Underwater robot

Abstract

The underwater robot comprises a sealed cabin upper cover and a sealed cabin lower cover, a sealed cavity is defined by the sealed cabin upper cover and the sealed cabin lower cover, a motor is arranged in the sealed cavity, the upper end of a motor shaft of the motor penetrates out of the sealed cavity and then is connected with a load, and the upper end of the motor shaft of the motor is connected with the load. A motor shaft of the motor is coaxially provided with a waterproof assembly used for reducing the torque of the motor shaft of the motor. According to the utility model, the waterproof assembly not only can play a waterproof role, but also can reduce the torque of the motor shaft and reduce the bending degree of the motor shaft caused by the radial force generated by the load on the motor shaft when the motor rotates, thereby reducing the wear of the motor shaft on the waterproof assembly, and improving the reliability of the motor. And the service life of the waterproof assembly is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of robots, in particular to an underwater robot. Background Art

[0002] With the development of society, the demand for swimming pool cleaning is getting higher and higher. Pool cleaning robots need to work underwater for a long time, and the waterproof ability of the motor shaft directly affects the service life of the product. At present, the motor of swimming pool cleaning robots on the market generally uses a single or multiple oil seals to achieve the purpose of waterproofing the motor shaft during movement.

[0003] In this scheme, it is difficult to ensure the concentricity of the motor shaft and the oil seal during the installation process of the motor and the oil seal. In addition, during the operation of the motor, the motor shaft end will be in a certain swing state due to the load. The swing of the motor shaft further increases the concentricity of the motor shaft and the oil seal. When the concentricity exceeds the design range of the oil seal, it will cause rapid wear of the oil seal, greatly reducing the sealing life of the oil seal. Utility Model Content

[0004] The main purpose of the utility model is to propose an underwater robot, which aims to solve the problem of excessive concentricity between the motor and the oil seal during installation, and the problem of increased eccentricity between the motor shaft and the oil seal due to load swing of the motor shaft, reduce the wear of the motor shaft on the oil seal, and increase the service life of the oil seal.

[0005] To achieve the above-mentioned purpose, the utility model provides an underwater robot, comprising: a sealed cabin upper cover and a sealed cabin lower cover, the sealed cabin upper cover and the sealed cabin lower cover are surrounded to form a sealed cavity, a motor is arranged in the sealed cavity, the upper end of the motor shaft of the motor passes through the sealed cavity and is connected to a load, and a waterproof component for reducing the motor shaft torque of the motor is coaxially arranged on the motor shaft of the motor.

[0006] A further technical solution of the utility model is that the waterproof component includes an oil seal and a bearing coaxially arranged on the motor shaft.

[0007] A further technical solution of the utility model is that there are two oil seals, and the bearing is arranged between the two oil seals.

[0008] A further technical solution of the utility model is that the motor, the oil seal and the bearing are arranged in the lower cover of the sealing cabin.

[0009] A further technical solution of the utility model is that mounting holes for mounting the motor, the oil seal and the bearing are arranged in the lower cover of the sealed cabin.

[0010] A further technical solution of the utility model is that a through hole for passing the motor shaft of the motor is opened on the top of the sealed cabin cover, and one of the two oil seals abuts against the top inner wall of the sealed upper cover to seal the through hole.

[0011] A further technical solution of the utility model is that an O-type waterproof sealing ring is arranged between the sealed cabin upper cover and the sealed cabin lower cover.

[0012] A further technical solution of the utility model is that the sealed cabin upper cover and the sealed cabin lower cover are detachably connected by screws.

[0013] A further technical solution of the utility model is that the load is a blade or a transmission gear.

[0014] The beneficial effects of the underwater robot of the utility model are:

[0015] The utility model, through the above technical scheme, comprises: a sealed cabin upper cover and a sealed cabin lower cover, the sealed cabin upper cover and the sealed cabin lower cover are surrounded to form a sealed cavity, a motor is arranged in the sealed cavity, the upper end of the motor shaft of the motor passes through the sealed cavity and is connected to a load, a waterproof component for reducing the motor shaft torque of the motor is coaxially arranged on the motor shaft of the motor, which not only plays a waterproof role, but also can reduce the torque of the motor shaft when the motor rotates, reduce the radial force generated by the load on the motor shaft and cause the bending degree of the motor shaft, thereby reducing the wear of the motor shaft on the waterproof component and extending the service life of the waterproof component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the exploded structure of a preferred embodiment of the underwater robot of the utility model;

[0018] Figure 2 It is a cross-sectional view of the underwater robot of the utility model;

[0019] Figure 3 It is a schematic diagram of the overall structure of a preferred embodiment of the underwater robot of the utility model.

[0020] Description of Figure Numbers:

[0021] Sealed cabin upper cover 1; sealed cabin lower cover 2; motor 3; motor shaft 4; load 5; waterproof component 6; oil seal 7; bearing 8; O-type waterproof sealing ring 9.

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In order to solve the problem that the motor has excessive concentricity with the oil seal during installation, and the motor shaft has increased eccentricity with the oil seal due to load swing, reduce the wear of the motor shaft on the oil seal, and increase the service life of the oil seal, the utility model proposes a solution.

[0025] Specifically, the utility model provides an underwater robot, which can be used for cleaning swimming pools.

[0026] Please refer to Figures 1 to 3 A preferred embodiment of the underwater robot of the utility model comprises a sealed cabin upper cover 1 and a sealed cabin lower cover 2, wherein the sealed cabin upper cover 1 and the sealed cabin lower cover 2 surround a sealed cavity.

[0027] A motor 3 is arranged in the sealed cavity, and the upper end of the motor shaft 4 of the motor 3 is connected to the load 5 after passing through the sealed cavity. A waterproof component 6 for reducing the torque of the motor shaft 4 of the motor 3 is coaxially arranged on the motor shaft 4 of the motor 3, and the waterproof component 6 is also used to reduce the torque of the motor shaft 4 of the motor 3.

[0028] In this embodiment, the waterproof component 6 coaxially arranged on the motor shaft 4 of the motor 3 can not only play a waterproof role, but also can reduce the torque of the motor shaft 4 when the motor 3 rotates, reduce the radial force generated by the load 5 on the motor shaft 4 and cause the bending degree of the motor shaft 4, thereby reducing the wear of the motor shaft 4 on the waterproof component 6 and extending the service life of the waterproof component 6.

[0029] Furthermore, in this embodiment, the waterproof component 6 includes an oil seal 7 and a bearing 8 coaxially arranged on the motor shaft 4 .

[0030] As an implementation scheme, in this embodiment, there are two oil seals 7 , and the bearing 8 is disposed between the two oil seals 7 .

[0031] In this embodiment, the coaxiality between the bearing 8 and the two oil seals 7, and between the motor shaft 4 and the bearing 8 is very small, so it can be ensured that the motor shaft 4, the oil seal 7 and the bearing 8 are on the same axis.

[0032] In this embodiment, the torque of the motor shaft 4 can be reduced by the bearing 8. When the motor shaft 4 rotates, the radial force generated by the load 5 on the motor shaft 4 and the bending degree of the motor shaft 4 can be reduced, thereby reducing the wear of the motor shaft 4 on the oil seal 7 and extending the service life of the oil seal 7.

[0033] In this embodiment, the motor 3 , the oil seal 7 and the bearing 8 are arranged in the sealing cabin lower cover 1 .

[0034] The sealed cabin lower cover 1 is provided with mounting holes for mounting the motor 3, the oil seal 7 and the bearing 8, and the top of the sealed cabin upper cover 1 is provided with a through hole for passing the motor shaft 4 of the motor 3, and one of the two oil seals 7 abuts against the top inner wall of the sealed upper cover to seal the through hole.

[0035] During assembly, first insert the motor shaft 4 into the inner holes of the two oil seals 7 and the bearing 8, then fix the motor 3 to the sealed cabin lower cover 2 by screws, and then assemble the sealed cabin upper cover 1, and pass the motor shaft 4 through the through hole to connect with the load 5.

[0036] Furthermore, in this embodiment, the sealed cabin upper cover 1 and the sealed cabin lower cover 2 are detachably connected by screws, and an O-type waterproof sealing ring 9 is provided between the sealed cabin upper cover 1 and the sealed cabin lower cover 2. In this embodiment, by providing the O-type waterproof sealing ring 9 between the sealed cabin upper cover 1 and the sealed cabin lower cover 2, the waterproof performance of the entire underwater robot can be further improved.

[0037] In this embodiment, the load 5 may be, for example, a blade or a transmission gear.

[0038] The beneficial effects of the underwater robot of the utility model are:

[0039] The utility model, through the above technical scheme, comprises: a sealed cabin upper cover and a sealed cabin lower cover, the sealed cabin upper cover and the sealed cabin lower cover are surrounded to form a sealed cavity, a motor is arranged in the sealed cavity, the upper end of the motor shaft of the motor passes through the sealed cavity and is connected to a load, a waterproof component for reducing the motor shaft torque of the motor is coaxially arranged on the motor shaft of the motor, which not only plays a waterproof role, but also can reduce the torque of the motor shaft when the motor rotates, reduce the radial force generated by the load on the motor shaft and cause the bending degree of the motor shaft, thereby reducing the wear of the motor shaft on the waterproof component and extending the service life of the waterproof component.

[0040] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the concept of the utility model, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. An underwater robot, characterized in that: include: A sealed cabin upper cover and a sealed cabin lower cover are formed by surrounding a sealed cavity, a motor is arranged in the sealed cavity, the upper end of the motor shaft of the motor passes through the sealed cavity and is connected to a load, and a waterproof component for reducing the motor shaft torque of the motor is coaxially arranged on the motor shaft of the motor.

2. The underwater robot according to claim 1, characterized in that: The waterproof assembly includes an oil seal and a bearing coaxially arranged on the motor shaft.

3. The underwater robot according to claim 2, characterized in that: There are two oil seals, and the bearing is arranged between the two oil seals.

4. The underwater robot according to claim 3, characterized in that: The motor, the oil seal and the bearing are arranged in the lower cover of the sealed cabin.

5. The underwater robot according to claim 4, characterized in that: The sealing cabin lower cover is provided with mounting holes for mounting the motor, the oil seal and the bearing.

6. The underwater robot according to claim 5, characterized in that: A through hole for passing the motor shaft of the motor is opened on the top of the sealed cabin upper cover, and one of the two oil seals abuts against the top inner wall of the sealed cabin upper cover to seal the through hole.

7. The underwater robot according to claim 1, characterized in that: An O-type waterproof sealing ring is arranged between the sealed cabin upper cover and the sealed cabin lower cover.

8. The underwater robot according to claim 7, characterized in that: The sealed cabin upper cover and the sealed cabin lower cover are detachably connected via screws.

9. The underwater robot according to claim 1, characterized in that: The load is a blade or a transmission gear.

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