CN101430245A - Dynamic simulation test method and testing machine for plastic support bearing used for suspension - Google Patents
Dynamic simulation test method and testing machine for plastic support bearing used for suspension Download PDFInfo
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- CN101430245A CN101430245A CNA2008102314188A CN200810231418A CN101430245A CN 101430245 A CN101430245 A CN 101430245A CN A2008102314188 A CNA2008102314188 A CN A2008102314188A CN 200810231418 A CN200810231418 A CN 200810231418A CN 101430245 A CN101430245 A CN 101430245A
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Abstract
The invention discloses a dynamic simulation test method of a plastic supporting bearing used in automobile suspension and a testing machine. The testing machine is composed of a drive unit, a loading unit, a bed and an optional environmental simulation test auxiliary unit; a transmission shafting 5 in the drive unite is fixed in a work table 16 of the bed 17, the lower end of the transmission shafting 5 is linked with a torque sensor 4, the upper end of the transmission shafting is linked with a coupling 15 and a test shaft 14 is fixed in a groove of the transmission shafting, a bearing to be tested 13 is arranged on the transmission shafting; a frame 6 is fixed on the work table, a radial loading oil cylinder 7 is horizontally fixed on the frame, a sensor 8 is arranged on the head part of the radial loading oil cylinder 7 and abuts on a loading head 9 on the side of a loading block 12, an axial loading oil cylinder 10 is vertically fixed on the frame, a sensor 11 is arranged on the head part of the axial loading oil cylinder 10 and abuts on the loading block, the loading block is arranged on the bearing to be tested; a heating test or a turbid water test can be chosen for the work table or the coupling. During test, a variable frequency motor 1 is directly connected with a reduction gear 2 to drive a multi-link mechanism 3 and converts into swing of the test shaft and drives the tested bearing, and a computer monitors the whole test process and records data.
Description
Technical field
The invention belongs to the bearing tester technical field, refer more particularly to a kind of automobile hanging with plastic support bearing used dynamic simulant test method and testing machine.
Background technology
The bearing that automobile hanging is used is plastic products, and it is configured with lower casing and inner core is formed, and is contained in during use in the automotive suspension traveller assembly, and last lower casing and inner core are formed a rotary body.
The method of testing of this class bearing and testing machine still belong to blank at home, and domestic literature is not seen the report of such bearing test as yet.Traditional method of testing and testing machine can't have been simulated the actual condition of this class bearing, do not have the method for testing of system and testing machine that its performance and life-span are tested to this class bearing, thereby influence is correctly passed judgment on bearing performance.
For researching and analysing and improve constantly the quality of this class bearing, need special testing machine to carry out testing research, and then analyze, estimate and adopt an effective measure and further improve the life-span quality of this bearing.
Summary of the invention
For addressing the above problem, wood invention provides a kind of automobile hanging with plastic support bearing used dynamic simulant test method and testing machine, can simulate the actual condition of bearing according to the testing machine of this method of testing development, performance and the life-span of test bearing under certain load and special operation condition, and utilize Computer Analysis to judge test findings.
For achieving the above object, the present invention adopts following technical scheme:
Described automobile hanging is that measured bearing is lain on the vertical test axle with plastic support bearing used dynamic simulant test method, the test axle can be done intermittent swing with drive unit, provide intermittent swing the rotation of variable-frequency motor to be converted on the test axle ± swings in 45 ° of scopes by the multi-connecting-rod mechanism in the drive unit, actual motion state with the simulation measured bearing, charger is set on measured bearing simultaneously, charger comprises axial loading and radial loaded, axially loading and radial loaded are all implemented by the loading blocks that is placed on the measured bearing, wherein axially loading is that axial force transducer is set on loading blocks, by fixing axial load cylinder axial force transducer → loading blocks → measured bearing is implemented axially to load, radial loaded is in the loading blocks side loading head to be set, the radial force sensor is set on loading head again, force transducer → loading head → loading blocks → measured bearing is radially implemented radial loaded by fixing radial loaded oil cylinder; The drive shaft system that test axle below connects disposes the friction force of torque sensor with real-time monitoring measured bearing; According to except that the proper testing state, also two kinds of simulation test states being set on worktable, a kind ofly be the simulation test state under the muddy water environment, when loading, measured bearing is sprayed the muddy water of certain mass ratio, a kind of is simulation test state under the hot environment, heat to measured bearing by heating cabinet, heating-up temperature reaches as high as 200 ℃, and temperature sensor is installed in the heating cabinet, monitoring heating cabinet temperature; Two kinds of simulation test states are born by muddy water environmental simulation test servicing unit and hot environment simulation test servicing unit respectively, and proper testing state, muddy water environmental simulation test mode, hot environment simulation test state can mutual alternative; Magnitude of load in the test process, heating cabinet temperature, muddy water injecting time, variable-frequency motor rotating speed can be tested by prior setting test procedure all by computer close-loop control.
The automobile hanging designed according to above-mentioned method of testing mainly is made of the environmental simulation test servicing unit of drive unit, charger, lathe bed and optional dress with plastic support bearing used dynamic analog test machine, the drive unit major part is installed in the lathe bed, drive shaft system in the drive unit then is fixed in the worktable of lathe bed, the drive shaft system lower end is connected with torque sensor, its upper end is connected with terminal pad, fixing vertical test axle in the groove of terminal pad, the test axle is gone up measured bearing is installed; On worktable, be useful on the framework of charger by screw retention, the center fixed radial loaded oil cylinder of framework horizontal direction, the header arrangement radial force sensor of radial loaded oil cylinder, the radial force sensor abuts against on the set loading head in loading blocks side, at the axial load cylinder of the center fixed of framework vertical direction, the header arrangement axial force transducer of axial load cylinder, axial force transducer abuts against on the loading blocks, and loading blocks is arranged on the measured bearing; Axial load cylinder and the central lines of testing axle, terminal pad and drive shaft system, optional dress environmental simulation test servicing unit on worktable or the terminal pad.
Described automobile hanging is with plastic support bearing used dynamic analog test machine, its drive unit is made of variable-frequency motor, reductor, multi-connecting-rod mechanism, torque sensor and drive shaft system, variable-frequency motor connects with reductor and is fixed on the interior dividing plate of lathe bed, be connected with the rotating disk of multi-connecting-rod mechanism on the output shaft of reductor, rotating disk connects with long connecting rod, long connecting rod connects with short connecting rod again, short connecting rod is fixed on the lower end of drive shaft system, and between drive shaft system lower end and short connecting rod, being provided with torque sensor, drive shaft system then is fixed in the worktable on the lathe bed.
Described automobile hanging is meant muddy water environmental simulation test servicing unit and hot environment simulation test servicing unit with plastic support bearing used dynamic analog test machine, its optional dress environmental simulation test servicing unit.
Described automobile hanging is with plastic support bearing used dynamic analog test machine, its muddy water environmental simulation test servicing unit is made of muddy water case, water out adapter, water supply connector, the muddy water case is fixed on the terminal pad after being enclosed between test axle and the loading blocks by seal, one side is provided with water supply connector in the upper end of muddy water case, and lower end one side of muddy water case sets out water swivel.
Described automobile hanging is with plastic support bearing used dynamic analog test machine, its hot environment simulation test servicing unit is made of heating cabinet, heating collar, heating rod, temperature sensor, heating cabinet be placed on the worktable and be looped around loading blocks and worktable between, several heating rods are set in heating cabinet, heating collar is set on the heating rod, on the heating casing temperature sensor is set.
Because adopt aforesaid technical scheme, the present invention has following superiority:
1. simulated the actual condition of bearing, test findings is truer.
2. parameters such as closed-loop control load, temperature, motor speed have strengthened the dirigibility of test.
3. owing to test, can write test routine arbitrarily and test by the prior setting program of computing machine.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation that the muddy water case is installed in the present invention additional;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the structural representation that heating cabinet is installed in the present invention additional;
Among the above-mentioned figure: 1-variable-frequency motor; 2-reductor; 3-multi-connecting-rod mechanism; 4-torque sensor; 5-drive shaft system; 6-framework; 7-radial loaded oil cylinder; 8-radial force sensor; 9-loading head; 10-axially load cylinders; 11-force transducer; 12-loading blocks; 13-measured bearing; 14-test axle; 15-terminal pad; 16-worktable; 17-lathe bed; 18-muddy water case; 19-water out adapter; 20-water supply connector; 21-heating cabinet; 22-heating collar; 23-heating rod; 24-temperature sensor.
Embodiment
Automobile hanging of the present invention is that measured bearing is lain on the vertical test axle with plastic support bearing used dynamic simulant test method, the test axle can be done intermittent swing with drive unit, provide intermittent swing the rotation of variable-frequency motor to be converted on the test axle ± swings in 45 ° of scopes by the multi-connecting-rod mechanism in the drive unit, actual motion state with the simulation measured bearing, charger is set on measured bearing simultaneously, charger comprises axial loading and radial loaded, axially loading and radial loaded are all implemented by the loading blocks that is placed on the measured bearing, wherein axially loading is that axial force transducer is set on loading blocks, by fixing axial load cylinder axial force transducer → loading blocks → measured bearing is implemented axially to load, radial loaded is in the loading blocks side loading head to be set, the radial force sensor is set on loading head again, force transducer → loading head → loading blocks → measured bearing is radially implemented radial loaded by fixing radial loaded oil cylinder; The drive shaft system that test axle below connects disposes the friction force of torque sensor with real-time monitoring measured bearing; According to except that the proper testing state, also two kinds of simulation test states being set on worktable, a kind ofly be the simulation test state under the muddy water environment, when loading, measured bearing is sprayed the muddy water of certain mass ratio, a kind of is simulation test state under the hot environment, heat to measured bearing by heating cabinet, heating-up temperature reaches as high as 200 ℃, and temperature sensor is installed in the heating cabinet, monitoring heating cabinet temperature; Two kinds of simulation test states are born by muddy water environmental simulation test servicing unit and hot environment simulation test servicing unit respectively, and proper testing state, muddy water environmental simulation test mode, hot environment simulation test state can mutual alternative; Magnitude of load in the test process, heating cabinet temperature, muddy water injecting time, variable-frequency motor rotating speed can be tested by prior setting test procedure all by computer close-loop control.
In conjunction with Fig. 1, according to the designed automobile hanging of above-mentioned method of testing with plastic support bearing used dynamic analog test machine mainly by drive unit, charger, the environmental simulation test servicing unit of lathe bed (17) and optional dress constitutes, the drive unit major part is installed in lathe bed (17) lining, drive shaft system in the drive unit (5) then is fixed in the worktable (16) of lathe bed (17), drive shaft system (5) lower end is connected with torque sensor (4), its upper end is connected with terminal pad (15), fixing vertical test axle (14) in the groove of terminal pad (15), test axle (14) are gone up measured bearing (13) are installed; Go up the framework (6) that is useful on charger by screw retention at worktable (16), the center fixed radial loaded oil cylinder (7) of framework (6) horizontal direction, the header arrangement radial force sensor (8) of radial loaded oil cylinder (7), radial force sensor (8) abuts against on the set loading head (9) in loading blocks (12) side, the axial load cylinder of center fixed (10) in framework (6) vertical direction, the header arrangement axial force transducer (11) of axial load cylinder (10), axial force transducer (11) abuts against on the loading blocks (12), and loading blocks (12) is arranged on the measured bearing (13); Axial load cylinder (10) and the central lines of testing axle (14), terminal pad (15) and drive shaft system (5), worktable (16) or terminal pad (15) are gone up optional dress environmental simulation test servicing unit.
The automobile hanging of wood invention is with plastic support bearing used dynamic analog test machine, its drive unit is by variable-frequency motor (1), reductor (2), multi-connecting-rod mechanism (3), torque sensor (4) and drive shaft system (5) constitute, variable-frequency motor (1) connects with reductor (2) and is fixed on the interior dividing plate of lathe bed (17), be connected with the rotating disk of multi-connecting-rod mechanism (3) on the output shaft of reductor (2), rotating disk connects with long connecting rod, long connecting rod connects with short connecting rod again, short connecting rod is fixed on the lower end of drive shaft system (5), and between drive shaft system (5) lower end and short connecting rod, being provided with torque sensor (4), drive shaft system (5) then is fixed in the worktable (16) on the lathe bed (17).
Automobile hanging of the present invention is meant muddy water environmental simulation test servicing unit and hot environment simulation test servicing unit with plastic support bearing used dynamic analog test machine, its optional dress environmental simulation test servicing unit.
In conjunction with Fig. 2,3, automobile hanging of the present invention is with plastic support bearing used dynamic analog test machine, its muddy water environmental simulation test servicing unit is made of muddy water case (18), water out adapter (19), water supply connector (20), muddy water case (18) is fixed on the terminal pad (15) after being enclosed between test axle (14) and the loading blocks (12) by seal, a side is provided with water supply connector (20) in the upper end of muddy water case (18), and lower end one side of muddy water case (18) sets out water swivel (19).
In conjunction with Fig. 4, automobile hanging of the present invention is with plastic support bearing used dynamic analog test machine, its hot environment simulation test servicing unit is made of heating cabinet (21), heating collar (22), heating rod (23), temperature sensor (24), heating cabinet (21) is placed on worktable (16) and goes up and be looped around between loading blocks (12) and the worktable (16), several heating rods (23) are set in heating cabinet (21), heating collar (22) is set on the heating rod (23), on heating cabinet (21) body temperature sensor (24) is set.
During test, earlier measured bearing is installed on the test axle, utilize oil cylinder that measured bearing is carried out axially and radial loaded, because the actual speed of measured bearing is not high, variable-frequency motor direct-connected reductor rear drive multi-connecting-rod mechanism also is converted to the swing of testing axle, and the test axle drives the measured bearing lower casing and swings, the last shell of measured bearing keeps static relatively, can heat when loading or the muddy water test, the test overall process realizes the computing machine automatic measuring and controlling, and the record test figure.
The direct-connected reductor of variable-frequency motor drives multi-connecting-rod mechanism by reductor, the rotation of variable-frequency motor is converted into the swing of drive shaft system.Each pole length of multi-connecting-rod mechanism can be made adjustment after as calculated, according to test request output pendulum angle.The effect of torque sensor is the moment of test total system in the process of drive shaft system swing.Terminal pad connects drive shaft system and test axle, and measured bearing is installed on the test axle.Axially load cylinder and radial loaded oil cylinder are installed on the framework respectively, apply respectively axially and radial load in measured bearing, axial load is transmitted to measured bearing by axial force transducer, loading blocks, radial load is transmitted on the loading blocks by radial force sensor, loading head, is transmitted to measured bearing again.Loading blocks and test axle are Replacement Part, can change according to the measured bearing of different model, size to get final product.
Muddy water is tested: be fixed on the terminal pad after being enclosed between test axle and the loading blocks by seal the muddy water case, the muddy water case is with a test axle reciprocally swinging, and muddy water on measured bearing, passes through the water out adapter reflow tank by the water supply connector splash again.
Heat test: heating cabinet be placed on the worktable and be looped around loading blocks and worktable between, electrically heated rod heats in the heating collar, the temperature sensor probe temperature is by computer close-loop control heating the temperature inside the box.
Testing machine structure of the present invention is simple and reliable, the test observation and control technology of application of advanced can be carried out the no worker monitor test, filled up the blank of domestic this device, the research of plastic support bearing used and assembly test is laid a good foundation for domestic automobile hanging, satisfied industry to this technology requirement, to improving the plastic support bearing used and assembly research level of automobile hanging, further improve bearing and assembly quality thereof feasible research technique is provided.
Claims (6)
1, a kind of automobile hanging is with plastic support bearing used dynamic simulant test method, it is characterized in that: this method of testing is that measured bearing is lain on the vertical test axle, the test axle can be done intermittent swing with drive unit, provide intermittent swing the rotation of variable-frequency motor to be converted on the test axle ± swings in 45 ° of scopes by the multi-connecting-rod mechanism in the drive unit, actual motion state with the simulation measured bearing, charger is set on measured bearing simultaneously, charger comprises axial loading and radial loaded, axially loading and radial loaded are all implemented by the loading blocks that is placed on the measured bearing, wherein axially loading is that axial force transducer is set on loading blocks, by fixing axial load cylinder axial force transducer → loading blocks → measured bearing is implemented axially to load, radial loaded is in the loading blocks side loading head to be set, the radial force sensor is set on loading head again, force transducer → loading head → loading blocks → measured bearing is radially implemented radial loaded by fixing radial loaded oil cylinder; The drive shaft system that test axle below connects disposes the friction force of torque sensor with real-time monitoring measured bearing; According to except that the proper testing state, also two kinds of simulation test states being set on worktable, a kind ofly be the simulation test state under the muddy water environment, when loading, measured bearing is sprayed the muddy water of certain mass ratio, a kind of is simulation test state under the hot environment, heat to measured bearing by heating cabinet, heating-up temperature reaches as high as 200 ℃, and temperature sensor is installed in the heating cabinet, monitoring heating cabinet temperature; Two kinds of simulation test states are born by muddy water environmental simulation test servicing unit and hot environment simulation test servicing unit respectively, and proper testing state, muddy water environmental simulation test mode, hot environment simulation test state can mutual alternative; Magnitude of load in the test process, heating cabinet temperature, muddy water injecting time, variable-frequency motor rotating speed can be tested by prior setting test procedure all by computer close-loop control.
2, a kind of automobile hanging is with plastic support bearing used dynamic analog test machine, it is characterized in that: this testing machine is mainly by drive unit, charger, the environmental simulation test servicing unit of lathe bed (17) and optional dress constitutes, the drive unit major part is installed in lathe bed (17) lining, drive shaft system in the drive unit (5) then is fixed in the worktable (16) of lathe bed (17), drive shaft system (5) lower end is connected with torque sensor (4), its upper end is connected with terminal pad (15), fixing vertical test axle (14) in the groove of terminal pad (15), test axle (14) are gone up measured bearing (13) are installed; Go up the framework (6) that is useful on charger by screw retention at worktable (16), the center fixed radial loaded oil cylinder (7) of framework (6) horizontal direction, the header arrangement radial force sensor (8) of radial loaded oil cylinder (7), radial force sensor (8) abuts against on the set loading head (9) in loading blocks (12) side, the axial load cylinder of center fixed (10) in framework (6) vertical direction, the header arrangement axial force transducer (11) of axial load cylinder (10), axial force transducer (11) abuts against on the loading blocks (12), and loading blocks (12) is arranged on the measured bearing (13); Axial load cylinder (10) and the central lines of testing axle (14), terminal pad (15) and drive shaft system (5), worktable (16) or terminal pad (15) are gone up optional dress environmental simulation test servicing unit.
3, automobile hanging according to claim 2 is with plastic support bearing used dynamic analog test machine, it is characterized in that: its drive unit is by variable-frequency motor (1), reductor (2), multi-connecting-rod mechanism (3), torque sensor (4) and drive shaft system (5) constitute, variable-frequency motor (1) connects with reductor (2) and is fixed on the interior dividing plate of lathe bed (17), be connected with the rotating disk of multi-connecting-rod mechanism (3) on the output shaft of reductor (2), rotating disk connects with long connecting rod, long connecting rod connects with short connecting rod again, short connecting rod is fixed on the lower end of drive shaft system (5), and between drive shaft system (5) lower end and short connecting rod, being provided with torque sensor (4), drive shaft system (5) then is fixed in the worktable (16) on the lathe bed (17).
4, automobile hanging according to claim 2 is with plastic support bearing used dynamic analog test machine, and it is characterized in that: its optional dress environmental simulation test servicing unit is meant muddy water environmental simulation test servicing unit and hot environment simulation test servicing unit.
5, according to claim 2 or 4 described automobile hangings with plastic support bearing used dynamic analog test machine, it is characterized in that: its muddy water environmental simulation test servicing unit is made of muddy water case (18), water out adapter (19), water supply connector (20), muddy water case (18) is fixed on the terminal pad (15) after being enclosed between test axle (14) and the loading blocks (12) by seal, a side is provided with water supply connector (20) in the upper end of muddy water case (18), and lower end one side of muddy water case (18) sets out water swivel (19).
6, according to claim 2 or 4 described automobile hangings with plastic support bearing used dynamic analog test machine, it is characterized in that: its hot environment simulation test servicing unit is made of heating cabinet (21), heating collar (22), heating rod (23), temperature sensor (24), heating cabinet (21) is placed on worktable (16) and goes up and be looped around between loading blocks (12) and the worktable (16), several heating rods (23) are set in heating cabinet (21), heating collar (22) is set on the heating rod (23), on heating cabinet (21) body temperature sensor (24) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102314188A CN101430245B (en) | 2008-12-08 | 2008-12-08 | Dynamic simulation test method and testing machine for plastic support bearing used for suspension |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102314188A CN101430245B (en) | 2008-12-08 | 2008-12-08 | Dynamic simulation test method and testing machine for plastic support bearing used for suspension |
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| Publication Number | Publication Date |
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| CN101430245A true CN101430245A (en) | 2009-05-13 |
| CN101430245B CN101430245B (en) | 2010-09-22 |
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| CN2008102314188A Expired - Fee Related CN101430245B (en) | 2008-12-08 | 2008-12-08 | Dynamic simulation test method and testing machine for plastic support bearing used for suspension |
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| CN102175369A (en) * | 2011-02-24 | 2011-09-07 | 上海大学 | Friction torque testing device for rolling bearing at low temperature |
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| CN102175369A (en) * | 2011-02-24 | 2011-09-07 | 上海大学 | Friction torque testing device for rolling bearing at low temperature |
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| CN102410929B (en) * | 2011-10-28 | 2013-07-31 | 天津大学 | Active-control hydraulic type rub-impact fault detection test apparatus |
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