Speed reduction brake structure for treadmill motor

Abstract

The speed reduction braking structure comprises the motor, a speed reducer, a transmission shaft, a braking piece and a clamping braking assembly, the speed reducer is installed at the output end of the motor, an output shaft is installed at the output end of the speed reducer, a first transmission wheel is installed on the outer wall of the output shaft, the transmission shaft is arranged on one side of the motor, and the braking piece is arranged on the other side of the motor. The outer wall of the transmission shaft is sleeved with a running belt, a second transmission wheel is installed on the outer wall of one end of the transmission shaft and connected with the first transmission wheel through a transmission belt, a support is arranged at one end of the output shaft, a telescopic driving piece is installed on the outer wall of one side of the support, and the output end of the telescopic driving piece penetrates through the support and is provided with a push rod. The brake part is arranged on one side of the output shaft, and the clamping brake assembly is arranged on the outer wall of the support. The transmission device has multiple braking functions, is good in braking effect, and is high in matching degree with the output shaft and the transmission belt.

Description

Technical Field

[0001] The utility model relates to the technical field of treadmills, in particular to a speed reduction and braking structure for a treadmill motor. Background Technique

[0002] A treadmill is a kind of indoor fitness equipment, whose main function is to provide aerobic exercise, help improve cardiopulmonary function, burn calories, reduce weight and keep healthy. Treadmills can simulate the movement modes of outdoor running or walking, including two types: electric treadmills and mechanical treadmills. Among them, electric treadmills rely on motors to drive the running belt to run. On electric treadmills, people can walk or run easily and freely, and even experience different running environments, such as flat running, uphill running, etc.

[0003] The main way to reduce the speed of a treadmill is through the belt drive between the motor rotor and the wheel on the transmission, and the speed is reduced through a speed reducer. The control panel sends a speed adjustment signal to control the motor speed to achieve the purpose of speed reduction. When controlling the motor to reduce speed, it is often necessary to cooperate with a braking structure to brake the output shaft of the motor. However, the braking method of the braking structure is single, and the matching degree with the output shaft of the motor is not high, and the braking effect is not ideal enough. Therefore, it is urgently needed to be improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide a speed reduction and braking structure for a treadmill motor to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A speed reduction and braking structure for a treadmill motor, including a motor, a speed reducer, a transmission shaft, a braking member and a clamping and braking assembly. The speed reducer is installed at the output end of the motor, and an output shaft is installed at the output end of the speed reducer. And a first transmission wheel is installed on the outer wall of the output shaft. The transmission shaft is arranged on one side of the motor, and a running belt is sleeved on the outer wall of the transmission shaft. A second transmission wheel is installed on the outer wall of one end of the transmission shaft, and the second transmission wheel is connected with the first transmission wheel through a transmission belt. One end of the output shaft is provided with a support, a telescopic driving member is installed on the outer wall of one side of the support, and the output end of the telescopic driving member penetrates through the support and is installed with a push rod. The braking member is arranged on one side of the output shaft, and a friction plate is adhered to the inner wall of the braking member. The clamping and braking assembly is arranged on the outer wall of the support. The clamping and braking assembly includes a driving seat, a clamping seat, a lower braking block, an upper braking block, a bidirectional lead screw, a movable arm and a rotary driving member. The driving seat is fixed on the outer wall of the support. The clamping seat is arranged outside the transmission belt, and the clamping seat is fixedly connected with the driving seat. The lower braking block and the upper braking block are respectively arranged inside the clamping seat below and above the transmission belt. The bidirectional lead screw is installed inside the driving seat through a bearing.

[0006] Preferably, one end of the output shaft is connected to the support through a bearing.

[0007] Preferably, both the braking member and the friction plate are arc-shaped structures, and the arcs of the braking member and the friction plate match the arc of the surface of the output shaft, improving the matching degree between the braking member and the output shaft.

[0008] Preferably, one end of the braking member extends into the inside of the push rod and is connected to the push rod through a first bolt, facilitating the disassembly and replacement of the braking member.

[0009] Preferably, a rotary drive member is installed at the top of the drive seat, and the output end of the rotary drive member extends into the inside of the drive seat and is fixedly connected to the bidirectional lead screw for driving the bidirectional lead screw.

[0010] Preferably, movable arms are arranged above and below the clamping seat, and one end of the upper brake block extends into the inside of the drive seat and is threadedly connected to the bidirectional lead screw for driving the lower brake block and the upper brake block.

[0011] Preferably, the surfaces of the lower brake block and the upper brake block on the side close to the transmission belt are both inclined surfaces, and the inclination angle of the inclined surface is the same as the inclination angle of the transmission belt, improving the matching degree between the lower brake block, the upper brake block and the transmission belt.

[0012] Preferably, the other end of the movable arm extends into the inside of the clamping seat and is connected to the lower brake block and the upper brake block through a second bolt, facilitating the disassembly and replacement of the lower brake block and the upper brake block.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The speed reduction and braking structure for the treadmill motor not only has multiple braking functions and good braking effects, but also has a high matching degree with the output shaft and the transmission belt;

[0014] The telescopic drive member is controlled by the control panel to drive the push rod to translate. The push rod drives the braking member to translate. The friction plate on the inner wall of the braking member contacts the output shaft to brake the output shaft. The control panel controls the rotary drive member to work. The rotary drive member drives the bidirectional lead screw to rotate, so that the movable arm drives the lower brake block and the upper brake block to approach the transmission belt simultaneously. The lower brake block and the upper brake block contact the upper and lower surfaces of the transmission belt to brake the transmission belt. Through the multiple braking structure, the braking effect is good. Moreover, since both the braking member and the friction plate are arc-shaped structures, the arcs of the braking member and the friction plate match the arc of the surface of the output shaft, and the surfaces of the lower brake block and the upper brake block on the side close to the transmission belt are both inclined surfaces, and the inclination angle of the inclined surface is the same as the inclination angle of the transmission belt, the braking structure has a high matching degree with the output shaft and the transmission belt. At the same time, the control panel sends a speed regulation signal to control the speeds of the motor and the reducer to achieve the purpose of speed reduction. Through braking and speed reduction, the running belt is smoothly decelerated. Description of the Drawings

[0015] Figure 1 is a front view structural schematic diagram of the present utility model;

[0016] Figure 2 of the present utility model Figure 1 is an enlarged structural schematic diagram at position A in;

[0017] Figure 3 is an enlarged front view sectional structural schematic diagram of the arc-shaped braking member of the present utility model;

[0018] Figure 4 is an enlarged front view structural schematic diagram of the clamping and braking assembly of the present utility model;

[0019] Figure 5 is an enlarged sectional structural schematic diagram of the clamping and braking assembly of the present utility model.

[0020] In the figure: 1, motor; 2, speed reducer; 3, output shaft; 4, first driving wheel; 5, transmission shaft; 6, second driving wheel; 7, transmission belt; 8, running belt; 9, support; 10, telescopic driving member; 11, push rod; 12, braking member; 1201, friction plate; 13, first bolt; 14, clamping and braking assembly; 1401, driving seat; 1402, clamping seat; 1403, lower braking block; 1404, upper braking block; 1405, bidirectional lead screw; 1406, movable arm; 1407, rotary driving member; 15, second bolt. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , an embodiment provided by the present utility model: a speed reduction and braking structure for a treadmill motor, including a motor 1, a speed reducer 2, a transmission shaft 5, a braking member 12 and a clamping and braking assembly 14. The speed reducer 2 is installed at the output end of the motor 1, and an output shaft 3 is installed at the output end of the speed reducer 2. Moreover, a first driving wheel 4 is installed on the outer wall of the output shaft 3. The transmission shaft 5 is arranged on one side of the motor 1, and a running belt 8 is sleeved on the outer wall of the transmission shaft 5. A second driving wheel 6 is installed on the outer wall of one end of the transmission shaft 5, and the second driving wheel 6 is connected to the first driving wheel 4 through a transmission belt 7. One end of the output shaft 3 is provided with a support 9. A telescopic driving member 10 is installed on the outer wall of one side of the support 9, and the output end of the telescopic driving member 10 penetrates through the support 9 and is installed with a push rod 11. The braking member 12 is arranged on one side of the output shaft 3, and a friction plate 1201 is adhered to the inner wall of the braking member 12;

[0023] The clamping and braking assembly 14 is arranged on the outer wall of the support 9. The clamping and braking assembly 14 includes a driving seat 1401, a clamping seat 1402, a lower braking block 1403, an upper braking block 1404, a bidirectional lead screw 1405, a movable arm 1406, and a rotary driving member 1407. The driving seat 1401 is fixed on the outer wall of the support 9. The clamping seat 1402 is arranged outside the transmission belt 7, and the clamping seat 1402 is fixedly connected to the driving seat 1401. The lower braking block 1403 and the upper braking block 1404 are respectively arranged inside the clamping seat 1402 below and above the transmission belt 7. The bidirectional lead screw 1405 is installed inside the driving seat 1401 through bearings;

[0024] One end of the output shaft 3 is connected to the support 9 through a bearing;

[0025] Both the braking member 12 and the friction plate 1201 are arc-shaped structures, and the arcs of the braking member 12 and the friction plate 1201 match the arc of the surface of the output shaft 3, improving the matching degree between the braking member 12 and the output shaft 3;

[0026] One end of the braking member 12 extends into the push rod 11 and is connected to the push rod 11 through the first bolt 13, facilitating the disassembly and replacement of the braking member 12;

[0027] A rotary driving member 1407 is installed at the top of the driving seat 1401, and the output end of the rotary driving member 1407 extends into the driving seat 1401 and is fixedly connected to the bidirectional lead screw 1405 for driving the bidirectional lead screw 1405;

[0028] Movable arms 1406 are arranged above and below the clamping seat 1402, and one end of the upper braking block 1404 extends into the driving seat 1401 and is threadedly connected to the bidirectional lead screw 1405 for driving the lower braking block 1403 and the upper braking block 1404;

[0029] The surfaces of the lower braking block 1403 and the upper braking block 1404 close to the transmission belt 7 are both inclined surfaces, and the inclination angles of the inclined surfaces are the same as the inclination angle of the transmission belt 7, improving the matching degree between the lower braking block 1403, the upper braking block 1404 and the transmission belt 7;

[0030] The other end of the movable arm 1406 extends into the clamping seat 1402 and is connected to the lower braking block 1403 and the upper braking block 1404 through the second bolt 15, facilitating the disassembly and replacement of the lower braking block 1403 and the upper braking block 1404.

[0031] In the use of the embodiment of the present application: First, the motor 1 and the speed reducer 2 drive the first transmission wheel 4 to rotate through the output shaft 3. The first transmission wheel 4 drives the transmission belt 7 through the second transmission wheel 6 and drives the transmission shaft 5 to rotate. The transmission shaft 5 drives the running belt 8 to operate. When the speed of the motor 1 is reduced, the control panel controls the telescopic driving member 10 to drive the push rod 11 to translate. The push rod 11 drives the braking member 12 to translate. The friction plate 1201 on the inner wall of the braking member 12 contacts the output shaft 3 to brake the output shaft 3. The control panel controls the rotary driving member 1407 to work. The rotary driving member 1407 drives the bidirectional lead screw 1405 to rotate, so that the movable arm 1406 drives the lower braking block 1403 and the upper braking block 1404 to approach the transmission belt 7 at the same time. The lower braking block 1403 and the upper braking block 1404 contact the upper and lower surfaces of the transmission belt 7 to brake the transmission belt 7. Through the multiple braking structure, the braking effect is good. Moreover, since the braking member 12 and the friction plate 1201 are both arc-shaped structures, the arcs of the braking member 12 and the friction plate 1201 match the arc of the surface of the output shaft 3. The surfaces of the lower braking block 1403 and the upper braking block 1404 close to the transmission belt 7 are both inclined surfaces, and the inclination angle of the inclined surface is the same as the inclination angle of the transmission belt 7. The braking structure has a high matching degree with the output shaft 3 and the transmission belt 7. At the same time, the control panel sends a speed regulation signal to control the rotation speeds of the motor 1 and the speed reducer 2 to achieve the purpose of speed reduction. Through braking and speed reduction, the running belt 8 is smoothly decelerated. And when the braking member 12 is severely worn, the first bolt 13 is removed, and the braking member 12 can be disassembled from the push rod 11 to facilitate the replacement of the braking member 12. When the lower braking block 1403 and the upper braking block 1404 are severely worn, the second bolt 15 is removed, and the lower braking block 1403, the upper braking block 1404 can be disassembled from the movable arm 1406 to facilitate the replacement of the lower braking block 1403 and the upper braking block 1404.

Claims

1. A speed reduction and braking structure for a treadmill motor, characterized in that, It includes a motor (1), a speed reducer (2), a transmission shaft (5), a brake member (12) and a clamping and braking assembly (14). The speed reducer (2) is installed at the output end of the motor (1), and an output shaft (3) is installed at the output end of the speed reducer (2). A first transmission wheel (4) is installed on the outer wall of the output shaft (3). The transmission shaft (5) is arranged on one side of the motor (1), and a running belt (8) is sleeved on the outer wall of the transmission shaft (5). A second transmission wheel (6) is installed on the outer wall of one end of the transmission shaft (5), and the second transmission wheel (6) is connected to the first transmission wheel (4) through a transmission belt (7). One end of the output shaft (3) is provided with a support (9). A telescopic driving member (10) is installed on the outer wall of one side of the support (9), and the output end of the telescopic driving member (10) penetrates through the support (9) and is installed with a push rod (11). The brake member (12) is arranged on one side of the output shaft (3), and a friction plate (1201) is adhered to the inner wall of the brake member (12). The clamping and braking assembly (14) is arranged on the outer wall of the support (9). The clamping and braking assembly (14) includes a driving seat (1401), a clamping seat (1402), a lower brake block (1403), an upper brake block (1404), a bidirectional lead screw (1405), a movable arm (1406), and a rotary driving member (1407). The driving seat (1401) is fixed on the outer wall of the support (9). The clamping seat (1402) is arranged outside the transmission belt (7), and the clamping seat (1402) is fixedly connected to the driving seat (1401). The lower brake block (1403) and the upper brake block (1404) are respectively arranged inside the clamping seat (1402) below and above the transmission belt (7). The bidirectional lead screw (1405) is installed inside the driving seat (1401) through a bearing.

2. The speed reduction and braking structure for a treadmill motor according to claim 1, characterized in that: One end of the output shaft (3) is connected to the support (9) through a bearing.

3. A speed reduction and braking structure for a treadmill motor according to claim 1, characterized in that: Both the brake member (12) and the friction plate (1201) are arc-shaped structures, and the arcs of the brake member (12) and the friction plate (1201) match the arc of the surface of the output shaft (3).

4. A speed reduction and braking structure for a treadmill motor according to claim 1, characterized in that: One end of the brake member (12) extends into the push rod (11) and is connected to the push rod (11) through a first bolt (13).

5. A speed reduction and braking structure for a treadmill motor according to claim 1, characterized in that: A rotary driving member (1407) is installed at the top of the driving seat (1401), and the output end of the rotary driving member (1407) extends into the driving seat (1401) and is fixedly connected to the bidirectional lead screw (1405).

6. A speed reduction and braking structure for a treadmill motor according to claim 1, characterized in that: Movable arms (1406) are arranged above and below the clamping seat (1402), and one end of the upper brake block (1404) extends into the driving seat (1401) and is threadedly connected to the bidirectional lead screw (1405).

7. A speed reduction and braking structure for a treadmill motor according to claim 1, characterized in that: The surfaces of the lower brake block (1403) and the upper brake block (1404) close to the transmission belt (7) are both inclined planes, and the inclination angle of the inclined plane is the same as the inclination angle of the transmission belt (7).

8. A speed reduction and braking structure for a treadmill motor according to claim 6, characterized in that: The other end of the movable arm (1406) extends into the interior of the clamp base (1402) and is connected to the lower brake block (1403) and the upper brake block (1404) by a second bolt (15).

Images