A high transmission efficiency roller shutter door motor transmission structure

Abstract

The utility model roll up door motor technical field, specifically is related to a transmission efficiency high roll up door motor drive structure. Including outer connecting casing body, and setting in brake assembly, drive motor and reduction drive assembly in outer connecting casing body in proper order, drive motor one end is away with brake assembly cooperation effect, drive motor other end is transmission connection with reduction drive assembly, reduction drive assembly includes helical tooth reduction assembly and planetary reduction assembly, drive motor first through helical tooth reduction assembly reduction, later through planetary reduction assembly reduction, outer connecting casing body is equipped with the inner toothed ring in planetary reduction assembly corresponding place, through adopting the compound drive scheme that helical tooth reduction assembly and planetary reduction assembly cooperate, has optimized overall reduction ratio configuration, thereby has improved the lifting speed of roll up door, has realized the consideration of driving stability and rapid drive.

Description

Technical Field

[0001] This utility model relates to the field of roller shutter door motor technology, specifically to a roller shutter door motor transmission structure with high transmission efficiency. Background Technology

[0002] Tubular motors are commonly used in electric roller shutters. The motor is concealed within the roller tube, and its rotation drives the drive shaft, thus raising and lowering the shutter slats. When rising, the slats are wound around the roller shaft; when descending, the slats slide down the inner side of the guide rails. The raising, stopping, and lowering of the shutter can generally be controlled via a remote control. Existing roller shutters, considering the smoothness of the motor-driven shutter, typically employ multi-stage planetary gears for speed reduction. This results in a relatively high overall reduction speed, leading to a slower driving speed for the shutter. To address this technical issue and balance smooth shutter driving with faster operation, this application is proposed. Summary of the Invention

[0003] I. Technical problems to be solved This utility model addresses the aforementioned deficiencies in the existing technology by proposing a high-efficiency roller shutter door motor transmission structure, which solves the problem that the existing roller shutter door transmission structure cannot simultaneously achieve both smooth roller shutter driving and faster driving.

[0004] II. Technical Solution To solve the above-mentioned technical problems, this utility model provides a high-efficiency roller shutter door motor transmission structure, including an outer connecting housing, and a brake assembly, a drive motor and a reduction transmission assembly arranged sequentially in the outer connecting housing; One end of the drive motor is engaged with the brake assembly for disengagement; The other end of the drive motor is connected to the reduction gear transmission assembly. The speed reduction transmission assembly includes a helical gear reduction assembly and a planetary gear reduction assembly. The drive motor first decelerates through the helical gear reduction assembly, and then decelerates through the planetary gear reduction assembly. The outer connecting housing has an internal gear ring at the corresponding location of the planetary reduction assembly.

[0005] The helical gear reduction assembly includes a first-stage helical gear reduction assembly and a second-stage helical gear reduction assembly. The single-stage helical gear reducer consists of a single-stage driving gear and a single-stage driven gear; The two-stage helical gear reducer consists of a two-stage driving gear and a two-stage driven gear.

[0006] The planetary reduction gear assembly includes a center gear and four planetary gears; The secondary driven gear and the central gear are coaxially connected, and the outer sides of the four planetary gears mesh with the internal gear ring respectively; the central gear is located in the middle of the four planetary gears and meshes with the four planetary gears.

[0007] The outer connecting housing also has a control terminal at its end; The braking assembly includes an output-end reduction plate and a control-end reduction plate. The position of the control-end reduction plate is controlled by the control end to achieve engagement and disengagement with the output-end reduction plate. When the control-end reduction plate and the output-end reduction plate are engaged, the drive motor is decelerated. The control terminal is controlled by a chain and / or remote control.

[0008] The outer connecting housing includes a first connecting sleeve, a second connecting sleeve, and a third connecting sleeve. The first connecting sleeve is fixedly connected to the control end, the second connecting sleeve is used to fix the brake assembly and the drive motor, and the third connecting sleeve is used to fix the speed reduction transmission assembly. The internal gear ring is set on the inner wall of the third connecting sleeve corresponding to the planetary gear.

[0009] The drive motor includes a first drive shaft and a second drive shaft extending coaxially to both sides. The end of the first drive shaft is a primary drive wheel, and the end of the second drive shaft is an output speed reducer.

[0010] The secondary helical gear reduction assembly is also equipped with a support frame, which is used to support the rotation of the shaft where the secondary driving wheel and the secondary driven wheel are located; The support frame is also provided with a fixed chuck at one end near the planetary reduction assembly. The fixed chuck engages with the internal gear ring to fix the support frame.

[0011] Among them, housing connectors are provided between the first connecting sleeve and the second connecting sleeve, and between the second connecting sleeve and the third connecting sleeve.

[0012] The housing connectors are symmetrically arranged, with the left and right sides fitted inside the first connecting sleeve, the second connecting sleeve, or the third connecting sleeve. A boss is provided in the middle, and the end face of the boss abuts against the end face of the first connecting sleeve, the second connecting sleeve, or the third connecting sleeve. The diameter of the boss is equal to the outer diameter of the outer connecting housing.

[0013] The first connecting sleeve, the second connecting sleeve, the third connecting sleeve and the boss end face are provided with positioning blocks and slot structures that cooperate with each other.

[0014] III. Beneficial Effects Compared with existing technologies, the high-efficiency roller shutter door motor transmission structure provided by this utility model optimizes the overall reduction ratio configuration by adopting a composite transmission scheme that combines helical gear reduction components and planetary reduction components. The first and second stage helical gear reduction components perform initial deceleration, ensuring smooth transmission, before the planetary reduction component provides the final high-torque output. This combination ensures the torque required for smooth roller shutter door operation while reducing the excessively high overall reduction ratio, thereby increasing the lifting speed of the roller shutter door and achieving a balance between drive smoothness and rapid operation. Furthermore, the meshing of helical gears is smoother than that of spur gears, with a high degree of mesh overlap, effectively reducing the impact and vibration generated during transmission, thus significantly reducing the noise of the entire machine during operation and ensuring smooth transmission.

[0015] By sequentially integrating the brake assembly, drive motor, and reduction gear assembly into the outer connecting housing and fixing them with segmented connecting sleeves, the overall structure becomes compact. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the overall structure of this utility model; Figure 2 This is a three-dimensional view of the third connecting sleeve; Figure 3 This is the internal structure of the utility model. Figure 1 ; Figure 4 This is the internal structure of the utility model. Figure 2 ; In the picture: 1 is the drive motor; 11 is the first drive shaft; 12 is the second drive shaft. 2 is the speed reduction transmission assembly; 21 is a first-stage helical gear reduction assembly; 211 is a first-stage driving gear; 212 is a first-stage driven gear; 22 is the two-stage helical gear reducer assembly; 221 is the two-stage driving gear; 222 is the two-stage driven gear; 223 is the support frame; 224 is the fixed chuck; 23 is the planetary reduction gear assembly; 24 is the planetary gear; 26 is the center gear; 3 is the brake assembly; 31 is the output reduction gear; 32 is the control reduction gear. 4 is the control end; 5 is the first connecting sleeve; 6 is the second connecting sleeve; 7 is the third connecting sleeve; 8 is the internal gear ring; 9 is the housing connector; 10 is the outer connecting housing; 100 is the output shaft of the roller shutter. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model. Example

[0018] like Figure 1 , Figure 2 As shown, the high-efficiency roller shutter door motor transmission structure of this embodiment includes an outer connecting housing 10, and a brake assembly 3, a drive motor 1, and a reduction transmission assembly 2 sequentially arranged in the outer connecting housing 10.

[0019] The outer connecting housing 10 is composed of a first connecting sleeve 5, a second connecting sleeve 6, and a third connecting sleeve 7 connected sequentially by a housing connector 9. The first connecting sleeve 5 has a control end 4 at its end, which can be controlled by a chain and / or remote control. The second connecting sleeve 6 is mainly used to accommodate and fix the brake assembly 3 and the drive motor 1. The third connecting sleeve 7 is mainly used to accommodate and fix the reduction gear assembly 2, and an internal gear ring 8 is machined on its inner wall at a position corresponding to the planetary reduction assembly 23.

[0020] like Figure 3 and Figure 4 As shown, the drive motor 1 has a first drive shaft 11 and a second drive shaft 12 extending coaxially to both sides. One end of the first drive shaft 11 is connected to the reduction transmission assembly 2; one end of the second drive shaft 12 is engaged with the brake assembly 3.

[0021] The braking assembly 3 includes an output end reducer 31 fixed to the end of the second drive shaft 12, and a control end reducer 32 that is axially movable under the control of the control end 4. Under normal operating conditions, the control end reducer 32 is separated from the output end reducer 31, allowing the drive motor 1 to rotate freely. When braking is required, the control end 4 is operated, such as via a chain or remote control, to bring the control end reducer 32 towards the output end reducer 31, achieving deceleration and braking through friction.

[0022] The reduction transmission assembly 2 includes a helical gear reduction assembly and a planetary gear reduction assembly 23. The power from the drive motor 1 is first reduced in speed by the helical gear reduction assembly. Specifically, the helical gear reduction assembly includes a first-stage helical gear reduction assembly 21 and a second-stage helical gear reduction assembly 22. The end of the first transmission shaft 11 of the drive motor 1 forms a first-stage driving gear 211, which meshes with a first-stage driven gear 212 to achieve first-stage reduction. The first-stage driven gear 212 is coaxially connected to the second-stage driving gear 221, and the second-stage driving gear 221 then meshes with the second-stage driven gear 222 to achieve second-stage reduction. In this invention, the helix angle of the helical gear is approximately 17 degrees.

[0023] After helical gear reduction, power is transmitted to planetary reduction assembly 23. The secondary driven gear 222 and the central gear 26 are coaxially connected. The power drives four circumferentially distributed planetary gears 24. The planetary gears 24 mesh with the fixed internal gear ring 8 and the central gear 26. The planetary gears 24 rotate on their own axis and revolve around the central gear 26. The revolution of the planetary gears is output through the planetary carrier, which is integrated with the roller shutter output shaft 100, thus generating a final low-speed, high-torque output to drive the roller shutter door roller tube (the roller tube is located at one end of the roller shutter output shaft 100 and connected to it, not shown in the figure). The overall reduction ratio is 23, which is a significant improvement compared to the reduction ratio of 93 used in all three stages of planetary gear reduction.

[0024] Furthermore, the second-stage helical gear reducer assembly 22 is also provided with a support frame 223, which is used to support the rotation of the shaft where the second-stage driving gear 221 and the second-stage driven gear 222 are located; the end of the support frame 223 near the planetary reducer assembly 23 is also provided with a fixed chuck 224, which engages with the internal gear ring 8 so that the support frame 223 is fixed and will not rotate with the rotation of the shaft of the second-stage driving gear 221 and the second-stage driven gear 222.

[0025] The working principle of this utility model is as follows: When the drive motor 1 starts, power is output from the first transmission shaft 11. After two stages of helical reduction (first-stage helical gear reducer 21 and second-stage helical gear reducer 22), the power is transmitted to the planetary reducer 23. The planetary reducer then generates a high-torque, low-speed output to smoothly raise or lower the roller shutter door. When stopping is required, the power supply to the drive motor 1 is cut off, and the control end reducer 32 of the brake assembly 3 is engaged with the output end reducer 31 via the control terminal 4, thus achieving braking. Example

[0026] Compared to Embodiment 1, in this embodiment, the first connecting sleeve 5, the second connecting sleeve 6, and the third connecting sleeve 7 are further provided with mutually cooperating positioning blocks and slot structures at the contact points with the boss end face, so as to achieve precise positioning during installation and ensure the alignment accuracy when connecting each section of the shell.

[0027] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A high-efficiency transmission structure for a roller shutter door motor, characterized in that, The high-efficiency roller shutter door motor transmission structure includes an outer connecting housing (10), and a brake assembly (3), a drive motor (1), and a speed reduction transmission assembly (2) arranged sequentially in the outer connecting housing (10). One end of the drive motor (1) is engaged with the brake assembly (3); The other end of the drive motor (1) is connected to the reduction gear transmission assembly (2) for transmission. The speed reduction transmission assembly (2) includes a helical gear speed reduction assembly and a planetary speed reduction assembly (23). The drive motor (1) first decelerates through the helical gear speed reduction assembly and then decelerates through the planetary speed reduction assembly (23). The outer connecting housing (10) has an internal gear ring (8) at the corresponding position of the planetary deceleration assembly (23).

2. The high-efficiency roller shutter door motor transmission structure according to claim 1, characterized in that, The helical gear reduction assembly includes a first-stage helical gear reduction assembly (21) and a second-stage helical gear reduction assembly (22). The first-stage helical gear reduction assembly (21) includes a first-stage driving gear (211) and a first-stage driven gear (212). The secondary helical gear reduction assembly (22) includes a secondary driving gear (221) and a secondary driven gear (222).

3. The high-efficiency roller shutter door motor transmission structure according to claim 2, characterized in that, The planetary reduction assembly (23) includes a center wheel (26) and four planetary wheels (24). The secondary driven gear (222) and the center gear (26) are coaxially connected, and the outer sides of the four planetary gears (24) respectively mesh with the internal gear ring (8); the center gear (26) is located in the middle of the four planetary gears (24) and meshes with the four planetary gears (24).

4. The high-efficiency roller shutter door motor transmission structure according to claim 1, characterized in that, The outer connecting housing (10) is also provided with a control terminal (4) at its end. The brake assembly (3) includes an output end speed reducer (31) and a control end speed reducer (32). The position of the control end speed reducer (32) is controlled by the control end (4) to achieve engagement and disengagement with the output end speed reducer (31). When the control end speed reducer (32) and the output end speed reducer (31) are engaged, the drive motor (1) is decelerated. The control terminal (4) is controlled by a chain and / or remote control.

5. The high-efficiency roller shutter door motor transmission structure according to claim 3, characterized in that, The outer connecting housing (10) includes a first connecting sleeve (5), a second connecting sleeve (6), and a third connecting sleeve (7). The first connecting sleeve (5) is connected and fixed to the control end (4), the second connecting sleeve (6) is used to fix the brake assembly (3) and the drive motor (1), the third connecting sleeve (7) is used to fix the speed reduction transmission assembly (2), and the internal gear ring (8) is set on the inner wall of the third connecting sleeve (7) corresponding to the planetary gear (24).

6. The high-efficiency roller shutter door motor transmission structure according to claim 2, characterized in that, The drive motor (1) includes a first drive shaft (11) and a second drive shaft (12) extending coaxially to both sides. The end of the first drive shaft (11) is a first-stage drive wheel (211), and the end of the second drive shaft (12) is an output end speed reducer (31).

7. The high-efficiency roller shutter door motor transmission structure according to claim 5, characterized in that, The secondary helical gear reduction assembly (22) is also provided with a support frame (223), which is used to support the rotation of the shaft where the secondary driving wheel (221) and the secondary driven wheel (222) are located; The support frame (223) is also provided with a fixed chuck (224) at one end near the planetary reduction assembly (23). The fixed chuck (224) engages with the internal gear ring (8) to fix the support frame (223).

8. The high-efficiency roller shutter door motor transmission structure according to claim 5, characterized in that, A housing connector (9) is provided between the first connecting sleeve (5) and the second connecting sleeve (6), and between the second connecting sleeve (6) and the third connecting sleeve (7).

9. The high-efficiency roller shutter door motor transmission structure according to claim 8, characterized in that, The housing connector (9) is symmetrically arranged, with the left and right sides sleeved inside the first connecting sleeve (5), the second connecting sleeve (6), or the third connecting sleeve (7); A boss is provided in the middle, and the end face of the boss abuts against the end face of the first connecting sleeve (5), the second connecting sleeve (6), or the third connecting sleeve (7). The diameter of the boss is equal to the outer diameter of the outer connecting housing (10).

10. A high-efficiency roller shutter door motor transmission structure according to claim 9, characterized in that, The first connecting sleeve (5), the second connecting sleeve (6), the third connecting sleeve (7) and the end face of the boss are also provided with positioning blocks and slot structures that cooperate with each other.

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