Highly waterproof driving motor

Abstract

The utility model discloses a highly waterproof driving motor, which relates to the technical field of motors, and comprises a motor main body, an end cover is arranged on one side of the motor main body, a motor shaft is arranged in the motor main body, the motor shaft penetrates through the surface of the end cover, and a bearing is arranged between the motor shaft and the end cover. A fixed ring is fixedly connected to the surface of the end cover, an annular groove is formed in the surface of the fixed ring, movable rods which are circumferentially arranged at equal intervals are slidably connected to the inner wall of the annular groove, the movable rods penetrate through the surface of the fixed ring and are slidably connected with the interior of the fixed ring, oil seals are fixedly connected to the opposite ends of the movable rods, and one sides of the oil seals make contact with the surface of the end cover. According to the high-waterproof driving motor, the situation that water enters the motor due to the fact that external water enters the motor from a gap between the oil seal and the motor shaft due to abrasion between the oil seal and the motor shaft in the using process of the device is avoided, the waterproof effect of the motor is improved, and the service life of the motor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a highly waterproof driving motor. Background Art

[0002] A motor is a power output device based on the principle of electromagnetic induction. When the motor is energized, the changes in the internal magnetic field drive the rotor to rotate at high speed, allowing the output shaft of the rotor to output power.

[0003] However, when the existing motor is in use, the gap between the motor end cover and the motor shaft is mainly sealed by an oil seal. Since the oil seal is made of rubber, the oil seal gradually becomes thinner due to long-term wear between the oil seal and the motor shaft or the end cover, which leads to a gap between the motor shaft and the end cover, resulting in the possibility of water ingress, which in turn causes the inside of the motor to be soaked, thereby affecting the operation of the motor. Therefore, a highly waterproof drive motor is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a highly waterproof drive motor that can solve the problems of the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highly waterproof drive motor, comprising a motor body, an end cover is arranged on one side of the motor body, a motor shaft is arranged inside the motor body, the motor shaft passes through the surface of the end cover, a bearing is arranged between the motor shaft and the end cover, a fixing ring is fixedly connected to the surface of the end cover, a ring groove is provided on the surface of the fixing ring, a moving rod equidistantly arranged in a circle is slidably connected to the inner wall of the ring groove, the moving rod passes through the surface of the fixing ring and is slidably connected to the inside of the fixing ring, an oil seal is fixedly connected to the opposite end of the moving rod, and one side of the oil seal is in contact with the surface of the end cover.

[0006] Preferably, a through hole is opened on the surface of the moving rod, a rubber ring is placed on the inner wall of the through hole, and the rubber ring is also located in the annular groove.

[0007] Preferably, an extrusion groove with a trapezoidal cross-section is opened on the surface of the moving rod, a threaded sleeve is fixedly connected to the surface of the end cap, a threaded cap is threadedly connected to the surface of the threaded sleeve, the motor shaft is rotatably connected to the inside of the threaded cap, the inner wall of the threaded cap is slidably connected to extrusion rods arranged equidistantly, and the extrusion rods and the inner wall of the extrusion groove slide against each other.

[0008] Preferably, a blocking ring is fixedly connected to the inner wall of the motor body, a cylindrical airbag is fixedly connected to the inner wall of the blocking ring, a bearing is also fixedly connected to the inner wall of the cylindrical airbag, and the inner wall of the bearing is fixedly connected to the surface of the motor shaft.

[0009] Preferably, a sealing gasket is provided between the motor body and the end cover.

[0010] Preferably, the surface of the sealing pad is fixedly connected with inflatable bags arranged at equal distances, and the inflatable bags are located outside the motor body and the end cover.

[0011] Preferably, the surface of the cylindrical airbag is fixedly connected with a connecting tube connected to the interior of the cylindrical airbag. The connecting tube passes through the surface of the shielding ring and is fixedly connected to the interior of the shielding ring. The connecting tube also passes through the surface of the sealing pad and is fixedly connected to the interior of the sealing pad. The end of the connecting tube away from the cylindrical airbag is connected to the interior of the inflatable bag.

[0012] Preferably, a drainage hole penetrating the surface of the end cover is opened on the surface of the end cover.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The highly waterproof drive motor avoids the situation in which water from the outside enters the motor through the gap between the oil seal and the motor shaft due to wear between the oil seal and the motor shaft during use of the device, thereby improving the waterproof effect of the motor and increasing the service life of the motor.

[0015] (2) The highly waterproof drive motor avoids the situation in which the air pressure in the motor body pushes the oil seal after the temperature of the motor body rises, causing water to enter between the motor shaft and the oil seal, thereby affecting the waterproof performance of the motor. This further improves the waterproof effect of the motor and increases the service life of the motor, and is worthy of promotion.

[0016] (3) The bearing arrangement of the highly waterproof drive motor can be used in conjunction with the shielding ring and the cylindrical airbag to divide the motor body into two motor body cavities. After water enters the motor, the water can only be retained between the shielding ring and the end cover and cannot soak the stator of the motor, thereby further improving the waterproof effect of the motor and improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the surface structure of the end cover of the utility model;

[0020] Figure 3 For this utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0021] Figure 4 This is a schematic diagram of the internal structure of the mobile rod of the utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the motor body of the utility model;

[0023] Figure 6 It is a schematic diagram of the surface structure of the sealing gasket of the utility model.

[0024] Figure numerals: 1. Motor body; 2. Motor shaft; 3. End cover; 4. Threaded cover; 5. Threaded sleeve; 6. Oil seal; 7. Fixed ring; 8. Moving rod; 9. Rubber ring; 10. Through hole; 11. Ring groove; 12. Extrusion rod; 13. Extrusion groove; 14. Bearing; 15. Cylindrical airbag; 16. Shielding ring; 17. Connecting pipe; 18. Drain hole; 19. Inflatable bag; 20. Sealing gasket. DETAILED DESCRIPTION

[0025] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0026] See also Figure 1-6 The utility model provides a technical solution: a highly waterproof drive motor, including a motor body 1, an end cover 3 is arranged on one side of the motor body 1, the motor body 1 and the end cover 3 are connected by bolts, a motor shaft 2 is arranged inside the motor body 1, the motor shaft 2 passes through the surface of the end cover 3, and a bearing 14 is arranged between the motor shaft 2 and the end cover 3 to reduce the mutual friction between the motor shaft 2 and the end cover 3, thereby improving the service life of the motor.

[0027] A fixing ring 7 is fixedly connected to the surface of the end cover 3, and an annular groove 11 is provided on the surface of the fixing ring 7. The inner wall of the annular groove 11 is slidably connected with moving rods 8 arranged equidistantly in a circle. The moving rods 8 penetrate the surface of the fixing ring 7 and are slidably connected to the inside of the fixing ring 7. An oil seal 6 is fixedly connected to the opposite end of the moving rod 8, and one side of the oil seal 6 is in contact with the surface of the end cover 3, thereby preventing moisture from entering the motor through the gap between the oil seal 6 and the end cover 3, thereby preventing the motor from running properly.

[0028] Furthermore, a through hole 10 is opened on the surface of the moving rod 8, and a rubber ring 9 is placed on the inner wall of the through hole 10. The rubber ring 9 is also located in the annular groove 11, and then through the setting of the rubber ring 9, after the motor shaft 2 is inserted into the oil seal 6, the elastic force of the rubber ring 9 can be used to always drive the moving rod 8 to approach the center of the motor shaft 2, thereby squeezing the oil seal 6, and under the elastic force of the oil seal 6, the oil seal 6 is always close to the surface of the motor shaft 2, and then the oil seal 6 is always in contact with the surface of the motor shaft 2, thereby avoiding the situation in which the device is used, resulting in external moisture entering the motor through the gap between the oil seal 6 and the motor shaft 2 due to wear between the oil seal 6 and the motor shaft 2, thereby causing water to enter the motor, thereby improving the waterproof effect of the motor and increasing the service life of the motor.

[0029] An extrusion groove 13 with a trapezoidal cross-section is provided on the surface of the moving rod 8, a threaded sleeve 5 is fixedly connected to the surface of the end cover 3, a threaded cover 4 is threadedly connected to the surface of the threaded sleeve 5, the motor shaft 2 is rotatably connected to the inside of the threaded cover 4, the setting of the threaded cover 4 can provide certain support to the motor shaft 2, so that the motor shaft 2 can withstand a larger load, thereby improving the use effect of the motor, the inner wall of the threaded cover 4 is slidably connected to extrusion rods 12 arranged equidistantly, and the extrusion rods 12 and the inner wall of the extrusion groove 13 slide against each other.

[0030] Furthermore, a shielding ring 16 is fixedly connected to the inner wall of the motor body 1, and a cylindrical airbag 15 is fixedly connected to the inner wall of the shielding ring 16. A bearing 14 is also fixedly connected to the inner wall of the cylindrical airbag 15. The inner wall of the bearing 14 is fixedly connected to the surface of the motor shaft 2, thereby avoiding damage to the cylindrical airbag 15 when the motor shaft 2 rotates. At the same time, the setting of the bearing 14 can cooperate with the shielding ring 16 and the cylindrical airbag 15 to divide the motor body 1 into two motor body 1 cavities, so that after water enters the motor, the water can only be retained between the shielding ring 16 and the end cover 3, and cannot soak the stator of the motor, thereby further improving the waterproof effect of the motor and improving the use effect of the device.

[0031] A sealing gasket 20 is arranged between the motor body 1 and the end cover 3, and the connection portion between the motor body 1 and the end cover 3 can be sealed by the setting of the sealing gasket 20, thereby preventing moisture from entering the motor through the gap between the motor body 1 and the end cover 3, causing water to enter the motor.

[0032] Furthermore, the surface of the sealing gasket 20 is fixedly connected with inflatable bags 19 arranged at equal intervals, and the inflatable bags 19 are located outside the motor body 1 and the end cover 3. The surface of the cylindrical airbag 15 is fixedly connected with a connecting tube 17 connected to the interior of the cylindrical airbag 15. The connecting tube 17 passes through the surface of the shielding ring 16 and is fixedly connected to the interior of the shielding ring 16. The connecting tube 17 also passes through the surface of the sealing gasket 20 and is fixedly connected to the interior of the sealing gasket 20. The end of the connecting tube 17 away from the cylindrical airbag 15 is connected to the interior of the inflatable bag 19.

[0033] The surface of the end cover 3 is provided with a drainage hole 18 penetrating the surface of the end cover 3 for draining the moisture between the end cover 3 and the shielding ring 16 . When the motor is in use, the drainage hole 18 is in a blocked state.

[0034] Specifically, when the motor body 1 is connected to the end cover 3, the threaded cover 4 is first rotated to gradually approach the end cover 3, and then the extrusion rod 12 is extruded to make the extrusion rod 12 slide in the extrusion groove 13, and the inclined surface of the extrusion groove 13 is extruded, so that the moving rod 8 moves to the outside of the fixed ring 7, and then the rubber ring 9 is stretched, and the oil seal 6 is pulled at the same time to increase the diameter of the oil seal 6, and then the motor shaft 2 can be easily passed through the end cover 3 and the oil seal 6, and then the motor body 1 and the end cover 3 can be assembled, and then the threaded cover 4 is restored to its original state, and then under the elastic force of the rubber ring 9 and the oil seal 6, the oil seal 6 is always in contact with the surface of the motor shaft 2, thereby completing the sealing of the connection between the motor shaft 2 and the end cover 3.

[0035] When the motor is in use, the temperature generated increases the air pressure in the motor body 1, and the air pressure then squeezes the cylindrical airbag 15, so that the gas in the cylindrical airbag 15 enters the inflatable bag 19 through the connecting tube 17, thereby releasing the air pressure in the motor body 1. This avoids the situation where, after the temperature of the motor body 1 rises, the air pressure in the motor body 1 pushes the oil seal 6, resulting in the possibility of water entering between the motor shaft 2 and the oil seal 6, affecting the waterproof performance of the motor. This further improves the waterproof effect of the motor and increases the service life of the motor, which is worthy of promotion.

[0036] Working principle: When connecting the motor body 1 with the end cover 3, first rotate the threaded cover 4 to make the threaded cover 4 gradually approach the end cover 3, and then squeeze the extrusion rod 12 to make the extrusion rod 12 slide in the extrusion groove 13, and squeeze the inclined surface of the extrusion groove 13, so that the moving rod 8 moves to the outside of the fixed ring 7, and then stretch the rubber ring 9, and at the same time pull the oil seal 6 to increase the diameter of the oil seal 6, and then the motor shaft 2 can be easily passed through the end cover 3 and the oil seal 6, so that the motor body 1 and the end cover 3 can be assembled, and then the threaded cover 4 is restored to its original state, and then under the elastic force of the rubber ring 9 and the oil seal 6, the oil seal 6 is always in contact with the surface of the motor shaft 2, thereby completing the sealing of the connection between the motor shaft 2 and the end cover 3.

[0037] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A highly waterproof driving motor, comprising a motor body (1), characterized in that: An end cover (3) is provided on one side of the motor body (1), a motor shaft (2) is provided inside the motor body (1), the motor shaft (2) passes through the surface of the end cover (3), a bearing (14) is provided between the motor shaft (2) and the end cover (3), a fixing ring (7) is fixedly connected to the surface of the end cover (3), a ring groove (11) is provided on the surface of the fixing ring (7), and moving rods (8) arranged equidistantly in a circle are slidably connected to the inner wall of the ring groove (11), the moving rods (8) pass through the surface of the fixing ring (7) and are slidably connected to the inside of the fixing ring (7), an oil seal (6) is fixedly connected to the opposite end of the moving rod (8), and one side of the oil seal (6) is in contact with the surface of the end cover (3).

2. A highly waterproof drive motor according to claim 1, characterized in that: A through hole (10) is provided on the surface of the moving rod (8), a rubber ring (9) is placed on the inner wall of the through hole (10), and the rubber ring (9) is also located in the annular groove (11).

3. A highly waterproof drive motor according to claim 1, characterized in that: The surface of the moving rod (8) is provided with an extrusion groove (13) with a trapezoidal cross section, the surface of the end cover (3) is fixedly connected with a threaded sleeve (5), the surface of the threaded sleeve (5) is threadedly connected with a threaded cover (4), the motor shaft (2) is rotatably connected to the inside of the threaded cover (4), the inner wall of the threaded cover (4) is slidably connected with extrusion rods (12) arranged at equal distances, and the extrusion rods (12) and the inner wall of the extrusion groove (13) slide relative to each other.

4. The highly waterproof drive motor according to claim 1, characterized in that: The inner wall of the motor body (1) is fixedly connected to a shielding ring (16), the inner wall of the shielding ring (16) is fixedly connected to a cylindrical airbag (15), the inner wall of the cylindrical airbag (15) is also fixedly connected to a bearing (14), and the inner wall of the bearing (14) is fixedly connected to the surface of the motor shaft (2).

5. A highly waterproof drive motor according to claim 4, characterized in that: A sealing gasket (20) is provided between the motor body (1) and the end cover (3).

6. A highly waterproof drive motor according to claim 5, characterized in that: The surface of the sealing pad (20) is fixedly connected with inflatable bags (19) arranged at equal distances, and the inflatable bags (19) are located outside the motor body (1) and the end cover (3).

7. A highly waterproof drive motor according to claim 6, characterized in that: A connecting tube (17) connected to the inside of the cylindrical airbag (15) is fixedly connected to the surface of the cylindrical airbag (15); the connecting tube (17) passes through the surface of the shielding ring (16) and is fixedly connected to the inside of the shielding ring (16); the connecting tube (17) also passes through the surface of the sealing pad (20) and is fixedly connected to the inside of the sealing pad (20); one end of the connecting tube (17) away from the cylindrical airbag (15) is connected to the inside of the inflation bag (19).

8. The highly waterproof drive motor according to claim 1, characterized in that: The surface of the end cover (3) is provided with a drainage hole (18) penetrating the surface of the end cover (3).

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