Waterproof speed reducer

Abstract

The utility model discloses a waterproof speed reducer, and relates to the field of speed reducers. According to the utility model, the connection position of the rear cover of the motor is adjusted, and the conical shield, the sealing gasket and the sealing cover are added, so that the most probable water seepage positions are eradicated, and the normal working function of the conventional speed reducer is ensured to be exposed in the rain at the lowest investment cost.

Description

Technical Field

[0001] A waterproof speed reducer of the present utility model relates to the field of speed reducers. Background Art

[0002] With the development of technology, the demand for customized speed reducers is increasing. For example, in environments such as the rainy season, there is a market for speed reducers that are inexpensive and do not have additional rain protection equipment, but there are few suitable ones. To meet this niche market, the development of rainproof speed reducers is very necessary. Summary of the Utility Model

[0003] The technical problem to be solved by the present utility model is to provide a waterproof speed reducer.

[0004] To solve the above technical problem, the present utility model adopts the following technical solutions:

[0005] A waterproof speed reducer includes a motor housing and a gear housing connected to the front end of the motor housing. There is a gear housing rear cover between the motor housing and the gear housing, and a motor rear cover at the end of the motor housing. The improvement of the present utility model is that a screw passes through the edge of the motor rear cover and then is screwed into the gear housing rear cover and tightened along the gap between the heat dissipation ribs of the motor housing. In the prior art, the straight screw passes through the motor rear cover and the motor housing and then is fixed to the gear housing rear cover. Thus, rainwater may enter the interior of the motor housing along the screw. After the improvement, the situation of rainwater seeping into the motor along the bolt is eliminated. And the screw inside the motor housing will affect the magnetic field lines of the motor. After the improvement, passing from the outside eliminates this influence.

[0006] Further, there is a rotor shaft in the motor housing of the present utility model. The tail end of the rotor shaft passes through the motor rear cover. A fan is installed at the tail end of the rotor shaft. There is a conical shield below the fan. The conical shield is sleeved on the tail end of the rotor shaft and fixed to the end face of the motor rear cover. And there is a gasket between the conical shield and the end face of the motor rear cover. There is a sealing cover at the end of the fan. In the prior art, rainwater may enter the interior of the motor housing along the gap between the tail end of the rotor shaft and the motor rear cover. After the improvement, this situation is eliminated, ensuring the safe operation of the motor.

[0007] The advantages of the present utility model are as follows: The connection position of the motor rear cover is adjusted, and at the same time, a conical shield, a gasket and a sealing cover are added. With this design combination, the most likely water seepage positions are eliminated, realizing ensuring that a conventional speed reducer can be exposed in the rain with the lowest input cost and performing normal working functions. Description of the Drawings

[0008] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0009] Figure 1 Schematic diagram of the three - dimensional structure of the present utility model;

[0010] Figure 2 Schematic sectional view of some components of the present utility model;

[0011] Figure 3 Exploded view of the structure of the present utility model;

[0012] Figure 4 Schematic diagram of the bottom structure of the fan of the present utility model;

[0013] Figure 5 Schematic diagram of the assembly structure of the rear cover of the motor of the present utility model;

[0014] Reference numerals:

[0015] Motor housing 1, gear housing 2, rear cover of gear housing 3, rear cover of motor 4, screw 5, rotor shaft 6, fan 7, insertion post 7a, shaft fixing post 7b, conical shield 8, upper post 8a, gasket 9, seal cover 10. Detailed implementation manners

[0016] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0017] The following will, with reference to the drawings, elaborate on the technical solutions provided by each embodiment of the present application.

[0018] According to Figures 1-5 A waterproof speed reducer shown, which includes a motor housing 1 and a gear housing 2 connected to the front end of the motor housing 1. There is a rear cover of gear housing 3 between the motor housing 1 and the gear housing 2, and a rear cover of motor 4 at the end of the motor housing 1. The improvement of the present utility model lies in that the rear cover of motor 4 is connected to the motor housing 1 through a screw 5. The screw 5 passes through the edge of the rear cover of motor 4 and then is screwed into the rear cover of gear housing 3 and fastened along the gap between the heat dissipation ribs of the motor housing 1.

[0019] There is a rotor shaft 6 inside the motor housing 1 of the present utility model. The tail end of the rotor shaft 6 penetrates through the rear cover of motor 4. A fan 7 is installed at the tail end of the rotor shaft 6. There is a conical shield 8 below the fan 7. The conical shield 8 is sleeved on the tail end of the rotor shaft 6 and fixed to the end face of the rear cover of motor 4. And there is a gasket 9 between the conical shield 8 and the end face of the rear cover of motor 4. There is a seal cover 10 at the end of the fan 7.

[0020] The overall assembly steps of the present utility model are as follows: First, the screw 5 passes through the edge of the motor rear cover 4 and is screwed into and fastened to the gear housing rear cover 3 along the gap between the heat dissipation ribs of the motor housing 1; then, the gasket 9 and the conical shield 8 are fixed to the motor rear cover 4 with bolts; then, the insertion post 7a at the bottom of the fan 7 is sleeved into the upper post 8a of the conical shield 8, and the insertion post 7a does not contact the upper post 8a, and a bolt is passed through the shaft fixing post 7b above the fan 7 and the tail end of the rotor shaft 6 and locked with a nut. Then, the sealing cover 10 is installed at the tail end of the rotor shaft 6 and fixed with bolts.

[0021] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, commodity or device including the element.

[0022] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A waterproof reducer, comprising a motor housing (1) and a gear housing (2) connected to the front end of the motor housing (1), a gear housing rear cover (3) between the motor housing (1) and the gear housing (2), and a motor rear cover (4) at the end of the motor housing (1), characterized in that: The motor rear cover (4) is connected to the motor housing (1) via a screw (5). The screw (5) passes through the edge of the motor rear cover (4) and is screwed into the gear housing rear cover (3) along the gap between the heat dissipation ribs of the motor housing (1) and is tightened.

2. A waterproof reducer according to claim 1, characterized in that: A rotor shaft (6) is arranged in a motor housing (1), the tail end of the rotor shaft (6) passes through the motor rear cover (4), a fan (7) is installed at the tail end of the rotor shaft (6), a conical shield (8) is arranged below the fan (7), the conical shield (8) is sleeved on the end of the rotor shaft (6) and is fixed to the end face of the motor rear cover (4), a sealing gasket (9) is arranged between the conical shield (8) and the end face of the motor rear cover (4), and a sealing cover (10) is arranged at the end of the fan (7).

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