CN208858548U - Axial plunger pump swash plate-secondary the abrasion testing device of piston shoes friction - Google Patents
Axial plunger pump swash plate-secondary the abrasion testing device of piston shoes friction Download PDFInfo
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- CN208858548U CN208858548U CN201821418201.3U CN201821418201U CN208858548U CN 208858548 U CN208858548 U CN 208858548U CN 201821418201 U CN201821418201 U CN 201821418201U CN 208858548 U CN208858548 U CN 208858548U
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- swash plate
- piston shoes
- plunger
- oil
- testing device
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Abstract
The utility model discloses a kind of axial plunger pump swash plate-secondary abrasion testing devices of piston shoes friction, it include: loading mechanism, driving mechanism, swash plate angle regulating device and piston shoes positioning and clamping mechanism, loading mechanism is connect with piston shoes positioning and clamping mechanism, swash plate angle regulating device is installed in driving mechanism, the utility model solves the problems, such as that the bench test of axial plunger pump complete machine and real engine integrated survey period are tediously long and complicated, it is able to achieve and completes the secondary wearing character assessment of swash plate-piston shoes friction within the short test period, provide reliable basis to actual production.
Description
Technical field
The utility model relates to a kind of abrasion testing device, in particular to a kind of axial plunger pump swash plate-piston shoes friction is secondary
Abrasion testing device.
Background technique
Compared with tradition machinery, hydraulic machinery has a series of advantage, obtains in engineering machinery very extensive
Application, axial plunger pump is that structure is most complicated in Hydraulic Field, to one of technique, the higher element of material requirements.Especially
Friction therein is secondary harsher to performance requirements such as process materials, and swash plate-piston shoes friction is secondary as most important one friction
One of pair not only has complicated motion state and kinetic characteristics, and locating working environment is also quite severe, and its performance is direct
Influence the working performance of axial plunger pump.As hydraulic pump constantly develops to high speed and high pressure high power, swash plate-piston shoes friction pair
Friction velocity is further exacerbated by with the pressure born, and swash plate-secondary wear-out failure of piston shoes friction is accelerated, therefore, to swash plate-
Slipper coupling is tested for the property under different operating conditions and is very important.
However the swash plate carried out both at home and abroad-piston shoes rub, the experiment effect of secondary wear test is undesirable, to swash plate and piston shoes
Service load, the secondary relative rotation speed of the rotating diameters of plunger piston slippery boots, the angle of swash plate, friction, lubricating oil quality and pressure
It can not be tested, this results in that swash plate-secondary working condition under various operating conditions of piston shoes friction can not be studied.And swash plate-cunning
The secondary wear test of boots friction usually carries out complete machine endurance test, not only period tediously long inefficiency and needs to spend a large amount of people
Power material resources.
Utility model content
For the technical problems in the prior art, the purpose of this utility model is: it is oblique to provide a kind of axial plunger pump
Disk-secondary the abrasion testing device of piston shoes friction.
The purpose of this utility model is achieved through the following technical solutions: a kind of axial plunger pump swash plate-secondary mill of piston shoes friction
Damage test device, comprising: loading mechanism, driving mechanism, swash plate angle regulating device and piston shoes positioning and clamping mechanism load machine
Structure is connect with piston shoes positioning and clamping mechanism, and swash plate angle regulating device is installed in driving mechanism, piston shoes positioning and clamping mechanism packet
Include bevel gear pair, locating piece, fixed shell, gripping block and plunger mechanism, bevel gear pair have the large bevel gear being meshed and
Cone pinion offers spiral of Archimedes groove on large bevel gear one side, has on locating piece and be connected to Archimedes
Spiral of Archimedes convex block in spiral line groove is fixed on shell and offers adjustment conduit, and adjustment conduit supplies the clamping
It is packaged enter and gripping block can along adjustment conduit move to adjust the fixation position of gripping block, locating piece is oppositely arranged with gripping block,
Form the clamping section for plunger mechanism described in clamping between locating piece and gripping block, plunger mechanism include cylinder, plunger with
And spring, the cylinder are clamped in clamping section, plunger and spring are set in cylinder, and spring is located at cylinder body bottom pushing tow institute
Plunger is stated, piston shoes are installed on plunger and stretch out on the end of cylinder and be in contact with inclined panel test face；
The swash plate angle regulating device includes swash plate support plate, driving plate and studdle, swash plate support plate and branch
Supportting screw rod is two, and two swash plate support plates are oppositely arranged on swash plate two sides, and two swash plate support plates offer circle on opposite side
There is the swash plate respectively with the circular groove cooperation in two swash plate support plates and the opposite circular groove sliding of energy to support cambered surface for slot, swash plate two sides,
Two swash plate support plates are fixedly attached in driving plate, and driving plate corresponds to swash plate radially opposite sides and offers adjusting screw hole, two support spiral shells
Bar is each passed through two adjusting screw holes and is in contact with swash plate to fix the inclined angle of swash plate.
It preferably, further include the lubricating arrangement for applying lubricating oil to piston shoes rubbing surface, lubricating arrangement includes oil pump, and cylinder is opened
Equipped with oilhole, the through-hole of connection piston shoes rubbing surface is offered on piston shoes, offers on plunger and send oily channel, send oily channel outlet with
Through-hole connection, send oily channel oil inlet to be connected to oilhole, oil pump is connected to oilhole.
Preferably, lubricating arrangement further includes throttle valve for adjusting lubricating oil oil pressure and for detecting lubricating oil oil pressure
Pressure gauge, oil pump are connected to by throttle valve with oilhole.
Preferably, locating piece is two with gripping block and is arranged in a one-to-one correspondence, and plunger mechanism is two, two piston engines
In the clamping section that structure is clamped to two locating pieces respectively and gripping block is formed；
Annular link slot is offered on cylinder, and there is the protrusion that can cooperate with annular link slot on locating piece and gripping block
Portion.
Preferably, it radially opens up on fixed shell there are two guide groove, two locating pieces are stretched out from guide groove, fixed shell
Middle part is extended with bearing installation axle, further includes gear-bearing, and gear-bearing is installed in bearing installation axle, and large bevel gear is installed to
On gear-bearing.
Preferably, the gripping block includes adjustment bolt and L-shaped fixture block, and adjustment bolt connects after passing through fixture block
Into adjustment conduit.
Preferably, loading mechanism includes load oil pump, three-position four-way valve, dual hydraulic control one-way valve, load regulating valve, unloading tune
Saving valve and hydraulic cylinder, three-position four-way valve pumps oil liquid to load regulating valve or load out control valve for controlling load oil pump, and three
Position four-way valve is connect with load regulating valve and load out control valve respectively by dual hydraulic control one-way valve, loads regulating valve or load out control
Valve is connected to two oil pockets of hydraulic cylinder respectively, and the piston rod of hydraulic cylinder is connect with piston shoes positioning and clamping mechanism；It further include for examining
Hydraulic cylinder is surveyed to the pressure sensor of the loading force size of application.
Preferably, swash plate angle regulating device further includes pre-determined bit bolt, and swash plate support plate has positioning arc slot, pre-determined bit
Bolt passes through positioning arc slot and is connected on swash plate；
The position that piston shoes are connect with plunger offers spherical groove, and the end that plunger and piston shoes cooperate is spherical end, spherical
End is cooperated in spherical groove.
Preferably, driving mechanism includes motor, main shaft, shell, measure speed gears and velocity sensor, and main shaft is installed to outer
On shell, motor is connect with main shaft, and measure speed gears fixing sleeve is attached on main shaft, and velocity sensor corresponds to measure speed gears setting, is tested the speed
Sensor is used to detect the revolving speed of measure speed gears.
The utility model compared with the existing technology have following advantages and effects
1, the utility model solves the bench test of axial plunger pump complete machine and the real engine integrated survey period is tediously long
And complicated problem, it is able to achieve and completes the secondary wearing character assessment of swash plate-piston shoes friction within the short test period, to practical raw
It produces and reliable basis is provided.
2, the piston shoes positioning and clamping mechanism of the utility model can twist handwheel by hand, can adjust positioning in a certain range
The position of block changes the distribution situation of the piston shoes under actual condition, realizes to not to change the relative distance of two piston shoes
With swash plate under piston shoes rotating diameter-secondary wear testing of piston shoes friction, reference is provided to actual condition.
3, it is rubbed secondary revolution, load by changing rub secondary revolving speed, swash plate-piston shoes of the tilt angle of swash plate, swash plate-piston shoes
Power, piston shoes rotating diameter, lubricating oil quality and lubricating oil pressure etc. influence the frictional influence factor of test result, to test
Swash plate-secondary abrasion condition of piston shoes friction under various different operating conditions out.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is that the utility model removes the schematic diagram after driving mechanism；
Fig. 3 is the schematic diagram of the piston shoes positioning and clamping mechanism of the utility model；
Fig. 4 is the structural schematic diagram of the fixation shell of the utility model；
Fig. 5 is that the swash plate of the utility model is connected to the schematic diagram in swash plate support plate；
Fig. 6 is the perspective view of Fig. 5；
Fig. 7 is the structural schematic diagram of the swash plate of the utility model；
Fig. 8 is the schematic diagram of the loading mechanism of the utility model.
Specific embodiment
The present invention will be further described in detail with reference to the embodiments and the accompanying drawings, but the implementation of the utility model
Mode is without being limited thereto.
A kind of axial plunger pump swash plate-secondary abrasion testing device of piston shoes friction, comprising: loading mechanism, driving mechanism, swash plate
Angle adjustment device and piston shoes positioning and clamping mechanism, loading mechanism are connect with piston shoes positioning and clamping mechanism, and swash plate angle is adjusted
Device is installed in driving mechanism；
Piston shoes positioning and clamping mechanism includes bevel gear pair, locating piece 1, fixed shell 2, gripping block 3, handwheel and piston engine
Structure, bevel gear pair have the large bevel gear 4 and cone pinion 5 being meshed, and handwheel is connect with cone pinion 5,4 side of large bevel gear
Spiral of Archimedes groove is offered on face, and there is the A Ji meter being connected in spiral of Archimedes groove on locating piece 1
Moral helix convex block 6 is fixed on shell 2 and offers adjustment conduit 44, and adjustment conduit 44 is packed into for the gripping block 3 and gripping block
3 can along adjustment conduit 44 move to adjust the fixation position of gripping block 3, locating piece 1 is oppositely arranged with gripping block 3, locating piece 1 and
The clamping section for plunger mechanism described in clamping is formed between gripping block 3, plunger mechanism includes cylinder 8, plunger and spring
10, the cylinder 8 is clamped in clamping section, and plunger 9 and spring 10 are set in cylinder 8, and spring 10 is located at 8 bottom of cylinder top
The plunger is pushed away, piston shoes 11 are installed on plunger and stretch out on the end of cylinder 8 and be in contact with the rubbing surface of swash plate 12；It is preferred that
, the gripping block 3 includes adjustment bolt 26 and L-shaped fixture block, and adjustment bolt 26 is connected to adjustment after passing through fixture block
In conduit 44.
By rotating handwheel, cone pinion 5 can be driven to rotate and then large bevel gear 4 is driven to rotate, due to Archimedes's spiral shell
There is spin line groove the characteristic of spiral of Archimedes therefore two locating pieces 1 can be driven to move up and down simultaneously, thus to cylinder 8
It is positioned, and gripping block 3 can be moved along adjustment conduit 44, adjustment conduit 44 can be ellipse elongated slot, when being moved to required position
It postpones, is connected in adjustment conduit 44 after adjustment bolt 26 is passed through fixture block to which fixture block be fixed up, at this point, cylinder 8 fills
It is sandwiched between locating piece 1 and fixture block；
Spring 10 is placed in cylinder 8, and one end is contacted with 8 bottom surface of cylinder, and the other end and plunger contact can using spring 10
It is kept in contact piston shoes with swash plate always, thus the progress of guarantee test.
Offer annular link slot on cylinder 8, locating piece 1 with have in gripping block 3 can cooperate with annular link slot it is convex
Portion 40 is played, when cylinder 8 is clamped in clamping section, the locating piece 1 matches with the lug boss 40 of gripping block 3 and annular link slot
It closes, to prevent cylinder 8 from generating axial movement.For locking cylinder 8 that can be more firm, lug boss 40 can be set to annular protrusion
Portion.
The swash plate angle regulating device includes swash plate support plate 13, driving plate 14 and studdle 15, swash plate support
Plate 13 and studdle 15 are two, and two swash plate support plates 13 are oppositely arranged on swash plate two sides, and two swash plate support plates 13 are opposite
Offer circular groove 16 on side, swash plate two sides have respectively with the cooperation of circular groove 16 in two swash plate support plates 13 and can opposite circular groove
The swash plate of 16 slidings supports cambered surface 17, and two swash plate support plates 13 are fixedly attached in driving plate 14, the corresponding swash plate diameter of driving plate 14
Adjusting screw hole is offered to two sides, two studdles 15 are each passed through two adjusting screw holes and are in contact with swash plate to fix swash plate inclination
Angle.
Swash plate angle regulating device further includes pre-determined bit bolt 42, and swash plate support plate has positioning arc slot 43, is pre-positioned spiral shell
Bolt 42 passes through positioning arc slot 43 and is connected on swash plate.
Two studdles, 15 tail end, which withstands swash plate, makes the fixation of swash plate tilt angle not change, and passes through two studdles 15
The variation that can limit swash plate angle is adjusted, two swash plate support plates are mainly used for supporting swash plate, and the swash plate support cambered surface 17 of swash plate can
It is slided along circular groove 16, when swash plate support cambered surface 17 is slided, the tilt angle of swash plate generates variation, when swash plate reaches setting inclination
When angle, pre-determined bit bolt 42 passes through positioning arc slot 43 and is connected on swash plate to pre-locked swash plate.
It preferably, further include the lubricating arrangement for applying lubricating oil to piston shoes rubbing surface 12, lubricating arrangement includes oil pump 18, cylinder
Body 8 offers oilhole 19, and the through-hole 20 of connection piston shoes rubbing surface 12 is offered on piston shoes, offers on plunger and send oily channel 21,
It send the oily outlet of channel 21 to be connected to through-hole 20, send oily 21 oil inlet of channel to be connected to oilhole 19, oil pump 18 is connected to oilhole 19.
Preferably, lubricating arrangement further includes throttle valve 22 for adjusting lubricating oil oil pressure and for detecting lubricating oil oil pressure
Pressure gauge 23, oil pump 18 is connected to by throttle valve 22 with oilhole 19.
Oil liquid is pumped into oilhole 19 by oil pump 18, oil liquid enter after oilhole 19 by send oily channel 21 enter through-hole 20 to
Piston shoes rubbing surface 12 is lubricated, swash plate-piston shoes friction pair is lubricated, throttle valve 22 is used to adjust the pressure of oil liquid,
It can probe under different oil pressure, the secondary abrasion condition variation of swash plate-piston shoes friction.
The position that piston shoes are connect with plunger offers spherical groove, and the end that plunger and piston shoes cooperate is spherical end 41, ball
Shape end 41 is cooperated in spherical groove.Cooperated by spherical end 41 and spherical groove, piston shoes can be done around the spherical end 41 of plunger
Any rotation within the scope of certain angle.
Preferably, locating piece 1 is two with gripping block 3 and is arranged in a one-to-one correspondence, and plunger mechanism is two, two plungers
Mechanism is clamped to respectively in the clamping section that two locating pieces 1 are formed with gripping block 3.
Preferably, it radially opening up on fixed shell 2 there are two guide groove 24, two locating pieces 1 are stretched out from guide groove 24, Gu
It is extended with bearing installation axle 25 in the middle part of fixed shell 2, further includes gear-bearing, gear-bearing is installed in bearing installation axle 25, greatly
Bevel gear 4 is installed on gear-bearing.
Preferably, loading mechanism include load oil pump 27, three-position four-way valve 28, dual hydraulic control one-way valve, load regulating valve 30,
Load out control valve 31 and hydraulic cylinder 32, three-position four-way valve 28 are adjusted for controlling load oil pump 27 to load regulating valve 30 or unloading
It saves valve 31 and pumps oil liquid, three-position four-way valve 28 is connected with load regulating valve 30 and load out control valve 31 respectively by dual hydraulic control one-way valve
It connects, loads regulating valve 30 or load out control valve 31 is connected to two oil pockets of hydraulic cylinder 32 respectively, the piston rod and cunning of hydraulic cylinder 32
The connection of boots positioning and clamping mechanism.
It loads oil pump 27 and exports high pressure oil, left position is arranged in three-position four-way valve 28 and is worked, high pressure oil is from left through double hydraulic control
The left side oil pocket for entering hydraulic cylinder 32 after check valve 29 and load regulating valve 30, releases the piston rod of hydraulic cylinder 32 to swash plate-
Piston shoes friction pair is loaded, and after on-load pressure reaches required pressure size, the setting of three-position four-way valve 28 is worked to middle position,
It can be tested, the right position of three-position four-way valve 28 is made to work when unloading power, high pressure oil is after the load outflow of oil pump 27 through 3-position 4-way
The right side oil pocket for entering hydraulic cylinder 32 after valve 28 and dual hydraulic control one-way valve 29, makes the piston rod of hydraulic cylinder 32 be moved to the left withdrawal and reaches
To the purpose for unloading power, the advantages of loading mechanism of the utility model, is to use dual hydraulic control one-way valve 29 as locking element, and three
Piston rod can lock for a long time on any position of stroke when four-way valve 28 is in middle position, will not due to outside cause play.
One overflow valve can also be set in loading mechanism as safety valve.
Preferably, further include for detect 32 pairs of hydraulic cylinder application loading force size pressure sensor 33.
Preferably, driving mechanism includes motor 34, main shaft 35, shell 36, measure speed gears 37 and velocity sensor 38, master
Axis 35 is installed on shell 36, and motor 34 is connect with main shaft 35, and 37 fixing sleeve of measure speed gears is attached on main shaft 35, velocity sensor
38 corresponding measure speed gears 37 are arranged, and velocity sensor 38 is used to detect the revolving speed of measure speed gears 37.Since measure speed gears 37 are installed
In main shaft 35, therefore, 37 revolving speed of measure speed gears is equal to main shaft 35, and velocity sensor 38 can measure the revolving speed of main shaft 35, can use
In probing under different revolutions and revolving speed swash plate-secondary abrasion research of piston shoes friction.
Motor 34 drives the rotation of two swash plate support plates 13 by main shaft 35, and swash plate turns under the drive of two swash plate support plates 13
It is dynamic, and then swash plate-piston shoes friction pair is made to be rubbed repeatedly, swash plate angle regulating device is used to adjust swash plate when test carries out
Angle enables swash plate angle arbitrarily to adjust as needed, realizes and surveys to swash plate under different swash plate angles-secondary abrasion of piston shoes friction
Examination.
Swash plate angle method of adjustment: first unscrewing pre-determined bit bolt 42, keeps swash plate any in two swash plate support plates 13
Rotation after going to required angle, pre-determined bit bolt 42 is tightened, two studdles 15, two studdles, 15 tail end are then adjusted
Swash plate is withstood to keep swash plate tilt angle fixed；
Piston shoes are pressed to swash plate by the loading mechanism, for adjusting piston shoes to the stress condition of swash plate, probe into different stress
In the case of the secondary abrasion condition of swash plate-piston shoes friction, the method for controlling loading force: load oil pump 27 exports high pressure oil, three four
Port valve 28 is adjusted to the oil pocket fuel feeding to 32 pushing piston-rod of hydraulic cylinder, and piston rod release is loaded, when reaching required load
After power size, adjustment three-position four-way valve 28 arrive state of pressure keeping, can be tested, removal or reduce plus cut power when make 3-position 4-way
Valve is adjusted to withdraw the oil pocket fuel feeding of piston rod to hydraulic cylinder 32, withdraws the piston rod of hydraulic cylinder 32, reaches removal or reduction
The advantages of purpose of loading force, loading mechanism, is to use dual hydraulic control one-way valve as locking element, and three-position four-way valve 28 can be
Locked for a long time on any position of piston rod stroke, will not due to outside cause play.
The piston shoes positioning clamping machine is used to adjust the relative position of two piston shoes and is clamped fixation to it, to probe into
Influence of the different piston shoes radiuss of turn to friction probes into the plunger distribution radius of different axial plunger pumps to swash plate-cunning
The influence of the secondary abrasion condition of boots friction, gives actual condition to provide reference, the method for adjusting piston shoes rotating diameter: passing through and rotate handwheel
It drives cone pinion 5 to rotate and then large bevel gear 4 is driven to rotate, by the characteristic of spiral of Archimedes, large bevel gear 4 is driven
Two locating pieces 1 are moved up and down simultaneously along two guide grooves 24 respectively, are positioned to cylinder 8, are adjusted straight to rotation needed for test
After diameter, gripping block 3 is installed on fixed shell 2 to clamp cylinder 8, adjustment bolt 26 is tightened.
The lubricating arrangement is used to lubricate the lubrication that swash plate-piston shoes rub between pair and adjustment supply swash plate-piston shoes friction pair
Oil pressure, lubrication swash plate-secondary method of piston shoes friction and the method for changing lubricating oil pressure: oil liquid is pumped into oilhole by oil pump 18
19, oil liquid enters after oilhole 19 by sending oily channel 21 to enter through-hole 20 to be lubricated to piston shoes rubbing surface 12, makes tiltedly
Disk-piston shoes friction pair is lubricated, and throttle valve 22 is used to adjust the pressure of oil liquid, can probe under different oil pressure, swash plate-cunning
The secondary abrasion condition variation of boots friction.
Tilt angle, the swash plate-secondary revolving speed revolution of piston shoes friction, loading force, piston shoes rotating diameter, lubrication when detection swash plate
When more than one or two of oil quality and lubricating oil pressure frictional influence factor, detected friction shadow will be related to
The factor of sound keeps identical accurately to obtain the required frictional influence factor detected to swash plate-piston shoes friction pair in contrast test
It influences.Such as: when testing influence of the loading force to abrasion loss, tilt angle, the swash plate-of swash plate are kept in the test of front and back
The secondary revolving speed revolution of piston shoes friction, piston shoes rotating diameter, lubricating oil quality and lubricating oil pressure are consistent.
Specific test process: being actuated for testing, swash plate rotation, since there are certain angles for swash plate, with the rotation of swash plate
Turn, plunger does piston motion in cylinder 8, due to the effect of the spring 10 in cylinder 8, remains swash plate with piston shoes and contacts
State the, at this point, swash plate-secondary friction, that is, sustainable progress of piston shoes friction, Therapy lasted is until setting time when swash plate rotation
After stop；
Experiment is compared, the swash plate more renewed and two piston shoes, what is compared if necessary is different loading forces, then
Loading mechanism changes the contact pressure (loading force) between piston shoes and swash plate, other frictional influence factors remain unchanged, then into
Row test, until setting time；
The abrasion condition of comparison front and back swash plate and piston shoes several times, to obtain loading force to swash plate-secondary abrasion of piston shoes friction
The influence of amount and wear mechanism；Testing time can be twice, three times or more, this can flexible setting as needed.
For the utility model other than it can test loading force to the influence of abrasion loss, the utility model is also provided with multiple influences
The frictional influence factor of test result is for being tested, when test one of them or two or more frictional influence factors are to abrasion
It when the influence of amount, only need to guarantee that other frictional influence factors are constant, and only change studied frictional influence factor, then can obtain it
To the influence of swash plate-piston shoes friction secondary abrasion loss and wear mechanism.
It is a kind of to test axial columns using any of the above-described axial plunger pump swash plate-secondary abrasion testing device of piston shoes friction
The method of the secondary abrasion of plug pump swash plate-piston shoes friction, including it is different swash plate tilt angles, different rotating speeds, different loading forces, different sliding
Tests more than at least one or two in boots rotating diameter, different oils quality and different oils pressure is to swash plate-
The influence of the secondary abrasion of piston shoes friction；
Different swash plate tilt angles are tested to swash plate-piston shoes friction secondary abrasion influence；
It pushes swash plate to rotate in the circular groove 16 of swash plate support plate 13, when swash plate reaches the tilt angle of setting, turns
Two studdles 15 act against two studdles 15 on swash plate and fix to swash plate is maintained under the tilt angle of setting
Come, starting axial plunger pump swash plate-secondary abrasion testing device of piston shoes friction is tested, and when reaching setting stop condition, is stopped
Only axial plunger pump swash plate-secondary abrasion testing device of piston shoes friction；
After replacing piston shoes and swash plate and adjusting swash plate to another setting tilt angle, two studdles 15 are turned, thus will
Swash plate is fixedly connected, and starting axial plunger pump swash plate-secondary abrasion testing device of piston shoes friction is tested, and is set when reaching
When stop condition, stop axial plunger pump swash plate-secondary abrasion testing device of piston shoes friction；
The piston shoes of each test are compared to obtain swash plate tilt angle to swash plate-piston shoes friction secondary abrasion influence；
Different rotating speeds are tested to swash plate-piston shoes friction secondary abrasion influence；
Starting driving mechanism makes swash plate carry out friction testing with piston shoes under the revolving speed of setting, when reaching setting stop condition
When, stop axial plunger pump swash plate-secondary abrasion testing device of piston shoes friction；
It replaces piston shoes and swash plate and adjusting driving mechanism makes swash plate carry out friction testing with piston shoes under another setting speed,
When reaching setting stop condition, stop axial plunger pump swash plate-secondary abrasion testing device of piston shoes friction；
The piston shoes of each test are compared to obtain swash plate revolving speed to swash plate-piston shoes friction secondary abrasion influence；
Different loading forces are tested to swash plate-piston shoes friction secondary abrasion influence；
The hydraulic cylinder 32 of loading mechanism pushes piston shoes positioning and clamping mechanism to increase the pressure between piston shoes and swash plate, when
When being applied to setup pressure value, starting axial plunger pump swash plate-secondary abrasion testing device of piston shoes friction is tested, and is set when reaching
When determining stop condition, stop axial plunger pump swash plate-secondary abrasion testing device of piston shoes friction；
The thrust that 32 pairs of hydraulic cylinder promotion piston shoes positioning and clamping mechanisms of loading mechanism are adjusted after replacement piston shoes and swash plate, from
And start axial plunger pump swash plate-piston shoes friction secondary abrasion when the pressure between piston shoes and swash plate being made to reach another setup pressure value
Test device is tested, and when reaching setting stop condition, stops the secondary wear testing dress of axial plunger pump swash plate-piston shoes friction
It sets；
The piston shoes of each test are compared to obtain loading force to swash plate-piston shoes friction secondary abrasion influence；
Different piston shoes rotating diameters are tested to swash plate-piston shoes friction secondary abrasion influence；
It rotates cone pinion 5 and drives large bevel gear 4, large bevel gear 4 drives two relative movements of locating piece 1 or opposite to each other to shifting
The dynamic rotating diameter to two piston shoes of change on swash plate starts axial plunger pump swash plate-secondary mill of piston shoes friction to setting position
Damage test device is tested, and when reaching setting stop condition, stops axial plunger pump swash plate-secondary wear testing of piston shoes friction
Device；
Cone pinion 5 is rotated after replacing swash plate and two piston shoes, two locating pieces 1 relatively move or opposite to each other to mobile to adjust
Rotating diameter of whole two piston shoes on swash plate starts axial plunger pump swash plate-secondary abrasion of piston shoes friction and surveys to another setting position
Trial assembly, which is set, to be tested, and when reaching setting stop condition, stops the secondary wear testing dress of axial plunger pump swash plate-piston shoes friction
It sets；
The piston shoes of each test are compared to obtain piston shoes rotating diameter to swash plate-piston shoes friction secondary abrasion influence；
Different oils quality is tested to swash plate-piston shoes friction secondary abrasion influence；
Apply lubricating oil on rubbing surface 12 between swash plate and piston shoes, starting axial plunger pump swash plate-piston shoes friction is secondary
Abrasion testing device is tested, and when reaching setting stop condition, is stopped axial plunger pump swash plate-secondary abrasion of piston shoes friction and is surveyed
Trial assembly is set；
After the lubricating oil and replacement piston shoes of replacing piston shoes, swash plate and another quality, lubricating arrangement is between swash plate and piston shoes
Rubbing surface 12 on apply the lubricating oil of another quality, starting axial plunger pump swash plate-piston shoes rub secondary wear testing dress
It sets and is tested, when reaching setting stop condition, stop axial plunger pump swash plate-secondary abrasion testing device of piston shoes friction；
The piston shoes of each test are compared to obtain lubricating oil product confrontation swash plate-piston shoes friction secondary abrasion influence；
Different oils pressure is tested to swash plate-piston shoes friction secondary abrasion influence；
Lubricating arrangement provides the lubricating oil of setting pressure on the rubbing surface 12 between swash plate and piston shoes, start axial plunger
Pump swash plate-secondary abrasion testing device of piston shoes friction is tested, and when reaching setting stop condition, it is oblique to stop axial plunger pump
Disk-secondary the abrasion testing device of piston shoes friction；
Piston shoes and swash plate are replaced, lubricating arrangement provides another setting pressure on the rubbing surface 12 between swash plate and piston shoes
Lubricating oil, the starting axial plunger pump swash plate-piston shoes secondary abrasion testing device that rubs are tested, when reaching setting stop condition
When, stop axial plunger pump swash plate-secondary abrasion testing device of piston shoes friction；
The piston shoes of each test are compared to obtain different oils pressure to swash plate-piston shoes friction secondary abrasion influence.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above-mentioned
The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing
In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.
Claims (9)
- The secondary abrasion testing device 1. a kind of axial plunger pump swash plate-piston shoes rub, characterized by comprising: loading mechanism, driving Mechanism, swash plate angle regulating device and piston shoes positioning and clamping mechanism, loading mechanism are connect with piston shoes positioning and clamping mechanism, swash plate Angle adjustment device is installed in driving mechanism, and piston shoes positioning and clamping mechanism includes bevel gear pair, locating piece, fixed shell, folder Tight block and plunger mechanism, bevel gear pair have the large bevel gear and cone pinion being meshed, open up on large bevel gear one side There is spiral of Archimedes groove, has the spiral of Archimedes being connected in spiral of Archimedes groove convex on locating piece Block is fixed on shell and offers adjustment conduit, and adjustment conduit is packed into for the gripping block and gripping block can be moved along adjustment conduit To adjust the fixation position of gripping block, locating piece is oppositely arranged with gripping block, is formed between locating piece and gripping block and is used for clamping The clamping section of the plunger mechanism, plunger mechanism include cylinder, plunger and spring, and the cylinder is clamped in clamping section In, plunger and spring are set in cylinder, and spring is located at plunger described in cylinder body bottom pushing tow, and piston shoes are installed on plunger and stretch out in cylinder It is in contact on the end of body and with inclined panel test face；The swash plate angle regulating device includes swash plate support plate, driving plate and studdle, swash plate support plate and support spiral shell Bar is two, and two swash plate support plates are oppositely arranged on swash plate two sides, and two swash plate support plates offer circular groove on opposite side, tiltedly There is the swash plate respectively with the circular groove cooperation in two swash plate support plates and the opposite circular groove sliding of energy to support cambered surface, two swash plates for disk two sides Support plate is fixedly attached in driving plate, and driving plate corresponds to swash plate radially opposite sides and offers adjusting screw hole, two studdles difference It is in contact across two adjusting screw holes with swash plate to fix the inclined angle of swash plate.
- The secondary abrasion testing device 2. axial plunger pump swash plate according to claim 1-piston shoes rub, which is characterized in that also Lubricating arrangement including applying from lubricating oil to piston shoes rubbing surface, lubricating arrangement includes oil pump, and cylinder offers oilhole, opens on piston shoes Equipped with the through-hole for being connected to piston shoes rubbing surface, is offered on plunger and send oily channel, sent oily channel outlet to be connected to through-hole, send oily channel Oil inlet is connected to oilhole, and oil pump is connected to oilhole.
- The secondary abrasion testing device 3. axial plunger pump swash plate according to claim 2-piston shoes rub, which is characterized in that profit Sliding device further includes the throttle valve for adjusting lubricating oil oil pressure and the pressure gauge for detecting lubricating oil oil pressure, and oil pump passes through section Stream valve is connected to oilhole.
- The secondary abrasion testing device 4. axial plunger pump swash plate according to claim 1-piston shoes rub, which is characterized in that fixed Position block is two with gripping block and is arranged in a one-to-one correspondence, and plunger mechanism is two, and it is fixed that two plunger mechanisms are clamped to two respectively In the clamping section that position block and gripping block are formed；Annular link slot is offered on cylinder, and there is the lug boss that can cooperate with annular link slot on locating piece and gripping block.
- The secondary abrasion testing device 5. axial plunger pump swash plate according to claim 4-piston shoes rub, which is characterized in that Gu It is radially opened up on fixed shell there are two guide groove, two locating pieces are stretched out from guide groove, and fixed housing central section is extended with bearing peace Axis is filled, further includes gear-bearing, gear-bearing is installed in bearing installation axle, and large bevel gear is installed on gear-bearing.
- The secondary abrasion testing device 6. axial plunger pump swash plate according to claim 1-piston shoes rub, which is characterized in that institute Stating gripping block includes adjustment bolt and L-shaped fixture block, and adjustment bolt is connected in adjustment conduit after passing through fixture block.
- The secondary abrasion testing device 7. axial plunger pump swash plate according to claim 1-piston shoes rub, which is characterized in that add Mounted mechanism includes loading oil pump, three-position four-way valve, dual hydraulic control one-way valve, load regulating valve, load out control valve and hydraulic cylinder, and three Position four-way valve pumps oil liquid to load regulating valve or load out control valve for controlling load oil pump, and three-position four-way valve passes through double hydraulic control Check valve is connect with load regulating valve and load out control valve respectively, loads two of regulating valve or load out control valve respectively with hydraulic cylinder Oil pocket connection, the piston rod of hydraulic cylinder are connect with piston shoes positioning and clamping mechanism；It further include adding for detecting hydraulic cylinder to application Carry the pressure sensor of power size.
- The secondary abrasion testing device 8. axial plunger pump swash plate according to claim 1-piston shoes rub, which is characterized in that tiltedly Disk angle adjustment device further includes pre-determined bit bolt, and swash plate support plate has positioning arc slot, and pre-determined bit bolt passes through positioning arc slot It is connected on swash plate；The position that piston shoes are connect with plunger offers spherical groove, and the end that plunger and piston shoes cooperate is spherical end, spherical end It is cooperated in spherical groove.
- The secondary abrasion testing device 9. axial plunger pump swash plate according to claim 1-piston shoes rub, which is characterized in that drive Motivation structure includes motor, main shaft, shell, measure speed gears and velocity sensor, and main shaft is installed on shell, and motor and main shaft connect It connects, measure speed gears fixing sleeve is attached on main shaft, and velocity sensor corresponds to measure speed gears setting, and velocity sensor is for testing the speed The revolving speed of gear.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821418201.3U CN208858548U (en) | 2018-08-30 | 2018-08-30 | Axial plunger pump swash plate-secondary the abrasion testing device of piston shoes friction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821418201.3U CN208858548U (en) | 2018-08-30 | 2018-08-30 | Axial plunger pump swash plate-secondary the abrasion testing device of piston shoes friction |
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| CN208858548U true CN208858548U (en) | 2019-05-14 |
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| CN201821418201.3U Expired - Fee Related CN208858548U (en) | 2018-08-30 | 2018-08-30 | Axial plunger pump swash plate-secondary the abrasion testing device of piston shoes friction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026650A (en) * | 2018-08-30 | 2018-12-18 | 华南理工大学 | Axial plunger pump swash plate-secondary abrasion testing device of piston shoes friction and its test method |
| CN110455506A (en) * | 2019-07-19 | 2019-11-15 | 北京航空航天大学 | A kind of high pressure servo plunger pump key rubs secondary comprehensive test system and control method |
-
2018
- 2018-08-30 CN CN201821418201.3U patent/CN208858548U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026650A (en) * | 2018-08-30 | 2018-12-18 | 华南理工大学 | Axial plunger pump swash plate-secondary abrasion testing device of piston shoes friction and its test method |
| CN109026650B (en) * | 2018-08-30 | 2023-11-10 | 华南理工大学 | Axial plunger pump swash plate-sliding shoe friction pair abrasion testing device and testing method thereof |
| CN110455506A (en) * | 2019-07-19 | 2019-11-15 | 北京航空航天大学 | A kind of high pressure servo plunger pump key rubs secondary comprehensive test system and control method |
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Granted publication date: 20190514 Termination date: 20190830 |