Shaft extension water throwing device of vertical permanent magnet motor with shaft extending upwards

Abstract

The utility model relates to the field of motors, in particular to a shaft extension water throwing device of an upper shaft extension vertical permanent magnet motor. The shaft extension hydro-extracting device of the vertical permanent magnet motor with the shaft extending upwards comprises a motor body and a motor shaft, a bearing end cover is fixed at the upper end of the motor body, the motor shaft penetrates through the bearing end cover, and the shaft extension hydro-extracting device of the vertical permanent magnet motor with the shaft extending upwards further comprises a fixed flow guide disc which is in a disc shape with an opening in the center and is concentrically fixed on the bearing end cover; the rotary water throwing disc is concentrically fixed on the motor shaft; and the buffer flow guide structure comprises a flow guide part fixed on the bearing end cover and a buffer part fixed on the flow guide part. According to the shaft extension water throwing device of the vertical permanent magnet motor with the shaft extending upwards, the rotary water throwing disc is installed on the motor shaft and can rotate along with the motor shaft when the motor works, and water stains on the rotary water throwing disc are thrown out through centrifugal force, so that the water stains can be prevented from entering the motor, and a better protection effect on the motor is achieved.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a shaft-extending water-splitting device for a vertical permanent magnet motor with a top-exit shaft. Background Art

[0002] The top-shaft vertical permanent magnet motor is a special setting of the motor, that is, the axis of the motor is perpendicular to the ground, and its output shaft is located at the top of the motor. This type of motor is mostly used in equipment such as pumps and agitators.

[0003] This design also has certain disadvantages. That is, if condensation water or rainwater appears at the output shaft position during the operation of the motor, the water stains will easily enter the interior of the motor through the gap between the output shaft and the end cover, thereby affecting the safety and service life of the motor.

[0004] Therefore, it is necessary to provide a new top-exit shaft vertical permanent magnet motor shaft extension water-splitting device to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a top-exit shaft vertical permanent magnet motor shaft extension water-splitting device.

[0006] The utility model provides a top-exit shaft vertical permanent magnet motor shaft extension water-splitting device, comprising a motor body and a motor shaft, wherein a bearing end cover is fixed to the upper end of the motor body, and the motor shaft passes through the bearing end cover, and further comprising:

[0007] The fixed guide plate is in the shape of a disk with an opening in the center, and the fixed guide plate is concentrically fixed to the bearing end cover;

[0008] A rotating water-draining plate is concentrically fixed to the motor shaft and driven to rotate by the motor shaft, wherein the edge of the rotating water-draining plate extends above the fixed guide plate;

[0009] The buffering flow-guiding structure comprises a flow-guiding portion fixed on the bearing end cover and a buffering portion fixed on the flow-guiding portion.

[0010] Preferably, the rotating water-spinning tray is a cover with an arc-shaped protrusion on the upper portion;

[0011] An extension portion extending toward the rotating water-shedding plate is provided at a position close to the central opening of the fixed deflector plate, and the rotating water-shedding plate covers the extension portion in a vertical direction.

[0012] Preferably, the fixed guide plate is fixed to the bearing end cover by means of bolts and combined washers.

[0013] Preferably, the rotating water-spraying disc is fixed on the motor shaft by a shrink sleeve and has an interference fit with the motor shaft.

[0014] Preferably, the guide portion includes a fixed ring fixed to the edge of the bearing end cover, a plurality of circumferentially distributed support plates are fixed to the upper part of the fixed ring, and an inverted bucket-shaped ring plate is fixed to the other end of the plurality of support plates, the ring plate is opposite to the rotating water-spraying disc in the horizontal direction, and the diameter of the lower end of the ring plate is larger than the diameter of the bearing end cover.

[0015] Preferably, the buffer portion comprises a rubber sheet having densely distributed small leakage holes, and a rubber strip is integrally connected to one side of the rubber sheet near the edge and fixed to the inner wall of the ring plate through the rubber strip.

[0016] Compared with the related art, the top-exit shaft vertical permanent magnet motor shaft extension water-splitting device provided by the utility model has the following beneficial effects:

[0017] The utility model provides a water-spinning device for a vertical permanent magnet motor with a top-exit shaft. A rotating water-spinning plate is mounted on the motor shaft and rotates together with the motor when the motor is working, thereby using centrifugal force to spin out water stains on the rotating water-spinning plate. When the motor is not working, the fixed guide plate can guide water stains, thereby preventing water stains from entering the interior of the motor and providing better protection for the motor.

[0018] The buffer diversion structure has the functions of diversion and buffering. It can intercept the water thrown out by the rotating water-spraying disc and divert it in a directional manner to prevent the water stains from polluting the working area. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a preferred embodiment of the shaft-extending water-splitting device for a vertical permanent magnet motor with an upper shaft provided by the utility model;

[0020] Figure 2 This is a structural diagram of the installation of the fixed guide plate and the rotating water-spraying plate shown in the present invention;

[0021] Figure 3 The utility model shown in Figure 2 A schematic diagram of the structure enlarged;

[0022] Figure 4 The utility model shown in Figure 2 A schematic diagram of the structure enlarged at point B;

[0023] Figure 5 This is a schematic structural diagram of a cross-section of the rotary water-spinning tray shown in the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the buffer diversion structure shown in the utility model Figure 1 ;

[0025] Figure 7 This is a schematic diagram of the structure of the buffer diversion structure shown in the utility model Figure 2 .

[0026] Numbers in the figure: 1. Motor body; 2. Bearing end cover; 3. Motor shaft; 4. Fixed guide plate; 5. Rotating water-spraying plate; 6. Bolt; 7. Combined washer; 8. Buffer guide structure; 81. Fixed ring; 82. Support plate; 83. Ring plate; 84. Rubber sheet; 85. Rubber strip. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the description of the present invention, “plurality” means two or more, unless otherwise clearly defined.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0032] See also Figures 1 to 7The present invention provides a top-exit shaft vertical permanent magnet motor shaft extension water-splitting device, which includes a motor body 1 and a motor shaft 3. A bearing end cover 2 is fixed to the upper end of the motor body 1, and the motor shaft 3 passes through the bearing end cover 2. The device also includes:

[0033] The fixed guide plate 4 is a disc with an opening in the center. The fixed guide plate 4 is concentrically fixed to the bearing end cover 2 by bolts 6 and combined washers 7.

[0034] The rotating water-shedding plate 5 is fixed on the motor shaft 3 by shrink sleeve and interference fit with the motor shaft 3. The rotating water-shedding plate 5 is driven to rotate by the motor shaft 3. The edge of the rotating water-shedding plate 5 extends above the fixed guide plate 4.

[0035] The buffering flow-guiding structure 8 comprises a flow-guiding portion fixed on the bearing end cover 2 and a buffering portion fixed on the flow-guiding portion.

[0036] It should be noted that: in this device, the rotating water-spinning disc 5 is the main waterproof structure;

[0037] For the installation of both, the fixed deflector plate 4 is used as a deflection structure, so it can be fixed by bolts 6, which is convenient for subsequent disassembly and maintenance; the rotating water-spinning plate 5 is the main waterproof structure, so it must cover the gap between the motor shaft 3 and the bearing end cover 2. Therefore, it is directly fixed on the motor shaft 3 and installed in a shrink fit and interference fit manner, which can further improve the waterproof effect.

[0038] As for the rotating water-spinning tray 5, it is fixed on the motor shaft 3. Therefore, when the motor is in operation, the rotating water-spinning tray 5 will also rotate. Therefore, when it rains or condensation water appears, the rotating water-spinning tray will first intercept it, and then the water stains will be thrown out under the action of centrifugal force to prevent the water stains from entering the interior of the motor body 1.

[0039] When the motor is not in operation, the rotating water-spinning plate 5 is used as an interception structure, and the intercepted water flows along its upper surface to the fixed guide plate 4, and then the fixed guide plate 4 guides the water out;

[0040] Therefore, the motor itself has a higher waterproof performance, better protection effect on the motor, ensuring the safety of the motor and prolonging its service life;

[0041] The buffering and guiding structure 8 has the functions of buffering and guiding. It is mainly used in conjunction with the rotating water-dumping disc 5 in a rotating state. Because the water thrown out by the rotating water-dumping disc 5 will splash out, it is easy to pollute the surrounding working area. For this reason, a buffering and guiding structure 8 is set to intercept the splashing water and guide it in a directional manner to avoid splashing of water stains, so as to avoid pollution of the working site; and if the motor is used indoors, it is more conducive to collecting and cleaning water stains.

[0042] In the embodiments of the present invention, please refer to Figure 3 and Figure 5 , the rotating water-spinning tray 5 is a cover with an arc-shaped protrusion on the upper part;

[0043] An extension portion is provided near the central opening of the fixed deflector plate 4 and extends toward the rotating water-shedding plate 5 . The rotating water-shedding plate 5 covers the extension portion in the vertical direction.

[0044] It should be noted that the upper portion of the rotating water-spinning plate 5 is convex, so that the water-spinning effect is better during the rotation and water-spinning process. Moreover, this shape is less subject to resistance when the motor shaft 3 rotates at high speed and is not easily damaged. When the motor is not in operation, water droplets on the rotating water-spinning plate 5 can also slide down the inclined surface better, and water accumulation will not occur.

[0045] The fixed guide plate 4 can also be set to an upward convex shape, which can also increase the diversion effect to avoid water accumulation. At the same time, the extension part set in the middle of the fixed guide plate 4 has an intercepting effect on water, further improving the waterproof effect.

[0046] In the embodiments of the present invention, please refer to Figure 6 and Figure 7 The guide portion includes a fixed ring 81 fixed to the edge of the bearing end cover 2. A plurality of circumferentially distributed support sheets 82 are fixed to the upper portion of the fixed ring 81. An inverted bucket-shaped ring plate 83 is fixed to the other end of the plurality of support sheets 82. The ring plate 83 is horizontally opposite to the rotating water-spinning disc 5, and the diameter of the lower end of the ring plate 83 is larger than the diameter of the bearing end cover 2.

[0047] The buffer portion includes a rubber sheet 84 having densely distributed small leakage holes. A rubber strip 85 is integrally connected to one side of the rubber sheet 84 near the edge and is fixed to the inner wall of the ring plate 83 through the rubber strip 85 .

[0048] It should be noted that: with respect to the guide portion, it is fixed to the bearing end cover 2 to ensure the stability of the entire buffer guide structure 8. At the same time, its ring plate 83 is the main interception structure. The ring plate 83 corresponds to the water-spinning guide plate 5 in the horizontal direction to meet the needs of water interception. At the same time, the diameter of its lower end is larger than the diameter of the bearing end cover 2. Therefore, when the intercepted water drips from the lower end, it can avoid the motor body 1.

[0049] As for the buffer part, the main component is a rubber sheet 84 with a leakage hole on it. After the thrown water hits the rubber sheet 84, it can play a buffering role. At the same time, the rubber sheet 84 is fixed to the ring plate 83 through the rubber strip 85, which can realize the installation of the rubber sheet 84 and enable a certain distance between the rubber sheet 84 and the ring plate 83. This distance allows the rubber sheet 84 to have a certain deformation space, thereby further improving the buffering effect.

[0050] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0051] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A top-exit shaft vertical permanent magnet motor shaft extension water-splitting device, comprising a motor body (1) and a motor shaft (3), wherein a bearing end cover (2) is fixed to the upper end of the motor body (1), and the motor shaft (3) passes through the bearing end cover (2), characterized in that: Also includes: The fixed guide plate (4) is in the shape of a disk with an opening at the center, and the fixed guide plate (4) is concentrically fixed to the bearing end cover (2); A rotating water-draining plate (5) is concentrically fixed on the motor shaft (3) and drives the rotating water-draining plate (5) to rotate via the motor shaft (3), wherein the edge of the rotating water-draining plate (5) extends above the fixed guide plate (4); The buffering flow-guiding structure (8) comprises a flow-guiding portion fixed on the bearing end cover (2) and a buffering portion fixed on the flow-guiding portion.

2. The top-exit shaft vertical permanent magnet motor shaft extension water-splitting device according to claim 1, characterized in that: The rotating water-spinning disc (5) is a cover body with an arc-shaped protrusion on the upper portion; An extension portion extending toward the rotating water-spraying plate (5) is provided at a position close to the central opening of the fixed guide plate (4), and the rotating water-spraying plate (5) covers the extension portion in the vertical direction.

3. The top-exit shaft vertical permanent magnet motor shaft extension water-splitting device according to claim 2, characterized in that: The fixed guide plate (4) is fixed to the bearing end cover (2) by means of bolts (6) and combined washers (7).

4. The top-exit shaft vertical permanent magnet motor shaft extension water-splitting device according to claim 3, characterized in that: The rotating water-spraying disc (5) is fixed on the motor shaft (3) by shrinkage sleeve and has an interference fit with the motor shaft (3).

5. The top-exit shaft vertical permanent magnet motor shaft extension water-splitting device according to claim 4, characterized in that: The guide portion comprises a fixed ring (81) fixed to the edge of the bearing end cover (2), a plurality of circumferentially distributed support sheets (82) are fixed to the upper portion of the fixed ring (81), and an inverted bucket-shaped ring plate (83) is fixed to the other end of the plurality of support sheets (82), the ring plate (83) is opposite to the rotating water-spraying disc (5) in the horizontal direction, and the diameter of the lower end of the ring plate (83) is larger than the diameter of the bearing end cover (2).

6. The top-exit shaft vertical permanent magnet motor shaft extension water-splitting device according to claim 5, characterized in that: The buffer portion comprises a rubber sheet (84) having fine and densely distributed leakage holes. A rubber strip (85) is integrally connected to one side of the rubber sheet (84) near the edge and is fixed to the inner wall of the ring plate (83) through the rubber strip (85).

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