Underwater gear motor with sealing device

Abstract

The utility model relates to the technical field of speed reducing motors, and discloses an underwater speed reducing motor with a sealing device, which comprises a sealing shell, a speed reducing motor and a sealing plate are arranged in the sealing shell, the sealing plate is positioned on one side of the speed reducing motor, an output shaft of the speed reducing motor penetrates through the sealing plate to the outside of the sealing shell, and the sealing device is arranged in the sealing shell. A circular hole matched with an output shaft of the gear motor is formed in the sealing plate, and a sealing ring is connected to the inner wall of the circular hole in a clamped mode. According to the technical scheme, under the action of the sealing plate, the sealing performance of the sealing shell can be further improved, when water permeates into the sealing shell, the sealing plate can block the permeated water, and the permeated water can enter the water collecting box through the connecting pipe, so that the water collecting box is not damaged. Meanwhile, the sealing ring can improve the sealing performance between the round hole in the sealing plate and the output shaft of the speed reduction motor, the overall sealing performance of equipment is improved, and the speed reduction motor is prevented from being damaged when encountering water.

Description

Technical Field

[0001] The utility model relates to the technical field of reduction motors, in particular to an underwater reduction motor with a sealing device. Background Art

[0002] A reduction motor is an integration of a reducer and a motor. This integration is also commonly called a gear motor or gear motor, and is usually assembled and supplied as a complete set by a professional reducer manufacturer. Reducer motors are widely used in the steel industry, machinery industry, etc. The advantage of using a reduction motor is that it simplifies the design and saves space.

[0003] In the patent document with the published announcement number CN203702999U, an underwater motor reduction device is disclosed, including a sealed motor and a reduction mechanism, the reduction mechanism includes a sealed box, a pair of meshing driving bevel gears and driven bevel gears are installed in the sealed box, wherein the driving bevel gear is installed at the output shaft end of the sealed motor, and the driven bevel gear is installed on the gear shaft vertically arranged with the motor output shaft, the sealed box includes left and right support plates, upper and lower cover plates, side cover plates and motor mounting plates, wherein each cover plate is fixedly installed on the left and right support plates by fasteners at the edge, and the two ends of the gear shaft extend from the left and right support plates respectively, and are rotatably supported on the left and right support plates by sliding bearings. The underwater motor reduction device has a simple structure, the motor sealing structure and the reduction mechanism sealing structure are independent of each other, and the working performance is reliable, wherein the reduction mechanism sealing structure is sealed by a detachable cover plate, which is convenient for repair and maintenance, and therefore is very suitable for popularization and implementation.

[0004] The reduction motor in the prior art is usually sealed by a sealing shell when it is underwater, and the output shaft of the reduction motor needs to be passed through the outside of the sealing shell to be connected to external equipment. A sealing ring is usually provided on the inner wall of the circular hole opened on the sealing shell to prevent water from entering the interior of the sealing shell through the circular hole. However, the sealing ring will age after long-term use, causing water to penetrate into the interior of the sealing shell and cause damage to the reduction motor. Therefore, an underwater reduction motor with a sealing device is needed. Utility Model Content

[0005] The purpose of the utility model is to provide an underwater reduction motor with a sealing device, which solves the problems raised in the background technology.

[0006] An embodiment of the present application provides an underwater reduction motor with a sealing device, including a sealing shell, wherein the reduction motor and a sealing plate are arranged inside the sealing shell, the sealing plate is located on one side of the reduction motor, the output shaft of the reduction motor is passed through the sealing plate to the outside of the sealing shell, a circular hole matched with the output shaft of the reduction motor is opened on the sealing plate, a sealing ring is snap-connected to the inner wall of the circular hole, a connecting pipe is fixedly connected to the bottom end of the sealing shell, a water collecting box is fixedly connected to the bottom end of the connecting pipe, and a drain pipe is arranged on the front wall of the water collecting box.

[0007] By adopting the above technical scheme, under the action of the sealing plate, the sealing performance of the sealing shell can be further improved. When water penetrates into the interior of the sealing shell, the sealing plate can block the penetrated water, and the penetrated water can enter the interior of the water collecting box through the connecting pipe. At the same time, the sealing ring can improve the sealing performance between the circular hole on the sealing plate and the output shaft of the reduction motor, thereby improving the overall sealing performance of the equipment to prevent the reduction motor from being damaged by water.

[0008] Optionally, two groups of limit blocks are fixedly connected to the inside of the circular hole, and the two groups of limit blocks are respectively located on both sides of the sealing ring.

[0009] By adopting the above technical solution, the sealing ring plays a role of limiting the position and preventing the sealing ring from falling.

[0010] Optionally, a valve is installed on the drain pipe.

[0011] By adopting the above technical solution, the drain pipe can be opened or closed through the valve.

[0012] Optionally, both ends of the reduction motor are fixedly connected with reinforcement rods, and the two reinforcement rods are respectively fixedly connected to the upper and lower inner walls of the sealing shell.

[0013] The adoption of the above technical solution is helpful to improve the firmness of the installation of the reduction motor.

[0014] Optionally, a connecting plate is fixedly connected between the sealing shell and the sealing plate, and two connecting plates are provided in total, and the two connecting plates are symmetrically arranged on the left and right.

[0015] The adoption of the above technical solution is helpful to improve the firmness of the installation of the sealing plate.

[0016] Optionally, the front wall of the sealed shell is rotatably connected to a sealed door via a rotating shaft, and the front wall of the sealed door is fixedly connected to a handle.

[0017] The adoption of the technical solution is conducive to the flexible disassembly and assembly of the reduction motor.

[0018] Optionally, the sealing shell is communicated with the connecting pipe.

[0019] By adopting the above technical solution, the water that penetrates into the sealed shell can be discharged into the water collecting box through the connecting pipe.

[0020] Optionally, the sealing shell is made of stainless steel.

[0021] The adoption of the above technical solution is helpful to improve the corrosion resistance of the sealed shell.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The technical solution of the present application can further improve the sealing performance of the sealing shell under the action of the sealing plate. When water penetrates into the interior of the sealing shell, the sealing plate can block the penetrated water, and the penetrated water can enter the interior of the water collecting box through the connecting pipe. At the same time, the sealing ring can improve the sealing performance between the circular hole on the sealing plate and the output shaft of the reduction motor, thereby improving the overall sealing performance of the equipment to prevent the reduction motor from being damaged by water. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0025] Figure 1 This is a schematic diagram of the internal structure of an underwater reduction motor with a sealing device according to the utility model;

[0026] Figure 2 This is a schematic diagram of the overall structure of an underwater reduction motor with a sealing device according to the utility model;

[0027] Figure 3 It is a side structural schematic diagram of a sealing plate of an underwater reduction motor with a sealing device according to the utility model;

[0028] Figure 4 The utility model is a schematic diagram of a top view of a sealing plate of an underwater reduction motor with a sealing device.

[0029] In the figure: 1. Sealing shell; 2. Connecting plate; 3. Reducer motor; 4. Valve; 5. Drain pipe; 6. Water collecting box; 7. Connecting pipe; 8. Sealing plate; 9. Round hole; 10. Limit block; 11. Sealing ring; 12. Handle; 13. Sealing door; 14. Reinforcement rod. DETAILED DESCRIPTION

[0030] See also Figure 1-4The utility model provides a technical solution: an underwater reduction motor with a sealing device, comprising a sealing shell 1, a reduction motor 3 and a sealing plate 8 are arranged inside the sealing shell 1, the sealing plate 8 is located on one side of the reduction motor 3, the output shaft of the reduction motor 3 is passed through the sealing plate 8 to the outside of the sealing shell 1, a circular hole 9 matched with the output shaft of the reduction motor 3 is opened on the sealing plate 8, a sealing ring 11 is snap-connected to the inner wall of the circular hole 9, a connecting pipe 7 is fixedly connected to the bottom end of the sealing shell 1, a water collecting box 6 is fixedly connected to the bottom end of the connecting pipe 7, and a drainage pipe 5 is arranged on the front wall of the water collecting box 6.

[0031] In the technical solution of the utility model, if Figure 3 As shown, two groups of limit blocks 10 are fixedly connected inside the circular hole 9, and the two groups of limit blocks 10 are respectively located on both sides of the sealing ring 11; they play the role of limiting the sealing ring 11 to prevent the sealing ring 11 from falling.

[0032] In the technical solution of the utility model, if Figure 1 As shown, a valve 4 is installed on the drain pipe 5; the drain pipe 5 can be opened or closed by the valve 4.

[0033] In the technical solution of the utility model, if Figure 1 As shown, both ends of the reduction motor 3 are fixedly connected with reinforcement rods 14 , and the two reinforcement rods 14 are respectively fixedly connected to the upper and lower inner walls of the sealing shell 1 , which is beneficial to improve the firmness of the installation of the reduction motor 3 .

[0034] In the technical solution of the utility model, if Figure 1 and Figure 4 As shown, a connecting plate 2 is fixedly connected between the sealing housing 1 and the sealing plate 8 , and two connecting plates 2 are provided in total, and the two connecting plates 2 are symmetrically arranged on the left and right, which is beneficial to improving the firmness of the installation of the sealing plate 8 .

[0035] In the technical solution of the utility model, if Figure 2 As shown, the front wall of the sealed housing 1 is rotatably connected to a sealed door 13 via a rotating shaft, and the front wall of the sealed door 13 is fixedly connected to a handle 12 , which is conducive to flexible disassembly and assembly of the reduction motor 3 .

[0036] In the technical solution of the utility model, if Figure 1 As shown, the sealed housing 1 is connected to the connecting pipe 7 , which facilitates the water that penetrates into the sealed housing 1 to be discharged into the water collecting box 6 through the connecting pipe 7 .

[0037] In the technical solution of the utility model, if Figure 1 As shown, the sealing housing 1 is made of stainless steel, which is beneficial to improving the corrosion resistance of the sealing housing 1.

[0038] When in use, under the action of the sealing plate 8, the sealing performance of the sealing shell 1 can be further improved. When water penetrates into the interior of the sealing shell 1, the sealing plate 8 can block the penetrated water, and the penetrated water can enter the interior of the water collecting box 6 through the connecting pipe 7, thereby reducing the water storage capacity inside the sealing shell 1 as much as possible. At the same time, the sealing ring 11 can improve the sealing performance between the circular hole 9 on the sealing plate 8 and the output shaft of the reduction motor 3, thereby improving the overall sealing performance of the equipment to prevent the reduction motor 3 from being damaged by water.

[0039] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An underwater reduction motor with a sealing device, characterized in that: The invention comprises a sealed housing (1), wherein a reduction motor (3) and a sealing plate (8) are arranged inside the sealed housing (1), wherein the sealing plate (8) is located on one side of the reduction motor (3), wherein the output shaft of the reduction motor (3) is passed through the sealing plate (8) to the outside of the sealed housing (1), wherein a circular hole (9) matching the output shaft of the reduction motor (3) is opened on the sealing plate (8), wherein a sealing ring (11) is snap-fittedly connected to the inner wall of the circular hole (9), wherein the bottom end of the sealed housing (1) is fixedly connected to a connecting pipe (7), wherein the bottom end of the connecting pipe (7) is fixedly connected to a water collecting box (6), wherein a drainage pipe (5) is arranged on the front wall of the water collecting box (6).

2. The underwater reduction motor with a sealing device according to claim 1, characterized in that: Two groups of limit blocks (10) are fixedly connected inside the circular hole (9), and the two groups of limit blocks (10) are respectively located on two sides of the sealing ring (11).

3. The underwater reduction motor with a sealing device according to claim 1, characterized in that: A valve (4) is installed on the drainage pipe (5).

4. The underwater reduction motor with a sealing device according to claim 1, characterized in that: Both ends of the reduction motor (3) are fixedly connected to reinforcement rods (14), and the two reinforcement rods (14) are respectively fixedly connected to the upper and lower inner walls of the sealing housing (1).

5. The underwater reduction motor with a sealing device according to claim 1, characterized in that: A connecting plate (2) is fixedly connected between the sealing housing (1) and the sealing plate (8), and two connecting plates (2) are provided in total, and the two connecting plates (2) are symmetrically arranged on the left and right.

6. The underwater reduction motor with a sealing device according to claim 1, characterized in that: The front wall of the sealed housing (1) is rotatably connected to a sealed door (13) via a rotating shaft, and the front wall of the sealed door (13) is fixedly connected to a handle (12).

7. The underwater reduction motor with a sealing device according to claim 1, characterized in that: The sealing housing (1) and the connecting pipe (7) are connected.

8. The underwater reduction motor with a sealing device according to claim 1, characterized in that: The sealing housing (1) is made of stainless steel.

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