CN108225771A - A kind of roller bearing vibration measurement device - Google Patents
A kind of roller bearing vibration measurement device Download PDFInfo
- Publication number
- CN108225771A CN108225771A CN201711429256.4A CN201711429256A CN108225771A CN 108225771 A CN108225771 A CN 108225771A CN 201711429256 A CN201711429256 A CN 201711429256A CN 108225771 A CN108225771 A CN 108225771A
- Authority
- CN
- China
- Prior art keywords
- mandrel
- contact point
- bearing
- radial loaded
- measurement device
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- G01M13/045—Acoustic or vibration analysis
Abstract
The invention discloses a kind of roller bearing vibration measurement devices, mandrel, sensor and radial loaded mechanism including being used to install measured bearing, the sensor is located at the top of mandrel, and the gauge head of sensor is in contact with the outer surface of cupular part of measured bearing in mandrel, contact point C is formed, the radial loaded mechanism is separately positioned on the first radial loaded component and the second radial loaded component below mandrel including two groups.A kind of roller bearing vibration measurement device of the present invention, it is rational in infrastructure so that the load used in measurement is identical with the load that actual use middle (center) bearing is born, and reduces measurement error, bearing be ensure that during use of installing, vibration, noise can reach the requirement of client.
Description
【Technical field】
The present invention relates to the technical field of bearing, more particularly to a kind of roller bearing vibration measurement device.
【Background technology】
Self-aligning thrust roller bearing can bear each heavy load of axis and suitable for quite high rotating speed.Due to raceway relative to
Bearing axis is inclined, makes bearing that can also bear radial load, but radial load is necessarily less than the 55% of axial load.It pushes away
Power self-aligning roller bearing system divergence type bearing, roller are spherical, and seat ring raceway is spherical, have aligning performance.Because of its load
Position and bearing axis form certain angle, therefore the class bearing can bear axial-radial load simultaneously, and can be extremely heavy
Load occasion uses, and the rotating speed of permission is also higher, and oil lubrication is generally used during use.Under general use occasion, allow maximum
Inclination angle is 2 degree.In the aligning advantage for playing self-aligning thrust roller bearing, it is necessary to assure the gap of surrounding structure and bearing.Mainly
Applied to hydroelectric generator, vertical type motor, propeller for watercraft axis, tower crane, extruder etc..
At present, roller bearing vibration measurements are qualified, but during use of installing, vibration, noise but not necessarily can
Reach the requirement of client.Through analysis shows, at present, measure roller bearing vibration when, bearing inner race be mounted on mandrel
On, with central axis, inner ring is subject to certain axial pretightening load, and outer ring applies corresponding radial load, radial load direction
Vertically downward.But in real work, the radial load that bearing outer ring is born is straight up.Therefore used in measuring
Load and the load born of actual use middle (center) bearing simultaneously differ.Furtheing investigate can find, current roller bearing measurement side
For method there is no influence of the dead weight of Bearing inner roller to bear vibration is considered, this will necessarily generate certain measurement error.
For this reason, it is necessary to propose a kind of roller bearing vibration measurement device.
【Invention content】
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, a kind of roller bearing vibration measurement device is provided,
It aims to solve the problem that the vibration measurement of roller bearing in the prior art does not consider that the dead weight of Bearing inner roller to shake to bearing
Dynamic influence, the technical issues of being unsatisfactory for bearing outer ring actual radial load.
To achieve the above object, the present invention proposes a kind of roller bearing vibration measurement device, tested including being used to install
Mandrel, sensor and the radial loaded mechanism of bearing, the sensor are located at the top of mandrel, and the gauge head and the heart of sensor
The outer surface of cupular part of measured bearing is in contact on axis, forms contact point C, and the radial loaded mechanism is set respectively including two groups
The first radial loaded component and the second radial loaded component below mandrel.
Preferably, the first radial loaded component is flexible by the first sliding block and first on the first sliding block
Cushion block is formed, and the second radial loaded component is by the second sliding block and the on the second sliding block second flexible cushion block structure
Into, at the top of the described first flexible cushion block and the second flexible cushion block top with measured bearing outer ring appearance mounted on a mandrel
Face is in contact, and is respectively formed contact point A and contact point B, and applies radial load to measured bearing, the contact point A and connects
Contact B and mandrel are centrally formed an angle theta, and contact point A and contact point B are at the top of the gauge head of sensor and measured bearing
Contact point C concentric shafts the line of centres be symmetrical axial symmetry.
Preferably, the radial load that the first flexible cushion block and the second flexible cushion block applies measured bearing is big
It is small identical.
Preferably, the mandrel, the first radial loaded component and the second radial loaded component are arranged at vertically admittedly
On fixed board, the first sliding groove and second sliding slot, the side of opening up of the first sliding groove are symmetrically arranged in the vertical fixed plate
To identical with the line of centres of contact point A concentric shafts, and the first sliding block can be slided along the first sliding groove and to pass through fastener tight
Gu the second sliding slot to open up direction identical with the line of centres of contact point B concentric shafts, and the second sliding block can be along
Two sliding slots are slided and are fastened by fastener, and the mandrel is connected by the vertical fixed plate of bearing, and mandrel one end with
Driving motor connects.
Preferably, the gauge head of the sensor and the contact point C of measured bearing mandrel it is vertical radially, it is described
The first radial loaded component and the second radial loaded component about center roller vertical radial symmetric set.
Preferably, further including locking device, the locking device is a threaded mandrel, and the center of the mandrel is set
Centre bore screw thread is equipped with, and several flutings communicated with centre bore screw thread are provided in mandrel, the fluting is with centre bore
It is uniformly distributed centered on screw thread, the threaded mandrel is connected with centre bore screw thread.
Preferably, the diameter of the threaded mandrel gradually increases along the central shaft of mandril from front end to rear end, and
The one rotation handwheel of rear end setting of mandril.
Beneficial effects of the present invention：Compared with prior art, a kind of roller bearing vibration measurement device provided by the invention,
It is rational in infrastructure, it is first that measured bearing is mounted on a mandrel during measurement, make measured bearing can be with central axis, and pass through locking dress
It puts and certain prefastening load is applied to the inner ring end face of measured bearing, to ensure that operating is stablized；Then the first sliding block and are pushed
Two sliding blocks carry out the outer ring of measured bearing by the first flexible cushion block and the second flexible cushion block the radial loaded of same size,
Make loading direction straight up, then sensor be placed in the top of measured bearing, and ensure that sensor does not depart from measured bearing,
Central axis is driven by driving motor, makes measured bearing with central axis, at this point, passing through the sensor being placed at the top of measured bearing
To measure the vibration values at the top of measured bearing, and readout value.The invention enables the load used in measurement and actual uses
The load that middle (center) bearing is born is identical, reduces measurement error, ensure that bearing during use of installing, vibration, noise
The requirement of client can be reached.
The feature and advantage of the present invention will be described in detail by embodiment combination attached drawing.
【Description of the drawings】
Fig. 1 is a kind of structure diagram of roller bearing vibration measurement device of the embodiment of the present invention；
Fig. 2 is the structure diagram of the mandril of the embodiment of the present invention.
【Specific embodiment】
Understand to make the object, technical solutions and advantages of the present invention clearer, below by accompanying drawings and embodiments, to this
Invention is further elaborated.However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention,
The range being not intended to restrict the invention.In addition, in the following description, the description to known features and technology is omitted, to keep away
Exempt from unnecessarily to obscure idea of the invention.
Refering to Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of roller bearing vibration measurement device, and quilt is installed including being used for
Mandrel 1, sensor 2 and the radial loaded mechanism of bearing 7 are surveyed, the sensor 2 is located at the top of mandrel 1, and sensor 2
Gauge head is in contact with the outer surface of cupular part of measured bearing 7 in mandrel 1, forms contact point C, and the radial loaded mechanism includes two
Group is separately positioned on 1 the first radial loaded component 3 of lower section of mandrel and the second radial loaded component 4.
Further, the first radial loaded component 3 by the first sliding block 31 and on the first sliding block 31
One flexible cushion block 32 is formed, the second radial loaded component 4 by the second sliding block 41 and on the second sliding block 41 the
Two flexible cushion blocks 42 are formed, at the top of the described first flexible 32 top of cushion block and the second flexible cushion block 42 with mounted on mandrel 1
On 7 outer ring outer surface of measured bearing be in contact, be respectively formed contact point A and contact point B, and measured bearing 7 is applied radially
Load, the contact point A and contact point B and the angle theta that is centrally formed of mandrel 1, and contact point A and contact point B are to pass
The gauge head of sensor 2 and the line of centres of the contact point C concentric shafts 1 at 7 top of measured bearing are symmetrical axial symmetry.
Wherein, the radial load that the first flexible flexible cushion block 42 of cushion block 32 and second applies measured bearing 7
Size is identical, and the mandrel 1, the first radial loaded component 3 and the second radial loaded component 4 are arranged at vertical fixed plate 5
On, the first sliding groove 51 and second sliding slot 52 are symmetrically arranged in the vertical fixed plate 5, the first sliding groove 51 opens up
Direction is identical with the line of centres of contact point A concentric shafts 1, and the first sliding block 31 can be slided along the first sliding groove 51 and be passed through tight
Firmware fastens, the second sliding slot 52 to open up direction identical with the line of centres of contact point B concentric shafts 1, and the second sliding block
41 can slide along second sliding slot 52 and be fastened by fastener, and the mandrel 1 is connected by the vertical cooperation of fixed plate 5 of bearing
It connects, and 1 one end of mandrel is connect with driving motor.
In embodiments of the present invention, the gauge head of the sensor 2 and the contact point C of measured bearing 7 are in the vertical of mandrel 1
Radially, the first radial loaded component 3 and the second radial loaded component 4 are set about the vertical radial symmetric of center roller 1
It puts.
Further, locking device is further included, the locking device is a threaded mandrel 6, in the mandrel 1
The heart is provided with centre bore screw thread 11, and several flutings 12 communicated with centre bore screw thread 11 are provided in mandrel 1, and described opens
Slot 12 is uniformly distributed centered on centre bore screw thread 11, and the threaded mandrel 6 is connect with 11 thread fitting of centre bore screw thread, institute
The diameter of threaded mandrel 6 stated gradually increases along the central shaft of mandril 6 from front end to rear end, and the rear end setting one of mandril 6
Rotate handwheel 61.
The course of work of the present invention：
Measured bearing 7 during the work time, during measurement, is first mounted on by a kind of roller bearing vibration measurement device of the present invention
In mandrel 1, make measured bearing 7 that can be rotated with mandrel 1, and pass through and rotate threaded mandrel 6 and make outside the axial wall of mandrel 1, to tested
The inner ring end face of bearing applies certain prefastening load, to ensure that operating is stablized；Then the first sliding block 31 and the second sliding block are pushed
41, the radial loaded of same size is carried out to the outer ring of measured bearing 7 by the first flexible flexible cushion block 42 of cushion block 32 and second,
Make loading direction straight up, then sensor 2 is placed in the top of measured bearing 7, and ensure that sensor 2 does not depart from measured axis
7 are held, is rotated by driving motor driving mandrel 1, measured bearing 7 is made to be rotated with mandrel 1, at this point, by being placed in 7 top of measured bearing
Sensor 2 measure the vibration values at the top of measured bearing 7, and readout value.The invention enables the load used in measurement
It is identical with the load that actual use middle (center) bearing is born, measurement error is reduced, ensure that bearing during use of installing,
Vibration, noise can reach the requirement of client.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent replacement or improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of roller bearing vibration measurement device, it is characterised in that：Including being used to install the mandrel (1) of measured bearing (7), pass
Sensor (2) and radial loaded mechanism, the sensor (2) is positioned at the top of mandrel (1), and the gauge head and the heart of sensor (2)
The outer surface of cupular part of measured bearing (7) is in contact on axis (1), forms contact point C, and the radial loaded mechanism includes two components
It is not arranged on the first radial loaded component (3) and the second radial loaded component (4) below mandrel (1).
2. a kind of roller bearing vibration measurement device as described in claim 1, it is characterised in that：First radial loaded
Component (3) is made of the first sliding block (31) and the on the first sliding block (31) first flexible cushion block (32), and described second
Radial loaded component (4) is made of the second sliding block (41) and the on the second sliding block (41) second flexible cushion block (42), institute
At the top of the first flexible cushion block (32) stated and the second flexible cushion block (42) top with the measured bearing in mandrel (1)
(7) outer ring outer surface is in contact, and is respectively formed contact point A and contact point B, and apply radial load to measured bearing (7), described
Contact point A and contact point B and mandrel (1) be centrally formed an angle theta, and contact point A and contact point B are with sensor (2)
Gauge head and measured bearing (7) at the top of the lines of centres of contact point C concentric shafts (1) be symmetrical axial symmetry.
3. a kind of roller bearing vibration measurement device as claimed in claim 2, it is characterised in that：The flexible cushion block of described first
(32) it is identical with the radial load size that the second flexible cushion block (42) applies measured bearing (7).
4. a kind of roller bearing vibration measurement device as claimed in claim 2, it is characterised in that：The mandrel (1), first
Radial loaded component (3) and the second radial loaded component (4) are arranged in vertical fixed plate (5), the vertical fixed plate
(5) the first sliding groove (51) and second sliding slot (52) are symmetrically arranged on, the first sliding groove (51) opens up direction with contacting
The line of centres of point A concentric shafts (1) is identical, and the first sliding block (31) can slide along the first sliding groove (51) and pass through fastener
Fastening, the second sliding slot (52) to open up direction identical with the line of centres of contact point B concentric shafts (1), and the second sliding block
(41) it can slide along second sliding slot (52) and be fastened by fastener,
The mandrel (1) is connected by the vertical fixed plate of bearing (5), and mandrel (1) one end is connect with driving motor.
5. a kind of roller bearing vibration measurement device as described in claim 1, it is characterised in that：The sensor (2)
The contact point C of gauge head and measured bearing (7) mandrel (1) it is vertical radially, the first radial loaded component (3) and the
Two radial loaded components (4) are set about the vertical radial symmetric of center roller (1).
6. a kind of roller bearing vibration measurement device as described in claim 1, it is characterised in that：Locking device is further included, institute
The locking device stated is a threaded mandrel (6), and the mandrel (1) is provided centrally with centre bore screw thread (11), and in mandrel
(1) several flutings (12) communicated with centre bore screw thread (11) are provided on, the fluting (12) is with centre bore screw thread (11)
Centered on be uniformly distributed, the threaded mandrel (6) is connect with centre bore screw thread (11) thread fitting.
7. a kind of roller bearing vibration measurement device as described in claim 1, it is characterised in that：The threaded mandrel (6)
Diameter gradually increase from front end to rear end along the central shaft of mandril (6), and mandril (6) rear end setting one rotation handwheel
(61)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711429256.4A CN108225771A (en) | 2017-12-26 | 2017-12-26 | A kind of roller bearing vibration measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711429256.4A CN108225771A (en) | 2017-12-26 | 2017-12-26 | A kind of roller bearing vibration measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108225771A true CN108225771A (en) | 2018-06-29 |
Family
ID=62647877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711429256.4A Withdrawn CN108225771A (en) | 2017-12-26 | 2017-12-26 | A kind of roller bearing vibration measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108225771A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337172A (en) * | 2019-09-23 | 2020-06-26 | 北京交通大学 | Bearing internal load distribution detection structure, calibration structure and detection method |
| CN113847981A (en) * | 2021-09-16 | 2021-12-28 | 国家电网有限公司 | Mechanical characteristic-based hydroelectric generating set protective vibration monitoring method |
-
2017
- 2017-12-26 CN CN201711429256.4A patent/CN108225771A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337172A (en) * | 2019-09-23 | 2020-06-26 | 北京交通大学 | Bearing internal load distribution detection structure, calibration structure and detection method |
| CN113847981A (en) * | 2021-09-16 | 2021-12-28 | 国家电网有限公司 | Mechanical characteristic-based hydroelectric generating set protective vibration monitoring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104354135B (en) | Aero-engine turns stator and assembles/measure five degree of freedom adjustment localization method and device | |
| CN106124214B (en) | A kind of testing stand of bearings synthesis loading device | |
| WO2023004911A1 (en) | Self-aligning rolling bearing performance testing apparatus and rigidity testing method | |
| CN104792532B (en) | Thrust bearing equipment test device peculiar to vessel | |
| CN108225771A (en) | A kind of roller bearing vibration measurement device | |
| CN103921101B (en) | Large-scale heavy duty installation electromagnetical clutch mounting and adjusting frock and method | |
| CN103994856B (en) | A kind of high speed rotor dynamic response test platform calibration standard rotor | |
| CN206772468U (en) | Engine Block Test device | |
| CN108871768A (en) | Involute spline pair fretting wear experimental rig under a kind of ultrasonic vibration | |
| CN107907331A (en) | Rigidity of hub bearings testing machine | |
| CN109297624A (en) | A kind of auxiliary device for calculating deep groove ball bearing moment of friction | |
| CN105547348B (en) | A kind of semi-hardware type simulation test turntable and its coupling structure | |
| CN207741936U (en) | Automobile hub bearing tester | |
| CN203396525U (en) | Testing machine for friction torque of automobile hub bearing | |
| CN206311309U (en) | A kind of bushing test device | |
| CN206436156U (en) | A kind of heavy parts magnetic holding device | |
| CN208860506U (en) | A kind of auxiliary device for calculating deep groove ball bearing moment of friction | |
| CN205785012U (en) | A kind of bearing clearance detection device | |
| CN103267641B (en) | Temperature-rise test device and method for sealed double-row angular contact ball bearings | |
| CN103091104A (en) | Bearing vibration signal acquisition testing device | |
| CN109612631B (en) | Engine rotational inertia measuring device | |
| CN208091695U (en) | Lead screw transmission loads the rolling bearing fatigue life experimental rig of radially alternating load | |
| CN105157508B (en) | The tooth runout detection means of bevel gear | |
| CN207961266U (en) | A kind of bearing support shafting of energy aligning | |
| CN106441788A (en) | Rotating disk apparatus for wind tunnel jet pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180629 |
|
| WW01 | Invention patent application withdrawn after publication |