CN100350233C - Simulation test loading device for automobile wheel hub bearing unit - Google Patents
Simulation test loading device for automobile wheel hub bearing unit Download PDFInfo
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- CN100350233C CN100350233C CNB2004100603166A CN200410060316A CN100350233C CN 100350233 C CN100350233 C CN 100350233C CN B2004100603166 A CNB2004100603166 A CN B2004100603166A CN 200410060316 A CN200410060316 A CN 200410060316A CN 100350233 C CN100350233 C CN 100350233C
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
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- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
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Abstract
The present invention relates to a loading device of a simulation test of a bearing unit of an automobile wheel hub, which is provided with a transmission main shaft (1), a mechanism with a testing main shaft (2), a supporting body mechanism for testing a bearing (12), a radial oil cylinder loading mechanism and an axial oil cylinder loading mechanism, wherein one end of a radial loading oil cylinder (4), which is connected with a machine frame, is provided with a ball-pivot joint bearing (5). One end of an axial loading oil cylinder (10), which is connected with the machine frame, is provided with a ball-pivot joint bearing (11). A proportional pressure-reducing valve (21) and an electromagnetic directional valve (20) are directly arranged below the radial loading oil cylinder (4). A proportional pressure-reducing valve (15) and an electromagnetic directional valve (14) are directly arranged below the axial loading oil cylinder (10). An ancillary shoring (28) is arranged below an axial loading arm (6). A one-way valve (17) and an accumulator (18) are respectively arranged in a hydraulic circuit of the axial loading oil cylinder. The accuracy of test load is enhanced, and the reliability of test results is enhanced.
Description
Technical field
The present invention relates to automobile hub bearing experimental technique field, a kind of simulation test charger of automobile hub bearing.
Background technology
The simulation test machine of known automobile hub bearing, be to rotate by the variable-frequency motor drive shaft, loading is provided by radial loaded oil cylinder and axial load cylinder, the front end of these two oil cylinders is connected with the test body with spherical plain bearing rod end by pull pressure sensor, and the rear end of oil cylinder is to be fixed on the frame, or swing-type cylinder is connected with frame in the middle of adopting; Adjust hydraulic coupling with proportional pressure-reducing valve, the radial loaded oil cylinder applies radial pull to hub bearing, and axially load cylinder applies a kind of axial pulling force or pressure with the direction vertical with the radial loaded oil cylinder to hub bearing by radius of wheel length.And oil cylinder is continuous conversion pulling force or pressure when loading, and alternating action reaches simulated automotive in this way under unloaded or heavily loaded condition, when straight-line travelling or left and right side turning driving state, and the stress of hub bearing.Because the degree of freedom to these two oil cylinders has irrational restriction, when causing the radial pull size variation, can directly have influence on the size of the axial force of having set; And axial force size, direction directly have influence on the size of the radial pull of having set when changing.And the size of this influence value, direction also change at any time, and be uncertain, thereby caused the mutual interference of loading force, caused the serious distortion of test load value, influenced test findings.
Summary of the invention
For overcoming the defective that prior art exists, the simulation test charger that the purpose of this invention is to provide a kind of automobile hub bearing, it can not only overcome when test radially, the axially mutual interference of loading force, and can improve the loading commutating frequency of axial force, can realize the inner ring rotation or the outer ring rotation of test bearing respectively, improve the accuracy of test load, improve the reliability of test findings.
For achieving the above object, the present invention adopts following technical scheme:
The simulation test charger of described automobile hub bearing, it has transmission main shaft and test mainshaft mechanism; The supporting body mechanism of test bearing; Radial and axial load cylinder mechanism; The front end of transmission main shaft connects the test main shaft; Installation test bearing on the test main shaft, test bearing and supporting body are fixed together, respectively passing through radially in two sides of supporting body, pull pressure sensor links to each other with axial loading arm with the radial loaded oil cylinder, axially loading arm is connected with the hydraulic system of load cylinder by the axial push-pull force transducer, and is installed on the base; At the end that its radial loaded oil cylinder is connected with frame one oscillating bearing B is installed; An end that is connected with frame at its axial load cylinder is equipped with oscillating bearing D.
The transmission main shaft of the simulation test charger of described automobile hub bearing and test mainshaft mechanism, at the fixedly connected test main shaft of the front end of transmission main shaft, installation test bearing on the test main shaft, each fixedlys connected two sides of test bearing with the supporting body of two sides.
The radial loaded oil cylinder mechanism of the simulation test charger of described automobile hub bearing, it is connected with pull pressure sensor radially by oscillating bearing A at end of supporting body; Radially an end of pull pressure sensor and radial loaded oil cylinder is connected, and the other end of radial loaded oil cylinder is connected on the frame by oscillating bearing A.
The radial loaded oil cylinder mechanism of the simulation test charger of described automobile hub bearing, it directly is equipped with radially with proportional pressure-reducing valve below the radial loaded oil cylinder and radially uses solenoid directional control valve.
The axial load cylinder mechanism of the simulation test charger of described automobile hub bearing, its at the opposing party's coupling shaft of axial carrying body to loading arm, axially loading arm is connected with the axial push-pull force transducer by oscillating bearing C, the other end of axial push-pull force transducer is connected with axial load cylinder, and axially the other end of load cylinder is connected with frame by oscillating bearing D.
The axial load cylinder mechanism of the simulation test charger of described automobile hub bearing below its axial loading arm, is equipped with supplemental support; In the hydraulic circuit of axial load cylinder, be separately installed with retaining valve and accumulator.
The axial load cylinder mechanism of the simulation test charger of described automobile hub bearing, it directly is equipped with axial with proportional pressure-reducing valve with axially use solenoid directional control valve below axial load cylinder.
In the radial and axial loading hydraulic system of the simulation test charger of described automobile hub bearing, import and exit at vane pump are separately installed with oil filter and fine filter, in system's main pipe rail pressure meter switch are installed, tensimeter, surplus valve, one-way throttle valve and refrigeratory.
In the radial and axial loading hydraulic system of the simulation test charger of described automobile hub bearing, axially load cylinder and radial loaded oil cylinder all adopt the through-rod piston oil cylinder.
The present invention is owing to adopted technical scheme as mentioned above, and it has following good effect:
The simulation test charger of this automobile hub bearing, its axial load cylinder can be adjusted with respect to the position of frame, radius of wheel with the simulation different model, axially the front end of load cylinder passes through pull pressure sensor, oscillating bearing links to each other with axial loading arm, (this loading arm just is equivalent to radius of wheel, its radius difference of different wheels, and then the length of loading arm is also different.) its tie point just is equivalent to the touchdown point of wheel, this axial loading arm and supporting body are fixed as one, piston rod in the oil cylinder just can be realized freely leading, for loading cylinder, two sphere oscillating bearings at its two ends, each has limited X|Y, the one-movement-freedom-degree of three directions of Z, but do not limit the rotational freedom of these three directions, oil cylinder can freely swing within the specific limits around the oscillating bearing that is fixed on the frame, and moving along the oil cylinder axis direction, be to realize by the stretching motion of piston rod itself, load cylinder only affords pulling force or pressure like this, its equal and opposite in direction, direction is opposite, and all be positioned on the same axis, the pulling force of oil cylinder or the size of pressure are set up by proportional pressure-reducing valve, like this when equilibrium state, the pressure that proportional pressure-reducing valve is set up remains unchanged, two separate component of axial load and radial load are independent of each other, in addition, because load cylinder and axial loading arm all are arranged horizontally, in order to overcome the downward power that two load cylinders and axial loading arm comprehensively cause, specially a supplemental support has been installed at the touchdown point place of face wheel under axial loading arm, makes two oil cylinders be in horizontality.
In addition, the present invention becomes one load cylinder and reversal valve and proportional pressure-reducing valve, makes the path between proportional pressure-reducing valve and oil cylinder the shortest, and has avoided the flexible pipe connection, makes the controlled pressure of proportional pressure-reducing valve more stable like this.
In addition, in hydraulic loading system, because the area of oil cylinder two-piston equates, the meta function of reversal valve has guaranteed that there is pressure oil load cylinder two oil pocket inside when free state, the position of regulating piston bar so easily, be convenient to install and adjust, and be easy to realize the adjustment control of zero load and positive and negative absolute value equal force.
In addition, because axially load cylinder needs frequent commutation (being the direction frequent variations of axial load power), the pressure oil that needs more flow, this novel having taked: axially adding accumulator and retaining valve in the oil cylinder oil-feed oil circuit as following measure, in order to steady pressure, the supplementary pressure oil capacity.
The mutual interference of radial and axial load when the present invention can effectively eliminate test, make the adjustment safe ready, the test load value accurately and reliably, real simulated automobile hub bearing in the stress in when work, also can improve the loading commutating frequency of axial force simultaneously, improve the reliability of test findings.
Description of drawings
Fig. 1 is the physical construction synoptic diagram of the simulation test charger of automobile hub bearing:
Fig. 2 be the M of experiment loading unit to view:
Fig. 3 be the A-A of experiment loading unit to view:
Fig. 4 be the B-B of experiment loading unit to view:
Fig. 5 be K1, K2, the K3 of experiment loading unit to view:
Fig. 6 be the K4 of experiment loading unit to view:
Fig. 7 is the loading hydraulic system principle figure of experiment loading unit:
As shown in Fig. 1-7: the 1-transmission main shaft, 2-tests main shaft, 3-oscillating bearing A, 4-radial loaded oil cylinder, 5-oscillating bearing B, the axial loading arm of 6-, 7-is pull pressure sensor radially, 8-oscillating bearing C, 9-axial push-pull force transducer, the axial load cylinder of 10-, 11-oscillating bearing D, the 12-test bearing, the 13-supporting body; 14-axially uses solenoid directional control valve; 15-axially uses proportional pressure-reducing valve; The 16-tensimeter; The 17-retaining valve; The 18-accumulator; The 19-one-way throttle valve; 20-radially uses solenoid directional control valve; 21-radially uses proportional pressure-reducing valve; The 22-surplus valve; The 23-pressure meter switch; The 24-fine filter; The 25-vane pump; The 26-oil filter; The 27-refrigeratory; The 28-supplemental support; 29-mechanism frame.
Embodiment
At the fixedly connected test main shaft of the front end of transmission main shaft (1) (2), test main shaft (2) is gone up installation test bearing (12), test bearing (12) and supporting body (13) are fixed together, side at supporting body (13), be connected with pull pressure sensor (7) radially by oscillating bearing A (3), radially pull pressure sensor (7) is connected with radial loaded oil cylinder (4) one ends, the other end of radial loaded oil cylinder (4) is connected with mechanism's frame (29) by oscillating bearing B (5), below in radial loaded oil cylinder (4), directly be equipped with and be connected to each other radially using proportional pressure-reducing valve (21) and radially using solenoid directional control valve (20) of being integral, opposite side in supporting body (13), coupling shaft is to loading arm (6), axially loading arm (6) is connected with axial push-pull force transducer (9) by oscillating bearing C (8), the other end of axial push-pull force transducer (9) is connected with axial load cylinder (10), the other end of axial load cylinder (10), be connected with mechanism's frame (29) by oscillating bearing D (11), below at axial load cylinder (10), directly be equipped with and be connected to each other be integral axial with proportional pressure-reducing valve (15) with axially with solenoid directional control valve (14), below at axial loading arm (6), supplemental support (28) is installed, in the hydraulic circuit of axial load cylinder, be separately installed with retaining valve (17) and accumulator (18), in the hydraulic system of entire mechanism, import and outlet at vane pump (25), be separately installed with oil filter (26) and fine filter (24), pressure meter switch (23) and tensimeter (16) are installed in the house steward of system, surplus valve (22), one-way throttle valve (19) and refrigeratory (27).
Work as on-test, vane pump (25) work, each oil circuit is started working by the test routine requirement in the hydraulic system, radial loaded oil cylinder (4) applies radial pull by pull pressure sensor (7) radially to test main shaft (2), and axially load cylinder (10) applies axial tension or pressure by axial push-pull force transducer (9) and axial loading arm (6) to test bearing (12).
When manually test is adjusted, the force value of proportional pressure-reducing valve is set up by test parameters, when axial push-pull power and zero load state transformation, axially load cylinder (10) is along with test bearing (12), supporting body (13) and axial loading arm (6), oscillating bearing C (8) is around the swing of oscillating bearing D (11) trace, the axial corresponding telescopic variation of load cylinder piston rod, (axially the piston rod of load cylinder (10) is only done rectilinear motion with respect to oil cylinder), and radial loaded oil cylinder (4) is when the radial loaded state transformation, along with test bearing (12), supporting body (13), oscillating bearing A (3) is around the swing of oscillating bearing B (5) trace, the corresponding telescopic variation of radial loaded oil cylinder piston bar, (piston rod of radial loaded oil cylinder is only done rectilinear motion with respect to oil cylinder), axially load put in place or zero-bit stable after, radially use proportional pressure-reducing valve (21) to guarantee that set pressure is constant in the oil cylinder, radially the size variation of the power of pull pressure sensor (7) can be in positive and negative 3% scope, correspondingly, when radial pull changed, the size of the power of axial push-pull force transducer (9) was constant substantially.
In control is tested automatically, can be according to the test routine requirement, afterburning state is divided into the circulation of several steps to carry out, computing machine is monitored the pressure value of pull pressure sensor, compare with required value, the Comparative Examples reduction valve constantly sends the adjustment signal, guarantees that actual pressure value is in positive and negative 2% scope of set-point.
Claims (6)
1, a kind of simulation test charger of automobile hub bearing, it has transmission main shaft (1) and test main shaft (2) mechanism, the supporting body mechanism of test bearing (12), radial and axial load cylinder mechanism; The front end of transmission main shaft connects test main shaft (2), test main shaft (2) is gone up installation test bearing (12), test bearing and supporting body are fixed together, link to each other with radial loaded oil cylinder (4) with pull pressure sensor (7) radially by oscillating bearing A (3) in supporting body (13) one sides, the opposite side coupling shaft is to loading arm (6), oscillating bearing C (8) links to each other with axial load cylinder (10) with axial push-pull force transducer (9), it is characterized in that: described experiment loading unit, at the end that its radial loaded oil cylinder (4) is connected with frame one oscillating bearing B (5) is installed; An end that is connected with frame at its axial load cylinder (10) is equipped with oscillating bearing D (11).
2, the simulation test charger of automobile hub bearing as claimed in claim 1, it is characterized in that: described experiment loading unit, its below at radial loaded oil cylinder (4) directly are equipped with radially to be used proportional pressure-reducing valve (21) and radially uses solenoid directional control valve (20).
3, the simulation test charger of automobile hub bearing as claimed in claim 1, it is characterized in that: described experiment loading unit, its below at axial load cylinder (10) directly are equipped with axial with proportional pressure-reducing valve (15) with axially with solenoid directional control valve (14).
4, the simulation test charger of automobile hub bearing as claimed in claim 1 is characterized in that: the load cylinder mechanism of described experiment loading unit in the below of its axial loading arm (6), is equipped with supplemental support (28); In the hydraulic circuit of axial load cylinder, be separately installed with retaining valve (17) and accumulator (18).
5, the simulation test charger of automobile hub bearing as claimed in claim 1, it is characterized in that: described experiment loading unit, it loads in the hydraulic system, import and exit at vane pump (25) are separately installed with oil filter (26) and fine filter (24), pressure meter switch (23) is installed in system's main pipe rail, tensimeter (16), surplus valve (22), one-way throttle valve (19) and refrigeratory (27).
6, as the simulation test charger of claim 1 or 5 described automobile hub bearings, it is characterized in that: described experiment loading unit, it loads in the hydraulic system, and axially load cylinder (10) and radial loaded oil cylinder (4) all adopt the through-rod piston oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100603166A CN100350233C (en) | 2004-12-09 | 2004-12-09 | Simulation test loading device for automobile wheel hub bearing unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100603166A CN100350233C (en) | 2004-12-09 | 2004-12-09 | Simulation test loading device for automobile wheel hub bearing unit |
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| CN1632503A CN1632503A (en) | 2005-06-29 |
| CN100350233C true CN100350233C (en) | 2007-11-21 |
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| CNB2004100603166A Expired - Fee Related CN100350233C (en) | 2004-12-09 | 2004-12-09 | Simulation test loading device for automobile wheel hub bearing unit |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2105685U (en) * | 1990-10-15 | 1992-05-27 | 航空航天工业部第六○八研究所 | Tester of rolling bearing of carriage wheel |
| DE4410639A1 (en) * | 1994-03-26 | 1995-09-28 | Renk Ag | Bearing test bed, esp. for testing rail vehicle wheel bearing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715610A (en) * | 2016-03-23 | 2016-06-29 | 浙江工业大学 | Pulling-pressing integrated machine dedicated cylinder and method for detecting by utilizing cylinder |
| CN105715610B (en) * | 2016-03-23 | 2017-12-19 | 浙江工业大学 | A kind of method detected using pulling and pressing integrated machine Special cylinder |
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| Publication number | Publication date |
|---|---|
| CN1632503A (en) | 2005-06-29 |
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| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu CCVI Bearing Co., Ltd. Assignor: Zhouyan Science and Technology Co., Ltd., Luoyang Contract fulfillment period: 2007.12.1 to 2014.12.31 Contract record no.: 2008320000126 Denomination of invention: Simulation test loading device for automobile wheel hub bearing unit Granted publication date: 20071121 License type: Exclusive license Record date: 20080919 |
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Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.12.1 TO 2014.12.31 Name of requester: JIANGSU XIXIWEI BEARING CO., LTD. Effective date: 20080919 |
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Effective date of registration: 20170427 Address after: Thirty Xin'an Avenue, 237161 Hanzhoung Road, Anhui Town, Lu'an City Jin'an District No. 3 Patentee after: Anhui Hui Man Power Machinery Manufacturing Co. Ltd. Address before: 471039 Middle Road, Henan, Jilin, No. 1, No. Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang |
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