CN214470597U - Rotating shaft measuring device - Google Patents
Rotating shaft measuring device Download PDFInfo
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- CN214470597U CN214470597U CN202023155802.XU CN202023155802U CN214470597U CN 214470597 U CN214470597 U CN 214470597U CN 202023155802 U CN202023155802 U CN 202023155802U CN 214470597 U CN214470597 U CN 214470597U
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Abstract
The utility model discloses a rotating shaft measuring device, which comprises a permanent magnet, a Hall sensing component, a circuit module, a rotating body, a compression screw, a transmission component and an indicating component; a plurality of compression screws and transmission assemblies are distributed on the circumferential side wall of the rotating body at equal angles, and when the compression screws rotate, the compression screws move along the radial direction of the rotating body to drive the transmission assemblies to rotate so as to drive the movable piece to rotate, so that the rotating body is fixedly matched and centered with the rotating shaft to be measured; when the rotator rotates, a plurality of Hall elements uniformly arranged along the circumferential direction on the chassis acquire Hall voltages, and parameters such as the angular position, the angular displacement, the rotating speed, the rotating direction and the like of the measured rotating shaft are obtained through calculation and analysis of the circuit module. The utility model has the advantages that: the device has the advantages of scientific design, simple structure and convenience in installation, is suitable for various application occasions, increases the state measurement function of the rotating shaft in an externally-installed mode, is convenient to transform and upgrade the existing rotating machinery, and realizes real-time monitoring and instant adjustment.
Description
Technical Field
The utility model relates to a rotating machinery's measurement technical field, specifically speaking relates to an external angular position, angle displacement, rotational speed and the direction of rotation's that is used for measuring the rotation axis device.
Background
In the field of rotating machinery, the angular position, angular displacement, rotating speed, rotating direction and the like of a rotating shaft of the rotating machinery are often required to be measured so as to obtain the running condition of the rotating shaft, the dynamic performance of the rotating machinery can be monitored in real time according to the obtained parameters, a sudden stop signal of the rotating shaft can also be obtained in real time, and a linkage mechanism of the rotating machinery can be responded immediately, so that the purposes of diagnosing the performance of the rotating machinery, eliminating potential safety hazards and performing real-time linkage control are achieved. For example, in the field of vehicle traffic, the angle position of a rotating shaft of a vehicle steering wheel is measured, and the irradiation direction of a vehicle lamp can be adjusted in real time or the driving condition can be prompted in real time. When the existing measurement technical scheme is used for dealing with a plurality of measurement points, the diameters of the rotating shafts are different in size, working conditions are different, and spaces are different, the sensor clamp with a specific structure needs to be designed and processed, the cost is very high, and certain assembled products cannot be completed through a simple implementation method. At present, no universal measuring device can meet the requirements of various working conditions.
SUMMERY OF THE UTILITY MODEL
The utility model discloses just be a rotation axis measuring device who designs in order to solve above-mentioned technical problem.
The utility model provides a technical scheme that its technical problem adopted is:
a rotating shaft measuring device comprises a permanent magnet, a Hall sensing assembly, a lead and a circuit module, wherein the Hall sensing assembly is electrically connected with the circuit module through the lead; the device also comprises a rotating body, a chassis, at least one compression screw, at least one transmission part and at least one group of indicating components;
the rotating body is provided with a cavity penetrating through the height direction of the rotating body and can be sleeved into a rotating shaft to be measured;
a cavity is arranged on the circumferential side wall of the rotating body, and the permanent magnet is fixedly arranged in the cavity;
the chassis is provided with a cavity penetrating through the height direction of the chassis and can be sleeved with a measured rotating shaft;
the chassis is movably assembled with the rotating body, and the chassis and the rotating body can perform relative rotation movement after assembly;
the Hall sensing assembly is fixedly arranged on the chassis;
each compression screw is arranged on the circumferential side wall of the rotating body and is respectively in threaded connection with the rotating body, and each compression screw can move along the radial direction of the rotating body when rotating;
each transmission piece is arranged on the circumferential side wall of the rotating body, is meshed with the thread of the compression screw and is driven by the compression screw to rotate;
each indicating assembly comprises a movable part and a static part, wherein the movable part is fixedly arranged at one end of the transmission part and rotates coaxially with the transmission part.
The rotating shaft measuring device further comprises a rolling bearing, an outer ring of the rolling bearing is fixedly connected with the rotating body, an inner ring of the rolling bearing is fixedly connected with the chassis, and the chassis keeps relatively static when the rotating body rotates.
The rotating shaft measuring device further comprises a supporting rod and a supporting seat, wherein one end of the supporting rod is hinged with the base plate and can be locked through a screw; the other end of the supporting rod is hinged with the supporting seat and can be locked by a screw; through changing the relative position of bracing piece, supporting seat and/or chassis three, applicable in multiple application.
The rotating shaft measuring device further comprises a cover plate, the cover plate is of a hollow structure, a measured rotating shaft can penetrate through the hollow space of the cover plate, the cover plate is fixed on the rotating body through screws, through holes are formed in the cover plate, the number of the through holes is equal to that of the indicating assemblies, and when the cover plate is fixed on the rotating body, the movable members of the indicating assemblies can be seen through the through holes.
According to the rotating shaft measuring device, the Hall sensing assembly comprises a plurality of Hall elements, the Hall elements are uniformly distributed on the circumferential side wall of the chassis, and when the permanent magnet rotates along with the rotating body, the magnetic field of the permanent magnet can be sensed by all the Hall elements. The Hall sensor is a magnetic induction element and can sense the strength of a magnetic field of the permanent magnet, the farther the Hall sensing element is away from the permanent magnet, the weaker the benefit of the received magnetic field is, and conversely, the closer the Hall sensing element is, the stronger the magnetic field is.
In the rotating shaft measuring device, the movable part of the indicating component is a dial which is fixedly arranged at one end of the transmission part and can coaxially rotate along with the transmission part; the static part of the indicating component is an indicating icon and is arranged at the edge of the through hole; the indicating component is used for reflecting the displacement of the radial movement of the compression screw or indicating the diameter of the measured rotating shaft.
In the rotating shaft measuring device, the movable part of the indicating component is a pointer which is fixedly arranged at one end of the transmission part and can coaxially rotate along with the transmission part; the static part of the indicating component is a dial gauge and is arranged on the circumferential edge of the through hole, and the indicating component is used for reflecting the displacement size of the radial movement of the compression screw or indicating the diameter of the measured rotating shaft.
The rotating shaft measuring device comprises a plurality of compression screws which are arranged on the circumferential side wall of the rotating body at equal intervals; the rotating shaft measuring device comprises a plurality of transmission parts, the number of the transmission parts is equal to that of the pressing screws, the transmission parts are arranged on the axial side wall of the rotating body at equal intervals, and spiral transmission is realized through threads and the corresponding pressing screws; the rotating shaft measuring device comprises a plurality of indicating components, and the number of the indicating components is equal to that of the plurality of transmission members; and rotating the compression screws until all the compression screws are simultaneously contacted with the measured rotating shaft, and enabling all the indicating assemblies to display the same scale, so that the rotating body and the measured rotating shaft are centered and realize interference connection, and coaxial rotation is realized.
The rotating shaft measuring device comprises a circuit module, a signal amplifying circuit, an AD conversion circuit, a voltage comparison circuit and a microprocessor, the rotating body drives the permanent magnet to rotate when rotating coaxially along with the rotating shaft to be measured, the permanent magnet sequentially passes through the Hall elements on the chassis, Hall voltages sensed by the Hall elements are respectively transmitted to the circuit module through the leads, the sampled Hall voltages are amplified by the signal amplifying circuit, voltage analog signals are converted into digital signals by the AD conversion circuit and are processed by the voltage comparator, and then the microprocessor calculates the digital signals, parameters including the rotation angle position, angular displacement, rotation speed and rotation direction of the measured rotating shaft can be obtained, and these parameters can be used for display output or for control of other devices by means of the control unit using information on these parameters.
The utility model has the advantages that: the device has the advantages of scientific design, simple structure and convenience in installation, the state measuring function of the rotating shaft is increased through an external installation mode, the existing mechanical rotating device is conveniently transformed and upgraded, and automatic measurement and control of the rotating machine are realized.
Drawings
Fig. 1 is a schematic diagram of the explosion structure of the present invention;
FIG. 2 is a schematic structural view of a cover plate of the present invention;
FIG. 3 is a schematic structural view of a component transmission member according to the present invention;
fig. 4 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1 and 4, the utility model relates to a rotating shaft measuring device, which comprises a permanent magnet 7, a hall sensing component, a lead and a circuit module, wherein the hall sensing component and the circuit module are electrically connected through the lead; the device also comprises a rotating body 1, a chassis 2, at least one compression screw, at least one transmission part and at least one group of indicating components;
the rotating body 1 is provided with a cavity penetrating through the height direction of the rotating body and can be sleeved with a rotating shaft to be measured;
a cavity is arranged on the circumferential side wall of the rotating body 1, and the permanent magnet 7 is fixedly arranged in the cavity;
the chassis 2 is provided with a cavity penetrating through the height direction of the chassis and can be sleeved with a measured rotating shaft;
the chassis 2 and the rotating body 1 are movably assembled, and the two can perform relative rotating motion after being assembled;
the Hall sensing assembly is fixedly arranged on the chassis 2;
each compression screw 4 is arranged on the circumferential side wall of the rotating body 1 and is respectively in threaded connection with the rotating body 1, and each compression screw 4 can move along the radial direction of the rotating body 1 when rotating;
each transmission piece 13 is arranged on the circumferential side wall of the rotating body 1, is meshed with the thread of the compression screw rod 4 and is driven by the compression screw rod 4 to rotate; as shown in fig. 3.
Each indicating component comprises a movable part and a static part, wherein the movable part is fixedly arranged at one end of the transmission part 13 and coaxially rotates along with the transmission part 13.
The rotating shaft measuring device further comprises a rolling bearing 10, an outer ring of the rolling bearing 10 is fixedly connected with the rotating body 1, an inner ring of the rolling bearing 10 is fixedly connected with the chassis 2, and when the rotating body 1 rotates, the chassis 2 keeps relatively static.
The rotating shaft measuring device further comprises a supporting rod 8 and a supporting seat 9, wherein one end of the supporting rod 8 is hinged with the base plate 2 and can be locked through a screw; the other end of the supporting rod 8 is hinged with the supporting seat 9 and can be locked by a screw; by changing the relative positions of the support rod 8, the support seat 9 and/or the chassis 2, the device is suitable for various application occasions.
As shown in fig. 2, the rotation axis measuring apparatus further includes a cover plate 11, the cover plate is a hollow structure, the rotation axis to be measured can pass through the hollow space of the cover plate, the cover plate is fixed on the rotating body 1 by screws, through holes 12 are provided on the cover plate 11, the number of the through holes 12 is equal to the number of the indicating components, and when the cover plate 11 is fixed on the rotating body 1, the movable components of the indicating components can be seen through the through holes 12.
According to the rotating shaft measuring device, the Hall sensing assembly comprises a plurality of Hall elements 3, the Hall elements 3 are uniformly distributed on the circumferential side wall of the chassis, and when the permanent magnet 7 rotates along with the rotating body 1, the magnetic field of the permanent magnet 7 can be sensed by all the Hall elements 3.
In the rotating shaft measuring device, the movable part of the indicating component is a dial 5 and is fixedly arranged at one end of a transmission part 13, and the dial 5 can coaxially rotate along with the transmission part 13; the static part of the indicating component is an indicating icon 6 and is arranged at the edge of the through hole 12; the indicating component is used for reflecting the displacement size of the radial movement of the compression screw rod 4 or indicating the diameter of the measured rotating shaft.
In the rotating shaft measuring device, the movable part of the indicating component is a pointer which is fixedly arranged at one end of the transmission part and can coaxially rotate along with the transmission part 13; the static part of the indicating component is a scale and is arranged on the circumferential edge of the through hole 12, and the indicating component is used for reflecting the displacement size of the radial movement of the compression screw rod 4 or indicating the diameter of the measured rotating shaft.
The rotating shaft measuring device comprises a plurality of compression screws 4, wherein the compression screws 4 are arranged on the circumferential side wall of the rotating body 1 at equal intervals; the rotating shaft measuring device comprises a plurality of transmission parts 13, the number of the transmission parts is equal to that of the plurality of compression screws 4, the transmission parts are arranged on the axial side wall of the rotating body 1 at equal intervals, and the transmission parts are respectively in spiral transmission with the compression screws 4 corresponding to the transmission parts through threads; the rotating shaft measuring device comprises a plurality of indicating components, and the number of the indicating components is equal to that of the plurality of transmission pieces 13; and rotating the compression screws 4 until all the compression screws 4 are simultaneously contacted with the measured rotating shaft, and enabling all the indicating components to display the same scale, so that the rotating body 1 and the measured rotating shaft are centered and in interference connection, and coaxial rotation is realized.
The utility model provides a rotation axis measuring device, the circuit module contains signal amplification circuit, AD converting circuit, voltage comparison circuit and microprocessor, rotator 1 drives when taking place coaxial rotation along the rotation axis of measurand, permanent magnet 7 takes place to rotate, permanent magnet 7 passes through in proper order hall element 3 on the chassis, the hall voltage that a plurality of hall element 3 sensed passes through respectively wire conveying to the circuit module, the warp the hall voltage that signal amplification circuit will sample is enlargied, and through AD converting circuit with voltage analog signal conversion to digital signal to handle through the voltage comparator, calculate by microprocessor again, can obtain including the parameter of measurand rotation axis rotation angle position, angle displacement, rotational speed and direction of rotation.
The present invention is not limited to the above-mentioned best mode, and any other products similar or identical to the present invention, which can be obtained by anyone under the teaching of the present invention, all fall within the protection scope of the present invention.
Claims (9)
1. A rotating shaft measuring device comprises a permanent magnet (7), a Hall sensing assembly, a lead and a circuit module, wherein the Hall sensing assembly is electrically connected with the circuit module through the lead; the method is characterized in that: the measuring device further comprises a rotating body (1), a chassis (2), at least one compression screw, at least one transmission part and at least one group of indicating components;
the rotating body (1) is provided with a cavity penetrating through the height direction of the rotating body and can be sleeved with a rotating shaft to be measured;
a cavity is arranged on the circumferential side wall of the rotating body (1), and the permanent magnet (7) is fixedly arranged in the cavity;
the chassis (2) is provided with a cavity penetrating through the height direction of the chassis and can be sleeved with a measured rotating shaft;
the chassis (2) is movably assembled with the rotating body (1), and the chassis and the rotating body can perform relative rotating motion after being assembled;
the Hall sensing assembly is fixedly arranged on the chassis (2);
each compression screw (4) is arranged on the circumferential side wall of the rotating body (1) and is respectively in threaded connection with the rotating body (1), and each compression screw (4) can move along the radial direction of the rotating body (1) when rotating;
each transmission piece (13) is arranged on the circumferential side wall of the rotating body (1), is meshed with the thread of the compression screw (4), and is driven by the compression screw (4) to rotate;
each indicating component comprises a movable part and a static part, wherein the movable part is fixedly arranged at one end of the transmission part (13) and coaxially rotates along with the transmission part (13).
2. A rotating shaft measuring device according to claim 1, wherein: the measuring device further comprises a rolling bearing (10), the outer ring of the rolling bearing (10) is fixedly connected with the rotating body (1), the inner ring of the rolling bearing (10) is fixedly connected with the chassis (2), and when the rotating body (1) rotates, the chassis (2) keeps relatively static.
3. A rotating shaft measuring device according to claim 1, wherein: the measuring device also comprises a supporting rod (8) and a supporting seat (9), wherein one end of the supporting rod (8) is hinged with the chassis (2) and can be locked by a screw; the other end of the supporting rod (8) is hinged with the supporting seat (9) and can be locked by a screw; through changing the relative position of bracing piece (8), supporting seat (9) and/or chassis (2), applicable in multiple application.
4. A rotating shaft measuring device according to claim 1, wherein: the rotating shaft measuring device further comprises a cover plate (11), the cover plate is of a hollow structure, a measured rotating shaft can penetrate through the inner space of the cover plate, the cover plate is fixed on the rotating body (1) through screws, through holes (12) are formed in the cover plate (11), the number of the through holes (12) is equal to that of the indicating assemblies, and when the cover plate (11) is fixed on the rotating body (1), the movable members of the indicating assemblies can be seen through the through holes (12).
5. A rotating shaft measuring device according to claim 1, wherein: the Hall sensing assembly comprises a plurality of Hall elements (3), the Hall elements (3) are uniformly distributed on the circumferential side wall of the chassis, and when the permanent magnet (7) rotates along with the rotating body (1), the magnetic field of the permanent magnet (7) can be sensed by all the Hall elements (3).
6. A rotary shaft measuring device according to claim 4, wherein: the movable piece of the indicating assembly is a dial (5) and is fixedly arranged at one end of the transmission piece (13), and the dial (5) can coaxially rotate along with the transmission piece (13); the static part of the indicating component is an indicating icon (6) arranged at the edge of the through hole (12); the indicating component is used for reflecting the displacement size of the radial movement of the compression screw (4) or indicating the diameter of the measured rotating shaft.
7. A rotary shaft measuring device according to claim 4, wherein: the movable part of the indicating component is a pointer which is fixedly arranged at one end of the transmission part and can coaxially rotate along with the transmission part (13); the static part of the indicating component is a dial gauge and is arranged on the circumferential edge of the through hole (12), and the indicating component is used for reflecting the displacement size of the radial movement of the compression screw rod (4) or indicating the diameter of the measured rotating shaft.
8. A rotating shaft measuring device according to claim 1, wherein: the rotating shaft measuring device comprises a plurality of compression screws (4), and the compression screws (4) are arranged on the circumferential side wall of the rotating body (1) at intervals; the rotating shaft measuring device comprises a plurality of transmission parts (13), the number of the transmission parts is equal to that of the pressing screws (4), the transmission parts are arranged on the axial side wall of the rotating body (1) at equal intervals, and spiral transmission is realized through threads and the corresponding pressing screws (4); the rotating shaft measuring device comprises a plurality of indicating components, and the number of the indicating components is equal to that of the plurality of transmission pieces (13); and rotating the compression screws (4) until all the compression screws (4) are simultaneously contacted with the measured rotating shaft, and enabling all the indicating components to display the same scale, so that the rotating body (1) and the measured rotating shaft are centered and in interference connection, and coaxial rotation is realized.
9. A rotary shaft measuring device according to claim 5, wherein: the circuit module contains signal amplification circuit, AD converting circuit, voltage comparison circuit and microprocessor, rotator (1) drives when following the rotation axis of measurand and taking place coaxial rotation permanent magnet (7) take place the rotation, permanent magnet (7) pass through in proper order hall element (3) on the chassis, the hall voltage that a plurality of hall element (3) sensed passes through respectively wire conveying to circuit module, the warp the hall voltage amplification circuit, with sampling enlargies, processes voltage analog signal through AD converting circuit and converts digital signal into to handle through voltage comparator, calculate by microprocessor again, can obtain including measurand rotation axis rotation angle position, angle displacement, rotational speed and direction of rotation's parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023155802.XU CN214470597U (en) | 2020-12-24 | 2020-12-24 | Rotating shaft measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023155802.XU CN214470597U (en) | 2020-12-24 | 2020-12-24 | Rotating shaft measuring device |
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|---|---|
| CN214470597U true CN214470597U (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023155802.XU Active CN214470597U (en) | 2020-12-24 | 2020-12-24 | Rotating shaft measuring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577529A (en) * | 2020-12-24 | 2021-03-30 | 华能海南发电股份有限公司电力检修分公司 | Rotating shaft measuring device |
| WO2023197243A1 (en) * | 2022-04-14 | 2023-10-19 | 威刚科技股份有限公司 | Test device for rotary object |
-
2020
- 2020-12-24 CN CN202023155802.XU patent/CN214470597U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577529A (en) * | 2020-12-24 | 2021-03-30 | 华能海南发电股份有限公司电力检修分公司 | Rotating shaft measuring device |
| WO2023197243A1 (en) * | 2022-04-14 | 2023-10-19 | 威刚科技股份有限公司 | Test device for rotary object |
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