CN101256196A - Non-contact type revolution speed transducer - Google Patents
Non-contact type revolution speed transducer Download PDFInfo
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- CN101256196A CN101256196A CN 200810031034 CN200810031034A CN101256196A CN 101256196 A CN101256196 A CN 101256196A CN 200810031034 CN200810031034 CN 200810031034 CN 200810031034 A CN200810031034 A CN 200810031034A CN 101256196 A CN101256196 A CN 101256196A
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- contact type
- tongue tube
- sensor according
- type tachometric
- pressure hull
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Abstract
The invention discloses a non-contact type rotating speed sensor. The device is provided with a shell made of nonmagnetic material and having magnetic conductivity, a reed switch is sealed at the front end of the shell and is connected with a sensor signal output cable through a reed switch connecting wire, and 1-N permanent magnets for controlling the on-off of a reed switch circuit are fixed on the surface of a rotating shaft of the electromechanical device to be measured. The invention has simple and reliable structure and low cost, does not influence the movement of the rotating shaft to be measured, can measure the rotating speed of various rotating parts of the electromechanical equipment, and can be particularly used in the deep sea environment for measuring the rotating speed of the rotating parts of the deep sea electromechanical equipment.
Description
Technical field
The present invention relates to a kind of non-contact type tachometric sensor of measuring various electromechanical equipment rotatable parts rotating speeds, especially be fit to measure the non-contact type tachometric sensor of deep-sea electromechanical equipment rotatable parts rotating speed.
Background technology
More existing speed probes in prior art, as 200310108098.4 disclosed a kind of nanometer magnetosensitive speed probes, it is mainly used in wheel machinery and equipment, motor, especially automotive wheel revolution speed sensing and detection.These speed probes can only be applicable to land; and can not in the environment of deep-sea high pressure high conductivity seawater, directly use; and the structure that has is complicated; cost is higher; and various deep-seas electromechanical equipment often needs to adopt speed probe to measure the rotating speed of rotational components as Underwater Engineering equipment, submarine, underwater sampling device, underwater operation station etc.In prior art, also do not have both rotating speeds of the various electromechanical equipment rotatable parts of energy measurement, especially be fit to the report of the non-contact type tachometric sensor of measurement deep-sea electromechanical equipment rotatable parts rotating speed.
Summary of the invention
The object of the present invention is to provide another kind of non-contact type tachometric sensor.Make its both rotating speed of the various electromechanical equipment rotatable parts of energy measurement, especially be fit to measure the rotating speed of deep-sea electromechanical equipment rotatable parts.
Technical scheme of the present invention is: be provided with a nonmagnetic substance housing with magnetic conductivity, be packaged with a tongue tube at the housing front end, tongue tube is connected with the sensor signal output cable by the tongue tube connecting line, is fixed with the permanent magnet of 1-N control reed switch circuit break-make on the rotation axis surface of measured electromechanical equipment.
Be provided with signal pre-processing circuit between described tongue tube connecting line and the sensor signal output cable, after the switching signal pre-service with tongue tube, direct again outputting standard analog or digital signal.Described signal pre-processing circuit is a prior art.
Described tongue tube connecting line is connected with the deep-sea watertight socket of band O-ring seal, has the deep-sea watertight plug that adapts with the deep-sea watertight socket on the described sensor signal output cable.Described deep-sea watertight socket and deep-sea watertight plug all are the prior arts in the electromechanical equipment of existing deep-sea.
Described housing be for can bearing the pressure hull of seawater pressure, and pressure hull is assembled by two or two above parts, and part of front end is the withstand voltage dry spring canister of encapsulation tongue tube, and each part junction is provided with O-ring seal.
Described pressure hull shell wall thickness is 1-10mm, the size of main and pressure hull sea water advanced different and different according to difference, when guaranteeing that external magnet is close, its magnetic field energy sees through pressure hull and acts on the magnetic dry-reed pipe, can resist the pressure of outside seawater again.
Described nonmagnetic substance with magnetic conductivity is metal or its alloy or nonmetallic materials such as stainless steel, titanium, copper, aluminium, magnesium.
Advantage of the present invention: simple and reliable for structure, with low cost; do not influence the motion of measured rotation axis, both rotating speeds of the various electromechanical equipment rotatable parts of energy measurement; especially can under deep-marine-environment, use, be used to measure the rotating speed of deep-sea electromechanical equipment rotatable parts.
Description of drawings
Fig. 1 is embodiment 1 structural representation;
Fig. 2 is embodiment 2 structural representations;
Fig. 3 is embodiment 3 structural representations.
Among the figure: 1 is measured rotation axis, and 2 is permanent magnet, and 3 is tongue tube, 4 is housing, and 5 is socket, and 6 is the tongue tube connecting line, 7 is O-ring seal, 8 is the sensor signal output cable, and 9 is switching frequency measuring system circuit, and 10 is signal pre-processing circuit, 11 is dry spring canister, 12 is magnetic receiver, and 13 is fixed support, and 14 is locknut
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Embodiment 1: the rotating speed that is used to measure common electromechanical equipment rotatable parts
In conjunction with the accompanying drawings 1:
On the circumferential surface of the rotation axis 1 same axial location of measured electromechanical equipment, evenly be fixed with 4 blocks of permanent magnets 2, tongue tube 3 is encapsulated in the front end that shell wall thickness is the rigid plastic housing 4 of 1mm, tongue tube is connected with socket 5 by tongue tube connecting line 6, socket 5 is connected with sensor signal output cable 8, and the sensor signal output cable is connected with switching frequency TT﹠C system circuit 9 in the prior art.Because when the rotation of measured turning axle 1 makes permanent magnet 2 near magnetic dry-reed pipe 3, magnetic dry-reed pipe 3 will be experienced the effect in magnetic field and closure; When permanent magnet left magnetic dry-reed pipe 3, the magnetic dry-reed pipe recovered open-circuit condition.By the switching frequency of circuit measuring magnetic dry-reed pipe, can obtain the rotating speed of measured turning axle.
Embodiment 2:
In conjunction with the accompanying drawings 2: as different from Example 1: tongue tube connecting line 6 is connected with socket 5 with after signal pre-processing circuit 10 in the prior art is connected again.
Embodiment 3: the rotating speed that is used for measuring the deep sea drill core sampling borer drill rod.
In conjunction with the accompanying drawings 3:
As different from Example 1: housing is made of several withstand voltage parts, encapsulation tongue tube 3 constitutes withstand voltage dry spring canister 11 in part of front end, withstand voltage dry spring canister is cylindrical, the cylindrical tail end of withstand voltage dry spring canister inserts in the hole of pressure hull 4 front portions, and by O-ring seal 7 sealings, withstand voltage dry spring canister 11 and pressure hull 4 are locked by locknut 14 again.Each part junction is provided with O-ring seal 7.Tongue tube connecting line 6 is connected with the deep-sea watertight socket 5 of band O-ring seal 7, has the weather proof receptacle that adapts with the deep-sea watertight socket on the sensor signal output cable 8.
Sensor is fixed on the frame of deep sea drill core sampling rig by support 13.On the circumferential surface of the drilling rod 1 same axial location of rig, four blocks of magnet 3 are fixed by magnetic receiver 12.When deep sea drill core sampling borer drill rod 1 rotation, at permanent magnet 2 during near magnetic dry-reed pipe 3, magnetic dry-reed pipe 3 will be experienced the effect in magnetic field and closure; When permanent magnet left magnetic dry-reed pipe 3, the magnetic dry-reed pipe recovered open-circuit condition.By the switching frequency of the 9 measurement tongue tubes of the switching frequency measuring system circuit in the prior art, can obtain the rotating speed of deep sea drill core sampling rig.
Claims (6)
1. non-contact type tachometric sensor, it is characterized in that, be provided with a nonmagnetic substance housing with magnetic conductivity, be packaged with a tongue tube at the housing front end, tongue tube is connected with the sensor signal output cable by the tongue tube connecting line, is fixed with the permanent magnet of 1-N control reed switch circuit break-make on measured electromechanical equipment rotation axis surface.
2. non-contact type tachometric sensor according to claim 1 is characterized in that, is provided with signal pre-processing circuit between described tongue tube connecting line and the sensor signal output cable.
3. non-contact type tachometric sensor according to claim 1 and 2 is characterized in that, two pole orientation of described permanent magnet are perpendicular to the rotation axis surface.
4. non-contact type tachometric sensor according to claim 1 and 2, it is characterized in that, described housing is for bearing the pressure hull of seawater pressure, pressure hull is to be assembled by two or two above parts, part of front end is the withstand voltage dry spring canister of encapsulation tongue tube, and each part junction is provided with O-ring seal.
5. non-contact type tachometric sensor according to claim 4 is characterized in that, described pressure hull shell wall thickness is 1-10mm.
6. non-contact type tachometric sensor according to claim 4 is characterized in that, is provided with O-ring seal between described pressure hull and the deep-sea watertight socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810031034 CN101256196A (en) | 2008-04-09 | 2008-04-09 | Non-contact type revolution speed transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810031034 CN101256196A (en) | 2008-04-09 | 2008-04-09 | Non-contact type revolution speed transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101256196A true CN101256196A (en) | 2008-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810031034 Pending CN101256196A (en) | 2008-04-09 | 2008-04-09 | Non-contact type revolution speed transducer |
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| CN (1) | CN101256196A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043066A (en) * | 2010-11-15 | 2011-05-04 | 蚌埠市双利电器有限责任公司 | Non-contact magnetic measuring element |
| CN103794409A (en) * | 2012-11-02 | 2014-05-14 | 中国科学院海洋研究所 | Underwater magnetic proximity switch |
| CN105318900A (en) * | 2015-12-07 | 2016-02-10 | 国网吉林省电力有限公司电力科学研究院 | Novel non-ferromagnetic encoder |
| CN109322652A (en) * | 2018-12-10 | 2019-02-12 | 中国地质大学（武汉） | A kind of turbodrill tachometric survey pipe nipple based on nanosystems |
| CN109765398A (en) * | 2019-01-18 | 2019-05-17 | 北京工业大学 | A kind of monitoring device of hobboing cutter revolving speed |
-
2008
- 2008-04-09 CN CN 200810031034 patent/CN101256196A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043066A (en) * | 2010-11-15 | 2011-05-04 | 蚌埠市双利电器有限责任公司 | Non-contact magnetic measuring element |
| CN103794409A (en) * | 2012-11-02 | 2014-05-14 | 中国科学院海洋研究所 | Underwater magnetic proximity switch |
| CN105318900A (en) * | 2015-12-07 | 2016-02-10 | 国网吉林省电力有限公司电力科学研究院 | Novel non-ferromagnetic encoder |
| CN109322652A (en) * | 2018-12-10 | 2019-02-12 | 中国地质大学（武汉） | A kind of turbodrill tachometric survey pipe nipple based on nanosystems |
| CN109322652B (en) * | 2018-12-10 | 2023-09-22 | 中国地质大学（武汉） | Turbine drilling tool rotating speed measuring nipple based on nano system |
| CN109765398A (en) * | 2019-01-18 | 2019-05-17 | 北京工业大学 | A kind of monitoring device of hobboing cutter revolving speed |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080903 |