CN108303256A - Three-point mount formula circumference radial loaded and test device - Google Patents
Three-point mount formula circumference radial loaded and test device Download PDFInfo
- Publication number
- CN108303256A CN108303256A CN201810092760.8A CN201810092760A CN108303256A CN 108303256 A CN108303256 A CN 108303256A CN 201810092760 A CN201810092760 A CN 201810092760A CN 108303256 A CN108303256 A CN 108303256A
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- test device
- load
- air bearing
- force adjustment
- air
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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
Three-point mount formula circumference radial loaded and test device of the present invention, including support base, in support base upper surface, the supporting rack that one section is equilateral triangle is set, it is respectively provided with a direction load test device in three vertex of supporting rack, the front end of three direction load test devices is connect with air bearing, tested load main shaft is worn in air bearing, load test device in direction to the load of air bearing vitality and can carry out the monitoring of loading force, the central shaft extended line of three direction load test devices meets at the central axis of support frame as described above, vee-block is fixedly installed on bottom surface in supporting rack, air bearing is arranged by the vee-block in supporting rack.Three-point mount circumference radial loaded and test device of the present invention, it can realize dynamic and static separation, air-floating main shaft static state can be simulated under static and current intelligence, its week is tested and recorded to three direction sustained continuous reinforcings, to meet air supporting hydrostatic spindle testing requirements.
Description
Technical field
The invention belongs to field of mechanical technique, and in particular to a kind of three-point mount formula circumference radial loaded and test device.
Background technology
With the development of science and technology, it is the bearing of lubricant with its minimum friction coefficient, high revolution using gas
Precision and it is pollution-free the advantages that be more and more widely used with instrument in precision machinery.Air supporting hydrostatic spindle concentrates body
High speed, efficient and high-accuracy processing performance are showed, have been one of the main direction of development of precision machine tool main shaft.To air supporting hydrostatic spindle
Nature static and the test of bearing capacity of dynamic need one kind that can continuously load, in the case that static and dynamically can be into
Row force, the displacement of institute's loaded load and vibration do not influence air supporting hydrostatic spindle, and can circumference any direction into
Row loads and added load can be tested and be recorded.
There are some air supporting hydrostatic spindle test experiments platforms in the country, these platforms some air-floating main shaft static state can only be carried out
The displacement and vibration of load, load main shaft can be passed in dynamic by accurate load；Some are loaded using counterweight, loaded load
It is very accurate, but can not realize continuous load and counterweight load sometimes can seem very heavy and can not find suitable weight
Code；Some can realize continuous load using pneumatically loading, due to the compressibility of gas and the unstability of supply gas pressure, can make
Loaded load is unstable and consistency is bad.
Invention content
The object of the present invention is to provide a kind of three-point mount formula circumference radial loaded and test devices, solve in the prior art
The problem of air supporting hydrostatic spindle test experiments platform.
The technical scheme is that：
Three-point mount formula circumference radial loaded and test device, including support base are arranged one in the support base upper surface
A section is the supporting rack of equilateral triangle, and a direction load test device is respectively provided in three vertex of support frame as described above, three
The front end of a direction load test device is connect with air bearing, and tested load main shaft, the side are worn in air bearing
To the load of air bearing vitality and the monitoring of loading force, three direction load test devices can be carried out to load test device
Central shaft extended line meet at the central axis of support frame as described above, vee-block, air bearing is fixedly installed on support frame as described above bottom surface
It is arranged in supporting rack by the vee-block, the central shaft of the air bearing and the center overlapping of axles of support frame as described above.
Further, the direction load test device includes force adjustment screw rod, force adjustment screw sleeve, thrust bearing, stayed mast, drawing
Force snesor and tension spring；The force adjustment screw sleeve is fixed at the vertex of support frame as described above, and force adjustment screw rod passes through spiral shell
Line connection is threaded through in force adjustment screw sleeve, and the lower end of the force adjustment screw rod is described to push away by positioning thrust bearing described in pin connection
The lower end of power bearing connects the stayed mast, and the lower end of the stayed mast connects the pulling force sensor, the pulling force sensor
Lower end connects the tension spring, and the tension spring lower end is connect by threaded with the outer wall of the air bearing.
Further, the upper end of the force adjustment screw rod is provided with force adjustment knob.
Further, real-time pulling force display screen is provided on the pulling force sensor.
Further, the vee-block, which is bolted, is arranged on the bottom surface of supporting rack, and air bearing is arranged in V-arrangement
It is gripped in the V-shaped groove of block and by the pressing plate of the upper end.
Further, it is provided with thrust bearing set outside the thrust bearing.
Beneficial effects of the present invention：
1, three-point mount circumference radial loaded and test device of the present invention, can realize dynamic and static separation, can simulate air-floating main shaft
Static state is tested and is recorded to three direction sustained continuous reinforcings under static and current intelligence, to its week, to meet gas
Floating hydrostatic spindle testing requirements；
2, load is directly applied in air bearing by apparatus of the present invention, to which loading force is loaded on tested load main shaft,
Displacement, vibration and the other outer disturbances generated in loading procedure is certain by having between air bearing and tested load main shaft
The air film of pressure is kept apart, and ensure that the measuring accuracy and test accuracy of tested load main shaft.
Description of the drawings
Fig. 1 is the overall structure diagram of apparatus of the present invention；
Fig. 2 is the schematic diagram of the single direction load test device of the present invention and tested load main shaft；
Fig. 3 is air bearing Internal and external cycle structural schematic diagram of the present invention；
Fig. 4 is the A-A sectional views of Fig. 3；
Fig. 5 is the B-B sectional views of Fig. 4；
In figure, 1- support bases, 2- supporting racks, 3- load test devices, 4- air bearing, 5-V shape blocks, 6- force adjustment screw rods, 7- tune
Power screw sleeve, 8- thrust bearings, 9- stayed masts, 10- pulling force sensors, 11- tension springs, 12- positioning pins, 13- threadeds,
14- pressing plates, 15- thrust axis bearing sleeves, the tested load main shafts of 16-, 4-1 flow controllers, 4-2 load bearings inner rings, 4-3 loading axis
Bearing outer-ring, 4-4 screw thread pin holes, 4-5 suction nozzles, 4-6 air channels, 4-7 seal grooves.
Specific implementation mode
Below by specific implementation mode combination attached drawing, invention is further described in detail.Wherein different embodiments
Middle similar component uses associated similar element numbers.In the following embodiments, many datail descriptions be in order to
The application is better understood.However, those skilled in the art can be without lifting an eyebrow recognize, which part feature
It is dispensed, or can be substituted by other elements, material, method in varied situations.In some cases, this Shen
Please it is relevant some operation there is no in the description show or describe, this is the core in order to avoid the application by mistake
More descriptions are flooded, and to those skilled in the art, these relevant operations, which are described in detail, not to be necessary, they
It can completely understand relevant operation according to the general technology knowledge of description and this field in specification.
Referring to the three-point mount circumference radial loaded and test device described in Fig. 1-Fig. 2, including support base 1, described
The supporting rack 2 that a section is equilateral triangle is arranged in 1 upper surface of support base, and one is respectively provided in three vertex of supporting rack 2
A direction load test device 3, the front end of three direction load test devices 3 are connect with air bearing 4, worn in air bearing 4 by
Test load main shaft 16, direction load test device 3 to the load of 4 vitality of air bearing and can carry out the monitoring of loading force, and three
The central shaft extended line of a direction load test device 3 meets at the central axis of support frame as described above 2, fixes and sets on 2 bottom surface of supporting rack
Vee-block 5 is set, vee-block 5, which is bolted, to be arranged on the bottom surface of supporting rack, and air bearing 4 is arranged in the V-shaped groove of vee-block
And it is gripped by the pressing plate of the upper end 14, the central shaft of air bearing 4 and the center overlapping of axles of support frame as described above 2.
Direction load test device 3 includes force adjustment screw rod 6, force adjustment screw sleeve 7, thrust bearing 8, stayed mast 9, pulling force sensor
10 and tension spring 11；Force adjustment screw sleeve 7 is fixed at the vertex of supporting rack 2, and force adjustment screw rod 6, which is connected through a screw thread, to be worn
In force adjustment screw sleeve 7, the upper end of force adjustment screw rod 7 is provided with force adjustment knob, and by rotating force adjustment knob, force adjustment screw rod 6 can be
It is accurately moved forward and backward in force adjustment screw sleeve 7, the lower end of force adjustment screw rod 6 connects thrust bearing 8, thrust bearing by positioning pin 12
Thrust bearing set 15 is provided with outside 8, the lower end of thrust bearing 8 connects stayed mast 9, and thrust bearing 8 can realize force adjustment screw rod 6 and draw
Dynamic and static separation of the power bar 9 during force；The lower end of stayed mast 9 connects pulling force sensor 10, the pulling force sensor 10
On be provided with real-time pulling force display screen, may be implemented real-time tensile test and display, 10 lower end of pulling force sensor connection described 11
Tension spring, 11 lower end of tension spring are connect by threaded 13 with the screw thread pin hole 4-4 of the outer wall of air bearing 4.
Referring to Fig. 3-Fig. 5, air bearing 4 is by portions such as load bearings outer ring 4-3, load bearings inner ring 4-2, flow controller 4-1
It is grouped as, tested load main shaft 16 acts on load bearings inner ring 4-2；Gas with certain steady pressure is passed through into air inlet
Mouth 4-5 enters in air channel 4-6, in order to avoid in load bearings outer ring 4-3 and load bearings inner ring 4-2 gas leakage, in-between
It is provided with seal groove 4-7, being sealed by painting fluid sealant prevents gas leakage；High pressure gas enters load bearings by air channel 4-6
The uniformly distributed flow controller 4-1 in the surfaces inner ring 4-2 is loaded subsequently into load bearings inner ring 4-2 and test in 16 air film gap of main shaft,
The unilateral gap general warranty of air film realizes the displacement and vibration of load added by tension spring 11, and energy between 0.02-0.01mm
It is enough to realize that tested load main shaft 16 realizes static and dynamic load in the air film of friction free certain pressure.
Apparatus of the present invention are loaded by adjusting the size of the loading force of three direction load test devices 3 by three directions
The different synthesis modes of 3 power of tester realize quiet, dynamic circle any direction the load load of tested load main shaft 16.
And the size of loading force is transferred to by pulling force sensor in computer and shows and stores.
A detection process example is described below：
Quiet, dynamic circle any direction the load load of tested load main shaft 16 is determined first.And by the big of loading force
It is small to pass through static state（Tested main shaft is static）Load or dynamic（Tested main shaft rotation）Load determines tested according to test request
The direction θ for loading the size F and loading force of 16 loaded load power of main shaft loads software analysis by experiment and calculates three directions
The loading force F of the tension spring 11 of load test device 31、F2、F3；It is 0.4MPa-0.7MPa's to be passed through pressure value to air bearing 4
Stabilizing gas makes the load of three pulling force sensors 10 respectively by rotating the force adjustment screw rod 6 of three direction load test devices 3
Value is adjusted to F in sequence1、F2、F3, reach big according to load in any direction of required resultant force to tested load main shaft 16
The continuous load of small needs, and real-time display and storage are carried out to load；The load of tested load main shaft 16 is loaded and is completed
Afterwards, according to the motion state of tested load main shaft 16, in the size F of the loaded load power and direction θ of loading force
Carry out test and the record of other correlation test data of tested load main shaft 16.
Present disclosure is not limited to cited by embodiment, and those of ordinary skill in the art are by reading description of the invention
And to any equivalent transformation that technical solution of the present invention is taken, it is that claim of the invention is covered.
Claims (6)
1. three-point mount formula circumference radial loaded and test device, which is characterized in that including support base（1）, in the support
Pedestal（1）The supporting rack that a section is equilateral triangle is arranged in upper surface（2）, in support frame as described above（2）Three vertex it is equal
One direction load test device is set（3）, three direction load test devices（3）Front end and air bearing（4）Connection, it is empty
Gas bearing（4）Inside wear tested load main shaft（16）, the direction load test device（3）It can be to air bearing（4）Vitality
Load and carry out the monitoring of loading force, three direction load test devices（3）Central shaft extended line meet at the support
Frame（2）Central axis, support frame as described above（2）Vee-block is fixedly installed on bottom surface（5）, air bearing（4）Pass through the vee-block
（5）It is arranged in supporting rack（2）It is interior, the air bearing（4）Central shaft and support frame as described above（2）Center overlapping of axles.
2. the apparatus according to claim 1, which is characterized in that the direction load test device（3）Including force adjustment screw rod
（6）, force adjustment screw sleeve（7）, thrust bearing（8）, stayed mast（9）, pulling force sensor（10）And tension spring（11）；The force adjustment
Screw sleeve（7）It is fixed at support frame as described above（2）Vertex, force adjustment screw rod（6）It is connected through a screw thread and is threaded through force adjustment spiral shell
Rod set（7）It is interior, the force adjustment screw rod（6）Lower end pass through positioning pin（12）Connect the thrust bearing（8）, the thrust bearing
（8）Lower end connect the stayed mast（9）, the stayed mast（9）Lower end connect the pulling force sensor（10）, the pulling force
Sensor（10）Described in the connection of lower end（11）Tension spring, the tension spring（11）Lower end passes through threaded（13）With the sky
Gas bearing（4）Outer wall connection.
3. the three-point mount formula circumference radial loaded and test device of air supporting hydrostatic spindle according to claim 1 or 2,
It is characterized in that, the force adjustment screw rod（7）Upper end be provided with force adjustment knob.
4. device according to claim 3, which is characterized in that the pulling force sensor（10）On to be provided with real-time pulling force aobvious
Display screen.
5. device according to claim 4, which is characterized in that the vee-block（5）It is bolted and is arranged in supporting rack
Bottom surface on, air bearing（4）The pressing plate for being arranged in the V-shaped groove of vee-block and passing through the upper end（14）It grips.
6. device according to claim 5, which is characterized in that the thrust bearing（8）It is provided with thrust bearing set outside
（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810092760.8A CN108303256A (en) | 2018-01-31 | 2018-01-31 | Three-point mount formula circumference radial loaded and test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810092760.8A CN108303256A (en) | 2018-01-31 | 2018-01-31 | Three-point mount formula circumference radial loaded and test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108303256A true CN108303256A (en) | 2018-07-20 |
Family
ID=62867139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810092760.8A Pending CN108303256A (en) | 2018-01-31 | 2018-01-31 | Three-point mount formula circumference radial loaded and test device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017987A (en) * | 2019-04-09 | 2019-07-16 | 深圳市骁阳工程咨询有限公司 | High speed roller bearing testing stand |
| CN110108404A (en) * | 2019-02-11 | 2019-08-09 | 哈尔滨工业大学 | A kind of shaft-radial force test device of bearing |
| WO2020073578A1 (en) * | 2018-10-10 | 2020-04-16 | 中国矿业大学 | Device for testing bearing performance of vertical shaft lifting spindle device |
| CN111238811A (en) * | 2020-01-17 | 2020-06-05 | 人本集团有限公司 | Detection device for detecting radial bearing capacity of roller bearing |
| CN114838678A (en) * | 2022-07-04 | 2022-08-02 | 河北亿泰克轴承有限公司 | Pneumatic measuring device for outer diameter of thin-wall bearing ring |
| CN114877828A (en) * | 2022-06-14 | 2022-08-09 | 中国航天标准化研究所 | Testing machine and testing method for testing aerospace bearing |
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| JPH06213771A (en) * | 1993-01-13 | 1994-08-05 | Sugawara Kenkyusho:Kk | Radial loader for measuring vibration/sound of rolling bearing |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020073578A1 (en) * | 2018-10-10 | 2020-04-16 | 中国矿业大学 | Device for testing bearing performance of vertical shaft lifting spindle device |
| CN110108404A (en) * | 2019-02-11 | 2019-08-09 | 哈尔滨工业大学 | A kind of shaft-radial force test device of bearing |
| CN110108404B (en) * | 2019-02-11 | 2021-07-20 | 哈尔滨工业大学 | Axial-radial force testing device for bearing |
| CN110017987A (en) * | 2019-04-09 | 2019-07-16 | 深圳市骁阳工程咨询有限公司 | High speed roller bearing testing stand |
| CN110017987B (en) * | 2019-04-09 | 2022-04-12 | 深圳市骁阳工程咨询有限公司 | High-speed rolling bearing test bed |
| CN111238811A (en) * | 2020-01-17 | 2020-06-05 | 人本集团有限公司 | Detection device for detecting radial bearing capacity of roller bearing |
| CN114877828A (en) * | 2022-06-14 | 2022-08-09 | 中国航天标准化研究所 | Testing machine and testing method for testing aerospace bearing |
| CN114877828B (en) * | 2022-06-14 | 2023-12-05 | 中国航天标准化研究所 | Testing machine and testing method for space bearing test |
| CN114838678A (en) * | 2022-07-04 | 2022-08-02 | 河北亿泰克轴承有限公司 | Pneumatic measuring device for outer diameter of thin-wall bearing ring |
| CN114838678B (en) * | 2022-07-04 | 2022-09-02 | 河北亿泰克轴承有限公司 | Pneumatic measuring device for outer diameter of thin-wall bearing ring |
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