CN100514025C - Simulation test machine for automobile hub bearing unit anti-dust performance and test method thereof - Google Patents
Simulation test machine for automobile hub bearing unit anti-dust performance and test method thereof Download PDFInfo
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- CN100514025C CN100514025C CNB2007100679417A CN200710067941A CN100514025C CN 100514025 C CN100514025 C CN 100514025C CN B2007100679417 A CNB2007100679417 A CN B2007100679417A CN 200710067941 A CN200710067941 A CN 200710067941A CN 100514025 C CN100514025 C CN 100514025C
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Abstract
The present invention relates to a simulated tester of the unit dust preventing property of an automobile bush bearing. The simulated tester includes a dust box, a wind pipe, a fan, a loading mechanism, a testing head part, a drive part, a machine body, an electric system and a control system; the dust box which communicates with the wind pipe, the fan and the testing head part is provided with a liner, a cover board, a folding shield and a temperature sensor; a heat preserving layer is provided on the liner and a heating board is positioned under the dust box; the temperature sensor is used for measuring the temperature in the dust box; the loading mechanism is connected with the test head part for providing the load and moment for the testing; the drive part and the test head part are connected for providing power for the testing; the electric system provides power source and electric protection and the control system is used for monitoring the running state of the machine and for setting the testing parameters and for feeding back of the control duly. The simulated tester in the present which has a reasonable design and a compact structure can set the parameters of the testing temperature, the testing sandblast, the times of circling, etc. and the testing process is intelligent, accurate, intuitionistic and quick.
Description
Technical field:
The present invention relates to a kind of simulation test machine for automobile hub bearing unit anti-dust performance and test method thereof, mainly be applicable to the simulation test and the evaluation of automobile hub bearing unit anti-dust performance.
Background technology:
Automobile hub bearing is one of key components and parts in the automobile, and it is used in an important use position of automobile, is the important component of wheel alignment.Developed in the world now the 5th generation product, promptly HUB, SPINDLE, abs sensor and bearing become one, and China still is in the development of third generation product at present.Guarantee as the normal operation of automobile, automobile hub bearing except withstanding the test at random that load such as cornering force, braking impulsive force, driving force and rotation speed change bring, also must withstand the baptism from rugged surroundings such as dust storm, mud, high temperature, low temperature in the process of using.The life-span that requires hub-bearing unit abroad is 10 years or 160,000 kilometers, and the domestic hub bearing life-span is less than its half.Along with the continuous lifting of automotive performance, also more and more higher to the anti-dust performance requirement of automobile hub bearing.Domestic automobile hub bearing manufacturing enterprise has also begun to pay attention to these important performance index of anti-dust performance, but have only external a few bearing power that the anti-dust performance of automobile hub bearing is possessed some special knowledge at present and have relevant testing equipment, but the price of experimental facilities is extremely expensive.At home, also do not use such testing equipment at present.
Summary of the invention:
Technical matters to be solved by this invention is to overcome the deficiency that exists in the existing domestic technique, and a kind of precision and good stability, low, the intelligent degree height of cost, simulation test machine for automobile hub bearing unit anti-dust performance and test method thereof convenient to use are provided.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: this simulation test machine for automobile hub bearing unit anti-dust performance; it is characterized in that being provided with dust bin; airduct; blower fan; load maintainer; test head assembly; power part; fuselage; electrical system and control system; dust bin; blower fan; load maintainer; test head assembly; power part is installed on the fuselage; blower fan is installed in the below of dust bin; one end of airduct is connected with dust bin; the other end of airduct is connected with blower fan; dust bin and airduct; blower fan; test head assembly is interconnected; dust bin is provided with inner bag; cover plate; heating plate; folding protective cover and temperature sensor; inner bag is provided with one deck heat-insulation layer; heating plate is arranged on the dust bin bottom; temperature sensor is used for measuring dust the temperature inside the box and outputs to control system; folding protective cover is used for preventing the leakage of interior heat of dust bin and dust medium; load maintainer is connected with test head assembly; needed load of test and moment are provided; power part links to each other with test head assembly; the test required drive is provided; electrical system provides electrical source of power and electric protection; control system and dust bin; blower fan; load maintainer; test head assembly; power part all is connected with electrical system; control system is used for monitoring the running status of machine and test parameters is programmed, and carries out Control and Feedback in good time.
Load maintainer of the present invention is provided with the loading handwheel, trapezoidal screw, trapezoidal screw, central shaft, loading spring, S type LOAD CELLS, ram, load bar, guide pole, boosting-rod, screw mandrel, linear bearing, loading handwheel is connected with the trapezoidal screw coupling, between trapezoidal screw and the central shaft linear bearing is installed, be used for effectively reducing the friction force of rotating and moving and produce, trapezoidal screw is fixedly mounted on the fuselage, loading spring is enclosed within on the central shaft, central shaft respectively with S type LOAD CELLS, the connection of raming, ram and be connected with load bar, load bar is connected with boosting-rod, trapezoidal screw with the interaction of trapezoidal screw under, the compression-loaded spring, apply predetermined load, loading spring comprises greatly, the spring of little two suits, S type LOAD CELLS is used for measuring the size of institute's imposed load and outputing to control system, ram and be used for realizing the transmission of load between S type LOAD CELLS and the load bar, guide pole is used for preventing that central shaft from rotating, screw mandrel is used for moving radially easily load maintainer, the length that has the boosting-rod of telescopic by adjustment, thereby adjust to load predetermined test moment, boosting-rod is connected with test bearing and is provided with folding protective cover.
Test head assembly of the present invention is provided with web joint, holder and test mandrel, and test bearing is connected with load maintainer by web joint, obtains test load and test moment.
Control system of the present invention is provided with industrial control computer, realizes programming Control and adjusting to test condition, to the obtaining and handling of temperature signal, load signal, and carries out Control and Feedback in good time.
The present invention solves the problems of the technologies described above the test method that the technical scheme that is adopted also comprises a kind of aforesaid simulation test machine for automobile hub bearing unit anti-dust performance, it is characterized in that may further comprise the steps: test is prepared, electrical system, control system start, starter motor, extension set begin test, test load is loaded on and presets load, wait for that test period and cycle index reach preset time respectively and preset number of times, the storage test findings, stop motor, blower fan, unloading, close electrical system, control system, take off test bearing and test mandrel.
The present invention is reasonable in design, compact conformation, test are accurate, and parameters such as test temperature, test sandblast, cycle index, test period can accurately be set, test process intelligence, accurately, directly perceived, fast.
Fig. 1 is the front elevational schematic of the embodiment of the invention.
Fig. 2 is the schematic top plan view of the embodiment of the invention.
Fig. 3 looks synoptic diagram for the left side of the embodiment of the invention.
Fig. 4 is the front elevational schematic of embodiment of the invention dust bin.
Fig. 5 looks synoptic diagram for the left side of embodiment of the invention dust bin.
Fig. 6 is the schematic top plan view of embodiment of the invention load maintainer.
Fig. 7 is the front elevational schematic of embodiment of the invention loading structure.
The control flow chart of Fig. 8 embodiment of the invention.
In Fig. 1～7: 1-dust bin, 2-blower fan, 3-load maintainer, 4-test head assembly, 5-power part, 6-fuselage, 8-electric control box, 9-inner bag, 10-cover plate, 11-heat-insulation layer, 12-heating plate, 13-folding protective cover, 14-temperature sensor, 15-airduct, 16-blower motor, 18-loading handwheel, 19-trapezoidal screw, 20-trapezoidal screw, 21-central shaft, 22-loading spring, 23-S type LOAD CELLS, 24-ram, 25-load bar, 26-guide pole, 27-boosting-rod, 28-screw mandrel, 29-web joint, 30-holder, 31-test mandrel, 32-test bearing, 33-linear bearing.
Embodiment:
Referring to Fig. 1～Fig. 7; embodiment of the invention simulation test machine for automobile hub bearing unit anti-dust performance is provided with dust bin 1; blower fan 2; load maintainer 3; test head assembly 4; power part 5; fuselage 6 and electric control box 8; electrical system and control system are installed in the electric control box 8; the duty of electrical system and control system shows on the top of electric control box 8; dust bin 1; blower fan 2; load maintainer 3; test head assembly 4; power part 5 is installed on the fuselage 6; blower fan 2 is installed in the below of dust bin 1; one end of airduct 15 is connected with dust bin 1; the other end of airduct 15 is connected with blower fan 2; dust bin 1 and blower fan 2; airduct 15; test head assembly 4 is interconnected; blower fan 2 is provided with blower motor 16; transmission shaft; impeller; dust in the dust bin 1 and temperature environment are delivered to test head assembly 4; needed dust of test and temperature environment are provided; load maintainer 3 is connected with test head assembly 4; needed load of test and moment are provided; power part 5 links to each other with test head assembly 4; power part 5 comprises main shaft and motor; the test required drive is provided; motor can adopt common electric machine; the combination of variable-frequency motor or frequency converter and motor; electrical system provides electrical source of power and electric protection; control system and dust bin 1; blower fan 2; load maintainer 3; test head assembly 4; power part 5 all is connected with electrical system; control system is used for monitoring the running status of present embodiment and test parameters is programmed, and carries out Control and Feedback according to the result of test parameters and running status in good time.
The dust bin 1 of the embodiment of the invention is provided with inner bag 9, cover plate 10, heating plate 12, folding protective cover 13 and temperature sensor 14, inner bag 9 is provided with one deck heat-insulation layer 11, play the effect of insulation, heating plate 12 is installed in dust bin 1 bottom, play the effect of heat cycles air and dust medium, temperature sensor 14 is connected with control system, be used for measuring dust bin 1 interior temperature and output to control system, folding protective cover 13 is installed on the load maintainer 3, is used for reducing effectively the leakage of heat and dust medium in the dust bin 1.
The load maintainer 3 of the embodiment of the invention is provided with and loads handwheel 18, trapezoidal screw 19, trapezoidal screw 20, central shaft 21, loading spring 22, S type LOAD CELLS 23, ram 24, load bar 25, guide pole 26, boosting-rod 27, screw mandrel 28 and linear bearing 33, handwheel 18 is fixed together by key and nut and trapezoidal screw 19, between trapezoidal screw 19 and the central shaft 21 linear bearing 33 is installed, the tight clearance fit of trapezoidal screw 20 and linear bearing 33 outer rings, linear bearing 33 inner rings and central shaft 21 tight clearance fit, trapezoidal screw 20 is fixed on the fuselage 6, loading spring 22 is enclosed within on the central shaft 21, central shaft 21 by screw respectively with S type LOAD CELLS 23, ram and 24 connect, ram 24 by 25 connections of screw load bar, load bar 25 is connected with boosting-rod 27 by hinge.Rotate loading handwheel 18 and can drive trapezoidal screw 19 rotations, linear bearing 33 is used for effectively reducing the friction force of rotating and moving and produce, trapezoidal screw 19 with the interaction of trapezoidal screw 20 under, compression-loaded spring 22, apply predetermined load, loading spring 22 comprises greatly, the spring of little two suits, S type LOAD CELLS 23 is used for measuring the size of institute's imposed load and outputing to control system, 24 transmission that are used for realizing load between S type LOAD CELLS 23 and the load bar 25 of raming, guide pole 26 is used to prevent that central shaft 21 from rotating, screw mandrel 28 is used for moving radially easily load maintainer 3, the length that has the boosting-rod 27 of telescopic by adjustment, thereby adjust to load predetermined test moment (unbalance loading), boosting-rod 27 is connected with test bearing 32 and is provided with and folds protective cover 13.
The test head assembly 4 of the embodiment of the invention is provided with web joint 29, holder 30 and test mandrel 31, test bearing 32 is connected with load maintainer 3 by bolt, cushion block, web joint 29, obtain test load and test moment, test bearing 32 is connected with test mandrel 31 by bolt, key, holder 30, obtains the needed power of test.
The control system of the embodiment of the invention is provided with industrial control computer, realization is to the control and the adjusting of motor test rotating speed, accept temperature sensor 14 temperature signal, S type LOAD CELLS 23 load signal and handle, and carry out Control and Feedback according to test situation.
The inside diameter ranges of embodiment of the invention test bearing 32 is φ 20～φ 60mm; The range of speeds of test bearing 32 is 500～3000r/min; The maximum axial of test bearing 32 is 5kN, and loading error should be less than ± 2%; The temperature range of dust bin 1 is 20～160 ℃, temperature error ± 5 ℃.
Referring to Fig. 8, the present invention solves the problems of the technologies described above the test method that the technical scheme that is adopted also comprises a kind of aforesaid simulation test machine for automobile hub bearing unit anti-dust performance, may further comprise the steps: test is prepared, electrical system, control system starts, starter motor, blower fan 2 begins test, test load F is loaded on and presets load F0, wait for that test period T and cycle index M reach preset time T0 respectively and preset number of times M0, the storage test findings, stop motor, blower fan 2, electrical system is closed in unloading, control system is taken off test bearing 32 and test mandrel 31.
Test preliminary work comprises: the installation of test mandrel 31, the installation of test bearing 32 and operations such as adjustment fixing, load maintainer 3 positions.At first will test pack into the main shaft of power part 5 of mandrel 31, with bolt and holder 30 test bearing 32 is fixedly connected on the test mandrel 31, and use screw in compression, test bearing 32 and test mandrel 31 are become one, test bearing 32 is connected with boosting-rod 27 with web joint 29 with bolt, load bar 25 is connected with boosting-rod 27, adjust the position of load maintainer 3 with hinge, make boosting-rod 27 flexible, test dust is added in the dust bin 1 to predetermined length.
Electrical system, the control system startup comprises: energized, the initialization of industrial control computer, the setting of industrial control computer, in industrial control computer, its Information is carried out date of test, the test bearing model, the test bearing numbering, overlooker's name, the initialization of information such as test speed N, test temperature to test bearing 32, sandblast, test period T, cycle index M, test speed N, parameters such as test load F are programmed, motor (or frequency converter) is carried out initialization, whether the check test machine is in normal condition then, whether wiring everywhere is correctly firm, whether the test parameters setting is correct, adjusts until all normal when undesired.
Starter motor, blower fan 2 begin test then, and test load F is loaded on and presets load F
0Comprise: rotate and load handwheel 18, test load F is added to preset load F
0
During test, industrial control computer is monitored process of the test, when test period T and cycle index M reach preset time T respectively
0With preset number of times M
0The time, the storage test findings stops motor, blower fan 2 and main shaft, oppositely shakes and loads handwheel 18, unloads, and closes electrical system and control system, takes off test bearing 32 and test mandrel 31, off-test etc. dust bin 1 temperature after reducing.
The foundation of test method of the present invention is as follows:
Automobile hub bearing unit anti-dust performance is meant that it turns round in the environment that dust flies upward, bearing unit itself can prevent that dust granule from invading its inner ability.Automobile hub bearing unit anti-dust performance is meant and is placed in the specific dust environment,, whether enters bearing unit and enters the test that its inner situation is differentiated its anti-dust performance according to dust granule after a period of time with the rotating speed set and load operation.Single cover automobile hub bearing unit anti-dust performance standards of grading of the present invention are as shown in table 1.The final inspection of the bearing sample after the present invention test carries out with reference to industry standard SH/T0336 (microscopic method), takes a sample respectively from proof bearing sample two ends simultaneously, and comparison check draws dust intrusion amount.
The single cover of table 1 automobile hub bearing unit anti-dust performance standards of grading
| Dustproof grade | Railway grease sample variable color situation and microscope amplify 100 times of check results | Single cover test bearing scoring Di (i=1,2 ... 10) |
| 1 | The railway grease sample is a primary colors, is full transparence, microexamination free from |
10 |
| 2 | The railway grease sample is a primary colors, is full transparence, and microexamination has the dust media particle to exist | 8 |
| 3 | Railway grease sample major part is a primary colors, and fraction begins variable color, and shape is translucent | 6 |
| 4 | The most of variable color of railway grease sample, fraction is a primary colors, the |
4 |
| 5 | The full variable color of railway grease sample is black, opaque shape | 2 |
| 6 | The full variable color of railway grease sample is black, opaque shape, and bearing clearance enlarges markedly | 0 |
Claims (5)
1; a kind of simulation test machine for automobile hub bearing unit anti-dust performance; it is characterized in that: be provided with dust bin; airduct; blower fan; load maintainer; test head assembly; power part; fuselage; electrical system and control system; dust bin; blower fan; load maintainer; test head assembly; power part is installed on the fuselage; blower fan is installed in the below of dust bin; one end of airduct is connected with dust bin; the other end of airduct is connected with blower fan; dust bin and airduct; blower fan; test head assembly is interconnected; dust bin is provided with inner bag; cover plate; heating plate; folding protective cover and temperature sensor; inner bag is provided with one deck heat-insulation layer; heating plate is arranged on the dust bin bottom; temperature sensor is used for measuring dust the temperature inside the box and outputs to control system; folding protective cover is used for preventing the leakage of interior heat of dust bin and dust medium; load maintainer is connected with test head assembly; needed load of test and moment are provided; power part links to each other with test head assembly; the test required drive is provided; electrical system provides electrical source of power and electric protection; control system and dust bin; blower fan; load maintainer; test head assembly; power part all is connected with electrical system; control system is used for monitoring the running status of machine and test parameters is programmed, and carries out Control and Feedback in good time.
2, simulation test machine for automobile hub bearing unit anti-dust performance according to claim 1, it is characterized in that: described load maintainer is provided with the loading handwheel, trapezoidal screw, trapezoidal screw, central shaft, loading spring, S type LOAD CELLS, ram, load bar, guide pole, boosting-rod, screw mandrel, linear bearing, loading handwheel is connected with the trapezoidal screw coupling, between trapezoidal screw and the central shaft linear bearing is installed, be used for effectively reducing the friction force of rotating and moving and produce, trapezoidal screw is fixedly mounted on the fuselage, loading spring is enclosed within on the central shaft, central shaft respectively with S type LOAD CELLS, the connection of raming, ram and be connected with load bar, load bar is connected with boosting-rod, trapezoidal screw with the interaction of trapezoidal screw under, the compression-loaded spring, apply predetermined load, loading spring comprises greatly, the spring of little two suits, S type LOAD CELLS is used for measuring the size of institute's imposed load and outputing to control system, ram and be used for realizing the transmission of load between S type LOAD CELLS and the load bar, guide pole is used for preventing that central shaft from rotating, screw mandrel is used for moving radially easily load maintainer, the length that has the boosting-rod of telescopic by adjustment, thereby adjust to load predetermined test moment, boosting-rod is connected with test bearing and is provided with folding protective cover.
3, simulation test machine for automobile hub bearing unit anti-dust performance according to claim 1, it is characterized in that: described test head assembly is provided with web joint, holder and test mandrel, test bearing is connected with load maintainer by web joint, obtains test load and test moment.
4, simulation test machine for automobile hub bearing unit anti-dust performance according to claim 1, it is characterized in that: control system is provided with industrial control computer, realization is to the programming Control and the adjusting of test condition, to the obtaining and handling of temperature signal, load signal, and carry out Control and Feedback in good time.
5, a kind of test method of simulation test machine for automobile hub bearing unit anti-dust performance as claimed in claim 3, it is characterized in that: may further comprise the steps: test is prepared, electrical system, control system start, starter motor, blower fan begin test, test load is loaded on and presets load, wait for that test period and cycle index reach preset time respectively and preset number of times, the storage test findings, stop motor, blower fan, unloading, close electrical system, control system, take off test bearing and test mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100679417A CN100514025C (en) | 2007-04-10 | 2007-04-10 | Simulation test machine for automobile hub bearing unit anti-dust performance and test method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100679417A CN100514025C (en) | 2007-04-10 | 2007-04-10 | Simulation test machine for automobile hub bearing unit anti-dust performance and test method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101038237A CN101038237A (en) | 2007-09-19 |
| CN100514025C true CN100514025C (en) | 2009-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100679417A Expired - Fee Related CN100514025C (en) | 2007-04-10 | 2007-04-10 | Simulation test machine for automobile hub bearing unit anti-dust performance and test method thereof |
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| CN (1) | CN100514025C (en) |
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| CN103063434A (en) * | 2012-12-28 | 2013-04-24 | 瓦房店轴承集团有限责任公司 | Automobile hub bearing multifunctional testing machine |
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| CN109827773A (en) * | 2018-12-25 | 2019-05-31 | 慈兴集团有限公司 | A kind of driving motor for electric automobile bearing testing device and test method |
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-
2007
- 2007-04-10 CN CNB2007100679417A patent/CN100514025C/en not_active Expired - Fee Related
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| CN101038237A (en) | 2007-09-19 |
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