Underwater motor with high sealing performance

Abstract

The utility model discloses an underwater motor with high sealing performance, which comprises a motor main body assembly, an underwater motor main body, a main shaft positioned on the same axis with the circle center of the underwater motor main body, and a sealing seat sleeved on the outer side of the main shaft and attached to the underwater motor main body, the sealing assembly comprises a sealing cover arranged on the outer side of the sealing seat in a sleeving mode, a water retaining cover arranged on the outer side of the main shaft in a sleeving mode, a first sealing ring embedded into the outer surface of the water retaining cover and a shielding ring arranged on the outer side of the water retaining cover in a sleeving mode, and a sealing protrusion embedded into the water retaining cover is arranged on the sealing cover; the underwater motor is provided with a design for guiding the direction of infiltrated water, the sealing protrusion and the water retaining cover are combined in a step shape, the infiltrated water slowly flows on the step-shaped combined end face through guiding of the step end face of the sealing protrusion, and when a small amount of water seeps, the water seeps from the position between the water retaining cover and the main shaft, falls into the flow channel and then enters the water storage cavity to be stored. Permeating water is guided, and water molecules are prevented from permeating into the position between the sealing seat and the main shaft.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to an underwater motor with high sealing performance. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy. There are many types of motors, and underwater motors are one type of motor. Underwater motors have a sealed design to prevent water infiltration. Key components and connections use sealing materials such as gaskets, sealants, or O-rings to ensure that the inside of the motor is isolated from the external environment. The external surface and internal components of the motor use coatings and materials with excellent water corrosion resistance and waterproof performance. Underwater motors have high sealing properties.

[0003] When the underwater motor is in use, the motor drives the main shaft to rotate. Although there are sealing designs such as waterproof sealing rings, after long-term use of the underwater motor, there is a tiny gap between the main shaft and the sealing ring, and a small amount of water will directly penetrate, affecting the sealing effect; when the underwater motor is in use, there is a problem that there is no design to guide the direction of the seeping water. For this reason, this application proposes a highly sealed underwater motor. Utility Model Content

[0004] The purpose of the present utility model is to provide an underwater motor with high sealing performance, so as to solve the problem in the above-mentioned background technology that the underwater motor has no design to guide the direction of water seepage.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: a highly sealed underwater motor, comprising

[0006] The motor main body assembly includes an underwater motor main body, a main shaft coaxial with the center of the underwater motor main body, and a sealing seat sleeved on the outside of the main shaft and in contact with the underwater motor main body;

[0007] The sealing assembly includes a sealing cover mounted on the outside of the sealing seat, a water shield mounted on the outside of the main shaft, a first sealing ring embedded in the outer surface of the water shield, and a shielding ring mounted on the outside of the water shield. The sealing cover is provided with a sealing protrusion embedded in the interior of the water shield, the sealing cover is provided with a flow channel and a water storage chamber connected to the flow channel, and the first sealing ring is provided with a sealing ring.

[0008] Preferably, a mounting groove cooperating with the sealing protrusion is provided on the surface of the water retaining cover facing the sealing cover.

[0009] Preferably, the cross-section of the sealing protrusion is in a vector step shape.

[0010] Preferably, a second sealing ring is provided on the surface of the water shield facing away from the sealing shield, and an annular groove cooperating with the second sealing ring is formed on the water shield.

[0011] Preferably, the water storage cavity is annular in shape, an annular placement groove is provided on the outer surface of the water shield, and the water storage cavity is communicated with the placement groove.

[0012] Preferably, the cross-sections of the first sealing ring and the blocking ring are T-shaped structures, and the first sealing ring and the blocking ring cooperate with the placement groove.

[0013] Preferably, the inner diameter of the shielding ring is the same as the outer diameter of the water shield and the first sealing ring, and the sealing shield which is hollow at the center of the circle is provided with a positioning groove which cooperates with the sealing seat. The water shield is a conical structure with one end wide and the other end narrow, and the surface of the wide end of the water shield fits with the surface of the sealing shield.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In the utility model, the underwater motor is designed to guide the direction of the seeping water. The sealing protrusion is combined with the stepped shape of the water retaining cover. The seeping water is guided by the stepped end face of the sealing protrusion and flows slowly on the stepped combined end face. When a small amount of water seepage occurs, the water seeps in from between the water retaining cover and the main shaft, falls into the flow channel and enters the water storage chamber for storage. The seeping water is guided to prevent water molecules from seeping into the position between the sealing seat and the main shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the water retaining cover of the present invention;

[0018] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0019] Figure 4 This is a side structural diagram of the shielding ring of the present invention;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the underwater motor body of the present utility model;

[0021] In the figure: 2, water shield; 3, sealing shield; 4, shielding ring; 11, underwater motor body; 12, main shaft; 13, sealing seat; 21, first sealing ring; 22, second sealing ring; 23, flow channel; 24, water storage chamber; 31, sealing protrusion; 211, blocking ring. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] Example

[0024] See also Figures 1 to 5 The utility model provides a technical solution: a highly sealed underwater motor, including a motor main body assembly, including an underwater motor main body 11, a main shaft 12 on the same axis as the center of the underwater motor main body 11, a sealing seat 13 sleeved on the outside of the main shaft 12 and fitted with the underwater motor main body 11, the underwater motor main body 11 drives the main shaft 12 to rotate, and a conventional O-ring sealing material is used between the sealing seat 13 and the main shaft 12 to maintain a high degree of sealing between the main shaft 12 and the underwater motor main body 11. The use method of the underwater motor and the underwater sealing are conventional technical means and are not described in detail in this application; the sealing assembly includes a sealing cover 3 sleeved on the outside of the sealing seat 13, a water retaining cover 2 sleeved on the outside of the main shaft 12, a first sealing ring 21 embedded in the outer surface of the water retaining cover 2, and a shielding ring 4 sleeved on the outside of the water retaining cover 2, and the outer surface of the sealing cover 3 is sprayed with a waterproof coating, The sealing cover 3 is installed on the outside of the sealing seat 13 to increase the sealing performance, and the water shield 2 is installed on the outside of the junction of the main shaft 12 and the sealing seat 13 to increase the water-proof effect. The sealing cover 3 is provided with a sealing protrusion 31 embedded in the inside of the water shield 2, and the sealing protrusion 31 is embedded in the inside of the water shield 2, so that the water shield 2 and the sealing cover 3 are tightly connected. A flow channel 23 and a water storage chamber 24 connected to the flow channel 23 are provided in the sealing cover 3. When a small amount of water seepage occurs, water seeps in from between the water shield 2 and the main shaft 12, and the infiltrated water molecules fall into the flow channel 23 and then enter the water storage chamber 24 for storage, thereby preventing water molecules from seeping into the position between the sealing seat 13 and the main shaft 12. A sealing ring 211 is provided on the first sealing ring 21. The first sealing ring 21 and the sealing ring 211 have the effect of blocking the infiltrated water. The shielding ring 4 can be removed, and the first sealing ring 21 and the sealing ring 211 can be replaced to facilitate cleaning of the stored water.

[0025] In this embodiment, the surface of the water shield 2 facing the sealing cover 3 is provided with an installation groove that cooperates with the sealing protrusion 31. The sealing protrusion 31 plays a limiting and sealing effect. The water shield 2 is accurately installed on the sealing cover 3. The cross-section of the sealing protrusion 31 is a vector stepped shape. The contact area of the stepped combination of the sealing protrusion 31 and the water shield 2 is large, and the infiltrated water flows slowly on the stepped joint end face, thereby improving the sealing effect.

[0026] In this embodiment, a second sealing ring 22 is provided on the surface of the water shield 2 facing away from the sealing cover 3. A ring groove is opened on the water shield 2 to cooperate with the second sealing ring 22. The second sealing ring 22 has a sealing effect to prevent water from penetrating between the water shield 2 and the main shaft 12.

[0027] In this embodiment, the water storage chamber 24 is annular in shape, and an annular placement groove is provided on the outer surface of the water shield 2. The water storage chamber 24 is connected to the placement groove. The cross-section of the first sealing ring 21 and the sealing ring 211 is a "T"-shaped structure. The first sealing ring 21 and the sealing ring 211 cooperate with the placement groove. The first sealing ring 21 and the sealing ring 211 seal the stored infiltrated water. After the first sealing ring 21 and the sealing ring 211 are removed, the stored infiltrated water can be cleaned and dried.

[0028] In this embodiment, the inner diameter of the shielding ring 4 is the same as the outer diameter of the water shield 2 and the first sealing ring 21. The hollow sealing shield 3 at the center position is provided with a positioning groove that cooperates with the sealing seat 13, which is conducive to the sealing shield 3 being installed on the outside of the sealing seat 13. The water shield 2 is a conical structure with one end wide and the other end narrow, which is conducive to water flowing outside the water shield 2. The surface of the wide end of the water shield 2 is in contact with the surface of the sealing shield 3.

[0029] The working principle and use process of this utility model:

[0030] When the underwater motor is in use, a sealing cover 3 and a water shield 2 are installed on the outside of the sealing seat 13 and the outside of the end of the main shaft 12 respectively. The sealing cover 3 and the water shield 2 separate water and improve the sealing performance;

[0031] The sealing protrusion 31 is embedded in the interior of the water shield 2. The contact area between the sealing protrusion 31 and the water shield 2 is large. After being guided by the stepped end surface of the sealing protrusion 31, the infiltrated water flows slowly along the stepped joint end surface, so that the water shield 2 and the sealing cover 3 are tightly connected and the sealing effect is high.

[0032] A flow channel 23 and a water storage chamber 24 connected to the flow channel 23 are provided in the sealing cover 3. When a small amount of water seepage occurs, water seeps in from between the water retaining cover 2 and the main shaft 12. The seeped water molecules fall into the flow channel 23 and then enter the water storage chamber 24 for storage. The seeped water is guided to prevent the water molecules from seeping into the position between the sealing seat 13 and the main shaft 12.

[0033] To sum up: the underwater motor is designed to guide the direction of infiltrated water. The water shield 2 is a cone with one end wide and the other end narrow, which can guide the direction of water flow. The contact area between the sealing protrusion 31 and the stepped shape of the water shield 2 is large. After being guided by the stepped end face of the sealing protrusion 31, the infiltrated water flows slowly on the stepped end face. When a small amount of water seepage occurs, water seeps in from between the water shield 2 and the main shaft 12. The infiltrated water molecules fall into the flow channel 23 and then enter the water storage chamber 24 for storage. The infiltrated water is guided to prevent water molecules from seeping into the position between the sealing seat 13 and the main shaft 12.

[0034] Although embodiments of the present invention have been shown and described (see the detailed description above for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly sealed underwater motor, characterized by: include The motor main body assembly comprises an underwater motor main body (11), a main shaft (12) coaxial with the center of the underwater motor main body (11), and a sealing seat (13) sleeved on the outside of the main shaft (12) and in contact with the underwater motor main body (11); A sealing assembly comprises a sealing cover (3) sleeved on the outside of a sealing seat (13), a water shield (2) sleeved on the outside of a main shaft (12), a first sealing ring (21) embedded in the outer surface of the water shield (2), and a shielding ring (4) sleeved on the outside of the water shield (2); the sealing cover (3) is provided with a sealing protrusion (31) embedded in the interior of the water shield (2); the sealing cover (3) is provided with a flow channel (23) and a water storage chamber (24) connected to the flow channel (23); and the first sealing ring (21) is provided with a blocking ring (211).

2. The highly sealed underwater motor according to claim 1, characterized in that: The surface of the water shield (2) facing the sealing shield (3) is provided with a mounting groove that matches the sealing protrusion (31).

3. The highly sealed underwater motor according to claim 1, characterized in that: The cross section of the sealing protrusion (31) is in a vector step shape.

4. The highly sealed underwater motor according to claim 1, characterized in that: A second sealing ring (22) is provided on the surface of the water shield (2) facing away from the sealing cover (3), and an annular groove cooperating with the second sealing ring (22) is provided on the water shield (2).

5. The highly sealed underwater motor according to claim 1, characterized in that: The water storage chamber (24) is annular in shape, and an annular placement groove is provided on the outer surface of the water shield (2), and the water storage chamber (24) is communicated with the placement groove.

6. The highly sealed underwater motor according to claim 1, characterized in that: The cross-sections of the first sealing ring (21) and the blocking ring (211) are "T"-shaped structures, and the first sealing ring (21) and the blocking ring (211) are matched with the placement groove.

7. The highly sealed underwater motor according to claim 1, characterized in that: The inner diameter of the shielding ring (4) is the same as the outer diameter of the water shield (2) and the first sealing ring (21); the sealing shield (3) which is hollow at the center of the circle is provided with a positioning groove which cooperates with the sealing seat (13); the water shield (2) is a conical structure with one end wide and the other end narrow; the surface of the wide end of the water shield (2) is in contact with the surface of the sealing shield (3).

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