CN201747773U - Cylinder roller bearing unit for angle placement measurement and control - Google Patents
Cylinder roller bearing unit for angle placement measurement and control Download PDFInfo
- Publication number
- CN201747773U CN201747773U CN2010201686256U CN201020168625U CN201747773U CN 201747773 U CN201747773 U CN 201747773U CN 2010201686256 U CN2010201686256 U CN 2010201686256U CN 201020168625 U CN201020168625 U CN 201020168625U CN 201747773 U CN201747773 U CN 201747773U
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- sensor
- roller
- bearing
- bearing unit
- angular displacement
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Abstract
The utility model relates to a cylinder roller bearing unit for angle placement measurement and control, which is composed of a moving ring, a static ring, an axial roller, a radial roller, a magnetic ruler, a sensor and a fixing frame, wherein the fixing frame surrounding the inner wall of the moving ring a circle is arranged on the static ring; the magnetic ruler is arranged on the inner wall of the moving ring; at least one sensor is arranged on a supporting ring corresponding to the magnetic ruler; and a gap between the sensor and the magnetic ruler is 0.1mm to 1mm. A cylinder combining bearing is directly combined with the magnetic ruler, and the simple supporting idea of a bearing is spanned, so a new high-precision rotary unit with angle control and measurement is formed to make real-time measurement and control for the bearing by arranging the magnetic ruler on the moving ring of the bearing and combining the sensor.
Description
Technical field
The utility model belongs to a kind of combination bearing, specifically a kind of roller bearing unit that is used for testing and controlling angular displacement.
Background technique
At present, the application area of cylindrical roller combination bearing is more and more wider, its usability is also in continuous improve, some precision equipments not only need its high rigid support, the highi degree of accuracy rotation, but also need in movement process, constantly implement to measure monitoring, for this reason, bearing in conjunction with some measuring systems just arises at the historic moment, Chinese patent for example: a kind of sensor bearing, application number is 200910100833.4, it has introduced a kind of sensor bearing structure that utilizes Hall transducer and multi-pole magnet-ring to detect bearing rotating speed and sense of rotation, this kind bearing is used to detect rotational velocity and sense of rotation, and its assembling is simple efficient, to realize automatic production, this type bearing has following shortcoming: one, measuring accuracy is lower, margin of error is bigger, can not satisfy the demand of precision equipment; Two, when the bearing unit stressed member produces amount of deflection, will have a strong impact on measurement result; Its three, when service time, long or environment was abominable, multi-pole magnet-ring very easily was worn or is covered by dust, will have a strong impact on the result of measurement.Thereby the machinery that the bearing that causes this type can't satisfy the accurate angle displacement control of some needs and measure, for example high-accuracy control apparatuss such as numerical control machine tool and numerical control machining center turntable, rocket-powered missile pad, satellites transmits platform, tank turret, radar rotating platform, operation rotating platform, field of electronic components welding turntable can't be used widely in this field at last.
The model utility content
The deficiency that the purpose of this utility model is intended to solve the problems of the technologies described above, a kind of roller bearing unit that is used for testing and controlling angular displacement is provided, its measuring accuracy height, convenient and flexible installation, the combined high precision bearing is measured in real time, and angular displacement signal fed back to control system, realized the purpose of accurate control.
The utility model is for solving the problems of the technologies described above, the technological scheme that is adopted is: the roller bearing unit that is used for testing and controlling angular displacement, form by moving-coil, Jing Quan, axial roller, radial roller, magnetic railings ruler, sensor and fixing frame, one week of inwall of fixing frame moving circle is arranged on the Jing Quan, one week of inwall at moving-coil is provided with magnetic railings ruler, being relatively fixed with magnetic railings ruler is provided with a sensor on the frame at least, and the gap between sensor and the magnetic railings ruler is 0.1mm-1mm.The difference of the variation of precision and workplace as requested, the gap can also be amplified, and maximum can arrive 10mm.
Described axial roller and radial roller are cylindrical roller.
Described magnetic railings ruler, it has three-decker, and its internal layer is the steel fixed bed, and the mesosphere is a magnetic material layer, and skin is a metal cladding, described steel fixed bed matches with the inner wall surface of the moving-coil of bearing.
Described magnetic material layer has the magnetized surface that N, the S utmost point are arranged alternately.
Described sensor, its signal output part connects with control system.
Described sensor comprises an integrated Hall chip and a shell, and described Hall chip encapsulation is integrated with Hall element and signal processing circuit in the enclosure in this Hall chip.
The beneficial effects of the utility model are:
1, the cylindrical roller combination bearing is directly combined with magnetic grid, cross over the simple supporting theory of bearing, and form brand-new band angle control and the high-precision rotary bearing unit of measuring, by magnetic railings ruler is set on the bearing moving-coil, and combined sensor is measured monitoring in real time to bearing.
2, when adopting two or more sensors to be distributed in the bearing circumference, can effectively prevent because operating force makes the bearing race system produce amount of deflection to measuring the influence that produces, sensor is measured in real time signal is transferred to external control system, effectively improves measuring accuracy.
3, the magnetic railings ruler described in the utility model; its matrix is the steel fixed bed; apply the magnetic material layer of one deck above the steel substrate at it; at its outermost surface one deck clad stainless steel cover fillet that also bonds; thereby magnetic surface is protected; make the utility model guarantee the long lifetime that it is never wornout to environmental requirement not high (dust, iron filings and humidity all require insensitive), the non-contacting magnetic mode (more than the 0.1～1mm of gap) of reading: secondly the steel fixed bed directly matches with bearing surface; easy for installation; need not supplementary structure, flexible.
4, at the built-in plus signal processing circuit of sensor, signal processing with sensor input becomes acceptable sine wave of external control system or rectangle square wave effectively, so this bearing is one and measures absolute construction, need not the external treatment device, volume is little, is convenient to install and use.
Description of drawings
Fig. 1 is the sectional view of first kind of mode of execution of the utility model.
Fig. 2 is the sectional view of second kind of mode of execution of the utility model.
Mark among the figure: 1, moving-coil, 2, Jing Quan, 3, axial roller, 4, radial roller, 5, magnetic railings ruler, 6, sensor, 7, fixing frame, 8, control system.
Embodiment
As shown in Figure 1, the utility model, the sectional view of first kind of mode of execution that is used for the roller bearing unit of testing and controlling angular displacement, comprise bearing body and measuring system, and in conjunction with measurement and control unit of external control system formation, described bearing body comprises moving-coil 1 and quiet circle 2, be provided with axial roller 3 and retainer in the end thrust raceway that forms between the upper and lower end face of quiet vertically circle 2 and the moving-coil 1, be provided with radial roller 4 and retainer in the radially raceway that forms between the right side of radially quiet circle 2 and the moving-coil 1, described measuring system mainly is made of magnetic railings ruler 5 and sensor 6, magnetic railings ruler 5 is located at the inside diameter surface of moving-coil 1 in the form of a ring, corresponding magnetic railings ruler 5 is provided with sensor 6, sensor 6 is located in the mounting hole on the fixing frame 7, and fixing frame 7 is connected by bolt or other Placement with quiet circle 2.
Described axial roller 3 and radial roller 4 are cylindrical roller.
The utility model, described moving-coil is the parts that are connected with the motion traverse platform in the bearing, is and follows the traverse platform parts that rotate in the course of the work; Described Jing Quan is the parts that are connected with supporting base in the bearing, is static relatively in the course of the work parts.
The utility model, the radial position of described its corresponding magnetic railings ruler of fixing frame is provided with the sensor mounting hole, and the quantity of mounting hole disposes according to the quantity of required sensor.
Present embodiment is a kind of structure of built-in sensors, different according to occasion of using and precision prescribed, can adopt single-sensor, double-sensor, four or more multisensor arrange, when precision prescribed is lower slightly, can adopt single-sensor to get final product, when equipment requires high-accuracy angle displacement measurement, can adopt double-sensor or more, it must be oppositely arranged on the fixing frame when adopting the double-sensor device, can improve measuring accuracy.
As shown in Figure 2, be the sectional view of second kind of mode of execution, it belongs to the structure of outer sensor, when having spatial constraints on the equipment, can adopt this kind structure, installs more flexible.
Magnetic railings ruler described in the utility model, its matrix are the steel fixed bed, can select stainless steel belt for use, apply the magnetic material layer of one deck above the steel substrate at it, at its outermost surface one deck clad stainless steel cover fillet that also bonds, thereby magnetic surface are protected.The steel substrate of magnetic railings ruler can cooperate installation with the moving-coil external diameter surface of bearing, constitutes the outer sensor structure this moment; When the steel substrate of magnetic railings ruler directly cooperates installation with the moving-coil inside diameter surface of bearing, constitute the built-in sensors structure, can on steel substrate, be coated with the direct and bearing matching surface strong bond of one deck high strength gelatinous layer during installation, guarantee that permanent use does not break away from.
Magnetic railings ruler described in the utility model, magnetic material layer on it has the magnetized surface that N, the S utmost point replace, and the N on it, S extremely equidistantly distribute, and the quantity of pole pair is set according to the control accuracy of equipment needs, precision prescribed is high more, and the quantity that pole pair is set should be many more.
The utility model, the gap between described sensor and the magnetic railings ruler are 0.1mm-1mm, and equipment requires the precision of angle displacement measurement high more, and its gap should be more little.The difference of the variation of precision and workplace as requested, the gap can also be amplified, and maximum can arrive 10mm.
The utility model, described sensor comprise a highly integrated Hall chip and a shell, and described Hall chip encapsulation is integrated with Hall element and signal processing circuit in the enclosure in this Hall chip.Described shell can adopt PVC material or zine pressure casting, and protection class is up to IP67, and anti-interference grade meets 3 grades of IEC801 international standards.Signal processing circuit mainly is made of differentiator and integration circuit, in the rotary course, the Hall element induced flux changes and the generation voltage signal, voltage signal is transferred to signal processing circuit, according to magnetic pole logarithm set on the whole magnetic railings ruler, is calculated to be the digital signal that has angular displacement through signal processing circuit and feeds back to CNC, CNC just can learn the departure of its angular displacement, revise, readjust device parameter, thereby reached the purpose of accurate angle displacement measurement, control.
Owing on the whole ring-type magnetic railings ruler a plurality of pole pairs are set evenly, the quantity that pole pair is set is determined according to desired precision, when the equipment precision prescribed is high more, should need the pole pair of setting close more, the Hall element induced flux changes and the generation voltage signal, according to magnetic pole logarithm set on the whole magnetic railings ruler, each signal can be converted into a definite angular displacement, with the rudimentary horn position is reference point, can be in signal processing circuit the angled increment of cumulative calculation, feed back to control system thereafter.
The utility model, its working principle is: worktable is in rotary course, the bearing moving-coil is rotation synchronously simultaneously, therefore the magnetic railings ruler on it produces the magnetic line of force, and the Hall element induced flux changes the generation voltage signal, and voltage signal is transferred to signal processing circuit, be angular displacement signal by conversion within it and add up, then input to control system, thereby be convenient to control system identification reduction value and adjust parameter, reach the purpose of accurate controlled angle displacement.
Sensor described in the utility model can be provided with in pairs, be oppositely arranged on the circumference of bearing, prevent to have influence on measurement result, therefore adopt the relative installation of two or more sensors can effectively improve measuring accuracy because operating force makes the bearing race system produce amount of deflection.
The utility model is overall construction design with cylindrical roller combination bearing and measuring system, can be widely used in the numerical control machine tool that has a large capacity and a wide range, also can be applied to other machinery or the apparatus that need accurate angle displacement control and measure, as numerical control machine tool and numerical control machining center turntable, tank turret, radar rotating platform, operation rotating platform, field of electronic components welding turntable etc.
The utility model adopts contactless magnetic sensor, has environmental requirement not high (dust, iron filings and humidity all require insensitive), the non-contacting magnetic mode (more than the 0.1～1mm of gap) of reading have been guaranteed the long lifetime that it is never wornout; Gather magnetic signal (resolution is the highest can to reach 0.001mm) by high resolution sensor in addition, and after inter-process converts digital signal to input control system, thereby realize accurate control to rotary table angular displacement precision, its angular displacement precision can reach ± and 3 "; along with the increase that the magnetic pole logarithm is set on the magnetic railings ruler, precision even can reach ± 1.5 " more than.
Claims (6)
1. the roller bearing unit that is used for testing and controlling angular displacement, form by moving-coil (1), Jing Quan (2), axial roller (3), radial roller (4), magnetic railings ruler (5), sensor (6) and fixing frame (7), it is characterized in that: one week of inwall of fixing frame (7) moving circle (1) is arranged on the Jing Quan (2), on the inwall of moving-coil (1), be provided with magnetic railings ruler (5), being relatively fixed with magnetic railings ruler (5) is provided with a sensor (6) on the frame (7) at least, and the gap between sensor (6) and the magnetic railings ruler (5) is 0.1mm-1mm.
2. the roller bearing unit that is used for testing and controlling angular displacement as claimed in claim 1 is characterized in that: described axial roller (3) and radial roller (4) are cylindrical roller.
3. the roller bearing unit that is used for testing and controlling angular displacement as claimed in claim 1, it is characterized in that: described magnetic railings ruler (5), it has three-decker, its internal layer is the steel fixed bed, the mesosphere is a magnetic material layer, skin is a metal cladding, and described steel fixed bed matches with moving-coil (1) inner wall surface of bearing.
4. the roller bearing unit that is used for testing and controlling angular displacement as claimed in claim 3 is characterized in that: described magnetic material layer has the magnetized surface that N, the S utmost point are arranged alternately.
5. the roller bearing unit that is used for testing and controlling angular displacement as claimed in claim 1 is characterized in that: described sensor (6), its signal output part connects with control system.
6. the roller bearing unit that is used for testing and controlling angular displacement as claimed in claim 1, it is characterized in that: described sensor (6) comprises an integrated Hall chip and a shell, described Hall chip encapsulation is integrated with Hall element and signal processing circuit in the enclosure in this Hall chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201686256U CN201747773U (en) | 2010-03-12 | 2010-03-12 | Cylinder roller bearing unit for angle placement measurement and control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201686256U CN201747773U (en) | 2010-03-12 | 2010-03-12 | Cylinder roller bearing unit for angle placement measurement and control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747773U true CN201747773U (en) | 2011-02-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201686256U Expired - Fee Related CN201747773U (en) | 2010-03-12 | 2010-03-12 | Cylinder roller bearing unit for angle placement measurement and control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747773U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788093A (en) * | 2011-05-17 | 2012-11-21 | 大连光洋科技工程有限公司 | Rotary table bearing with angle measure system |
| CN103410873A (en) * | 2013-07-31 | 2013-11-27 | 如皋市非标轴承有限公司 | Built-in engineering machinery slewing bearing structure |
| CN103495861A (en) * | 2013-10-21 | 2014-01-08 | 成都凯恩机电设备有限公司 | Bolt fastening system and achieving method thereof |
| CN103671581A (en) * | 2013-12-18 | 2014-03-26 | 大连理工大学 | Main bearing component with embedded sensors of full face rock heading machine |
| CN103930683A (en) * | 2011-09-07 | 2014-07-16 | 舍弗勒技术有限两合公司 | Rolling bearing |
| CN104457428A (en) * | 2013-09-25 | 2015-03-25 | 中国兵器工业第二0二研究所 | Tank gun steering wheel and muzzle displacement angle deviation testing device |
-
2010
- 2010-03-12 CN CN2010201686256U patent/CN201747773U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788093A (en) * | 2011-05-17 | 2012-11-21 | 大连光洋科技工程有限公司 | Rotary table bearing with angle measure system |
| CN102788093B (en) * | 2011-05-17 | 2016-06-01 | 科德数控股份有限公司 | Turntable bearing with angle measurement system |
| CN103930683A (en) * | 2011-09-07 | 2014-07-16 | 舍弗勒技术有限两合公司 | Rolling bearing |
| CN103930683B (en) * | 2011-09-07 | 2017-04-12 | 舍弗勒技术股份两合公司 | Rolling bearing |
| CN103410873A (en) * | 2013-07-31 | 2013-11-27 | 如皋市非标轴承有限公司 | Built-in engineering machinery slewing bearing structure |
| CN103410873B (en) * | 2013-07-31 | 2015-09-02 | 如皋市非标轴承有限公司 | A kind of built-in engineering machinery pivoting support structure |
| CN104457428A (en) * | 2013-09-25 | 2015-03-25 | 中国兵器工业第二0二研究所 | Tank gun steering wheel and muzzle displacement angle deviation testing device |
| CN104457428B (en) * | 2013-09-25 | 2016-09-21 | 中国兵器工业第二0二研究所 | Tank gun steering wheel and gun muzzle angle of displacement test bias device |
| CN103495861A (en) * | 2013-10-21 | 2014-01-08 | 成都凯恩机电设备有限公司 | Bolt fastening system and achieving method thereof |
| CN103495861B (en) * | 2013-10-21 | 2016-01-27 | 成都凯恩机电设备有限公司 | The implementation method of bolt fastening system |
| CN103671581A (en) * | 2013-12-18 | 2014-03-26 | 大连理工大学 | Main bearing component with embedded sensors of full face rock heading machine |
| CN103671581B (en) * | 2013-12-18 | 2016-01-13 | 大连理工大学 | The main bearing assembly of full face rock tunnel boring machine band embedded type sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20180312 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |