Main shaft translation structure of chain-driven electric roller shutter door
By adopting a chain-driven spindle translation structure in the electric roller shutter door, the horizontal movement of the spindle is achieved, which solves the problem that the curtain sheet cannot enter and exit the track in a vertical posture, reducing friction, reducing noise and extending service life.
Patent Information
- Application Number
- CN202420639869.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-30
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-30
AI Technical Summary
During the rolling and unrolling of the existing electric roller shutter doors, the curtain sheet cannot enter and exit the track in a vertical manner, resulting in friction between the curtain sheet and the track, high noise, increasing the motor load, and wear of the track and the curtain sheet.
The electric roller shutter door spindle translation structure adopts chain transmission, drives the spindle horizontally forward and backward through the motor, and drives the screw with the transmission chain and right-angle commutator to realize the horizontal movement of the moving plate, thereby making the spindle horizontally move and ensuring that the curtain plate is in a vertical posture. In and out of the track.
By moving the spindle horizontally, the friction between the curtain plate and the track is reduced, the noise is reduced, the service life is extended, and the operation efficiency and reliability of electric roller shutter doors are improved.
Smart Images
Figure CN222478572U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric rolling shutter doors, in particular to a main shaft translation structure of a chain-driven electric rolling shutter door. Background Art
[0002] The electric rolling shutter door uses multiple curtain blades connected in series up and down to form a movable joint, and uses electricity to drive the main shaft to rotate to reel in or unreel the curtain blades, so that the curtain blades can move up and down in the vertical track.
[0003] For installation purposes, the distance between the main axis of existing electric rolling doors and the wall is usually set to a fixed size according to the maximum diameter of all the curtain blades after rolling up, and the track is arranged exactly along the tangent direction of the curtain blades rolling up at the maximum diameter. However, during the rolling and unrolling process of the curtain blades, the change in the rolled diameter will cause the curtain blades to be unable to enter and exit the track in a vertical posture, especially above the track, where the movement trajectory of the curtain blades is always at an oblique angle to the track.
[0004] The above situation will cause friction between the curtain blades and the track, resulting in loud noise, which will not only increase the load on the motor, but also cause wear on the track and the curtain blades.
[0005] Therefore, the problem of friction between the curtain blades of the electric rolling door and the track needs to be solved urgently. Summary of the invention
[0006] The utility model aims to provide a chain-driven electric rolling shutter door main shaft translation structure, which drives the main shaft to move horizontally forward and backward, so that the curtain piece always enters and exits the track in a vertical posture, thereby reducing friction, reducing noise and extending service life.
[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions.
[0008] A chain-driven electric rolling door main shaft translation structure comprises a main shaft, two bracket units arranged at both ends of the main shaft, and a motor driving the main shaft to rotate;
[0009] The two bracket units are arranged in mirror symmetry, and each bracket unit comprises:
[0010] A fixed plate, one side of which is provided with a horizontal linear guide rail;
[0011] A movable plate is slidably matched on the linear guide rail, and a shaft seat is provided on the movable plate for connecting the end of the main shaft and forming a rotational match, and two brackets are arranged in a front-to-back direction, a rotatable screw rod is passed between the brackets, and the screw rod is provided with a screw sleeve with a threaded match, and the screw sleeve is fixed on the fixed plate;
[0012] A right angle commutator is fixed on the moving plate, the input shaft of the right angle commutator is parallel to the main shaft, and the output shaft of the right angle commutator is coaxially connected to one end of the lead screw;
[0013] In addition, a driving gear is coaxially arranged on the main shaft, a driven gear is coaxially arranged on the input shaft of the right-angle commutator, and a transmission chain is arranged between the driving gear and the driven gear.
[0014] Further, the motor is fixedly mounted on a moving plate of one of the bracket units.
[0015] Furthermore, the main shaft forms a reduction transmission cooperation with the lead screw through a right-angle commutator.
[0016] Furthermore, the fixed plate has two linear guide rails which are parallel to each other in an upper and lower direction.
[0017] Furthermore, the output shaft of the right-angle commutator is connected to the lead screw via a coupling.
[0018] Furthermore, a sliding block is provided on the movable plate and forms a sliding pair with the linear slide rail.
[0019] Compared with the prior art, the beneficial effects of the utility model are:
[0020] When the motor drives the main shaft, it drives the lead screw through the transmission chain and the right-angle commutator, and then drives the movable plate to move horizontally through the cooperation of the lead screw and the screw sleeve, finally realizing the horizontal forward and backward movement of the main shaft; therefore, even if the diameter of the curtain blades changes during the winding and unwinding process, it is not difficult to make the curtain blades enter and exit the track in a vertical posture through the horizontal forward and backward movement of the main shaft, thereby reducing friction, reducing noise and extending service life.
[0021] Below, the utility model is further described in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a structural schematic diagram of the utility model.
[0023] Figure 2 It is an assembly schematic diagram of the utility model.
[0024] Figure 3 It is a structural schematic diagram of the fixing plate in the utility model.
[0025] Figure 4 It is a structural schematic diagram of the movable plate in the utility model. DETAILED DESCRIPTION
[0026] like Figures 1 to 4As shown, the utility model provides a chain-driven electric rolling door main shaft translation structure, which includes a main shaft 1, two bracket units 2 respectively arranged at both ends of the main shaft 1, and a motor 10 driving the main shaft 1 to rotate;
[0027] The two bracket units 2 are arranged in mirror symmetry, and each bracket unit 2 comprises:
[0028] A fixed plate 3, one side of which is provided with a horizontal linear guide rail 31;
[0029] The movable plate 4 is slidably matched on the linear guide rail 31, and is provided with a shaft seat 41 for connecting the end of the main shaft 1 and forming a rotational match, and is also provided with two brackets 42 arranged in the front-to-back direction, and a rotatable screw rod 43 is passed through between the brackets 42, and the screw rod 43 is provided with a screw sleeve 44 with a threaded match, and the screw sleeve 44 is fixed on the fixed plate 3;
[0030] A right angle commutator 5 is fixed on the moving plate 4, the input shaft of the right angle commutator 5 is parallel to the main shaft 1, and the output shaft of the right angle commutator 5 is coaxially connected to one end of the screw rod 43;
[0031] In addition, the main shaft 1 is provided with a coaxially arranged driving gear 6 , the input shaft of the right-angle commutator 5 is provided with a coaxially arranged driven gear 7 , and a transmission chain 8 is provided between the driving gear 6 and the driven gear 7 .
[0032] According to the above technical solution, when the motor 10 drives the main shaft 1, the main shaft 1 reels or unreels the curtain sheet 91, and at the same time drives the screw rod 43 through the transmission chain 8 and the right-angle commutator 5, and then drives the movable plate 4 to move horizontally through the cooperation of the screw rod 43 and the screw sleeve 44. The two brackets 42 units 2 are arranged in mirror symmetry and are arranged at both ends of the main shaft 1, so that the horizontal forward and backward movement of the main shaft 1 will be finally realized.
[0033] As described above, even if the diameter of the curtain piece 91 changes during the winding and unwinding process, the curtain piece 91 can enter and exit the track 92 in a vertical posture by horizontally moving the main shaft 1 forward and backward.
[0034] Furthermore, the motor 10 is fixedly mounted on the moving plate 4 of one of the bracket 42 units 2 .
[0035] Furthermore, the main shaft 1 forms a reduction transmission with the screw 43 through the right-angle commutator 5. It should be noted that the speed ratio of the main shaft 1 and the screw 43 can be set according to actual needs. This is not the primary technical problem to be solved by the utility model, so the specific speed ratio setting will not be repeated.
[0036] Furthermore, the fixed plate 3 has two upper and lower parallel linear guide rails 31 , which facilitates the stable translation of the movable plate 4 .
[0037] Furthermore, the output shaft of the right-angle commutator 5 is connected to the lead screw 43 via a coupling, which facilitates assembly and has better coaxiality and stability.
[0038] Furthermore, a sliding block 40 is provided on the moving plate 4 and forms a sliding pair with the linear slide rail 31 .
[0039] For those skilled in the art, the protection scope of the present invention is not limited to the details of the above-mentioned exemplary embodiments. Without departing from the spirit or basic characteristics of the present invention, the equivalent meanings and all changes in the protection scope made by those skilled in the art based on the requirements of the present invention should be included in the present invention.
Claims
1. A chain-driven electric rolling door main shaft translation structure, comprising a main shaft, two bracket units arranged at both ends of the main shaft, and a motor driving the main shaft to rotate; It is characterized in that The two bracket units are arranged in mirror symmetry, and each bracket unit includes: A fixed plate, one side of which is provided with a horizontal linear guide rail; A movable plate is slidably matched on the linear guide rail, and a shaft seat is provided on the movable plate for connecting the end of the main shaft and forming a rotational match, and two brackets are arranged in a front-to-back direction, a rotatable screw rod is passed between the brackets, and the screw rod is provided with a screw sleeve with a threaded match, and the screw sleeve is fixed on the fixed plate; A right angle commutator is fixed on the moving plate, the input shaft of the right angle commutator is parallel to the main shaft, and the output shaft of the right angle commutator is coaxially connected to one end of the lead screw; In addition, a driving gear is coaxially arranged on the main shaft, a driven gear is coaxially arranged on the input shaft of the right-angle commutator, and a transmission chain is arranged between the driving gear and the driven gear.
2. The main shaft translation structure of a chain-driven electric rolling shutter door according to claim 1, characterized in that: The motor is fixedly mounted on the moving plate of one of the bracket units.
3. The main shaft translation structure of a chain-driven electric rolling shutter door according to claim 1, characterized in that: The main shaft forms a reduction transmission cooperation with the lead screw through a right-angle commutator.
4. The main shaft translation structure of a chain-driven electric rolling shutter door according to claim 1, characterized in that: The linear guide rail on the fixed plate has two parallel upper and lower rails.
5. The main shaft translation structure of a chain-driven electric rolling shutter door according to claim 1, characterized in that: The output shaft of the right-angle commutator is connected to the lead screw via a coupling.
6. The main shaft translation structure of a chain-driven electric rolling shutter door according to claim 1, characterized in that: A sliding block is arranged on the moving plate and forms a sliding pair with the linear slide rail.