Dustproof and waterproof ring for human robot executor

Abstract

The application relates to the technical field of robot executor sealing, in particular to a dustproof and waterproof ring for a pedestrian robot executor, which comprises a sealing ring and a framework installed on the outer ring of the sealing ring, the sealing ring covers part of the framework to form a half-cover structure, and a dustproof lip and a sealing lip are arranged on the inner ring of the sealing ring in opposite directions, and the application has the advantages of improved sealing performance.

Description

Technical Field

[0001] This application relates to the technical field of sealing robot actuators, and in particular to a dustproof and waterproof ring for a humanoid robot actuator. Background Technology

[0002] Humanoid robots are undoubtedly one of the most exciting and challenging frontiers in the current technology field. In application scenarios, humanoid robots are always limited by their environmental adaptability. The problems of "not easy to use, not daring to use, and not knowing how to use" have long plagued industry customers.

[0003] Most of the humanoid robot products currently on the market focus on optimizing motion performance or adapting to indoor scenarios. However, when faced with the rain and dust protection requirements for outdoor patrols or the humid and dusty environments encountered in factory operations, they often come to a standstill due to insufficient protection of core components and limited temperature adaptability.

[0004] The actuator is the core transmission component of the robot, which converts energy into mechanical motion. It needs to have certain waterproof and dustproof performance, and at least an IP67 protection level to cope with complex environments such as humid, dusty or rainy and snowy weather. However, the protection level of actuators on the market is currently only IP54. Utility Model Content

[0005] To improve the protection level of the actuator's sealing ring, this application provides a dustproof and waterproof ring for a humanoid robot actuator.

[0006] This application provides a dustproof and waterproof ring for a humanoid robot actuator, which adopts the following technical solution: A dustproof and waterproof ring for a humanoid robot actuator includes a sealing ring and a skeleton installed on the outer ring of the sealing ring. The sealing ring covers part of the skeleton to form a semi-enclosed structure. The inner ring of the sealing ring is provided with a dustproof lip and a sealing lip arranged in opposite directions.

[0007] In one embodiment: when installing the dustproof and waterproof ring, the sealing ring and the outer ring of the skeleton are interference-fitted with the groove for installing the dustproof and waterproof ring, and the exposed end of the outer ring of the skeleton is provided with a guide slope.

[0008] In one embodiment: the outer ring of the sealing ring has a radially protrusion near the end away from the skeleton, and the protrusion is triangular.

[0009] In one embodiment: the end of the dustproof lip located inside the sealing ring is rounded, and a dustproof part extends axially along the sealing ring from the end of the dustproof lip. The minimum diameter of the dustproof part is greater than the minimum diameter of the dustproof lip; the minimum diameter of the dustproof part is less than the outer diameter of the piston rod.

[0010] In one embodiment: the end of the sealing lip located inside the sealing ring is rounded, and a sealing portion extends axially along the sealing ring from the end of the sealing lip. The minimum diameter of the sealing portion is greater than the minimum diameter of the sealing lip; the minimum diameter of the sealing portion is greater than the outer diameter of the piston rod.

[0011] In one embodiment: along the circumferential direction of the sealing ring, the end of the dustproof lip is located inside the end face of the sealing ring, and the end of the sealing lip is located inside the end face of the sealing ring.

[0012] In one embodiment, the thickness of the dustproof lip is less than the thickness of the sealing lip.

[0013] In one embodiment, the length of the dustproof lip is less than the length of the sealing lip.

[0014] In one embodiment, the angle between the sealing lip and the sealing ring is greater than the angle between the dustproof lip and the sealing ring.

[0015] In one embodiment: one end of the skeleton is bent and extends radially into the sealing ring.

[0016] In summary, this application has the following beneficial effects: 1. The interference fit design of the sealing ring and the outer diameter of the groove can effectively prevent dust and water from entering the system from the outer diameter of the groove, and also protect the metal skeleton from corrosion. 2. The specially designed dustproof lip can scrape off the dust from the piston rod during the reciprocating motion of the rod, and also prevent dust and water from entering the system from the piston rod; 3. The sealing lip prevents the lubricating oil inside from leaking out of the system; 4. The outer diameter of the skeleton and the groove are interference-fitted, which is very strong and prevents the sealing ring from moving in the groove. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the dustproof and waterproof ring of the humanoid robot actuator in this embodiment; Figure 2 This is a schematic diagram of the structure when the dustproof and waterproof ring of the humanoid robot actuator is installed on the actuator in this embodiment.

[0018] In the figure, 10 is the piston rod; 20 is the groove; 100 is the sealing ring; 110 is the opening; 120 is the protrusion; 200 is the skeleton; 210 is the guide slope; 300 is the sealing lip; 310 is the sealing part; 400 is the dustproof lip; 410 is the dustproof part; and 420 is the rounded corner setting. Detailed Implementation

[0019] The present application will be further described in detail below with reference to the accompanying drawings.

[0020] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] A dustproof and waterproof ring for a humanoid robot actuator, such as Figure 1 As shown, the device includes a sealing ring 100 and a frame 200 installed on the outer ring of the sealing ring 100. The sealing ring 100 partially covers the frame 200 to form a semi-enclosed structure. One end of the frame 200 is bent and extends radially into the sealing ring 100, while the other end of the frame 200 is flush with and coplanar with the end face of the sealing ring 100. Through the frame 200, the outer ring of the dustproof and waterproof ring is partially composed of the frame 200 along the axial direction, with the remaining portion being the sealing ring 100.

[0022] The sealing ring 100 is made of polyurethane material, and the skeleton 200 is made of metal. During injection molding, the sealing ring 100 and the skeleton 200 are directly injection molded onto the skeleton 200, making them an integral unit. Therefore, an opening 110 is formed on one end face of the sealing ring 100, which is used by the mold to position the skeleton 200.

[0023] Reference Figure 2 When installing the dustproof and waterproof ring, the outer ring of the sealing ring 100 and the skeleton 200 are interference-fitted with the groove 20 used to install the dustproof and waterproof ring, and the exposed end of the outer ring of the skeleton 200 is provided with a guide slope 210.

[0024] In addition, in order to achieve a better sealing effect, a radial protrusion 120 is provided on the outer ring of the sealing ring 100 near the end away from the skeleton 200. The protrusion 120 is triangular.

[0025] The inner ring of the sealing ring 100 is provided with a dustproof lip 400 and a sealing lip 300 arranged in opposite directions.

[0026] like Figure 1 and Figure 2 As shown, the end of the dustproof lip 400 located inside the sealing ring 100 is rounded at one end 420. A dustproof part 410 extends axially along the sealing ring 100 from the end of the dustproof lip 400. The minimum diameter of the dustproof part 410 is greater than the minimum diameter of the dustproof lip 400.

[0027] The minimum diameter of the dustproof part 410 is smaller than the outer diameter of the piston rod 10, and the radius difference between the minimum radius of the dustproof part 410 and the outer diameter of the piston rod 10 is d.

[0028] The end of the sealing lip 300 located inside the sealing ring 100 is rounded at one end 420. A sealing portion 310 extends axially from the end of the sealing lip 300 along the sealing ring 100. The minimum diameter of the sealing portion 310 is greater than the minimum diameter of the sealing lip 300.

[0029] The minimum diameter of the sealing part 310 is greater than the outer diameter of the piston rod 10, and the radius difference between the minimum radius of the sealing part 310 and the outer diameter of the piston rod 10 is e.

[0030] Along the circumferential direction of the sealing ring 100, the end of the dust lip 400 is located inside the end face of the sealing ring 100, and the end of the sealing lip 300 is located inside the end face of the sealing ring 100. Thus, during use, the dust lip 400 and the sealing lip 300 will not protrude from the end face of the sealing ring 100 after deforming due to contact with the piston rod 10.

[0031] The thickness of the dustproof lip 400 is less than the thickness of the sealing lip 300, and the length of the dustproof lip 400 is less than the length of the sealing lip 300. Along the axis, the length of the sealing lip 300 is a, and the length of the dustproof lip 400 is b.

[0032] The angle between the sealing lip 300 and the sealing ring 100 is greater than the angle between the dustproof lip 400 and the sealing ring 100. The downward angle θ of the sealing lip 300 and the downward angle γ of the dustproof lip 400 are the same.

[0033] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dustproof and waterproof ring for a humanoid robot actuator, characterized in that: It includes a sealing ring (100) and a skeleton (200) installed on the outer ring of the sealing ring (100). The sealing ring (100) covers part of the skeleton (200) to form a semi-enclosed structure. The inner ring of the sealing ring (100) is provided with a dustproof lip (400) and a sealing lip (300) arranged in opposite directions.

2. The dustproof and waterproof ring for a humanoid robot actuator according to claim 1, characterized in that: When installing the dustproof and waterproof ring, the outer ring of the sealing ring (100) and the skeleton (200) are interference-fitted with the groove (20) for installing the dustproof and waterproof ring, and the exposed end of the skeleton (200) is provided with a guide slope (210).

3. The dustproof and waterproof ring for a humanoid robot actuator according to claim 2, characterized in that: The outer ring of the sealing ring (100) has a radial protrusion (120) near the end away from the skeleton (200), and the protrusion (120) is triangular.

4. The dustproof and waterproof ring for a humanoid robot actuator according to claim 1, characterized in that: The end of the dustproof lip (400) located inside the sealing ring (100) is rounded (420). A dustproof part (410) extends axially along the sealing ring (100) from the end of the dustproof lip (400). The minimum diameter of the dustproof part (410) is greater than the minimum diameter of the dustproof lip (400). The minimum diameter of the dustproof part (410) is smaller than the outer diameter of the piston rod (10).

5. The dustproof and waterproof ring for a humanoid robot actuator according to claim 1, characterized in that: The end of the sealing lip (300) located inside the sealing ring (100) is rounded (420). A sealing part (310) extends axially from the end of the sealing lip (300) along the sealing ring (100). The minimum diameter of the sealing part (310) is greater than the minimum diameter of the sealing lip (300). The minimum diameter of the sealing part (310) is greater than the outer diameter of the piston rod (10).

6. The dustproof and waterproof ring for a humanoid robot actuator according to claim 1, characterized in that: Along the circumferential direction of the sealing ring (100), the end of the dustproof lip (400) is located inside the end face of the sealing ring (100), and the end of the sealing lip (300) is located inside the end face of the sealing ring (100).

7. The dustproof and waterproof ring for a humanoid robot actuator according to claim 1, characterized in that: The thickness of the dustproof lip (400) is less than the thickness of the sealing lip (300).

8. The dustproof and waterproof ring for a humanoid robot actuator according to claim 7, characterized in that: The length of the dustproof lip (400) is less than the length of the sealing lip (300).

9. A dustproof and waterproof ring for a humanoid robot actuator according to claim 8, characterized in that: The angle between the sealing lip (300) and the sealing ring (100) is greater than the angle between the dustproof lip (400) and the sealing ring (100).

10. The dustproof and waterproof ring for a humanoid robot actuator according to claim 1, characterized in that: One end of the skeleton (200) is bent and extends radially into the sealing ring (100).

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