Power-off braking power device

Abstract

The utility model relates to the field of medical instruments, in particular to a power device for power-off braking, which comprises a mounting plate and a motor, the motor is connected with the mounting plate, a first shaft and a fifth shaft are arranged on the mounting plate, one end of the first shaft is connected with an output shaft of the motor, and the other end of the first shaft is provided with a first pinion; a fourth large gear is arranged at one end of the fifth shaft, and the first small gear and the fourth large gear are connected through a speed reduction assembly. The other side of the fourth large gear is connected with an execution device, the other end of the fifth shaft is provided with a first connecting gear, one side of the fifth shaft is provided with an encoder, the encoder is provided with a second connecting gear, and the second connecting gear is meshed with the first connecting gear. According to the utility model, the torque is amplified through the speed reduction assembly, so that the execution device can be locked after power failure.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a power device for power-off braking. Background Art

[0002] Rehabilitation medical equipment is required to drive the human body to move. It must be powered off and paused under any circumstances and must not slide down due to inertia, which may cause secondary injuries to the patient during training.

[0003] In existing rehabilitation medical devices, a brake is installed between the drive device and the actuator. When the device is in use, the brake is energized and released, and the device is used normally. When paused or powered off, the brake is locked to provide safety protection. However, the existing brake will generate noise during the release and power-off process, which gives patients a very bad training experience. Summary of the invention

[0004] In order to solve the problem that a brake is installed between a driving device and an executing device for power-off braking, the brake will generate noise, which gives patients a very bad training experience. The utility model proposes a power device for power-off braking, which amplifies the torque through a deceleration component, so that the executing device can be locked after power is off.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A power device for power-off braking, comprising a mounting plate and a motor, wherein the motor is connected to the mounting plate, a shaft 1 and a shaft 5 are arranged on the mounting plate, one end of the shaft 1 is connected to the motor output shaft, and a pinion 1 is arranged at the other end of the shaft 1;

[0007] A large gear 4 is provided at one end of the shaft 5, and the small gear 1 and the large gear 4 are connected via a reduction assembly;

[0008] The other side of the large gear four is connected to an actuator, the other end of the shaft five is provided with a connecting gear one, one side of the shaft five is provided with an encoder, the encoder is provided with a connecting gear two, and the connecting gear two is meshed with the connecting gear one.

[0009] Further, the deceleration assembly includes shaft 2, shaft 3 and shaft 4, and shaft 2 is provided with large gear 1 and small gear 2, and large gear 1 is meshed with small gear 1;

[0010] The shaft 3 is provided with a large gear 2 and a small gear 3, and the large gear 2 is meshed with the small gear 2;

[0011] A large gear three and a small gear four are arranged on the shaft four. The large gear three is meshed with the small gear three, and the small gear four is meshed with the large gear four, so that the torque is increased by the reduction component.

[0012] Furthermore, the motor output shaft passes through the mounting plate and is connected to shaft one, the large gear four and the small gear four are located below the mounting plate, and the large gear one, small gear one, large gear two, small gear two, large gear three and small gear three are arranged above the mounting plate to reduce the volume of the device.

[0013] Furthermore, the shaft one is connected to the motor output shaft through a belt, a pulley is provided on the shaft one, and the belt sleeve is arranged on the outside of the pulley.

[0014] Furthermore, mounting holes are formed around the mounting plate.

[0015] Furthermore, baffles are provided on the outer sides of the connecting gear 1 and the connecting gear 2.

[0016] Furthermore, a bearing seat is arranged on the outer side of the axis five, and the bearing seat is located above the mounting plate to enhance the stability of the axis five.

[0017] Through the above technical solution, the beneficial effects of the utility model are:

[0018] The utility model amplifies the torque through the reduction component so that the torque of the large gear is large. When the power is off, the large gear will not rotate under the gravity of the actuator due to the large torque of the large gear, thereby locking the actuator to prevent the actuator from falling.

[0019] The utility model can display and set the movement angle parameters by arranging the encoder, so as to facilitate the control and evaluation of the patient's training situation.

[0020] The utility model amplifies the torque through the deceleration component, so that a small drive motor can drive the execution device, thereby reducing the production cost and generating no noise during use, thereby providing a good training experience for patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front side schematic diagram of a power device for power-off braking of the utility model;

[0022] Figure 2 It is a rear side schematic diagram of a power device for power-off braking of the utility model;

[0023] Figure 3 It is a top view schematic diagram of a power device for power-off braking of the utility model;

[0024] Figure 4 The utility model is a schematic bottom view of a power device for power-off braking.

[0025] The reference numerals in the accompanying drawings are:

[0026] 1 is the mounting plate, 2 is the motor, 3 is the axis one, 301 is the small gear one, 4 is the axis two, 401 is the large gear one, 402 is the small gear two, 5 is the axis three, 501 is the large gear two, 502 is the small gear three, 6 is the axis four, 601 is the large gear three, 602 is the small gear four, 7 is the axis five, 701 is the large gear four, 8 is the connecting gear one, 9 is the connecting gear two, 10 is the encoder, 11 is the baffle, and 12 is the belt. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0028] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "horizontal", "vertical" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] Embodiment 1

[0030] like Figure 1 to Figure 4 As shown, a power device for power-off braking includes a mounting plate 1 and a motor 2, wherein the motor 2 is connected to the mounting plate 1, and a shaft 3 and a shaft 5 7 are arranged on the mounting plate 1, one end of the shaft 3 is connected to the output shaft of the motor 2, and a pinion 301 is arranged at the other end of the shaft 3;

[0031] A large gear 4 701 is provided at one end of the shaft 5 7, and the small gear 1 301 and the large gear 4 701 are connected via a reduction assembly;

[0032] The other side of the large gear four 701 is connected to an actuator, the other end of the shaft five 7 is provided with a connecting gear one 8, one side of the shaft five 7 is provided with an encoder 10, the encoder 10 is provided with a connecting gear two 9, and the connecting gear two 9 is meshed with the connecting gear one 8.

[0033] In addition, the deceleration assembly includes shaft 2 4, shaft 3 5 and shaft 4 6, and shaft 2 4 is provided with a large gear 1 401 and a small gear 2 402, and the large gear 1 401 is meshed with the small gear 1 301;

[0034] The shaft 3 5 is provided with a large gear 2 501 and a small gear 3 502 , and the large gear 2 501 is meshed with the small gear 2 402 ;

[0035] A large gear three 601 and a small gear four 602 are provided on the shaft four 6. The large gear three 601 is meshed with the small gear three 502, and the small gear four 602 is meshed with the large gear four 701. The torque is increased by the reduction assembly. When the power is off, due to the large torque at the large gear four 701, it will not rotate under the action of gravity of the actuator, thereby locking the actuator to prevent the actuator from falling.

[0036] Specifically, the output shaft of the motor 2 passes through the mounting plate 1 and is connected to the shaft 3. The large gear four 701 and the small gear four 602 are located below the mounting plate 1. The large gear one 401, the small gear one 301, the large gear two 501, the small gear two 402, the large gear three 601 and the small gear three 502 are arranged above the mounting plate 1 to reduce the volume of the device.

[0037] In this embodiment, the shaft 1 3 is connected to the output shaft of the motor 2 through a belt 12 , a pulley is provided on the shaft 1 3 , the belt 12 is sleeved on the outside of the pulley, and the diameter of the pulley is greater than the diameter of the pinion 1 301 .

[0038] In this embodiment, the mounting plate 1 is provided with mounting holes around it to facilitate the installation and disassembly of the device.

[0039] In this embodiment, baffles 11 are provided on the outside of the connecting gear 1 8 and the connecting gear 2 9 to protect the connecting gear 1 8, the connecting gear 2 9 and the encoder 10. By setting the encoder 10, the movement angle parameters can be displayed and set, which is convenient for controlling and evaluating the patient's training situation.

[0040] In this embodiment, a bearing seat is provided on the outer side of the shaft five 7, and the bearing seat is located above the mounting plate 1, which enhances the stability of the shaft five 7, thereby making the rotation of the large gear four 701 more stable, thereby improving the stability of the actuator.

[0041] Please refer to the actual application Figure 1 to Figure 4 , since the large gear 1 401 is meshed with the small gear 1 301, the large gear 2 501 is meshed with the small gear 2 402, the large gear 3 601 is meshed with the small gear 3 502, and the small gear 4 602 is meshed with the large gear 4 701;

[0042] Therefore, when the motor 2 rotates clockwise, the belt 12 drives the shaft 1 3 to rotate clockwise, the shaft 2 4 to rotate counterclockwise, the shaft 3 5 to rotate clockwise, the shaft 4 6 to rotate counterclockwise, and the shaft 5 7 to rotate clockwise, so the large gear 4 701 will drive the actuator to rotate clockwise, thereby driving the training limb to rotate clockwise;

[0043] When the motor 2 rotates clockwise, the large gear four 701 will drive the actuator to rotate clockwise, thereby driving the training limb to rotate clockwise. During the rotation of the shaft five 7, the encoder 10 can display and set the movement angle parameters.

[0044] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A power device for power-off braking, It is characterized in that It comprises a mounting plate (1) and a motor (2), wherein the motor (2) is connected to the mounting plate (1), a shaft (3) and a shaft (7) are arranged on the mounting plate (1), one end of the shaft (3) is connected to the output shaft of the motor (2), and a pinion gear (301) is arranged on the other end of the shaft (3); A large gear 4 (701) is disposed at one end of the shaft 5 (7), and the small gear 1 (301) and the large gear 4 (701) are connected via a reduction assembly; The other side of the large gear four (701) is connected to an actuator, the other end of the shaft five (7) is provided with a connecting gear one (8), one side of the shaft five (7) is provided with an encoder (10), the encoder (10) is provided with a connecting gear two (9), and the connecting gear two (9) is meshed with the connecting gear one (8).

2. A power device for power-off braking according to claim 1, It is characterized in that The reduction assembly comprises shaft 2 (4), shaft 3 (5) and shaft 4 (6); shaft 2 (4) is provided with a large gear 1 (401) and a small gear 2 (402); the large gear 1 (401) is meshed with the small gear 1 (301); The shaft three (5) is provided with a large gear two (501) and a small gear three (502), and the large gear two (501) is meshed with the small gear two (402); The shaft four (6) is provided with a large gear three (601) and a small gear four (602), the large gear three (601) is meshed with the small gear three (502), and the small gear four (602) is meshed with the large gear four (701).

3. A power device for power-off braking according to claim 2, It is characterized in that The output shaft of the motor (2) passes through the mounting plate (1) and is connected to the shaft one (3); the large gear four (701) and the small gear four (602) are located below the mounting plate (1); the large gear one (401), the small gear one (301), the large gear two (501), the small gear two (402), the large gear three (601) and the small gear three (502) are arranged above the mounting plate (1).

4. A power device for power-off braking according to claim 1, It is characterized in that The shaft one (3) is connected to the output shaft of the motor (2) via a belt (12).

5. A power device for power-off braking according to claim 1, It is characterized in that The mounting plate (1) is provided with mounting holes around its periphery.

6. A power device for power-off braking according to claim 1, It is characterized in that Baffles (11) are provided on the outer sides of the connecting gear 1 (8) and the connecting gear 2 (9).

7. A power device for power-off braking according to claim 1, It is characterized in that A bearing seat is arranged on the outer side of the shaft five (7), and the bearing seat is located above the mounting plate (1).

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