Motor efficient waterproof assembly structure for soybean milk machine

Abstract

The utility model discloses a motor efficient waterproof assembly structure for a soybean milk machine. Comprising a motor end cover, a motor mounted on one side of the motor end cover, a water collecting tank arranged on the motor end cover and used for collecting and draining water, a drainage shaft sleeve arranged on a main shaft of the motor and located above the water collecting tank, and a cap mounted on the motor end cover and covering the water collecting tank and the drainage shaft sleeve, a main shaft of the motor penetrates through the motor end cover, the drainage shaft sleeve and the caps, a sealing ring located between the caps is further installed on the main shaft, and the drainage shaft sleeve is of an umbrella-shaped structure so that slurry flowing down along the main shaft can be drained to the middle of the water collecting tank. The water collecting tank is of an annular structure and is located on the periphery of the main shaft, a drainage groove extending to the edge of the motor end cover is formed in one side of the water collecting tank, and a drainage hole is formed in the end of the drainage groove.

Description

Technical Field:

[0001] The utility model relates to the technical field of soybean milk machines, and particularly refers to an efficient waterproof assembly structure for the motor of a soybean milk machine. Background Art:

[0002] A motor is a device that converts electrical energy into mechanical energy and is widely used in various fields, such as household appliances, industrial equipment, transportation, construction engineering, agricultural machinery, medical equipment, and office and computing equipment, etc. Its main function is to provide power and achieve mechanical motion, thereby driving various machines and equipment to operate normally. There are many types of motors, including DC motors, AC motors, stepper motors, and servo motors, etc., which are applied to various demand scenarios according to their different designs and functions.

[0003] When a motor is used in some occasions, the waterproofing of its assembly structure is crucial, which largely determines the service life of the motor and even directly affects the life of the entire device. For example, common household appliances such as washing machines and soybean milk machines need to use water during operation. Once the motor comes into contact with water, it will cause serious damage. Therefore, waterproof design is particularly important in the assembly structures of such devices.

[0004] Currently, the common waterproof structures on the market are usually applied to low-speed application scenarios. In such low-speed cases, the tightness of the equipment assembly structure can still be maintained well, and the overall waterproof effect will not be affected. For example, the washing machine operates at a low speed during operation, and its waterproof requirement is not high. However, for devices such as soybean milk machines and juicers that require high-speed breaking, during the high-speed rotation process, the rotating shaft and the contacting seal rotate at high speed, generating frictional heat, resulting in a gap between the rotating shaft and the seal during high-speed movement, allowing water or pulp to flow along the rotating shaft into the motor interior, easily causing damage to the motor. For example, in a sealing and assembling structure of a motor cover and a motor housing with Chinese patent application number 201621000002.1, in the technical solution disclosed in this patent, the sealing ring 6 is installed in the first annular groove 5 of the motor cover 2. When the motor operates at high speed, the sealing ring 6 and the main shaft will rub at high speed, generating high temperature, resulting in a decrease in the tightness between the sealing ring 6 and the main shaft and generating a gap. At this time, the liquid will flow into the motor interior from the gap between the sealing ring 6 and the main shaft, causing damage to the motor.

[0005] In view of this, the inventor has proposed the following technical solutions. Summary of the Utility Model:

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an efficient waterproof assembly structure for the motor of a soybean milk machine.

[0007] To solve the above technical problems, the present utility model adopts the following technical solutions: An efficient waterproof assembly structure for a motor of a soybean milk machine, comprising: a motor end cover, a motor installed on one side of the motor end cover, a water collecting groove provided on the motor end cover and used for collecting and draining water, a drainage shaft sleeve provided on the main shaft of the motor and located above the water collecting groove, and a cap installed on the motor end cover and covering the water collecting groove and the drainage shaft sleeve. Among them, the main shaft of the motor penetrates through the motor end cover, the drainage shaft sleeve and the cap, and a sealing ring located between the caps is also installed on the main shaft. The water collecting groove is located on the periphery of the main shaft, and a drainage groove extending to the edge of the motor end cover is provided on one side of the water collecting groove. A drainage hole is provided at the end of the drainage groove.

[0008] Furthermore, in the above technical solution, the drainage shaft sleeve has an umbrella-shaped structure to drain the slurry flowing down along the main shaft to the middle of the water collecting groove.

[0009] Furthermore, in the above technical solution, the drainage shaft sleeve is connected to the main shaft by threads, or the drainage shaft sleeve is connected to the main shaft by glue, or the drainage shaft sleeve is connected to the main shaft by both glue and threads.

[0010] Furthermore, in the above technical solution, the drainage shaft sleeve is sleeved on the main shaft and is limited and fixed by a snap ring.

[0011] Furthermore, in the above technical solution, the inner ring wall of the water collecting groove is sleeved on the main shaft and extends in a conical shape below the drainage shaft sleeve; the cap covers the outer ring wall of the water collecting groove, and a first notch corresponding to the drainage groove is provided on the outer ring wall, and a second notch corresponding to the drainage groove is provided on the outer wall of the cap.

[0012] Furthermore, in the above technical solution, clamping holes for the cap to be clamped are provided at the joints of the two side walls of the drainage groove and the outer ring wall of the water collecting groove, and the two side walls of the drainage groove extend to be higher than the outer edge wall of the cap.

[0013] Furthermore, in the above technical solution, the bottom of the water collecting groove is provided with a low-lying surface located in the inner ring and a high platform surface located in the outer ring. The high platform surface is disconnected at the drainage groove to form a concave pit area, which is lower than the low-lying surface, and an inclined surface is provided between the low-lying surface and the high platform surface, and the outer edge of the high platform surface inclines towards the inner edge.

[0014] Furthermore, in the above technical solution, the drainage groove is in a slope shape, the bottom of the drainage groove protrudes fan-shaped outward from the motor end cover, and the drainage hole is located on the fan-shaped convex edge of the drainage groove, and the two side walls of the drainage groove extend to both sides of the fan-shaped convex edge.

[0015] Furthermore, in the above technical solution, the water collecting tank is annularly distributed around the main shaft. Only one drainage groove is provided on one side of the drainage groove, and the width of the drainage groove is greater than one-fifth of the arc length of the water collecting tank and less than one-third of the arc length of the water collecting tank.

[0016] Furthermore, in the above technical solution, the motor end cover is integrally formed. The cap is installed on the motor end cover by screws and covers the water collecting tank, and the outer wall of the cap is sleeved on the outer ring wall of the water collecting tank; the drainage shaft sleeve includes a shaft sleeve portion for sleeving on the main shaft and an umbrella surface portion formed below the shaft sleeve portion and extending outward.

[0017] After adopting the above technical solution, the present utility model has the following beneficial effects compared with the prior art: In the present utility model, an umbrella-shaped drainage shaft sleeve is installed on the main shaft, and a water collecting tank is provided on the motor end cover. When the pulp water flowing along the main shaft into the motor passes through the drainage shaft sleeve, the centrifugal force generated by the high-speed rotation of the drainage shaft sleeve throws out the pulp water, and the water collecting tank collects the pulp water. The cap covering the water collecting tank prevents the pulp water from being thrown out. Therefore, this structure enables the pulp water not to directly flow into the motor even when the main shaft is rotating at a high speed, thus achieving efficient waterproofing. Secondly, by setting a drainage groove on one side of the water collecting tank for rapid pulp discharge, the collected pulp water will flow out of the water collecting tank from the drainage groove and flow away through the drain hole, thereby preventing the pulp water from accumulating at the water collecting tank to form dirt and greatly improving the waterproofing time. Description of the Drawings:

[0018] Figure 1 is the assembly schematic diagram of the present utility model;

[0019] Figure 2 is the exploded view of the present utility model;

[0020] Figure 3 is the cross-sectional view of the present utility model. Detailed Embodiment:

[0021] The present utility model will be further described below in conjunction with specific embodiments and drawings.

[0022] The present utility model is mainly used to solve two major problems: First, during the high-speed operation of the motor, a gap is generated due to friction and heat between the main shaft and the sealing ring, resulting in water leakage; second, in equipment such as a soybean milk machine, impurities are mixed in the liquid infiltrating along the main shaft. Such a mixed slurry residue will form scale over a long period, which will block the traditional drainage structure.

[0023] See Figures 1 to 3As shown in the figure, it is an efficient waterproof assembly structure for the motor of a soymilk machine, including: a motor end cover 1, a motor 2 installed on one side of the motor end cover 1, a water collecting groove 3 provided on the motor end cover 1 and used for collecting and draining water, a drainage shaft sleeve 4 provided on the main shaft 21 of the motor 2 and located above the water collecting groove 3, and a cap 5 installed on the motor end cover 1 and covering the water collecting groove 3 and the drainage shaft sleeve 4. Among them, the main shaft 21 of the motor 2 penetrates through the motor end cover 1, the drainage shaft sleeve 4 and the cap 5, and a sealing ring 6 located between the caps 5 is also installed on the main shaft 21. The drainage shaft sleeve 4 has an umbrella-shaped structure to drain the slurry flowing down along the main shaft 21 to the middle of the water collecting groove 3. The water collecting groove 3 is located outside the main shaft 21, and a drainage groove 30 extending to the edge of the motor end cover 1 is provided on one side of the water collecting groove 3, and a drainage hole 300 is provided at the end of the drainage groove 30. By installing an umbrella-shaped drainage shaft sleeve 4 on the main shaft 21 and providing a water collecting groove 3 on the motor end cover 1, when the slurry water flowing along the main shaft 21 into the motor 2 passes through the drainage shaft sleeve 4, the centrifugal force generated by the high-speed rotation of the drainage shaft sleeve 4 throws out the slurry water, and the water collecting groove 3 collects the slurry water, while the cap 5 covering the water collecting groove 3 prevents the slurry water from being thrown out. Therefore, this structure enables the slurry water not to directly flow into the motor 2 even when the main shaft 21 is rotating at a high speed, thus achieving efficient waterproofing. Secondly, by setting a drainage groove 30 on one side of the water collecting groove 3 to quickly drain the slurry, the slurry water will flow out of the water collecting groove 3 from the drainage groove 30 and flow away from the drainage hole 300 after being collected, thereby avoiding the accumulation of slurry water at the water collecting groove 3 to form dirt and greatly improving the waterproofing time.

[0024] A bearing 10 sleeved on the main shaft 21 is provided below the motor end cover 1, and the bearing 10 is limit-mounted on the bottom of the motor end cover 1 through a bearing end cover 101.

[0025] The drainage shaft sleeve 4 and the main shaft 21 are connected by threads, or the drainage shaft sleeve 4 and the main shaft 21 are connected by glue, or the drainage shaft sleeve 4 and the main shaft 21 are connected by both glue and threads. In an example, connecting the drainage shaft sleeve 4 and the main shaft 21 by threads can ensure firmness after the drainage shaft sleeve 4 is installed on the main shaft 21 and utilize the tight fit of the threads to play an effective waterproof role. And fixing the drainage shaft sleeve 4 on the main shaft 21 with glue can also achieve the installation and fixation of the drainage shaft sleeve 21 and utilize the sealing property of the glue to achieve effective waterproofing at the connection. Of course, in order to further strengthen waterproofing, glue can be used for waterproofing while connecting by threads, that is, when the drainage shaft sleeve 4 is installed on the main shaft 21 by threads, glue is first applied to the threads of the main shaft 21 and the drainage shaft sleeve 4, and then the two are tightly fitted together by threads, thereby achieving a double waterproof effect.

[0026] The drainage bushing 4 is sleeved on the main shaft 21 and is limited and fixed by a snap ring 7. The snap ring 7 is used to position and install the drainage bushing 4 on the main shaft 21. By elastically clamping the snap ring 7 in the card slot on the main shaft 21, it can effectively prevent the pulp water flowing into along the main shaft 21 from continuing to flow along the main shaft 21 into the motor 2. After the pulp water flows through the snap ring 7, it will flow into the drainage bushing 4 and be thrown into the water collecting tank 3 under the action of the centrifugal force generated by the rotation of the drainage bushing 4, thereby achieving efficient waterproofing. In order to further improve the waterproof effect at the drainage bushing 4, an interference fit can be adopted between the drainage bushing 4 and the main shaft 21. Since the drainage bushing 4 will rotate with the main shaft 21, there will be no gap and no problem of pulp leakage caused by high-speed rotation. Of course, in order to further improve the waterproof effect, the space between the drainage bushing 4 and the main shaft 21 can be filled with glue or waterproof tape.

[0027] The inner ring wall 31 of the water collecting tank 3 is sleeved on the main shaft 21 and extends in a conical shape to the lower part of the drainage bushing 4; the cap 5 is covered on the outer ring wall 32 of the water collecting tank 3, and a first notch 33 corresponding to the drainage groove 30 is provided on the outer ring wall 32, and a second notch 52 corresponding to the drainage groove 30 is provided on the outer wall 51 of the cap 5.

[0028] At the docking position of the two side walls 301 of the drainage groove 30 and the outer ring wall 32 of the water collecting tank 3, a clamping hole 302 for the cap 5 to be snapped is provided, and the two side walls 301 of the drainage groove 30 extend to be higher than the outer edge wall of the cap 5.

[0029] The bottom of the water collecting tank 3 is provided with a low-lying surface 3A located in the inner ring and a high platform surface 3B located in the outer ring. The high platform surface 3B is disconnected at the drainage groove 30 to form a concave pit area 3C, which is lower than the low-lying surface 3A. An inclined surface 3D is provided between the low-lying surface 3A and the high platform surface 3B, and the outer edge of the high platform surface 3B inclines towards the inner edge.

[0030] The drainage groove 30 is in a slope shape. The bottom of the drainage groove 30 protrudes fan-shaped outward from the motor end cover 1, and the drain hole 300 is located on the fan-shaped convex edge 303 of the drainage groove 30. The two side walls of the drainage groove 30 extend to both sides of the fan-shaped convex edge 303. Setting the drainage groove 30 in a slope shape can facilitate the pulp water to flow into the drain hole 300 from the water collecting tank 3 smoothly. And setting a fan-shaped convex edge 303 at the end of the drainage groove 30 is not only for the convenience of the layout of the drain hole 300, but also the fan-shaped design can facilitate the flushing of the pulp water, so that the pulp water accumulates scale on the outer edge of the fan-shaped convex edge 303 and avoids directly blocking the drain hole 300.

[0031] The motor end cover 1 is integrally formed. The cap 5 is installed on the motor end cover 1 by screws and covers the water collecting tank 3, and the outer wall 51 of the cap 5 is sleeved on the outer ring wall 32 of the water collecting tank 3. The drainage bushing 4 includes a bushing portion 41 for sleeving on the main shaft 21 and an umbrella surface portion 42 formed below the bushing portion 41 and extending outward.

[0032] The water collecting tank 3 is annularly distributed around the main shaft 21. Only one drainage groove 30 is provided on one side of the drainage groove 30, and the width of the drainage groove 30 is greater than one-fifth of the arc length of the water collecting tank 3 and less than one-third of the arc length of the water collecting tank 3. By using a drainage groove 30 with a large width for discharging pulp, it can effectively avoid the accumulation and blockage of pulp water in the drainage groove 30. Moreover, the relatively wide drainage groove 30 can not only discharge pulp quickly, but also has enough remaining space for pulp water to be discharged even if there is scale in the drainage groove 30, greatly reducing the blockage rate of the drainage groove 30, thereby improving the waterproof efficiency and reducing the risk of water ingress into the motor 2.

[0033] In summary, when the present utility model works, the bearing 10 is installed in the cavity below the motor end cover 1 and fixed by the bearing end cover 101. Further, the motor 2 is fixed to the motor end cover 1, and the main shaft 21 passes through the motor end cover 1 and the bearing 10. Further, the drainage bushing 4 is installed on the main shaft 21 and fixed to the main shaft 21 by threads or snap rings and glue. Further, the cap 5 is sleeved on the main shaft 21 and fixed by screws, and then the sealing ring 6 is sleeved on the main shaft 21, and finally the whole is fixed below the equipment. When the equipment works, the main shaft 21 of the motor 2 will rotate at a high speed. Under the action of friction, a gap will be generated between the sealing ring 6 and the main shaft, resulting in the liquid flowing downward along the gap. When the liquid passes through the drainage bushing 4, the drainage bushing 4 will throw out the liquid as it rotates with the main shaft 21. After being collected by the water collecting tank 3 below, it is discharged from the drainage hole 300 through the drainage groove 30.

[0034] Certainly, the above are only specific embodiments of the present utility model and are not intended to limit the scope of implementation of the present utility model. Any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the present utility model should be included in the scope of the patent application of the present utility model.

Claims

1. An efficient waterproof assembly structure for the motor of a soymilk machine, characterized in that: Including: A motor end cover (1), a motor (2) installed on one side of the motor end cover (1), a water collecting groove (3) provided on the motor end cover (1) and used for water collection and drainage, a drainage shaft sleeve (4) provided on the main shaft (21) of the motor (2) and located above the water collecting groove (3), and a cap (5) installed on the motor end cover (1) and covering the water collecting groove (3) and the drainage shaft sleeve (4). Among them, the main shaft (21) of the motor (2) penetrates through the motor end cover (1), the drainage shaft sleeve (4) and the cap (5), and a sealing ring (6) located between the caps (5) is also installed on the main shaft (21). The water collecting groove (3) is located on the periphery of the main shaft (21), and a drainage groove (30) extending to the edge of the motor end cover (1) is provided on one side of the water collecting groove (3). A drainage hole (300) is provided at the end of the drainage groove (30).

2. The efficient waterproof assembly structure of the motor for a soymilk machine according to claim 1, wherein: The drainage shaft sleeve (4) has an umbrella-shaped structure to drain the slurry flowing down along the main shaft (21) to the middle of the water collecting groove (3).

3. The high-efficiency waterproof assembly structure of the motor for a soybean milk machine according to claim 1, characterized in that: The drainage shaft sleeve (4) is connected to the main shaft (21) by threading, or the drainage shaft sleeve (4) is connected to the main shaft (21) by glue, or the drainage shaft sleeve (4) is connected to the main shaft (21) by both glue and threading.

4. A high-efficiency waterproof assembly structure for a motor of a soymilk machine according to claim 1, characterized in that: The drainage shaft sleeve (4) is sleeved on the main shaft (21) and is limited and fixed by a snap ring (7).

5. The high-efficiency waterproof assembly structure of a motor for a soymilk machine according to claim 1, characterized in that: The inner ring wall (31) of the water collecting groove (3) is sleeved on the main shaft (21) and extends in a conical shape below the drainage shaft sleeve (4); the cap (5) covers the outer ring wall (32) of the water collecting groove (3), and a first notch (33) corresponding to the drainage groove (30) is provided on the outer ring wall (32), and a second notch (52) corresponding to the drainage groove (30) is provided on the outer wall (51) of the cap (5).

6. The high-efficiency waterproof assembly structure of the motor for a soybean milk machine according to claim 5, characterized in that: At the docking position of the two side walls (301) of the drainage groove (30) and the outer ring wall (32) of the water collecting groove (3), a clamping hole (302) for the cap (5) to be clamped is provided, and the two side walls (301) of the drainage groove (30) extend to be higher than the outer edge wall of the cap (5).

7. A highly efficient waterproof assembly structure for a motor of a soymilk machine according to claim 1, characterized in that: The bottom of the water collecting groove (3) is provided with a low-lying surface (3A) located in the inner ring and a high platform surface (3B) located in the outer ring. The high platform surface (3B) is disconnected at the drainage groove (30) to form a pit area (3C). The pit area (3C) is lower than the low-lying surface (3A), and a transition inclined surface (3D) is provided between the low-lying surface (3A) and the high platform surface (3B). The outer edge of the high platform surface (3B) inclines towards the inner edge.

8. The high-efficiency waterproof assembly structure of the motor for a soymilk machine according to claim 7, characterized in that: The drainage groove (30) is in a slope shape. The bottom of the drainage groove (30) protrudes fan-shaped outwards from the motor end cover (1), and the drainage hole (300) is located on the fan-shaped convex edge (303) of the drainage groove (30). The two side walls of the drainage groove (30) extend to both sides of the fan-shaped convex edge (303).

9. The high-efficiency waterproof assembly structure of a motor for a soymilk machine according to claim 1, characterized in that: The water collecting groove (3) is annularly distributed on the periphery of the main shaft (21). Only one drainage groove (30) is provided on one side of the drainage groove (30), and the width of the drainage groove (30) is greater than one-fifth of the arc length of the water collecting groove (3) and less than one-third of the arc length of the water collecting groove (3).

10. A high-efficiency waterproof assembly structure for a motor of a soymilk machine according to any one of claims 1-9, characterized in that: The motor end cover (1) is integrally formed. The cap (5) is installed on the motor end cover (1) by screws and covers the water collecting tank (3), and the outer wall (51) of the cap (5) is sleeved on the outer ring wall (32) of the water collecting tank (3). The drainage bushing (4) includes a bushing portion (41) for sleeving on the main shaft (21) and an umbrella surface portion (42) formed below the bushing portion (41) and extending outward.

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