CN217877525U - Adiabatic magnetostrictive sensor - Google Patents
Adiabatic magnetostrictive sensor Download PDFInfo
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- CN217877525U CN217877525U CN202222152663.8U CN202222152663U CN217877525U CN 217877525 U CN217877525 U CN 217877525U CN 202222152663 U CN202222152663 U CN 202222152663U CN 217877525 U CN217877525 U CN 217877525U
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Abstract
The utility model discloses a heat insulation type magnetostrictive transducer, which comprises a protection tube outside the transducer, wherein the protection shell is a tubular shell, and an induction magnetic ring is arranged outside the protection shell in a sliding manner; the protective housing outside is provided with thermal-insulated subassembly, thermal-insulated subassembly is including installation pipe, screw ring, radiation shield and spacing collar, screw ring fixed connection is close to open-ended one end at the protective housing, the installation pipe box is established on the protective housing, and one end opening is provided with the screw thread, with screw ring threaded connection, the opening that slides with the protective housing diameter is unanimous is seted up to the installation pipe other end, spacing collar fixed connection is kept away from open-ended one end at the installation pipe, and the diameter is greater than the sliding opening diameter, the installation pipe inboard is provided with the installation annular, radiation shield fixed mounting is inside the installation annular, and the radiation shield diameter is greater than the diameter of response magnetic ring. The utility model discloses can be effectual thermal-insulated to reduce the influence of temperature to magnetic field, guarantee the sensitivity of sensor.
Description
Technical Field
The utility model relates to a flexible sensor technical field especially relates to an adiabatic formula magnetostrictive sensor.
Background
The magnetostrictive displacement sensor measures the actual displacement value of a detected product by accurately detecting the absolute position of the movable magnetic ring through an internal non-contact measurement and control technology, and the movable magnetic ring used for determining the position is not in direct contact with a sensitive element, so that the sensor can be applied to extremely severe industrial environment and is not easily influenced by oil stains, solutions, dust or other pollution.
However, the magnetostrictive sensor is affected by external factors in the using process, and the change of temperature can cause the change of magnetism, but most of the existing sensors are simple stainless steel shells, so that the influence of temperature on an internal magnetic field can not be effectively cut off, and the sensitivity of the sensor is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the existing sensor in the prior art is a simple stainless steel shell, and the influence of the temperature of the partition on the internal magnetic field cannot be effective, so that the sensitivity of the sensor is reduced, and providing the heat-insulating magnetostrictive sensor.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a heat insulation type magnetostrictive sensor comprises a protection tube outside the sensor, wherein the protection shell is a tubular shell, and an induction magnetic ring is arranged outside the protection shell in a sliding mode;
the protective housing outside is provided with thermal-insulated subassembly, thermal-insulated subassembly is including installation pipe, screw ring, radiation shield and spacing collar, screw ring fixed connection is close to open-ended one end at the protective housing, the installation pipe box is established on the protective housing, and one end opening is provided with the screw thread, with screw ring threaded connection, the opening that slides with the protective housing diameter is unanimous is seted up to the installation pipe other end, spacing collar fixed connection is kept away from open-ended one end at the installation pipe, and the diameter is greater than the sliding opening diameter, the installation pipe inboard is provided with the installation annular, radiation shield fixed mounting is inside the installation annular, and the radiation shield diameter is greater than the diameter of response magnetic ring.
Preferably, one side of the protective shell is provided with an opening, a magnetic field assembly is arranged in the protective shell, and the magnetic field assembly is used for induction sensing.
Preferably, the magnetic field assembly includes a waveguide wire, a converter and a sensing element, the waveguide wire is disposed inside the protective shell, the converter is fixedly connected to an end of the waveguide wire, and the sensing element is disposed on the waveguide wire and located inside the protective shell.
Preferably, a sealing assembly is arranged between the limiting ring and the installation pipe and used for strengthening the sealing performance of the joint of the installation pipe.
Preferably, the seal assembly comprises a seal ring and a seal groove, the seal groove is annular and is arranged on the limit ring, the seal ring is fixedly connected to the inner wall of the installation pipe and concentrically arranged with the sliding opening, and the seal ring is hermetically arranged inside the seal groove.
Preferably, the protective housing is provided with two sliding grooves in an up-and-down symmetrical manner, the induction magnetic ring is fixedly connected with a sliding rod, and the sliding rod is arranged inside the sliding grooves.
Compared with the prior art, the beneficial effects of the utility model are that:
in the installation, establish the installation pipe box on the protective housing, remove the installation pipe simultaneously, carry out threaded connection through the screw thread and the screw ring of port position to the rigidity of installing the pipe, the response magnetic ring that slides the setting on to the protective housing through inside radiation shield casing carries out adiabatic protection, thereby has avoided the influence of external environmental factor to the sensor, the utility model discloses can effectually insulate against heat, thereby reduce the influence of temperature to magnetic field, guarantee the sensitivity of sensor.
Drawings
Fig. 1 is a schematic front structural view of an adiabatic magnetostrictive sensor according to the present invention;
fig. 2 is a schematic side view of an adiabatic magnetostrictive sensor according to the present invention;
fig. 3 is a schematic diagram of an internal structure of an adiabatic magnetostrictive sensor according to the present invention;
fig. 4 is a cross-sectional view of an adiabatic magnetostrictive sensor according to the present invention.
In the figure: the magnetic field sensor comprises a protective shell 1, an induction magnetic ring 2, a heat insulation assembly 3, a mounting pipe 31, a threaded ring 32, a heat insulation sleeve 33, a limiting ring 34, a magnetic field assembly 4, a waveguide wire 41, a converter 42, a magnet 43, a sensitive element 43, a sealing assembly 5, a sealing ring 51, a sealing groove 52 and a sliding rod 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the present invention, the terms "upper", "lower", "left", "right", "middle" and "one" are used for clarity of description, but not for limiting the range of the present invention, and the relative relationship changes or adjustments without substantial technical changes should be regarded as the scope of the present invention.
Referring to fig. 1-4, the heat-insulating magnetostrictive sensor comprises a protection tube outside the sensor, wherein a protection shell 1 is a tubular shell, and an induction magnetic ring 2 is arranged outside the protection shell in a sliding manner;
the 1 outside of protective housing is provided with thermal-insulated subassembly 3, thermal-insulated subassembly 3 includes installation pipe 31, screw ring 32, radiation shield 33 and spacing collar 34, screw ring 32 fixed connection is close to open-ended one end at protective housing 1, installation pipe 31 cover is established on protective housing 1, and the one end opening is provided with the screw thread, with screw ring 32 threaded connection, the smooth mouth unanimous with 1 diameter of protective housing is seted up to the installation pipe 31 other end, open-ended one end is kept away from at installation pipe 31 to spacing collar 34 fixed connection, and the diameter is greater than smooth mouthful diameter, installation pipe 31 inboard is provided with the installation annular, radiation shield 33 fixed mounting is inside the installation annular, and radiation shield 33 diameter is greater than induction magnetic ring 2's diameter.
Use above-mentioned technical scheme's embodiment, in the installation, establish installation pipe 31 cover on protective housing 1, remove installation pipe 31 simultaneously, screw thread and threaded ring 32 through the port position carry out threaded connection to install the rigidity of pipe 31, the response magnetic ring 2 that slides and set up on protective housing 1 through inside radiation shield 33 carries out adiabatic protection, thereby has avoided the influence of external environmental factor to the sensor, the utility model discloses can effectually insulate against heat, thereby reduce the influence of temperature to magnetic field, guarantee the sensitivity of sensor.
According to the preferable technical scheme in the embodiment, one side of the protective shell 1 is provided with an opening, a magnetic field assembly 4 is arranged in the protective shell 1, and the magnetic field assembly 4 is used for induction sensing;
the magnetic field assembly 4 comprises a waveguide wire 41, a converter 42 and a sensing element 43, the waveguide wire 41 is arranged in the protective shell 1, the converter 42 is fixedly connected to the end part of the waveguide wire 41, the sensing element 43 is arranged on the waveguide wire 41 and is positioned in the protective shell 1, during the measurement process, a current pulse is generated in an electronic chamber of a sensor and is transmitted in the protective shell 1, so that a circumferential magnetic field is generated outside the protective shell 1, when the magnetic field is intersected with a magnetic field generated by a sensing magnetic ring 2 which is sleeved on the protective shell 1 and used as a position change, a strain mechanical wave pulse signal is generated in the protective shell 1 due to the effect of magnetostriction, and the strain mechanical wave pulse signal is transmitted at a fixed sound speed and is detected by the electronic chamber quickly;
a sealing component 5 is arranged between the limiting ring 34 and the mounting pipe 31, the sealing component 5 is used for strengthening the sealing performance of the joint of the mounting pipe 31, and the sealing component 5 is used for reducing the entering of external air and reducing the influence of heat in the air on a magnetic field;
the sealing assembly 5 comprises a sealing ring 51 and a sealing groove 52, the sealing groove 52 is annular and is arranged on the limiting ring 34, the sealing ring 51 is fixedly connected to the inner wall of the mounting pipe 31 and is arranged concentrically with the sliding opening, the sealing ring 51 is arranged in the sealing groove 52 in a sealing manner, and the sealing ring 51 and the sealing groove 52 which are in close contact can seal the gap between the limiting ring 34 and the mounting pipe 31, so that the change of the temperature in the mounting pipe 31 is reduced;
two sliding grooves are symmetrically formed in the upper portion and the lower portion of the protective shell 1, a sliding rod 6 is fixedly connected to the induction magnetic ring 2, and the sliding rod 6 is arranged inside the sliding grooves.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A heat insulation type magnetostrictive transducer comprises a protective shell outside the transducer, and is characterized in that the protective shell (1) is a tubular shell, and an induction magnetic ring (2) is arranged outside the tubular shell in a sliding manner;
protective housing (1) outside is provided with thermal-insulated subassembly (3), thermal-insulated subassembly (3) are including installation pipe (31), screw ring (32), radiation shield (33) and spacing collar (34), screw ring (32) fixed connection is close to open-ended one end in protective housing (1), installation pipe (31) cover is established on protective housing (1), and one end opening is provided with the screw thread, with screw ring (32) threaded connection, the spout unanimous with protective housing (1) diameter is seted up to installation pipe (31) other end, spacing collar (34) fixed connection keeps away from open-ended one end in installation pipe (31), and the diameter is greater than the spout diameter, installation pipe (31) inboard is provided with the installation annular, radiation shield (33) fixed mounting is inside the installation annular, and radiation shield (33) diameter is greater than the diameter of response magnetic ring (2).
2. An adiabatic magnetostrictive sensor according to claim 1, characterized in that the protective casing (1) is open at one side, and a magnetic field assembly (4) is arranged inside the protective casing (1), and the magnetic field assembly (4) is used for sensing.
3. An adiabatic magnetostrictive sensor according to claim 2, characterized in that the magnetic field assembly (4) comprises a waveguide wire (41), a transducer (42) and a sensitive element (43), the waveguide wire (41) is arranged inside the protective shell (1), the transducer (42) is fixedly connected to the end of the waveguide wire (41), and the sensitive element (43) is arranged on the waveguide wire (41) and is located inside the protective shell (1).
4. An adiabatic magnetostrictive sensor according to claim 1, wherein a sealing assembly (5) is arranged between the limiting ring (34) and the mounting tube (31), and the sealing assembly (5) is used for enhancing the sealing performance of the joint of the mounting tube (31).
5. The insulated magnetostrictive transducer according to claim 4, wherein the sealing assembly (5) comprises a sealing ring (51) and a sealing groove (52), the sealing groove (52) is annular and is formed on the limit ring (34), the sealing ring (51) is fixedly connected to the inner wall of the installation pipe (31) and is arranged concentrically with the sliding opening, and the sealing ring (51) is arranged inside the sealing groove (52) in a sealing manner.
6. An adiabatic magnetostrictive sensor according to claim 1, wherein the protective casing (1) has two sliding grooves arranged in a vertical symmetry, the magnetic induction ring (2) is fixedly connected with a sliding rod (6), and the sliding rod (6) is arranged in the sliding grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222152663.8U CN217877525U (en) | 2022-08-16 | 2022-08-16 | Adiabatic magnetostrictive sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222152663.8U CN217877525U (en) | 2022-08-16 | 2022-08-16 | Adiabatic magnetostrictive sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217877525U true CN217877525U (en) | 2022-11-22 |
Family
ID=84077014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222152663.8U Active CN217877525U (en) | 2022-08-16 | 2022-08-16 | Adiabatic magnetostrictive sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217877525U (en) |
-
2022
- 2022-08-16 CN CN202222152663.8U patent/CN217877525U/en active Active
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