CN104034529A - Dustproof performance simulation test machine for automobile hub bearing unit - Google Patents
Dustproof performance simulation test machine for automobile hub bearing unit Download PDFInfo
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- CN104034529A CN104034529A CN201410219400.1A CN201410219400A CN104034529A CN 104034529 A CN104034529 A CN 104034529A CN 201410219400 A CN201410219400 A CN 201410219400A CN 104034529 A CN104034529 A CN 104034529A
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Abstract
The invention discloses a dustproof performance simulation test machine for an automobile hub bearing unit, wherein automobile hub bearings mainly are third-generation in China, and the traditional dustproof performance test machine is incapable of simulating the sealing dustproof working conditions during an actual vehicle running process. The dustproof performance simulation test machine disclosed by the invention comprises a drive mechanism, a transmission mechanism, a loading mechanism, a dust box component, a fan component, a control system and a test component, wherein a main shaft is driven by the drive mechanism, and a buffering shaft is fixed with the main shaft; the piston of an axial loading oil cylinder is fixed with a first knuckle bearing by virtue of a first tension and pressure sensor; the first knuckle bearing is hinged with a first joint sleeve by virtue of a pin shaft; the first joint sleeve and a loading arm are fixed with a load loading plate, the loading arm is fixed with a second joint sleeve, and the second joint sleeve is hinged with a second knuckle bearing by virtue of a pin shaft; one end of a second tension and pressure sensor is fixed with the second knuckle bearing, and the other end of the second tension and pressure sensor is fixed with the piston of a radial loading oil cylinder. The dustproof performance simulation test machine disclosed by the invention is suitable for various automobile hub bearings, and capable of simulating the complex loaded conditions of the hub bearings.
Description
Technical field
The invention belongs to bearing detection technique field, be specifically related to a kind of simulation test machine for automobile hub bearing unit anti-dust performance.
Background technology
Automobile hub bearing is one of key components and parts of automobile chassis, and its anti-dust performance directly affects the mission life of hub bearing, and then affects the driving safety of vehicle.In recent years, along with the raising of Domestic Automotive Industry level, the anti-dust performance of hub bearing causes the attention of production firm, complete-system vendor more and more.
At present, the application of China's automobile hub bearing, taking the third generation as main, is compared with double-row conical bearing with common double-row angular contact bal bearing, and maximum difference is the each integrated ring flange of its inner and outer ring.Abroad to the anti-dust performance research of hub bearing early, the international bearing giant such as SKF, TIMKEN has developed the anti-dust performance testing table for hub bearing, but its price is high, and because the reasons such as blockade on new techniques are difficult to meet domestic hub bearing manufacturing enterprise and use the actual demand of enterprise.Domestic, in industry, common hub bearing anti-dust performance testing machine is generally to improve based on plain bearing anti-dust performance testing machine, cannot adapt to the numerous hub bearing flange of specification.On the other hand, automobile hub bearing is axial except bearing in the operational process of automobile, outside radial load, due to camber angle, the impact at tyre toe-in angle etc. is also subject to the effect of a moment of flexure, especially work as Ackermann steer angle, moment of flexure sharply strengthens, make the inner ring of hub bearing, outer ring disalignment, anti-dust performance under this operating mode is different from general state completely, therefore cannot simulate the sealing and dustproof operating mode in actual vehicle driving process with traditional anti-dust performance testing machine, need one badly and can be applicable to all kinds of hub bearings, and can simulate hub bearing radially, axially, the automobile hub bearing unit anti-dust performance testing machine of moment of flexure complex load situation.
Summary of the invention:
The object of the invention is for the deficiencies in the prior art, propose a kind of simulation test machine for automobile hub bearing unit anti-dust performance, can be applicable to all kinds of automobile hub bearings, and can simulate hub bearing complex load situation.
The present invention includes driving mechanism, gear train, load maintainer, dust bin parts, fan part, control system and test parts.
Described gear train comprises main shaft, main spindle box, buffer shaft and shaft coupling; Described main shaft drives by driving mechanism, and is bearing in respectively on two bearing seats by two bearings, and two bearing seats are all fixed with main spindle box.Measure speed gears is connected by key with main shaft; One end of described buffer shaft is connected by shaft coupling with main shaft.
Described load maintainer comprises axial load oil cylinder, oil cylinder fixed head, the first pull pressure sensor, the first oscillating bearing, the first clutch collar, loading arm, the second clutch collar, second joint bearing, the second pull pressure sensor, radial loaded oil cylinder, cylinder pedestal, adjustment block, load load plate and regulator cubicle; The cylinder body of described axial load oil cylinder and oil cylinder fixed head are bolted, and one end of piston crown and the first pull pressure sensor is bolted; Piston and the main shaft of axial load oil cylinder be arranged in parallel; Described oil cylinder fixed head and regulator cubicle are fixed; The other end of described the first pull pressure sensor and the first oscillating bearing are bolted; The first described oscillating bearing and the first clutch collar are hinged by bearing pin; An arm of the first clutch collar and loading arm is separately fixed at the both sides, bottom of load load plate; Described loading arm is L-shaped, and another arm and second clutch collar of loading arm are fixed, and the second clutch collar and second joint bearing are hinged by bearing pin; One end of described the second pull pressure sensor and second joint bearing are bolted, and the piston crown of the other end and radial loaded oil cylinder is bolted, and the cylinder body of radial loaded oil cylinder is crossed bolt with cylinder pedestal and is connected; The piston of radial loaded oil cylinder is vertical with main shaft to be arranged; The T-shaped groove that described cylinder pedestal and adjustment block are offered is bolted, and the axis of T-shaped groove and main shaft be arranged in parallel; Described adjustment block is fixed on a top of the trellis, and bottom and the regulator cubicle of support are fixed.
Described dust bin parts comprise dust bin, heating plate, daylight lamp and dustproof folding; Described heating plate and daylight lamp are all fixed on the inwall of dust bin; Described dustproof folding is fixed on dust bin bottom, and load load plate is through dustproof folding.
Described fan part comprises blower fan, fan shroud and blower fan airduct; The outer cover of described blower fan has fan shroud; One end of the air outlet of blower fan and blower fan airduct is fixed, and the other end of blower fan airduct stretches in dust bin.
Described control system comprises industrial computer, speed probe and temperature sensor; Described speed probe is arranged on the inwall of main spindle box, and temperature sensor is arranged on the inwall of dust bin; The output terminal of described the first pull pressure sensor, the second pull pressure sensor, speed probe and temperature sensor is all connected with industrial computer; The output control terminal of described industrial computer is connected with the input end of heating plate, hydraulic cylinder Oil pump electrical machinery.
Described test head assembly is arranged in dust bin; Test parts comprises test axle, ring flange, axle sleeve and axle sleeve snap ring; One end of described test axle and the other end of buffer shaft are fixed, and the other end is bearing on a bearing seat by bearing; Described main shaft, buffer shaft and test axle coaxially arrange; The other end of described ring flange and load load plate is bolted; The inwall of described axle sleeve is connected by key with test axle, and outer wall is provided with spline; Axle sleeve is by axle sleeve snap ring axial location; The outer end of described axle sleeve is provided with the shaft shoulder.
Described driving mechanism comprises drive motor, driving pulley, driven pulley and travelling belt; The output shaft of described drive motor is connected by key with driving pulley, and the input end of drive motor is connected with the output control terminal of industrial computer; Described driving pulley is connected by travelling belt with driven pulley, and described driven pulley is connected by key with main shaft.
Between two arms of described loading arm, be provided with reinforcement.
Beneficial effect of the present invention:
The present invention is directed to the actual condition of hub bearing, simulation loading radial load, axial load and moment of flexure, and make hub bearing Internal and external cycle axis form dislocation by distortion and the deflection of load load plate, make test bearing be subject to load condition more close to the true stand under load of automobile hub bearing; The present invention's application hydraulic loaded mode, the input that can compose by numerical value road, simulate that actual road surface produces time become radial load excitation, and derive from time become axial load excitation, change the size of moment of flexure by adjusting radial load loading position simultaneously; The ring flange that the present invention is directed to hub bearing has designed special hub bearing clamping mechanism, can be applicable to all kinds of third generation automobile hub bearings.
Brief description of the drawings
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the cut-open view of dust bin parts and test parts in the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As illustrated in fig. 1 and 2, a kind of simulation test machine for automobile hub bearing unit anti-dust performance, comprises driving mechanism, gear train, load maintainer, dust bin parts, fan part, control system and test parts.
Driving mechanism comprises drive motor 1, driving pulley 2, driven pulley 3 and travelling belt 4; The output shaft of drive motor 1 is connected by key with driving pulley 2, and driving pulley 2 is connected by travelling belt 4 with driven pulley 3;
Gear train comprises main shaft 5, main spindle box 6, buffer shaft 7 and shaft coupling 8; Main shaft 5 is connected by key with driven pulley 3, and is bearing in respectively on two bearing seats 9 by two bearings, and two bearing seats 9 are all fixing with main spindle box 6; Power is passed to main shaft 5 by drive motor 1.Measure speed gears 10 is connected by key with main shaft 5; One end of buffer shaft 7 is connected by shaft coupling 8 with main shaft 5.
Load maintainer comprises axial load oil cylinder 11, oil cylinder fixed head 12, the first pull pressure sensor 13, the first oscillating bearing 14, the first clutch collar 15, loading arm 16, the second clutch collar 17, second joint bearing 18, the second pull pressure sensor 19, radial loaded oil cylinder 20, cylinder pedestal 21, adjustment block 22, load load plate 23 and regulator cubicle 24; The cylinder body of axial load oil cylinder 11 and oil cylinder fixed head 12 are bolted, and one end of piston crown and the first pull pressure sensor 13 is bolted; The piston of axial load oil cylinder 11 and main shaft 5 be arranged in parallel; Oil cylinder fixed head 12 is fixing with regulator cubicle 24; The other end of the first pull pressure sensor 13 and the first oscillating bearing 14 are bolted; The first oscillating bearing 14 and the first clutch collar 15 are hinged by bearing pin 25; An arm of the first clutch collar 15 and loading arm 16 is separately fixed at the both sides, bottom of load load plate 23; The piston of axial load oil cylinder 11 to load load plate 15 imposed loads, produces load load plate 15 bending by the first pull pressure sensor 13, the first oscillating bearing 14 and the first clutch collar 15; Loading arm 16 is L-shaped, between two arms, is provided with reinforcement; Another arm of loading arm 16 and the second clutch collar 17 are fixing, and the second clutch collar 17 is hinged by bearing pin 25 with second joint bearing 18; One end of the second pull pressure sensor 19 and second joint bearing 18 are bolted, and the piston crown of the other end and radial loaded oil cylinder 20 is bolted, and the cylinder body of radial loaded oil cylinder 20 is crossed bolt with cylinder pedestal 21 and is connected; The setting vertical with main shaft 5 of the piston of radial loaded oil cylinder 20; Cylinder pedestal 21 is bolted with the T-shaped groove that adjustment block 22 is offered, and the axis of T-shaped groove and main shaft 5 be arranged in parallel, and the position adjustment of radial loaded oil cylinder 20 is realized in the position of adjustment bolt in T-shaped groove; Adjustment block 22 is fixed on support 26 tops, and the bottom of support 26 and regulator cubicle 24 are fixing.
As shown in Fig. 1,3 and 4, dust bin parts comprise dust bin 27, heating plate 28, daylight lamp 29 and dustproof folding 30.Heating plate 28 and daylight lamp 29 are all fixed on the inwall of dust bin 27; Daylight lamp 29 plays a role in lighting.Dustproof folding 30 is fixed on dust bin 27 bottoms, and load load plate 23 is through dustproof folding 30, and the effect of sealing dust bin 27 is played in dustproof folding 30.
As shown in Figures 2 and 3, fan part comprises blower fan 31, fan shroud 32 and blower fan airduct 33; The outer cover of blower fan 31 has fan shroud 32; One end of the air outlet of blower fan 31 and blower fan airduct 33 is fixed, and the other end of blower fan airduct 33 stretches in dust bin 26, gives dust bin 26 inner blowing.
Control system comprises industrial computer, speed probe 34 and temperature sensor 35; Speed probe 34 is arranged on the inwall of main spindle box 6, and temperature sensor 35 is arranged on the inwall of dust bin 27; The output terminal of the first pull pressure sensor 13, the second pull pressure sensor 19, speed probe 34 and temperature sensor 35 is all connected with industrial computer; The output control terminal of industrial computer is connected with the input end of heating plate 28, drive motor 1 and the input end of hydraulic cylinder Oil pump electrical machinery; Control heating plate 28 and heat the air in dust bin 27; Speed probe 34 gathers the rotating speed of measure speed gears 10, i.e. the rotating speed of main shaft 5; Temperature sensor 35 collecting temperature signals are also transferred to industrial computer; FEEDBACK CONTROL is processed and made to the information that industrial computer gathers the first pull pressure sensor 13, the second pull pressure sensor 19, speed probe 34 and temperature sensor 35, thereby realize the simulation to hub-bearing unit running environment.
As shown in Figures 3 and 4, test head assembly is arranged in dust bin 27; Test parts comprises test axle 36, ring flange 37, axle sleeve 38 and axle sleeve snap ring 39; Test one end of axle 36 and the other end of buffer shaft 7 are fixed, and the other end is bearing on a bearing seat 9 by bearing; Main shaft 5, buffer shaft 7 and test axle 36 coaxially arrange; Ring flange 37 is bolted with the other end of load load plate 23; The inwall of axle sleeve 38 is connected by key with test axle 36, and outer wall is provided with spline; Axle sleeve 38 is by axle sleeve snap ring 39 axial location; The outer end of axle sleeve 38 is provided with shaft shoulder 38-1.
The principle of work of this simulation test machine for automobile hub bearing unit anti-dust performance:
By fixing to the flange portions of test hub bearing 40 and ring flange 37, the spline of axle sleeve 38 outer walls and the spline joint of testing hub bearing 40 inwalls, the shaft shoulder 38-1 of axle sleeve compresses test hub bearing 40, and axle sleeve snap ring 39 is realized the axial location of axle sleeve 38; The position of adjusting axial load cylinder 11 and radial loaded oil cylinder 20, makes its Pass Test requirement, and in dust bin 27, packs dust medium according to testing requirements into.Start industrial computer, axial, radial load loading procedure that input test is required, speed of mainshaft program, test dust box temperature and cycle index; The load loading and the speed of mainshaft are non-constant; Start drive motor, blower motor and hydraulic cylinder Oil pump electrical machinery, main shaft 5, buffer shaft 7 and test axle 36 start rotation, and the rotation of the inner ring of motoring ring test hub bearing 40; Ring flange 37, by the outer ring loading from the load of load load plate 23 to test hub bearing 40, plays the effect of fixation test hub bearing 40 outer rings simultaneously; Blower fan 31 starts to the interior ventilation of dust bin 27, dust in dust bin 27 is distributed more equably, and heating plate 28 starts heating, and temperature sensor 35 is monitored the temperature in dust bin 27, industrial computer regulates heating plate 28 in real time, makes test temperature maintain 125～135 DEG C; In the time reaching test cycle number of times, testing machine is automatically out of service, and industrial computer is preserved test engine data; Now wait for that testing machine unloads completely, cut off testing machine power supply, and by the time test after hub bearing 40 temperature are reduced to normal temperature and open dust bin 27, unload test axle 36 and test hub bearing 40, manually take test hub bearing 40 apart, the inner dust of check test hub bearing 40 enters situation, off-test.
Claims (3)
1. a simulation test machine for automobile hub bearing unit anti-dust performance, comprises driving mechanism, gear train, load maintainer, dust bin parts, fan part, control system and test parts, it is characterized in that:
Described gear train comprises main shaft, main spindle box, buffer shaft and shaft coupling; Described main shaft drives by driving mechanism, and is bearing in respectively on two bearing seats by two bearings, and two bearing seats are all fixed with main spindle box; Measure speed gears is connected by key with main shaft; One end of described buffer shaft is connected by shaft coupling with main shaft;
Described load maintainer comprises axial load oil cylinder, oil cylinder fixed head, the first pull pressure sensor, the first oscillating bearing, the first clutch collar, loading arm, the second clutch collar, second joint bearing, the second pull pressure sensor, radial loaded oil cylinder, cylinder pedestal, adjustment block, load load plate and regulator cubicle; The cylinder body of described axial load oil cylinder and oil cylinder fixed head are bolted, and one end of piston crown and the first pull pressure sensor is bolted; Piston and the main shaft of axial load oil cylinder be arranged in parallel; Described oil cylinder fixed head and regulator cubicle are fixed; The other end of described the first pull pressure sensor and the first oscillating bearing are bolted; The first described oscillating bearing and the first clutch collar are hinged by bearing pin; An arm of the first clutch collar and loading arm is separately fixed at the both sides, bottom of load load plate; Described loading arm is L-shaped, and another arm and second clutch collar of loading arm are fixed, and the second clutch collar and second joint bearing are hinged by bearing pin; One end of described the second pull pressure sensor and second joint bearing are bolted, and the piston crown of the other end and radial loaded oil cylinder is bolted, and the cylinder body of radial loaded oil cylinder is crossed bolt with cylinder pedestal and is connected; The piston of radial loaded oil cylinder is vertical with main shaft to be arranged; The T-shaped groove that described cylinder pedestal and adjustment block are offered is bolted, and the axis of T-shaped groove and main shaft be arranged in parallel; Described adjustment block is fixed on a top of the trellis, and bottom and the regulator cubicle of support are fixed;
Described dust bin parts comprise dust bin, heating plate, daylight lamp and dustproof folding; Described heating plate and daylight lamp are all fixed on the inwall of dust bin; Described dustproof folding is fixed on dust bin bottom, and load load plate is through dustproof folding;
Described fan part comprises blower fan, fan shroud and blower fan airduct; The outer cover of described blower fan has fan shroud; One end of the air outlet of blower fan and blower fan airduct is fixed, and the other end of blower fan airduct stretches in dust bin;
Described control system comprises industrial computer, speed probe and temperature sensor; Described speed probe is arranged on the inwall of main spindle box, and temperature sensor is arranged on the inwall of dust bin; The output terminal of described the first pull pressure sensor, the second pull pressure sensor, speed probe and temperature sensor is all connected with industrial computer; The output control terminal of described industrial computer is connected with the input end of heating plate, hydraulic cylinder Oil pump electrical machinery;
Described test head assembly is arranged in dust bin; Test parts comprises test axle, ring flange, axle sleeve and axle sleeve snap ring; One end of described test axle and the other end of buffer shaft are fixed, and the other end is bearing on a bearing seat by bearing; Described main shaft, buffer shaft and test axle coaxially arrange; The other end of described ring flange and load load plate is bolted; The inwall of described axle sleeve is connected by key with test axle, and outer wall is provided with spline; Axle sleeve is by axle sleeve snap ring axial location; The outer end of described axle sleeve is provided with the shaft shoulder.
2. a kind of simulation test machine for automobile hub bearing unit anti-dust performance according to claim 1, is characterized in that: described driving mechanism comprises drive motor, driving pulley, driven pulley and travelling belt; The output shaft of described drive motor is connected by key with driving pulley, and the input end of drive motor is connected with the output control terminal of industrial computer; Described driving pulley is connected by travelling belt with driven pulley, and described driven pulley is connected by key with main shaft.
3. a kind of simulation test machine for automobile hub bearing unit anti-dust performance according to claim 1, is characterized in that: between two arms of described loading arm, be provided with reinforcement.
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| CN201410219400.1A CN104034529B (en) | 2014-05-22 | 2014-05-22 | A kind of simulation test machine for automobile hub bearing unit anti-dust performance |
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| CN201410219400.1A CN104034529B (en) | 2014-05-22 | 2014-05-22 | A kind of simulation test machine for automobile hub bearing unit anti-dust performance |
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| CN104034529A true CN104034529A (en) | 2014-09-10 |
| CN104034529B CN104034529B (en) | 2016-07-06 |
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| CN104236922A (en) * | 2014-09-25 | 2014-12-24 | 海宁佳盛汽车零部件有限公司 | Static strength tester for hub unit |
| CN106769108A (en) * | 2017-03-17 | 2017-05-31 | 苏州华业检测技术服务有限公司 | A kind of laboratory loading device of the two-way dynamic loading of wheel hub |
| CN106959214A (en) * | 2017-04-28 | 2017-07-18 | 山东交通学院 | A kind of vehicle tyre dust behavior experimental provision |
| CN107024353A (en) * | 2017-05-11 | 2017-08-08 | 浙江省机电设计研究院有限公司 | A kind of sealed bearings combination property simulation test machine |
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| CN104236922A (en) * | 2014-09-25 | 2014-12-24 | 海宁佳盛汽车零部件有限公司 | Static strength tester for hub unit |
| CN106769108A (en) * | 2017-03-17 | 2017-05-31 | 苏州华业检测技术服务有限公司 | A kind of laboratory loading device of the two-way dynamic loading of wheel hub |
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| CN106959214A (en) * | 2017-04-28 | 2017-07-18 | 山东交通学院 | A kind of vehicle tyre dust behavior experimental provision |
| CN107024353A (en) * | 2017-05-11 | 2017-08-08 | 浙江省机电设计研究院有限公司 | A kind of sealed bearings combination property simulation test machine |
| CN107328588A (en) * | 2017-07-01 | 2017-11-07 | 山东湖西王集团有限公司 | Mud tester for automobile front axle free bearing |
| CN107328588B (en) * | 2017-07-01 | 2023-06-13 | 山东湖西王集团有限公司 | Mud testing machine for front axle knuckle bearing of automobile |
| CN108645569B (en) * | 2018-03-27 | 2019-11-08 | 江苏希西维轴承有限公司 | A kind of oscillating bearing dust cover waterproof tester |
| CN108645569A (en) * | 2018-03-27 | 2018-10-12 | 江苏希西维轴承有限公司 | A kind of oscillating bearing dust cover waterproof tester |
| CN109115517A (en) * | 2018-09-03 | 2019-01-01 | 重庆长江轴承股份有限公司 | Automotive hub bearing dynamic vibration durable test stand |
| CN109115517B (en) * | 2018-09-03 | 2024-05-03 | 重庆长江轴承股份有限公司 | Dynamic vibration endurance test bed for car hub bearing |
| CN111855203A (en) * | 2019-04-08 | 2020-10-30 | 杭州盾航轴承技术有限公司 | Steering bearing dynamic durability test device |
| CN111855203B (en) * | 2019-04-08 | 2021-12-24 | 杭州盾航轴承技术有限公司 | Steering bearing dynamic durability test device |
| CN110230769A (en) * | 2019-05-14 | 2019-09-13 | 杭州电子科技大学 | A kind of two-sided greasing gland all-in-one machine of bearing and its greasing gland method |
| CN111595521A (en) * | 2020-05-26 | 2020-08-28 | 海南热带汽车试验有限公司 | Dust hole for automobile dust tightness test |
| CN111595521B (en) * | 2020-05-26 | 2022-04-29 | 海南热带汽车试验有限公司 | Dust hole for automobile dust tightness test |
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