CN208459007U - A kind of bearing test-bed - Google Patents

Abstract

The utility model relates to a kind of bearing test-bed, the testing stand is fixed by being embedded in the fixed station of underground, including motor, transmission shaft, loader and by test specimen, the insertion fixed station of motor memory type, and is lower than the setting on ground；One end of transmission shaft and the shaft-driven connection of the output of motor, the other end being oppositely arranged runs through loader, towards the setting stretched by test specimen；Loader is folded in by between test specimen and motor, and is attached thereto respectively；The connection for being detachably mounted to the top of loader by test specimen, and driving therewith；By the way that the motor of driving is embedded in bottom end, the structure removably fixed by test specimen from top, solves motor upper very well, assemble and disassemble the problem of bearing inconvenience, since driving motor is embedded in underground, reduce noise, by removably being fixed the performance test, it can be achieved that different type bearing with loader by test specimen.

Description

A kind of bearing test-bed

Technical field

The utility model relates to a kind of bearing test-beds, more particularly, to a kind of vertical type sliding bearing test-bed, more specifically It is a kind of for simulating the properties of the vertical type sliding bearing actual condition under different oil lubrication effects that ground, which is said,.

Background technique

Sliding bearing is the component that support transmission system the most universal, the most basic is applicable in various mechanical devices, There is direct influence to mechanical device working condition, reliability and durability.It, can be in laboratory by the experiment of sliding bearing The operating condition for simulating real work, evaluates the performance of sliding bearing, studies the influence of various factors.

It is to study the important means of large size bearing by actual condition modelling, load, most important feature seeks to simulate The actual condition of bearing operation, it is load, revolving speed, lubricant medium etc. that thrust bearing, which tests most important control variable,.Pass through survey It measures the frictional force (square) generated between friction pair and acts on bearing with the normal pressure calculating coefficient of friction in pair, to monitor bearing Operating status and fretting wear feature.

In the prior art for the simulation and experiment of the actual condition of bearing, several adjustment modes are proposed, but all exist Various problems: 1, a kind of force self-balanced formula thrust bearing experimental bench that CN201510258040.0 is provided, thrust bearing experiment Platform includes pedestal, and media Containers are connected on pedestal, and media Containers are disposed with lubricant medium inlet and outlet, inside media Containers Equipped with bearing frame, the upper end of bearing frame is connected with bearing frame end cap, the projecting shaft of torque sensor respectively with media Containers lid axis It holds seat to connect with bearing frame end cap, bearing frame end cap is connected with hydraulic cylinder, and hydraulic cylinder piston rod is pushed away by upper supporting disk and balance The connection of power bearing assembly, balance thrust bearing assembly and test thrust bearing assembly are mounted in bearing frame back-to-back, are shared and are pushed away Two end faces up and down of power disk, lower carrier are connect with disk spring component, by torque sensor measure thrust side surface with The torque and support Frictional Moment for Rolling Bearings that frictional force between bearing shell tiling generates, pass through the pressure in balance thrust bearing assembly Force snesor analyzes the frictional behavior of thrust bearing, the thrust bearing applying working condition of lubricant can be simulated, however, this kind of experimental bench Can only once realize a kind of simulation test of lubricant, replacement lubricant is more troublesome, and simulated experiment process need it is more Lubricant leads to serious waste；2, the water lubricating thrust bearing test device that CN200820089869.8 is provided, is driven by motor Dynamic, rack-mount motor is connect by shaft joint with main shaft, and the both ends of main shaft are equipped with positioning bearing, between fixed It is fixed with weight tray on main shaft between the bearing of position, the thrust disc in sink is mounted on the lower end of main shaft and with master Axis rotation, test bearing are mounted on bearing block, have inlet and outlet pipes on sink, and install heating and temperature control device, this kind uses The experimental method of water lubricating thrust bearing experimental provision, be used to the medium that lubricates be it is single, can not replace, by adjustment counterweight Mode realize load size variation so that measurement experiment bearing match friction force when attached rubbing for additional spring bearing Power is wiped, and this additional friction force can change with load variations, inconvenience correction.

Therefore, this also constitutes the structure for requiring further improvement bearing test-bed, particularly suitable revolving speed is higher, load The experimental bench of biggish sliding bearing can test different oil lubrication vertical type sliding bearings, simulate its actual condition The properties of test bearing, with the problems of solution.

Summary of the invention

It is described in view of the above problems existing in the prior art, the purpose of the utility model is to provide a kind of bearing test-bed Testing stand is fixed by being embedded in the fixed station of underground, including motor, transmission shaft, loader and by test specimen, motor The insertion fixed station of memory type, and it is lower than the setting on ground；One end of transmission shaft and the shaft-driven connection of the output of motor, relatively The other end of setting runs through loader, towards the setting stretched by test specimen；Loader is folded in by between test specimen and motor, and respectively It is attached thereto；The connection for being detachably mounted to the top of loader by test specimen, and driving therewith；It further include being fixed on fixed station The blower and water pump of bottom end, the blower and water pump pass through the setting that pipeline is connected to the fixed station external world；Pass through the electricity that will be driven Machine is embedded in bottom end, and loader is put and is located at centre, and the structure removably fixed by test specimen from top solves motor very well Upper, the problem of assembly and disassembly bearing inconvenience reduces noise simultaneously as driving motor is embedded in underground, reduces test-bed Whole exposed height so that testing stand operate it is more convenient, can be real by removably being fixed with loader by test specimen The performance test of existing different type bearing.

Preferably, transmission shaft runs through entire testing stand, and the torque of motor is transferred to by test specimen.

Preferably, transmission shaft includes central axis and tailing axle, wherein central axis run through loader, the setting of line coaxially therewith, And with the shaft-driven connection of the output of motor；The driven top for being fixed on central axis of tailing axle, and line is upward coaxially therewith Extend；It is divided into the central axis and tailing axle of drive connection by transmission shaft, convenient for accurately controlling the torque between each component, realizes Simulated experiment under different loads.

Preferably, central axis further includes fixed thereto integral, and the thrust disc moved altogether, by integrally setting with central axis The thrust disc set, is able to bear the axial thrust of loader, reduces influence of the circumferential thrust to testing stand because of loader.

Preferably, tailing axle is equipped with thrust disc, provides axial thrust and torque to by test specimen.

Preferably, in order to preferably the rotation of motor is transmitted in the form of torque, it is ensured that passed in the power of high-speed overload The stationarity of entire rotating shaft system and raising shafting dynamic property, further include in output shaft and transmission shaft with motor in dynamic The first shaft coupling that mandrel is drivingly connected, one end of the first shaft coupling and the shaft-driven connection of the output of motor, it is opposite to set Setting first shaft coupling is crossed in the other end set and the non-rotatable fixation of central axis, can the transmission of motor is more steady, Reliably.

Preferably, first shaft coupling is spline shaft coupling, and jackshaft can be along the axis direction freedom of spline shaft coupling Movement, can be overcome by spline shaft coupling and be asked in the prior art using other yielding coupling axial displacements are inadequate Topic, it is ensured that whole machine balancing of the bearing test-bed in Motor torque transmittance process.

It is highly preferred that further including being drivingly connected respectively with central axis and tailing axle to realize by the carrying simulation of test specimen Second shaft coupling.

Preferably, second shaft coupling is positive coupling, by the structure of positive coupling, efficiently by the biography of loader The torque for passing axial thrust and motor is passed to by test specimen.

It preferably, further include being arranged in loader and motor for the more easily installation and maintenance of realization loader Between mounting base, the fixation that the mounting base is flushed with ground, so that the fixation position of entire bearing experiment table It is flushed with earth's surface, is conducive to the rigidity for enhancing testing stand, the transmission intensity of lifting test platform.

Preferably, loader includes end cap, load cabinet, load cylinder, thrust collar and bearing gland, wherein end cap is solid It is scheduled on the setting that the bottom end of load cabinet is matched with first shaft coupling；Load cabinet is the cylindrical body with storage cavity；Add Carry the internal cavities for being fixed on load cabinet of oil cylinder memory type, and the opposite load telescopic setting of cabinet；Thrust collar with plus The connection of oil cylinder driving is carried, it is movable to be embedded in load housing interior volume；Bearing gland is relatively fixed with end cap interval On load cabinet top, set up separately by the end cap and bearing gland that are spaced apart in the two sides of load cabinet, and relative to first The setting of shaft coupling sealing reduces extraneous factor so that forming the internal environment of an opposing seal in load box house Influence to load cylinder improves the measuring accuracy of testing stand.

Preferably, convenient in order to what is assembled and safeguard, load cabinet includes lower load cabinet and upper load cabinet, it is described on Load cabinet is removably fixed with lower load cabinet, with this, passes through the lower load cabinet and upper load cabinet being detachably fixed It is tightened to entire one, it is ensured that the relative independentability of its internal environment.

Preferably, for the ease of the load to bearing application multiple directions, meets the needs of multiple angle experiments, load oil Cylinder includes at least one lower load cylinder and load cylinder at least one, under concyclic being evenly arranged in several lower load cylinder centers Load cabinet on, several upper load cylinder centers it is concyclic is evenly arranged on load cabinet on, with this, obtain more smoothly by Power avoids the experimental error as caused by the location error fixed with load cabinet.

It preferably, further include along loader axis direction in order to realize that efficiently providing high pressure oil with external pumping plant is connected to Through the high adapter tube of load cylinder and slave cylinder, and the oil pipe road by being provided on load cabinet and external pumping plant provide High pressure oil connection.

Preferably, high adapter tube includes lower high adapter tube and upper high adapter tube, wherein lower high adapter tube is passed through along the axis direction of loader It wears and successively descends slave cylinder and lower load cylinder, be connected to the oil pipe road being provided on lower load cabinet；Upper high adapter tube edge adds The axis direction for carrying device sequentially passes through slave cylinder, upper load cylinder and upper load cabinet, is connected to external pumping plant and provides high pressure Oil provides the upper high adapter tube and lower high adapter tube that high pressure oil is connected to, extremely aspect with outside pumping plant by processing inside loader Control of the realization to loader internal oil pressure, thus, to provide different size of axial load by test specimen, improve testing stand To the efficiency of bearing test.

It preferably, further include set in order to avoid testing stand is in the bring trouble of the lubricating oil oil accumulation of experiment operational process It is located in first shaft coupling, the disc being folded between first shaft coupling and upper load cylinder.

It preferably, further include that one end is fixed on lower slave cylinder, the other end being oppositely arranged is fixed on servo-actuated oil At least one mouse cage on cylinder is avoided well by the mouse cage being arranged between lower slave cylinder and upper slave cylinder In experimentation, the locking as caused by oil cylinder force imbalance.

Compared with prior art, the utility model provides a kind of bearing test-bed, by the way that the motor of driving is embedded in bottom End, loader is put and is located at centre, the structure removably fixed by test specimen from top, solves motor very well in upper, assembly and disassembly The problem of bearing inconvenience reduces noise simultaneously as driving motor is embedded in underground, and the entirety for reducing test-bed is exposed Highly, so that testing stand operate it is more convenient, by removably being fixed with loader by test specimen, it can be achieved that inhomogeneity The performance test that profile shaft is held.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of bearing test-bed provided by the utility model；

Fig. 2 is the structural schematic diagram of the loader provided by the utility model using bearing test-bed；

Fig. 3 is the structural profile illustration of the loader provided by the utility model using bearing test-bed.

Specific embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.

For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ", " ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and " in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and And respective explanations are made to the opposite description in space used herein above.

In a kind of bearing test-bed of the utility model, structure as shown in Figure 1, the testing stand by being embedded in ground 100 Under fixed station 200 be fixed, including motor 10, transmission shaft 80, loader 40 and by test specimen 60, wherein in motor 10 The insertion fixed station 200 of formula is deposited, and is lower than the setting on ground 100；One end of transmission shaft 80 and the output of motor 10 are shaft-driven Connection, the other end being oppositely arranged runs through loader 40, towards the setting extended by test specimen 60；Loader 40 is folded in by test specimen Between 60 and motor 10, and it is attached thereto respectively；It is detachably mounted to the top of loader 40 by test specimen 60, and is driven therewith Connection with this in the experimental bench of this bearing, by the way that the motor of driving is embedded in bottom end, loader is put and is located at centre, The structure removably fixed by test specimen from top solves motor in upper, the problem of assembly and disassembly bearing inconvenience very well, meanwhile, by In driving motor is embedded in underground, reduce noise, the whole exposed height of test-bed is reduced, so that testing stand operates It is more convenient, by the way that the performance test, it can be achieved that different type bearing is removably fixed with loader by test specimen.

It is preferably carried out in mode in the utility model, transmission shaft 80 runs through entire testing stand, and the torque of motor 10 is passed It is handed to by test specimen 60, to realize the performance test of bearing, specifically, transmission shaft 80 includes central axis 81 and tailing axle 82, wherein in Mandrel 81 run through loader 40, the setting of line coaxially therewith, and with the shaft-driven connection of the output of motor 10；Tailing axle 82 is driven The top for being fixed on central axis 81, and the extension upward of line coaxially therewith.With this, it is divided into drive connection by transmission shaft Mandrel and tailing axle realize the simulated experiment under different loads convenient for accurately controlling the torque between each component；Preferably, in Mandrel 81 further includes fixed thereto integral, and the thrust disc moved altogether；With this, pass through the thrust being wholely set with central axis Disk, is able to bear the axial thrust of loader, reduces influence of the circumferential thrust to testing stand because of loader；Further, Tailing axle 82 is equipped with thrust disc, provides axial thrust and torque to by test specimen 60.

Preferably, in order to which preferably the rotation of motor 10 is transmitted in the form of torque, it is ensured that in the power of high-speed overload The stationarity of entire rotating shaft system and raising shafting dynamic property, further include the output shaft and transmission shaft with motor 10 in transmission The first shaft coupling 20 that 80 central axis 81 is drivingly connected, one end of the first shaft coupling 20 and the output of motor 10 are shaft-driven Connection, the other end that is oppositely arranged and the non-rotatable fixation of central axis 81 can will be electric by the way that first shaft coupling 20 is arranged The transmission of machine 10 is more steady, reliable；Further, first shaft coupling 20 is spline shaft coupling, and jackshaft 81 can be along spline The axis direction of formula shaft coupling freely moves, and can be overcome by spline shaft coupling and be joined in the prior art using other elasticity The inadequate problem of axis device axial displacement, it is ensured that whole machine balancing of the bearing test-bed in Motor torque transmittance process；Further Ground further includes the second shaft coupling being drivingly connected respectively with central axis 81 and tailing axle 82 to realize by the carrying simulation of test specimen 50, preferably, the second shaft coupling 50 is positive coupling, with this, by the structure of positive coupling, efficiently by loader Transferring axial thrust and the torque of motor pass to by test specimen.

It is preferably carried out in mode in the utility model, in order to more easily realize the installation and maintenance of loader 40, It further include the mounting base 30 being arranged between loader 40 and motor 10, the mounting base 30 and ground 100 are approximately flush It is fixed, so that the fixation position of entire bearing experiment table is flushed with earth's surface, is conducive to the rigidity for enhancing testing stand, promotes examination Test the transmission intensity of platform.

As a kind of preferable embodiment, as shown in figure 3, the generally cylindrical shape of loader 40, with external pumping plant High pressure oil connection is provided, provides axial load, including end cap 41, load cabinet 42, load cylinder 43, thrust collar 46 to by test specimen With bearing gland 48, wherein end cap 41 is fixed on the setting that the bottom end of load cabinet 42 is matched with first shaft coupling 20；Load Cabinet 42 is the cylindrical body with storage cavity；The internal cavities for being fixed on load cabinet 42 of 43 memory type of load cylinder, and The opposite load telescopic setting of cabinet 42；The connection that thrust collar 46 and load cylinder 43 drive, it is movable to be embedded in load case In 42 inner space of body；Bearing gland 48 and the interval of end cap 41, which are relatively fixed, passes through interval on load 42 top of cabinet with this The end cap 41 and bearing gland 48 of distribution set up separately in the two sides of load cabinet 42, and set relative to what first shaft coupling 20 sealed It sets, so that forming the internal environment of an opposing seal inside load cabinet 42, reduces extraneous factor to load cylinder 43 Influence, improve the measuring accuracy of testing stand.

Preferably, convenient in order to what is assembled and safeguard, load cabinet 42 includes lower load cabinet 421 and upper load cabinet 422, load cabinet 422 and lower load cabinet 421 are removably fixed on this, with this, pass through the lower load case being detachably fixed Body 421 and upper load cabinet 422 are tightened to entire one, it is ensured that the relative independentability of its internal environment, further, in order to just In the load for applying multiple directions to bearing, meets the needs of multiple angle experiments, load cylinder 43 includes adding under at least one Carry oil cylinder 431 and load cylinder 432 at least one, load cabinet under concyclic being evenly arranged in several lower 431 centers of load cylinder On 421, several upper 432 centers of load cylinder be total to garden be evenly arranged on load cabinet 422 on, with this, obtain more smoothly by Power avoids the experimental error as caused by the location error fixed with load cabinet.

It is preferably carried out in mode in the utility model, further includes being folded in realize the small adjustment of experimentation Slave cylinder 45 between thrust collar 46 and load cylinder 43, specifically, slave cylinder 45 include being folded in thrust collar 46 under The lower slave cylinder 451 between cabinet 421 is loaded, and the upper servo-actuated oil being folded between thrust collar 46 and upper load cabinet 422 Cylinder 452, being capable of basis convenient for the further refinement to experiment loader load by following oil cylinder with what load cylinder configured Relevant parameter in specific experiment to be tested carries out the regulation experiment of various dimensions and multi-angle.

It further include along loader in structure preferably to realize that efficiently providing high pressure oil with external pumping plant is connected to 40 axis directions run through the high adapter tube 44 of load cylinder 43 and slave cylinder 45, and the logical oil by being provided on load cabinet 42 Pipeline provides high pressure oil with external pumping plant and is connected to, and specifically, high adapter tube 44 includes lower high adapter tube 441 and upper high adapter tube 442, In, lower height adapter tube 441 runs through along the axis direction of loader 40 successively descends slave cylinder 451 and lower load cylinder 431, and opens up Oil pipe road on lower load cabinet 421 is connected to；Upper height adapter tube 442 sequentially passes through upper servo-actuated along the axis direction of loader 40 Oil cylinder 452, upper load cylinder 432 and upper load cabinet 422 are connected to external pumping plant and provide high pressure oil, with this, by loader Inside processing provides the upper high adapter tube and lower high adapter tube that high pressure oil is connected to outside pumping plant, and extremely the realization of aspect is in loader The control of portion's oil pressure, thus, to provide different size of axial load by test specimen, improve the effect that testing stand tests bearing Rate.

It preferably, further include set in order to avoid testing stand is in the bring trouble of the lubricating oil oil accumulation of experiment operational process It is located in first shaft coupling 20, the disc 47 being folded between first shaft coupling 20 and upper load cylinder 432 passes through disc 47, lubricating oil can be effectively prevent to flow down along 20 side of first shaft coupling, it is ensured that the cleaning of load 42 internal cavities of cabinet is real Test the high accuracy of the data of platform test experiments.

It further, in structure preferably, further include that one end is fixed on lower slave cylinder 451, what is be oppositely arranged is another Outer one end is fixed at least one mouse cage 49 on slave cylinder 452, by lower slave cylinder 451 and upper slave cylinder The mouse cage being arranged between 452 avoids the locking as caused by oil cylinder force imbalance during the experiment well.

In conclusion forming a relatively independent enclosure space by load cabinets cavity, reduce external to its inside Fixed each component influence factor during the experiment, promotes the accuracy of experimental data；The load cylinder set up separately up and down is borrowed, Cooperate setting of being corresponding to it follows oil cylinder, it can be achieved that the simulation reconstruction that multi-angle exerts a force, provides the experiment condition of various dimensions；It is logical The high adapter tube crossed through each load cylinder and slave cylinder, and be connected to extraneous oil-servicing facilities, without dismantling experimental provision Realize the Comprehensive Experiment in the environment of different oil pressure.

In the utility model preferred embodiment, for the ease of providing the cavity of lubricating oil storage by the fixation of test specimen, Further include be detachably mounted on mounting base 30 by sample stent 70, with this, by realizing by test specimen by sample stent Fixation, and lubricating oil is provided and is deposited, meet different sizes, the bearing testing requirement of specification.

It is noted that further including providing cooling coolant 90 for a whole set of testing stand, the coolant 90 is dismountable It is fixed on mounting base 30 and/or by sample stent 70, provides lasting lubricating oil to bearing by pipeline, meanwhile, it can root According to the size and specification of bearing, suitable fixed position is selected to be fastened.

In addition, avoiding in order to ensure entire experimental bench is located at the operation of low space motor stabilizing because in fixed station 200 Portion further includes being fixed on 200 bottom end of fixed station since the long-term accumulation of vapor leads to that there was dampness in the air and bring security risk Blower 300 and water pump 400, the setting that the blower 300 and water pump 400 are connected to by pipeline with 200 external world of fixed station.

Although the utility model patent has been described by way of example and in terms of the preferred embodiments, but it is not for limiting the utility model Patent, anyone skilled in the art may be by above-mentioned take off in the spirit and scope for not departing from the utility model patent The methods and technical content shown makes possible variation and modification to technical solutions of the utility model, therefore, all without departing from this The content of utility model patent technical solution, the technical spirit according to the utility model patent are to the above embodiments any Simple modification, equivalent variations and modification, belong to the protection scope of the utility model patent technical solution.

Claims (17)

1. a kind of bearing test-bed, the testing stand is fixed by being embedded in the fixed station (200) under ground (100), Including motor (10), transmission shaft (80), loader (40) and by test specimen (60), which is characterized in that motor (10) memory type it is embedding Enter fixed station (200), and is lower than the setting of ground (100)；One end of transmission shaft (80) and the output of motor (10) are shaft-driven Connection, the other end being oppositely arranged runs through loader (40), towards the setting extended by test specimen (60)；Loader (40) is folded in By between test specimen (60) and motor (10), and it is attached thereto respectively；Loader (40) is detachably mounted to by test specimen (60) Top, and the connection driven therewith；It further include the blower (300) and water pump (400) for being fixed on fixed station (200) bottom end, it is described Blower (300) and water pump (400) pass through pipeline and the extraneous setting being connected to of fixed station (200).

2. bearing test-bed according to claim 1, which is characterized in that transmission shaft (80) runs through entire testing stand, will be electric The torque of machine (10) is transferred to by test specimen (60).

3. bearing test-bed according to claim 2, which is characterized in that transmission shaft (80) includes central axis (81) and tailing axle (82), wherein central axis (81) runs through loader (40), the setting of line coaxially therewith, and drives with the output shaft of motor (10) Connection；The driven top for being fixed on central axis (81) of tailing axle (82), and the extension upward of line coaxially therewith.

4. bearing test-bed according to claim 3, which is characterized in that central axis (81) further includes fixed thereto at one Body, and the thrust disc moved altogether.

5. bearing test-bed according to claim 3, which is characterized in that tailing axle (82) is equipped with thrust disc, to by test specimen (60) axial thrust and torque are provided.

6. bearing test-bed according to claim 3, which is characterized in that further include and the output shaft of motor (10) and transmission The first shaft coupling (20) that the central axis (81) of axis (80) is drivingly connected, one end and motor (10) of the first shaft coupling (20) The shaft-driven connection of output, the other end being oppositely arranged and central axis (81) non-rotatable fixation.

7. bearing test-bed according to claim 6, which is characterized in that first shaft coupling (20) is spline shaft coupling, Central axis (81) can freely be moved along the axis direction of spline shaft coupling.

8. bearing test-bed according to claim 3, which is characterized in that further include respectively with central axis (81) and tailing axle (82) second shaft coupling (50) being drivingly connected.

9. bearing test-bed according to claim 8, which is characterized in that second shaft coupling (50) is positive coupling.

10. bearing test-bed according to claim 1, which is characterized in that further include being arranged in loader (40) and motor (10) mounting base (30) between, the mounting base (30) and ground (100) approximately flush fixation.

11. bearing test-bed according to claim 1, which is characterized in that loader (40) includes end cap (41), load case Body (42), load cylinder (43), thrust collar (46) and bearing gland (48), wherein end cap (41) is fixed on load cabinet (42) The setting that is matched with first shaft coupling (20) of bottom end；Loading cabinet (42) is the cylindrical body with storage cavity；Load oil The internal cavities for being fixed on load cabinet (42) of cylinder (43) memory type, and opposite load cabinet (42) telescopic setting；It pushes away The connection of power head (46) and load cylinder (43) driving, it is movable to be embedded in load cabinet (42) inner space；Bearing gland (48) it is relatively fixed with end cap (41) interval on load cabinet (42) top.

12. bearing test-bed according to claim 11, which is characterized in that load cabinet (42) includes lower load cabinet (421) and upper load cabinet (422), the upper load cabinet (422) and lower load cabinet (421) are removably fixed.

13. bearing test-bed according to claim 11, which is characterized in that load cylinder (43) includes adding under at least one Oil cylinder (431) and load cylinder (432) at least one are carried, are added under concyclic being evenly arranged in several lower load cylinder (431) centers It carries on cabinet (421), several upper load cylinder (432) centers are concyclic to be evenly arranged in load cabinet (422).

14. bearing test-bed described in one of 1 to 13 according to claim 1, which is characterized in that further include along loader (40) axis (44) are taken over through load cylinder (43) and the high of slave cylinder (45) in line direction, and by being provided in load cabinet (42) Oil pipe road provides high pressure oil with external pumping plant and is connected to.

15. bearing test-bed according to claim 14, which is characterized in that height adapter tube (44) includes lower high adapter tube (441) With upper height adapter tube (442), wherein lower high adapter tube (441) is run through along the axis direction of loader (40) successively descends slave cylinder (451) and lower load cylinder (431) it, is connected to the oil pipe road being provided on lower load cabinet (421)；Upper high adapter tube (442) Upper slave cylinder (452), upper load cylinder (432) and upper load cabinet are sequentially passed through along the axis direction of loader (40) (422), it is connected to external pumping plant and high pressure oil is provided.

16. bearing test-bed according to claim 14, which is characterized in that further include being set in first shaft coupling (20) On, the disc (47) that is folded between first shaft coupling (20) and upper load cylinder (432).

17. bearing test-bed according to claim 15, which is characterized in that further include that one end is fixed on lower slave cylinder (451) on, the other end being oppositely arranged is fixed at least one mouse cage (49) on slave cylinder (452).