CN115435675B - High-efficiency sealed angular displacement sensor capable of preventing liquid from immersing for long time - Google Patents
High-efficiency sealed angular displacement sensor capable of preventing liquid from immersing for long time Download PDFInfo
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- CN115435675B CN115435675B CN202211388088.XA CN202211388088A CN115435675B CN 115435675 B CN115435675 B CN 115435675B CN 202211388088 A CN202211388088 A CN 202211388088A CN 115435675 B CN115435675 B CN 115435675B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/14—Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/521—Sealing between contact members and housing, e.g. sealing insert
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Abstract
The invention discloses a high-efficiency sealed angular displacement sensor capable of preventing liquid from being immersed for a long time, which belongs to the technical field of production of displacement sensors and comprises a shell, a rotating shaft, magnetic steel, a magnetic induction probe, a circuit board, leads, a transmission part, a magnetic steel cover, conductive columns, an insulating tube and wires. The invention can realize the purpose of obviously improving the sealing performance and the waterproof effect, thereby enabling the sensor to work underwater for a long time.
Description
Technical Field
The invention relates to an angular displacement sensor, in particular to an efficient sealed angular displacement sensor capable of preventing liquid from being immersed for a long time, and belongs to the technical field of production of displacement sensors.
Background
The angular displacement sensor is used for detecting the angular displacement, has the advantages of small volume, high precision, high reliability, long service life, suitability for various complex environments and the like, and is widely applied to the fields of aviation, aerospace, petroleum, automobiles and the like.
With the development of the automation industry, parts of ships, boats, submarines and the like which need to be exposed in sea water are gradually subjected to position detection by using an angular displacement sensor, such as the position detection of opening and closing of parts of hatchdoors and the like, so that the dynamic conditions of the parts of hatches and the like are accurately fed back, and the sensor puts more strict requirements on the sealing reliability because the sensor is underwater.
The sealing mode of the traditional angular displacement sensor is mainly characterized in that a single sealing ring is adopted for sealing, the sealing effect of the sealing ring between a static shell and a cover plate which are both hardware is good, but the sealing effect of the sealing ring on the rotary seal between a rotary shaft and the shell (or the cover plate) and the sealing effect of the software and the hardware between a lead and the shell (or the cover plate) are not ideal enough, so that the sealing effect of the traditional angular displacement sensor is mainly good for the waterproof functions of dust prevention, short-time rainwater and the like, the immersion of liquid such as river water, seawater and the like can not be prevented for a long time, the purpose of long-term underwater work can not be realized, and the application requirements of the angular displacement sensor for position detection in the middle of exposed seawater can not be met.
In addition, the conventional angular displacement sensor has the following disadvantages: the connecting structure of the rotating shaft and the detected equipment is single, and the same sensor cannot meet different installation requirements of different users; the lead wire adopts the mode of getting rid of the line, and the user is connecting and is dismantling comparatively troublesome to the lead wire, and time cost is higher, and the lead wire that gets rid of also receives the interference of external electromagnetic field easily in signal transmission process, also can appear damaged and influence signal output reliability.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide an efficient sealed angular displacement sensor that can prevent liquid from entering for a long time by using a plurality of sealing methods.
The invention realizes the purpose through the following technical scheme:
a high-efficiency sealed angular displacement sensor capable of preventing liquid from immersing for a long time comprises a shell, a rotating shaft, magnetic steel, a magnetic induction probe, a circuit board and a lead wire, wherein the rotating shaft penetrates through a corresponding through hole in the shell and is connected with the shell through a bearing, the magnetic steel is installed in the shell and is connected with the inner end of the rotating shaft, the magnetic induction probe and the circuit board are installed in the shell and are correspondingly connected with each other, the lead wire is connected with the circuit board, the high-efficiency sealed angular displacement sensor capable of preventing liquid from immersing for a long time further comprises a transmission piece, a magnetic steel cover, a conductive column, an insulating tube and a lead wire, the shell comprises a front shell, a middle shell and a rear shell, the middle shell is a cylinder body, a partition plate integrally formed with the cylinder body is arranged in an inner cavity of the middle section of the middle shell, the outer end of the rotating shaft is used as the front end of the high-efficiency sealed angular displacement sensor capable of preventing liquid from immersing for a long time, the front end of the middle shell is connected with the rear end of the front shell, the rear end of the rotating shaft penetrates through the corresponding through hole in the front shell from front to back and is connected with the transmission piece, and the magnetic steel cover is arranged in the inner cavity of the transmission piece; the rear end of the middle shell is connected with the front end of the rear shell, a sealing ring is arranged at the joint, the magnetic induction probe and the circuit board are arranged in the front-section inner cavity of the rear shell, the magnetic induction probe and the magnetic steel are respectively positioned at two sides of the partition board and are close to each other, a partition wall is arranged in the middle section of the rear shell, and a plurality of rear shell through holes in the front-back direction are arranged on the partition wall, the plurality of insulating tubes are respectively sleeved outside the plurality of conductive columns and are respectively installed in the plurality of through holes of the rear shell, the rear ends of the plurality of leads are respectively connected with the front ends of the plurality of conductive columns, the rear ends of the plurality of conductive columns are respectively connected with the front ends of the plurality of leads, and the plurality of leads are respectively arranged in the rear section inner cavity of the rear shell and are filled with sealant.
Preferably, in order to adapt to connection structures of different types of detected equipment so as to meet different installation requirements of different users, a rotating shaft gear protruding towards the outer circumferential direction is arranged on the rotating shaft close to the front end, two opposite sides of the outer wall of the front end of the rotating shaft are provided with flat sections, and the end face of the front end of the rotating shaft is provided with a flat blind hole.
As preferred, in order to facilitate connecting and dismantling the wire with external equipment through the grafting mode fast and improve signal transmission shielding function, the plug connector is installed to the rear end of back shell, the plug connector includes connector housing, connector insulator and plug connector, the anterior segment of connector housing is equipped with the bellied connector bulge loop of outside peripheral direction, the connector bulge loop with the rear end of back shell is connected and the junction is equipped with the sealing washer, and the fore-and-aft direction is a plurality of the plug connector is installed in the connector housing and is passed a plurality of corresponding through-holes on the connector insulator, the connector insulator is fixed to be located in the connector housing, it is a plurality of the front end of plug connector with many the rear end of wire is connected.
Preferably, in order to further improve the sealing performance of the plug connector to meet the requirement of long-term underwater operation, the plug connector further comprises a front insulation pressing plate, an adhesive and a rear insulation pressing plate which are arranged in the connector housing, the front insulation pressing plate and the rear insulation pressing plate are respectively located on the front side and the rear side of the connector insulator, and the adhesive is respectively filled in gaps between the front insulation pressing plate and the connector insulator and between the rear insulation pressing plate and the connector insulator in the connector housing.
Preferably, in order to quickly and reliably mount the front insulating pressing plate and limit axial displacement of each part of the plug connector, an annular groove is formed in the outer edge of the front side of the front insulating pressing plate, and a clamp spring used for fixing the front insulating pressing plate is mounted in the annular groove.
Preferably, in order to improve the sealing performance of the connection between the plug connector and other mating connectors, a connector sealing ring is arranged in the connector housing at a position outside the rear insulating pressing plate.
Preferably, in order to facilitate connection of the rotating shaft and the transmission member and realization of rotation connection with the front shell, the rear end of the rotating shaft is arranged in the mounting hole at the front end of the transmission member and connected with the front end of the transmission member through a screw, and the bearing is mounted between the outer wall of the front section of the transmission member and the corresponding through hole wall of the front shell.
Preferably, in order to improve the rust prevention capability of the bearing to meet the long-term underwater work requirement, the bearing is a ceramic bearing.
Preferably, in order to position and install the ceramic bearing without the flange plate connecting structure and facilitate quick fixation, bosses for limiting the bearing are respectively arranged on the corresponding through hole front end hole wall of the front shell, the corresponding position of the rear section outer wall of the rotating shaft and the middle section inner wall of the transmission part, and a bending part for limiting the bearing and enabling the bearing to be quickly bent is arranged on the corresponding through hole middle section hole wall of the front shell.
The invention has the beneficial effects that:
the magnetic steel is arranged in the inner cavity at the rear end of the transmission part and sealed by the magnetic steel cover, the rear end of the transmission part and the magnetic steel cover are sealed by hardware, the magnetic induction probe and the circuit board are arranged in the inner cavity at the front section of the rear shell and are completely isolated from the magnetic steel and the whole inner cavity at the rear part of the front shell by the partition plate of the middle shell, the rear end of the middle shell and the front end of the rear shell are in hardware connection, the lead is sequentially connected with the conductive post and the lead, the conductive post and the through hole of the rear shell on the partition wall of the rear shell are sealed and fixed by the insulating tube, and the lead is sealed and fixed by filling the sealant, so that the purposes of obviously improving the sealing performance and the waterproof effect are realized by converting the rotary connection of the rotating shaft and the soft-hard connection between the lead and the shell into the hardware connection and the large-volume sealant sealing mode, and the immersion of river, seawater and other liquids can be prevented for a long time, thereby the sensor can work underwater for a long time, and the application requirements of position detection on angular displacement sensors exposed at the middle parts of ships, submarines and the like can be met.
Drawings
FIG. 1 is a schematic sectional elevational view of an exemplary highly efficient sealed angular displacement sensor capable of long term liquid immersion prevention according to the present invention;
FIG. 2 is a schematic diagram of the right side view of the highly efficient sealed angular displacement sensor of the present invention capable of preventing liquid immersion for an extended period of time;
fig. 3 is an enlarged view of a plug connector of an efficient sealed angular displacement sensor according to the present invention capable of preventing liquid intrusion for a long time, viewed from the same perspective as fig. 1 but on a larger scale than fig. 1.
In the figure, 1-plug connector, 2-rear shell, 3-sealant, 4-conducting wire, 5-middle shell, 6-bulkhead, 7-insulating tube, 8-conducting column, 9-lead wire, 10-circuit board, 11-clapboard, 12-magnetic induction probe, 13-magnetic steel cover, 14-front shell, 15-transmission piece, 16-magnetic steel, 17-bearing, 18-rotating shaft, 19-rotating shaft gear, 20-flat section, 21-flat blind hole, 22-connector convex ring, 23-connector shell, 24-rear insulating pressure plate, 25-adhesive glue, 26-connector insulator, 28-front insulating pressure plate, 29-plug connector, 30-bayonet.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1, the high-efficiency sealed angular displacement sensor capable of preventing liquid from immersing for a long time according to the present invention includes a housing, a rotating shaft 18, a magnetic steel 16, a magnetic induction probe 12, a circuit board 10, a lead wire 9, a transmission member 15, a magnetic steel cover 13, a conductive post 8, an insulating tube 7 and a wire 4, wherein the rotating shaft 18 passes through a corresponding through hole on the housing and is connected with the housing through a bearing 17, the magnetic steel 16 is installed in the housing and is connected with an inner end of the rotating shaft 18, the magnetic induction probe 12 and the circuit board 10 are installed in the housing and are connected with each other correspondingly, the lead wire 9 is connected with the circuit board 10, the housing includes a front housing 14, a middle housing 5 and a rear housing 2, the middle housing 5 is a cylinder, a partition plate 11 integrally formed with the cylinder is arranged in an inner cavity of a middle section of the middle housing, an outer end of the rotating shaft 18 is used as a front end of the high-efficiency sealed angular displacement sensor capable of preventing liquid from immersing for a long time, a front end of the middle housing 5 is connected with a rear end of the front housing 14 through a screw, a rear end of the rotating shaft 18 (i.e., an inner end of the rotating shaft passes through a corresponding through a through hole on the front housing 14 and is connected with a front end of the transmission member 13, and is connected with a transmission member 13, and the transmission member 13 is connected with the transmission member 13, and the transmission member 13 is connected with the transmission member, and the transmission member 13 is not marked in the rear end of the transmission member 13; the rear end of the middle shell 5 is connected with the front end of the rear shell 2, and the joint is provided with a sealing ring (two parallel sealing rings and not marked in the figure), the magnetic induction probe 12 and the circuit board 10 are arranged in the front-section inner cavity of the rear shell 2, the magnetic induction probe 12 and the magnetic steel 16 are respectively located on two sides of the partition board 11 and are close to each other, a partition wall 6 is arranged in the middle section of the rear shell 2, and rear shell through holes (four rear shell through holes and not marked in the figure) in a plurality of front and rear directions are arranged on the partition wall 6, a plurality of (four in the figure) insulating tubes 7 are respectively sleeved outside a plurality of (four in the figure) conductive columns 8 and are respectively installed in the rear shell through holes, the rear ends of a plurality of (four in the figure) leads 9 are respectively connected with the front ends of a plurality of conductive columns 8, the rear ends of the conductive columns 8 are respectively connected with the front ends of a plurality of (four in the figure) leads 4, the plurality of leads 4 are respectively arranged in the rear-section inner cavity of the rear shell 2, and the rear-section inner cavity is filled with a sealant 3 (preferably epoxy resin or silicon sealant).
As shown in fig. 1 to fig. 3, the present invention also discloses a plurality of more optimized specific structures, and the structures can be combined with one or more structures to form a more optimized technical solution according to the requirement.
In order to adapt to the connection structure of different types of detected equipment to meet different installation requirements of different users, a rotating shaft gear 19 protruding towards the outer circumferential direction is arranged on the rotating shaft 18 close to the front end, flat sections 20 are formed on two opposite sides of the outer wall of the front end of the rotating shaft 18, and a flat blind hole 21 is formed in the front end face of the rotating shaft 18.
In order to facilitate the wires 4 to be quickly connected and detached with external equipment in a plugging manner and improve the signal transmission shielding function, the rear end of the rear shell 2 is provided with the plugging connector 1, the plugging connector 1 comprises a connector shell 23, a connector insulator 26 (preferably epoxy resin) and plugging pieces 29 (a plugging pin or a jack in the figure), the front section of the connector shell 23 is provided with a connector convex ring 22 protruding towards the peripheral direction, the connector convex ring 22 is connected with the rear end of the rear shell 2 through screws, and a sealing ring (two parallel sealing rings and not marked in the figure) is arranged at the joint, a plurality of plugging pieces 29 in the front-back direction are arranged in the connector shell 23 and penetrate through a plurality of corresponding through holes on the connector insulator 26, the connector insulator 26 is fixedly arranged in the connector shell 23, and the front ends of the plugging pieces 29 are connected with the rear ends of the wires 4.
In order to further improve the sealing performance of the plug connector 1 to meet the requirement of long-term underwater operation, the plug connector 1 further includes a front insulating pressing plate 28 (preferably an epoxy resin plate), an adhesive 25 (preferably 704 glue) and a rear insulating pressing plate 24 (preferably an epoxy resin plate) disposed in the connector housing 23, the front insulating pressing plate 28 and the rear insulating pressing plate 24 are respectively located at the front side and the rear side of the connector insulator 26, and the gaps between the front insulating pressing plate 28 and the connector insulator 26 and between the rear insulating pressing plate 24 and the connector insulator 26 in the connector housing 23 are respectively filled with the adhesive 25.
In order to mount the front insulating pressing plate 28 quickly and reliably and limit axial displacement of the components of the plug connector 1, the front outer edge of the front insulating pressing plate 28 is provided with a ring groove, and a snap spring (not marked in the figure) for fixing the front insulating pressing plate 28 is mounted in the ring groove.
In order to improve the sealing performance of the plug connector 1 in connection with other mating connectors, a connector sealing ring (not labeled) is provided in the connector housing 23 at a position outside the rear insulating pressing plate 24.
In order to connect the rotating shaft 18 and the transmission member 15 and to realize the rotary connection with the front shell 14, the rear end of the rotating shaft 18 is arranged in the mounting hole at the front end of the transmission member 15 and connected with the mounting hole through a screw, and the bearing 17 is arranged between the outer wall of the front section of the transmission member 15 and the wall of the corresponding through hole of the front shell 14.
In order to improve the rust prevention capability of the bearing 17 to meet the long-term underwater work requirement, the bearing 17 is a ceramic bearing.
In order to position, install and realize quick fixation for the ceramic bearing without flange plate connection structure, bosses (not marked in the figure) for limiting the bearing 17 are respectively arranged at the corresponding positions of the front end hole wall of the corresponding through hole of the front shell 14, the rear section outer wall of the rotating shaft 18 and the middle section inner wall of the transmission part 15, a bending part (not marked in the figure) for limiting the bearing 17 and being capable of being quickly bent is arranged on the middle section hole wall of the corresponding through hole of the front shell 14, and the bending part is used for positioning and fixing the bearing 17 after the bearing 17 is installed in place from back to front.
Also shown in fig. 3 is a bayonet pin 30 of conventional construction provided on the connector housing 23 and adapted for connection with a mating connector.
As shown in fig. 1-3, when in use, the rotating shaft 18 is connected to a rotating member of the device to be detected through the rotating shaft gear 19, the flat section 20 or the flat blind hole 21, the rotating member drives the rotating shaft 18 to rotate, so as to drive the transmission member 15, the magnetic steel cover 13 and the magnetic steel 16 to rotate synchronously, the magnetic induction probe 12 detects a changed magnetic signal and converts the changed magnetic signal into an electric signal to be transmitted to a processor on the circuit board 10, the electric signal is processed by the processor on the circuit board 10 to obtain an angle change signal of the magnetic steel 16, and the angle change signal is transmitted to an external device through the lead 9, the conductive post 8, the lead 4, the plug connector 1 and a mating connector, thereby realizing the function of angular displacement detection. The inner cavity at the rear end of the transmission part 15 is sealed with the hardware + sealing ring between the magnetic steel cover 13, the magnetic induction probe 12 and the circuit board 10 are completely isolated from the magnetic steel 16 by the partition plate 11 of the middle outer shell 5, the rear end of the middle outer shell 5 is connected with the hardware + sealing ring between the front end of the rear outer shell 2, the conductive column 8 between the lead 9 and the rear outer shell 2 forms primary sealing through the insulating tube 7, the lead 4 and the sealant 3 form secondary sealing, the lead 4 is connected with the plug connector 1, and the sealing structure of the plug connector 1 forms tertiary sealing, so that the efficient sealing and waterproof effects between the whole sensor and the outside are finally realized, and the purpose of ensuring the normal work of the sensor under water (such as under seawater) for a long time is achieved. Although the sealing performance between the rotating shaft 18 and the front shell 14 is not very good, the bearing 17 adopts an antirust sealed ceramic bearing, which does not affect the long-term normal operation of the sensor under water, and the magnetic steel is not affected because the magnetic steel is positioned in the closed space formed by the inner cavity at the rear end of the transmission part 15 and the magnetic steel cover 13, and the magnetic induction probe 12 and the circuit board 10 are completely isolated from the whole inner cavity at the rear part of the front shell 14 by the partition plate 11 of the middle shell 5, and the water leaked through the bearing 17 can not enter the rear part of the middle shell 5 and the rear shell 2 completely, thereby ensuring the high-efficiency sealing effect.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, so long as the technical solutions can be realized on the basis of the above embodiments without creative efforts, and should be considered to fall within the protection scope of the patent claims of the present invention.
Claims (9)
1. The utility model provides a can prevent liquid immersion's high-efficient sealed angular displacement sensor for a long time, includes shell, pivot, magnet steel, magnetic induction probe, circuit board and lead wire, the pivot is passed corresponding through-hole on the shell and through the bearing with the shell is connected, the magnet steel install in the shell and with the inner of pivot is connected, the magnetic induction probe with the circuit board install in correspond the connection each other in the shell, the lead wire with the circuit board is connected, its characterized in that: the high-efficiency sealed angular displacement sensor capable of preventing liquid from immersing for a long time further comprises a transmission part, a magnetic steel cover, a conductive column, an insulating tube and a conducting wire, wherein the shell comprises a front shell, a middle shell and a rear shell, the middle shell is a cylinder, a partition plate which is integrally formed with the cylinder is arranged in an inner cavity of the middle section of the middle shell, the outer end of the rotating shaft is the front end of the high-efficiency sealed angular displacement sensor capable of preventing liquid from immersing for a long time, the front end of the middle shell is connected with the rear end of the front shell, the rear end of the rotating shaft penetrates through a corresponding through hole in the front shell from front to back and is connected with the front end of the transmission part, an inner cavity is arranged at the rear end of the transmission part, the magnetic steel cover is connected with the rear end of the transmission part, a sealing ring is arranged at the joint of the magnetic steel cover, and the magnetic steel is arranged in the inner cavity at the rear end of the transmission part and is sealed by the magnetic steel cover; the rear end of the middle shell is connected with the front end of the rear shell, a sealing ring is arranged at the joint, the magnetic induction probe and the circuit board are arranged in the front-section inner cavity of the rear shell, the magnetic induction probe and the magnetic steel are respectively positioned at two sides of the partition board and are close to each other, a partition wall is arranged in the middle section of the rear shell, and a plurality of rear shell through holes in the front-back direction are arranged on the partition wall, the plurality of insulating tubes are respectively sleeved outside the plurality of conductive columns and are respectively installed in the plurality of through holes of the rear shell, the rear ends of the plurality of leads are respectively connected with the front ends of the plurality of conductive columns, the rear ends of the plurality of conductive columns are respectively connected with the front ends of the plurality of leads, and the plurality of leads are respectively arranged in the rear section inner cavity of the rear shell and are filled with sealant.
2. An efficient sealed angular displacement sensor capable of preventing liquid immersion for extended periods of time as claimed in claim 1, wherein: the rotary shaft is provided with a rotary shaft gear protruding towards the peripheral direction at a position close to the front end, two opposite sides of the outer wall of the front end of the rotary shaft are provided with flat sections formed by planes, and the end face of the front end of the rotary shaft is provided with a flat blind hole.
3. A highly efficient sealed angular displacement sensor capable of preventing liquid immersion for long periods of time according to claim 1 or 2, characterized by: the utility model discloses a cable connector, including back shell, connector insulator and plug connector, the front segment of connector shell is equipped with to the bellied connector bulge loop of outer peripheral direction, the connector bulge loop with the rear end of back shell is connected and the junction is equipped with the sealing washer, and the fore-and-aft direction is a plurality of the plug connector is installed in the connector shell and pass a plurality of through-holes that correspond on the connector insulator, the connector insulator is fixed to be located in the connector shell, it is a plurality of the front end of plug connector with many the rear end of wire is connected.
4. A highly efficient sealed angular displacement sensor capable of preventing liquid immersion for extended periods of time as claimed in claim 3, wherein: the plug connector further comprises a front insulating pressing plate, adhesive glue and a rear insulating pressing plate which are arranged in the connector shell, the front insulating pressing plate and the rear insulating pressing plate are respectively located on the front side and the rear side of the connector insulator, and the adhesive glue is respectively filled in gaps between the front insulating pressing plate and the connector insulator and between the rear insulating pressing plate and the connector insulator in the connector shell.
5. An efficient sealed angular displacement sensor capable of preventing liquid immersion for extended periods of time as claimed in claim 4, wherein: the front side outer edge of preceding insulating clamp plate is equipped with the annular and this annular installs in and is used for fixing preceding insulating clamp plate's jump ring.
6. An efficient sealed angular displacement sensor capable of preventing liquid immersion for extended periods of time as claimed in claim 4, wherein: and a connector sealing ring is arranged at a position outside the rear insulating pressing plate in the connector shell.
7. A highly efficient sealed angular displacement sensor capable of preventing liquid immersion for long periods of time according to claim 1 or 2, characterized by: the rear end of the rotating shaft is arranged in the mounting hole at the front end of the transmission piece and is connected with the mounting hole through a screw, and the bearing is mounted between the outer wall of the front section of the transmission piece and the wall of the corresponding through hole of the front shell.
8. An efficient sealed angular displacement sensor capable of long-term liquid immersion prevention according to claim 7, wherein: the bearing is a ceramic bearing.
9. An efficient sealed angular displacement sensor capable of preventing liquid immersion for extended periods of time as claimed in claim 8, wherein: the front shell is characterized in that the corresponding through hole front end hole wall of the front shell, the corresponding position of the rear section outer wall of the rotating shaft and the middle section inner wall of the transmission part are respectively provided with a boss for limiting the bearing, and the corresponding through hole middle section hole wall of the front shell is provided with a bending part for limiting the bearing and being capable of being quickly bent.
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| CN202211388088.XA CN115435675B (en) | 2022-11-07 | 2022-11-07 | High-efficiency sealed angular displacement sensor capable of preventing liquid from immersing for long time |
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| CN202211388088.XA CN115435675B (en) | 2022-11-07 | 2022-11-07 | High-efficiency sealed angular displacement sensor capable of preventing liquid from immersing for long time |
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