CN201963752U - Turntable bearing with measurement and control functions - Google Patents
Turntable bearing with measurement and control functions Download PDFInfo
- Publication number
- CN201963752U CN201963752U CN2011200833430U CN201120083343U CN201963752U CN 201963752 U CN201963752 U CN 201963752U CN 2011200833430 U CN2011200833430 U CN 2011200833430U CN 201120083343 U CN201120083343 U CN 201120083343U CN 201963752 U CN201963752 U CN 201963752U
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- China
- Prior art keywords
- turntable bearing
- detection element
- inner ring
- detecting element
- outer ring
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Abstract
The utility model discloses a turntable bearing with measurement and control functions, which mainly consists of a detection element (1), an outer ring (2), a rolling body (3), an inner ring (4), a plug (5) and a retainer/isolation block (6). The outer ring or the inner ring is provided with the detection element. The outer peripheral surface relative to the detection element is provided with at least more than one sensor. The sensors are connected with a control unit through data lines. In the utility model, the detection element is arranged on the turntable bearing and the detection element is cooperatively used with the sensors, so that a rotation angle (or radian) of a rotary device is detected in real time, simultaneously an angular position at which the rotary device is positioned is displayed on a corresponding display, a detected signal is transferred to a control system by the sensors, a feedback value is compared with a set value by the control system, and a generated deviation value is compensated by a driving unit. Therefore, the high-accuracy measurement and control on the rotary device are realized. The turntable bearing has the characteristics of compact structure, small occupied space, flexibility and high accuracy, is convenient to use and is stable to operate.
Description
Technical field
The utility model belongs to technical field of bearings, and what relate generally to is a kind of turntable bearing with observing and controlling.
Technical background
At present, the turntable bearing that is applied to traverse platform mainly contains four point touching ball slewing bearing, the three-row cylinder roller turntable bearing, crossing cylinder roller turntable bearing, these bearings are mainly by outer ring 2, rolling element 3, inner ring 4, stopper 5 and retainer 6 are formed, because this bearing does not possess the observing and controlling function, for the field of employment that needs precision rotating control, just require a cover can monitor the orientation of rotation or the control system of radian at any time, otherwise, can not satisfy the requirement of the rotation angle (or radian) of accurate observing and controlling field of employment, can not know the position, angle at revolution place in real time, cause the product that processes overproof, can not satisfy required precision.The measure of taking at present is to lean on the velocity ratio of turbine and worm to calculate a numerical value, and by the control of actuating motor rotation angle, this mode belongs to half-closed loop control, exists precision not high, the drawback that error is big.
Summary of the invention
The purpose of this utility model provides a kind of turntable bearing with observing and controlling, by real-time detection to the turntable bearing rotational position, know the position, angle at revolution place in real time, form closed loop system, control rotating angle of swing (or arc length), satisfy rotating highi degree of accuracy TT﹠C requirement.
The utility model realizes that the technological scheme that above-mentioned purpose is taked is: on the outer ring of the turntable bearing that mainly is made of outer ring, rolling element, inner ring, stopper and retainer or inner ring Detecting element is set, at least be provided with one with upper sensor near the outer peripheral surface of Detecting element relatively, this sensor is connected with control unit by datawire.
The utility model is by being provided with Detecting element on turntable bearing, by being used of Detecting element and inductor, the time the real rotating angle of swing (or radian) that detects, on corresponding display device, demonstrate the position, angle at revolution place simultaneously, by inductor the signal that detects is delivered to control system, after control system compares by value of feedback and setting value, the departure that produces is compensated by driver element.Thus, realize rotating highi degree of accuracy observing and controlling.Have compact structure, it is little to take up room, easy-to-use, and running steadily, and is flexible, the characteristics that precision is high.Because Detecting element is steel grid chi structure, therefore working environment is required lower, can be at the immersion oil environment, the grease environment, proper functioning under the working conditions such as main frame vibration environment has remedied the deficiency of magnetic grid working environment.
Description of drawings
Fig. 1 is positioned at the structural representation of bearing outer ring for the utility model Detecting element.
Fig. 2 is positioned at the structural representation of bearing inner race for the utility model Detecting element.
Among the figure: 1, Detecting element; 2, outer ring; 3, rolling element; 4, inner ring; 5, stopper; 6, retainer/spacing block.
Embodiment
In conjunction with the accompanying drawings, it is as follows to provide embodiment of the present utility model:
As Fig. 1 in conjunction with shown in Figure 2: a kind of turntable bearing with observing and controlling mainly is made up of inner ring 4, rolling element 3, outer ring 2, stopper 5, retainer/spacing block 6 and Detecting element 1, inner ring 4 is enclosed within 2 the insides, outer ring, rolling element 3 is contained in the ball pocket of retainer (or and spacing block place at interval), rolling element and retainer (or spacing block at interval) are contained in the raceway the inside between inner ring and the outer ring together, and stopper 5 is installed in plug hole the inside, outer ring (or inner ring).Detecting element 1 is arranged on outer ring 2 or inner ring 4, and this mainly is to determine that according to the function of use of turntable bearing when outer ring 2 was moving-coil, Detecting element 1 just was arranged on the outer ring 2; When inner ring 4 was moving-coil, Detecting element 1 just was arranged on the inner ring 4.Detecting element is a ring structure, can be the magnetic railings ruler ring, also can be steel grid chi ring, can also be grating chi ring.Preferably adopt steel material to make, be carved with small grid above, be steel grid chi ring structure.Lower to the working environment requirement, can be at the immersion oil environment, grease environment, proper functioning under the environment such as main frame vibration environment.Detecting element can be sleeved on outer ring 2 or inner ring 4, also can be divided into several sections installations.At least be provided with one during use near the outer peripheral surface of relative Detecting element 1 with upper sensor, be fixedly supported on apart from Detecting element 1 by fixing frame and be the position of 0.1mm～0.2mm, be connected with control unit by datawire.Under the drive of power-transmitting unit, this Detecting element and turntable bearing rotate synchronously, combined sensor sends the signal that detects to signal and receives control unit, and on corresponding display device, demonstrate the angle (or radian) that current turntable forwards to, by control unit traverse platform is controlled, giving needs the turntable of accurate observing and controlling rotation angle that advanced technical specifications are provided.
Claims (3)
1. turntable bearing with observing and controlling, comprise inner ring (4), rolling element (3), outer ring (2), stopper (5), retainer/spacing block (6), it is characterized in that: described outer ring (2) or inner ring (4) are provided with Detecting element (1), the outer peripheral surface of Detecting element (1) is provided with one at least with upper sensor relatively, and this sensor is connected with control unit by datawire.
2. the turntable bearing of band observing and controlling according to claim 1 is characterized in that: described Detecting element (1) adopts steel material to make, and is carved with small grid above, is steel grid chi ring structure.
3. the turntable bearing of band observing and controlling according to claim 1 and 2 is characterized in that: described Detecting element (1) is sleeved on outer ring (2) or the inner ring (4), also can be divided into several sections installations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200833430U CN201963752U (en) | 2011-03-27 | 2011-03-27 | Turntable bearing with measurement and control functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200833430U CN201963752U (en) | 2011-03-27 | 2011-03-27 | Turntable bearing with measurement and control functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963752U true CN201963752U (en) | 2011-09-07 |
Family
ID=44526288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200833430U Expired - Fee Related CN201963752U (en) | 2011-03-27 | 2011-03-27 | Turntable bearing with measurement and control functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110580058A (en) * | 2019-08-28 | 2019-12-17 | 北京无线电计量测试研究所 | Rotary motion position feedback device and feedback method |
-
2011
- 2011-03-27 CN CN2011200833430U patent/CN201963752U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110580058A (en) * | 2019-08-28 | 2019-12-17 | 北京无线电计量测试研究所 | Rotary motion position feedback device and feedback method |
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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: 20110907 Termination date: 20180327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |