CN107014615B - A kind of bearing life testing machine - Google Patents
A kind of bearing life testing machine Download PDFInfo
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- CN107014615B CN107014615B CN201710302956.0A CN201710302956A CN107014615B CN 107014615 B CN107014615 B CN 107014615B CN 201710302956 A CN201710302956 A CN 201710302956A CN 107014615 B CN107014615 B CN 107014615B
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- bearing seat
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- bearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to a kind of bearing life testing machines, including rack, main bearing seat, main shaft, tapered shaft, test bearing seat, spindle drive and load loading mechanism, main bearing seat is placed in central rack, main shaft is rotatablely arranged on main bearing seat, main bearing seat is extended at the both ends of main shaft, and the inside of main shaft is axially provided with through-hole；Tapered shaft is plugged in through-hole, and the conical surface of tapered shaft and the horn-like inner wall of through-hole fit, main shaft is internally provided with the pull rod that one end is fixedly connected with tapered shaft, and the other end of pull rod extends through-hole to the direction far from tapered shaft and pulled at the through-hole side outlet by blade；The top of test bearing seat is provided with its internal liquid injection hole of connection, and frame lower is provided with the counter of measurement main axis circle number, and the counter is opposite with blade, is provided with vibrating sensor on test bearing seat.The present invention can detect the working performances such as service life of the bearing under acid or alkaline working environment.
Description
Technical field
The present invention relates to Production of bearing apparatus field, in particular a kind of bearing life testing machine.
Background technique
Through the literature search of existing technologies, Chen Fanghua invention disclosed patent (application number 201210484680.X)
A kind of test device of bearing life is disclosed, the test device of bearing life provided by the invention uses electric tool conduct
The power resources of bearing rotation provide drag loads using brake；Electric tool is bearing while drive shaft forwards dynamic
True working environment is provided, tests bearing in its actual applying working condition.The patent and other existing skills
The service life that art cannot be under acid or alkaline environment bearing is detected.
Summary of the invention
Present invention aims at solving the above problems, provides one kind and detect bearing under acid, alkaline equal solvent environment
The bearing life testing machine in service life, is specifically realized by the following technical scheme:
A kind of bearing life testing machine, including rack, main bearing seat, main shaft, tapered shaft, test bearing seat, main shaft drives
Mechanism and load loading mechanism, the main bearing seat are placed in central rack, and the main shaft is rotatablely arranged at the base bearing
On seat, the main bearing seat is extended at the both ends of main shaft, and the inside of main shaft is axially provided with through-hole；The test bearing seat
It is placed in the side of the through-hole, inner wall of the through-hole close to test bearing seat side is gradually spread to the opening of the side of through-hole in loudspeaker
Shape, a side outer wall of tapered shaft are with the pyramidal of the conical surface, and the other side is cylindric；The tapered shaft is plugged in
In the through-hole, and the horn-like inner wall of the conical surface of tapered shaft and through-hole fits, the main shaft be internally provided with one end with
The pull rod that tapered shaft is fixedly connected, the other end of the pull rod to the direction far from the tapered shaft extend the through-hole and
Through blade drawing at the through-hole side outlet；The circular cylinder shaped portion of tapered shaft is installed on the test bearing via test bearing
In seat, the bottom side of the test bearing seat is connect with the load loading mechanism, to load radial carry on test bearing
Lotus；The top of the test bearing seat is provided with its internal liquid injection hole of connection, is connected with fluid injection cylinder on the liquid injection hole, described
It is marked with test solvent in fluid injection cylinder, the upper end opening of the fluid injection cylinder and is plugged with piston rod, the piston via the opening
The central axial of bar is provided with stomata, and the threaded one end that the piston rod is located at outside fluid injection cylinder is connected with end cover；Piston
Bar be located at the end face in fluid injection cylinder be located at test solvent top and test solvent on floating have an anti-spattering plate；The main shaft drives
Motivation structure is connect with the spindle drive drives main shaft to rotate in main bearing seat；The frame lower is provided with measurement main shaft and turns
The counter of moving-coil number, the counter is opposite with the blade, is provided with vibrating sensor on the test bearing seat.
The bearing life testing machine, further design is, the load loading mechanism includes lever, adjusts
Bar, spring and end cap are articulated with frame lower in the middle part of the lever and are located at below main bearing seat；The one of the lever
Side is provided with adjustment hole, and the adjusting rod vertically passes through the adjustment hole, and lower end is fixedly connected in rack and adjusts
The outer wall of bar is provided with external screw thread, and the spring band is placed on adjusting rod, and the lower end of spring and the upper side of the lever offset,
Tool internal thread connecting hole is provided in the middle part of end cap and via being threadedly connected to the adjusting rod top, the upper end of spring
The bottom surface for contacting at the end cap, the other end of the lever, which upwarps, under the elastic force effect of spring contacts at the test bearing
The bottom of seat.
The bearing life testing machine, further design is that the bottom wall of the test bearing seat is provided with opening
The locating slot of downward cone, the respective end of the lever upwardly extend and are connected with the convex being placed in locating slot
Block；The end face that the bottom surface of the test bearing seat is upwardly extended with the lever offsets.
The bearing life testing machine, further design is that the test bearing seat includes pedestal, first end cover
And second end cover, bearing mounting hole is horizontally arranged in the middle part of the pedestal, and the first end cover, second end cover respectively symmetrically connect
The both ends of the bearing mounting hole are connected to, and are provided with the duct for grafting tapered shaft in the middle part of first end cover.
The bearing life testing machine, further design is that the spindle drive includes motor, transmission belt
And belt wheel, the belt wheel are fixedly connected on the main shaft, the motor is drivingly connected the master via transmission belt and belt wheel
Axis.
The bearing life testing machine, further design is, the test solvent is strong acid solution or highly basic
Solution.
The beneficial effects of the present invention are:
Test bearing is made to be in acid or alkalinity during the test by the way that liquid injection hole is arranged on test bearing seat
Or in the infiltration environment of other solvents, examined so as to working performances such as service life to bearing under corresponding working environment
It surveys；Can to fill always inside test bearing seat by setting fluid injection cylinder has coordinative solvent to ensure that experimental enviroment is stablized, and
And avoiding causes solvent pressure to increase since test bearing and tapered shaft heat up in test so as to cause corresponding sealing
Component is destroyed, test solvent overflows；Test bearing is connected in main shaft by tapered shaft so that test during shaft due to
The torsion that load generates concentrates on tapered shaft the injury of shaft, to can ensure that by the lower tapered shaft of replacement cost
The present invention works normally；Tapered shaft forms biggish stiction under drawing between its conical surface and main shaft inner wall, really with this
It has protected to be not present between tapered shaft and main shaft and relatively rotate；Load loading mechanism uses the structure of lever and spring, so that pressure
Load can be continuously adjusted according to the elasticity modulus of spring, simple and reliable for structure.
Detailed description of the invention
Fig. 1 is the overall structure top view of the embodiment of the present invention.
Fig. 2 is the load loading mechanism structure principle chart of embodiment.
Fig. 3 is the test bearing seat section structure diagram of embodiment.
Fig. 4 is fluid injection barrel structure schematic diagram.
Specific embodiment
Below in conjunction with Figure of description and embodiment, invention is further explained:
As shown, the bearing life testing machine includes rack 1, main bearing seat 2, main shaft 3, tapered shaft 4, test bearing seat
5, spindle drive 6 and load loading mechanism 7, main bearing seat 2 are placed in 1 middle part of rack, and main shaft 3 is rotatablely arranged at main shaft
It holds on seat, main bearing seat 2 is extended at the both ends of main shaft 3, and the inside of main shaft 3 is axially provided with through-hole；Test bearing seating
In the side of through-hole, inner wall of the through-hole close to test bearing seat side is gradually spread to the opening of the side of through-hole in horn-like,
One side outer wall of tapered shaft is with the pyramidal of the conical surface, and the other side is cylindric；Tapered shaft is plugged in through-hole, and
And the conical surface of tapered shaft and the horn-like inner wall of through-hole fit, main shaft is internally provided with one end and is threadably secured with tapered shaft
The pull rod 41 of connection, the other end of pull rod extend through-hole to the direction far from tapered shaft and are pulled by blade 9 in through-hole
At the side outlet；The circular cylinder shaped portion of tapered shaft is installed in test bearing seat via test bearing, the bottom side of test bearing seat
Face is connect with load loading mechanism, to load radial load on test bearing；The top of test bearing seat 5 is provided with connection
Its internal liquid injection hole 51 is connected with fluid injection cylinder 52 on liquid injection hole, test solvent is marked in fluid injection cylinder, test solvent is according to test
It needs can choose for strong acid solution or strong base solution, test solvent enters in test bearing seat via liquid injection hole；Fluid injection cylinder
Upper end opening and be plugged with piston rod 53 via the opening, the central axial of piston rod is provided with stomata 54, piston rod position
Threaded one end outside fluid injection cylinder is connected with end cover 55；Piston rod is located at the end face in fluid injection cylinder and is located at test solvent
Floating has an anti-spattering plate 56 on top and test solvent；Spindle drive is connect with spindle drive drives main shaft in base bearing
Rotation in seat；1 lower part of rack is provided with the counter 8 of measurement main axis circle number, and the counter is opposite with the blade, test
Vibrating sensor 57 is provided on bearing block.
Load loading mechanism 7 includes lever 71, adjusting rod 72, spring 73 and end cap 74, is articulated with machine in the middle part of lever
Frame lower part and be located at main bearing seat below；One side of lever is provided with adjustment hole, and adjusting rod vertically passes through adjustment hole, under
End is fixedly connected in rack and the outer wall of adjusting rod is provided with external screw thread, and spring band is placed on adjusting rod, the lower end of spring
It offsets with the upper side of lever, tool internal thread connecting hole is provided in the middle part of end cap and via being threadedly connected to adjusting rod
The upper end on top, spring contacts at the bottom surface of end cap, and the other end of lever, which upwarps, under the elastic force effect of spring contacts at test
The bottom of bearing block.
The bottom wall of test bearing seat 5 is provided with the locating slot 58 for the cone that Open Side Down, and the respective end of lever is upward
Extend and is connected with the locating convex block 59 being placed in locating slot；The end face phase that the bottom surface of test bearing seat is upwardly extended with lever
It supports.
Test bearing seat 5 includes pedestal 510, first end cover 512 and second end cover 513, is horizontally arranged in the middle part of pedestal
Bearing mounting hole, first end cover, second end cover are respectively symmetrically connected to the both ends of bearing mounting hole, and the middle part of first end cover
It is provided with the duct for grafting tapered shaft.
6 structure of spindle driving machine includes motor 61, transmission belt 62 and belt wheel 63, and belt wheel is fixedly connected on main shaft, motor
Main shaft is drivingly connected via transmission belt and belt wheel.
The embodiment makes test bearing be in acid during the test by the way that liquid injection hole is arranged on test bearing seat
Either in the infiltration environment of alkalinity or other solvents, so as to workabilities such as service life to bearing under corresponding working environment
It can be carried out detection；When test, judge whether the working condition of bearing is abnormal according to the output of vibrating sensor, according to bearing working
The accumulated output signal of abnormal hour counter forms the judgement to bearing life.
Embodiment can to fill always inside test bearing seat by setting fluid injection cylinder has coordinative solvent to ensure to test
Ambient stable, and avoid due to test bearing and tapered shaft heat up in test cause solvent pressure to increase so as to cause
Corresponding seal member is destroyed, test solvent overflows.Actually stomata 54 forms cooling duct, prevents from escaping in steam and lead
Test solvent concentration is caused to change；When dismantling test bearing seat can by with end cover block stomata after pull piston
Bar forms negative pressure in fluid injection cylinder and most of test solvent in test bearing seat is made to enter fluid injection cylinder, reduces operator and connects
Touch the risk of test solvent.
Wherein test bearing is connected in main shaft by tapered shaft, so that the torsion that shaft is generated due to load during test
Power concentrates on tapered shaft the injury of shaft, to can ensure that the normal work of the present invention by the lower tapered shaft of replacement cost
Make；Tapered shaft forms biggish stiction under drawing between its conical surface and main shaft inner wall, with this ensure tapered shaft with
There is no relatively rotate between main shaft；Load loading mechanism use lever and spring structure, allow pressure-loaded according to
The elasticity modulus of spring is continuously adjusted, simple and reliable for structure.
Claims (6)
1. a kind of bearing life testing machine, it is characterised in that including rack, main bearing seat, main shaft, tapered shaft, test bearing seat,
Spindle drive and load loading mechanism, the main bearing seat are placed in central rack, and the main shaft is rotatablely arranged at institute
It states on main bearing seat, the main bearing seat is extended at the both ends of main shaft, and the inside of main shaft is axially provided with through-hole；The examination
Test the side that bearing block is placed in the through-hole, through-hole close to test bearing seat side opening from inner wall to the side of through-hole gradually
It is in horn-like for spreading, and a side outer wall of tapered shaft is with the pyramidal of the conical surface, and the other side is cylindric；The taper
Axis is plugged in the through-hole, and the horn-like inner wall of the conical surface of tapered shaft and through-hole fits, setting inside the main shaft
The pull rod for having one end to be fixedly connected with tapered shaft, the other end of the pull rod extend described to the direction far from the tapered shaft
Through-hole and by blade drawing at the through-hole side outlet；The circular cylinder shaped portion of tapered shaft is installed on described via test bearing
In test bearing seat, the bottom side of the test bearing seat is connect with the load loading mechanism, to add on test bearing
Carry radial load；The top of the test bearing seat is provided with its internal liquid injection hole of connection, is connected with note on the liquid injection hole
Fluid cylinder, is marked with test solvent in the fluid injection cylinder, the upper end opening of the fluid injection cylinder and is plugged with piston rod via the opening,
The central axial of the piston rod is provided with stomata, and the threaded one end that the piston rod is located at outside fluid injection cylinder is connected with sealed end
Lid；Piston rod be located at the end face in fluid injection cylinder be located at test solvent top and test solvent on floating have an anti-spattering plate；Institute
It states spindle drive and is connect with the spindle drive and main shaft is driven to rotate in main bearing seat；The frame lower is provided with survey
The counter of main axis circle number is measured, the counter is opposite with the blade, is provided with vibrating sensing on the test bearing seat
Device.
2. bearing life testing machine according to claim 1, which is characterized in that the load loading mechanism include lever,
Adjusting rod, spring and end cap are articulated with frame lower in the middle part of the lever and are located at below main bearing seat；The lever
A side be provided with adjustment hole, the adjusting rod vertically passes through the adjustment hole, lower end be fixedly connected in rack and
The outer wall of adjusting rod is provided with external screw thread, and the spring band is placed on adjusting rod, the upper side of the lower end of spring and the lever
It offsets, tool internal thread connecting hole is provided in the middle part of end cap and via being threadedly connected to the adjusting rod top, spring
Upper end contact at the bottom surface of the end cap, the other end of the lever, which upwarps, under the elastic force effect of spring contacts at the examination
Test the bottom of bearing block.
3. bearing life testing machine according to claim 2, which is characterized in that the bottom wall of the test bearing seat is provided with
The locating slot for the cone that Open Side Down, the respective end of the lever, which upwardly extends and is connected with to be placed in locating slot, determines
Position convex block；The end face that the bottom surface of the test bearing seat is upwardly extended with the lever offsets.
4. bearing life testing machine according to claim 2, which is characterized in that the test bearing seat includes pedestal,
One end cap and second end cover are horizontally arranged with bearing mounting hole, the first end cover, second end cover difference in the middle part of the pedestal
The both ends of the bearing mounting hole are symmetrically connected to, and are provided with the duct for grafting tapered shaft in the middle part of first end cover.
5. bearing life testing machine according to claim 1, which is characterized in that the spindle drive include motor,
Transmission belt and belt wheel, the belt wheel are fixedly connected on the main shaft, and the motor is drivingly connected via transmission belt and belt wheel
The main shaft.
6. bearing life testing machine according to claim 1, which is characterized in that the test solvent be strong acid solution or
Strong base solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710302956.0A CN107014615B (en) | 2017-05-03 | 2017-05-03 | A kind of bearing life testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710302956.0A CN107014615B (en) | 2017-05-03 | 2017-05-03 | A kind of bearing life testing machine |
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| CN107014615A CN107014615A (en) | 2017-08-04 |
| CN107014615B true CN107014615B (en) | 2019-03-08 |
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| CN201710302956.0A Active CN107014615B (en) | 2017-05-03 | 2017-05-03 | A kind of bearing life testing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110567862A (en) * | 2019-08-16 | 2019-12-13 | 人本集团有限公司 | Test device for detecting corrosion resistance of bearing |
Citations (6)
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|---|---|---|---|---|
| JPH11118655A (en) * | 1997-10-20 | 1999-04-30 | Mitsubishi Heavy Ind Ltd | Tire chucking apparatus for tire uniformity machine |
| JP2010175511A (en) * | 2009-02-02 | 2010-08-12 | Ntn Corp | Inspection method and inspection apparatus |
| CN203719684U (en) * | 2014-03-10 | 2014-07-16 | 海南英利新能源有限公司 | Tapered bearing box detection device |
| WO2014161587A1 (en) * | 2013-04-05 | 2014-10-09 | Aktiebolaget Skf | Method for processing data obtained from a condition monitoring system |
| CN105527096A (en) * | 2016-01-06 | 2016-04-27 | 吉林大学 | Gearbox no-load running-in test bed with self-centering positioning and clamping device |
| CN105910825A (en) * | 2016-06-27 | 2016-08-31 | 浙江天马轴承有限公司 | Simulation tester for biaxial heavy-duty bearing |
-
2017
- 2017-05-03 CN CN201710302956.0A patent/CN107014615B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11118655A (en) * | 1997-10-20 | 1999-04-30 | Mitsubishi Heavy Ind Ltd | Tire chucking apparatus for tire uniformity machine |
| JP2010175511A (en) * | 2009-02-02 | 2010-08-12 | Ntn Corp | Inspection method and inspection apparatus |
| WO2014161587A1 (en) * | 2013-04-05 | 2014-10-09 | Aktiebolaget Skf | Method for processing data obtained from a condition monitoring system |
| CN203719684U (en) * | 2014-03-10 | 2014-07-16 | 海南英利新能源有限公司 | Tapered bearing box detection device |
| CN105527096A (en) * | 2016-01-06 | 2016-04-27 | 吉林大学 | Gearbox no-load running-in test bed with self-centering positioning and clamping device |
| CN105910825A (en) * | 2016-06-27 | 2016-08-31 | 浙江天马轴承有限公司 | Simulation tester for biaxial heavy-duty bearing |
Non-Patent Citations (1)
| Title |
|---|
| 轴承用球三点接触纯滚动接触疲劳寿命试验机;周井玲 等;《轴承》;20061231(第6期);第23-26页 |
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| CN107014615A (en) | 2017-08-04 |
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Effective date of registration: 20230829 Address after: 226000 No. 9 Siyuan Road, Chongchuan District, Nantong City, Jiangsu Province Patentee after: Nantong University Technology Transfer Center Co.,Ltd. Address before: School of mechanical engineering, Nantong University, No.9 Xiyuan Road, Nantong City, Jiangsu Province, 226019 Patentee before: NANTONG University |