A device capable of realizing coaxial shaft cylinder clutch and braking

Abstract

The present invention discloses a coaxial shaft cylinder clutch and brake device. The device comprises: an outer sleeve, a transmission shaft, an outer fixed plate, a retaining ring, a voice coil motor, a support base, an outer connecting keyway, a first friction plate, a second friction plate, a moving member, a third friction plate, a fourth friction plate, an inner connecting keyway, and a rotating body. The transmission shaft, outer sleeve, outer fixed plate, movable retaining plate, and retaining ring are sequentially sleeved together. The support base and rotating body are sleeved on the transmission shaft, and the transmission shaft and rotating body, and the rotating body and support base are connected. A bearing support frame is mounted with a third friction plate and a thrust bearing. The movable retaining plate is mounted with a second friction plate. The retaining ring is cooperatively connected with the moving member. The voice coil motor is arranged on both sides of the transmission shaft. The outer fixed plate is mounted with a first friction plate. The rotating body is mounted with a fourth friction plate. The present invention has a small size, a simple structure, high reliability, high friction force, and can achieve dual clutching and braking functions. The clutching and braking process is completed in a short time and with high efficiency.

Description

Technical Field

[0001] The invention belongs to the field of vehicle clutch equipment, and in particular relates to a coaxial shaft cylinder clutch and braking device and its application. Background Art

[0002] A clutch is a device that transmits or disconnects transmission between a power source and an actuator, acting as a power switch. According to the "China Clutch Manufacturing Industry Production, Sales, Demand, and Investment Forecast Analysis Report," clutches are categorized into four types: electromagnetic clutches, magnetic powder clutches, friction clutches, and hydraulic clutches. Brakes are devices that decelerate, stop, or maintain a moving part (or moving machinery). The development of modern industrial machinery has led to the emergence of a variety of new brake structures, with caliper disc brakes, magnetic powder brakes, and electromagnetic brakes being the most widely used. While clutch and brake technologies are currently mature, it's not possible to achieve both clutching and braking functions with a single device.

[0003] Wars and natural disasters are commonplace today. Small mobile robots, with their small size and maneuverability, can quickly access dangerous areas inaccessible to rescue personnel. However, conventional wheeled, tracked, or legged robots are no longer suitable for the complex terrain conditions of post-disaster and post-war environments. Furthermore, the small size of a robot platform is inherently incompatible with high terrain adaptability. Therefore, improving the terrain adaptability of small robot platforms has been a major research priority. To this end, structures such as shaped wheels, reconfigurable wheels, and bionic wheels have emerged. However, complex mechanical deformation requires a clutch-brake mechanism to control it. While existing brakes and clutches can achieve this function, such robots remain in the laboratory and have been unable to achieve engineering and practical application. To address the urgent need for mechanical transformation in small robots, a clutch and brake mechanism was designed, focusing on solving the clutch and brake issues during the transformation process. This mechanism, designed for a coaxial inner shaft and outer cylinder, allows the inner shaft to rotate while the outer cylinder remains fixed, and the inner and outer cylinders rotate synchronously. This mechanism is compact and easy to install, making it widely applicable to clutch / brake systems used in complex mechanical transformations, thus promoting the development of small robots with high terrain adaptability. Summary of the Invention

[0004] Aiming at the complex structural transformation problems of heterogeneous wheels, reconstructed wheels, bionic wheels, etc. in small mobile robots, the present invention provides a coaxial shaft-cylinder clutch and braking device based on the collinear (coaxial) inner shaft-outer cylinder structural model, comprising:

[0005] An outer sleeve, a transmission shaft, an outer fixing plate, a retaining ring, a voice coil motor, a supporting base, an outer connecting keyway, a first friction plate, a second friction plate, a moving component, a third friction plate, a fourth friction plate, an inner connecting keyway and a rotating body;

[0006] The moving component includes a movable baffle, a thrust ball bearing and a bearing support frame;

[0007] The outer sleeve is sleeved on the transmission shaft, and the outer sleeve is close to the second end of the transmission shaft;

[0008] The outer fixing plate is sleeved on the outer sleeve, and the outer fixing plate is close to the first end of the outer sleeve;

[0009] The movable baffle is sleeved on the outer sleeve, the movable baffle is close to the first end of the outer sleeve, and the outer sleeve and the movable baffle can rotate synchronously;

[0010] The retaining ring is sleeved on the movable baffle;

[0011] The support base is sleeved on the transmission shaft, and the support base is close to the first end of the transmission shaft;

[0012] The transmission shaft is provided with the inner connection keyway, and the inner connection keyway is close to the first end of the transmission shaft;

[0013] The rotating body is sleeved on the transmission shaft, and the transmission shaft is connected to the rotating body through the inner connection keyway, and the transmission shaft can drive the rotating body to rotate;

[0014] The first end of the rotating body matches the structure of the second end of the supporting base, and the first end of the rotating body is connected to the second end of the supporting base;

[0015] The bearing support frame is provided with a first groove and a second groove, the second groove is close to the first end of the movable baffle, the first groove is away from the first end of the movable baffle, the first groove is fixedly installed with a third friction plate, and the second groove is installed with a thrust bearing;

[0016] The first end of the movable baffle is fixedly connected to the second end of the bearing support frame, the second end of the movable baffle is provided with a third groove, and the second friction plate is fixedly installed in the third groove;

[0017] The retaining ring is cooperatively connected with the moving component;

[0018] There are two voice coil motors, which are symmetrically arranged on both sides of the transmission shaft; a first end of the voice coil motor is connected to the support base, and a second end of the voice coil motor is fixedly connected to the retaining ring. The voice coil motor can perform reciprocating linear motion along the axis, and the voice coil motor can drive the retaining ring to move;

[0019] A fourth groove is provided on the side of the outer fixing plate away from the second end of the transmission shaft, a first friction plate is installed in the fourth groove, and the first friction plate is matched with the second friction plate;

[0020] A fifth groove is provided at the second end of the rotating body, and the fourth friction plate is fixedly installed in the fifth groove. The third friction plate is matched with the fourth friction plate.

[0021] Furthermore, the first end of the movable baffle is fixedly connected to the second end of the bearing support frame by bolts.

[0022] Furthermore, a guide keyway is provided on the inner wall of the second side of the movable baffle, and an external connection keyway is provided on the first end of the outer sleeve, and the guide keyway is cooperatively connected with the external connection keyway.

[0023] Furthermore, the first groove is provided with a screw hole, and the third friction plate is fixedly installed in the first groove by means of bolts.

[0024] Furthermore, the fifth groove is provided with a screw hole, and the fourth friction plate is fixedly installed in the fifth groove by bolts.

[0025] Furthermore, the opposing surfaces of the first friction plate and the second friction plate are respectively provided with friction patterns, and the first friction plate and the second friction plate can generate friction.

[0026] Furthermore, the opposing surfaces of the first friction plate and the second friction plate are respectively provided with serrations, and the first friction plate and the second friction plate are capable of meshing.

[0027] Furthermore, the opposing surfaces of the third friction plate and the fourth friction plate are respectively provided with friction patterns, and the third friction plate and the fourth friction plate can generate friction.

[0028] Furthermore, the opposing surfaces of the third friction plate and the fourth friction plate are respectively provided with serrations, and the third friction plate and the fourth friction plate are capable of meshing.

[0029] The present invention also provides a coaxial shaft cylinder clutch and braking device that can be used on a robot.

[0030] The coaxial shaft cylinder clutch and brake device designed by the present invention has the advantages of small size, simple structure, high reliability, large friction force, and can realize dual functions of clutch and brake. The clutch-braking process is completed in a short time and with high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the three-dimensional structure of a coaxial shaft cylinder clutch and brake device according to an embodiment of the present invention is shown;

[0032] Figure 2 A side view of a coaxial shaft cylinder clutch and brake device according to an embodiment of the present invention is shown;

[0033] Figure 3 A main diagram of a coaxial shaft cylinder clutch and brake device according to an embodiment of the present invention is shown;

[0034] Figure 4 A cross-sectional view of a coaxial shaft cylinder clutch and brake device according to an embodiment of the present invention is shown.

[0035] In the figure: 1. Outer sleeve; 2. Transmission shaft; 3. Outer fixed plate; 4. Retaining ring; 5. Voice coil motor; 6. Support base; 7. External connection keyway; 8. First friction plate; 9. Second friction plate; 10. Movable baffle; 11. Thrust ball bearing; 12. Bearing support frame; 13. Third friction plate; 14. Fourth friction plate; 15. Internal connection keyway; 16. Rotating body. DETAILED DESCRIPTION

[0036] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0037] The present invention provides a clutch and braking device that can realize coaxial shaft cylinder clutch and braking, which includes: an outer sleeve 1, a transmission shaft 2, an outer fixed plate 3, a retaining ring 4, a voice coil motor 5, a support base 6, an external connection keyway 7, a first friction plate 8, a second friction plate 9, a moving component, a third friction plate 13, a fourth friction plate 14, an internal connection keyway 15 and a rotating body 16; the moving component includes a movable baffle 10, a thrust ball bearing 11 and a bearing support frame 12.

[0038] For example, the present invention is designed to realize the coaxial shaft cylinder clutch and brake device, the three-dimensional effect diagram is as follows Figure 1 As shown, Figure 2 As a side view, Figure 3 As its main diagram. Figure 4 As shown, the clutch and brake device includes: an outer sleeve 1, a transmission shaft 2, an outer fixed plate 3, a retaining ring 4, a voice coil motor 5, a support base 6, an external connection keyway 7, a first friction plate 8, a second friction plate 9, a movable baffle 10, a thrust ball bearing 11 and a bearing support frame 12, a third friction plate 13, a fourth friction plate 14, an internal connection keyway 15, and a rotating body 16. Among them, the movable baffle 10, the thrust ball bearing 11, and the bearing support frame 12 are collectively referred to as the moving components.

[0039] Specifically, the outer sleeve 1 is sleeved on the transmission shaft 2, and the outer sleeve 1 is close to the second end of the transmission shaft 2; the outer fixed plate 3 is sleeved on the outer sleeve 1, and the outer fixed plate 3 is close to the first end of the outer sleeve 1; the movable baffle 10 is sleeved on the outer sleeve 1, and the movable baffle 10 is close to the first end of the outer sleeve 1, and the outer sleeve 1 and the movable baffle 10 can rotate synchronously; the retaining ring 4 is sleeved on the movable baffle 10; the support base 6 is sleeved on the transmission shaft 2, and the support base 6 is close to the first end of the transmission shaft 2; the transmission shaft 2 is provided with the inner connecting keyway 15, and the inner connecting keyway 15 is close to the first end of the transmission shaft 2; the rotating body 16 is sleeved on the transmission shaft 2, and the transmission shaft 2 is connected to the rotating body 16 through the inner connecting keyway 15, and the transmission shaft 2 can drive the rotating body 16 to rotate; the first end of the rotating body 16 is structurally matched with the second end of the support base 6, and the first end of the rotating body 16 is connected to the second end of the support base 6. A guide keyway is provided on the inner wall of the second side of the movable baffle 10 , and an external connection keyway 7 is provided on the first end of the outer sleeve 1 . The guide keyway is cooperatively connected with the external connection keyway 7 .

[0040] Exemplarily, the power of the clutch and brake device designed in the present invention is transmitted from the direction of the first end of the transmission shaft 2, that is, the direction close to the support base 6. In this article, the direction of power transmission is referred to as the first end, and the direction away from the power transmission is referred to as the second end. The outer sleeve 1 is sleeved on the transmission shaft 2, and the outer sleeve 1 is close to the second end of the transmission shaft 2; the outer fixed plate 3 is sleeved on the outer sleeve 1, and the outer fixed plate 3 is close to the first end of the outer sleeve 1. The movable baffle 10 is sleeved on the outer sleeve 1, and the movable baffle 10 is close to the first end of the outer sleeve 1. The inner wall of the second side of the movable baffle 10 is provided with a guide keyway, and the first end of the outer sleeve 1 is provided with an external connection keyway 7. The guide keyway is matched with the external connection keyway 7, which enables the outer sleeve 1 and the movable baffle 10 to rotate synchronously. The retaining ring 4 is sleeved on the movable baffle 10. The support base 6 is sleeved on the transmission shaft 2, and the support base 6 is close to the first end of the transmission shaft 2. When power is input, the transmission shaft 2 continuously rotates. The transmission shaft 2 is provided with an internal connection keyway 15, located near the first end of the transmission shaft 2. The rotating body 16 is sleeved onto the transmission shaft 2 and connected to the rotating body 16 via the internal connection keyway 15. This allows the transmission shaft 2 to drive the rotating body 16 for synchronous rotation. The clutch and brake device can be secured to the robot's side panel near the power output via the support base 6, such as by screws. The first end of the rotating body 16 matches the second end of the support base 6, ensuring that the rotating body 16 is secured and supported. The first end of the rotating body 16 is connected to the second end of the support base 6. A guide keyway is provided on the inner wall of the second side of the movable baffle 10, and an external connection keyway 7 is provided on the first end of the outer sleeve 1. The guide keyway mates with the external connection keyway 7. This allows the outer sleeve 1 to move synchronously with the movable baffle 10.

[0041] Specifically, the bearing support frame 12 is provided with a first groove and a second groove, the second groove is close to the first end of the movable baffle 10, and the first groove is away from the first end of the movable baffle 10, the first groove is fixedly installed with a third friction plate 13, and the second groove is installed with a thrust bearing 11; the first end of the movable baffle 10 is fixedly connected to the second end of the bearing support frame 12, and the second end of the movable baffle 10 is provided with a third groove, and the second friction plate 9 is fixedly installed in the third groove; the retaining ring 4 is connected with the moving component; there are two voice coil motors 5, and the two voice coil motors 5 are symmetrically arranged in the transmission On both sides of the shaft 2; the first end of the voice coil motor 5 is connected to the supporting base 6, and the second end of the voice coil motor 5 is fixedly connected to the retaining ring 4, and the voice coil motor 5 can make reciprocating linear motion along the axis, and the voice coil motor 5 can drive the retaining ring 4 to move; the outer fixing plate 3 is provided with a fourth groove on the side away from the second end of the transmission shaft 2, and the first friction plate 8 is installed in the fourth groove, and the first friction plate 8 is relatively matched with the second friction plate 9; the second end of the rotating body 16 is provided with a fifth groove, and the fourth friction plate 14 is fixedly installed in the fifth groove, and the third friction plate 13 is relatively matched with the fourth friction plate 14.

[0042] Exemplarily, the bearing support frame 12 is respectively provided with a first groove and a second groove, wherein the first groove is away from the first end of the movable baffle 10, and the second groove is close to the first end of the movable baffle 10. The first groove is fixedly installed with a third friction plate 13, and the second groove is installed with a thrust bearing 11. The other side of the thrust bearing 11 is a retaining ring 4. Since the retaining ring 4 in contact with the bearing support frame 12 cannot rotate, the thrust bearing 14 can ensure that the bearing support frame 12 rotates stably while transmitting force or motion, thereby reducing friction. The first end of the movable baffle 10 is fixedly connected to the second end of the bearing support frame 12, and the second end of the movable baffle 10 is provided with a third groove, and the second friction plate 9 is fixedly installed in the third groove. There is a matching space between the retaining ring 4 and the moving component, that is, there is a matching space with the movable baffle 10, the bearing support frame 12 and the thrust bearing 11. There are two voice coil motors 5, and the two voice coil motors 5 are symmetrically arranged on both sides of the transmission shaft 2. Two voice coil motors 5 are designed here, and are arranged symmetrically so that the parts in contact with them are evenly stressed and have high reliability. The first end of the voice coil motor 5 is connected to the support base 6, and the second end of the voice coil motor 5 is fixedly connected to the retaining ring 4. Preferably, the voice coil motor 5 is connected to the retaining ring 4 by bolts. The voice coil motor 5 can make reciprocating linear motion along the axis, which enables the voice coil motor 5 to drive the retaining ring 4 to move. When the voice coil motor 5 moves, the motion is transmitted to the moving component through the retaining ring 4 to complete the corresponding motion. The clutch and brake device can be fixed to the side plate of the robot away from the corresponding power output through the external fixing plate 3, such as by screws. The external fixing plate 3 is relatively independent of the transmission shaft 2 or the outer sleeve 1, and does not rotate with the rotation of the transmission shaft 2 or the outer sleeve 1. A fourth groove is provided on the side of the outer fixing plate 3 away from the second end of the transmission shaft 2, and the first friction plate 8 is installed in the fourth groove, and the first friction plate 8 and the second friction plate 9 are relatively matched; a fifth groove is provided on the second end of the rotating body 16, and the fourth friction plate 14 is fixedly installed in the fifth groove, and the third friction plate 13 and the fourth friction plate 14 are relatively matched.

[0043] Specifically, the first end of the movable baffle 10 is fixedly connected to the second end of the bearing support frame 12 by bolts. The first groove is provided with a screw hole, and the third friction plate 13 is fixedly installed in the first groove by bolts. The fifth groove is provided with a screw hole, and the fourth friction plate 14 is fixedly installed in the fifth groove by bolts.

[0044] For example, the first end of the movable baffle 10 and the second end of the bearing support frame 12 can be fixedly connected in a variety of ways. In this embodiment, a bolted connection is used. The first groove is provided with a screw hole, and the third friction plate 13 is fixedly mounted in the first groove via a bolt. The fifth groove is provided with a screw hole, and the fourth friction plate 14 is fixedly mounted in the fifth groove via a bolt. This connection method makes it easier to replace the friction plates.

[0045] Specifically, the opposing surfaces of the first friction plate 8 and the second friction plate 9 are each provided with friction patterns, enabling friction between the first friction plate 8 and the second friction plate 9. The opposing surfaces of the first friction plate 8 and the second friction plate 9 are each provided with serration patterns, enabling meshing between the first friction plate 8 and the second friction plate 9. The opposing surfaces of the third friction plate 13 and the fourth friction plate 14 are each provided with friction patterns, enabling friction between the third friction plate 13 and the fourth friction plate 14. The opposing surfaces of the third friction plate 13 and the fourth friction plate 14 are each provided with serration patterns, enabling meshing between the third friction plate 13 and the fourth friction plate 14.

[0046] For example, friction or meshing can be used between the first friction plate 8 and the second friction plate 9, and between the third friction plate 13 and the fourth friction plate 14, to generate sufficient friction between them. Different types of friction plates can be selected based on the actual calculated force and installed in the locations where the friction plates are placed in the present invention. When using friction, the facing surfaces of the first friction plate 8 and the second friction plate 9 are each provided with friction patterns, enabling friction between the first friction plate 8 and the second friction plate 9. The facing surfaces of the third friction plate 13 and the fourth friction plate 14 are each provided with friction patterns, enabling friction between the third friction plate 13 and the fourth friction plate 14. When using meshing, the facing surfaces of the first friction plate 8 and the second friction plate 9 are each provided with serrations, enabling meshing between the first friction plate 8 and the second friction plate 9. The facing surfaces of the third friction plate 13 and the fourth friction plate 14 are each provided with serrations, enabling meshing between the third friction plate 13 and the fourth friction plate 14.

[0047] The present invention realizes the clutching and braking between the coaxial inner shaft and the outer cylinder in the following manner.

[0048] The support base 6 is secured to the outer fixed plate 3. Power is introduced from the first side of the drive shaft 2, causing the drive shaft 2 to rotate and drive the rotating body 16 to move synchronously. When the friction plate is not engaged, the drive shaft 16 separates from the outer sleeve 1. At this point, the outer sleeve 1's motion is undefined. The voice coil motor 5 is activated, causing it to move toward the first side of the drive shaft 2. This, in turn, drives the moving components (movable baffle 10, thrust ball bearing 11, and bearing support frame 12) to the right via the retaining ring 4. At this point, the third friction plate 13 moves rightward, creating friction or engagement with the fourth friction plate 14 (different friction plates function differently). The friction generated between these two forces synchronizes the moving components with the rotating body 16. Because the outer sleeve 1 is connected to the movable baffle 10 (a portion of the moving component) via the external connecting keyway 7, the outer sleeve 1 now moves synchronously with the drive shaft 2. The voice coil motor 5 is redirected to the left, driving the moving components to the left via the retaining ring 4, causing the third friction plate 13 to separate from the fourth friction plate 14. At this time, the first friction plate 8 and the second friction plate 9 produce friction or engagement. Since the outer fixed plate 3 connected to the first friction plate 8 is fixed, the movable baffle 10 is fixed, thereby the outer sleeve 1 is also fixed, and the transmission shaft 2 rotates.

[0049] In this invention, the left-right motion of the voice coil motor 5 drives the moving member to move left and right, thereby disengaging or engaging the first friction plate 8 with the second friction plate 9, and the third friction plate 13 with the fourth friction plate 14, respectively. This allows the drive shaft 2 to continue rotating while the outer sleeve 1 is fixed, and also allows the outer sleeve 1 and drive shaft 2 to rotate synchronously. Because the moving member has a small left-right motion range, this clutching and braking process is completed quickly and efficiently.

[0050] The clutch and brake device designed by the present invention can be used on robots, especially small robots.

[0051] The coaxial shaft cylinder clutch and brake device designed by the present invention has the advantages of small size, simple structure, high reliability, large friction force, and can realize dual functions of clutch and brake. The clutch-braking process is completed in a short time and with high efficiency.

[0052] The above are merely embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A coaxial shaft cylinder clutch and braking device, characterized in that: The clutch and brake device comprises: An outer sleeve (1), a transmission shaft (2), an outer fixing plate (3), a retaining ring (4), a voice coil motor (5), a supporting base (6), an outer connecting keyway (7), a first friction plate (8), a second friction plate (9), a moving component, a third friction plate (13), a fourth friction plate (14), an inner connecting keyway (15) and a rotating body (16); The moving component comprises a movable baffle (10), a thrust ball bearing (11) and a bearing support frame (12); The outer sleeve (1) is sleeved on the transmission shaft (2), and the outer sleeve (1) is close to the second end of the transmission shaft (2); The outer fixing plate (3) is sleeved on the outer sleeve (1), and the outer fixing plate (3) is close to the first end of the outer sleeve (1); The movable baffle (10) is sleeved on the outer sleeve (1), the movable baffle (10) is close to the first end of the outer sleeve (1), and the outer sleeve (1) and the movable baffle (10) are capable of rotating synchronously; The retaining ring (4) is sleeved on the movable retaining plate (10); The support base (6) is sleeved on the transmission shaft (2), and the support base (6) is close to the first end of the transmission shaft (2); The transmission shaft (2) is provided with the inner connection keyway (15), and the inner connection keyway (15) is close to the first end of the transmission shaft (2); The rotating body (16) is sleeved on the transmission shaft (2), and the transmission shaft (2) is connected to the rotating body (16) via the inner connection keyway (15), and the transmission shaft (2) can drive the rotating body (16) to rotate; The first end of the rotating body (16) is structurally matched with the second end of the supporting base (6), and the first end of the rotating body (16) is connected to the second end of the supporting base (6); The bearing support frame (12) is provided with a first groove and a second groove, the second groove is close to the first end of the movable baffle (10), the first groove is away from the first end of the movable baffle (10), a third friction plate (13) is fixedly installed in the first groove, and a thrust ball bearing (11) is installed in the second groove; The first end of the movable baffle (10) is fixedly connected to the second end of the bearing support frame (12); the second end of the movable baffle (10) is provided with a third groove, and the second friction plate (9) is fixedly installed in the third groove; The retaining ring (4) is cooperatively connected with the moving component; There are two voice coil motors (5), and the two voice coil motors (5) are symmetrically arranged on both sides of the transmission shaft (2); the first end of the voice coil motor (5) is connected to the support base (6), and the second end of the voice coil motor (5) is fixedly connected to the retaining ring (4); the voice coil motor (5) can make reciprocating linear motion along the axis, and the voice coil motor (5) can drive the retaining ring (4) to move; A fourth groove is provided on a side of the outer fixing plate (3) away from the second end of the transmission shaft (2), a first friction plate (8) is installed in the fourth groove, and the first friction plate (8) and the second friction plate (9) are relatively matched; A fifth groove is provided at the second end of the rotating body (16), the fourth friction plate (14) is fixedly installed in the fifth groove, and the third friction plate (13) and the fourth friction plate (14) are relatively matched; The first end of the movable baffle (10) is fixedly connected to the second end of the bearing support frame (12) by bolts; A guide keyway is provided on the inner wall of the second side of the movable baffle (10), and an external connection keyway (7) is provided on the first end of the outer sleeve (1), wherein the guide keyway is cooperatively connected with the external connection keyway (7).

2. The clutch and brake device according to claim 1, characterized in that: The first groove is provided with a screw hole, and the third friction plate (13) is fixedly installed in the first groove by means of bolts.

3. The clutch and brake device according to claim 1, characterized in that: The fifth groove is provided with a screw hole, and the fourth friction plate (14) is fixedly installed in the fifth groove by means of bolts.

4. The clutch and brake device according to claim 1, characterized in that: The opposing surfaces of the first friction plate (8) and the second friction plate (9) are respectively provided with friction patterns, and the first friction plate (8) and the second friction plate (9) can generate friction.

5. The clutch and brake device according to claim 1, characterized in that: The opposing surfaces of the first friction plate (8) and the second friction plate (9) are respectively provided with serrations, and the first friction plate (8) and the second friction plate (9) are capable of meshing.

6. The clutch and brake device according to claim 1, 2 or 3, characterized in that: The opposing surfaces of the third friction plate (13) and the fourth friction plate (14) are respectively provided with friction patterns, and the third friction plate (13) and the fourth friction plate (14) are capable of generating friction.

7. The clutch and brake device according to claim 1, 2 or 3, characterized in that: The opposing surfaces of the third friction plate (13) and the fourth friction plate (14) are respectively provided with serrations, and the third friction plate (13) and the fourth friction plate (14) are capable of meshing.

Images