CN209247239U - The non-contact support mechanism of high-speed, high precision bearing roller unbalance dynamic measuring device - Google Patents
The non-contact support mechanism of high-speed, high precision bearing roller unbalance dynamic measuring device Download PDFInfo
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- CN209247239U CN209247239U CN201822109721.2U CN201822109721U CN209247239U CN 209247239 U CN209247239 U CN 209247239U CN 201822109721 U CN201822109721 U CN 201822109721U CN 209247239 U CN209247239 U CN 209247239U
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Abstract
The utility model belongs to roller unbalance dynamic field of measuring technique, proposes a kind of non-contact support mechanism of high-speed, high precision bearing roller unbalance dynamic measuring device.A kind of non-contact support mechanism of the high-speed, high precision bearing roller unbalance dynamic measuring device proposed is the static air pressure air bearing seat for carrying out non-contact support to roller to be detected, the static air pressure air bearing seat is the closed tubular structure in lower end surface, and the internal diameter of the static air pressure air bearing seat is greater than the diameter of roller to be detected；The lower end surface of the static air pressure air bearing seat has multiple axial spray orifices；It is evenly equipped with multiple radial spray orifices the wall surface ring week of the static air pressure air bearing seat；The corresponding axial spray orifice, radial spray orifice are respectively arranged with steam supply valve I, steam supply valve II.The utility model, at non-contact support, eliminates the influence of outer bound pair roller unbalance dynamic measurement, improves measurement accuracy to roller shape to be detected.
Description
Technical field
The utility model belongs to roller unbalance dynamic field of measuring technique more particularly to a kind of high-speed, high precision bearing roller
The non-contact support mechanism of unbalance dynamic measuring device.
Background technique
Recently as the development of national economy and industrial circle, China's equipment manufacture is gradually to high speed, high-precision, height
Efficiency transformation.Bearing is to realize high speed, high-precision important component, and the precision of bearing is very big as the important support of equipment industry
The unbalance dynamic precision of roller is depended in degree.
Under the circumference of the high-speed rotation, the unbalance dynamic of roller can generate very big centrifugal force, and bearing is caused to vibrate,
It will have a direct impact on the machining accuracy of system when vibrating excessive；Biggish centrifugal force can change the stress of roller simultaneously, influence
The stress distribution of inner and outer ring raceway increases the probability of bearing fatigue damage；Roller can also be aggravated when unbalance dynamic is more serious and kept
The abrasion of frame, retainer and inner and outer ring raceway reduces bearing service life etc.；Therefore, to high-speed, high precision bearing roller it is dynamic not
Balance is measured and is particularly important.
Fig. 1, Fig. 2 provide the structural schematic diagram of unbalance dynamic measuring device in the prior art, using Fig. 1, shown in Fig. 2 dynamic
The measurement method that disequilibrium survey device carries out unbalance dynamic is that roller 6 to be detected is placed into support by manually putting on belt
On idler wheel 5, the power supply of motor 2 is opened, drives roller 6 to be detected to rotate by belt 4, the unbalancing value of roller 6 to be detected
Measurement hinged system 1 is passed to by back-up roller wheel 5, can be surveyed by the vibrating sensor 3 being mounted on measurement hinged system 1
The unbalance dynamic information of roller is obtained, and carries out subsequent processing in import information acquisition and analysis system；So far high speed and super precision is completed
Spend the unbalance dynamic measurement of bearing roller.
But above-mentioned unbalance dynamic measurement method is not met by the unbalance dynamic measurement of high speed, high-precision bearing roller, and
And there is also following deficiencies for existing unbalance dynamic measurement hinged system:
1) the requirement revolving speed of high-speed, high precision bearing is very high, and the revolving speed of industrial actual requirement high-speed main spindle will reach 8000 turns
More than, and existing unbalance dynamic measurement hinged system can only be measured due to the limitation of method under lower-speed state, it is difficult to
Meet the revolving speed needs of high-speed, high precision roller unbalance dynamic measurement.
2) hinged system is measured for roller unbalance dynamic, can the unbalancing value that accurately obtain roller be to guarantee measurement
The key point of result precision, but existing measurement method is inevitably limited by device.That is the dynamic injustice of roller
Measure by drive roller rotate main shaft and support roller tooling limited, due to drive roller rotate main shaft and
Itself all there is unbalancing value in support roller tooling, therefore when measuring the unbalancing value of roller, due to roller to be detected
With support roller tooling directly contact, vibration acquisition system acquisition to signal be not only roller to be detected vibration signal.
Measuring signal is also mingled with the unbalance dynamic information of other components, influences the precision of roller unbalance dynamic measurement.
When measuring the unbalancing value of roller, measuring device includes tooling to support roller and to drive rolling
The driving mechanism of son rotation；Tooling and driving mechanism need mutually to complete the measurement of roller unbalancing value；Patent application master
It will be for support the tooling of roller to improve.
Utility model content
The shortcomings that in order to overcome above-mentioned unbalance dynamic measuring device and method, the purpose of the utility model is to provide a kind of high
The non-contact support mechanism of fast high-precision bearing roller unbalance dynamic measuring device.
The utility model is to complete above-mentioned purpose to adopt the following technical scheme that
A kind of non-contact support mechanism of high-speed, high precision bearing roller unbalance dynamic measuring device, non-contact support mechanism
For the static air pressure air bearing seat for carrying out non-contact support to roller to be detected, the static air pressure air bearing seat is lower end surface
Closed tubular structure, and the internal diameter of the static air pressure air bearing seat is greater than the diameter of roller to be detected；The static air pressure gas
The lower end surface of floating seat has multiple axial spray orifices；It is evenly equipped with multiple radial spray orifices the wall surface ring week of the static air pressure air bearing seat；
The corresponding axial spray orifice, radial spray orifice are respectively arranged with steam supply valve I, steam supply valve II.
The utility model proposes a kind of high-speed, high precision bearing roller unbalance dynamic measuring device non-contact support machine
Structure carries out non-contact support to roller to be detected using static air pressure air bearing seat, and in measurement process, static air pressure air bearing seat is right
Roller to be detected forms non-contact support, eliminates the influence of outer bound pair roller unbalance dynamic measurement, improves measurement accuracy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of unbalance dynamic measuring device in the prior art.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the structural schematic diagram of the utility model.
Fig. 4 is the enlarged drawing of part A in Fig. 3.
In figure: 1, measurement hinged system, 2, servo motor, 3, vibrating sensor, 4, driving belt, 5, back-up roller wheel, 6,
Roller to be detected, 7, static air pressure air bearing seat, 7-1, steam supply valve I, 7-2, radial spray orifice, 7-3, axial spray orifice, 7-4, gas supply
Valve II, 8, track, 9, negative pressure sucker, 10, electro spindle, 11, supporting plate, 12, negative pressure steam supply valve, 13, driving motor, 14, rotation
Adapter, 15, laser range sensor.
Specific embodiment
The utility model is illustrated with reference to the drawings and specific embodiments, high-speed, high precision bearing roller unbalance dynamic is surveyed
Amount device includes the tooling to support roller and the driving mechanism to drive roller to rotate；This document mainly for
The tooling of support roller improves.
As shown in Figure 3, Figure 4, a kind of non-contact support mechanism of high-speed, high precision bearing roller unbalance dynamic measuring device,
Non-contact support mechanism is the static air pressure air bearing seat 7 for carrying out non-contact support to roller 6 to be detected, and the air is quiet
Floating seat 7 of calming the anger is the closed tubular structure in lower end surface, and the internal diameter of the static air pressure air bearing seat 7 is greater than roller 6 to be detected
Diameter；The lower end surface of the static air pressure air bearing seat 7 has multiple axial spray orifice 7-3；The wall surface of the static air pressure air bearing seat 7
It is evenly equipped with multiple radial spray orifice 7-2 ring week；Corresponding axial spray orifice 7-3, the radial direction spray orifice 7-2 are respectively arranged with steam supply valve I
7-4, II 7-1 of steam supply valve；The roller to be detected 6 is when I 7-1 of steam supply valve, II 7-4 of steam supply valve are opened, axial, diameter
To being suspended in the static air pressure air bearing seat 7.
The structure for the driving mechanism being used cooperatively with non-contact support mechanism are as follows: driving mechanism has to be detected to drive
The electro spindle 10 of roller rotation；The electro spindle 10 is located at the top of static air pressure air bearing seat 7；The electro spindle 10 is fixed
On supporting plate 11, and the supporting plate 11 is located on track 8；In the embodiment, the electro spindle can be common electro spindle, can also
For air-flotation electric spindle, common electro spindle, air-flotation electric spindle structure be technical pattern mature in the prior art, do not do herein
Excessive explanation；The corresponding supporting plate 11 is provided with the driving motor 13 to drive it to move up and down；The electro spindle 10
Lower end is fixed with the negative pressure sucker 9 to adsorb roller to be detected；The negative pressure sucker 9 is connected to negative pressure by rotary joint 14 and supplies
Air valve 12；When negative pressure steam supply valve 12 is opened, axial, to be detected roller 6 of the radial suspension in the static air pressure air bearing seat 7 exists
It is adsorbed under suction function with the negative pressure sucker 9 and is integrated and is rotated with the electro spindle 10；When the revolving speed of electro spindle 10
When reaching setting speed, negative pressure steam supply valve 12, axial, to be detected rolling of the radial suspension in the static air pressure air bearing seat are closed
Son 6 is separated with negative pressure sucker, and continues to rotate under effect of inertia；The static air pressure air bearing seat and it is fixed on work top
On measurement hinged system 1 it is hinged；It is total with the rotation of roller to be detected with the hinged measurement hinged system 1 of static air pressure air bearing seat
With swinging, there is the vibration measured to the unbalancing value information to roller to be detected on the measurement hinged system 1
Dynamic sensor 3；The vibrating sensor 3 is connected with information collection and analysis system, is used for roller unbalance dynamic to be detected
Measurement, acquisition and the analysis of information；Measurement hinged system 1, information collection and the analysis system is using in the prior art
Structure.
10 lower end of electro spindle is equipped with to the distance between negative pressure sucker 9 and 6 upper surface of roller to be detected
The laser range sensor 15 detected.
Using a kind of aforementioned method that high-speed, high precision bearing roller unbalance dynamic measuring device measures, step is such as
Under:
1) I 7-1 of steam supply valve, II 7-4 of steam supply valve, are opened, roller 6 to be detected is put into static air pressure air bearing seat 7, and is hanged
It floats in static air pressure air bearing seat 7；
2), driving motor 13 drives supporting plate 11 to decline, and electro spindle 10 and the negative pressure sucker 9 of electro spindle lower end is driven to decline,
And the distance between negative pressure sucker 9 and 6 upper surface of roller to be detected are detected by laser range sensor 15, work as Laser Measuring
When detecting that the distance between 6 upper surface of roller to be detected and negative pressure sucker 9 are reached at a distance from set away from sensor 15, driving
13 stop motion of motor；Then negative pressure steam supply valve 12 is opened, roller 6 to be detected is adsorbed on negative pressure sucker 9；
3), starting electro spindle 10 makes it accelerate rotation, and electro spindle drives negative pressure sucker and the roller to be detected to revolve together
Turn, while the revolving speed of electro spindle 10 is detected；
4) when the revolving speed of electro spindle 10 reaches test request, close negative pressure steam supply valve 12, the roller to be detected 6 with it is negative
It presses sucker 9 to separate, continues to rotate under the action of inertia, and axial, radial suspension is in the static air pressure air bearing seat 7；
Since there are unbalance dynamics for roller 6 to be detected during roller rotation to be detected, lead to static air pressure air bearing
Seat 7 vibrates；The vibration of the static air pressure air bearing seat passes on the measurement hinged system 1 hinged with it, and by measuring
Vibrating sensor 3 on hinged system 1 measures the unbalance dynamic information of roller to be detected, and import information acquisition and analysis system
Middle carry out subsequent processing so far completes the unbalance dynamic measurement of high-speed, high precision bearing roller.
Claims (1)
1. a kind of non-contact support mechanism of high-speed, high precision bearing roller unbalance dynamic measuring device, it is characterised in that: non-to connect
Touching supporting mechanism is the static air pressure air bearing seat for carrying out non-contact support to roller to be detected, the static air pressure air bearing
Seat is the closed tubular structure in lower end surface, and the internal diameter of the static air pressure air bearing seat is greater than the diameter of roller to be detected；It is described
The lower end surface of static air pressure air bearing seat has multiple axial spray orifices；The wall surface ring week of the static air pressure air bearing seat is evenly equipped with multiple
Radial spray orifice；The corresponding axial spray orifice, radial spray orifice are respectively arranged with steam supply valve I, steam supply valve II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822109721.2U CN209247239U (en) | 2018-12-17 | 2018-12-17 | The non-contact support mechanism of high-speed, high precision bearing roller unbalance dynamic measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822109721.2U CN209247239U (en) | 2018-12-17 | 2018-12-17 | The non-contact support mechanism of high-speed, high precision bearing roller unbalance dynamic measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209247239U true CN209247239U (en) | 2019-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822109721.2U Active CN209247239U (en) | 2018-12-17 | 2018-12-17 | The non-contact support mechanism of high-speed, high precision bearing roller unbalance dynamic measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646378A (en) * | 2020-12-21 | 2022-06-21 | 财团法人金属工业研究发展中心 | Vibration force measuring device |
-
2018
- 2018-12-17 CN CN201822109721.2U patent/CN209247239U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646378A (en) * | 2020-12-21 | 2022-06-21 | 财团法人金属工业研究发展中心 | Vibration force measuring device |
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