hydrostatic support fed back with oil film pressure.
7. plane hydrostatic driving structure according to claim 1, it is characterised in that: be provided on the drive disk (50)
At least one penetrates through drive disk (50) both ends and unloads oilhole (57), and described to unload oilhole (57) opposite by drive disk (50) two sides
Closed the first cavity (33) is connected to the second cavity (34), and is enclosed in the first sky for that will be obstructed by the drive disk (50)
Oil liquid in chamber (33) is led in the second cavity (34) of cylinder body side, to guarantee in the first cavity (33) in reasonable oil
Pressure.
8. plane hydrostatic driving structure according to claim 1, it is characterised in that: the liner plate (40) is close to drive disk
(50) be provided at least one high-pressure oil chamber (42) on the end face of side, the high-pressure oil chamber (42) via oil-through-hole (53) with it is right
The plunger hole (81) for the high pressure oil side answered intermittently is connected to, and oil liquid is introduced high-pressure oil chamber (42) by the oil-through-hole (53)；Alternatively,
The liner plate (40) is provided at least one high-pressure oil chamber (42) and low pressure grease chamber on the end face of drive disk (50) side
(43), the high-pressure oil chamber (42) and low pressure grease chamber (43) are respectively via oil-through-hole (53) and corresponding high pressure oil side and low pressure oil
The plunger hole (81) of side is intermittently connected to, and oil liquid is introduced high-pressure oil chamber (42) and low pressure grease chamber by the oil-through-hole (53) respectively
(43).
9. plane hydrostatic driving structure according to claim 8, it is characterised in that: the high-pressure oil chamber (42) and/or low
It is led in kidney-shaped shape, the high-pressure oil chamber (42) and/or low pressure grease chamber (43) through driving in the section of pumping chamber (43) radially
The plane of axis axle center (10C) and central axis axle center (90C) are divided into two sides, the high-pressure oil chamber (42) and/or low pressure grease chamber
(43) it is symmetrically or non-symmetrically distributed relative to plane, is set in the interior periphery of the high-pressure oil chamber (42) and/or low pressure grease chamber (43)
It is equipped with sealing, the sealing includes that sealing (45) and liner plate outer seal portion in the liner plate of the radially inner and outer side of grease chamber is arranged in
(44), and liner plate separation seal portion (46) between high-pressure oil chamber (42) and/or low pressure grease chamber (43) is set.
10. it is a kind of include the bent axis type axial piston pump of plane hydrostatic driving structure described in any one of claim 1 to 9 or
Motor, including shell (30), plunger (70), valve plate (100), bearing (20), cylinder body (80) and central axis (90), the driving
At an angle, described driving spindle (10) one end is arranged in the shell for spindle axis (10C) and the central axis axle center (90C)
Body (30) is internal and is supported on the shell (30) via bearing (20), and the driving spindle (10) can revolve around Pivot Point Center
Turn, the driving spindle (10) and drive disk (50) are coaxially connected, the cylinder body (80) via central axis (90) bearing and with match
The mode that flow table (100) abuts is rotated around Pivot Point Center, and the drive disk (50) is towards being arranged on the end face of cylinder body (80) side
There are multiple plunger bearings ball-and-socket (58) and a center to be pivotally supported ball-and-socket (59), plunger bearing ball-and-socket (58) and central axis branch
Hold ball-and-socket (59) respectively with plunger ball (71) and central axis bulb (91) with can opposite driving spindle axle center (10C) fascinate
State sliding connection, it is characterised in that: the plane hydrostatic driving structure makes the hydraulic coupling from plunger (70) side
Axial thrust load is supported by the drive disk (50) and is transferred to the shell (30) of plunger pump or motor.
11. bent axis type axial piston pump according to claim 10 or motor, it is characterised in that: the driving spindle (10) and drive
Moving plate (50) is separate type absolute construction, is provided on driving spindle (10) outer peripheral surface close to the drive disk (50) side
Connecting key portion (13) is provided with connecting key portion (13) matched keyway with the driving spindle (10) on the drive disk (50)
(513), the driving spindle (10) and drive disk (50) are connected by key realization transmission.
12. bent axis type axial piston pump according to claim 10 or motor, it is characterised in that: the shell (30) is three-body type
Absolute construction, the shell (30) include for accommodating the support housing (37) of driving spindle (10) and bearing (20), for holding
Receive cylinder body (80) middle shell (38) and end cap (36) for shell (38) one end in close, middle shell (38) both ends are distinguished
It is bolted with support housing (37) and end cap (36), the drive disk (50) will come from the hydraulic coupling of plunger (70) one end
It is transferred to by drive disk (50) on the support housing (37) of plunger pump or motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820763685.9U CN208416832U (en) | 2018-05-22 | 2018-05-22 | A kind of plane hydrostatic driving structure and bent axis type axial piston pump or motor comprising the structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820763685.9U CN208416832U (en) | 2018-05-22 | 2018-05-22 | A kind of plane hydrostatic driving structure and bent axis type axial piston pump or motor comprising the structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208416832U true CN208416832U (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820763685.9U Active CN208416832U (en) | 2018-05-22 | 2018-05-22 | A kind of plane hydrostatic driving structure and bent axis type axial piston pump or motor comprising the structure |
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| Country | Link |
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| CN (1) | CN208416832U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067719A (en) * | 2018-05-22 | 2019-07-30 | 钟彪 | A kind of plane hydrostatic driving structure and bent axis type axial piston pump or motor comprising the structure |
| CN111255651A (en) * | 2020-03-02 | 2020-06-09 | 韩国昊 | Air compressor |
| CN112594149A (en) * | 2019-10-02 | 2021-04-02 | 罗伯特·博世有限公司 | Adjusting piston and adjusting and moving device |
-
2018
- 2018-05-22 CN CN201820763685.9U patent/CN208416832U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067719A (en) * | 2018-05-22 | 2019-07-30 | 钟彪 | A kind of plane hydrostatic driving structure and bent axis type axial piston pump or motor comprising the structure |
| CN112594149A (en) * | 2019-10-02 | 2021-04-02 | 罗伯特·博世有限公司 | Adjusting piston and adjusting and moving device |
| CN111255651A (en) * | 2020-03-02 | 2020-06-09 | 韩国昊 | Air compressor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231102 Address after: 610041 No. 6, D District, Tianfu Software Park, 599 Century City South Road, Chengdu High-tech Zone, Sichuan, China. Patentee after: CHENGDU ZHONGWU LIANCHUANG TECHNOLOGY CO.,LTD. Address before: 611130 room 11, 6 / F, unit 4, building 16, No. 66, middle section of Yangliu West Road, Liucheng, Wenjiang District, Chengdu, Sichuan Patentee before: Zhong Biao |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240126 Address after: Room J9296, 7th Floor, Building 7, No. 328 Jiajian Road, Jiading District, Shanghai, 2018 Patentee after: Shanghai Qiangtian Drive Technology Co.,Ltd. Guo jiahuodiqu after: Zhong Guo Address before: 610041 No. 6, D District, Tianfu Software Park, 599 Century City South Road, Chengdu High-tech Zone, Sichuan, China. Patentee before: CHENGDU ZHONGWU LIANCHUANG TECHNOLOGY CO.,LTD. Guo jiahuodiqu before: Zhong Guo |