CN103592123A - Shaft sleeve abrasion testing system - Google Patents
Shaft sleeve abrasion testing system Download PDFInfo
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- CN103592123A CN103592123A CN201310528560.XA CN201310528560A CN103592123A CN 103592123 A CN103592123 A CN 103592123A CN 201310528560 A CN201310528560 A CN 201310528560A CN 103592123 A CN103592123 A CN 103592123A
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Abstract
The invention discloses a shaft sleeve abrasion testing system. The shaft sleeve abrasion testing system comprises a working platform, a first installation base, a second installation base, a fourth installation base, a drive oil cylinder, a load oil cylinder, a first connection rod and a hydraulic system, wherein the first installation base, the second installation base and the fourth installation base are installed on the working platform; the first end of the drive oil cylinder is hinged to the first installation base through a first hinge point; the second end of the drive oil cylinder is hinged to the first end of the first connection rod through a second hinge point; the second end of the first connection rod is hinged to the second installation base through a third hinge point; the first end of the load oil cylinder is hinged to the fourth installation base through a sixth hinge point; the second end of the load oil cylinder is connected to the first end of the first connection rod; the hinge points are located on the same plane; each hinged position is provided with a shaft sleeve and a pin shaft; the hydraulic system is used for supplying hydraulic oil for the stretching of the drive oil cylinder and the stretching of the load oil cylinder. The shaft sleeve abrasion testing system can simulate the abrasion condition of the shaft sleeves under the actual working condition, and improve the testing efficiency.
Description
Technical field
The present invention relates to axle sleeve wear testing field, particularly a kind of axle sleeve wear test system that can be used for engineering machinery.
Background technology
At present, in engineering machinery, extensively adopt hinged pair to realize connection between parts and the transmission of power.Hinged secondary adopt axle sleeve and bearing pin coordinate to realize corresponding function.In actual use, axle sleeve wearing and tearing or choose the improper problems such as altering position that easily causes because of axle sleeve tolerance, thus cause equipment to move in spite of wound, affect efficiency and security performance.
Existing research shows, these problems are relevant with the factors such as gap of the magnitude of interference, inner hole of shaft sleeve and the bearing pin of the material of axle sleeve, the version of axle sleeve (being mainly lubricated form), lubricating condition, axle sleeve external diameter and datum hole.Therefore, need to be on the above-mentioned various factors research experiment that affects axle sleeve wearing and tearing.
Before this, relevant enterprise or insider have carried out some at this point and have explored, and have made some progress, and for example, Japanese documentation JP2005106479 has proposed a kind of for studying the test unit of axle sleeve and bearing pin wearing and tearing.
Yet all there are the following problems to comprise the various prior aries of above-mentioned example: one, the given environment of wear test and condition and actual applying working condition differ greatly, even if can be on affecting some factor research experiment of axle sleeve wearing and tearing, yet because simulating the actual applying working condition of axle sleeve, still problem is continuous when reality is used for the axle sleeve by testing requirements; Two, only can carry out battery of tests, efficiency is lower at every turn, and cannot carry out contrast test simultaneously; Three, function singleness, generally tests for certain material of axle sleeve.
Therefore, how for existing axle sleeve wear test mode, improving, is those skilled in the art's technical matterss urgently to be resolved hurrily.
Summary of the invention
In view of this, the present invention aims to provide a kind of axle sleeve wear test system, to can simulate the wear condition of axle sleeve under actual condition, improves test efficiency.
Particularly, this axle sleeve wear test system comprises workbench, the first mount pad, the second mount pad, the 4th mount pad, drives oil cylinder, load oil cylinder, first connecting rod and hydraulic system, wherein: described the first mount pad, described the second mount pad and described the 4th mount pad are installed on described workbench; The first end of described driving oil cylinder and described the first mount pad are hinged by the first hinge, the second end of described driving oil cylinder and the first end of described first connecting rod are hinged by the second hinge, the second end of described first connecting rod and described the second mount pad are hinged by tri-joint mechanism, the first end of described load oil cylinder and described the 4th mount pad are hinged by the 6th hinge, and the second end of described load oil cylinder is connected in the first end of described first connecting rod; Each hinge is positioned at same plane, and each hinged place is provided with axle sleeve and bearing pin; The flexible hydraulic oil that provides of the flexible and described load oil cylinder of described driving oil cylinder is provided described hydraulic system.
Alternatively, described axle sleeve wear test system also comprises the 3rd mount pad, second connecting rod and third connecting rod, wherein: described the 3rd mount pad is installed on described workbench; The first end of described second connecting rod and the first end of described first connecting rod are hinged by described the first hinge, the second end of the first end of the second end of described second connecting rod, described third connecting rod and described load oil cylinder is hinged by the 4th hinge, and the second end of described third connecting rod and described the 3rd mount pad are hinged by the 5th hinge; Each hinge is positioned at same plane, and each hinged place is provided with axle sleeve and bearing pin.
The position relationship of three hinges that form between bucket cylinder, rocking bar and dipper on the position relationship of described the first hinge, described the second hinge and described tri-joint mechanism and excavator alternatively, matches.
The position relationship of three hinges that form between bucket arm cylinder, dipper and swing arm on the position relationship of described the first hinge, described the second hinge and described tri-joint mechanism and excavator alternatively, matches.
The position relationship of three hinges that form between swing arm, upper body and boom cylinder on the position relationship of described the first hinge, described the second hinge and described tri-joint mechanism and excavator alternatively, matches.
Alternatively, five hinges that dipper on the position relationship of described the first hinge, described the second hinge, described tri-joint mechanism, described the 4th hinge, described the 5th hinge and described the 6th hinge and excavator, bucket arm cylinder, rocking bar, pull bar and scraper bowl form and the position relationship of scraper bowl crown match.
Alternatively, the position relationship of the position relationship of described the first hinge, described the second hinge and described tri-joint mechanism and described the 6th hinge, described the 4th hinge and described the 5th hinge is arranged symmetrically.
Alternatively, each mount pad includes base plate and is arranged at the pedestal on this base plate, and the bottom of described workbench is provided with guide-track groove, between described base plate and described guide-track groove, is bolted.
Alternatively, described hydraulic system comprises fuel tank, driving pump, reversal valve, slippage pump, the first retaining valve and the second retaining valve, wherein:
The oil-in of described driving pump is connected to described fuel tank, the oil-out of described driving pump is connected to the oil-in of described reversal valve, the oil return opening of described reversal valve is connected to fuel tank, and two actuator ports of described reversal valve are connected to respectively rod chamber and the rodless cavity of described driving oil cylinder;
The oil-in of described slippage pump is connected to fuel tank, the oil-out of described slippage pump is connected to the oil-in of described the first retaining valve and the oil-in of described the second retaining valve, and the oil-out of the oil-out of described the first retaining valve and described the second retaining valve is connected to respectively rodless cavity and the rod chamber of described load oil cylinder.
Alternatively, described axle sleeve wear test system also comprises electric-control system, and described electric-control system comprises controller, the first motor and the second motor, wherein: described the first motor is used for driving described driving pump; Described the second motor is used for driving slippage pump; Described controller receives the pressure information from the rod chamber of described load oil cylinder and rodless cavity, described reversal valve, described driving pump, described load pump, and according to default control strategy, controls rotating speed and the power of described the first motor and described the second motor.
While adopting axle sleeve wear test system of the present invention, can be according to the needs of experimental study, the factor that magnitude of interference of the tolerance clearance of version, lubricating condition, axle sleeve and bearing pin, axle sleeve and datum hole etc. is affected to polishing machine is selected, relative position between each mount pad can be adjusted as required, the size of each connecting rod also test demand is as required replaced, drive the specification of oil cylinder and load oil cylinder also can change according to test demand, thereby the simulation test environment of axle sleeve and bearing pin and condition and actual condition are matched; Further, under the effect of hydraulic system, drive oil cylinder and load oil cylinder also can make axle sleeve and bearing pin be subject to driving force and the resistance of motion matching with actual condition.In addition, this axle sleeve wear test system relates to a plurality of hinges, thereby can to many groups axle sleeve and bearing pin, test simultaneously, has improved like this test efficiency, is also convenient to draw the correlativitys of organizing the wear condition of axle sleeves and bearing pin more.
In a kind of optional scheme, axle sleeve wear test system of the present invention comprises three connecting rods and four mount pads, and be formed with six hinges, thereby formation six bar mechanism, consider axle sleeve and the bearing pin common set-up mode in engineering machinery, can draw, this scheme can make the more realistic operating mode of the experimental enviroment of bearing pin and axle sleeve.
In a kind of optional scheme, as a kind of concrete application, in axle sleeve wear test system of the present invention, the position relationship of three hinges that form between bucket cylinder, rocking bar and dipper on the position relationship of the first hinge, the second hinge and tri-joint mechanism and excavator matches, the actual wear operating mode of each hinge place axle sleeve and bearing pin in the time of can simulating like this power shovel action.
In a kind of optional scheme, as a kind of concrete application, in axle sleeve wear test system of the present invention, the position relationship of three hinges that form between bucket arm cylinder, dipper and swing arm on the position relationship of the first hinge, the second hinge and tri-joint mechanism and excavator matches, the actual wear operating mode of each hinge place axle sleeve and bearing pin in the time of can simulating like this excavator boom action.
In a kind of optional scheme, as a kind of concrete application, in axle sleeve wear test system of the present invention, the position relationship of three hinges that form between swing arm, upper body and boom cylinder on the position relationship of the first hinge, the second hinge and tri-joint mechanism and excavator matches, the actual wear operating mode of each hinge place axle sleeve and bearing pin in the time of can simulating like this excavator swing arm action.
In a kind of optional scheme, as a kind of concrete application, in axle sleeve wear test system of the present invention, five hinges that dipper on the position relationship of the first hinge, the second hinge, tri-joint mechanism, the 4th hinge, the 5th hinge and the 6th hinge and excavator, bucket arm cylinder, rocking bar, pull bar and scraper bowl form and the position relationship of scraper bowl crown match, the actual wear operating mode of its each hinge in the time of can simulating like this digger operating device work.
In a kind of optional scheme, as a kind of concrete application, in axle sleeve wear test of the present invention, the position relationship of the position relationship of the first hinge, the second hinge and tri-joint mechanism and the 6th hinge, the 4th hinge and the 5th hinge is arranged symmetrically, be convenient to like this carry out the contrast test of new, old axle sleeve (bearing pin) simultaneously, or dissimilar axle sleeve is carried out to contrast test simultaneously, use flexibly, efficiency is high.
In a kind of optional scheme, each mount pad can be fixed at the diverse location of workbench guide-track groove, to realize the adjustment of each mount pad relative position, so that Fast simulation actual condition.
In a kind of optional scheme, hydraulic system at least comprises fuel tank, driving pump, reversal valve, slippage pump, the first retaining valve and the second retaining valve, by driving pump for driving oil cylinder that the required fluid that initiatively stretches is provided, and by slippage pump for load pump provides passive flexible required fluid, can make so the more realistic operating mode of experimental enviroment of bearing pin and axle sleeve.
In a kind of optional scheme, axle sleeve wear test system also comprises electric-control system, so that according to the rod chamber of load oil cylinder and rodless cavity, reversal valve, driving pump, the pressure information of load pump and default control strategy, realizes test action and automatically controls.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
The principle schematic of a kind of axle sleeve wear test system that Fig. 1 provides for the embodiment of the present invention shows mechanical system, hydraulic system and electric-control system simultaneously in figure;
Fig. 2 is the structural representation of the first mount pad 1 under K direction in Fig. 1;
Fig. 3 be in Fig. 1 G-G to diagrammatic cross-section;
Fig. 4 be in Fig. 1 H-H to diagrammatic cross-section;
Fig. 5 is the schematic diagram of the first implementation of mechanical system of the wear test system of the embodiment of the present invention;
Fig. 6 is the composition structural representation of power shovel, pull bar, rocking bar, bucket cylinder and dipper;
Fig. 7 is the composition structural representation of excavator boom, bucket arm cylinder and swing arm;
Fig. 8 is the schematic diagram of the second implementation of mechanical system of the wear test system of the embodiment of the present invention;
Fig. 9 is the composition structural representation of excavator swing arm, upper body and boom cylinder;
Figure 10 is the schematic diagram of the third implementation of mechanical system of the wear test system of the embodiment of the present invention;
Figure 11 is the composition structural representation of power shovel, pull bar, rocking bar, bucket cylinder and dipper.
Embodiment
It should be pointed out that in this part to be only the explanation to specific embodiment to the description of concrete structure and description order, should not be considered as that protection scope of the present invention is had to any restriction.In addition,, under the situation of not conflicting, embodiment and the feature in embodiment in this part can combine mutually.
Please refer to Fig. 1 to Figure 11, below in conjunction with accompanying drawing, the embodiment of the present invention and numerous embodiments are elaborated.
Refer to Fig. 1, and in conjunction with shown in Fig. 2, the axle sleeve wear test system of the embodiment of the present invention consists of mechanical system, hydraulic system, the large subsystem of electric-control system three.
Mechanical system comprises workbench 10, the first mount pad 1, the second mount pad 2, the 3rd mount pad 3, the 4th mount pad 4, drives oil cylinder 5, load oil cylinder 6, first connecting rod 7, second connecting rod 8, third connecting rod 9, multipair axle sleeve and bearing pin.
Wherein, workbench 10 is fixed with ground, as the foundation of whole pilot system, the first mount pad 1, the second mount pad 2, the 3rd mount pad 3, the 4th mount pad 4 is installed on workbench 10 at intervals, drive first end and first mount pad 1 of oil cylinder 5 hinged by the first hinge A, drive the second end of oil cylinder 5, the first end of the first end of first connecting rod 7 and second connecting rod 8 is hinged by the second hinge B, the second end of first connecting rod 7 and the second mount pad 2 are hinged by tri-joint mechanism C, the second end of second connecting rod 8, the second end of the first end of third connecting rod 9 and load oil cylinder 6 is hinged by the 4th hinge D, the second end of third connecting rod 9 and the 3rd mount pad 3 are hinged by the 5th hinge E, the first end of load oil cylinder 6 and the 4th mount pad 4 are hinged by the 6th hinge F, each hinge is positioned at same plane, between workbench 10, driving oil cylinder 5, load oil cylinder 6, first connecting rod 7, second connecting rod 8 and third connecting rod 9, form six bar mechanism, and each hinged place is provided with corresponding axle sleeve and bearing pin.
Hydraulic system at least comprises fuel tank 20, driving pump 21, slippage pump 22, reversal valve 23, the first retaining valve 27 and the second retaining valve 28.Wherein, the inlet port of driving pump 21 is connected to fuel tank 20, and oil-out (passing through retaining valve) is connected to the oil-in of reversal valve 23, and two actuator ports of reversal valve 23 are connected to respectively rod chamber and the rodless cavity that drives oil cylinder 5; The inlet port of slippage pump 22 is connected to fuel tank 20, and oil-out is connected to the oil-in of the first retaining valve 27 and the oil-in of the second retaining valve 28, and the oil-out of the oil-out of the first retaining valve 27 and the second retaining valve 28 is connected to rodless cavity and the rod chamber of load oil cylinder 6.
Electric-control system comprises controller 30, the first motor 31 and the second motor 32, wherein: the power output shaft of the first motor 31 drives and is connected with the rotating shaft of driving pump 5, the power output shaft of the second motor 32 drives and is connected with the rotating shaft of slippage pump 22, controller 30 receives the pressure information from the rod chamber of load oil cylinder 6 and rodless cavity, reversal valve 23, driving pump 5, load pump 6, and according to default control strategy, controls rotating speed and the power of the first motor 31 and the second motor 32, this control strategy can need to preset according to actual tests, for example, control strategy can be following form: in order to simulate the actual scene of axle sleeve wear test, if the load acting force that controller 30 provides according to the pressure feedback judgement load oil cylinder 6 from load oil cylinder 6 is during with actual conforming to, and when the activation force that controller 30 drives oil cylinder 5 to provide according to the pressure feedback judgement from reversal valve 23 does not reach virtual condition, now, controller 30 is controlled the first motor 31 and is increased speed, thereby make to drive the activation force of oil cylinder 5 to increase, and control the second motor 32 and be stabilized under certain rotating speed, make load oil cylinder maintain the current state that approaches physical condition.
In use, the axle sleeve (bearing pin) at one or two the above hinge places in A, B, C, D, E, F all can be used as subjects, the magnitude of interference factor of the tolerance clearance of the version of each axle sleeve, lubricating condition, axle sleeve and bearing pin, axle sleeve and datum hole etc. can be determined according to the target of experimental study, the relative installation of each mount pad also can be adjusted as required, the size of each connecting rod (as length) also can be replaced according to test demand, drives the specification of oil cylinder 3 and load oil cylinder 9 also can be changed according to test demand.
In process of the test, controller 30 is controlled rotating speed and the power of the first motor 31 and the second motor 32 as required, the first motor 31 provides driving source to driving pump, pressure oil arrives rod chamber or the rodless cavity that drives oil cylinder 5 after driving pump 21, reversal valve 23, thereby realizes piston rod predecessor or the retraction that drives oil cylinder 5.The reversal valve 23 shown in Fig. 1 of take is example, when reversal valve 23 is in left when position, pressure oil enters the rodless cavity that drives oil cylinder 5, drive the piston rod of oil cylinder 5 to protract, first connecting rod 7 is rotated counterclockwise around hinge C, under the drive of first connecting rod 7, thereby second connecting rod 8 is moved to the left promotion, third connecting rod 9 rotates counterclockwise around hinge E, under the driving of third connecting rod 9, the piston rod of load oil cylinder 6 has the trend of retraction, when the rod chamber pressure drop of load oil cylinder 6 is to a certain extent time, the second retaining valve 28 on supply oil circuit is opened, replenishment pump 22 supplements hydraulic oil to the rod chamber of load oil cylinder 6, to maintain the easy motion of the piston rod of load oil cylinder 6, or simulation applies the resistance of motion suiting the requirements to pilot system, the above course of work is counterclockwise operation cycle.Otherwise when reversal valve 23 is operated in right position, pressure oil enters the rod chamber that drives oil cylinder 5, the running principle of all the other each parts is to above-mentioned similar, but rotation direction is clockwise; This course of work is clockwise operation cycle.Operation cycle and clockwise operation cycle hocket counterclockwise, make whole test unit continuous operation.In test unit operation process, axle sleeve and the bearing pin at each hinge place relatively rotate, and the wear test environment of axle sleeve can match with actual condition, adapt or be corresponding like this.
In order to further illustrate above-mentioned axle sleeve wear test system, how to match with actual condition, below in conjunction with multiple concrete scene, be illustrated.
One, for rocking bar 53 on the excavator shown in Test Drawing 6, three hinge a that form between bucket cylinder 54 and dipper 55, b, the axle sleeve abrasion condition at c place, can make the hinge A of axle sleeve wear test system, B, the position relationship of C and the hinge a shown in Fig. 6, b, the position relationship of c match (situation as shown in Figure 5), even hinge A, B, the shape forming between C and hinge a, b, the shape similar (or substantially identical) forming between c, this can be by adjusting the interval of the first mount pad 1 and the second mount pad 2, select the first connecting rod 7 of suitable dimension and select the driving oil cylinder 5 of appropriate size and load oil cylinder 6 to realize, certainly, for more realistic operating mode, can make to drive the specification of oil cylinder 5 identical with the specification of bucket cylinder 54, and the load acting force that load acting force that load oil cylinder 6 provides and scraper bowl practical work process are produced match (this can be by obtaining the load curve of the scraper bowl course of work, and the load acting force that controller control load oil cylinder 6 is produced matches with it).
Like this, by control, drive oil cylinder 5 back and forth flexible, the actual wear operating mode of hinge a, b, c place axle sleeve in the time of can simulating scraper bowl (oil cylinder) action.
Two, correspondingly, for three hinge a, b that form between bucket arm cylinder 56, swing arm 57 and dipper 55 on the excavator shown in Test Drawing 7, the axle sleeve abrasion condition at c place, can make hinge A, the B of axle sleeve wear test system, the position relationship of C and hinge a, the b shown in Fig. 7, the position relationship of c match, and make to drive the specification of oil cylinder 5 identical with the specification of bucket arm cylinder 56, by control, drive oil cylinder 5 back and forth flexible like this, the actual wear operating mode of its hinge a, b, c place axle sleeve in the time of can simulating bucket arm cylinder 56 action.
Three, correspondingly, for three hinge a, b that form between swing arm 57, upper body 58 and boom cylinder 59 on the excavator shown in Test Drawing 9, the axle sleeve abrasion condition at c place, can make hinge A, the B of axle sleeve wear test system, the position relationship of C and hinge a, the b shown in Fig. 9, the position relationship of c match, and make to drive the specification of oil cylinder 5 identical with the specification of boom cylinder 59, by control, drive oil cylinder 5 back and forth flexible like this, the actual wear operating mode of its hinge a, b, c place axle sleeve in the time of can simulating boom cylinder 59 action.
Four, correspondingly, in order to test scraper bowl 51 on the excavator shown in Figure 11, pull bar 52, rocking bar 53, bucket cylinder 54, three hinge a that form between dipper 55, b, c, d, the axle sleeve abrasion condition at e place, can make the hinge A of axle sleeve wear test system, B, C, D, E, the position relationship of F and the hinge a shown in Fig. 9, b, c, d, the position relationship of e and scraper bowl crown f match (situation as shown in figure 10), in order more to correspond to actual needs, can make to drive the specification of oil cylinder 5 identical with the specification of bucket cylinder 54, the size of second connecting rod 7 and the size of excavator upper connecting rod 52 are matched, the size of third connecting rod 8 and the distance between hinge up and down on scraper bowl 51 are matched, the size of load oil cylinder 6 and the upper hinge of scraper bowl are matched apart from the distance of scraper bowl crown f, etc., and the load acting force that load acting force that load oil cylinder 6 provides and scraper bowl practical work process are produced matches, by control, drive oil cylinder 5 back and forth flexible like this, the actual wear operating mode of its hinge a, b, c, d, e place axle sleeve in the time of can simulating bucket cylinder 59 action.
Five, in addition, new in order can to carry out simultaneously, the contrast test of old axle sleeve, or dissimilar axle sleeve is carried out to contrast test simultaneously, axle sleeve wear test system can adopt symmetrical structure, for example, with Fig. 5 with Figure 8 shows that example, can make hinge A, B, the position relationship of C and hinge F, D, the position relationship of E is and is symmetrically arranged, like this can be using a side (as right side) of symmetrical center line Z as new assembling side, new axle sleeve is all installed at each hinge place of new assembling side, the opposite side of symmetrical center line Z (as left side) is assembled to side as a comparison, old axle sleeve is all installed at each hinge place of contrast assembling side, after so arranging, can make the experimental enviroment of new and old axle sleeve substantially identical, thereby easily test out the polishing machine difference of new and old axle sleeve, the contrast test of dissimilar axle sleeve similarly, repeats no more.
It should be noted that, the various application modes of the axle sleeve wear test system of the embodiment of the present invention cannot be enumerated one by one, aforementioned four kinds of modes are that the hinge layout of simulating excavator describes, in the same way, the axle sleeve wear test system of the embodiment of the present invention also can be for the axle sleeve of simulation Other Engineering machinery the abrasion condition under actual condition.
In addition, in specific implementation process, the axle sleeve wear test system of the embodiment of the present invention can also be done following at least one optimization:
One, in conjunction with shown in Fig. 2, Fig. 3, each mount pad includes base plate 1001 and is arranged at the pedestal 1002 on base plate 1001, for the ease of realizing the position adjustments of each mount pad, can be provided with in the bottom of workbench 10 guide-track groove 101 extending along directions X (see figure 1), the base plate 1001 of each mount pad, and fixing by bolt 1003 between guide-track groove 101, like this when needs move, turn on bolt, make mount pad along guide-track groove 101, move to relevant position on workbench, then pass through bolted.
Two,, in order to realize the oscilaltion (along the Y-direction shown in Fig. 1) of each mount pad, can be the corresponding height adjustment mechanism of base plate 1001 configuration of each mount pad, or also can realize by increasing the thickness of base plate 1001.
Three, excessive and cause Hydraulic Elements such as driving oil cylinder 5 to damage for fear of the oil circuit pressure of drive part, can between the oil-out of driving pump 21 and fuel tank 20, the first surplus valve 24 be set; Correspondingly, excessive and cause relevant hydraulic pressure component wear for fear of the oil circuit pressure of repairing part, can between the oil-out of slippage pump 22 and fuel tank 20, the second surplus valve be set, the pressure required because of repairing oil circuit is lower, can make the opening pressure of the second surplus valve 29 be less than the first surplus valve 24; Correspondingly, for fear of load oil cylinder 6, damage because of overload, can be respectively between the rod chamber of load oil cylinder 6 and rodless cavity and fuel tank, the 3rd surplus valve 25 and the 4th surplus valve 26 be set respectively.
Four, for the ease of the factors such as the magnitude of interference of the tolerance clearance of the version of axle sleeve, lubricating condition, axle sleeve and bearing pin, axle sleeve and datum hole are tested, can be optimized the mounting means of axle sleeve, for example, take Fig. 2, Fig. 3 and and Fig. 4 shown in situation be example, hinge A place adopts the first axle sleeve 11 and the first bearing pin 12 to coordinate, and in the first axle sleeve 11 both sides, is also provided with the first seal member 121 being sheathed on the first bearing pin 12; Hinge B place adopts the second axle sleeve 13 to coordinate with the second bearing pin 14, wherein, everybody of the second axle sleeve 13 is two, is arranged in respectively the both sides that drive oil cylinder 5 second ends, and the both sides of arbitrary the second axle sleeve 13 are provided with the second seal member 134 being sheathed on the second bearing pin 14.
It should be noted that, the axle sleeve wear test of above-described embodiment is formed with six bar mechanism, consider axle sleeve and the bearing pin common set-up mode in engineering machinery, this scheme can make the more realistic operating mode of the experimental enviroment of bearing pin and axle sleeve, but in other embodiments, also can omit second connecting rod 8, third connecting rod 9 and the 3rd mount pad 3, and by the first end of load oil cylinder 6 directly or indirectly (depending on test cases, need) to be connected in the first end of first connecting rod 7, so also can realize a plurality of hinges (as A, B, C etc.) axle sleeve wear test demand, for example, the axle sleeve wear test system of this form also can be applied to the hinge a shown in Fig. 6 and Fig. 7, b, the simulation test of c place axle sleeve.
It should be noted that, above-described embodiment has provided for controlling and has driven oil cylinder 5 and the hydraulic system of load oil cylinder 6 and the optimal way of electric-control system, but in other embodiments, also can according to test need to adopt other forms of hydraulic system and electric-control system, be not necessarily limited to the mode described in the embodiment of the present invention.
In sum, can draw, while adopting the axle sleeve wear test system of the embodiment of the present invention, can be according to the needs of experimental study, to version, lubricating condition, the tolerance clearance of axle sleeve and bearing pin, the magnitude of interference of axle sleeve and datum hole etc. affects the factor of polishing machine and selects, relative position between each mount pad can be adjusted as required, the size of each connecting rod also test demand is as required replaced, drive the specification of oil cylinder and load oil cylinder also can change according to test demand, thereby the simulation test environment of axle sleeve and bearing pin and condition and actual condition are matched, in addition, under the effect of hydraulic system, drive oil cylinder and load oil cylinder also can make axle sleeve and bearing pin be subject to driving force and the resistance of motion matching with actual condition, in addition, this axle sleeve wear test system relates to a plurality of hinges, thereby can to many groups axle sleeve and bearing pin, test simultaneously, has improved like this test efficiency, is also convenient to draw the correlativitys of organizing the wear condition of axle sleeves and bearing pin more.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. an axle sleeve wear test system, it is characterized in that, comprise workbench (10), the first mount pad (1), the second mount pad (2), the 4th mount pad (4), drive oil cylinder (5), load oil cylinder (6), first connecting rod (7) and hydraulic system, wherein:
Described the first mount pad (1), described the second mount pad (2) and described the 4th mount pad (4) are installed on described workbench (10);
The first end of described driving oil cylinder (5) and described the first mount pad (1) are hinged by the first hinge (A), the first end of the second end of described driving oil cylinder (5) and described first connecting rod (7) is hinged by the second hinge (B), the second end of described first connecting rod (7) and described the second mount pad (2) are hinged by tri-joint mechanism (C), the first end of described load oil cylinder (6) and described the 4th mount pad (4) are hinged by the 6th hinge (F), and the second end of described load oil cylinder (6) is connected in the first end of described first connecting rod (7);
Each hinge is positioned at same plane, and each hinged place is provided with axle sleeve and bearing pin;
The flexible hydraulic oil that provides of the flexible and described load oil cylinder (6) of described driving oil cylinder (5) is provided described hydraulic system.
2. axle sleeve wear test system as claimed in claim 1, is characterized in that, described axle sleeve wear test system also comprises the 3rd mount pad (3), second connecting rod (8) and third connecting rod (9), wherein:
Described the 3rd mount pad (3) is installed on described workbench (10); The first end of the first end of described second connecting rod (8) and described first connecting rod (7) is hinged by described the first hinge (B), the second end of the first end of the second end of described second connecting rod (8), described third connecting rod (9) and described load oil cylinder (6) is hinged by the 4th hinge (D), and the second end of described third connecting rod (9) and described the 3rd mount pad (3) are hinged by the 5th hinge (E); Each hinge is positioned at same plane, and each hinged place is provided with axle sleeve and bearing pin.
3. axle sleeve wear test system as claimed in claim 1 or 2, it is characterized in that, the position relationship of three hinges that form between bucket cylinder (54), rocking bar (52) and dipper (55) on the position relationship of described the first hinge (A), described the second hinge (B) and described tri-joint mechanism (C) and excavator matches.
4. axle sleeve wear test system as claimed in claim 1 or 2, it is characterized in that, the position relationship of three hinges that form between bucket arm cylinder (56), dipper (55) and swing arm (57) on the position relationship of described the first hinge (A), described the second hinge (B) and described tri-joint mechanism (C) and excavator matches.
5. axle sleeve wear test system as claimed in claim 1 or 2, it is characterized in that, the position relationship of three hinges that form between swing arm (57), upper body (58) and boom cylinder (59) on the position relationship of described the first hinge (A), described the second hinge (B) and described tri-joint mechanism (C) and excavator matches.
6. axle sleeve wear test system as claimed in claim 2, it is characterized in that, five hinges that dipper (55) on the position relationship of described the first hinge (A), described the second hinge (B), described tri-joint mechanism (C), described the 4th hinge (D), described the 5th hinge (E) and described the 6th hinge (F) and excavator, bucket arm cylinder (54), rocking bar (53), pull bar (52) and scraper bowl (51) form and the position relationship of scraper bowl crown (f) match.
7. axle sleeve wear test system as claimed in claim 2, it is characterized in that, the position relationship of the position relationship of described the first hinge (A), described the second hinge (B) and described tri-joint mechanism (C) and described the 6th hinge (F), described the 4th hinge (D) and described the 5th hinge (E) is arranged symmetrically.
8. axle sleeve wear test system as claimed in claim 1 or 2, it is characterized in that, each mount pad includes base plate (1001) and is arranged at the pedestal (1002) on this base plate (1001), the bottom of described workbench (10) is provided with guide-track groove (101), fixing by bolt (1003) between described base plate (1001) and described guide-track groove (101).
9. axle sleeve wear test system as claimed in claim 1 or 2, it is characterized in that, described hydraulic system comprises fuel tank (20), driving pump (21), reversal valve (23), slippage pump (22), the first retaining valve (27) and the second retaining valve (28), wherein:
The oil-in of described driving pump (21) is connected to described fuel tank (20), the oil-out of described driving pump (21) is connected to the oil-in of described reversal valve (23), the oil return opening of described reversal valve (23) is connected to fuel tank (20), and two actuator ports of described reversal valve (23) are connected to respectively rod chamber and the rodless cavity of described driving oil cylinder (5);
The oil-in of described slippage pump (22) is connected to fuel tank (20), the oil-out of described slippage pump (22) is connected to the oil-in of described the first retaining valve (27) and the oil-in of described the second retaining valve (28), and the oil-out of the oil-out of described the first retaining valve (27) and described the second retaining valve (28) is connected to respectively rodless cavity and the rod chamber of described load oil cylinder (6).
10. axle sleeve wear test system as claimed in claim 9, it is characterized in that, described axle sleeve wear test system also comprises electric-control system, described electric-control system comprises controller (30), the first motor (31) and the second motor (32), wherein: described the first motor (31) is for driving described driving pump (21); Described the second motor (32) is for driving slippage pump (22); Described controller (30) receives the pressure information from the rod chamber of described load oil cylinder (6) and rodless cavity, described reversal valve (23), described driving pump (21), described load pump (22), and according to default control strategy, control rotating speed and the power of described the first motor (31) and described the second motor (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310528560.XA CN103592123B (en) | 2013-10-30 | 2013-10-30 | Axle sleeve wear test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310528560.XA CN103592123B (en) | 2013-10-30 | 2013-10-30 | Axle sleeve wear test system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103592123A true CN103592123A (en) | 2014-02-19 |
| CN103592123B CN103592123B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310528560.XA Expired - Fee Related CN103592123B (en) | 2013-10-30 | 2013-10-30 | Axle sleeve wear test system |
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| Country | Link |
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| CN (1) | CN103592123B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982731A (en) * | 2020-08-26 | 2020-11-24 | 徐州徐工挖掘机械有限公司 | Bushing friction wear test device |
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| JP2005106479A (en) * | 2003-09-26 | 2005-04-21 | Honda Motor Co Ltd | Abrasion tester |
| CN101270462A (en) * | 2007-03-22 | 2008-09-24 | 宝山钢铁股份有限公司 | Hot galvanizing sink roller shaft sleeve and on-line testing method for liner wear degree |
| CN201514179U (en) * | 2009-11-03 | 2010-06-23 | 攀钢集团攀枝花钢钒有限公司 | On-line abrasion measuring device for bushes and sleeves of sink rolls |
| CN201955276U (en) * | 2010-12-15 | 2011-08-31 | 江苏法尔胜新日制铁缆索有限公司 | Device for checking wear resistance of shaft sleeve of suspension bridge sling pin shaft |
| CN102776909A (en) * | 2012-08-17 | 2012-11-14 | 江苏柳工机械有限公司 | Oil cylinder connecting device |
-
2013
- 2013-10-30 CN CN201310528560.XA patent/CN103592123B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005106479A (en) * | 2003-09-26 | 2005-04-21 | Honda Motor Co Ltd | Abrasion tester |
| CN101270462A (en) * | 2007-03-22 | 2008-09-24 | 宝山钢铁股份有限公司 | Hot galvanizing sink roller shaft sleeve and on-line testing method for liner wear degree |
| CN201514179U (en) * | 2009-11-03 | 2010-06-23 | 攀钢集团攀枝花钢钒有限公司 | On-line abrasion measuring device for bushes and sleeves of sink rolls |
| CN201955276U (en) * | 2010-12-15 | 2011-08-31 | 江苏法尔胜新日制铁缆索有限公司 | Device for checking wear resistance of shaft sleeve of suspension bridge sling pin shaft |
| CN102776909A (en) * | 2012-08-17 | 2012-11-14 | 江苏柳工机械有限公司 | Oil cylinder connecting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982731A (en) * | 2020-08-26 | 2020-11-24 | 徐州徐工挖掘机械有限公司 | Bushing friction wear test device |
| CN111982731B (en) * | 2020-08-26 | 2023-09-26 | 徐州徐工挖掘机械有限公司 | Bushing friction and wear test device |
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|---|---|
| CN103592123B (en) | 2016-08-24 |
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