CN104034529B - A kind of simulation test machine for automobile hub bearing unit anti-dust performance - Google Patents

A kind of simulation test machine for automobile hub bearing unit anti-dust performance Download PDF

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Publication number
CN104034529B
CN104034529B CN201410219400.1A CN201410219400A CN104034529B CN 104034529 B CN104034529 B CN 104034529B CN 201410219400 A CN201410219400 A CN 201410219400A CN 104034529 B CN104034529 B CN 104034529B
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China
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bearing
load
fixed
dust
oil cylinder
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CN104034529A (en
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吴参
董浙广
倪敬
龚友平
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Hangzhou Dianzi University
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Hangzhou Dianzi University
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Abstract

The invention discloses a kind of simulation test machine for automobile hub bearing unit anti-dust performance.China's automobile hub bearing is based on the third generation, and traditional anti-dust performance testing machine cannot simulate the sealing and dustproof operating mode in actual vehicle driving process.The present invention includes driving mechanism, drive mechanism, load maintainer, dust bin parts, fan part, control system and test parts;Main shaft is driven by driving mechanism, and buffer shaft and main shaft are fixed;The piston of axial load oil cylinder is fixed by the first pull pressure sensor and the first oscillating bearing;First oscillating bearing and the first clutch collar pass through hinge;First clutch collar and loading arm are all fixed with load load plate, and loading arm and the second clutch collar are fixed, and the second clutch collar and second joint bearing pass through hinge;One end of second pull pressure sensor and second joint bearing are fixed, and the piston of the other end and radial loaded oil cylinder is fixed.The present invention is applicable to all kinds of automobile hub bearings, can simulate hub bearing complex load situation.

Description

A kind of simulation test machine for automobile hub bearing unit anti-dust performance
Technical field
The invention belongs to Bearing testing technical 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 working 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 is based on the third generation, compared with common double-row angular contact bal bearing and double-row conical bearing, maximum is distinctive in that its inner and outer ring is respectively integrated with a ring flange.The external anti-dust performance to hub bearing is studied relatively early, the international bearing giant such as SKF, TIMKEN has been developed for the anti-dust performance testing stand for hub bearing, but its price is high, and owing to 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, hub bearing anti-dust performance testing machine common in industry is generally based on plain bearing anti-dust performance testing machine and improves, it is impossible to adapt to the hub bearing flange that specification is numerous.On the other hand, automobile hub bearing is axial except bearing in the running of automobile, outside radial load, due to camber angle, the impact at tyre toe-in angle etc. is additionally subjected to the effect of a moment of flexure, especially when the vehicle is turning, moment of flexure sharply strengthens, make the inner ring of hub bearing, outer ring is not coaxial, anti-dust performance under this operating mode is totally different from general state, therefore the sealing and dustproof operating mode in actual vehicle driving process cannot be simulated with traditional anti-dust performance testing machine, need one badly and can be applicable to all kinds of hub bearings, and hub bearing can be simulated radially, axially, the automobile hub bearing unit anti-dust performance testing machine of moment of flexure complex load situation.
Summary of the invention:
It is an object of the invention to for the deficiencies in the prior art, it is proposed to a kind of simulation test machine for automobile hub bearing unit anti-dust performance, it is possible to suitable in all kinds of automobile hub bearings, and hub bearing complex load situation can be simulated.
The present invention includes driving mechanism, drive mechanism, load maintainer, dust bin parts, fan part, control system and test parts.
Described drive mechanism includes main shaft, main spindle box, buffer shaft and shaft coupling;Described main shaft is driven by driving mechanism, and is bearing on two bearing blocks respectively by two bearings, and two bearing blocks 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 includes axial load oil cylinder, the fixing plate of oil cylinder, 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 is bolted with the fixing plate of oil cylinder, and one end of piston crown and the first pull pressure sensor is bolted;The piston of axial load oil cylinder is arranged with main axis parallel;The fixing plate of described oil cylinder is fixed with regulator cubicle;The other end and first oscillating bearing of described first pull pressure sensor are bolted;The first described oscillating bearing and the first clutch collar pass through hinge;One 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 pass through hinge;One end of described 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 and main shaft are vertically arranged;The T-slot that described cylinder pedestal and adjustment block are offered is bolted, and the axis of T-slot and main shaft be arranged in parallel;Described adjustment block is fixed on cradle top, and the bottom of support and regulator cubicle are fixed.
Described dust bin parts include dust bin, hot plate, daylight lamp and dust-proof folding;Described hot plate and daylight lamp are each attached on the inwall of dust bin;Described dust-proof folding is fixed on bottom dust bin, the dust-proof folding of traverse of load load plate.
Described fan part includes blower fan, fan shroud and blower fan airduct;The outside of described blower fan is cased with 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 includes 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 outfan 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 of hot plate, hydraulic cylinder Oil pump electrical machinery.
Described test head assembly is arranged in dust bin;Test parts includes test axle, ring flange, axle sleeve and axle sleeve snap ring;Described one end of test axle and the other end of buffer shaft are fixed, and the other end is bearing on a bearing block by bearing;Described main shaft, buffer shaft and test axle are coaxially disposed;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 axially positioned by axle sleeve snap ring;The outer end of described axle sleeve is provided with the shaft shoulder.
Described driving mechanism includes drive motor, driving pulley, driven pulley and conveyer belt;The output shaft of described drive motor is connected by key with driving pulley, and the input of drive motor is connected with the output control terminal of industrial computer;Described driving pulley is connected by conveyer belt with driven pulley, and described driven pulley is connected by key with main shaft.
It is provided with reinforcement between the two-arm of described loading arm.
Beneficial effects 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 the deformation and deflection by load load plate makes hub bearing Internal and external cycle axis form dislocation, test bearing situation loaded is made to be closer to the true stand under load of automobile hub bearing;Present invention application hydraulic loaded mode, the input can composed by numerical value road, simulate the time-varying radial load excitation that actual road surface produces and the time-varying axial load excitation derived from, change the size of moment of flexure simultaneously by adjusting radial load loading position;The present invention is directed to the ring flange of hub bearing and devise special hub bearing clamping mechanism, can be suitably used for all kinds of third generation automobile hub bearing.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the top view of Fig. 1;
Fig. 4 is the sectional view of dust box part and test parts in the present invention.
Detailed description of the invention
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, including driving mechanism, drive mechanism, load maintainer, dust bin parts, fan part, control system and test parts.
Driving mechanism includes drive motor 1, driving pulley 2, driven pulley 3 and conveyer belt 4;The output shaft of drive motor 1 is connected by key with driving pulley 2, and driving pulley 2 is connected by conveyer belt 4 with driven pulley 3;
Drive mechanism includes 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 on two bearing blocks 9 respectively by two bearings, and two bearing blocks 9 are all fixed 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 includes axial load oil cylinder 11, fixing plate the 12, first pull pressure sensor the 13, first oscillating bearing the 14, first clutch collar 15 of oil cylinder, loading arm the 16, second clutch collar 17, second joint bearing the 18, 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 is bolted with the fixing plate 12 of oil cylinder, 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;The fixing plate 12 of oil cylinder is fixed with regulator cubicle 24;The other end and first oscillating bearing 14 of the first pull pressure sensor 13 are bolted;First oscillating bearing 14 and the first clutch collar 15 are hinged by bearing pin 25;One 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 passes through first pull pressure sensor the 13, first oscillating bearing 14 and the first clutch collar 15 to load load plate 15 imposed load so that load load plate 15 produces bending;Loading arm 16 is L-shaped, is provided with reinforcement between two-arm;Another arm and second clutch collar 17 of loading arm 16 are fixed, and the second clutch collar 17 and second joint bearing 18 are hinged by bearing pin 25;One end of 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 piston of radial loaded oil cylinder 20 and main shaft 5 are vertically arranged;The T-slot that cylinder pedestal 21 and adjustment block 22 are offered is bolted, and the axis of T-slot and main shaft 5 be arranged in parallel, adjusts bolt position in T-slot and realizes the position adjustment of radial loaded oil cylinder 20;Adjustment block 22 is fixed on support 26 top, and the bottom of support 26 is fixed with regulator cubicle 24.
Such as Fig. 1, shown in 3 and 4, dust bin parts include dust bin 27, hot plate 28, daylight lamp 29 and dust-proof folding 30.Hot plate 28 and daylight lamp 29 are each attached on the inwall of dust bin 27;Daylight lamp 29 plays a role in lighting.Dust-proof folding 30 is fixed on bottom dust bin 27, and load load plate 23 is through dust-proof folding 30, and the effect sealing dust bin 27 is played in dust-proof folding 30.
As shown in Figures 2 and 3, fan part includes blower fan 31, fan shroud 32 and blower fan airduct 33;The outside of blower fan 31 is cased with 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, to the internal blowing of dust bin 26.
Control system includes 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 outfan of first pull pressure sensor the 13, 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 hot plate 28, the input of drive motor 1 and the input of hydraulic cylinder Oil pump electrical machinery;Control hot 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 signal is also transferred to industrial computer;The information that first pull pressure sensor the 13, second pull pressure sensor 19, speed probe 34 and temperature sensor 35 are gathered by industrial computer processes and makes feedback control, thus realizing 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 includes test axle 36, ring flange 37, axle sleeve 38 and axle sleeve snap ring 39;One end of test axle 36 is fixed with the other end of buffer shaft 7, and the other end is bearing on a bearing block 9 by bearing;Main shaft 5, buffer shaft 7 and test axle 36 are coaxially disposed;The other end of ring flange 37 and load load plate 23 is bolted;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 axially positioned by axle sleeve snap ring 39;The outer end of axle sleeve 38 is provided with shaft shoulder 38-1.
The operation principle of this simulation test machine for automobile hub bearing unit anti-dust performance:
The flange portions of test hub bearing 40 being fixed with ring flange 37, the spline of axle sleeve 38 outer wall is connected with the spline of test hub bearing 40 inwall, and the shaft shoulder 38-1 of axle sleeve compresses test hub bearing 40, and axle sleeve snap ring 39 realizes the axial location of axle sleeve 38;Adjust the position of axially loaded oil cylinder 11 and radial loaded oil cylinder 20 so that it is Pass Test requirement, and in dust bin 27, load dust medium according to test requirements document.Start industrial computer, axial, the radial load loading procedure that input test is required, speed of mainshaft program, experiment scheme design case temperature and cycle-index;Loaded load and the speed of mainshaft are non-constant;Starting drive motor, blower motor and hydraulic cylinder Oil pump electrical machinery, main shaft 5, buffer shaft 7 and test axle 36 start to rotate, and the inner ring of motoring ring test hub bearing 40 rotates;Load from load load plate 23 is loaded to the outer ring of test hub bearing 40 by ring flange 37, simultaneously works as the effect of fixation test hub bearing 40 outer ring;Blower fan 31 starts to ventilate in dust bin 27 so that the dust in dust bin 27 is relatively evenly distributed, and hot plate 28 begins to warm up, and the temperature in dust bin 27 is monitored in temperature sensor 35, and industrial computer regulates hot plate 28 in real time, makes test temperature maintain 125~135 DEG C;When reaching test cycle number of times, testing machine is automatically stopped operation, industrial computer food preservation test machine data;Now wait that testing machine unloads completely, cut off testing machine power supply, and wait until that test hub bearing 40 temperature opens dust bin 27 after being reduced to room temperature, unload test axle 36 and test hub bearing 40, manually take test hub bearing 40 apart, the internal dust of checkout facility hub bearing 40 enters situation, off-test.

Claims (3)

1. a simulation test machine for automobile hub bearing unit anti-dust performance, including driving mechanism, drive mechanism, load maintainer, dust bin parts, fan part, control system and test parts, it is characterised in that:
Described drive mechanism includes main shaft, main spindle box, buffer shaft and shaft coupling;Described main shaft is driven by driving mechanism, and is bearing on two bearing blocks respectively by two bearings, and two bearing blocks 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 includes axial load oil cylinder, the fixing plate of oil cylinder, 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 is bolted with the fixing plate of oil cylinder, and one end of piston crown and the first pull pressure sensor is bolted;The piston of axial load oil cylinder is arranged with main axis parallel;The fixing plate of described oil cylinder is fixed with regulator cubicle;The other end and first oscillating bearing of described first pull pressure sensor are bolted;The first described oscillating bearing and the first clutch collar pass through hinge;One 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 pass through hinge;One end of described 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 and cylinder pedestal are bolted;The piston of radial loaded oil cylinder and main shaft are vertically arranged;The T-slot that described cylinder pedestal and adjustment block are offered is bolted, and the axis of T-slot and main shaft be arranged in parallel;Described adjustment block is fixed on cradle top, and the bottom of support and regulator cubicle are fixed;
Described dust bin parts include dust bin, hot plate, daylight lamp and dust-proof folding;Described hot plate and daylight lamp are each attached on the inwall of dust bin;Described dust-proof folding is fixed on bottom dust bin, the dust-proof folding of traverse of load load plate;
Described fan part includes blower fan, fan shroud and blower fan airduct;The outside of described blower fan is cased with 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 includes 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 outfan 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 of hot plate, hydraulic cylinder Oil pump electrical machinery;
Test parts is arranged in dust bin;Test parts includes test axle, ring flange, axle sleeve and axle sleeve snap ring;Described one end of test axle and the other end of buffer shaft are fixed, and the other end is bearing on a bearing block by bearing;Described main shaft, buffer shaft and test axle are coaxially disposed;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 axially positioned by axle sleeve snap ring;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, it is characterised in that: described driving mechanism includes drive motor, driving pulley, driven pulley and conveyer belt;The output shaft of described drive motor is connected by key with driving pulley, and the input of drive motor is connected with the output control terminal of industrial computer;Described driving pulley is connected by conveyer 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, it is characterised in that: it is provided with reinforcement between the two-arm of described loading arm.
CN201410219400.1A 2014-05-22 2014-05-22 A kind of simulation test machine for automobile hub bearing unit anti-dust performance Expired - Fee Related CN104034529B (en)

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