Underwater acoustic communication transducer structure with self-cleaning function and manufacturing method

Abstract

The present invention relates to the technical field of underwater acoustic transducers, and more specifically, to an underwater acoustic communication transducer structure with a self-cleaning function and a manufacturing method, comprising a transducer device, the transducer device comprising a fixture body and a through line arranged on the top surface of the fixture body, a jacket device arranged on the outside of the transducer device, a driving device arranged on the inside of the jacket device, and a plurality of extension devices regularly distributed on the outside of the transducer device. In the underwater acoustic communication transducer structure with a self-cleaning function and a manufacturing method, a toggle portion can drive the positions of the plurality of extension devices to move outward, and then directly contact with the attachments on the surface of the fixture body through thin strips and apply mechanical force, so as to peel the attachments from the surface of the fixture body, and start the pressed ceramic inside the fixture body, so that the vibration of the pressed ceramic is transmitted to the outside of the plurality of thin strips through the connecting ring, and the attachments are further cleaned.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater acoustic transducers, and more specifically, to an underwater acoustic communication transducer structure with a self-cleaning function and a manufacturing method thereof. Background Art

[0002] An underwater acoustic communication transducer is a device that converts an electrical signal into an underwater acoustic signal or converts an underwater acoustic signal into an electrical signal, and is a key device for realizing underwater acoustic communication. Piezoelectric ceramics are used as the transducer material inside it. When a high-frequency alternating voltage is applied to the piezoelectric ceramic sheet by an external power supply, the piezoelectric ceramic sheet will generate high-frequency vibrations by using the piezoelectric effect, and then radiate ultrasonic waves to realize the transmission of underwater acoustic signals.

[0003] The patent with the application number CN202410319643.6 discloses a broadband mid-low frequency composite transmitting transducer for deep sea, including: a low-frequency transmitting transducer, a medium-frequency transmitting transducer, a water-permeable housing, and a cable; the low-frequency transmitting transducer is connected to a base and is used for radiating low-frequency sound waves into the water medium; the medium-frequency transmitting transducer is connected to the base and is used for radiating medium-frequency sound waves into the water medium; the water-permeable housing is connected to the base and is used to achieve pressure balance inside and outside the composite transmitting transducer.

[0004] However, existing underwater acoustic communication transducers have long faced the problem of performance degradation caused by the attachment of marine organisms. Traditional solutions mainly rely on manual diving cleaning or external mechanical scraping devices. However, manual maintenance is costly and cannot respond in real time to the accumulation of attachments. Moreover, external cleaning equipment not only occupies space but also may introduce risks such as seal failure and increased energy consumption due to complex mechanical structures.

[0005] In view of this, we propose an underwater acoustic communication transducer structure with a self-cleaning function and a manufacturing method thereof. Summary of the Invention

[0006] The purpose of the present invention is to provide an underwater acoustic communication transducer structure with a self-cleaning function and a manufacturing method thereof to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] An underwater acoustic communication transducer structure with a self-cleaning function includes a transducer device, and the transducer device includes a fixed body and a wire passing through arranged on the top surface of the fixed body;

[0009] An outer sleeve device is arranged outside the transducer device, a driving device is arranged inside the outer sleeve device, and a plurality of outward extending devices are regularly distributed outside the transducer device;

[0010] The outer jacket device includes a pair of sealing covers symmetrically arranged in the upper and lower parts, a rotating ring rotatably connected to the outer side of the sealing covers, and a plurality of arc-shaped scrapers rotating together with the rotating ring. The arc-shaped scrapers rotate when subjected to the force of the water flow, thereby preventing plankton, silt and loose attachments from being deposited on the surface of the fixing body, thereby playing a preventive cleaning role.

[0011] The driving device comprises a driving motor, a rotating shaft rotating with the output shaft of the driving motor, and a pair of symmetrically distributed toggling parts; the toggling parts comprise a toggling ring and inner ring teeth arranged on the inner ring wall of the toggling ring, and a plurality of regularly distributed arc grooves are opened on the top surface of the toggling ring;

[0012] The extending device includes a pair of parallel arc-shaped bars, a plurality of thin strips connected between the two arc-shaped bars, a sleeve rod arranged on the inner ring wall of the arc-shaped bar, and a protrusion arranged at the end of the sleeve rod. When the toggle part rotates, the contact position between the protrusion and the arc-shaped groove wall is changed, thereby driving the arc-shaped bar to move outward, and then directly contacting the attachment on the surface of the fixer body through the thin strip and applying mechanical force, the attachment is peeled off the surface of the fixer body, and stubborn attachments such as barnacles are effectively dealt with.

[0013] In the technical solution of the present invention, the transducer device also includes an outer ring body arranged at the upper and lower ends of the fixture body, a connecting ring for connecting to the piezoelectric ceramic inside the fixture body, a number of protruding rods regularly distributed on the outer ring wall of the connecting ring, and an inner ring body arranged inside the outer ring body.

[0014] In the technical solution of the present invention, a plurality of regularly distributed strip grooves are provided on the outer wall of the fixing body, the outer ring body and the inner ring body are both welded and fixed to the fixing body, and a plurality of regularly distributed through holes that penetrate inside and outside are provided on the outer wall of the outer ring body.

[0015] In the technical solution of the present invention, the connecting ring is fixed to the piezoelectric ceramic inside the fixture body through the round rod at the bottom, the convex rods are welded and fixed to the outer wall of the connecting ring, and the number of the convex rods is the same as that of the through holes and their positions correspond one to one.

[0016] In the technical solution of the present invention, the sealing cover is clamped and fixed on the outer side wall of the outer ring body, and a limiting groove with an L-shaped longitudinal section is opened on the outer ring wall of the sealing cover, and the rotating ring is rotatably connected to the inside of the limiting groove.

[0017] In the technical solution of the present invention, a motor cover is clamped and fixed on the top surface of the sealing cover, and a connecting rod is clamped between the outer side walls of the two rotating rings and the arc-shaped scraper.

[0018] In the technical solution of the present invention, the driving motor is clamped and fixed inside the sealing cover located above, the rotating shaft is rotatably connected to the inside of the fixing body, the rotating shaft is coaxially connected to the output shaft of the driving motor, and a pair of parallel shaft teeth are clamped and fixed on the outer wall of the rotating shaft.

[0019] In the technical solution of the present invention, the toggle ring is rotatably connected to the inner ring wall of the outer ring body, the inner ring teeth are welded and fixed to the toggle ring, and the inner ring teeth are meshed with the shaft teeth.

[0020] In the technical solution of the present invention, the thin strip is integrally formed with the upper and lower arc-shaped strips, the size of the thin strip is adapted to the size of the strip-shaped groove, the sleeve rod is welded and fixed to the arc-shaped strip and slidably connected to the inside of the through hole, and the protrusion is integrally formed with the sleeve rod and the end portion extends to the inside of the arc-shaped groove.

[0021] On the other hand, the present invention also provides a method for manufacturing an underwater acoustic communication transducer with a self-cleaning function, using the above-mentioned underwater acoustic communication transducer structure with a self-cleaning function, comprising the following steps:

[0022] S1. First, place the preliminarily processed fixture body on the assembly table, and fix the connecting ring to the piezoelectric ceramic inside the fixture body through the round rod at the bottom;

[0023] S2, then, insert the sleeve rods in the plurality of extension devices into the inner part of the outer ring body through the through holes, and sleeve the sleeve rods on the outer side of the protruding rods, and then weld and fix the protruding blocks on the outer side walls of the sleeve rods;

[0024] S3, then, place the toggle ring in the toggle part inside the outer ring body, ensure that the plurality of protruding rods extend into the interior of the plurality of arc-shaped grooves respectively, and insert the rotating shaft into the interior of the fixing body;

[0025] S4, then, clamp and fix the two shaft teeth on the outer wall of the rotating shaft to ensure that the shaft teeth are meshed with the inner ring teeth;

[0026] S5, then, the upper and lower sealing covers are respectively clamped and fixed on the outer side wall of the upper outer ring body, and the connection between the inner through hole of the sealing cover and the inner ring body is sealed by a sealing ring;

[0027] S6. Subsequently, the arc-shaped scraper is clamped and fixed on the outer wall of the rotating ring through two connecting rods, and the driving motor is coaxially connected to the rotating shaft, and the motor cover is threadedly connected to the top surface of the sealing cover.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The structure and manufacturing method of the underwater acoustic communication transducer with self-cleaning function. After the transducer device is put into the water, the arc scraper rotates under the action of the water flow, thereby preventing plankton, silt and loose attachments from depositing on the surface of the fixed body, thereby playing a preventive cleaning role.

[0030] 2. The structure and manufacturing method of the underwater acoustic communication transducer with self-cleaning function, the toggle part can drive the position of several protruding devices to move outward, and then directly contact the attachments on the surface of the fixture body through the thin strips and apply mechanical force to peel the attachments from the surface of the fixture body, and start the pressed ceramic inside the fixture body, and transmit the vibration of the pressed ceramic to the outside of several thin strips through the connecting ring, so as to further clean the attachments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0033] Figure 3 It is a schematic diagram of the structure of the energy conversion device in the present invention;

[0034] Figure 4 For the present invention Figure 3 A magnified schematic diagram of part A;

[0035] Figure 5 It is a schematic cross-sectional view of the structure of the jacket device in the present invention;

[0036] Figure 6 It is a schematic cross-sectional view of the structure of the sealing cover in the present invention;

[0037] Figure 7 It is a schematic diagram of the structure of the driving device in the present invention;

[0038] Figure 8 It is a structural schematic diagram of the toggle part in the present invention;

[0039] Figure 9 It is a structural schematic diagram of the extension device in the present invention;

[0040] Description of reference numerals:

[0041] 100, transducer; 110, fixture body; 111, strip groove; 120, outer ring body; 121, through hole; 130, connecting ring; 140, convex rod; 150, inner ring body; 160, through wire;

[0042] 200, jacket device; 210, sealing cover; 211, limiting groove; 220, rotating ring; 230, motor cover; 240, connecting rod; 250, arc scraper;

[0043] 300, driving device; 310, driving motor; 320, rotating shaft; 330, shaft teeth; 340, shifting part; 341, shifting ring; 3410, arc groove; 342, inner ring teeth;

[0044] 400, extension device; 410, arc-shaped strip; 420, thin strip; 430, sleeve rod; 440, protrusion. DETAILED DESCRIPTION

[0045] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] See also Figures 1-9 As shown, this embodiment provides a technical solution:

[0047] An underwater acoustic communication transducer structure with a self-cleaning function includes a transducer device 100, wherein the transducer device 100 includes a fixing body 110 and a through line 160 disposed on the top surface of the fixing body 110;

[0048] In this embodiment, Figures 2-4 As shown, a jacket device 200 is disposed on the outside of the transducer device 100 , a driving device 300 disposed on the inside of the jacket device 200 , and a plurality of extension devices 400 regularly distributed on the outside of the transducer device 100 .

[0049] Specifically, the transducer device 100 also includes an outer ring body 120 arranged at the upper and lower ends of the fixing body 110, a connecting ring 130 used to connect to the piezoelectric ceramic inside the fixing body 110, a plurality of protruding rods 140 regularly distributed on the outer ring wall of the connecting ring 130, and an inner ring body 150 arranged on the inner side of the outer ring body 120.

[0050] Furthermore, a plurality of regularly distributed strip grooves 111 are provided on the outer wall of the fixing body 110, the outer ring body 120 and the inner ring body 150 are both welded and fixed to the fixing body 110, and a plurality of regularly distributed through holes 121 are provided on the outer wall of the outer ring body 120 that penetrate inside and outside.

[0051] Furthermore, the connecting ring 130 is fixed to the piezoelectric ceramic inside the fixture body 110 through the round rod at the bottom, and the protruding rods 140 are welded and fixed to the outer wall of the connecting ring 130. The number of the protruding rods 140 and the through holes 121 are the same and the positions correspond one to one.

[0052] Furthermore, the fixture body 110 is used to ensure the strength of the overall structure of the transducer device 100, the outer ring body 120 cooperates with the inner ring body 150 to provide a placement interval for the outer sleeve device 200 and the drive device 300, and the connecting ring 130 is used to connect with the pressed ceramic inside the fixture body 110. When the transducer device 100 is working, when an external power source is applied to the piezoelectric ceramic sheet to generate a high-frequency alternating voltage, the piezoelectric effect is utilized, and the piezoelectric ceramic sheet will generate high-frequency vibrations, and then radiate ultrasonic waves to achieve the emission of underwater acoustic signals, while the connecting ring 130 and the protruding rod 140 are used to transmit the vibration of the pressed ceramic sheet.

[0053] In this embodiment, Figures 5-6 As shown, the outer cover device 200 includes a pair of sealing covers 210 symmetrically arranged in an upper and lower direction, a rotating ring 220 rotatably connected to the outer side of the sealing covers 210 , and a plurality of arc-shaped scrapers 250 rotating together with the rotating ring 220 .

[0054] Specifically, the sealing cover 210 is clamped and fixed on the outer wall of the outer ring body 120 . A limiting groove 211 with an L-shaped longitudinal section is provided on the outer ring wall of the sealing cover 210 . The rotating ring 220 is rotatably connected to the inside of the limiting groove 211 .

[0055] Furthermore, a motor cover 230 is clamped and fixed on the top surface of the sealing cover 210 , and a connecting rod 240 is clamped between the outer side walls of the two rotating rings 220 and the arc-shaped scraper 250 .

[0056] Furthermore, the sealing cover 210 is used to ensure the sealing of the outer ring body 120, and the limiting groove 211 is used to provide a rotation range for the rotating ring 220. The arc scraper 250 will rotate after being affected by the force of the water flow, thereby preventing plankton, silt and loose attachments from depositing on the surface of the fixed body 110, thereby playing a preventive cleaning role.

[0057] In this embodiment, Figures 7-8 As shown, the driving device 300 includes a driving motor 310, a rotating shaft 320 that rotates along with the output shaft of the driving motor 310, and a pair of toggle parts 340 symmetrically distributed up and down; the toggle part 340 includes a toggle ring 341 and inner ring teeth 342 arranged on the inner ring wall of the toggle ring 341, and a plurality of regularly distributed arc grooves 3410 are opened on the top surface of the toggle ring 341.

[0058] Specifically, the driving motor 310 is clamped and fixed inside the sealing cover 210 located above, the rotating shaft 320 is rotatably connected to the inside of the fixing body 110, the rotating shaft 320 is coaxially connected to the output shaft of the driving motor 310, and a pair of parallel shaft teeth 330 are clamped and fixed on the outer wall of the rotating shaft 320.

[0059] Furthermore, the toggle ring 341 is rotatably connected to the inner ring wall of the outer ring body 120 , the inner ring teeth 342 are welded and fixed to the toggle ring 341 , and the inner ring teeth 342 are meshed with the shaft teeth 330 .

[0060] Furthermore, after the driving motor 310 is started, it drives the rotating shaft 320 to rotate, and after the shaft teeth 330 collide with the inner ring teeth 342, it drives the dial ring 341 to rotate.

[0061] In this embodiment, Figure 9 As shown, the extension device 400 includes a pair of parallel arc-shaped bars 410 , a plurality of thin bars 420 connected between the two arc-shaped bars 410 , a sleeve rod 430 disposed on the inner side ring wall of the arc-shaped bar 410 , and a protrusion 440 disposed at the end of the sleeve rod 430 .

[0062] Specifically, the thin strip 420 is integrally formed with the upper and lower arc-shaped strips 410 , the size of the thin strip 420 is adapted to the size of the strip groove 111 , the sleeve rod 430 is welded and fixed to the arc-shaped strip 410 and is slidably connected to the inside of the through hole 121 , and the protrusion 440 is integrally formed with the sleeve rod 430 and the end thereof extends to the inside of the arc-shaped groove 3410 .

[0063] Furthermore, when the toggle portion 340 rotates, the contact position between the protrusion 440 and the wall of the arc groove 3410 is changed, thereby driving the arc strip 410 to move outward, and then directly contacting the attachments on the surface of the fixture body 110 through the thin strips 420 and applying mechanical force to peel the attachments from the surface of the fixture body 110. At this time, the arc scraper 250 will collide with several thin strips 420 when it rotates. After the protruding rod 140 transmits the vibration of the pressed ceramic to the arc strip 410 and several thin strips 420, the vibration energy is transmitted to the attachment through several thin strips 420, and high-frequency vibration is used to destroy the adhesion structure inside the attachment, such as biological mucus or calcium deposition, so that it is completely separated, and it is effective to deal with stubborn attachments such as barnacles.

[0064] The present invention also provides a method for manufacturing an underwater acoustic communication transducer with a self-cleaning function, using the above-mentioned underwater acoustic communication transducer structure with a self-cleaning function, comprising the following steps:

[0065] S1. First, place the preliminarily processed fixture body 110 on the assembly table, and fix the connecting ring 130 to the piezoelectric ceramic inside the fixture body 110 through the round rod at the bottom;

[0066] S2, then, insert the sleeve rods 430 in the plurality of extension devices 400 into the outer ring body 120 through the through holes 121, and sleeve the sleeve rods 430 on the outer side of the protruding rods 140, and then weld the protruding blocks 440 to the outer side wall of the sleeve rods 430;

[0067] S3, then, place the toggle ring 341 in the toggle portion 340 inside the outer ring body 120, ensure that the plurality of protruding rods 140 extend into the plurality of arc-shaped grooves 3410, and insert the rotating shaft 320 into the interior of the fixing body 110;

[0068] S4, then, the two shaft teeth 330 are clamped and fixed on the outer wall of the rotating shaft 320 to ensure that the shaft teeth 330 are meshed with the inner ring teeth 342;

[0069] S5. Afterwards, the upper and lower sealing covers 210 are respectively clamped and fixed on the outer wall of the upper outer ring body 120, and the connection between the inner through hole of the sealing cover 210 and the inner ring body 150 is sealed by a sealing ring;

[0070] S6. Subsequently, the arc scraper 250 is clamped and fixed on the outer wall of the rotating ring 220 through two connecting rods 240, and the driving motor 310 is coaxially connected with the rotating shaft 320, and then the motor cover 230 is threadedly connected to the top surface of the sealing cover 210.

[0071] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the specification and its equivalents.

Claims

1. An underwater acoustic communication transducer structure with a self-cleaning function, comprising a transducer device, the transducer device comprising a fixture body, a connecting ring for connecting to a piezoelectric ceramic inside the fixture body, a plurality of convex rods regularly distributed on the outer ring wall of the connecting ring, and a through line arranged on the top surface of the fixture body, a plurality of regularly distributed strip grooves are opened on the outer wall of the fixture body, a plurality of regularly distributed through holes are opened on the outer wall of the outer ring body, and the number of the convex rods and the through holes is the same and the positions correspond one to one; Features: The outer side of the energy conversion device is provided with a jacket device, a driving device arranged on the inner side of the jacket device, and a plurality of extension devices regularly distributed on the outer side of the energy conversion device; The outer jacket device includes a pair of sealing covers symmetrically arranged in the upper and lower parts, a rotating ring rotatably connected to the outer side of the sealing covers, and a plurality of arc-shaped scrapers rotating together with the rotating ring. The arc-shaped scrapers rotate when subjected to the force of the water flow, thereby preventing plankton, silt and loose attachments from being deposited on the surface of the fixing body, thereby playing a preventive cleaning role. The driving device comprises a driving motor, a rotating shaft rotating with the output shaft of the driving motor, and a pair of symmetrically distributed toggling parts; the toggling parts comprise a toggling ring and inner ring teeth arranged on the inner ring wall of the toggling ring, and a plurality of regularly distributed arc grooves are opened on the top surface of the toggling ring; The extending device includes a pair of parallel arc strips, a plurality of thin strips connected between the two arc strips, a sleeve rod arranged on the inner ring wall of the arc strip, and a protrusion arranged at the end of the sleeve rod. The thin strip is integrally formed with the upper and lower arc strips, and the size of the thin strip is adapted to the size of the strip groove. The sleeve rod is welded and fixed to the arc strip and slidably connected to the inside of the through hole. The protrusion is integrally formed with the sleeve rod and the end thereof extends to the inside of the arc groove. When the toggle part rotates, the contact position of the protrusion with the wall of the arc groove is changed, thereby driving the arc strip to move outward, and then directly contacting the attachment on the surface of the fixture body through the thin strip and applying mechanical force to peel the attachment from the surface of the fixture body, thereby effectively dealing with the stubborn attachment of barnacles. When the arc scraper rotates, it will conflict with the plurality of thin strips. After the protruding rod transmits the vibration of the pressed ceramic to the plurality of thin strips, the vibration energy is transmitted to the attachment through the plurality of thin strips, and the biological adhesion structure inside the attachment is destroyed by high-frequency vibration, so that it is completely separated.

2. The underwater acoustic communication transducer structure with self-cleaning function according to claim 1, characterized in that: The energy conversion device further comprises an outer ring body arranged at the upper and lower ends of the fixing body and an inner ring body arranged inside the outer ring body.

3. The underwater acoustic communication transducer structure with self-cleaning function according to claim 2 is characterized in that: The outer ring body and the inner ring body are both welded and fixed to the fixture body.

4. The underwater acoustic communication transducer structure with self-cleaning function according to claim 3 is characterized in that: The connecting ring is fixedly connected with the piezoelectric ceramic inside the fixing body through the round rod at the bottom, and the convex rod is fixedly welded on the outer side wall of the connecting ring.

5. The underwater acoustic communication transducer structure with self-cleaning function according to claim 4, characterized in that: The sealing cover is clamped and fixed on the outer side wall of the outer ring body. A limiting groove with an L-shaped longitudinal section is provided on the outer side ring wall of the sealing cover. The rotating ring is rotatably connected to the inside of the limiting groove.

6. The underwater acoustic communication transducer structure with self-cleaning function according to claim 5, characterized in that: A motor cover is clamped and fixed on the top surface of the sealing cover, and a connecting rod is clamped between the outer side walls of the two rotating rings and the arc-shaped scraper.

7. The underwater acoustic communication transducer structure with self-cleaning function according to claim 6, characterized in that: The driving motor is clamped and fixed inside the sealing cover located above, the rotating shaft is rotatably connected to the inside of the fixing body, the rotating shaft is coaxially connected to the output shaft of the driving motor, and a pair of parallel shaft teeth are clamped and fixed on the outer wall of the rotating shaft.

8. The underwater acoustic communication transducer structure with self-cleaning function according to claim 7, characterized in that: The toggle ring is rotatably connected to the inner ring wall of the outer ring body, the inner ring teeth are welded and fixed to the toggle ring, and the inner ring teeth are meshed with the shaft teeth.

9. A method for manufacturing an underwater acoustic communication transducer with a self-cleaning function, using the underwater acoustic communication transducer structure with a self-cleaning function according to claim 8, characterized in that: The following steps are involved: S1. First, place the preliminarily processed fixture body on the assembly table, and fix the connecting ring to the piezoelectric ceramic inside the fixture body through the round rod at the bottom; S2, then, insert the sleeve rods in the plurality of extension devices into the inner part of the outer ring body through the through holes, and sleeve the sleeve rods on the outer side of the protruding rods, and then weld and fix the protruding blocks on the outer side walls of the sleeve rods; S3, then, place the toggle ring in the toggle part inside the outer ring body, ensure that the plurality of protruding rods extend into the interior of the plurality of arc-shaped grooves respectively, and insert the rotating shaft into the interior of the fixing body; S4. Then, clamp and fix the two shaft teeth on the outer wall of the rotating shaft to ensure that the shaft teeth are meshed with the inner ring teeth; S5, then, the upper and lower sealing covers are respectively clamped and fixed on the outer side wall of the upper outer ring body, and the connection between the inner through hole of the sealing cover and the inner ring body is sealed by a sealing ring; S6. Subsequently, the arc-shaped scraper is clamped and fixed on the outer wall of the rotating ring through two connecting rods, and the driving motor is coaxially connected to the rotating shaft, and the motor cover is threadedly connected to the top surface of the sealing cover.

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