Waterproof and moistureproof multi-sealing servo motor

Abstract

The utility model relates to the technical field of servo motors, in particular to a waterproof and moistureproof multi-sealing servo motor, which comprises a shell, limiting holes are symmetrically formed in one ends of two wider side surfaces of the outer part of the shell, a limiting groove is formed in the edge of an outer mounting groove of the shell, a first sealing ring is mounted on the inner side wall of the limiting groove, and a second sealing ring is mounted on the inner side wall of the limiting groove. According to the waterproof and moisture-proof multi-sealing servo motor, the limiting frame is connected into the limiting groove and extrudes the first sealing ring, so that the sealing performance of the shell and the shell cover during installation is ensured, and after the shell and the shell cover are attached and installed, the sealing ring slides outside the shell, so that the sealing performance of the shell and the shell cover is improved; and one end of the sealing ring is extruded and attached to a third sealing ring on the shell cover, and a movable rod is connected into a limiting hole to fixedly mount the sealing ring on the shell, so that the problem that the sealing effect of a traditional servo motor is poor, and external water vapor can enter the interior of the shell to cause damage to the servo motor is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of servo motor technology, specifically to a waterproof and moisture-proof multi-sealed servo motor. Background Technology

[0002] A servo motor is an engine that controls the operation of mechanical components in a servo system. It is an auxiliary motor indirect speed change device. Servo motors can control speed and have very accurate positioning. They can convert voltage signals into torque and speed to drive the controlled object. The rotor speed of a servo motor is controlled by the input signal and can respond quickly. In automatic control systems, it is used as an actuator and has characteristics such as small electromechanical time constant and high linearity. It can convert the received electrical signal into angular displacement or angular velocity output on the motor shaft. Traditional servo motors have poor sealing effects, allowing external moisture to enter the interior of the housing, which can damage the servo motor and reduce its service life.

[0003] In summary, this utility model solves the existing problems by designing a waterproof and moisture-proof multi-sealed servo motor. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof and moisture-proof multi-sealed servo motor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A waterproof and moisture-proof multi-sealed servo motor includes a housing. Limiting holes are symmetrically formed at one end of the two wider outer sides of the housing. A limiting groove is formed at the edge of the outer mounting groove of the housing. A first sealing ring is installed on the inner wall of the limiting groove. A housing cover is installed at one end of the outer side of the housing near the limiting groove. A through hole is formed on the outer surface of the housing cover. A second sealing ring is installed on the inner wall of the through hole. A rotating shaft is installed on the outer surface of the housing cover inside the through hole. A limiting frame is installed at one end of the outer side of the housing cover near the housing. A third sealing ring is installed on the outer surface of the housing cover outside the limiting frame.

[0007] A sealing ring is installed on the outside of the housing. A fourth sealing ring is installed on the outside of the sealing ring and on the side of the housing cover. Protrusions are symmetrically installed on both sides of the outside of the sealing ring. Cavities are symmetrically opened at both ends inside the sealing ring. A movable rod is installed between the two inner side walls of the cavity. A return spring is installed on the outer ring surface of the movable rod. A limit plate is installed at one end of the return spring and on the outer ring surface of the movable rod.

[0008] As a preferred embodiment of this utility model, threaded holes are provided at the four corners of the outer side of the shell cover, and the shell cover and the shell are connected by bolts passing through the threaded holes.

[0009] As a preferred embodiment of this utility model, the outer side dimension of the limiting frame matches the inner side wall dimension of the limiting groove, and the outer side of the limiting frame and the inner side wall of the limiting groove are slidably connected.

[0010] As a preferred embodiment of this utility model, the inner wall dimension of the sealing ring matches the outer side dimension of the housing, and the inner wall of the sealing ring and the outer side of the housing are slidably connected.

[0011] As a preferred embodiment of this utility model, the outer ring surface dimension of the movable rod matches the inner wall dimension of the limiting hole, and the outer ring surface of the movable rod is slidably connected to the inner wall of the limiting hole.

[0012] As a preferred embodiment of this utility model, one end of the movable rod extends through the inner wall of the cavity to the outside of the sealing ring and connects with the protrusion, and the end of the movable rod away from the protrusion passes through the inner wall of the reset spring, then through the limiting plate and extends to the inner and outer sides of the sealing ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, a waterproof and moisture-proof multi-sealed servo motor is designed. The limiting frame is connected to the inside of the limiting groove and the first sealing ring is squeezed to ensure the sealing between the housing and the cover during installation. After the housing and the cover are installed in close contact, the sealing ring is slid on the outside of the housing, so that one end of the sealing ring is squeezed and fitted with the third sealing ring on the cover. The sealing ring is fixed on the housing by the movable rod connected to the inside of the limiting hole. This effectively solves the problem that the traditional servo motor has poor sealing effect and external moisture can enter the inside of the housing, causing damage to the servo motor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Schematic diagram of structural layering;

[0017] Figure 3 This utility model Figure 2 Schematic diagram of the shell cover section;

[0018] Figure 4 This utility model Figure 2 Partial structural diagram;

[0019] Figure 5 This utility model Figure 4 Internal structural diagram.

[0020] In the diagram: 1. Housing; 101. Limiting hole; 102. Limiting groove; 2. First sealing ring; 3. Housing cover; 301. Through hole; 4. Second sealing ring; 5. Rotating shaft; 6. Limiting frame; 7. Third sealing ring; 8. Sealing ring; 801. Cavity; 9. Fourth sealing ring; 10. Protrusion; 11. Movable rod; 12. Return spring; 13. Limiting plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] For examples, please refer to Figure 1-5 This utility model provides a technical solution:

[0026] A waterproof and moisture-proof multi-sealed servo motor includes a housing 1. Limiting holes 101 are symmetrically opened at one end of the two wider outer sides of the housing 1. Limiting grooves 102 are opened at the edge of the outer mounting groove of the housing 1. A first sealing ring 2 is installed on the inner side wall of the limiting groove 102. A housing cover 3 is installed at one end of the outer side of the housing 1 near the limiting groove 102. A through hole 301 is opened on the outer side of the housing cover 3. A second sealing ring 4 is installed on the inner side wall of the through hole 301. A rotating shaft 5 is installed on the outer side of the housing cover 3 inside the through hole 301. A limiting frame 6 is installed at one end of the outer side of the housing cover 3 near the housing 1. A third sealing ring 7 is installed on the outer side of the housing cover 3 outside the limiting frame 6.

[0027] A sealing ring 8 is installed on the outside of the housing 1. A fourth sealing ring 9 is installed on the outside of the sealing ring 8 and on the side of the housing cover 3. Protrusions 10 are symmetrically installed on both sides of the outside of the sealing ring 8. Cavities 801 are symmetrically opened at both ends inside the sealing ring 8. A movable rod 11 is installed between the two side walls inside the cavity 801. A return spring 12 is installed on the outer ring surface of the movable rod 11. A limit plate 13 is installed at one end of the return spring 12 and on the outer ring surface of the movable rod 11.

[0028] For details, please refer to Figure 2 and Figure 3 The outer side dimensions of the limiting frame 6 match the inner side wall dimensions of the limiting groove 102, and the outer side of the limiting frame 6 and the inner side wall of the limiting groove 102 are slidably connected, thereby ensuring that when the housing 1 is installed with the housing cover 3 by bolts, the limiting frame 6 is inserted into the interior of the limiting groove 102 and squeezes the first sealing ring 2, thus ensuring the sealing between the housing 1 and the housing cover 3 during installation.

[0029] Furthermore, threaded holes are provided at the four corners of the outer side of the cover 3, and the cover 3 and the housing 1 are connected by bolts passing through the threaded holes, thereby ensuring that the cover 3 and the housing 1 are fixedly installed.

[0030] Furthermore, the inner wall dimension of the sealing ring 8 matches the outer side dimension of the housing 1, and the inner wall of the sealing ring 8 is slidably connected to the outer side of the housing 1. This ensures that after the housing 1 and the cover 3 are fitted together, by sliding the sealing ring 8 on the outside of the housing 1, one end of the sealing ring 8 is pressed and fitted against the third sealing ring 7 on the cover 3, thereby achieving better waterproof and moisture-proof performance through multiple seals.

[0031] Furthermore, the outer ring surface of the movable rod 11 matches the inner wall size of the limiting hole 101, and the outer ring surface of the movable rod 11 is slidably connected to the inner wall of the limiting hole 101, thereby ensuring that the sealing ring 8 is fixedly installed on the housing 1 by connecting the movable rod 11 to the inside of the limiting hole 101.

[0032] For specific details, please refer to the following: Figure 5 One end of the movable rod 11 passes through the inner wall of the cavity 801 and extends to the outside of the sealing ring 8, connecting with the protrusion 10. The end of the movable rod 11 away from the protrusion 10 passes through the inner wall of the return spring 12, then through the limiting plate 13, and extends to the inner and outer sides of the sealing ring 8. This ensures that by pulling the protrusion 10 outward, the movable rod 11 moves outward, simultaneously moving the limiting plate 13 and compressing the return spring 12. After pressing and fitting one end of the sealing ring 8 with the third sealing ring 7 on the cover 3, the protrusion 10 is released, the restriction of the return spring 12 is released, the movable rod 11 is reset and connected to the inside of the limiting hole 101, thereby fixing the sealing ring 8 on the housing 1 and ensuring the fit between one end of the sealing ring 8 and the third sealing ring 7.

[0033] The working process of this utility model is as follows: Using a waterproof and moisture-proof multi-sealed servo motor designed in this scheme, during the use of the servo motor, firstly, when the housing 1 is installed to the housing cover 3 with bolts, the limiting frame 6 is inserted into the limiting groove 102 and compresses the first sealing ring 2, ensuring the sealing between the housing 1 and the housing cover 3 during installation. The sealing inside the through hole 301 is ensured by setting the second sealing ring 4 to fit against the rotating shaft 5. After the housing 1 and housing cover 3 are installed and fitted together, the sealing ring 8 is slid outside the housing 1, causing one end of the sealing ring 8 to engage with... The third sealing ring 7 on the cover 3 is pressed and fitted. By pulling the protrusion 10 outward, the movable rod 11 moves outward, which in turn moves the limiting plate 13 and compresses the return spring 12. After pressing and fitting one end of the sealing ring 8 with the third sealing ring 7 on the cover 3, the protrusion 10 is released, the restriction of the return spring 12 is released, the movable rod 11 is reset and connected to the inside of the limiting hole 101, thereby fixing the sealing ring 8 on the housing 1 and ensuring the fit between one end of the sealing ring 8 and the third sealing ring 7. Thus, the waterproof and moisture-proof effect is better through multiple seals.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof and moisture-proof multi-sealed servo motor, comprising a housing (1), characterized in that: The outer side of the housing (1) has symmetrically provided limiting holes (101) on one end of the two wider sides. The outer side of the housing (1) has a limiting groove (102) at the edge of the mounting groove. A first sealing ring (2) is installed on the inner side wall of the limiting groove (102). A housing cover (3) is installed on the outer side of the housing (1) near the limiting groove (102). A through hole (301) is provided on the outer side of the housing cover (3). A second sealing ring (4) is installed on the inner side wall of the through hole (301). A rotating shaft (5) is installed on the outer side of the housing cover (3) and inside the through hole (301). A limiting frame (6) is installed on the outer side of the housing cover (3) near the housing (1). A third sealing ring (7) is installed on the outer side of the housing cover (3) and outside the limiting frame (6). A sealing ring (8) is installed on the outside of the housing (1). A fourth sealing ring (9) is installed on the outside of the sealing ring (8) and on the side of the housing cover (3). Protrusions (10) are symmetrically installed on the two outer sides of the sealing ring (8). Cavities (801) are symmetrically opened at both ends inside the sealing ring (8). A movable rod (11) is installed between the two inner side walls of the cavity (801). A return spring (12) is installed on the outer ring surface of the movable rod (11). A limit plate (13) is installed at one end of the return spring (12) and on the outer ring surface of the movable rod (11).

2. The waterproof and moisture-proof multi-sealed servo motor according to claim 1, characterized in that: The outer side of the cover (3) has threaded holes at the four corners, and the cover (3) and the housing (1) are connected by bolts passing through the threaded holes.

3. The waterproof and moisture-proof multi-sealed servo motor according to claim 1, characterized in that: The outer side dimensions of the limiting frame (6) match the inner side wall dimensions of the limiting groove (102), and the outer side of the limiting frame (6) and the inner side wall of the limiting groove (102) are slidably connected.

4. A waterproof and moisture-proof multi-sealed servo motor according to claim 1, characterized in that: The inner wall dimension of the sealing ring (8) matches the outer side dimension of the housing (1), and the inner wall of the sealing ring (8) is slidably connected to the outer side of the housing (1).

5. A waterproof and moisture-proof multi-sealed servo motor according to claim 1, characterized in that: The outer ring surface of the movable rod (11) matches the inner wall dimension of the limiting hole (101), and the outer ring surface of the movable rod (11) is slidably connected to the inner wall of the limiting hole (101).

6. A waterproof and moisture-proof multi-sealed servo motor according to claim 1, characterized in that: One end of the movable rod (11) passes through the inner wall of the cavity (801) and extends to the outside of the sealing ring (8) to connect with the protrusion (10). The end of the movable rod (11) away from the protrusion (10) passes through the inner wall of the return spring (12), then through the limiting plate (13) and extends to the inner and outer sides of the sealing ring (8).

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