Oil smoke prevention gear motor and range hood

Abstract

The utility model belongs to the field of machining, and discloses an oil smoke prevention speed reduction motor which comprises a speed reduction box, a shell with a containing cavity and a cover body connected with the shell, a gear transmission structure and a transmission shaft meshed with the gear transmission structure are installed in the containing cavity, the transmission shaft is connected with a shaft sleeve, and the shaft sleeve is fixed on the cover body. The transmission shaft penetrates through the reduction gearbox cover body and the shaft sleeve to be connected with an external component; the motor is in transmission connection with a gear transmission structure in the reduction gearbox; the first sealing ring is arranged between the reduction gearbox and the motor, is in sealing contact with the gap and prevents impurities from entering the reduction gearbox through the gap; the second sealing ring is arranged between the shell and the cover body; and the third sealing ring is arranged between the transmission shaft and the shaft sleeve. By additionally arranging the sealing ring, oil smoke is prevented, the overall transmission stability is improved, vibration generated in the operation process is reduced, meanwhile, noise is reduced, and the use feeling is improved. The utility model further provides a range hood.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing, and specifically relates to an oil fume-proof geared motor and an oil fume hood. Background Technology

[0002] A geared motor consists of a gearbox housing connected to a motor. Inside the gearbox housing is a gear transmission structure connected to the motor's output shaft. Existing geared motors generate significant noise during operation. Furthermore, if the operating environment is heavily polluted with oil fumes and dust, impurities can enter the gearbox housing through the connection between the motor's output shaft and the gearbox housing, affecting the cleanliness of the internal gear transmission structure, shortening its lifespan, and increasing operating noise. Utility Model Content

[0003] To solve the above-mentioned technical problems, the purpose of this utility model is to provide an oil fume-proof geared motor and an oil fume hood.

[0004] To achieve the goal of solving the above problems, as a first aspect, the technical solution adopted by this utility model is to provide an oil fume-proof geared motor, comprising,

[0005] A gearbox includes a housing with a receiving cavity and a cover connected to the housing. A gear transmission structure and a transmission shaft meshing with it are installed in the receiving cavity. The transmission shaft is connected to a bushing, which is fixed to the cover. The transmission shaft passes through the gearbox cover and the bushing and is connected to an external component.

[0006] The motor is connected to the gear transmission structure inside the gearbox.

[0007] The first sealing ring is disposed between the gearbox and the motor to seal the contact gap and prevent impurities from entering the gearbox through the gap.

[0008] A second sealing ring is disposed between the housing and the cover.

[0009] The third sealing ring is disposed between the drive shaft and the bushing.

[0010] According to this utility model, the outer surface of the gearbox near the motor is provided with a first groove for accommodating the first sealing ring.

[0011] According to this utility model, a third sealing ring fixing groove is integrally provided at the position where the transmission shaft and the bushing mate.

[0012] According to this utility model, the output shaft of the motor is further provided with a worm gear, which meshes with a gear transmission structure.

[0013] According to this utility model, the inner surface of the bottom plate of the housing is provided with a connecting protrusion, and a transition post is detachably connected to the connecting protrusion to fill the space between the second sealing ring and the connecting protrusion, thereby reducing the generation of vibration and noise.

[0014] According to this utility model, the connecting protrusion is further engaged and fixed with the transition post.

[0015] Secondly, this utility model also provides a range hood that uses the aforementioned oil fume-proof geared motor.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention solves the problems of noise and unstable transmission by adding a sealing ring to prevent oil fumes, improves the overall transmission stability, reduces the vibration generated during operation, and at the same time reduces noise and improves the user experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an oil fume-proof geared motor according to the present invention;

[0018] Figure 2 for Figure 1 An explosion diagram;

[0019] Figure 3 This is an exploded view of the assembly of the shell and the first sealing ring of this utility model;

[0020] Figure 4 This is a first-view structural schematic diagram of the transition column of this utility model;

[0021] Figure 5 This is a first-view structural diagram of the shell and connecting protrusion of this utility model;

[0022] Figure 6 This is a schematic diagram of the motor structure of this utility model.

[0023] Among them, 100-gearbox, 110-first slot, 120-housing, 121-connecting protrusion, 122-threaded blind hole, 130-cover, 200-motor, 210-worm gear, 300-first sealing ring, 400-second sealing ring, 500-gear transmission structure, 600-drive shaft, 610-third sealing ring fixing groove, 700-shaft sleeve, 800-third sealing ring, 900-transition column, 910-through hole, 920-outer column, 1000-bolt, 1100-fixing screw. Detailed Implementation

[0024] To make this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings:

[0025] like Figure 1-6 As shown in the figure, this application provides an oil fume-proof geared motor, which is installed on a range hood to provide power for extracting oil fumes. The oil fume-proof geared motor includes a gearbox 100 and a motor 200 connected thereto. The motor 200 serves as a power source, transmitting motion to the gearbox 100 to achieve power transmission. A first slot 110 is formed on the outer surface of the gearbox 100 near the motor 200. A first sealing ring 300 is embedded in the first slot 110, which not only fills the gap between the motor 200 and the gearbox 100, reducing the entry of dust or oil fumes into the gearbox 100 through this gap, but also prevents the motor 200 from making hard contact with the gearbox 100, thus providing a buffering and shock-absorbing effect during use.

[0026] Specifically, the gearbox 100 includes a housing 120 with a receiving cavity and a cover 130 that is fastened to the opening at the top of the housing 120. A second sealing ring 400 is provided at the connection between the housing 120 and the cover 130. A fixing screw 1100 passes through the cover 130 and the second sealing ring 400 and is fixedly connected to the housing 120, thereby improving the connection sealing between the housing 120 and the cover 130.

[0027] The housing 120 houses a gear transmission structure 500 and a drive shaft 600 meshing with it. One end of the drive shaft 600 is coaxially connected to a bushing 700. The drive shaft 600 passes through the gearbox cover 130 and the bushing 700, connecting to external components. The output shaft of the motor 200 is equipped with a worm gear 210, which meshes with the gear transmission structure 500, transmitting power to the gear transmission structure 500. The gear transmission structure 500 then transmits power to the meshing drive shaft 600, which in turn transmits power to an external transmission mechanism. A third sealing ring 800 is installed between the contact surfaces of the bushing 700 and the drive shaft 600, and is placed within a third sealing ring fixing groove 610.

[0028] In this embodiment, a connecting protrusion 121 is provided on the inner surface of the bottom plate of the housing 120. The connecting protrusion 121 is integrally provided with a threaded blind hole 122. A transition post 900 is detachably connected to the connecting protrusion 121, and the transition post 900 is integrally provided with a through hole 910 along the axis. The bolt 1000 passes through the connection part of the cover 130, the second sealing ring 400, and the transition post 900, and is then fixedly connected to the threaded blind hole 122 of the connecting protrusion to prevent the bolt 1000 from being suspended. The connecting protrusion 121 and the transition post 900 are snapped together for easy assembly and subsequent replacement.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make several improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art based on the above-disclosed technical content without departing from the spirit and scope of this utility model are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model still fall within the scope of the technical solution of this utility model.

Claims

1. A geared motor for preventing oil fumes, characterized in that, include, A gearbox includes a housing with a receiving cavity and a cover connected to the housing. A gear transmission structure and a transmission shaft meshing with it are installed in the receiving cavity. The transmission shaft is connected to a bushing, which is fixed to the cover. The transmission shaft passes through the gearbox cover and the bushing and is connected to an external component. The motor is connected to the gear transmission structure inside the gearbox. The first sealing ring is disposed between the gearbox and the motor to seal the contact gap and prevent impurities from entering the gearbox through the gap. A second sealing ring is disposed between the housing and the cover. The third sealing ring is disposed between the drive shaft and the bushing.

2. The oil fume-proof geared motor as described in claim 1, characterized in that, The outer surface of the gearbox near the motor has a first groove for accommodating the first sealing ring.

3. The oil fume-proof geared motor as described in claim 1, characterized in that, The drive shaft and the bushing are integrally provided with a third sealing ring fixing groove at the position where they mate.

4. The oil fume-proof geared motor as described in claim 1, characterized in that, The motor's output shaft is equipped with a worm gear, which meshes with a gear transmission structure.

5. The oil fume-proof geared motor as described in claim 1, characterized in that, The inner surface of the bottom plate of the housing is provided with a connecting protrusion, and a transition post is detachably connected to the connecting protrusion to fill the space between the second sealing ring and the connecting protrusion.

6. The oil fume-proof geared motor as described in claim 5, characterized in that, The connecting protrusion is engaged and fixed with the transition post.

7. A range hood, characterized in that, The oil fume-proof geared motor as described in any one of claims 1-6 is adopted.

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