Waterproof gearbox

Abstract

The utility model discloses a waterproof gearbox which comprises a shell, a rear cover and a planetary gearbox assembly, a protrusion is arranged at the front end of the shell 1, a groove matched with the protrusion is formed in a shell body of the planetary gearbox assembly, a sealing gasket is arranged in the groove, and the rear cover is arranged on the rear cover. And the rear end of the shell is clamped with the rear cover, and the shell is extruded, so that the bulge extrudes the sealing gasket in the groove. According to the utility model, the annular embedded structure is used between the shell and the planetary gear box assembly, the rubber / silica gel sealing gasket is used between the shell and the planetary gear box assembly, and the shell is extruded by the rear cover during assembly, so that the sealing gasket deforms to achieve the sealing and waterproof effects when the planetary gear box assembly and the shell extrude the sealing gasket.

Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, and in particular to a waterproof gearbox. Background Technology

[0002] Metal gearboxes are a common type of transmission device, mainly composed of gears, bearings, and housings. They are primarily used to transmit power and change speed and torque. When metal gearboxes are in operation, gaps may appear at the joints between housings, the opening at the output end, and other places, resulting in insufficient waterproofing. Summary of the Invention

[0003] In view of the problems existing in the prior art, the purpose of this utility model is to provide a waterproof gearbox.

[0004] To solve the above problems, the present invention adopts the following technical solution.

[0005] A waterproof gearbox includes a housing, a rear cover, and a planetary gearbox assembly. The front end of the housing is provided with a protrusion, and the housing of the planetary gearbox assembly is provided with a groove that mates with the protrusion. A sealing gasket is provided in the groove. The rear end of the housing is engaged with the rear cover, and the housing is compressed, thereby causing the protrusion to compress the sealing gasket in the groove.

[0006] As a further improvement of this utility model, an output shaft is provided inside the planetary gearbox assembly, and a sealing ring is provided between the output shaft and the housing.

[0007] As a further improvement of this utility model, the sealing ring is U-shaped.

[0008] As a further improvement of this utility model, a wire harness is provided at the end of the planetary gearbox assembly, and an opening for the wire harness to pass through is provided on the rear cover, with a sealing plug interference fit inside the opening.

[0009] As a further improvement of this utility model, the snap-fit ​​joint between the outer shell and the back cover is made using ultrasonic sol-gel.

[0010] Beneficial effects of this utility model

[0011] Compared with existing technologies, the advantages of this utility model are:

[0012] This invention utilizes a ring-shaped inlay structure between the outer shell and the planetary gearbox assembly, with a rubber / silicone sealing gasket in between. During assembly, the rear cover presses against the outer shell, causing the sealing gasket to deform and achieve a sealing and waterproofing effect. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 for Figure 1 Cross-sectional view.

[0015] Figure 3 for Figure 2 Enlarged view of area B.

[0016] Figure 4 for Figure 2 Enlarged view of region C. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1 to 4 A waterproof gearbox includes a housing 1, a rear cover 2, and a planetary gearbox assembly 3. The front end of the housing 1 has a protrusion 11. The housing 31 of the planetary gearbox assembly 3 has a groove 32 that mates with the protrusion 11. A sealing gasket 4 is disposed within the groove 32. The rear end of the housing 1 is engaged with the rear cover 2, causing the housing 1 to be compressed, which in turn causes the protrusion 11 to press against the sealing gasket 4 within the groove 32. This invention utilizes a ring-shaped interlocking structure between the housing 1 and the planetary gearbox assembly 3, with a rubber / silicone sealing gasket 4 in between. During assembly, the rear cover 2 compresses the housing 1, causing the sealing gasket 4 to deform and achieve a sealing and waterproof effect.

[0019] Furthermore, the planetary gearbox assembly 3 is provided with an output shaft 33, and a sealing ring 5 is provided between the output shaft 33 and the housing 31. An appropriate amount of lubricating grease is applied in the middle to keep the sealing ring 5 and the output shaft 33 lubricated, while also strengthening the sealing effect.

[0020] Furthermore, the sealing ring 5 is U-shaped. The opening of the U-shape faces the output shaft 33, providing double-layer waterproofing.

[0021] Furthermore, a wire harness 6 is provided at the end of the planetary gearbox assembly 3, and an opening for the wire harness 6 to pass through is provided on the rear cover 2. A sealing plug 7 is interference-fitted into the opening to achieve a waterproof effect.

[0022] Furthermore, the connection between the outer shell 1 and the rear cover 2 is achieved using ultrasonic sol-gel to achieve a sealing and waterproof effect.

[0023] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A waterproof gearbox, characterized in that, The device includes a housing, a rear cover, and a planetary gearbox assembly. The front end of the housing has a protrusion, and the housing of the planetary gearbox assembly has a groove that mates with the protrusion. A sealing gasket is placed in the groove. The rear end of the housing is engaged with the rear cover, and the housing is compressed, causing the protrusion to press the sealing gasket in the groove.

2. A waterproof gearbox according to claim 1, characterized in that: The planetary gearbox assembly is provided with an output shaft, and a sealing ring is provided between the output shaft and the housing.

3. A waterproof gearbox according to claim 2, characterized in that: The sealing ring is U-shaped.

4. A waterproof gearbox according to claim 1, characterized in that: The planetary gearbox assembly has a wiring harness at its end, and the rear cover has an opening for the wiring harness to pass through, with a sealing plug fitted into the opening.

5. A waterproof gearbox according to claim 1, characterized in that: The connection between the outer shell and the back cover is achieved using ultrasonic bonding.

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