CN203275090U - Test device for testing bending resistance of air bearing - Google Patents
Test device for testing bending resistance of air bearing Download PDFInfo
- Publication number
- CN203275090U CN203275090U CN 201320180650 CN201320180650U CN203275090U CN 203275090 U CN203275090 U CN 203275090U CN 201320180650 CN201320180650 CN 201320180650 CN 201320180650 U CN201320180650 U CN 201320180650U CN 203275090 U CN203275090 U CN 203275090U
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- China
- Prior art keywords
- air
- bearing
- ferromagnet
- air floating
- base
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- Expired - Lifetime
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- 238000005452 bending Methods 0.000 title claims abstract description 15
- 238000012360 testing method Methods 0.000 title abstract description 13
- 238000007667 floating Methods 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims description 12
- 229910000805 Pig iron Inorganic materials 0.000 claims description 4
- 238000005188 flotation Methods 0.000 claims description 4
- 230000005294 ferromagnetic effect Effects 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000005291 magnetic effect Effects 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- KGWWEXORQXHJJQ-UHFFFAOYSA-N [Fe].[Co].[Ni] Chemical compound [Fe].[Co].[Ni] KGWWEXORQXHJJQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model provides a test device for testing the bending resistance of an air bearing, which comprises a frame, an air floating cushion, an electromagnet, a force sensor and a ferromagnet. The frame is composed of a horizontally arranged base and a vertically arranged bracket. The bottom of the bracket is arranged on the base. The air floating shaft of the air bearing is sleeved inside an air floating sleeve. The air floating sleeve is sleeved inside an air floating socket. The air floating socket is fixed onto the bracket through a connecting piece. The ferromagnet is sheathed at the bottom of the air floating shaft. The air floating cushion is arranged on the base and is concentric with the air floating shaft. The ferromagnet is positioned above the air floating cushion and is connected with the air floating cushion in an air floating manner. The electromagnet is connected with the force sensor. The force sensor is connected with a fixed seat and the fixed seat is arranged on the base. The electromagnet positioned right opposite to the ferromagnet is arranged at the side edge of the ferromagnet. According to the technical scheme of the utility model, a loading mechanism is not directly contacted with the air bearing and the detection is carried out dynamically. Meanwhile, the test device for testing the bending resistance of the air bearing is convenient in operation.
Description
Technical field
The utility model relates to the air-bearing field tests, especially a kind of air-bearing bending resistance proving installation.
Background technology
Along with the development of science and technology, often adopt gas lubrication to replace common power lubrication, air-bearing is exactly gases at high pressure to be introduced in the object gap of relative motion form air film, and avoiding directly, contact realizes frictionless motion.
Air-bearing has the characteristics such as speed is high, precision is high, low in energy consumption, the life-span is long as a newtype of sliding bearing.Because the air film between air-bearing shafts and air supporting cover is very thin, thus very high to the component processing accuracy requirement, so air-bearing also exists carrying little, the shortcomings such as rigidity is low, poor reliability.
For satisfying industrial circle to the requirement of air-bearing, need to carry out the properties test to air-bearing, whether meet processing request with the check air-bearing, be that 201010180373.3 " a kind of device for detecting performance of static-pressure air bearing " just proposed a kind of different geometries static-pressure air bearing that can detect under different supply gas pressures and different air-film thickness as application number, the pressure distribution of gas in the load-bearing capacity of bearing and rigidity and bearing; Application number is that 201010530570.3 " device for testing stiffness of air-bearing " can test the rigidity of single air-bearing and the rigidity of combined air flotation bearing.The load-bearing capacity of air film between two air bearing surface when but these two kinds of proving installations all can only test out static state, air-bearing generally is in dynamical state in the course of the work, produce moment of flexure when stressed and deflect when air-bearing shafts is single-ended, affect the state of air film in the air supporting gap, there is no a kind of feasible pick-up unit that is applicable to the air-bearing bending resistance and testing standard in industry at present.
Summary of the invention
Can not realize the deficiency of the bending resistance test of air-bearing in order to overcome prior art, the utility model provides that a kind of load maintainer of power does not directly contact with air-bearing, detection of dynamic, easy to operate air-bearing bending resistance proving installation.
The technical scheme that its technical matters that solves the utility model adopts is:
a kind of air-bearing bending resistance proving installation, comprise frame, floating cushion, electromagnet, power sensor and ferromagnet, described frame comprises horizontally disposed base and the support of vertically arranging, described frame bottom is arranged on base, the air suspension shaft sleeve of described air-bearing is contained in the air supporting cover, described air supporting cover is sleeved in the air supporting block set, described air supporting block set is fixed on support by web member, described ferromagnet is sleeved on the bottom of air-bearing shafts, described floating cushion is arranged on base, described floating cushion is concentric with air-bearing shafts, described ferromagnet is positioned on described floating cushion and air-flotation type connection between the two, described electromagnet is connected with the power sensor, described power sensor is connected with holder, described holder is arranged on base, described electromagnet be positioned at described ferromagnetic side and with ferromagnet over against relative.
Further, be connected on support described web member adjustable position.
Further again, described ferromagnet is pig iron head.Also can adopt other can be by the ferromagnet that magnet held.
Technical conceive of the present utility model is: air-bearing shafts is in stable state under the effect of self gravitation and floating cushion, when rotating, do not introduce air-bearing shafts other external force, produce magnetic fields on pig iron head by electromagnet, applied the power along its radial direction for the air-bearing shafts end, be not in contact with one another between electromagnet and air-bearing shafts, do not affect the motion state of air-bearing shafts.Come by the size of regulating magnet coil current that slowly increasing action is in the size of air-bearing shafts end power, range of adjustment is large, precision is high.The air supporting cover can be adjusted by web member position, the size that can regulate the arm of force of applied force on support.
This programme has utilized the magnetic force principle to realize, described ferromagnet refers to produce the material of the strong complementary field identical with external magnetic field under magnetic fields, described ferromagnet comprises iron-cobalt-nickel etc., attract after its magnetic force that can be produced by electromagnet, the electromagnet of described belt coil can change by the size that change passes into electric current the size of magnetic force.
This proving installation is only applicable to the air-bearing that aluminum alloy materials etc. is not affected by electromagnet.
The beneficial effects of the utility model are mainly manifested in: the load maintainer of power does not directly contact with air-bearing, detection of dynamic, easy to operate.
Description of drawings
Fig. 1 is air-bearing bending resistance proving installation schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
With reference to Fig. 1, a kind of air-bearing bending resistance proving installation comprises floating cushion 4, electromagnet 5, power sensor 6, ferromagnet 8, support 2, base 3, web member 1, holder 7.the air-bearing shafts 9 of described air-bearing is sleeved in air supporting cover 10, described air supporting cover 10 is sleeved in air supporting block set 11, described air supporting block set 11 is fixed on support 2 by web member 1, described ferromagnet 8 is sleeved on the bottom of air-bearing shafts 9, described floating cushion 4 is arranged on base 3, described floating cushion 4 is concentric with air-bearing shafts 9, described ferromagnet is positioned on described floating cushion and air-flotation type connection between the two, the rear installing force sensor 6 of described electromagnet 5 also is arranged on base 3 by holder 7, described electromagnet 5 is positioned at the side of described ferromagnet 8, and the effect by magnetic field corresponding with ferromagnet 8 of the position of described electromagnet 5 applied a load radially to the air-bearing shafts end.
Further, described support 2 vertically is fixed on base 3, described web member 1 can adjust the position on support 2 and can measure it and base 3 surfaces between distance, described support 2, web member 1 all adopt material not affected by magnetic fields.
Further again, described ferromagnet 8 is pig iron head.Also can adopt other can be by the ferromagnet that magnet held.
The course of work of the present embodiment: give floating cushion 4 air feed, there are not friction force in air-bearing shafts 9 bottoms and floating cushion 4 surfaces by gas lubrication, rotary pneumatic floating axle 9 makes it rotate with certain speed, power and continue to increase electric current for electromagnet 5, the power that acts on the air-bearing shafts end also constantly increases, air-bearing shafts 9 cards are parked in air supporting cover 10 and record the numerical value of power sensor 6 at this moment when reaching capacity, measure arm of force size by the air supporting 10 present position relations of overlapping again, thereby obtain air-bearing at the current maximal bending moment that can bear under air pressure that passes into.
This proving installation is only applicable to the gas air-bearing that aluminum alloy materials etc. is not affected by electromagnet.
Claims (3)
1. air-bearing bending resistance proving installation, it is characterized in that: comprise frame, floating cushion, electromagnet, power sensor and ferromagnet, described frame comprises horizontally disposed base and the support of vertically arranging, described frame bottom is arranged on base, the air suspension shaft sleeve of described air-bearing is contained in the air supporting cover, described air supporting cover is sleeved in the air supporting block set, described air supporting block set is fixed on support by web member, described ferromagnet is sleeved on the bottom of air-bearing shafts, described floating cushion is arranged on base, described floating cushion is concentric with air-bearing shafts, described ferromagnet is positioned on described floating cushion and air-flotation type connection between the two, described electromagnet is connected with the power sensor, described power sensor is connected with holder, described holder is arranged on base, described electromagnet be positioned at described ferromagnetic side and with ferromagnet over against relative.
2. air-bearing bending resistance proving installation as claimed in claim 1 is characterized in that: be connected on support described web member adjustable position.
3. air-bearing bending resistance proving installation as claimed in claim 1 or 2, it is characterized in that: described ferromagnet is pig iron head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320180650 CN203275090U (en) | 2013-04-10 | 2013-04-10 | Test device for testing bending resistance of air bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320180650 CN203275090U (en) | 2013-04-10 | 2013-04-10 | Test device for testing bending resistance of air bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203275090U true CN203275090U (en) | 2013-11-06 |
Family
ID=49505471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320180650 Expired - Lifetime CN203275090U (en) | 2013-04-10 | 2013-04-10 | Test device for testing bending resistance of air bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203275090U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245505A (en) * | 2013-04-10 | 2013-08-14 | 浙江工业大学 | Device for testing bending resistance of air floatation bearing |
| CN110823571A (en) * | 2019-10-22 | 2020-02-21 | 人本集团有限公司 | Bearing friction torque detection device |
-
2013
- 2013-04-10 CN CN 201320180650 patent/CN203275090U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245505A (en) * | 2013-04-10 | 2013-08-14 | 浙江工业大学 | Device for testing bending resistance of air floatation bearing |
| CN103245505B (en) * | 2013-04-10 | 2015-04-29 | 浙江工业大学 | Device for testing bending resistance of air floatation bearing |
| CN110823571A (en) * | 2019-10-22 | 2020-02-21 | 人本集团有限公司 | Bearing friction torque detection device |
| CN110823571B (en) * | 2019-10-22 | 2021-05-25 | 人本股份有限公司 | Bearing friction torque detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131106 Effective date of abandoning: 20150429 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131106 Effective date of abandoning: 20150429 |