Electric door motor damping transmission device

Abstract

This utility model relates to the field of electric door technology, specifically an electric door motor shock absorption transmission device, including a fixed frame, a support frame, and a connecting sleeve. A drive motor is screwed to the outside of the fixed frame, and an output shaft is provided at the upper end of the drive motor. The support frame is provided at the upper end of the fixed frame, and a transmission shaft is provided inside the support frame. The output shaft and the transmission shaft are both pin-connected to a linkage shaft on their respective outer walls. A connecting sleeve is provided on the outside of the linkage shaft. The upper and lower sides of the inner wall of the connecting sleeve are provided with circularly arrayed fitting grooves. Circularly arrayed fitting blocks are welded to the outer wall of the linkage shaft, achieving the purpose of protecting the drive motor and ensuring that the service life of the drive motor meets the requirements.

Description

Technical Field

[0001] This utility model relates to the field of electric door technology, specifically to an electric door motor shock absorption transmission device. Background Technology

[0002] Electric doors are mainly divided into electric telescopic doors, electric sliding doors, electric revolving doors, and electric roller shutters. Among them, electric roller shutters consist of curtain panels, roller motors, guide rails, supports, and control boxes. The curtain panels move up and down within the guide rails to open and close, driven by the roller motor. The rolling or unrolling of the curtain panels by the roller motor is driven by an external motor. When the electric roller shutter is opened, the door body rolls upwards onto the roller shaft, and the motor is usually controlled by a remote control or buttons.

[0003] Because the deformation of the curtain panel during the winding and unwinding process will generate vibration, the amplitude of which will be transmitted to the roller and the output shaft of the motor. Therefore, it is necessary to protect it with a shock-absorbing structure. The commonly used shock-absorbing structure is a buffer coupling, which uses elastic elements to mitigate the impact and vibration in the transmission structure and ensure smooth power transmission.

[0004] While existing shock-absorbing transmission devices offer numerous benefits during use, they still suffer from the following problems: their shock absorption effect is not perfect; although traditional elastic elements can mitigate vibration, the direct contact between the roller and the output shaft means that vibration will still be transmitted to the motor's output shaft, affecting the motor's lifespan. Utility Model Content

[0005] To address the problems in the existing technology, this utility model provides a shock-absorbing transmission device for electric door motors.

[0006] The technical solution adopted by this utility model to solve its technical problem is an electric door motor shock absorption transmission device, including a fixed frame, a support frame and a connecting sleeve. A drive motor is screwed to the outside of the fixed frame. An output shaft is provided at the upper end of the drive motor. A support frame is provided at the upper end of the fixed frame. A transmission shaft is provided inside the support frame. The output shaft and the transmission shaft are pin-connected to a linkage shaft on opposite outer walls. A connecting sleeve is provided on the outside of the linkage shaft. The upper and lower sides of the inner wall of the connecting sleeve are provided with circularly arrayed fitting grooves. Circularly arrayed fitting blocks are welded to the outer wall of the linkage shaft.

[0007] By adopting the above technical solution, the output shaft and the transmission shaft are connected by a linkage shaft and a connecting sleeve. The torque can be transmitted evenly through multi-point fitting blocks and fitting slots, achieving efficient transmission of motor power. The fit between the fitting slots and the fitting blocks allows for a certain angular offset, and a non-rigid connection is achieved through the first and second buffer airbags. This prevents the vibration generated by the transmission shaft driving the reel from being transmitted to the output shaft, thus achieving the purpose of protecting the drive motor and ensuring that the service life of the drive motor meets the requirements.

[0008] Specifically, the outer walls on both sides of the fixed frame are provided with equally spaced parallel mounting holes, and the outer walls on both sides of the support frame are movably mounted with fixing bolts.

[0009] By adopting the above technical solution, the fixing frame can be fixed to the outside of the roller shutter door shaft through the mounting holes using external screws, and the support frame can also be fixed to the outside of the roller shutter door shaft using fixing bolts, thus achieving the stability of the use position of the fixing frame and the support frame respectively.

[0010] Specifically, a bearing is interference-fitted inside the drive shaft, the drive shaft is interference-fitted to the inner ring of the bearing, and a drive gear is interference-fitted to the upper end of the outer wall of the drive shaft, the drive gear being located at the upper end of the support frame.

[0011] By adopting the above technical solution, the bearing achieves the purpose of supporting the position of the drive shaft, ensuring that the drive shaft can withstand the impact load when the electric door starts and stops, and the bearing ensures the smoothness and stability of the rotation position of the drive shaft. The drive shaft can be connected to the roller through the drive gear and the matching chain, so that the drive motor can drive the rotation of the drive shaft to the roller and realize the winding or unwinding of the curtain.

[0012] Specifically, a baffle is welded to the outer wall of the linkage shaft, and a first buffer airbag is bonded and fixed to the baffle facing the outer wall of the connecting sleeve. The first buffer airbag is in contact with the outer wall of the connecting sleeve.

[0013] By adopting the above technical solution, the first buffer airbag is compressed at the moment the motor starts or stops or the door jams, absorbing vibration energy. The elastic deformation of the first buffer airbag allows radial displacement between the linkage shaft and the connecting sleeve, which can alleviate axial vibration.

[0014] Specifically, the size of the fitting block is smaller than the inner wall size of the fitting groove, and the fitting block is located inside the fitting groove.

[0015] By adopting the above technical solution, the position of the interlocking block inside the interlocking groove is supported by the second buffer airbag, thereby enabling the power transmission between the output shaft and the transmission shaft in conjunction with the connecting sleeve.

[0016] Specifically, a second buffer airbag is bonded and fixed to the inner wall of the fitting groove, and the second buffer airbag is in contact with the outer wall of the fitting block.

[0017] By adopting the above technical solution, the air pressure inside the second buffer airbag can maintain the distance between the fitting groove and the fitting block, and the rotation of the fitting block can be transmitted to the connecting sleeve through the fitting groove and the second buffer airbag, so that the output shaft can drive the transmission shaft to rotate. The elastic compression of the fitting block by the second buffer airbag can reduce the torque fluctuation caused by the transmission gap, ensuring the smooth upgrading of the curtain panel. The second buffer airbag can also alleviate the tangential vibration of the transmission shaft, thereby further reducing the vibration transmission and reducing the damage to the drive motor.

[0018] The beneficial effects of this utility model are:

[0019] The electric door motor shock absorption transmission device of this utility model has a first buffer airbag and a second buffer airbag that are non-rigidly connected, thereby preventing the vibration generated by the drive shaft to the roller drive from being transmitted to the output shaft, thus achieving the purpose of protecting the drive motor and ensuring that the service life of the drive motor meets the requirements.

[0020] The electric door motor shock absorption transmission device described in this utility model has multiple interlocking blocks and interlocking slots that can uniformly transmit torque, thereby achieving efficient transmission of motor power. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the main body of the fixing frame structure of this utility model;

[0023] Figure 2 This is an exploded view of the fixing frame structure of this utility model;

[0024] Figure 3 This is an exploded view of the support frame structure of this utility model;

[0025] Figure 4 This is an enlarged schematic diagram of the linkage shaft structure of this utility model;

[0026] Figure 5 This is an exploded view of the connecting sleeve structure of this utility model.

[0027] In the figure: 1. Fixed frame; 11. Drive motor; 12. Output shaft; 2. Support frame; 21. Transmission shaft; 22. Drive gear; 23. Bearing; 24. Linkage shaft; 25. Baffle; 26. First buffer airbag; 27. Fitting block; 3. Connecting sleeve; 31. Fitting groove; 32. Second buffer airbag. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the electric door motor shock absorption transmission device of this utility model includes a fixed frame 1, a support frame 2 and a connecting sleeve 3. A drive motor 11 is screwed to the outside of the fixed frame 1. An output shaft 12 is provided at the upper end of the drive motor 11. A support frame 2 is provided at the upper end of the fixed frame 1. A transmission shaft 21 is provided inside the support frame 2. The output shaft 12 and the transmission shaft 21 are connected to a linkage shaft 24 by pins on their respective outer walls. A connecting sleeve 3 is provided on the outside of the linkage shaft 24. The upper and lower sides of the inner wall of the connecting sleeve 3 are provided with a circular array of fitting grooves 31. A circular array of fitting blocks 27 are welded to the outer wall of the linkage shaft 24.

[0030] In use, the output shaft 12 is connected to the transmission shaft 21 through the linkage shaft 24 and the connecting sleeve 3. The torque can be transmitted evenly through the multi-point fitting block 27 and the fitting groove 31, realizing the efficient transmission of motor power. The fit between the fitting groove 31 and the fitting block 27 allows for a certain angular offset. The non-rigid connection is achieved through the first buffer airbag 26 and the second buffer airbag 32, thereby preventing the vibration generated by the transmission shaft 21 to drive the reel from being transmitted to the output shaft 12. This achieves the purpose of protecting the drive motor 11 and ensuring that the service life of the drive motor 11 meets the requirements.

[0031] To maintain the usage location, for example, such as Figure 2 As shown, the outer walls of both sides of the fixed frame 1 are provided with equally spaced parallel mounting holes, and the outer walls of both sides of the support frame 2 are movably mounted with fixing bolts.

[0032] In use, the fixing bracket 1 can be fixed to the outside of the roller shutter door shaft through the mounting holes using external screws, and the support bracket 2 can also be fixed to the outside of the roller shutter door shaft using fixing bolts, thus maintaining the stability of the use position of the fixing bracket 1 and the support bracket 2 respectively.

[0033] To maintain the rotational position, for example, such as Figure 3 As shown, a bearing 23 is interference-fitted inside the drive shaft 21, and the drive shaft 21 is interference-fitted to the inner ring of the bearing 23. A drive gear 22 is interference-fitted to the upper end of the outer wall of the drive shaft 21, and the drive gear 22 is located at the upper end of the support frame 2.

[0034] In use, the bearing 23 supports the position of the drive shaft 21, ensuring that the drive shaft 21 can withstand the impact load when the electric door starts and stops. The bearing 23 also ensures the smoothness and stability of the rotation position of the drive shaft 21. The drive shaft 21 can be connected to the roller through the drive gear 22 and the matching chain, so that the drive motor 11 can drive the rotation of the drive shaft 21 to the roller and realize the winding or unwinding of the curtain.

[0035] To mitigate vibration, for example, such as Figure 4 As shown, a baffle 25 is welded to the outer wall of the linkage shaft 24. A first buffer airbag 26 is bonded and fixed to the outer wall of the connecting sleeve 3, and the first buffer airbag 26 is in contact with the outer wall of the connecting sleeve 3.

[0036] During use, the first buffer airbag 26 is compressed at the moment the motor starts or stops or the door jams, absorbing vibration energy. The elastic deformation of the first buffer airbag 26 allows radial displacement between the linkage shaft 24 and the connecting sleeve 3, which can alleviate axial vibration.

[0037] To mitigate the impact, for example, such as Figure 5 As shown, the size of the fitting block 27 is smaller than the inner wall size of the fitting groove 31, and the fitting block 27 is located inside the fitting groove 31.

[0038] In use, the position of the fitting block 27 inside the fitting groove 31 is supported by the second buffer airbag 32, so that it can cooperate with the connecting sleeve 3 to realize the power transmission between the output shaft 12 and the transmission shaft 21. The fitting block 27 can slide inside the second buffer airbag 32, providing a movement gap between the two linkage shafts 24.

[0039] To mitigate vibration, for example, such as Figure 5 As shown, a second buffer airbag 32 is bonded and fixed to the inner wall of the fitting groove 31, and the second buffer airbag 32 is in contact with the outer wall of the fitting block 27.

[0040] During use, the air pressure inside the second buffer airbag 32 maintains the distance between the fitting groove 31 and the fitting block 27, and the rotation of the fitting block 27 is transmitted to the connecting sleeve 3 through the fitting groove 31 and the second buffer airbag 32. Thus, the output shaft 12 can drive the transmission shaft 21 to rotate. The elastic compression of the fitting block 27 by the second buffer airbag 32 can reduce the torque fluctuation caused by the transmission gap, ensuring the smooth upgrading of the curtain panel. The second buffer airbag 32 can also alleviate the tangential vibration of the transmission shaft 21, thereby further reducing the vibration transmission and reducing the damage to the drive motor 11.

[0041] When this utility model is in use, the drive motor 11 is powered on and the output shaft 12 starts to rotate. The fitting block 27 of the linkage shaft 24 and the fitting groove 31 of the connecting sleeve 3 are in flexible contact through the second buffer airbag 32 to evenly distribute the torque. Thus, the torque is transmitted to the connecting sleeve 3 through the linkage shaft 24. The connecting sleeve 3 then transmits the torque to the transmission shaft 21 through the other side linkage shaft 24. The drive gear 22 at the upper end of the transmission shaft 21 is connected to the electric door roller through a chain, driving the roller to rotate and realizing the winding or unwinding of the curtain.

[0042] When the spool and drive shaft 21 rotate and vibrate, the first buffer airbag 26 is compressed between the baffle 25 and the connecting sleeve 3 to absorb axial impact, and the second buffer airbag 32 relieves tangential vibration. The connecting sleeve 3, in conjunction with the first buffer airbag 26, allows for movement clearance between the two linkage shafts 24, preventing the drive motor 11 from stalling and burning out.

[0043] It should be noted that this utility model is a shock-absorbing transmission device for an electric door motor. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electric door motor shock absorbing transmission, characterized in that, The device includes a fixed frame (1), a support frame (2), and a connecting sleeve (3). The fixed frame (1) is screwed to the outside of a drive motor (11). The drive motor (11) has an output shaft (12) at its upper end. The fixed frame (1) has a support frame (2) at its upper end. The support frame (2) has a transmission shaft (21) inside. The output shaft (12) and the transmission shaft (21) are connected to a linkage shaft (24) by pins on their outer walls. The linkage shaft (24) has a connecting sleeve (3) on its outer side. The inner wall of the connecting sleeve (3) has a circular array of fitting grooves (31) on both the upper and lower sides. The linkage shaft (24) has a circular array of fitting blocks (27) welded to its outer wall.

2. A shock absorbing transmission for an electric door motor as defined in claim 1, wherein The fixed frame (1) has equally spaced parallel mounting holes on both outer walls, and the support frame (2) has movably mounted fixing bolts on both outer walls.

3. A shock absorbing transmission for an electric door motor as defined in claim 1, wherein The transmission shaft (21) is internally fitted with a bearing (23), and the transmission shaft (21) is internally fitted with the inner ring of the bearing (23). The upper end of the outer wall of the transmission shaft (21) is internally fitted with a drive gear (22), and the drive gear (22) is located at the upper end of the support frame (2).

4. A shock absorbing transmission for an electric door motor as defined in claim 1, wherein A baffle (25) is welded to the outer wall of the linkage shaft (24). A first buffer airbag (26) is bonded and fixed to the outer wall of the connecting sleeve (3) on the baffle (25). The first buffer airbag (26) is in contact with the outer wall of the connecting sleeve (3).

5. A shock absorbing transmission for an electric door motor as defined in claim 1 wherein, The size of the fitting block (27) is smaller than the inner wall size of the fitting groove (31), and the fitting block (27) is located inside the fitting groove (31).

6. A shock absorbing transmission for an electric door motor as defined in claim 1, wherein, The inner wall of the fitting groove (31) is bonded and fixed with a second buffer airbag (32), and the second buffer airbag (32) is in contact with the outer wall of the fitting block (27).

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