CN201689105U - Rotation speed sensor - Google Patents
Rotation speed sensor Download PDFInfo
- Publication number
- CN201689105U CN201689105U CN2010202172086U CN201020217208U CN201689105U CN 201689105 U CN201689105 U CN 201689105U CN 2010202172086 U CN2010202172086 U CN 2010202172086U CN 201020217208 U CN201020217208 U CN 201020217208U CN 201689105 U CN201689105 U CN 201689105U
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- CN
- China
- Prior art keywords
- centrifugal
- centrifugal force
- housing
- rotation speed
- piezoelectric crystal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a rotation speed sensor, which structurally comprises a casing, wherein a strong magnet is arranged at the bottom end of the casing, two centrifugal-force sensors are oppositely arranged on side walls in the casing, and each centrifugal-force sensor comprises insulating centrifugal press plates and a piezoelectric crystal which is arranged between the insulating centrifugal press plates and connected with a signal output line. The rotation speed sensor utilizes the piezoelectric crystals to determine centrifugal force to acquire rotation speed data of machines accurately and fast, is simple in structure, low in manufacturing cost, convenient in maintenance and is convenient and practical.
Description
Technical field
The utility model relates to a kind of speed probe, especially a kind of simple in structure, cheap, convenient and practical, measure the speed probe that centrifugal force obtains rotary speed data by piezoelectric crystal.
Background technology
At present, have the multiple speed probe that is used to measure machine rotational speed on technical literature and the market, but they exist all that complex structure, cost are high, complex operation, be easy to damage and be difficult to shortcoming such as maintenance; For this reason, people's a kind of appearance of speed probe of more convenient practicality that all waits in expectation.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of speed probe, measures centrifugal force and accurately obtains the rotary speed data of machine efficiently by piezoelectric crystal, and it is simple in structure, cheap, convenient and practical, be convenient to maintenance.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of speed probe, comprise housing in the structure, the enclosure interior sidewall is oppositely arranged two centrifugal force sensor, this centrifugal force sensor comprise the centrifugal compressing tablet of insulation and be sandwiched in housing sidewall with the centrifugal compressing tablet that insulate between piezoelectric crystal, connect output line on this piezoelectric crystal.
In the utility model, described housing bottom is provided with a strong magnets.
In the utility model, an insulation spacer is set between described housing sidewall and the piezoelectric crystal.
In the utility model, described two centrifugal force sensor can be fixed on the housing sidewall by the stage clip that is arranged between it.
In the utility model, described two centrifugal force sensor can also be coated and fixed on housing sidewall by the clad that is arranged at its outside.
Adopt the beneficial effect that technique scheme produced to be: principle of work of the present utility model is to be electrical signal by piezoelectric crystal with the centrifugal force conversion of signals, thereby obtain machine rotational speed information, more traditional speed probe structure is greatly simplified, and cost is also very cheap; The electric signal of piezoelectric crystal output links to each other with computer, by auxiliary Control Software, can realize the robotization of tachometry and control; The utility model is fixed on the rotary shaft of machine by strong magnets absorption, flexibly connects maneuverability; In addition, the utility model repairs also very simple after damaging.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of a specific embodiment of the utility model;
Fig. 2 is the structural representation of another specific embodiment of the utility model.
Embodiment
Referring to accompanying drawing 1, comprise housing 1 in the structure of a specific embodiment of the utility model, housing 1 bottom is provided with a strong magnets 2, housing 1 internal side wall is oppositely arranged two centrifugal force sensor, this centrifugal force sensor comprise the centrifugal compressing tablet 3 of insulation and be sandwiched in housing sidewall with the centrifugal compressing tablet 3 that insulate between piezoelectric crystal 4, one insulation spacer 6 also is set between housing sidewall and the piezoelectric crystal 4, connects output line 5 on the piezoelectric crystal 4; Stage clip 7 is set between two centrifugal force sensor, and the original pressure that is applied on the centrifugal force sensing by stage clip 7 is fixed on the housing sidewall.
Referring to accompanying drawing 2, the difference of another specific embodiment of the utility model and a last embodiment is: its centrifugal force sensor is coated and fixed on housing sidewall by the clad 8 that is arranged at its outside.
Principle of work of the present utility model is: the strong magnets 2 by housing 1 bottom is fixed to this speed probe absorption on the rotary shaft of machine, output line 5 on the other end piezoelectric crystal 4 links to each other with microcomputer, by computer-aided control software, can realize mensuration and control automatically to machine rotational speed, accurately quick; Maneuverability can also this speed probe be taken off again after measuring end from rotary shaft of machine.
Claims (5)
1. speed probe, comprise housing (1) in the structure, it is characterized in that: housing (1) internal side wall is oppositely arranged two centrifugal force sensor, this centrifugal force sensor comprise insulation centrifugal compressing tablet (3) and be sandwiched in housing sidewall with insulation centrifugal compressing tablet (3) between piezoelectric crystal (4), connection output line (5) on this piezoelectric crystal (4).
2. speed probe according to claim 1 is characterized in that: described housing (1) bottom is provided with a strong magnets (2).
3. speed probe according to claim 1 is characterized in that: an insulation spacer (6) is set between described housing sidewall and the piezoelectric crystal (4).
4. according to claim 1 or 2 or 3 described speed probes, it is characterized in that: described two centrifugal force sensor are fixed on the housing sidewall by the stage clip (7) that is arranged between it.
5. according to claim 1 or 2 or 3 described speed probes, it is characterized in that: described two centrifugal force sensor are coated and fixed on housing sidewall by the clad (8) that is arranged at its outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202172086U CN201689105U (en) | 2010-06-07 | 2010-06-07 | Rotation speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202172086U CN201689105U (en) | 2010-06-07 | 2010-06-07 | Rotation speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689105U true CN201689105U (en) | 2010-12-29 |
Family
ID=43377385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202172086U Expired - Fee Related CN201689105U (en) | 2010-06-07 | 2010-06-07 | Rotation speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226548A (en) * | 2016-08-05 | 2016-12-14 | 安庆庆荣企业管理咨询有限责任公司 | The device of horizontal low speed rotation rotating speed is measured based on cloud computing |
| CN108343422A (en) * | 2018-01-16 | 2018-07-31 | 中国地质大学（武汉） | A kind of downhole motor machine speed probe |
-
2010
- 2010-06-07 CN CN2010202172086U patent/CN201689105U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226548A (en) * | 2016-08-05 | 2016-12-14 | 安庆庆荣企业管理咨询有限责任公司 | The device of horizontal low speed rotation rotating speed is measured based on cloud computing |
| CN108343422A (en) * | 2018-01-16 | 2018-07-31 | 中国地质大学（武汉） | A kind of downhole motor machine speed probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20110607 |