CN106017934B - Automobile hub bearing tester - Google Patents

Automobile hub bearing tester Download PDF

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Publication number
CN106017934B
CN106017934B CN201610654141.4A CN201610654141A CN106017934B CN 106017934 B CN106017934 B CN 106017934B CN 201610654141 A CN201610654141 A CN 201610654141A CN 106017934 B CN106017934 B CN 106017934B
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CN
China
Prior art keywords
load
radial
axial
loaded
loading
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Application number
CN201610654141.4A
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Chinese (zh)
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CN106017934A (en
Inventor
经营亮
郭长建
Original Assignee
人本集团有限公司
上海人本集团有限公司
上海思博特轴承技术研发有限公司
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Application filed by 人本集团有限公司, 上海人本集团有限公司, 上海思博特轴承技术研发有限公司 filed Critical 人本集团有限公司
Priority to CN201610654141.4A priority Critical patent/CN106017934B/en
Publication of CN106017934A publication Critical patent/CN106017934A/en
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Publication of CN106017934B publication Critical patent/CN106017934B/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/04Bearings

Abstract

The present invention relates to a kind of automobile hub bearing testers,Including fuselage,Main shaft device,Axial loading device and radial loading device,The major axis horizontal arrangement of main shaft device and axially both ends are rigidly connected and have experiment shaft device,The main shaft rotation centerline of main shaft device is overlapped with the rotation centerline of experiment shaft device,Respectively there are one radial loading device and the carrier compounds being connect with hub bearing outer ring for configuration for two experiment shaft devices,Carrier compound, which has, is radially away from the load on arm that experiment shaft device extends,The central axis of radial loading device is in the center line of experiment shaft device,The loading end of radial loading device is connect with carrier compound,The main shaft of axial loading device and main shaft device is arranged in parallel,Axial loading device is located between two radial loading devices,Two loading ends of axial loading device are correspondingly connected on the load on arm of carrier compound.Above structure have it is reasonable in design, can real simulation hub bearing stress and size, detect accurate and reliable advantage.

Description

Automobile hub bearing tester
Technical field
The present invention relates to bearing test detection device technical fields, are specifically the examinations tested for automobile hub bearing Test machine.
Background technology
The firm bearing of automotive wheels is transmission component mostly important in automobile, with the development of auto industry, the firm axis of automotive wheels The structure held also is being improved always, is by bearing and bearing body and the firm company of automotive wheels by earliest simple improvement of bearing structure The flange design connect is structure as a whole, referred to as the firm bearing of automotive wheels, and the firm bearing of automotive wheels plays very in the operation of automobile Important role.
That there are structure designs is unreasonable for the test equipment of existing automobile hub bearing, and loading simulation is inaccurate, causes to test As a result inaccurate.
Invention content
Objects of the present invention:To overcome defect of the existing technology, present invention offer is a kind of reasonable in design, can The automobile hub bearing tester of real simulation hub bearing stress and size has testing result accurate.
To achieve the above object, the present invention provides following technical solutions:
A kind of automobile hub bearing tester, include fuselage, main shaft device, experiment shaft device, axial loading device with And radial loading device, it is characterised in that:The major axis horizontal of the main shaft device is arranged, the main shaft axial two of the main shaft device End rigid connection has experiment shaft device, the rotation centerline weight of the main shaft rotation centerline and experiment shaft device of main shaft device It closes, respectively there are one radial loading device and the carrier compound being connect with hub bearing outer ring, carrier compounds for configuration for two experiment shaft devices With the load on arm for being radially away from experiment shaft device extension, the central axis of radial loading device is in experiment shaft device Center line, the loading end of radial loading device connect with carrier compound, axial loading device cloth parallel with the main shaft of main shaft device It sets, axial loading device is located between two radial loading devices, and two loading ends of axial loading device are correspondingly connected to bear On the load on arm of lotus body.
Above-mentioned automobile hub bearing tester, carrier compound are installed on the hub bearing outer ring of experiment shaft device, radial to add It carries to set and hub bearing is loaded by carrier compound realization with axial loading device, simple in structure, characteristics of compact layout loads mould Quasi- accurate and reliable, carrier compound has the load on arm loaded for axial loading device, and load on arm, which is realized, is loaded on hub spindle The radius of the tire or matched wheel that hold is simulated, and loading force simulation is more accurate.
Preferably, the carrier compound includes pedestal, and pedestal is installed on the hub bearing outer ring in experiment shaft device, base Seat top is hinged with radial loaded fork through oscillating bearing, and loading end and the radial loaded fork of the radial loading device connect, base Seat lower part is fixedly connected with the load on arm, and the loading end of the axial loading device connects with load on arm through oscillating bearing It connects.
Under said structure design, carrier compound is reasonable in design, is convenient for the company of radial loading device and axial loading device It connects and location arrangements, certain angle is allowed between radial loading device and carrier compound and between axial loading device and carrier compound The offset of degree ensures that load is accurate and reliable.
Preferably, the radial loading device includes radial loaded driving source, radial loaded cylinder and radial loaded buffering Cylinder, radial loaded driving source and radial loaded cylinder be connected by power, radial loaded cushion dashpot includes radial load cylinder, radial load Buffer bar and radial load spring buffer component, radial load cylinder both ends are equipped with radial load transition end cap, diameter To load spring buffer component loaded in radial load cylinder, radial load buffer bar middle part is equipped with carrying flange, radial load Buffer bar is plugged in a manner of it can slide axially in radial load cylinder, and radial load spring buffer component includes supporting respectively It is connected to the radial load buffer spring group at carrying flange axial direction both ends, output end and the radial loaded cushion dashpot one of radial loaded cylinder Radial load transition end cap is rigidly connected on end, and the radial load buffer bar of radial loaded cushion dashpot is connect with carrier compound.
Under said structure design, radial loaded cylinder applies loading force to radial loaded cushion dashpot, through radial loaded cushion dashpot Apply loading force to carrier compound, radial loaded power is applied to hub bearing to reach;The two of radial load spring buffer component Buffer spring group is realized carries out floating support to radial load absorption bar, and guarantee accurately may be used to the radial loaded power of hub bearing It leans on, reduces requirement on machining accuracy.
Preferably, the radial loaded driving source includes that the radial loaded motor 3 of be connected by power and radial loaded are slowed down Device, radial loaded cylinder include radial load screw rod, radial load nut and radial load cylinder barrel, radial load screw rod and radial direction The output end of loading motor is sequentially connected, and radial load screw rod position rotating coordinates in radial load cylinder barrel, radial load spiral shell Bar coordinates with radial load nut thread, and radial load nut is existed by that can move cooperation in a manner of radially load cylinder barrel slides straightly In radial load cylinder barrel, the transitioning end that radial load nut is fixedly connected on radial loaded cushion dashpot covers.
Under above-mentioned preferred structure, radial loaded cylinder uses electric motor driven screw, then realizes and load through nut linear slide, adds It is high convenient for control and loading accuracy to carry power, load is reliable and stable.
Preferably, the radial load nut includes that component, diameter are eliminated in the radial load nut body of tubular and gap There is Screw assembly hole section and assembly vestibule, shape between Screw assembly hole section and assembly vestibule to the endoporus of load nut body It eliminates component at having axial stop face, the radial load screw rod and Screw assembly hole section screw-thread fit, gap and is assemblied in assembly Hole intracavitary, it includes that spring and gap elimination nut are eliminated in gap that component is eliminated in gap, and it is elastic that spring axial direction one end is eliminated in gap It is connected on axial stop face, gap is eliminated the spring axial direction other end and is connected on gap elimination nut, and nut spiral shell is eliminated in gap For line spinning on the radial load screw rod, nut is eliminated can be assembled in a manner of the sliding of assembly vestibule and circumferential locking in gap In the pilot hole intracavitary.
Under above-mentioned preferred structure design, realize that eliminate radial load nut carries with radial under the action of spring is eliminated in gap Lotus screw rod in the case that screw-thread fit axial gap, to ensure loading accuracy and ensure it is stable and reliable in work.
Preferably, two radial loading devices are mounted on through distance regulating mechanism on fuselage, and the spacing adjusts machine Structure includes adjusting slide correspondingly with two radial loading devices, adjusts slide with can be along two radial loading device spacing The mode of direction sliding coordinates on fuselage, and the radial loading device, which is mounted on, to be adjusted on slide, between two adjusting slides Equipped with adjusting screw rod, adjusting screw rod locating rotation coordinates on fuselage, and adjusting screw rod has adjusts slide screw thread with one of Cooperation the first screw thread rod segment, and with another adjusting slide screw-thread fit the second screw thread rod segment, the first screw thread rod segment with Thread rotary orientation in second screw thread rod segment is opposite.
Under above-mentioned preferred structure design, in actual use, adjusting screw rod is rotated, slide synchronization-sliding is adjusted to drive It is close and separate, radial loading device and two experiment shaft device positions adaptations are adjusted to reach, it is simple in structure, it is easy to adjust.
Preferably, the axial loading device includes axially loaded power source, axially loaded cylinder and axially loaded buffering Cylinder, the output end of the axially loaded power source are connect with axially loaded cylinder input terminal, the loading end of the axially loaded cylinder with The load on arm of a wherein carrier compound connects, the center line of the axially loaded cylinder and the center line weight of axially loaded cushion dashpot It closes, axially loaded cylinder is divided into axially loaded power source both sides, the loading end of axially loaded cushion dashpot with axially loaded cushion dashpot It is connect with the load on arm of another carrier compound.
Under above-mentioned preferred structure design, under axially loaded power source drive, axially loaded cylinder action is realized to wherein one Load on arm loads, and under reaction force, axially loaded cushion dashpot realizes load to the load on arm of another carrier compound, from And reach and load synchronized to the hub bearing on two experiment shaft devices, under said structure design, it can ensure axial add It carries and stablizes accurately and reliably, and eliminate influence of the equipment vibrations to axially loaded power, ensure load reliably.
Preferably, the axially loaded power source includes axially loaded motor and axial load retarder, axially loaded Cylinder is divided into the both sides of axial load retarder with axially loaded cushion dashpot, and the output end of the axially loaded motor is carried with axial The input terminal of lotus retarder connects, and the output end of the axial load retarder is connect with axially loaded cylinder, described axially loaded Cylinder includes axially loaded screw rod, axially loaded nut and axial load cylinder barrel, axially loaded screw rod and axial load retarder Output end be sequentially connected, the cooperation of axially loaded screw rod position rotating is in axial load cylinder barrel, axially loaded screw rod and axial direction Nut thread cooperation is loaded, axially loaded nut is can move cooperation in axial load in a manner of load cylinder barrel slides straightly in an axial direction In cylinder barrel, axially loaded nut is connect with load on arm.
Preferably, the axially loaded nut includes the axial load nut body and axial pretightening component of tubular, axis There is threaded mounting hole section and installation vestibule, shape between threaded mounting hole section and installation vestibule to the endoporus of load nut body It is assemblied in installation at having axial abutment surface, the axially loaded screw rod and threaded mounting hole section screw-thread fit, axial pretightening component Hole intracavitary, axial pretightening component include preloading spring and pre-load nut, and preloading spring axial direction one end elasticity is connected to axial support In junction, the preloading spring axial direction other end is connected on pre-load nut, and pre-load nut screw thread spinning is in the axially loaded screw rod On, pre-load nut in a manner of the sliding of installation vestibule and circumferential locking can be assemblied in the mounting hole intracavitary.
Under above-mentioned preferred structure design, is realized under the action of preloading spring and eliminate axially loaded nut and axially loaded spiral shell Bar in the case that screw-thread fit axial gap, to ensure loading accuracy and ensure it is stable and reliable in work.
Preferably, the axially loaded cushion dashpot includes axial buffer cylinder, axial load buffer bar and axle spring Buffer Unit, axial buffer cylinder both ends are equipped with axial buffer transition end cap, and axle spring Buffer Unit is loaded on axial Carrying bulge loop is equipped in dsah-pot body, in the middle part of axial load buffer bar, axial load buffer bar is in a manner of it can slide axially It is plugged in axial buffer cylinder, axle spring Buffer Unit includes the axial buffer for being connected to carrying bulge loop axial direction both ends respectively Groups of springs, axially loaded cushion dashpot one end are rigidly connected with axially loaded power source, and the axial load of axially loaded cushion dashpot is slow The load on arm of jumper bar and carrier compound connects.
Under above-mentioned preferred structure design, the buffer shock-absorbing performance of axially loaded cushion dashpot is good, can ensure axially loaded standard It is really reliable.
The invention will be further described below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is specific embodiment of the invention automobile hub bearing tester structural schematic diagram one;
Fig. 2 is specific embodiment of the invention automobile hub bearing tester structural schematic diagram two;
Fig. 3 is specific embodiment of the invention main shaft device and experiment shaft device fit structure schematic diagram;
Fig. 4 is the hub bearing assembling structure schematic diagram of specific embodiment of the invention carrier compound and experiment shaft device;
Fig. 5 is specific embodiment of the invention radial loading device structural schematic diagram;
Fig. 6 is specific embodiment of the invention radial loaded cushion dashpot structural schematic diagram;
Fig. 7 is specific embodiment of the invention radial loaded cylinder structure schematic diagram;
Fig. 8 is specific embodiment of the invention radial load nut structure diagram;
Fig. 9 is specific embodiment of the invention axial loading device structural schematic diagram;
Figure 10 is the axially loaded cylinder structure schematic diagram of the specific embodiment of the invention;
Figure 11 is the axially loaded nut of the specific embodiment of the invention and axially loaded screw rod fit structure schematic diagram;
Figure 12 is the axially loaded cushion dashpot structural schematic diagram of the specific embodiment of the invention.
Specific implementation mode
As shown in Fig. 1 ~ 12, a kind of automobile hub bearing tester disclosed by the invention, include fuselage 1, electric-control system, Main shaft device 7, experiment shaft device 2, axial loading device 4 and radial loading device 3, experiment shaft device 2 includes for testing Hub bearing 21, the inner ring of hub bearing 21 and the main shaft 71 of main shaft device 7 are rigidly connected, in this specific embodiment, wheel hub The inner ring of bearing 21 and the main shaft 71 of main shaft device 7 are attached through connecting flange 22, the main shaft device 7 include main shaft 71 with And the rotating driver 72 of driving spindle rotation, 72 generally use motor of rotating driver, motor are driven through transmission belt, it is main Shaft device 7 and electric-control system are this field routine techniques, and so it will not be repeated, and the main shaft 71 of the main shaft device 7 is horizontally disposed, institute The axial both ends of main shaft 71 for stating main shaft device 7 be rigidly connecteds to have and test shaft device 2,71 rotation center of main shaft of main shaft device 7 Line with experiment shaft device 2 rotation centerline overlaps, two experiment shaft devices 2 respectively configuration there are one radial loading device 3 and with The carrier compound 5 of 21 outer ring of hub bearing connection, carrier compound 5, which has, is radially away from the load on arm that experiment shaft device 2 extends 51, the central axis of radial loading device 3 is in the center line of experiment shaft device 2, the loading end and load of radial loading device 3 Body 5 connects, and axial loading device 4 and the main shaft 71 of main shaft device 7 are arranged in parallel, and axial loading device 4 is located at two radial directions and adds It carries between setting 3, two loading ends of axial loading device 4 are correspondingly connected on the load on arm of carrier compound 5.Carrier compound 5 It is installed on 21 outer ring of hub bearing of experiment shaft device 2, radial loading device 3 and axial loading device 4 pass through carrier compound reality Now hub bearing is loaded, simple in structure, characteristics of compact layout, loading simulation is accurate and reliable, and carrier compound has for axially loaded The load on arm of device load, load on arm realize the radius mould loaded on tire or matched wheel on hub bearing Quasi-, loading force simulation is more accurate.
To make radial loading device and axial loading device easy for installation, the carrier compound 5 includes pedestal 52, pedestal 52 are installed on 21 outer ring of hub bearing in experiment shaft device 3, and 52 top of pedestal is hinged with radial loaded through oscillating bearing 53 The loading end of fork 54, the radial loading device 3 is connect with radial loaded fork 54, convenient for controlling and ensureing that loading force is accurate, Radial loaded fork 54 is equipped with load transducer 50, and the loading end of radial loading device 3 connects radial add through load transducer 50 Fork 54 is carried, 52 lower part of pedestal is fixedly connected with the load on arm 51(This be fixedly connected can be used fastener connection, welding and Be integrally formed etc.), the loading end of the axial loading device 4 connect with load on arm 51 through oscillating bearing 55.Carrier compound knot Structure reasonable design, is convenient for connection and the location arrangements of radial loading device and axial loading device, radial loading device with it is negative The offset for allowing certain angle between lotus body and between axial loading device and carrier compound ensures that load is accurate and reliable.For more Realization load on arm for convenience realizes the radius simulation loaded on the tire or matched wheel on hub bearing, axially loaded Two loading ends of device 4 are in can be along the setting that 51 lengthwise location of load on arm is adjusted on load on arm 51.This tool It is specially in body embodiment:It is equipped on load on arm 51 and adjusts bar shaped mounting hole, and divided along bar shaped mounting hole is adjusted Several position lock holes of cloth adjust installation and adjustment sliding block in bar shaped mounting hole, and adjusting slider is equipped with clamping screw, adjusts and slides Connecting shaft is installed, oscillating bearing is mounted in connecting shaft, and connecting shaft both ends are furnished with locking nut, are set on load on arm on motion block There are the strip-shaped hole adaptable with bar shaped mounting hole is adjusted, connecting shaft both ends to stretch out strip-shaped hole and realize position lock through locking nut It is fixed.
In this specific embodiment, the radial loading device 3 include radial loaded driving source 31, radial loaded cylinder 32 and Radial loaded cushion dashpot 33, radial loaded driving source 31 and 32 be connected by power of radial loaded cylinder, the output end of radial loaded cylinder 32 Connect through radial loaded cushion dashpot 33 between carrier compound 5, the radial loaded cushion dashpot 33 include radial load cylinder 33-1, Radial load buffer bar 33-2 and radial load spring buffer component, the both ends radial load cylinder 33-1 are equipped with radial direction Load transition end cap 33-4, radial load spring buffer component are loaded in radial load cylinder 33-1, radial load buffer bar 33- 2 middle parts are equipped with carrying flange 33-21, radial load buffer bar 33-2 and are plugged in radial load cylinder in a manner of it can slide axially In body 33-1, radial load spring buffer component include be connected to respectively carrying flange 33-21 axial directions both ends radial load it is slow Groups of springs 33-3 is rushed, radial load cylinder 33-1 is the load input part that radial loaded cylinder 32 connects, radial load transitioning end Lid 33-4 is rigidly attached to through bolt on radial loaded cylinder 32, and radial load buffer bar 33-2 is the load being connect with carrier compound 5 Output block.Radial buffer spring group 33-3 includes several stack of Belloville springs around radial loaded buffer bar 33-2 arrangements, dish Spring stack is made of the stacking of several disk springs, and spring guide pillar, stack of Belloville springs suit are equipped in radial load cylinder 33-1 On spring guide pillar 33-5;Two groups of radial direction buffer spring group 33-3 are contradicted with carrying flange 33-21 through pressure ring 33-6 and are supported.Tool Have the advantages that cushion performance is good.Certainly Coiled Spring Design can also be used, preferentially uses disk spring.
The radial loaded driving source 31 includes the radial loaded motor 31-1 and radial loaded retarder of be connected by power 31-2, radial loaded cylinder 32 include radial load cylinder barrel 32-1, radial load nut 32-2 and radial loaded screw rod 32-3, Radial loaded screw rod 32-3 position rotatings coordinate in radial load cylinder barrel 32-1, and radial loaded screw rod 32-3 is through bidirectional propulsion axis It holds 32-4 and rolling bearing 32-5 to be supported in radial load cylinder barrel 32-1, ensures to load reliable and stable, radial loaded screw rod 32- The output end of 3 and radial loaded retarder 31-2 is sequentially connected, radial loaded screw rod 32-3 and radial load nut 32-2 screw threads Cooperation, radial load nut 32-2 is can move cooperation in radial load cylinder barrel in a manner of radially load cylinder barrel 32-1 slides straightly In 32-1, radial load nut 32-2 is equipped with rotation stop pin 32-21, and sliding guide groove 32- is equipped in radial load cylinder barrel 32-1 11, rotation stop pin 32-21 stretch into sliding cooperation in sliding guide groove 32-11, and the one end radial load nut 32-2 is to stretch out radial load The load output end of the load output end of cylinder barrel 32-1, radial load nut 32-2 is fixedly connected on radial loaded cushion dashpot 33 On radial load transition end cap 33-4.Radial loaded cylinder uses electric motor driven screw, then realizes and load through nut linear slide, adds It is high convenient for control and loading accuracy to carry power, load is reliable and stable.Certainly traditional cylinder can also be used, oil cylinder is loaded, But exists and load insecure defect.
There are axial gaps when being coordinated using bolt and nut, between screw flight and the screw thread of nut deposits in load In zero load, cause load inaccurate;The radial load nut 32-2 include the radial load nut body 32-22 of tubular with And component is eliminated in gap, the endoporus of the radial load nut body 32-22 has Screw assembly hole section 32-221 and assembly It is formed with axial stop face 32-223 between vestibule 32-222, Screw assembly hole section 32-221 and assembly vestibule 32-222, it is described Radial loaded screw rod 32-3 and Screw assembly hole section 32-221 screw-thread fits, gap eliminate component and are assemblied in assembly vestibule 32-222 Interior, it includes that spring 32-23 and gap elimination nut 32-24 is eliminated in gap that component is eliminated in gap, and spring 32-23 axis is eliminated in gap It is connected on the 32-223 of axial stop face to one end elasticity, gap eliminates the spring 32-23 axial direction other ends and is connected to gap elimination On nut 32-24, nut 32-24 screw threads spinning is eliminated on the radial loaded screw rod 32-3 in gap, and nut 32- is eliminated in gap 24 in a manner of assembly vestibule 32-222 slidings and circumferential locking can be assemblied in the assembly vestibule 32-222.In pilot hole It is equipped with bar shaped rotation stop groove 32-224 in chamber 32-222, rotation stop disk 32-25, rotation stop are fixed on radial load nut body 32-22 There is the finger 32-251 stretched into bar shaped rotation stop groove 32-224 to constitute circumferential locking at the edges disk 32-25, prevent gap from eliminating spiral shell Female to be rotated with radial load nut body, finger is oriented to cooperation with the sliding of bar shaped rotation stop groove.The pretightning force of spring is eliminated in gap Effect is lower to realize the axial gap for eliminating radial load nut and radial loaded screw rod in screw-thread fit, to ensureing plus It carries precision and ensures stable and reliable in work.Gap is eliminated spring and is constituted using several disk springs, and spiral can also be used certainly Spring.
Two radial loading devices 3 are installed on the fuselage 1 through distance regulating mechanism 6, and the distance regulating mechanism 6 wraps It includes and adjusts slide 61 correspondingly with two radial loading devices 3, adjust slide 61 with can be between two radial loading devices 3 Mode away from direction sliding coordinates on the fuselage 1, adjusts slide 61 and realizes that installation, the radial loading device 3 are installed through sliding rail On adjusting slide 61, it is equipped with adjusting screw rod 62 between two adjusting slides 61,62 locating rotation of adjusting screw rod coordinates in fuselage 1 On, adjusting screw rod 62 has the first screw thread rod segment 62-1 with one of adjusting slide screw-thread fit, and is adjusted with another Save the screw thread rotation on the second screw thread the rod segment 62-2, the first screw thread rod segment 62-1 and the second screw thread rod segment 62-2 of slide screw-thread fit To opposite.It can realize that Liang Ge radial loadeds mechanism closer or far from synchronous adjustment is realized, adjusts simultaneously when rotating adjusting screw rod in this way Section operation is reliable;The driving of adjusting screw rod can be used automatically, can also be used manually, is set in the middle part of adjusting screw rod in this specific embodiment There is regulating wheel 63, realizes and adjust manually.
In this specific embodiment, the axial loading device 4 include axially loaded power source 41, axially loaded cylinder 42 and The output end of axially loaded cushion dashpot 43, the axially loaded power source 41 is connect with 42 input terminal of axially loaded cylinder, the axis It is connect to the loading end of load cylinder 42 with the load on arm of a wherein carrier compound, the center line and axis of the axially loaded cylinder 42 It is overlapped to the center line of load cushion dashpot 43, axially loaded cylinder 42 is divided into axially loaded power source with axially loaded cushion dashpot 43 41 both sides, the loading end of axially loaded cushion dashpot 43 are connect with the load on arm of another carrier compound.In axially loaded power source Under driving, axially loaded cylinder action, which is realized, loads a wherein load on arm, under reaction force, axially loaded cushion dashpot pair The load on arm of another carrier compound realizes load, adds to reach to synchronize the hub bearing on two experiment shaft devices It carries, under said structure design, can ensure that axially loaded stabilization is accurate and reliable, and eliminate equipment vibrations to axially loaded power It influences, ensures that load is reliable.
Axially loaded reliable to ensure, the axially loaded power source 41 includes axially loaded motor 41-1 and axial load Lotus retarder 41-2, axially loaded cylinder 42 are divided into the both sides of axial load retarder 41-2, institute with axially loaded cushion dashpot 43 The output end for stating axially loaded motor 41-1 is connect with the input terminal of axial load retarder 41-2, the axial load retarder The output end of 41-2 is connect with axially loaded cylinder 42, and the axially loaded cylinder of institute 42 includes axial load cylinder barrel 42-1, axially loaded Nut 42-2 and axially loaded screw rod 42-3, axially loaded screw rod 42-3 position rotatings cooperation is in axial load cylinder barrel 42-1 Interior, axially loaded screw rod 42-3 is supported on through two-direction thrust bearing 42-4 and rolling bearing 42-5 in axial load cylinder barrel 42-1, The output end of axially loaded screw rod 42-3 and axial load retarder 41-2 is sequentially connected, and axially loaded screw rod 42-3 adds with axial Nut 42-2 screw-thread fits are carried, axially loaded nut 42-2 is can move cooperation in a manner of load cylinder barrel 42-1 slides straightly in an axial direction In axial load cylinder barrel 42-1, axially loaded nut 42-2 is equipped with rotation stop pin 42-21, is set in axial load cylinder barrel 42-1 There are sliding guide groove 42-11, rotation stop pin 42-21 to stretch into sliding cooperation in sliding guide groove 42-11, the one end axially loaded nut 42-2 is The load output end of axial load cylinder barrel 42-1 is stretched out, load output end and the load on arm 51 of axially loaded nut 42-2 connect It connects.
Axially loaded reliable to ensure, the axially loaded nut 42-2 includes the axial load nut body of tubular 42-22 and preload component, the endoporus of the axial load nut body 42-22 have threaded mounting hole section 42-221 and peace Vestibule 42-222 is filled, axial abutment surface 42-223, institute are formed between threaded mounting hole section 42-221 and installation vestibule 42-222 Axially loaded screw rod 42-3 and threaded mounting hole section 42-221 screw-thread fits are stated, component is pre-tightened and is assemblied in installation vestibule 42-222 Interior, it includes preloading spring 42-23 and pre-load nut 42-24 to pre-tighten component, and preloading spring 42-23 axial directions one end elasticity is connected to On axial abutment surface 42-223, the preloading spring 42-23 axial direction other ends are connected on pre-load nut 42-24, pre-load nut 42-24 Screw thread spinning is on the axially loaded screw rod 42-3, and pre-load nut 42-24 is with can be along installation vestibule 42-222 slidings and circumferential The mode of locking is assemblied in the installation vestibule 42-222.Bar shaped rotation stop groove is equipped in installation vestibule 42-222, it is axial to carry Rotation stop disk 42-25 is fixed on lotus nut body 42-22, the edges rotation stop disk 42-25 have the finger stretched into bar shaped rotation stop groove 42-251 constitutes circumferential locking, prevents pre-load nut from being rotated with axial load nut body, and finger is led with the sliding of bar shaped rotation stop groove To cooperation.Preloading spring is preferentially arranged using several disk springs, and helical spring can also be used certainly.In the effect of preloading spring It is lower to realize the axial gap for eliminating axially loaded nut and axial load screw rod in screw-thread fit, to ensure load essence Degree, and it is axially loaded when, there are no-load condition, under preloading spring effect, effectively prevent shake caused by equipment operational vibration, Abnormal sound, damage etc..
Wherein, the axially loaded cushion dashpot 43 include axial buffer cylinder 43-1, axial load buffer bar 43-2 and Axle spring Buffer Unit, the both ends axial buffer cylinder 43-1 are equipped with axial buffer transition end cap 43-3, axle spring Buffer Unit is axially carried loaded on carrying bulge loop 43-21 is equipped in axial buffer cylinder 43-1, in the middle part of axial load buffer bar 43-2 Lotus buffer bar 43-2 is plugged in a manner of it can slide axially in axial buffer cylinder 43-1, and axle spring Buffer Unit includes It is connected to the axial buffer groups of springs 43-4 at carrying bulge loop 43-21 axial directions both ends, 43 one end of axially loaded cushion dashpot and axis respectively It is rigidly connected to load driver source 41, as load input part, the axial load buffer bar 43-2 of axially loaded cushion dashpot 43 It is connect with the load on arm 51 of carrier compound 5, as load output block.Axial load buffer spring group is several disk springs The stack of Belloville springs constituted is laminated, stack of Belloville springs is sleeved on axial load buffer bar.Have the advantages that cushion performance is good.When Coiled Spring Design so can also be used, preferentially use disk spring.

Claims (9)

1. a kind of automobile hub bearing tester, include fuselage, main shaft device, experiment shaft device, axial loading device and Radial loading device, it is characterised in that:The major axis horizontal of the main shaft device is arranged, the main shaft axial direction both ends of the main shaft device Rigid connection has experiment shaft device, the main shaft rotation centerline of main shaft device to be overlapped with the rotation centerline of experiment shaft device, Respectively there are one radial loading devices and the carrier compound being connect with hub bearing outer ring, carrier compound to have for configuration for two experiment shaft devices It is radially away from the load on arm that experiment shaft device extends, the central axis of radial loading device is in testing in shaft device The loading end of heart line, radial loading device is connect with carrier compound, the main shaft parallel arrangement of axial loading device and main shaft device, axis To loading device between two radial loading devices, two loading ends of axial loading device are correspondingly connected to carrier compound On load on arm, the carrier compound includes pedestal, and pedestal is installed on the hub bearing outer ring in experiment shaft device, pedestal Top is hinged with radial loaded fork through oscillating bearing, and loading end and the radial loaded fork of the radial loading device connect, pedestal Lower part is fixedly connected with the load on arm, and the loading end of the axial loading device connects with load on arm through oscillating bearing It connects.
2. automobile hub bearing tester according to claim 1, it is characterised in that:The radial loading device includes radial Load driver source, radial loaded cylinder and radial loaded cushion dashpot, radial loaded driving source and radial loaded cylinder be connected by power, diameter Include radial load cylinder, radial load buffer bar and radial load spring buffer component, the radial direction to load cushion dashpot Load cylinder both ends are equipped with radial load transition end cap, and radial load spring buffer component is loaded in radial load cylinder, diameter Carrying flange is equipped in the middle part of to load absorption bar, radial load buffer bar is plugged in radial load in a manner of it can slide axially In cylinder, radial load spring buffer component includes the radial load buffer spring for being connected to carrying flange axial direction both ends respectively Group, output end and the radial load transition end cap on radial loaded cushion dashpot one end of radial loaded cylinder are rigidly connected, radial loaded The radial load buffer bar of cushion dashpot is connect with carrier compound.
3. automobile hub bearing tester according to claim 2, it is characterised in that:The radial loaded driving source includes dynamic The radial loaded motor and radial loaded retarder, radial loaded cylinder of power connection include radial load screw rod, radial load spiral shell Female and radial load cylinder barrel, radial load screw rod and the output end of radial loaded motor are sequentially connected, and radial load screw rod is fixed In radial load cylinder barrel, radial load screw rod and radial load nut thread coordinate position rotatable engagement, radial load nut with Can the dynamic cooperation of mode that radially load cylinder barrel slides straightly in radial load cylinder barrel, radial load nut is fixedly connected on diameter It is covered to the transitioning end of load cushion dashpot.
4. automobile hub bearing tester according to claim 3, it is characterised in that:The radial load nut includes tubular Radial load nut body and gap eliminate component, the endoporus of radial load nut body have Screw assembly hole section and Vestibule is assembled, axial stop face is formed between Screw assembly hole section and assembly vestibule, the radial load screw rod is filled with screw thread With hole section screw-thread fit, gap eliminates component and is assemblied in pilot hole intracavitary, gap eliminate component include gap eliminate spring and Nut is eliminated in gap, and gap is eliminated spring axial direction one end elasticity and is connected on axial stop face, and it is axially another that spring is eliminated in gap End is connected to gap and eliminates on nut, and nut thread spinning is eliminated on the radial load screw rod in gap, and nut is eliminated in gap The pilot hole intracavitary can be assemblied in a manner of the sliding of assembly vestibule and circumferential locking.
5. automobile hub bearing tester according to claim 1, it is characterised in that:Between two radial loading device warps Distance regulating mechanism is mounted on fuselage, and the distance regulating mechanism includes adjusting cunning correspondingly with two radial loading devices Seat adjusts slide and is coordinated on fuselage in a manner of it can be slid along two radial loading device spacing directions, the radial loaded Device, which is mounted on, to be adjusted on slide, is equipped with adjusting screw rod between two adjusting slides, adjusting screw rod locating rotation coordinates in fuselage On, adjusting screw rod has the first screw thread rod segment with one of adjusting slide screw-thread fit, and adjusts slide with another Second screw thread rod segment of screw-thread fit, the first screw thread rod segment are opposite with the thread rotary orientation in the second screw thread rod segment.
6. automobile hub bearing tester according to claim 1, it is characterised in that:The axial loading device includes axial Load power source, axially loaded cylinder and axially loaded cushion dashpot, the output end of the axially loaded power source with it is axially loaded Cylinder input terminal connects, and the loading end of the axially loaded cylinder is connect with the load on arm of a wherein carrier compound, and the axial direction adds The center line for carrying cylinder is overlapped with the center line of axially loaded cushion dashpot, and axially loaded cylinder is divided into axial direction with axially loaded cushion dashpot Power source both sides are loaded, the loading end of axially loaded cushion dashpot is connect with the load on arm of another carrier compound.
7. automobile hub bearing tester according to claim 6, it is characterised in that:The axially loaded power source includes axis To loading motor and axial load retarder, axially loaded cylinder is divided into axial load retarder with axially loaded cushion dashpot The output end of both sides, the axially loaded motor is connect with the input terminal of axial load retarder, the axial load retarder Output end connect with axially loaded cylinder, the axially loaded cylinder includes axially loaded screw rod, axially loaded nut and axial direction The output end of load cylinder barrel, axially loaded screw rod and axial load retarder is sequentially connected, and axially loaded screw rod position rotating is matched It closes in axial load cylinder barrel, axially loaded screw rod and axially loaded nut thread coordinate, and axially loaded nut is with can be in an axial direction In axial load cylinder barrel, axially loaded nut is connect with load on arm for the dynamic cooperation of mode that load cylinder barrel slides straightly.
8. automobile hub bearing tester according to claim 7, it is characterised in that:The axially loaded nut includes tubular Axial load nut body and axial pretightening component, the endoporus of axial load nut body have threaded mounting hole section and Vestibule is installed, axial abutment surface is formed between threaded mounting hole section and installation vestibule, the axially loaded screw rod is pacified with screw thread Hole section screw-thread fit is filled, axial pretightening component is assemblied in mounting hole intracavitary, and axial pretightening component includes preloading spring and preload Nut, preloading spring axial direction one end elasticity are connected in axial abutment surface, and the preloading spring axial direction other end is connected to pre-load nut On, pre-load nut screw thread spinning is on the axially loaded screw rod, and pre-load nut is with can be along the sliding of installation vestibule and circumferential locking Mode be assemblied in the mounting hole intracavitary.
9. automobile hub bearing tester according to claim 7, it is characterised in that:The axially loaded cushion dashpot includes axis It is equipped with axial direction to buffering cylinder, axial load buffer bar and axle spring Buffer Unit, axial buffer cylinder both ends Transition end cap is buffered, axle spring Buffer Unit is convex loaded on carrying is equipped in axial buffer cylinder, in the middle part of axial load buffer bar Ring, axial load buffer bar are plugged in a manner of it can slide axially in axial buffer cylinder, axle spring Buffer Unit packet Include the axial buffer groups of springs for being connected to carrying bulge loop axial direction both ends respectively, axially loaded cushion dashpot one end and axially loaded power Source is rigidly connected, and the axial load buffer bar of axially loaded cushion dashpot and the load on arm of carrier compound connect.
CN201610654141.4A 2016-08-09 2016-08-09 Automobile hub bearing tester CN106017934B (en)

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CN109612615A (en) * 2018-12-24 2019-04-12 人本集团有限公司 The test device of automobile hub bearing load friction torque

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