A gear motor for a garage door

Abstract

The utility model discloses a kind of gear motor for garage door, including motor body, output shaft and reducer box, gear and bearing assembly are equipped in reducer box, worm part of the rotating shaft end portion of motor body is engaged with gear;Reducer box includes worm wheel box and cover plate, one end of output shaft is connected with gear, the other end is through bearing assembly and extends to the outside of worm wheel box;One end of worm wheel box is equipped with bearing part, the other end is equipped with the accommodation cavity of installation gear, first bearing chamber and second bearing chamber are equipped in bearing part, bearing assembly includes ball bearing and oil-containing bearing, ball bearing is installed in first bearing chamber, oil-containing bearing is installed in second bearing chamber, the other end of output shaft respectively passes through ball bearing and oil-containing bearing and extends to the outside of worm wheel box, when motor radial force, ball bearing supports motor radial force, can effectively guarantee motor normal operation, will not appear wear failure phenomenon, simultaneously increase the strength of reducer box.

Description

Technical Field

[0001] This utility model relates to a geared motor for garage doors. Background Technology

[0002] Garage door motor output shafts are typically supported by powder metallurgy oil-impregnated bearings. These are ring-shaped oil-impregnated bearings made of powder metallurgy, fitted around the output bearing and embedded in the reduction gearbox. This type of support structure experiences reduced lubrication performance under high temperature and humidity conditions, making it prone to output shaft seizure and shortening its lifespan after prolonged use. Summary of the Invention

[0003] The purpose of this invention is to provide a geared motor for garage doors, which solves the technical problem in the prior art where the lubrication performance of the support structure decreases under high temperature and high humidity conditions, and the output shaft is prone to jamming and the lifespan is reduced after long-term use.

[0004] The technical solution of this utility model is implemented as follows:

[0005] This utility model provides a geared motor for garage doors, including a motor body, an output shaft and a reducer housing. The reducer housing is equipped with a gear and bearing assembly. The worm gear at the end of the motor body's shaft meshes with the gear. The reducer housing includes a worm gear box and a cover plate. The cover plate is fixed to the worm gear box with screws. One end of the output shaft is connected to the gear, and the other end passes through the bearing assembly and extends to the outside of the worm gear box.

[0006] One end of the worm gear box is provided with a bearing section, and the other end is provided with a receiving cavity for installing gears. A cover plate is used to cover the receiving cavity. The bearing section is provided with a first bearing chamber and a second bearing chamber. The first bearing chamber and the second bearing chamber are connected to the receiving cavity. The bearing assembly includes a ball bearing and an oil-impregnated bearing. The ball bearing is installed in the first bearing chamber, and the oil-impregnated bearing is installed in the second bearing chamber. The other end of the output shaft passes through the ball bearing and the oil-impregnated bearing respectively and extends to the outside of the worm gear box.

[0007] The aforementioned second bearing chamber is located above the first bearing chamber, the oil-impregnated bearing is located above the ball bearing, and the other end of the output shaft passes through the ball bearing and the oil-impregnated bearing in sequence and extends to the outside of the worm gear box.

[0008] The first bearing chamber mentioned above is located above the second bearing chamber, the ball bearing is located above the oil-impregnated bearing, and the other end of the output shaft passes through the oil-impregnated bearing and the ball bearing in sequence and extends to the outside of the worm gear box.

[0009] The ball bearings described above are provided with gaskets at both ends.

[0010] An installation groove is provided between the first bearing chamber and the second bearing chamber, wherein a gasket at one end is placed in the installation groove.

[0011] The aforementioned worm gear box has an end cover on one side that is connected to the motor body. The end cover has a through hole that communicates with the accommodating cavity.

[0012] The end cap and bearing described above are manufactured as a single piece.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] 1. A geared motor for garage doors, comprising a motor body, an output shaft, and a reducer housing. The reducer housing contains a gear and bearing assembly. The worm gear at the end of the motor body's shaft meshes with the gear. The reducer housing includes a worm gear box and a cover plate. The cover plate is fixed to the worm gear box with screws. One end of the output shaft is connected to the gear, and the other end passes through the bearing assembly and extends to the outside of the worm gear box. One end of the worm gear box has a bearing section, and the other end has a cavity for mounting the gear. The cover plate is used to seal the cavity. The bearing section contains a first bearing chamber and a second bearing chamber, which are connected to the cavity. The bearing assembly includes ball bearings and oil-impregnated bearings. The ball bearings are installed in the first bearing chamber, and the oil-impregnated bearings are installed in the second bearing chamber. The other end of the output shaft passes through the ball bearings and the oil-impregnated bearings respectively and extends to the outside of the worm gear box. When the motor is subjected to radial force, the ball bearings support the radial force, effectively ensuring normal motor operation and preventing wear failure, while also increasing the strength of the reducer housing.

[0015] 2. Other advantages of this utility model are described in detail in the embodiment section of the specification. Attached Figure Description

[0016] Figure 1 A perspective view provided for Embodiment 1 of this utility model;

[0017] Figure 2 This is a partial exploded view provided for Embodiment 1 of the present utility model;

[0018] Figure 3 This is a partial exploded view from another angle, provided for Embodiment 1 of this utility model;

[0019] Figure 4 This is a top view provided for Embodiment 1 of the present utility model;

[0020] Figure 5 for Figure 4 Sectional view of AA;

[0021] Figure 6 A perspective view provided for Embodiment 2 of this utility model;

[0022] Figure 7 This is an exploded view of Embodiment 2 of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Example 1:

[0025] like Figures 1 to 5 As shown, this embodiment provides a geared motor for garage doors, including a motor body 1, an output shaft 2, and a reducer housing 3. The reducer housing 3 houses a gear 31 and a bearing assembly 32. The worm gear portion 11 at the end of the shaft of the motor body 1 meshes with the gear 31. The reducer housing 3 includes a worm gear box 33 and a cover plate 34. The cover plate 34 is fixed to the worm gear box 33 with screws. One end of the output shaft 2 is connected to the gear 31, and the other end passes through the bearing assembly 32 and extends to the outside of the worm gear box 33. One end of the worm gear box 33 has a bearing portion 331, and the other end has a receiving cavity 332 for mounting the gear 31. The cover plate 34 is used to cover the receiving cavity 332. The 31 is provided with a first bearing chamber 3311 and a second bearing chamber 3312. The first bearing chamber 3311 and the second bearing chamber 3312 are connected to the accommodating cavity 332. The bearing assembly 32 includes a ball bearing 321 and an oil-impregnated bearing 322. The ball bearing 321 is installed in the first bearing chamber 3311, and the oil-impregnated bearing 322 is installed in the second bearing chamber 3312. The other end of the output shaft 2 passes through the ball bearing 321 and the oil-impregnated bearing 322 respectively and extends to the outside of the worm gear box 33. When the motor is subjected to radial force, the ball bearing supports the radial force of the motor, which can effectively ensure the normal operation of the motor and prevent wear failure. At the same time, it increases the strength of the reducer housing.

[0026] The second bearing chamber 3312 is located above the first bearing chamber 3311, the oil-impregnated bearing 322 is located above the ball bearing 321, and the other end of the output shaft 2 passes through the ball bearing 321 and the oil-impregnated bearing 322 in sequence and extends to the outside of the worm gear box 33.

[0027] The ball bearing 321 described above is provided with shims 35 at both ends, which can fill the gap between the bearing and the bearing housing, ensuring that the bearing can be correctly installed on the bearing housing and reducing loosening and friction.

[0028] An installation groove 36 is provided between the first bearing chamber 3311 and the second bearing chamber 3312, with a gasket 35 at one end placed in the installation groove 36. The structure is reasonably arranged and easy to install.

[0029] The aforementioned worm gear box 33 has an end cover 37 connected to the motor body 1 on one side. The end cover 37 has a through hole 371, which communicates with the accommodating cavity 332. The structure is reasonably arranged.

[0030] The end cap 37 and bearing 331 mentioned above are manufactured as a single piece, which simplifies the manufacturing process.

[0031] Example 2:

[0032] like Figure 6 and Figure 7 As shown, this embodiment is a further improvement based on embodiment one. The first bearing chamber 3311 is located above the second bearing chamber 3312, the ball bearing 321 is located above the oil-impregnated bearing 322, and the other end of the output shaft 2 passes through the oil-impregnated bearing 322 and the ball bearing 321 in sequence and extends to the outside of the worm gear box 33.

[0033] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited thereto. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model are equivalent substitutions and are included within the protection scope of the present utility model.

Claims

1. A geared motor for garage doors, comprising a motor body (1), an output shaft (2), and a reducer housing (3), wherein a gear (31) and a bearing assembly (32) are provided inside the reducer housing (3), and a worm gear (11) at the end of the shaft of the motor body (1) meshes with the gear (31); the reducer housing (3) includes a worm gear box (33) and a cover plate (34), the cover plate (34) being fixed to the worm gear box (33) by screws, one end of the output shaft (2) being connected to the gear (31), and the other end passing through the bearing assembly (32) and extending to the outside of the worm gear box (33); characterized in that: The worm gear box (33) has a bearing section (331) at one end and a receiving cavity (332) for mounting the gear (31) at the other end. A cover plate (34) is used to cover the receiving cavity (332). The bearing section (331) has a first bearing chamber (3311) and a second bearing chamber (3312). The first bearing chamber (3311), the second bearing chamber (3312) and the receiving cavity (332) are connected. The bearing assembly (32) includes a ball bearing (321) and an oil-impregnated bearing (322). The ball bearing (321) is installed in the first bearing chamber (3311) and the oil-impregnated bearing (322) is installed in the second bearing chamber (3312). The other end of the output shaft (2) passes through the ball bearing (321) and the oil-impregnated bearing (322) and extends to the outside of the worm gear box (33).

2. The geared motor for garage doors according to claim 1, characterized in that: The second bearing chamber (3312) is located above the first bearing chamber (3311), the oil-impregnated bearing (322) is located above the ball bearing (321), and the other end of the output shaft (2) passes through the ball bearing (321) and the oil-impregnated bearing (322) in sequence and extends to the outside of the worm gear box (33).

3. A geared motor for garage doors according to claim 1, characterized in that: The first bearing chamber (3311) is located above the second bearing chamber (3312), the ball bearing (321) is located above the oil-impregnated bearing (322), and the other end of the output shaft (2) passes through the oil-impregnated bearing (322) and the ball bearing (321) in sequence and extends to the outside of the worm gear box (33).

4. A geared motor for a garage door according to claim 2 or 3, characterized in that: Both ends of the ball bearing (321) are provided with washers (35).

5. A geared motor for a garage door according to claim 4, characterized in that: An installation groove (36) is provided between the first bearing chamber (3311) and the second bearing chamber (3312), wherein a gasket (35) at one end is placed in the installation groove (36).

6. A geared motor for a garage door according to claim 5, characterized in that: The worm gear box (33) has an end cover (37) on one side that is connected to the motor body (1). The end cover (37) has a through hole (371) that communicates with the accommodating cavity (332).

7. A geared motor for a garage door according to claim 6, characterized in that: The end cap (37) and the bearing (331) are manufactured as a single piece.

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