Roller shutter motor with brake wheel

Abstract

The utility model relates to rolling shutter door drive technical field discloses a kind of rolling shutter door motor with brake wheel, including motor body, pivot, brake wheel, brake box and connecting box, brake box is equipped with clamping groove, connecting box is equipped with fixed block with the sliding fit of clamping groove, both are detachably locked by bolt, constitute modular quick-release structure, simultaneously, brake box is equipped with a set of independent pneumatic brake assembly by cylinder drive brake shoe clamping brake wheel. The utility model has the beneficial effect that: modular design makes it more convenient to overhaul transmission gear, greatly reduces maintenance difficulty;Independent pneumatic brake system provides strong brake torque and rotary load-bearing capacity, significantly enhances the safety and reliability of heavy rolling shutter door operation and closed state.

Description

Technical Field

[0001] This utility model relates to the field of roller shutter door drive technology, and in particular to a roller shutter door motor with a brake wheel. Background Technology

[0002] Roller shutter motors are widely used in automated equipment in shops, garages, warehouses and other places. They are usually driven by a motor body to reduce the speed of the transmission mechanism, and then the roller shutter curtain is raised and lowered by a chain or gear.

[0003] To ensure reliable stopping of roller shutters at any position, especially in the closed state, existing roller shutter motors typically integrate braking devices, such as common electromagnetic brakes. However, as roller shutters become larger and heavier, particularly in large industrial plants and logistics warehouses, their weight and size have increased significantly. In this situation, the braking torque provided by traditional electromagnetic brakes may be insufficient, and slight slippage or rotation may occur after prolonged heavy loads, posing safety hazards and failing to fully meet the requirements of high load-bearing capacity and high safety.

[0004] Furthermore, during long-term use, the internal transmission components of roller shutter motors, such as gears and sprockets, will wear down due to continuous meshing, requiring regular maintenance or replacement. In existing technology, these transmission components are usually compactly encapsulated within the motor's integrated housing. When these internal gears need to be inspected or replaced, maintenance personnel often need to remove the entire heavy motor assembly from the wall or mounting bracket to open the housing for operation. This process is not only labor-intensive and time-consuming, but also renders the roller shutter unusable for extended periods, severely impacting maintenance efficiency and ease of use. Therefore, a solution is proposed: a roller shutter motor with a brake wheel to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a roller shutter motor with a brake wheel, which aims to improve the problems of insufficient braking power for heavy doors, low safety and reliability, and cumbersome and laborious maintenance and replacement of internal transmission components in existing roller shutter motors.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A roller shutter motor with a brake wheel includes: a motor body, a rotating shaft driven by the motor body, a gear fixed on the rotating shaft, and a chain meshing with the gear; as well as a brake box, a connecting box, a brake wheel fixed on the rotating shaft, a fixing block, and bolts.

[0007] The brake box has the slot, and the connecting box has the fixing block.

[0008] Furthermore, the fixing block slides into the slot, and the bolt passes through the brake housing and is detachably threaded to the fixing block, thereby fixing the connecting box to the brake housing. The rotating shaft passes through the brake housing, the brake wheel is housed within the brake housing, and the gear is housed within the connecting box.

[0009] Preferably, the roller shutter motor with brake wheel further includes a braking assembly disposed inside the brake box. The braking assembly includes a compressed air box, a pneumatic valve, a cylinder, and brake shoes. The cylinder is connected to the compressed air box through the pneumatic valve, and the brake shoes are connected to the output end of the cylinder and are positioned toward the brake wheel.

[0010] Preferably, the fixing block and the bolt together constitute a disassembly and assembly assembly.

[0011] Preferably, the connecting box has an output slot for the chain to pass through.

[0012] Preferably, the roller shutter motor with brake wheel further includes a second gear that meshes with the chain.

[0013] Preferably, the roller shutter motor with brake wheel further includes a mounting plate fixedly mounted on the connecting box, and the mounting plate is provided with mounting holes.

[0014] Preferably, the brake wheel and the gear are located on opposite sides of the brake box.

[0015] This utility model has the following beneficial effects: 1. This utility model achieves modular separation of the transmission components from the braking and motor parts by setting a slot on the brake box and a fixed block that slides with it on the connecting box, and using bolts for detachable locking. When it is necessary to repair or replace the internal transmission gears, the operator does not need to disassemble the entire bulky motor device. He only needs to unscrew the bolts to quickly pull out the connecting box that houses the gears, which greatly simplifies the maintenance process, shortens downtime, and reduces labor and time costs.

[0016] 2. This utility model adds an independent braking system driven by a pneumatic cylinder to clamp the brake wheel with the brake shoe. This system can provide a strong clamping force far exceeding that of conventional electromagnetic braking after the motor stops working, and firmly lock the transmission shaft. This not only significantly increases the rotation load capacity of the shaft, but also effectively prevents the heavy roller shutter from accidentally sliding down due to its own weight or being easily lifted by external force, thereby greatly improving the stability and safety of the roller shutter in the closed state.

[0017] 3. This utility model compactly integrates motor drive, pneumatic braking and a quick-disassembly transmission mechanism, with a clear structure and well-defined functions for each part. This design not only ensures powerful driving and braking functions, but also takes into account the convenience of subsequent maintenance. The overall solution is reasonably designed and has strong practical value in the fields of industrial doors, large garage doors and the like. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a roller shutter motor with a brake wheel proposed in this utility model; Figure 2 This is a cross-sectional schematic diagram of the brake box of a roller shutter motor with a brake wheel proposed in this utility model; Figure 3 This is a schematic diagram of the bottom structure of a roller shutter motor with a brake wheel proposed in this utility model; Figure 4 This is a schematic diagram of the gear structure of a roller shutter motor with a brake wheel proposed in this utility model; Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0019] Legend: 1. Motor body; 2. Brake box; 3. Connecting box; 4. Mounting plate; 5. Mounting hole; 6. Chain; 7. Gear 1; 8. Brake assembly; 801. Compressed air box; 802. Pneumatic valve; 803. Cylinder; 804. Brake shoe; 9. Assembly / disassembly assembly; 901. Fixing block; 902. Bolt; 10. Shaft; 11. Gear 2; 12. Output slot; 13. Slot; 14. Brake wheel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please refer to Figures 1 to 5 This utility model provides a roller shutter motor with a brake wheel, which aims to solve the problems of insufficient load-bearing capacity of existing roller shutter motors during braking and the inconvenience of repairing and replacing internal gears.

[0022] The roller shutter motor with brake wheel includes a motor body 1; the motor body 1 is provided with a power output mechanism, and the rotating shaft 10 is connected to the power output mechanism for transmission. The rotating shaft 10 rotates under the drive of the motor body 1; a gear 7 is fixedly connected to the rotating shaft 10, so that the gear 7 rotates synchronously with the rotating shaft 10; the chain 6 meshes with the outer peripheral teeth of the gear 7 for transmission.

[0023] The roller shutter motor with brake wheel also includes a brake box 2, a connecting box 3 and a brake wheel 14. The rotating shaft 10 passes through the brake box 2. The connecting box 3 is detachably fixed to one side of the brake box 2. The gear 7 is located inside the connecting box 3. The brake wheel 14 is fixedly connected to the rotating shaft 10 and is located inside the brake box 2.

[0024] To achieve a detachable connection between the connecting box 3 and the brake box 2, a disassembly assembly 9 is provided. The disassembly assembly 9 includes a fixing block 901 and a bolt 902. Specifically, a pair of parallel slots 13 are formed on the side wall of the brake box 2 facing the connecting box 3. A pair of fixing blocks 901 are fixedly connected to the connecting box 3 at the corresponding slots 13. The outer contour of each fixing block 901 is adapted to the inner contour of the corresponding slot 13, so that the fixing block 901 can slide along its length within the slot 13. Each fixing block 901 has a threaded hole. The bolt 902 passes through the wall of the brake box 2 and is threadedly connected to the threaded hole of the fixing block 901. When the bolt 902 is tightened, the fixing block 901 is axially locked in the slot 13, thereby firmly fixing the connecting box 3 to the brake box 2. When the bolt 902 is loosened and pulled out, the connecting box 3 can drive the fixing block 901 to slide out of the brake box 2 along the guide direction of the slot 13. This structure allows the connecting box 3 to be quickly separated and installed.

[0025] As a preferred embodiment, a braking assembly 8 is also fixedly connected inside the brake housing 2 to brake and lock the rotating shaft 10. The braking assembly 8 includes a compressed air housing 801, a pneumatic valve 802, a cylinder 803, and a brake shoe 804. The compressed air housing 801 is used to store high-pressure air. The air inlet of the pneumatic valve 802 is connected to the compressed air housing 801 through an air pipe, and its air outlet is connected to the air inlet of the cylinder 803. The cylinder body of the cylinder 803 is fixed on the inner wall of the brake housing 2, and the end of its piston rod is fixedly connected to the brake shoe 804. The friction surface of the brake shoe 804 is arranged facing the outer periphery of the brake wheel 14.

[0026] To facilitate the installation of the entire motor unit onto a wall or bracket, a mounting plate 4 is also fixedly connected to the outer wall of the connecting box 3. The mounting plate 4 has at least one mounting hole 5, which is used to pass through fastening bolts for fixed installation.

[0027] In order to effectively output the power of the motor body 1, the connecting box 3 is also provided with an output slot 12 for the chain 6 to pass through. The device also includes a second gear 11, which meshes with the chain 6 for transmission. The second gear 11 is fixed on the roller shutter shaft. The connection method is a well-known technology in the field and will not be described in detail here.

[0028] In terms of position, the brake wheel 14 is located inside the brake box 2, and the gear 7 is located inside the connecting box 3. The brake box 2 and the connecting box 3 are arranged adjacent to each other, so that the brake wheel 14 and the gear 7 are located on both sides of the partition wall between them.

[0029] Working principle: When the roller shutter door needs to be raised or lowered, the motor body 1 is started. The motor body 1 drives the rotating shaft 10 to rotate. The rotating shaft 10 drives the gear 7 fixedly connected to it to rotate synchronously. The gear 7 drives the chain 6 to move through meshing. The chain 6 then drives the gear 11 meshing with it to rotate, thereby driving the roller shutter door's roller shaft to rotate, realizing the raising and lowering of the roller shutter door.

[0030] When the roller shutter door moves to the designated position, the motor body 1 is turned off, and at the same time the pneumatic valve 802 is opened. The high-pressure air in the compressed air box 801 enters the cylinder 803, which pushes the brake shoe 804 to tightly clamp the brake wheel 14. The rotating shaft 10 is locked by friction to prevent it from rotating back, thereby increasing the load-bearing capacity of the roller shutter door in the closed state.

[0031] When maintenance is required, the operator only needs to unscrew several bolts 902 to pull the connecting box 3 together with the mounting plate 4 out of the brake box 2 along the direction of the slot 13, so as to replace or repair the gear 7 inside the connecting box 3. The operation process is simple and quick.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A roller shutter motor with a brake wheel, comprising: Motor body (1); A rotating shaft (10) driven by the motor body (1); Gear 1 (7) provided on the rotating shaft (10); and Chain (6) meshing with gear 1 (7); Its characteristic is that it further includes: Brake box (2), the rotating shaft (10) passes through the brake box (2); Connecting box (3), which houses the gear one (7); Brake wheel (14), the brake wheel (14) is fixed on the rotating shaft (10) and located inside the brake box (2); The brake box (2) is provided with a slot (13); The connecting box (3) is provided with a fixing block (901), which slides in conjunction with the slot (13); and Bolt (902) passes through the brake box (2) and is detachably fixed to the fixing block (901).

2. A roller shutter door motor with a brake wheel according to claim 1, characterized in that: The brake housing (2) is further provided with a brake assembly (8), which includes: Compressed air box (801); Pneumatic valve (802); Cylinder (803), the cylinder (803) being connected to the compressed air box (801) via the pneumatic valve (802); and Brake shoe (804), which is connected to the output end of the cylinder (803) and is positioned toward the brake wheel (14).

3. A roller shutter door motor with a brake wheel according to claim 1, characterized in that: The fixing block (901) and the bolt (902) constitute the disassembly assembly (9).

4. A roller shutter door motor with a brake wheel according to claim 3, characterized in that: The connecting box (3) has an output slot (12) for the chain (6) to pass through.

5. A roller shutter door motor with a brake wheel according to claim 1, characterized in that: It also includes a second gear (11) that meshes with the chain (6).

6. A roller shutter door motor with a brake wheel according to claim 1, characterized in that: It also includes a mounting plate (4), which is fixedly mounted on the connecting box (3).

7. A roller shutter door motor with a brake wheel according to claim 6, characterized in that: The mounting plate (4) is provided with mounting holes (5).

8. A roller shutter door motor with a brake wheel according to claim 1, characterized in that: The brake wheel (14) and the gear (7) are located on both sides of the brake box (2).

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