A special type of worm gear planetary gear motor

Abstract

This utility model discloses a non-standard worm gear planetary geared motor, including a motor body and a Hall structure. The Hall pad of the Hall structure is concentrically positioned with the rear end cover of the motor body through a first positioning structure, and is fixed to the inner side of the rear end cover by a first fastener. This utility model comprehensively utilizes multiple sealing methods such as O-rings, cable sleeves, waterproof connectors, and sealing silicone to form a three-dimensional, all-round sealing system, effectively preventing dust intrusion and water impact.

Description

Technical Field

[0001] This utility model relates to a geared motor, specifically a non-standard worm gear planetary geared motor. Background Technology

[0002] Traditional worm gear planetary geared motors are widely used in many fields such as automation equipment, robotics, medical instruments, and smart homes due to their advantages such as compact structure, large transmission ratio, and high output torque. In these applications, the motor often needs to integrate position or speed sensors (such as Hall sensors) to achieve precise closed-loop control.

[0003] Currently, the common method for integrating Hall effect sensors into motors is to place the sensor circuit board near the rear end cover of the motor and use a magnet to sense the signal mounted on the rotor shaft. However, this arrangement faces significant challenges in applications requiring high protection ratings (such as IP66 and above). The main problems are as follows:

[0004] Conventional Hall effect mounting structures have relatively simple sealing measures, typically relying on a single O-ring or sealant for static sealing. Multiple potential points for dust and water ingress exist at the motor lead-out interface, circuit board mounting screw holes, and housing mating surfaces. This structure is ill-suited to effectively resist high-pressure water jets or dust intrusion, and cannot meet the demands of high-requirement applications such as outdoor and washing environments.

[0005] The space inside the motor, especially at the junction of the reduction gear and the motor body, is extremely limited. Within such a compact space, ensuring a precise and stable air gap and relative position between the Hall magnet and the sensor to guarantee signal accuracy, while simultaneously arranging a complex sealing structure, presents immense design challenges. Often, one compromises over the other, sacrificing protection for accuracy, or increasing size for sealing. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a non-standard worm gear planetary gear motor to solve the problems existing in the background art.

[0007] This utility model of a non-standard worm gear planetary geared motor is achieved through the following technical solution, including the motor body and a Hall structure;

[0008] The Hall pad of the Hall structure is concentrically positioned with the rear end cover of the motor body through the first positioning structure, and is fixed to the inside of the rear end cover of the motor by the first fastener.

[0009] As a preferred technical solution, the Hall structure includes a wire sheath, a Hall pad, and a Hall magnet;

[0010] The cable sleeve is installed in the threaded hole on the rear end cover of the motor, and the lead wire is placed inside the cable sleeve; the Hall magnet is press-fitted and fixed to the end of the motor rotor shaft of the motor body.

[0011] As a preferred technical solution, the Hall pad is equipped with a Hall circuit board through a second positioning structure, and the terminals of the Hall circuit board are connected to the terminals of the lead wires.

[0012] As a preferred technical solution, the end face of the motor rear end cover is provided with a groove, and a first sealing O-ring is provided in the groove;

[0013] The motor rear end cover is covered with a Hall effect protective shell, the open end of which is pressed against the sealing O-ring and connected and fixed to the motor rear end cover by a third fastener.

[0014] As a preferred technical solution, a waterproof connector is installed at the lead hole of the Hall protective housing, and the lead wire passes through the waterproof connector.

[0015] As a preferred technical solution, the mounting hole of the third fastener is filled with sealing silicone.

[0016] As a preferred technical solution, the first positioning structure includes a positioning boss on the Hall pad and a center hole in the motor rear end cover, thereby achieving concentric positioning of the Hall pad and the motor rear end cover through the positioning boss and the center hole.

[0017] As a preferred technical solution, the second positioning structure includes positioning holes disposed on the Hall circuit board and positioning posts on the Hall pad; the Hall pad and the Hall circuit board are positioned by the positioning posts and positioning holes.

[0018] The beneficial effects of this utility model are:

[0019] This utility model comprehensively utilizes multiple sealing methods such as O-rings, cable sleeves, waterproof connectors, and sealing silicone to form a three-dimensional, all-round sealing system that effectively prevents dust intrusion and water flow impact.

[0020] The entire Hall effect assembly of this invention is encapsulated in an independent Hall effect protective housing, forming a double isolation from the internal environment of the motor, which greatly improves reliability.

[0021] This invention addresses the constraint of limited internal space in motors by highly integrating components such as sensors, circuit boards, and magnets into a compact space consisting of a rear end cover and a protective shell, achieving a functional layout within an extremely small space. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0025] Explanation of reference numerals in the attached figures

[0026] 1. Motor rear end cover; 2. First sealing O-ring; 3. Wire sleeve; 4. Hall effect pad; 5. First fastener; 6. Hall effect magnet; 7. Hall effect circuit board; 8. Second fastener; 9. Lead wire; 10. Waterproof connector; 11. Hall effect protective housing; 12. Third fastener; 13. Second sealing O-ring; 14. Sealing silicone. Detailed Implementation

[0027] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0028] like Figures 1-2 As shown, this utility model discloses a non-standard worm gear planetary geared motor, which includes a motor body and a Hall structure;

[0029] The Hall pad 4 of the Hall structure is concentrically positioned with the motor rear end cover 1 of the motor body through the first positioning structure, and is fixed to the inner side of the motor rear end cover 1 by the first fastener 5.

[0030] The Hall structure includes a wire sheath 3, a Hall pad 4, and a Hall magnet 6.

[0031] The wire sleeve 3 is installed in the threaded hole on the rear end cover 1 of the motor, and the lead wire 9 is set inside the wire sleeve 3; the Hall magnet 6 is press-fitted and fixed to the end of the motor rotor shaft of the motor body.

[0032] The Hall pad 4 is mounted with a Hall circuit board 7 via a second positioning structure, and the terminals of the Hall circuit board 7 are connected to the terminals of the lead wire 9.

[0033] Among them, the end face of the motor rear end cover 1 is provided with a groove, and a first sealing O-ring 2 is provided in the groove;

[0034] The motor rear end cover 1 is covered with a Hall effect protective shell 11, the open end of which is pressed against the sealing O-ring and connected and fixed to the motor rear end cover 1 by a third fastener 12.

[0035] The Hall effect protective housing 11 has a waterproof connector 10 installed at the lead hole, and the lead wire 9 passes through the waterproof connector 10.

[0036] The mounting hole of the third fastener 12 is filled with sealing silicone 14.

[0037] In addition, the first positioning structure includes a positioning boss on the Hall pad 4 and a center hole on the motor rear end cover 1, and the Hall pad 4 and the motor rear end cover 1 are concentrically positioned through the positioning boss and the center hole.

[0038] In addition, the second positioning structure includes positioning holes on the Hall circuit board 7 and positioning posts on the Hall pad 4; the Hall pad 4 and the Hall circuit board 7 are positioned by the positioning posts and positioning holes.

[0039] In addition, the first fastener 5 is a pan head screw, the second fastener 8 is a self-tapping screw, and the third fastener 12 is a pan head screw, and a second O-ring 13 for sealing is fitted on the third fastener 12.

[0040] In this embodiment, the cable sleeve 3 is a locking cable sleeve with a threaded cap; the connection between the Hall protection housing 11 and the motor rear end cover 1 is statically sealed by the first sealing O-ring 2.

[0041] In this embodiment, the waterproof connector 10 is a locking waterproof connector with a clamping rubber sleeve.

[0042] In addition, the sealing silicone 14 is K-704BL sealing silicone.

[0043] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A non-standard worm gear planetary geared motor, characterized in that, Including the motor body and Hall effect structure; The Hall pad (4) of the Hall structure is concentrically positioned with the motor rear end cover (1) of the motor body through the first positioning structure, and is fixed to the inner side of the motor rear end cover (1) by the first fastener (5).

2. The irregular worm gear planetary geared motor according to claim 1, characterized in that: The Hall structure includes a wire sheath (3), a Hall pad (4), and a Hall magnet (6); The wire sleeve (3) is installed in the threaded hole on the rear end cover (1) of the motor, and the lead wire (9) is set inside the wire sleeve (3); the Hall magnet (6) is press-fitted and fixed to the end of the motor rotor shaft of the motor body.

3. The irregular worm gear planetary gear motor according to claim 1, characterized in that: The Hall pad (4) is equipped with a Hall circuit board (7) through a second positioning structure, and the terminals of the Hall circuit board (7) are connected to the terminals of the lead wire (9).

4. The irregular worm gear planetary geared motor according to claim 1, characterized in that: The end face of the motor rear end cover (1) is provided with a groove, and a first sealing O-ring (2) is provided in the groove; The motor rear end cover (1) is covered with a Hall effect protective shell (11), the open end of which is pressed against the sealing O-ring and connected and fixed to the motor rear end cover (1) by a third fastener (12).

5. The irregular worm gear planetary geared motor according to claim 1, characterized in that: A waterproof connector (10) is installed at the lead hole of the Hall protective housing (11), and the lead wire (9) passes through the waterproof connector (10).

6. The irregular worm gear planetary geared motor according to claim 4, characterized in that: The mounting hole of the third fastener (12) is filled with sealing silicone (14).

7. The irregular worm gear planetary geared motor according to claim 1, characterized in that: The first positioning structure includes a positioning boss on the Hall pad (4) and a center hole on the motor rear end cover (1). The Hall pad (4) and the motor rear end cover (1) are concentrically positioned through the positioning boss and the center hole.

8. The irregular worm gear planetary geared motor according to claim 1, characterized in that: The second positioning structure includes positioning holes on the Hall circuit board (7) and positioning posts on the Hall pad (4); the Hall pad (4) and the Hall circuit board (7) are positioned by the positioning posts and positioning holes.

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