Novel tubular motor with flexible and stable braking

Abstract

The utility model discloses a novel tubular motor flexible and stable in braking, which comprises a shell, a motor main body and a brake mechanism, a rotating shaft of the motor main body is parallel to the shell, the brake mechanism is arranged at the right part of the shell, and the brake mechanism comprises a transmission disc, a brake block, a brake rod, a permanent magnet and an electromagnet. A rotating shaft of the motor body is coaxially and axially connected with a transmission disc in a sliding mode, a plurality of brake rods are fixed to the circumference of the outer circumferential wall of the transmission disc at equal angles, and a plurality of brake blocks are fixed to the circumference of the right portion of the inner wall of the shell at equal angles. When in use, currents in different directions are supplied to the motor main body to enable the motor main body to rotate forwards and backwards, and when the motor main body rotates, forward current is supplied to the electromagnet to enable the electromagnet and the permanent magnet to repel each other, so that the transmission disc extrudes the left compression spring to move leftwards, and the brake rod is far away from the brake block; when braking is needed, power supply to the electromagnet is stopped, or reverse current is conducted.

Description

Technical Field

[0001] This utility model relates to a tubular motor, and more particularly to a novel tubular motor with flexible and stable braking. Background Technology

[0002] Tubular motors are commonly used for unwinding and rewinding rolled materials, such as controlling the opening and closing of roller shutters. Therefore, they require flexible and stable braking; otherwise, the unwinding and rewinding of the rolled material will be unstable, affecting subsequent operations. However, existing tubular motors lack flexibility and stability in braking, making them prone to brake failure. This can lead to accidental release or rewinding of the rolled material, hindering subsequent operations and highlighting the shortcomings of current technology. Utility Model Content

[0003] The purpose of this invention is to provide a novel tubular motor with flexible and stable braking, in order to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A novel tubular motor with flexible and stable braking includes a housing, a motor body, and a braking mechanism. The rotating shaft of the motor body is parallel to the housing. The braking mechanism is mounted on the right side of the housing. The braking mechanism includes a transmission disc, brake blocks, brake levers, a permanent magnet, and an electromagnet. The transmission disc is axially and coaxially slidably connected to the rotating shaft of the motor body. Multiple brake levers are fixed at equal angles on the outer circumference of the transmission disc. Multiple brake blocks are fixed at equal angles on the right circumference of the inner wall of the housing. The brake blocks have pointed ends on both sides. Each brake lever can be inserted into the gap between the brake blocks. A ring-shaped permanent magnet is coaxially fixed inside the transmission disc. An electromagnet is installed on the right side of the housing, with the permanent magnet corresponding to the electromagnet on the left and right. The motor body and the electromagnet are electrically connected to an external electrical control system. When current is passed through the electromagnet in different directions, it can magnetically attract and repel the permanent magnet, thereby causing the transmission disc to move left and right along the rotating shaft of the motor body. A left support disc is fixed on the right side of the inner wall of the housing, and a left compression spring is fixed on the right end of the left support disc. A left rotating ring is coaxially rotatably connected to the left side of the transmission disc. A left compression spring is fixed between the left rotating ring and the left support disc. Under the elastic repulsive force of the left compression spring, the transmission disc tends to move closer to the brake block.

[0006] Based on the above technical solution, multiple metal heat dissipation grids are fixed to the left circumference of the inner wall of the housing. Each heat dissipation grid is fixed together with the motor body. A left end cover with left and right hollowing is installed on the left side of the housing, and a right end cover with left and right hollowing is installed on the right side. Filter screens are closed and fixed in the hollowing parts of the left and right end covers respectively. The right end cover is rotatably connected to the rotating shaft of the motor body through a bearing.

[0007] Based on the above technical solution, the braking mechanism further includes a right support plate, a left wedge block, a right wedge block, a left sliding wedge block, a right sliding wedge block, an internal compression spring, a right rotating ring, and a right compression spring. The left and right support plates are coaxially fixed to the inner wall of the housing from left to right. Multiple left wedge blocks are fixed at equal angles around the right end of the left support plate, and multiple right wedge blocks are fixed at equal angles around the left end of the right support plate. The electromagnet is fixed to the right end of the right support plate. Multiple horizontal left sliding wedge blocks are slidably connected to the left and right sides of the transmission plate, and multiple horizontal right sliding wedge blocks are slidably connected to the right and left sides of the transmission plate. The left and right sliding wedge blocks are respectively fixed to the transmission plate with an internal compression spring. The left sliding wedge block tends to move to the left under the elastic repulsive force of the inner compression spring and can engage with the left wedge block in one direction. The right sliding wedge block tends to move to the right under the elastic repulsive force of the inner compression spring and can engage with the right wedge block in one direction. The inclined surface of the left wedge block faces the same direction as the reverse rotation of the motor body's shaft, and the inclined surface of the right wedge block faces the same direction as the forward rotation of the motor body's shaft. A right rotating ring is coaxially rotatably connected to the right part of the transmission disk. A right compression spring is fixed between the right rotating ring and the right support disk. The transmission disk tends to move closer to the brake block under the elastic repulsive force of the left and right compression springs.

[0008] Compared with the prior art, this utility model has the following advantages: When in use, this utility model makes the motor body rotate in both directions by supplying current in different directions to the motor body. When the motor body rotates, a positive current is simultaneously supplied to the electromagnet, causing the electromagnet and the permanent magnet to repel each other. This causes the transmission disc to squeeze the left compression spring and move to the left, thereby moving the brake lever away from the brake block. When braking is required, the power supply to the electromagnet is stopped, or a reverse current is supplied, which causes the transmission disc to move to the right, thereby causing the brake lever to move closer to the brake block and enter the gap between the brake blocks, thus achieving locking and braking. Since both the brake block and the brake lever are set at equal circumference angles, the locking effect is ensured while the braking is timely and flexible.

[0009] The coordinated action of the left wedge block, left sliding wedge block, right wedge block, and right sliding wedge block can promptly brake any unexpected reverse rotation of the motor body, making the braking more flexible and stable. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the axonal structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the right-side structure of the present invention when the left support plate, transmission plate, and right support plate are in operation.

[0012] Figure 3 This is a schematic diagram of the left structure of the present invention when the left support plate, transmission plate, and right support plate are in combination.

[0013] Figure 4 This is a schematic diagram of the axial structure of the left sliding wedge block, transmission disk, and right sliding wedge block of this utility model when they are in contact.

[0014] Figure 5 This is a schematic diagram of the internal structure of the shell of this utility model after a front section.

[0015] In the diagram: 1. Housing, 2. Motor body, 4. Transmission disc, 5. Brake block, 6. Brake lever, 7. Permanent magnet, 8. Electromagnet, 9. Left support disc, 10. Left rotating ring, 11. Left compression spring, 12. Heat dissipation grid, 13. Left end cover, 14. Right end cover, 15. Filter screen, 16. Right support disc, 17. Left wedge block, 18. Right wedge block, 19. Left sliding wedge block, 20. Right sliding wedge block, 21. Internal compression spring, 22. Right rotating ring, 23. Right compression spring. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] like Figures 1-5 As shown, a novel tubular motor with flexible and stable braking includes a housing 1, a motor body 2, and a braking mechanism. The rotating shaft of the motor body 2 is parallel to the housing 1. The braking mechanism is installed on the right side of the housing 1. The braking mechanism includes a transmission disc 4, brake blocks 5, brake levers 6, a permanent magnet 7, and an electromagnet 8. The transmission disc 4 is axially and coaxially slidably connected to the rotating shaft of the motor body 2. Multiple brake levers 6 are fixed at equal angles on the outer circumference of the transmission disc 4. Multiple brake blocks 5 are fixed at equal angles on the right side of the inner wall of the housing 1. The left and right sides of each brake block 5 are pointed. Each brake lever 6 can be inserted into the gap between the brake blocks 5. A ring-shaped permanent magnet 7 is coaxially fixed inside the transmission disc 4. An electromagnet 8 is installed on the right side of the housing 1. The permanent magnet 7 corresponds to the electromagnet 8 on the left and right. The motor body 2 and the electromagnet 8 are electrically connected to the external electrical control system. When the electromagnet 8 is supplied with current in different directions, it can magnetically attract and repel the permanent magnet 7, thereby causing the transmission disk 4 to move left and right along the rotating shaft of the motor body 2. A left support disk 9 is fixed on the right side of the inner wall of the housing 1. A left compression spring 11 is fixed on the right end of the left support disk 9. A left rotating ring 10 is coaxially rotatably connected to the left side of the transmission disk 4. The left rotating ring 10 and the left support disk 9 are both fixed with the left compression spring 11. Under the elastic repulsive force of the left compression spring 11, the transmission disk 4 tends to move closer to the brake block 5.

[0018] In use, the motor body 2 is rotated by supplying current in different directions. When the motor body 2 rotates, a forward current is simultaneously supplied to the electromagnet 8, causing the electromagnet 8 and the permanent magnet 7 to repel each other. This causes the transmission disc 4 to squeeze the left compression spring 11 and move to the left, thus moving the brake lever 6 away from the brake block 5. When braking is required, the power supply to the electromagnet 8 is stopped, or a reverse current is supplied, which causes the transmission disc 4 to move to the right, causing the brake lever 6 to move closer to the brake block 5 and enter the gap between the brake blocks 5, thereby achieving a locking action and braking. Since both the brake block 5 and the brake lever 6 are set at equal circumference angles, the locking effect is ensured while the braking is timely and flexible.

[0019] Multiple metal heat dissipation gratings 12 are fixed to the left circumference of the inner wall of the housing 1. Each heat dissipation grating 12 is fixed together with the motor body 2. A left end cover 13 with left and right hollowing is installed on the left side of the housing 1, and a right end cover 14 with left and right hollowing is installed on the right side. Filter screens 15 are closed and fixed at the hollowing parts of the left end cover 13 and the right end cover 14 respectively. The right end cover 14 is rotatably connected to the rotating shaft of the motor body 2 through a bearing.

[0020] By setting up the heat dissipation grid 12, the left end cover 13, the right end cover 14 and the filter screen 15, the heat dissipation effect can be improved, thereby improving the stability of the motor body 2 during operation.

[0021] The braking mechanism further includes a right support plate 16, a left wedge block 17, a right wedge block 18, a left sliding wedge block 19, a right sliding wedge block 20, an internal compression spring 21, a right rotating ring 22, and a right compression spring 23. The left support plate 9 and the right support plate 16 are coaxially fixed to the inner wall of the housing 1 from left to right. Multiple left wedge blocks 17 are fixed at equal angles around the right end of the left support plate 9, and multiple right wedge blocks 18 are fixed at equal angles around the left end of the right support plate 16. The electromagnet 8 is fixed to the right end of the right support plate 16. Multiple horizontal left sliding wedge blocks 19 are slidably connected to the left side of the transmission plate 4, and multiple horizontal right sliding wedge blocks 20 are slidably connected to the right side of the transmission plate 4. The left sliding wedge blocks 19 and right sliding wedge blocks 20 are each fixed to the transmission plate 4 with an internal compression spring. 21. The left sliding wedge block 19 tends to move to the left under the elastic repulsive force of the inner compression spring 21 and can engage with the left wedge block 17 in one direction. The right sliding wedge block 20 tends to move to the right under the elastic repulsive force of the inner compression spring 21 and can engage with the right wedge block 18 in one direction. The inclined surface of the left wedge block 17 is oriented in the same direction as the reverse rotation of the motor body 2. The inclined surface of the right wedge block 18 is oriented in the same direction as the forward rotation of the motor body 2. The right part of the transmission disk 4 is coaxially rotatably connected to the right rotating ring 22. The right rotating ring 22 and the right support disk 16 are jointly fixed with the right compression spring 23. The transmission disk 4 tends to move closer to the brake block 5 under the elastic repulsive force of the left compression spring 11 and the right compression spring 23.

[0022] Furthermore, when the motor body 2 needs to reverse (clockwise when viewed from the right), a reverse current is applied to the electromagnet 8. At this time, the electromagnet 8 and the permanent magnet 7 are magnetically attracted, causing the transmission disk 4 to move to the right. This causes the right sliding wedge block 20 to engage with the right wedge block 18 in one direction. The right sliding wedge block 20 is then squeezed to the left by the right wedge block 18, thus not affecting the reverse rotation of the motor body 2. If the motor unexpectedly rotates forward due to other reasons (such as overload), it can be braked in time due to the one-way engagement of the right sliding wedge block 20 and the right wedge block 18. Similarly, when the motor body 2 needs to rotate forward (counterclockwise when viewed from the right), a forward current is applied to the electromagnet 8. At this time, the electromagnet 8 and the permanent magnet 7 are magnetically repelled, causing the transmission disk 4 to move to the left, causing the left sliding wedge block 20 to engage with the right wedge block 18 in one direction. Wedge block 19 engages unidirectionally with left wedge block 17. At this time, left sliding wedge block 19 is squeezed to the right by left wedge block 17, thus not affecting the forward rotation of motor body 2. If motor body 2 is accidentally reversed due to other reasons (such as overload), it can be braked in time due to the unidirectional engagement of left sliding wedge block 19 and left wedge block 17. When complete braking is required, the power supply to electromagnet 8 is stopped. Under the elastic repulsive force of left compression spring 11 and right compression spring 23, transmission disc 4 moves closer to brake block 5, so that brake lever 6 enters the gap between brake blocks 5, achieving jamming braking. Through the cooperation of left wedge block 17, left sliding wedge block 19, right wedge block 18 and right sliding wedge block 20, the unexpected reverse rotation of motor body 2 can be braked in time, making braking more flexible and stable.

[0023] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A novel brake flexible and stable tubular motor, comprising a shell (1), a motor body (2), a brake mechanism, the rotating shaft of the motor body (2) is parallel to the shell (1), the right part of the shell (1) is provided with a brake mechanism, characterized in that: The brake mechanism comprises a transmission disc (4), a brake block (5), a brake lever (6), a permanent magnet (7) and an electromagnet (8), the transmission disc (4) is coaxially and axially slidably connected to the rotating shaft of the motor body (2), a plurality of brake levers (6) are fixed on the outer circumferential wall of the transmission disc (4) at equal angles, a plurality of brake blocks (5) are fixed on the right inner wall of the shell (1) at equal angles, the left and right parts of the brake block (5) are pointed, each brake lever (6) can be inserted into the gap between the brake blocks (5), the permanent magnet (7) is coaxially fixed in the transmission disc (4), the electromagnet (8) is installed on the right part of the shell (1), the permanent magnet (7) and the electromagnet (8) are left and right corresponding, the motor body (2) and the electromagnet (8) are electrically connected with the external electric control system, the electromagnet (8) can magnetically attract and repel the permanent magnet (7) after passing through different direction currents, so that the transmission disc (4) moves left and right along the rotating shaft of the motor body (2), the left supporting disc (9) is fixed on the right inner wall of the shell (1), the left compression spring (11) is fixed on the right end of the left supporting disc (9), the left rotating ring (10) is coaxially and rotatably connected to the left part of the transmission disc (4), the left compression spring (11) is fixed between the left rotating ring (10) and the left supporting disc (9), the transmission disc (4) has a tendency to move close to the brake block (5) under the elastic repulsive force of the left compression spring (11).

2. A new type of brake flexible stable tubular motor according to claim 1, characterized in that: A plurality of metal heat dissipation grating plates (12) are fixed on the left inner wall of the shell (1), each heat dissipation grating plate (12) is fixed with the motor body (2), the left end cover (13) and the right end cover (14) are installed on the left and right parts of the shell (1), the left end cover (13) and the right end cover (14) are respectively closed and fixed with the filter screen (15), and the right end cover (14) is rotatably connected with the rotating shaft of the motor body (2) through a bearing.

3. A new type of brake flexible stable tubular motor according to claim 2, characterized in that: The brake mechanism further comprises a right supporting disc (16), a left wedge (17), a right wedge (18), a left sliding wedge (19), a right sliding wedge (20), an inner compression spring (21), a right rotating ring (22) and a right compression spring (23). The left supporting disc (9) and the right supporting disc (16) are coaxially fixed in sequence from left to right on the inner wall of the shell (1). The right end of the left supporting disc (9) is fixed with a plurality of left wedges (17) at equal angles in circumference. The left end of the right supporting disc (16) is fixed with a plurality of right wedges (18) at equal angles in circumference. The electromagnet (8) is fixed on the right end of the right supporting disc (16). The left part of the transmission disc (4) is slidably connected with a plurality of horizontal left sliding wedges (19), and the right part is slidably connected with a plurality of horizontal right sliding wedges (20). The left sliding wedge (19) and the right sliding wedge (20) are respectively fixed with an inner compression spring (21) between the transmission disc (4). The left sliding wedge (19) has a tendency to move left under the elastic repulsion of the inner compression spring (21) and can be unidirectionally engaged with the left wedge (17). The right sliding wedge (20) has a tendency to move right under the elastic repulsion of the inner compression spring (21) and can be unidirectionally engaged with the right wedge (18). The inclined surface of the left wedge (17) faces the same direction of reverse rotation of the rotating shaft of the motor body (2). The inclined surface of the right wedge (18) faces the same direction of forward rotation of the rotating shaft of the motor body (2). The right part of the transmission disc (4) is coaxially rotatably connected with a right rotating ring (22). The right rotating ring (22) and the right supporting disc (16) are jointly fixed with a right compression spring (23). The transmission disc (4) has a tendency to approach the brake block (5) under the elastic repulsion of the left compression spring (11) and the right compression spring (23).

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