CN107014615A - A kind of bearing life testing machine - Google Patents
A kind of bearing life testing machine Download PDFInfo
- Publication number
- CN107014615A CN107014615A CN201710302956.0A CN201710302956A CN107014615A CN 107014615 A CN107014615 A CN 107014615A CN 201710302956 A CN201710302956 A CN 201710302956A CN 107014615 A CN107014615 A CN 107014615A
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- CN
- China
- Prior art keywords
- bearing seat
- hole
- test
- main
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
Abstract
The present invention relates to a kind of bearing life testing machine, including frame, main bearing seat, main shaft, tapered shaft, test bearing seat, spindle drive and load load maintainer, main bearing seat is placed in central rack, main shaft is rotatablely arranged on main bearing seat, main bearing seat is extended at the two 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 inwall of through hole fit, main shaft is internally provided with the pull bar that one end is fixedly connected with tapered shaft, and the other end of pull bar extends through hole to the direction away from tapered shaft and pulled by blade at the through hole side outlet；The top of test bearing seat is provided with liquid injection hole of its inside of connection, and frame lower is provided with the counter of the measurement main axis number of turns, and the counter is relative with blade, and vibrating sensor is provided with test bearing seat.The present invention can be to bearing under acid or alkaline working environment the service behaviour such as life-span detect.
Description
Technical field
The present invention relates to Production of bearing apparatus field, in particular a kind of bearing life testing machine.
Background technology
Through the literature search discovery to prior art, Chen Fang China's invention disclosed patents (application number 201210484680.X)
A kind of test device of bearing life is disclosed, the test device for the bearing life that the invention is provided uses electric tool conduct
The power resources that bearing is rotated, drag loads are provided using brake；Electric tool is bearing while driving bearing is rotated
There is provided real working environment, bearing is set to be tested in its actual applying working condition.The patent and other existing skills
Art can not be detected to the life-span that bearing is under acid or alkaline environment.
The content of the invention
Present invention aims at solve the above problems there is provided one kind to detect bearing under acid, alkaline equal solvent environment
The bearing life testing machine in life-span, is specifically realized by following technical scheme：
A kind of bearing life testing machine, including frame, main bearing seat, main shaft, tapered shaft, test bearing seat, spindle drive
With load load maintainer, the main bearing seat is placed in central rack, and the main shaft is rotatablely arranged on the main bearing seat,
The main bearing seat is extended at the two ends of main shaft, and the inside of main shaft is axially provided with through hole；The test bearing seating in
The side of the through hole, inwall of the through hole close to test bearing seat side is gradually spread in loudspeaker to the opening of the side of through hole
Shape, a sidepiece outer wall of tapered shaft is the frustum with the conical surface, and its other side is cylindric；The tapered shaft is plugged in institute
State in through hole, and the conical surface of tapered shaft and the horn-like inwall of through hole fit, and the main shaft is internally provided with one end and cone
The pull bar that shape axle is fixedly connected, the other end of the pull bar extends the through hole to the direction away from the tapered shaft and led to
Blade is crossed to pull at the through hole side outlet；The circular cylinder shaped portion of tapered shaft is installed on the test bearing seat via test bearing
Interior, the bottom side of the test bearing seat is connected with the load load maintainer, so as to load radial load on test bearing；
The top of the test bearing seat is provided with liquid injection hole of its inside of connection, the liquid injection hole and is connected with fluid injection cylinder, the note
It is marked with test solvent in fluid cylinder, the upper end open of the fluid injection cylinder and is plugged with piston rod, the piston rod via the opening
It is central axial be provided with stomata, the threaded one end that the piston rod is located at outside fluid injection cylinder is connected with end cover；Piston rod
End face in fluid injection cylinder, which is located at floating in the top of test solvent and test solvent, an anti-spattering plate；The main shaft drives
Mechanism is connected with the spindle drive drives main shaft to be rotated in main bearing seat；The frame lower is provided with measurement main axis
The counter of the number of turns, the counter is relative with the blade, and vibrating sensor is provided with the test bearing seat.
Described bearing life testing machine, it, which is further designed, is, the load load maintainer includes lever, regulation
Frame lower is articulated with the middle part of bar, spring and end cap, the lever and below main bearing seat；The one of the lever
Sidepiece is provided with adjustment hole, and the adjusting rod vertically passes through the adjustment hole, and its lower end is fixedly connected in frame and adjusted
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,
The female connecting hole of tool is provided with the middle part of end cap and via being threadedly connected to the adjusting rod top, the upper end of spring
The bottom surface of the end cap is contacted at, the other end of the lever, which is upwarped, under the elastic force effect of spring contacts at the test bearing
The bottom of seat.
Described bearing life testing machine, it, which is further designed, is, the bottom wall of the test bearing seat is provided with opening
Downward conical locating slot, the respective end of the lever upwardly extends and is 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.
Described bearing life testing machine, it, which is further designed, is, the test bearing seat includes pedestal, the first end cap
With the second end cap, bearing mounting hole is horizontally arranged with the middle part of the pedestal, first end cap, the second end cap respectively symmetrically connect
It is connected to the duct being provided with the middle part of the two ends of the bearing mounting hole, and the first end cap for grafting tapered shaft.
Described bearing life testing machine, it, which is further designed, is, the spindle drive includes motor, transmission belt
And belt wheel, the belt wheel is fixedly connected on the main shaft, and the motor is via main described in transmission belt and belt wheel drive connection
Axle.
Described bearing life testing machine, it, which is further designed, is, the test solvent is strong acid solution or highly basic
Solution.
The beneficial effects of the present invention are：
By set on test bearing seat liquid injection hole cause test bearing in process of the test in acid or alkalescence or
In the infiltration environment of other solvents, detected so as to service behaviours such as the life-spans to bearing under correspondence working environment；
By setting fluid injection cylinder to there is coordinative solvent to ensure that experimental enviroment is stable so that test bearing seat inside is filled all the time, and keep away
Exempt to cause solvent pressure rise to cause corresponding seal member because test bearing and tapered shaft heat up in test
Destroyed, test solvent overflows；Test bearing is connected in main shaft by tapered shaft so that rotating shaft is due to load in process of the test
The injury of the torsion countershaft of generation is concentrated on tapered shaft, so as to be that can ensure that this hair by the relatively low tapered shaft of replacement cost
Bright normal work；Tapered shaft forms larger stiction under drawing between its conical surface and main shaft inwall, ensure that with this
It is not present and relatively rotates between tapered shaft and main shaft；Load load maintainer uses the structure of lever and spring so that pressure-loaded
It can be continuously adjusted according to the modulus of elasticity of spring, it is simple and reliable for structure.
Brief description of the drawings
Fig. 1 is the overall structure top view of the embodiment of the present invention.
Fig. 2 is the load load maintainer structure principle chart of embodiment.
Fig. 3 is the test bearing seat section structure schematic diagram of embodiment.
Fig. 4 is fluid injection barrel structure schematic diagram.
Embodiment
The present invention is further described below in conjunction with Figure of description and embodiment：
As illustrated, the bearing life testing machine includes frame 1, main bearing seat 2, main shaft 3, tapered shaft 4, test bearing seat 5, master
Axle drive mechanism 6 and load load maintainer 7, main bearing seat 3 are placed in the middle part of frame 1, and main shaft 3 is rotatablely arranged at main bearing seat
On, main bearing seat 2 is extended at the two ends of main shaft 3, and the inside of main shaft 3 is axially provided with through hole；Test bearing seating is in logical
The side in hole, inwall of the through hole close to test bearing seat side is gradually spread in horn-like, taper to the opening of the side of through hole
One sidepiece outer wall of axle is the frustum with the conical surface, and its other side is cylindric；Tapered shaft is plugged in through hole, and is bored
The conical surface of shape axle and the horn-like inwall of through hole are fitted, and main shaft, which is internally provided with one end and is threadably secured with tapered shaft, to be connected
Pull bar 41, the other end of pull bar extends through hole to the direction away from tapered shaft and pulled by blade 9 in the through hole side
Exit；The circular cylinder shaped portion of tapered shaft via test bearing be installed on test bearing seat in, test bearing seat bottom side with
Load load maintainer is connected, so as to load radial load on test bearing；The top of test bearing seat 5, which is provided with, to be connected in it
It is connected with the liquid injection hole 51 in portion, liquid injection hole in fluid injection cylinder 52, fluid injection cylinder and is marked with test solvent, test solvent is according to experiment needs
It can select as strong acid solution or strong base solution, test solvent enters in test bearing seat via liquid injection hole；Fluid injection cylinder it is upper
End opening and it is plugged with piston rod 53 via the opening, the central axial of piston rod is provided with stomata 54, and piston rod is located at note
Threaded one end outside fluid cylinder is connected with end cover 55；The end face that piston rod is located in fluid injection cylinder is located at the top of test solvent
And floating has an anti-spattering plate 56 in test solvent；Spindle drive is connected with spindle drive drives main shaft in main bearing seat
Rotate；The bottom of frame 1 is provided with the counter 8 of the measurement main axis number of turns, and the counter is relative with the blade, test bearing
Vibrating sensor 57 is provided with seat.
Load load maintainer 7 includes being articulated with machine in the middle part of lever 71, adjusting rod 72, spring 73 and end cap 74, lever
Frame bottom and below the main bearing seat；One sidepiece of lever is provided with adjustment hole, and adjusting rod vertically passes through adjustment hole, under it
End is fixedly connected in frame 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
Offseted with the upper side of lever, the female connecting hole of tool is provided with the middle part of end cap and via being threadedly connected to adjusting rod
Top, the upper end of spring contacts at the bottom surface of end cap, and the other end of lever, which is upwarped, under the elastic force effect of spring contacts at experiment
The bottom of bearing block.
The bottom wall of test bearing seat 5 is provided with the conical locating slot 58 that Open Side Down, and the respective end of lever is upward
Extend and be 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
Support.
Test bearing seat 5 includes being horizontally arranged with the middle part of pedestal 510, the first end cap 512 and the second end cap 513, pedestal
Bearing mounting hole, the first end cap, the second end cap are respectively symmetrically connected to the two ends of bearing mounting hole, and the middle part of the first end cap
It is provided with the duct for grafting tapered shaft.
The structure of spindle driving machine 6 includes motor 61, transmission belt 62 and belt wheel 63, and belt wheel is fixedly connected on main shaft, motor
Via transmission belt and belt wheel drive connection main shaft.
The embodiment on test bearing seat by setting liquid injection hole to cause test bearing in process of the test in acidity
Or in the infiltration environment of alkalescence or other solvents, so as to workabilities such as the life-spans to bearing under correspondence working environment
It can be detected；During experiment, 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 is by setting fluid injection cylinder can be so that internal fill all the time of test bearing seat has coordinative solvent to ensure experiment
Ambient stable, and avoid causes solvent pressure rise to cause because test bearing and tapered shaft heat up in test
Corresponding seal member is destroyed, test solvent overflows.Actually stomata 54 forms cooling duct, prevents from leading in steam effusion
Test solvent concentration is caused to change；Pull piston after stomata can be blocked by using end cover when dismantling test bearing seat
Bar forms negative pressure in fluid injection cylinder and causes most of test solvent in test bearing seat to enter fluid injection cylinder, and reduction operating personnel connect
Touch the risk of test solvent.
Wherein test bearing is connected in main shaft by tapered shaft so that the torsion that rotating shaft is produced due to load in process of the test
The injury of power countershaft is concentrated on tapered shaft, so as to be that can ensure that normal work of the invention by the relatively low tapered shaft of replacement cost
Make；Tapered shaft forms larger stiction under drawing between its conical surface and main shaft inwall, with this ensure that tapered shaft with
It is not present and relatively rotates between main shaft；Load load maintainer uses the structure of lever and spring so that pressure-loaded can basis
The modulus of elasticity 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 frame, main bearing seat, main shaft, tapered shaft, test bearing seat,
Spindle drive and load load maintainer, the main bearing seat are placed in central rack, and the main shaft is rotatablely arranged at institute
State on main bearing seat, the main bearing seat is extended at the two 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 inwall to the side of through hole gradually
Diffusion is in horn-like, and a sidepiece outer wall of tapered shaft is the frustum with the conical surface, and its other side is cylindric；The taper
Axle is plugged in the through hole, and the conical surface of tapered shaft and the horn-like inwall of through hole fit, and is set inside the main shaft
There is the pull bar that one end is fixedly connected with tapered shaft, the other end of the pull bar extends described to the direction away from the tapered shaft
Through hole and pulled by blade 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 connected with the load load maintainer, so as to add on test bearing
Carry radial load；The top of the test bearing seat is provided with liquid injection hole of its inside of connection, the liquid injection hole and is connected with note
It is marked with test solvent in fluid cylinder, fluid injection cylinder, the upper end open of the fluid injection tin 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；The end face that piston rod is located in fluid injection cylinder, which is located at floating in the top of test solvent and test solvent, an anti-spattering plate；Institute
State spindle drive and be connected with the spindle drive and drive main shaft to be rotated in main bearing seat；The frame lower is provided with survey
The counter of the main axis number of turns is measured, the counter is relative with the blade, vibrating sensing is provided with the test bearing seat
Device.
2. bearing life testing machine according to claim 1, it is characterised in that the load load maintainer include lever,
Frame lower is articulated with the middle part of adjusting rod, spring and end cap, the lever and below main bearing seat；The lever
A sidepiece be provided with adjustment hole, the adjusting rod vertically passes through the adjustment hole, its lower end be fixedly connected in frame and
The outer wall of adjusting rod is provided with external screw thread, and the spring band is placed on adjusting rod, the lower end of spring and the upper side of the lever
Offset, the female connecting hole of tool is provided with 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 is upwarped, 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, it is characterised in that the bottom wall of the test bearing seat is provided with
The conical locating slot that Open Side Down, the respective end of the lever, which is upwardly extended and is connected with, is placed in determining in locating slot
Position projection；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, it is characterised in that the test bearing seat includes pedestal, the
Bearing mounting hole, first end cap, the second end cap difference are horizontally arranged with the middle part of one end cap and the second end cap, the pedestal
Symmetrically it is connected to the duct being provided with the middle part of the two ends of the bearing mounting hole, and the first end cap for grafting tapered shaft.
5. bearing life testing machine according to claim 1, it is characterised 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 via transmission belt and belt wheel drive connection
The main shaft.
6. bearing life testing machine according to claim 1, it is characterised 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107014615A true CN107014615A (en) | 2017-08-04 |
| CN107014615B CN107014615B (en) | 2019-03-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710302956.0A Active CN107014615B (en) | 2017-05-03 | 2017-05-03 | A kind of bearing life testing machine |
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| Country | Link |
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| CN (1) | CN107014615B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|
| 周井玲 等: "轴承用球三点接触纯滚动接触疲劳寿命试验机", 《轴承》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567862A (en) * | 2019-08-16 | 2019-12-13 | 人本集团有限公司 | Test device for detecting corrosion resistance of bearing |
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| Publication number | Publication date |
|---|---|
| CN107014615B (en) | 2019-03-08 |
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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 |