Self-pressure-maintaining waterproof permanent magnet motor

Abstract

The invention discloses a self-pressure-maintaining waterproof permanent magnet motor, and relates to the technical field of waterproof motors. Comprising a waterproof mounting piece, and a sealing output part is mounted on the waterproof mounting piece; a packing piece is mounted on the sealed output part; the packing piece is used for sliding on the sealed output part; the sealing output part is used for sealing the waterproof mounting piece; an output control piece is installed on the sealing output part and used for driving the packing piece to move. A pressure detection piece is mounted in the closed waterproof mounting piece; the pressure detection piece is used for detecting the sealing performance; the front section of the closed cylinder can extend out when the front section is abraded due to long-term use, the sealing service cycle is prolonged, and when the closed cylinder extends out, the cavity ring can be used for scraping the rotating shaft; the problems that according to a shaft seal of an existing waterproof permanent magnet motor, a shaft seal ring cannot be conveniently and rapidly replaced underwater, the service cycle is short, cleaning is not convenient, and automatic pressure supply for leakage prevention after leakage occurs is not convenient to achieve are solved.

Description

Technical Field

[0001] The invention relates to the technical field of waterproof motors, and in particular to a self-pressure-maintaining waterproof permanent magnet motor. Background Art

[0002] Permanent magnet motors have high-quality permanent magnet poles on the rotor, with high power per unit weight. As an important driving device, the motor is used in a complex environment. Among them, waterproof motors are mainly used in water-related environments. Traditional waterproof motors mainly use the shaft seal ring between the motor housing and the output shaft for sealing. The junction box also adopts special protection measures, such as using waterproof materials or adding waterproof covers and waterproof connectors to the junction box to prevent moisture from entering. Due to its relatively simple structure and low cost, it is widely used. At present, the shaft seals of waterproof permanent magnet motors are mostly disposable. As the motor output shaft continues to rotate and the output shaft is eccentrically loaded Under extrusion, the motor shaft is prone to wear and tear, and the shaft seal will also age and wear, which will easily cause leakage. It is not convenient to quickly replace the shaft seal ring underwater. At the same time, the long-term rotation and friction of the motor output shaft will cause the lubricating oil to deteriorate, affecting the service life and making it inconvenient to clean. Traditional waterproof motors are not convenient for automatically detecting leakage and controlling to cut off power. Continuous power output from the output shaft will aggravate leakage. At the same time, the internal oil pressure of the motor should not be too high during actual work. Excessive oil pressure will easily cause problems such as increased motor running resistance. It is not convenient to automatically apply pressure to prevent leakage after leakage occurs. If the staff does not remove the motor from underwater in time, it will cause hidden dangers such as motor short circuit corrosion.

[0003] To this end, we propose a self-pressure-maintaining and waterproof permanent magnet motor. Summary of the invention

[0004] The purpose of the present invention is to provide a self-pressure-maintaining waterproof permanent magnet motor to solve the problems raised in the above background technology that the shaft seal of the current waterproof permanent magnet motor is not convenient for rapid underwater replacement of the shaft seal ring, has a short service life, is not convenient for cleaning, and is not convenient for automatic pressure application to prevent leakage after leakage occurs.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a self-pressure-maintaining waterproof permanent magnet motor, comprising a waterproof mounting part, on which a sealed output part is installed; a sealing part is installed on the sealed output part; the sealing part is used to slide on the sealed output part; the sealed output part is used to close the waterproof mounting part; an output control part is installed on the sealed output part, and the output control part is used to drive the sealing part to move; a pressure detection part is installed inside the closed waterproof mounting part; the pressure detection part is used to detect the sealing performance; a connecting shaft part is installed inside the waterproof mounting part; the connecting shaft part is connected to the sealed output part; a pressure supply part is installed on the waterproof mounting part; the pressure supply part is used to pressurize the inside of the waterproof mounting part; the waterproof mounting part comprises: a waterproof shell, a pressure propulsion hole and a safety sealing ring, four pressure propulsion holes are opened on the waterproof shell, and the four pressure propulsion holes are respectively connected to the inside of the waterproof shell; a safety sealing ring is fixedly installed inside the waterproof shell, and the inner side of the safety sealing ring is a slope structure.

[0006] Preferably, the sealing member comprises: a winding rubber ring, a closing cylinder and a cavity ring, the winding rubber ring is located inside the motor end cover; the winding rubber ring is located outside the rotating shaft; a closing cylinder is wound on the winding rubber ring; the closing cylinder is sleeved on the outside of the rotating shaft; a row of cavity rings are respectively provided on the inner and outer sides of the closing cylinder; the cavity ring is an arc-shaped rubber structure; the inner cavity ring fits tightly against the outer side of the rotating shaft; the outer cavity ring fits tightly against the inner side of the output cylinder; the interval between the two rows of cavity rings is used to form a sealed cavity; the inner cavity ring is used to scrape the rotating shaft.

[0007] Preferably, the pressure detection component includes: a sliding shell, a detection piston, a safety spring and a micro switch, the sliding shell is fixedly installed inside the waterproof shell; the detection piston is slidably installed inside the sliding shell; the safety spring is sleeved inside the sliding shell, and the end of the safety spring is fixedly installed on the inner side of the sliding shell; the other end of the safety spring is connected to the inner side of the detection piston; a micro switch is fixedly installed on the inner side of the detection piston, and the micro switch is squeezed and fitted on the inner side of the sliding shell; the micro switch is electrically connected to the closed electromagnet, the indicator light and the limit electromagnet.

[0008] Preferably, the output control component includes: a discharge connecting ring and a driving threaded rod, the discharge connecting ring is fixedly mounted on the end of the output cylinder by a circle of bolts; a circle of driving threaded rod is rotatably mounted on the discharge connecting ring, and the ends of the circle of driving threaded rod are respectively rotatably connected to the output cylinder; the other ends of the circle of driving threaded rods are respectively provided with gears; the outer sides of the circle of driving threaded rods are provided with spiral grooves; the circle of driving threaded rods are respectively tightly fitted with the closed cylinder, and a row of the cavity rings on the outer side are respectively located in the spiral grooves on the driving threaded rods; the circle of driving threaded rods is used to drive the closed cylinder to move.

[0009] Preferably, the waterproof mounting part also includes: a closed electromagnet, a limit electromagnet, a stator winding, a rotor body and an indicator light, the closed electromagnet is fixedly embedded on the inner side of the safety closed ring; the limit electromagnet is fixedly embedded inside the safety closed ring; the stator winding is fixedly sleeved inside the waterproof shell; the rotor body is rotatably installed inside the waterproof shell; the rotor body is located inside the stator winding; the waterproof shell is filled with oil; the shaft end of the rotor body is provided with a hexagonal hole; and an indicator light is embedded on the waterproof shell.

[0010] Preferably, the output control component further comprises: a synchronous gear ring, on which the discharge connecting ring is rotatably mounted; meshing teeth are arranged on the inner side of the synchronous gear ring; and the inner side of the synchronous gear ring meshes with a gear on a circle of driving threaded rod.

[0011] Preferably, the connecting shaft comprises: a connecting shaft, a closing plug and a connecting shaft spring, the end of the connecting shaft is a sloped structure; the connecting shaft is inserted into the hexagonal hole at the end of the rotor main shaft; the other end of the connecting shaft is inserted into the hexagonal hole at the end of the rotating shaft; a closing plug is fixedly sleeved on the connecting shaft; the closing plug is used to close and fit the safety closing ring; the closing electromagnet magnetically attracts the closing plug; a connecting shaft is sleeved with a connecting shaft spring, and the connecting shaft spring is located between the closing plug and the rotating shaft.

[0012] Preferably, the sealed output part includes: a motor end cover, an output cylinder, an oil filling pipe, a sealing rubber ring, a bearing and a rotating shaft, the motor end cover is fixedly installed on the end of the waterproof shell by bolts; the output cylinder is fixedly installed on the motor end cover; a sealing rubber ring is fixedly installed on the back of the motor end cover; the outer ring of the bearing is fixedly sleeved on the motor end cover; the inner ring of the bearing is fixedly sleeved on the rotating shaft; a hexagonal hole is provided at the end of the rotating shaft; the rotating shaft is sleeved on the inner side of the sealing rubber ring; lubricating oil is stored inside the motor end cover; a gap is provided between the inner side of the output cylinder and the outer side of the rotating shaft; an oil filling pipe is fixedly installed on the motor end cover, and a valve is provided on the oil filling pipe.

[0013] Preferably, the pressure-supplying part includes: a sliding sleeve, a boosting piston shaft and a boosting spring, the sliding sleeve is slidably sleeved on the front side of the waterproof shell; four boosting piston shafts are fixedly mounted on the sliding sleeve, and the four boosting piston shafts are sealingly sleeved in four pressure thrust holes; the boosting piston shaft is used to pressurize the oil inside the waterproof shell; the boosting spring is sleeved inside the waterproof shell; the boosting spring is located between the sliding sleeve and the motor end cover.

[0014] Preferably, the pressure-applying part also includes: a safety positioning column and a positioning tension spring, four safety positioning columns are slidably inserted inside the waterproof shell, and the ends of the four safety positioning columns are respectively inserted into the inner side of the sliding sleeve; a positioning tension spring is sleeved on the safety positioning column, and the end of the positioning tension spring is connected to the bottom of the safety positioning column; the other end of the positioning tension spring is connected to the inner side of the waterproof shell; the limiting electromagnet is used to magnetically attract the safety positioning column.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention adopts a sealing piece, and can use the interval between two rows of cavity rings to form a sealed cavity to ensure the sealing effect. The method of winding the sealing cylinder on the winding rubber ring can realize sliding extension on the rotating shaft. It can be extended when the front section of the sealing cylinder is worn due to long-term use, thereby improving the service life of the sealing cylinder. When the sealing cylinder is extended, the cavity ring can be used to scrape the rotating shaft to play a cleaning role, which can further ensure the smoothness of the rotating shaft.

[0016] The use of a synchronous gear ring can realize the synchronous drive setting of the driving threaded rod, control the extension of the sealing tube, ensure the adjustment flexibility, and make the operation more convenient for the staff. At the same time, this structure can be carried out underwater when controlling the extension of the sealing tube, and no leakage will occur when the sealing tube is extended.

[0017] The use of pressure detection components can realize rapid detection of the internal pressure of the waterproof shell. The sealing performance is reflected by pressure, and the structural detection is direct and rapid. When leakage occurs, the connection between the rotating shaft and the rotor body is quickly disconnected to avoid wear of the rotating shaft or eccentric load on the output end of the rotating shaft. At this time, the fit between one side of the rotating shaft and the cavity ring is not good, causing the leakage to be aggravated. The separation can be controlled in time, and the sealing plug can be controlled to fit on the side of the safety sealing ring for safety sealing.

[0018] The pressure-supplying part can maintain the internal pressure of the waterproof shell at normal pressure when the rotor body is operating normally, without affecting the normal rotation of the rotor body, and without generating excessive resistance and overheating. After the waterproof shell leaks, the booster piston shaft is automatically controlled to move, increasing the internal pressure of the waterproof shell to achieve pressurized protection. Pressure is used to prevent moisture from invading the waterproof shell, further ensuring the waterproof effect of the structure when used underwater, and also assisting in using pressure to increase the fit between the sealing plug and the insurance sealing ring, thereby improving the waterproof effect of the structure. The structure has multiple protections to ensure waterproof and anti-corrosion effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a schematic diagram of the overall structure of a self-pressure-maintaining and waterproof permanent magnet motor of the present invention.

[0020] Figure 2 It is a cross-sectional view of the local structure of a self-pressure-maintaining and waterproof permanent magnet motor of the present invention.

[0021] Figure 3 It is a schematic diagram of the position of the pressure propulsion hole of the present invention.

[0022] Figure 4 This is a cross-sectional view of the waterproof mounting structure of the present invention.

[0023] Figure 5 It is a cross-sectional view of the sealing member structure of the present invention.

[0024] Figure 6 For the present invention Figure 2 Enlarged view of the structure of the middle C region.

[0025] Figure 7 It is a schematic diagram of the structure of the sealed output part of the present invention.

[0026] Figure 8 For the present invention Figure 3 A magnified view of the structure in region D.

[0027] Fig. 9 For the present invention Figure 5 Enlarged view of the structure of region E in the middle.

[0028] Fig.10 It is a schematic diagram of the structure of the shaft connecting part of the present invention.

[0029] Fig.11 For the present invention Figure 2 A magnified view of the structure of the middle F region.

[0030] Fig.12 It is a schematic structural diagram of the pressure supply unit of the present invention.

[0031] In the figure: 1. Waterproof mounting part; 101. Waterproof housing; 1011. Pressure push hole; 102. Safety sealing ring; 103. Sealing electromagnet; 1031. Limiting electromagnet; 104. Stator winding; 105. Rotor body; 106. Indicator light; 2. Sealed output part; 201. Motor end cover; 2011. Output cylinder; 2012. Oil filling pipe; 202. Sealing rubber ring; 203. Bearing; 204. Rotating shaft; 3. Packing; 301. Winding rubber ring; 302. Sealing cylinder ; 3021, cavity ring; 4, output control part; 401, discharge connecting ring; 402, driving threaded rod; 403, synchronous gear ring; 5, pressure detection part; 501, sliding shell; 502, detection piston; 503, safety spring; 504, micro switch; 6, connecting shaft; 601, connecting shaft; 602, closing plug; 603, connecting shaft spring; 7, pressure supply part; 701, sliding sleeve; 702, booster piston shaft; 703, booster spring; 704, safety positioning column; 705, positioning tension spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of 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 of 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.

[0033] Example 1: Please refer to Figure 1-Figure 12 As shown: The present invention provides a technical solution: a self-pressure-maintaining waterproof permanent magnet motor, comprising a waterproof mounting member 1, a sealed output part 2 is mounted on the waterproof mounting member 1; a sealing member 3 is mounted on the sealed output part 2; the sealing member 3 is used to slide on the sealed output part 2; the sealed output part 2 is used to seal the waterproof mounting member 1; an output control member 4 is mounted on the sealed output part 2, and the output control member 4 is used to drive the sealing member 3 to move; a pressure detection member 5 is mounted inside the sealed waterproof mounting member 1; the pressure detection member 5 is used to detect the sealing performance; the waterproof mounting member 1 is mounted inside There is a coupling part 6; the coupling part 6 is connected to the sealing output part 2; a pressure-supplying part 7 is installed on the waterproof mounting part 1; the pressure-supplying part 7 is used to pressurize the inside of the waterproof mounting part 1; the waterproof mounting part 1 includes: a waterproof shell 101, a pressure pushing hole 1011 and a safety sealing ring 102, four pressure pushing holes 1011 are opened on the waterproof shell 101, and the four pressure pushing holes 1011 are respectively connected to the inside of the waterproof shell 101; a safety sealing ring 102 is fixedly installed inside the waterproof shell 101, and the inner side of the safety sealing ring 102 is a slope structure.

[0034] The waterproof mounting part 1 further comprises: a closed electromagnet 103, a limit electromagnet 1031, a stator winding 104, a rotor body 105 and an indicator light 106. The closed electromagnet 103 is fixedly embedded inside the safety closed ring 102; the limit electromagnet 1031 is fixedly embedded inside the safety closed ring 102; the stator winding 104 is fixedly sleeved inside the waterproof housing 101; the rotor body 105 is rotatably installed inside the waterproof housing 101; the rotor body 105 is located inside the stator winding 104; the waterproof housing 101 is filled with The rotor body 105 is filled with oil; the shaft end is provided with a hexagonal hole; the waterproof housing 101 is embedded with an indicator light 106; the sealed output part 2 includes: a motor end cover 201, an output tube 2011, an oil filling tube 2012, a sealing rubber ring 202, a bearing 203 and a rotary shaft 204, and the motor end cover 201 is fixedly mounted on the end of the waterproof housing 101 by bolts; the motor end cover 201 is fixedly mounted with an output tube 2011; the back of the motor end cover 201 is fixedly mounted with a sealing rubber ring 202; the motor end cover 201 is fixedly sleeved with The outer ring of the bearing 203; the inner ring of the bearing 203 is fixedly sleeved with a rotating shaft 204; the end of the rotating shaft 204 is provided with a hexagonal hole; the rotating shaft 204 is sleeved on the inner side of the sealing rubber ring 202; the motor end cover 201 stores lubricating oil; a gap is provided between the inner side of the output cylinder 2011 and the outer side of the rotating shaft 204; an oil filling pipe 2012 is fixedly installed on the motor end cover 201, and a valve is provided on the oil filling pipe 2012; the sealing member 3 includes: a winding rubber ring 301, a sealing cylinder 302 and a cavity ring 3021, and the winding rubber ring 3 01 is located inside the motor end cover 201; the winding rubber ring 301 is located outside the rotating shaft 204; a closed cylinder 302 is wound on the winding rubber ring 301; the closed cylinder 302 is sleeved on the outside of the rotating shaft 204; a row of cavity rings 3021 are respectively provided on the inner and outer sides of the closed cylinder 302; the cavity rings 3021 are arc-shaped rubber structures; the inner cavity ring 3021 fits tightly against the outer side of the rotating shaft 204; the outer cavity ring 3021 fits tightly against the inner side of the output cylinder 2011; the interval between the two rows of cavity rings 3021 is used to form a sealed cavity;The inner cavity ring 3021 is used to scrape the rotating shaft 204. The sealing output part 2 is used in conjunction with the sealing member 3. The interval between the two rows of cavity rings 3021 can be used to form a sealed cavity, thereby ensuring the sealing effect and reducing the probability of leakage. At the same time, the sealing cylinder 302 is rolled up on the rolled rubber ring 301, so that it can slide and extend on the rotating shaft 204. The position where the front section of the sealing cylinder 302 fits the rotating shaft 204 can be extended when it is worn out after long-term use. This can facilitate the rapid replacement of the use position of the sealing cylinder 302. The structure is simple and the sealing effect can be improved. The use cycle of the closed cylinder 302 can avoid the wear of the rotating shaft 204 and the closed cylinder 302 after long-term use, which may cause the sealing failure. The slidable and replaceable closed cylinder 302 used in this structure can facilitate the replacement of a new closed cylinder 302, maintain the rubber elasticity of the use surface of the closed cylinder 302, and compensate for the wear of the rotating shaft 204. At the same time, when the closed cylinder 302 is extended, the cavity ring 3021 can be used to scrape the rotating shaft 204 to play a cleaning role, which can further ensure the smoothness of the rotating shaft 204 and help maintain the performance of the lubricating oil and replace the deteriorated lubricating oil.

[0035] The output control member 4 comprises: a discharge connection ring 401 and a driving threaded rod 402, wherein the discharge connection ring 401 is fixedly mounted on the end of the output cylinder 2011 by a circle of bolts; a circle of driving threaded rod 402 is rotatably mounted on the discharge connection ring 401, and the ends of the circle of driving threaded rod 402 are respectively rotatably connected to the output cylinder 2011; a circle of driving threaded rod 402 is respectively provided with gears at the other end; a circle of driving threaded rod 402 is provided with a spiral groove on the outer side; a circle of driving threaded rod 402 is respectively tightly fitted to the closed cylinder 302, and a row of cavity rings 3021 on the outer side are respectively located in the spiral grooves on the driving threaded rod 402; a circle of driving threaded rod 402 is used to drive the closed cylinder 302 to move; the output control member 4 also comprises: a synchronous gear ring 403, wherein a synchronous gear ring 403 is rotatably mounted on the discharge connection ring 401; meshing teeth are provided on the inner side of the synchronous gear ring 403; the inner side of the synchronous gear ring 403 is meshed with The gear on the one-circle driving threaded rod 402 can realize the synchronous driving setting of the driving threaded rod 402 by using the synchronous gear ring 403, and control the extension of the sealing tube 302 to ensure the adjustment flexibility and make the operation more convenient for the staff. At the same time, the present structure can be carried out underwater when controlling the extension of the sealing tube 302, and no leakage will occur when the sealing tube 302 is extended, ensuring that the motor can operate without stopping when extending the sealing tube 302 for sealing adjustment. The structure is more reasonable and there is no need to disassemble the motor. The engagement control can be achieved by using the thread of the driving threaded rod 402. By rotating the synchronous gear ring 403, the one-circle driving threaded rod 402 can be engaged and driven to rotate. At this time, the thread groove of the one-circle driving threaded rod 402 will rotate and toggle the outer cavity ring 3021, so that the sealing tube 302 can be pulled out and replaced. The sealing tube 302 wound on the winding rubber ring 301 can meet the needs of multiple uses.

[0036] Among them, the pressure detection component 5 includes: a sliding shell 501, a detection piston 502, a safety spring 503 and a micro switch 504. The sliding shell 501 is fixedly installed inside the waterproof shell 101; the detection piston 502 is slidably installed inside the sliding shell 501; the safety spring 503 is sleeved inside the sliding shell 501, and the end of the safety spring 503 is fixedly installed on the inner side of the sliding shell 501; the other end of the safety spring 503 is connected to the inner side of the detection piston 502; the micro switch 504 is fixedly installed on the inner side of the detection piston 502, and the micro switch 504 is squeezed and fitted on the inner side of the sliding shell 501; the micro switch 504 is electrically connected to the closed electromagnet 103, the indicator light 106 and the limit electromagnet 1031; the shaft connecting part 6 includes: a connecting The connecting shaft 601, the closing plug 602 and the connecting shaft spring 603, the end of the connecting shaft 601 is an inclined structure; the connecting shaft 601 is inserted into the hexagonal hole at the end of the rotor body 105; the other end of the connecting shaft 601 is inserted into the hexagonal hole at the end of the rotating shaft 204; the connecting shaft 601 is fixedly sleeved with a closing plug 602; the closing plug 602 is used to close and fit the insurance closing ring 102; the closing electromagnet 103 magnetically attracts the closing plug 602; the connecting shaft 601 is sleeved with a connecting shaft spring 603, and the connecting shaft spring 603 is located between the closing plug 602 and the rotating shaft 204. The pressure detection component 5 can be used to quickly detect the internal pressure of the waterproof shell 101. Through the pressure response sealing performance, the structure detection is direct and fast, and at the same time, it cooperates with the connecting shaft 601. The shaft portion 6 can quickly disconnect the connection between the rotating shaft 204 and the rotor body 105 when leakage occurs, so as to avoid the rotor body 105 continuing to control the rotation of the rotating shaft 204 after leakage. When the rotating shaft 204 is worn or the output end load of the rotating shaft 204 is eccentrically loaded, the fit between one side of the rotating shaft 204 and the cavity ring 3021 is not good, causing the leakage to be aggravated. The present structure can control the separation in time, and can control the sealing plug 602 to fit on the side of the safety sealing ring 102 for safety sealing, and quickly isolate and prevent moisture from corroding the rotor body 105 and the stator winding 104. The control is more direct. If there is a leakage outside the rotating shaft 204, the internal pressure of the waterproof shell 101 is reduced. Under the pressure of the safety spring 503, the detection piston 502 will drive the microswitch 504 to move inward, and the microswitch 504 is no longer squeezed by the sliding shell 501. At this time, the closing electromagnet 103 will electromagnetically absorb the closing plug 602. At this time, the closing plug 602 will fit on the side of the safety closing ring 102 for safety sealing. During the process, the connecting shaft 601 is also driven to move. At this time, the connecting shaft 601 will be pulled out from the hexagonal hole on the rotor body 105 to achieve separation and disconnect the connection between the rotor body 105 and the rotating shaft 204. The hexagonal structure of the connecting shaft 601 can be used for power transmission connection without affecting sliding adjustment. The inclined surface structure at the end of the connecting shaft 601 can facilitate insertion into the rotor body 105.

[0037] Embodiment 2, on the basis of embodiment 1, the pressure supply part 7 comprises: a sleeve 701, a booster piston shaft 702 and a booster spring 703, the sleeve 701 is slidably sleeved on the front side of the waterproof housing 101; four booster piston shafts 702 are fixedly mounted on the sleeve 701, and the four booster piston shafts 702 are sealed and sleeved in four pressure propulsion holes 1011; the booster piston shaft 702 is used to pressurize the oil inside the waterproof housing 101; the booster spring 703 is sleeved inside the waterproof housing 101; the booster spring 703 is located between the sleeve 701 and the motor end cover 201; the pressure supply part 7 also comprises: a safety positioning column 704 and a positioning tension spring 705, Four insurance positioning posts 704 are slidably inserted inside the waterproof shell 101, and the ends of the four insurance positioning posts 704 are respectively inserted into the inner side of the sliding sleeve 701; a positioning tension spring 705 is sleeved on the insurance positioning post 704, and the end of the positioning tension spring 705 is connected to the bottom of the insurance positioning post 704; the other end of the positioning tension spring 705 is connected to the inner side of the waterproof shell 101; the limit electromagnet 1031 is used to magnetically attract the insurance positioning post 704, and the pressure supply part 7 can be used to keep the interior of the waterproof shell 101 at normal pressure when there is no leakage in the waterproof shell 101 and the rotor body 105 operates normally, without affecting the normal rotation of the rotor body 105 and generating too much resistance and overheating. After the waterproof shell 101 leaks, the booster piston shaft 702 can be automatically controlled to move, increase the internal pressure of the waterproof shell 101, and realize pressurization protection. By increasing the internal pressure of the waterproof shell 101, the pressure can be used to prevent moisture from invading the waterproof shell 101, and the internal safety of the waterproof shell 101 can be maintained, further ensuring the waterproof effect of the structure when used underwater, and at the same time ensuring the normal operation of the rotor body 105. There is no need to charge excessive pressure when the inside of the waterproof shell 101 is normally sealed. The structure control is simple. After the pressure detection component 5 detects the pressure relief inside the waterproof shell 101, the micro switch 504 does not When squeezed by the sliding shell 501 again, the indicator light 106 can be powered on to light up as a prompt, and the microswitch 504 will also control the limit electromagnet 1031 to magnetically attract the four safety positioning columns 704, and the limit sliding sleeve 701 will no longer be inserted. Under the squeezing of the booster spring 703, the booster piston shaft 702 can push the oil in the pressure push hole 1011 into the waterproof shell 101 to increase the pressure, thereby achieving pressure-maintaining protection. The staff can then take out the waterproof shell 101 from underwater, and at the same time, it also assists in using pressure to increase the fit between the sealing plug 602 and the safety sealing ring 102, thereby improving the waterproof effect of the structure. The structure has multiple protections to ensure waterproof and anti-corrosion effects.

[0038] The working principle of this embodiment is as follows: first, after the oil filling pipe 2012 is connected to the oil pump and oil is added, the valve on the oil filling pipe 2012 is tightened and closed. There will be a certain pressure inside the waterproof shell 101, which will press the detection piston 502 to squeeze the safety spring 503 and then press the micro switch 504. At this time, there is pressure inside the waterproof shell 101 that does not affect the normal operation of the rotor body 105. Once there is a leak on the outside of the rotating shaft 204, the pressure inside the waterproof shell 101 will decrease. Under the squeezing of the safety spring 503, the detection piston 502 will drive the micro switch 504 to move inward, and the micro switch 504 will no longer be squeezed by the sliding shell 501. At this time, the closing electromagnet 103 will pass the electromagnetic suction sealing plug 602. At this time, the sealing plug 602 will fit on the side of the safety sealing ring 102 for safety sealing. In the process, the connecting shaft 601 is also driven to move. At this time, the connecting shaft 601 will be pulled out from the hexagonal hole on the rotor body 105 to achieve separation and disconnect the rotor body 105 from the rotating shaft 204. The connection between them reduces leakage. After the pressure detection component 5 detects the pressure relief inside the waterproof shell 101, when the micro switch 504 is no longer squeezed by the sliding shell 501, the indicator light 106 lights up to prompt, and the micro switch 504 will also control the limit electromagnet 1031 to magnetically attract the four insurance positioning columns 704, and the positioning tension spring 705 is stretched. At this time, the four insurance positioning columns 704 are separated from the sliding sleeve 701 and are no longer plugged into the limit sliding sleeve 701. Under the squeezing of the booster spring 703, the booster piston shaft 702 can push the oil in the pressure push hole 1011 into the waterproof shell 101 to increase the pressure and achieve pressure maintenance. At this time, the staff can take out the waterproof shell 101 from underwater, and at the same time, the pressure is also used to assist in increasing the fit between the closing plug 602 and the insurance closing ring 102. Even if there is a gap between the closing plug 602 and the insurance closing ring 102, the oil inside the waterproof shell 101 can be squeezed and discharged outward under the action of pressure, further preventing external moisture from entering the waterproof shell 101.

[0039] During daily maintenance, the synchronous gear ring 403 can be rotated regularly to engage and drive a circle of driving threaded rod 402 to rotate. At this time, the thread groove of a circle of driving threaded rod 402 will rotate and move the outer cavity ring 3021 to pull out the closing cylinder 302. The exposed closing cylinder 302 can be cut off and directly removed using a tool for replacement. When the closing cylinder 302 is moved and pulled out, the deteriorated oil attached to the rotating shaft 204 can be scraped off. At the same time, the lubricating oil stored in the motor end cover 201 will also be attached to the cavity ring 3021. As the cavity ring 3021 moves outward, it is smeared on the rotating shaft 204, thereby ensuring the sealing of the rotating shaft 204. When the rotor body 105 is controlled to rotate by the stator winding 104, the rotating shaft 204 can be driven to rotate normally.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-pressure-maintaining waterproof permanent magnet motor, comprising a waterproof mounting member (1), wherein a sealed output portion (2) is mounted on the waterproof mounting member (1); characterized in that: A sealing member (3) is installed on the sealing output part (2); the sealing member (3) is used to slide on the sealing output part (2); the sealing output part (2) is used to seal the waterproof mounting member (1); An output control component (4) is installed on the sealing output portion (2), and the output control component (4) is used to drive the sealing component (3) to move; A pressure detection component (5) is installed inside the closed waterproof installation component (1); the pressure detection component (5) is used to detect the sealing performance; A coupling portion (6) is installed inside the waterproof mounting member (1); the coupling portion (6) is connected to the sealing output portion (2); A pressure-applying portion (7) is installed on the waterproof mounting component (1); the pressure-applying portion (7) is used to apply pressure to the interior of the waterproof mounting component (1); The waterproof mounting member (1) comprises: a waterproof shell (101), a pressure propulsion hole (1011) and a safety sealing ring (102); the waterproof shell (101) is provided with four pressure propulsion holes (1011), and the four pressure propulsion holes (1011) are respectively connected to the interior of the waterproof shell (101); the safety sealing ring (102) is fixedly installed inside the waterproof shell (101), and the inner side of the safety sealing ring (102) is a slope structure.

2. A self-pressure-maintaining and waterproof permanent magnet motor according to claim 1, characterized in that: The waterproof mounting member (1) further comprises: a closed electromagnet (103), a limit electromagnet (1031), a stator winding (104), a rotor body (105) and an indicator light (106); the closed electromagnet (103) is fixedly embedded inside the safety closed ring (102); the limit electromagnet (1031) is fixedly embedded inside the safety closed ring (102); the stator winding (104) is fixedly sleeved inside the waterproof housing (101); the rotor body (105) is rotatably mounted inside the waterproof housing (101); the rotor body (105) is located inside the stator winding (104); the waterproof housing (101) is filled with oil; the shaft end of the rotor body (105) is provided with a hexagonal hole; and the indicator light (106) is embedded on the waterproof housing (101).

3. A self-pressure-maintaining and waterproof permanent magnet motor according to claim 2, characterized in that: The sealed output part (2) comprises: a motor end cover (201), an output tube (2011), an oil filling pipe (2012), a sealing rubber ring (202), a bearing (203) and a rotating shaft (204); the motor end cover (201) is fixedly mounted on the end of the waterproof housing (101) by means of bolts; the output tube (2011) is fixedly mounted on the motor end cover (201); the sealing rubber ring (202) is fixedly mounted on the back of the motor end cover (201); and the motor end cover (201) is fixedly sleeved with a The outer ring of the bearing (203) is fixedly sleeved with a rotating shaft (204) on the inner ring of the bearing (203); a hexagonal hole is provided at the end of the rotating shaft (204); the rotating shaft (204) is sleeved on the inner side of the sealing rubber ring (202); lubricating oil is stored inside the motor end cover (201); a gap is provided between the inner side of the output cylinder (2011) and the outer side of the rotating shaft (204); an oil filling pipe (212) is fixedly mounted on the motor end cover (201), and a valve is provided on the oil filling pipe (212).

4. A self-pressure-maintaining and waterproof permanent magnet motor according to claim 3, characterized in that: The sealing member (3) comprises: a rolled rubber ring (301), a sealing cylinder (302) and a cavity ring (3021); the rolled rubber ring (301) is located inside the motor end cover (201); the rolled rubber ring (301) is located outside the rotating shaft (204); a sealing cylinder (302) is rolled on the rolled rubber ring (301); the sealing cylinder (302) is sleeved on the outside of the rotating shaft (204); the sealing cylinder (302) 02) A row of cavity rings (3021) are respectively provided on the inner and outer sides; the cavity rings (3021) are arc-shaped rubber structures; the inner cavity rings (3021) are tightly fitted to the outer side of the rotating shaft (204); the outer cavity rings (3021) are tightly fitted to the inner side of the output tube (2011); the interval between the two rows of cavity rings (3021) is used to form a sealed cavity; the inner cavity ring (3021) is used to scrape the rotating shaft (204).

5. A self-pressure-maintaining and waterproof permanent magnet motor according to claim 4, characterized in that: The output control member (4) comprises: a discharge connection ring (401) and a driving threaded rod (402); the discharge connection ring (401) is fixedly mounted on the end of the output cylinder (2011) by a circle of bolts; a circle of driving threaded rods (402) is rotatably mounted on the discharge connection ring (401), and the ends of the circle of driving threaded rods (402) are respectively rotatably connected to the output cylinder (2011); a gear is respectively provided at the other end of the circle of driving threaded rods (402); a spiral groove is provided on the outer side of the circle of driving threaded rods (402); the circle of driving threaded rods (402) are respectively tightly fitted on the sealing cylinder (302), and a row of the cavity rings (3021) on the outer side are respectively located in the spiral grooves on the driving threaded rods (402); the circle of driving threaded rods (402) is used to drive the sealing cylinder (302) to move.

6. A self-pressure-maintaining and waterproof permanent magnet motor according to claim 5, characterized in that: The output control member (4) further comprises: a synchronous gear ring (403), the synchronous gear ring (403) being rotatably mounted on the discharge connection ring (401); meshing teeth being provided on the inner side of the synchronous gear ring (403); and the inner side of the synchronous gear ring (403) being meshed with a gear on a circle of the driving threaded rod (402).

7. The self-pressure-maintaining and waterproof permanent magnet motor according to claim 2, characterized in that: The pressure detection component (5) comprises: a sliding shell (501), a detection piston (502), a safety spring (503) and a micro switch (504); the sliding shell (501) is fixedly installed inside the waterproof shell (101); the detection piston (502) is slidably installed inside the sliding shell (501); the safety spring (503) is sleeved inside the sliding shell (501), and the end of the safety spring (503) is fixedly installed on the inner side of the sliding shell (501); the other end of the safety spring (503) is connected to the inner side of the detection piston (502); the micro switch (504) is fixedly installed on the inner side of the detection piston (502), and the micro switch (504) is pressed and fitted on the inner side of the sliding shell (501); the micro switch (504) is electrically connected to the closed electromagnet (103), the indicator light (106) and the limit electromagnet (1031).

8. The self-pressure-maintaining and waterproof permanent magnet motor according to claim 3, characterized in that: The connecting shaft (6) comprises: a connecting shaft (601), a closing plug (602) and a connecting shaft spring (603); the end of the connecting shaft (601) is an inclined surface structure; the connecting shaft (601) is inserted into a hexagonal hole at the end of the shaft of the rotor body (105); the other end of the connecting shaft (601) is inserted into a hexagonal hole at the end of the rotating shaft (204); a closing plug (602) is fixedly sleeved on the connecting shaft (601); the closing plug (602) is used to seal and fit the safety sealing ring (102); the closing electromagnet (103) magnetically attracts the closing plug (602); the connecting shaft (601) is sleeved with a connecting shaft spring (603), and the connecting shaft spring (603) is located between the closing plug (602) and the rotating shaft (204).

9. The self-pressure-maintaining and waterproof permanent magnet motor according to claim 3, characterized in that: The pressure supply part (7) comprises: a sliding sleeve (701), a pressure-boosting piston shaft (702) and a pressure-boosting spring (703); the sliding sleeve (701) is slidably sleeved on the front side of the waterproof housing (101); four pressure-boosting piston shafts (702) are fixedly mounted on the sliding sleeve (701), and the four pressure-boosting piston shafts (702) are sealingly sleeved in four pressure thrust holes (1011); the pressure-boosting piston shaft (702) is used to pressurize the oil inside the waterproof housing (101); the pressure-boosting spring (703) is sleeved inside the waterproof housing (101); and the pressure-boosting spring (703) is located between the sliding sleeve (701) and the motor end cover (201).

10. A self-pressure-maintaining and waterproof permanent magnet motor according to claim 9, characterized in that: The pressure-applying portion (7) further comprises: a safety positioning column (704) and a positioning tension spring (705); four safety positioning columns (704) are slidably inserted into the interior of the waterproof housing (101), and the ends of the four safety positioning columns (704) are respectively inserted into the inner side of the sliding sleeve (701); a positioning tension spring (705) is sleeved on the safety positioning column (704), and the end of the positioning tension spring (705) is connected to the bottom of the safety positioning column (704); the other end of the positioning tension spring (705) is connected to the inner side of the waterproof housing (101); and the limit electromagnet (1031) is used for magnetically attracting the safety positioning column (704).

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