Magnetic gear limiting structure of torque angle sensor

Abstract

The utility model discloses a magnetic gear limiting structure of a torque angle sensor, which belongs to the technical field of installation and assembly of the torque angle sensor and comprises a shell, a containing part is arranged on the shell, a first flange is arranged on the inner wall of the containing part, a second flange is further arranged on the inner wall of the containing part, and the first flange and the second flange are arranged on the shell. An injection molding hole is formed in the bottom of the containing part, an elastic arm is arranged on one side of the outer portion of the containing part, the containing part is of a structure with the middle of a cylinder being hollowed out, the first flange and the second flange are symmetrically distributed in the containing part, the second flange has a certain depth, and an injection molding hole is formed in the bottom of the shell. According to the magnetic gear limiting structure, the problems that the cost is high and procedures are complex when the position of the magnetic gear is restrained by a wedge shape due to the fact that an elastic support is installed in an existing magnetic gear limiting structure are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of installation and assembly of torque angle sensors, and particularly relates to a magnetic gear limiting structure of the torque angle sensor. Background Art

[0002] With the continuous advancement of industrial automation technology, more and more torque angle sensors are adopting magnetic gear limiters. These limiters accurately measure the torque angle sensor's rotation angle and, through the interaction of the magnetic gears, provide a limit function, ensuring that the sensor does not exceed a predetermined range during rotation, thereby protecting the sensor and related equipment from damage. Furthermore, because these limiters utilize a non-contact measurement method, they reduce failures caused by friction and wear between mechanical components, resulting in a longer service life and higher reliability for the torque angle sensor, enabling stable operation in harsh operating environments.

[0003] The existing magnetic gear limiting structure adopts the method of installing an elastic bracket and using a wedge to constrain the position of the magnetic gear to improve the accuracy. Since a part is added, the required process and cost of producing the magnetic gear limiting structure are inevitably increased. Utility Model Content

[0004] The purpose of the present utility model is to provide a magnetic gear limiting structure for a torque angle sensor in an existing device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a magnetic gear limiting structure for a torque angle sensor, comprising a housing, a receiving portion being formed on the upper surface of the housing, a first flange being mounted on the inner wall of the receiving portion, and a second flange being mounted on the inner wall of the receiving portion;

[0006] An injection hole is provided at the bottom of the receiving portion, and an elastic arm is provided on one side of the exterior of the receiving portion.

[0007] The present invention further illustrates that the storage portion is a structure in which the middle portion of a cylinder is hollowed out.

[0008] The present invention further illustrates that the first flange and the second flange are symmetrically distributed inside the receiving portion, and the second flange has a certain depth.

[0009] The present invention further describes that an injection hole is opened at the bottom of the shell, and the injection hole is located inside the storage portion.

[0010] The present invention further illustrates that a clamping claw is installed on the outer side of the storage portion.

[0011] The present invention further describes that a rotor seat is provided in the center of the shell.

[0012] The present invention further illustrates that two snap holes are symmetrically installed on the bottom surface of the shell, and a connector frame opening is opened through the shell.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0014] (1) By providing a receiving portion and utilizing interference fit to limit the magnetic gear, this connection method can generate a large preload force, so that the magnetic gear and the limiting structure are tightly combined and not prone to loosening or falling off. Compared with the traditional wedge-shaped constraint magnetic gear position, it can not only achieve the same limiting effect, but also simplify the assembly process to a certain extent, saving more production costs and processes;

[0015] (2) By providing a flange, an elastic arm structure is formed, and the elastic arm structure causes a certain amount of deformation when the receiving portion is subjected to force, thereby fixing the position of the magnetic gear without easily breaking;

[0016] (3) By providing an injection hole, the magnetic gear limiting structure can be quickly integrated into one, which greatly saves production cost and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the second flange of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the bottom surface of the shell of the utility model;

[0021] In the figure: 1. Shell; 2. Storage portion; 3. First flange; 4. Second flange; 5. Injection hole; 6. Elastic arm; 7. Claw; 8. Rotor seat; 9. Snap hole; 10. Connector frame opening. DETAILED DESCRIPTION

[0022] The following is a non-limiting detailed description of the technical solution of the present invention in conjunction with preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0023] See also Figure 1-3 The utility model provides a technical solution: a magnetic gear limiting structure of a torque angle sensor, comprising a housing 1, the housing 1 being made of plastic, a receiving portion 2 being provided on the housing 1 for mounting a magnetic gear, a first flange 3 being mounted on the inner wall of the receiving portion 2, and a second flange 4 being further mounted on the inner wall of the receiving portion 2;

[0024] An injection hole 5 is provided at the bottom of the receiving portion 2 , and an elastic arm 6 is provided on one side of the outside of the receiving portion 2 to further fix the magnetic gear.

[0025] refer to Figure 2 The storage portion 2 is a hollowed-out structure in the middle, which is used to place the magnetic gear and has the effect of statically adjusting the gear meshing clearance;

[0026] The first flange 3 and the second flange 4 are symmetrically distributed inside the receiving portion 2 , and the second flange 4 has a certain depth for contacting with the magnetic gear.

[0027] The bottom of the housing 1 is provided with an injection hole 5, which is located inside the receiving portion 2. A claw 7 is installed on the outside of the receiving portion 2 to ensure that the housing 1 is installed and matched, ensuring that it will not be displaced or fall off during operation, especially in an environment with large vibration or impact.

[0028] A rotor seat 8 is provided in the center of the housing 1 for mounting the rotor sleeve;

[0029] refer to Figure 3 The bottom of the shell 1 is equipped with symmetrical snap holes 9 to prevent rotation; a connector frame opening 10 is opened through the shell 1 to achieve the connection between the shell 1 and other mechanical components.

[0030] In this embodiment, the magnetic gear retaining structure is constructed from a circle and a secant of the circle. The housing 2 utilizes an interference fit to position the magnetic gear. The magnetic gear abuts against the first and second flanges 3 and 4 within the housing 2, ensuring the correct positioning of the magnetic gear during installation and providing a positioning mechanism. After the magnetic gear is press-fitted, the elastic arm 6 deforms slightly due to the applied force, securing the magnetic gear in place while preventing it from breaking easily. The magnetic gear retaining structure maintains a certain degree of positional retention even after the elastic arm 6 breaks.

[0031] After the magnetic gear limiter is installed in the storage part 2, the gear meshing clearance can be statically adjusted to improve transmission smoothness and enhance product precision. Furthermore, integrating the magnetic gear limiter structure into the housing 1 can greatly save costs. The housing 1 with the magnetic gear installed is clamped and connected to other mechanical structures through the claws 7, and the rotor sleeve is connected and installed through the rotor seat 8. The housing 1 is positioned through the snap hole 9 to prevent rotation. Finally, the limiter structure is connected to other mechanical structures through the connector frame 10. Compared with the conventional method of installing an elastic bracket, the complex operating procedures of the limiter structure can also be simplified.

[0032] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only used to facilitate the description of the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0033] Finally, it should be pointed out that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some of the technical features may be replaced with equivalents. Such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A magnetic gear limiting structure for a torque angle sensor, comprising a housing (1), characterized in that: A receiving portion (2) is provided on the upper portion of the housing (1), a first flange (3) is mounted on the inner wall of the receiving portion (2), and a second flange (4) is also mounted on the inner wall of the receiving portion (2); An injection hole (5) is provided at the bottom of the housing (1), and an elastic arm (6) is provided on the outer side of the receiving portion (2).

2. The magnetic gear limiting structure of a torque angle sensor according to claim 1, characterized in that: The receiving portion (2) is a cylindrical hollow structure.

3. The magnetic gear limiting structure of a torque angle sensor according to claim 1, characterized in that: The first flange (3) and the second flange (4) are symmetrically distributed inside the receiving portion (2), and the second flange (4) has a certain depth.

4. The magnetic gear limiting structure of a torque angle sensor according to claim 1, characterized in that: The injection hole (5) is located at the bottom of the receiving portion (2).

5. The magnetic gear limiting structure of a torque angle sensor according to claim 1, characterized in that: A clamping claw (7) is installed on the outer side of the receiving portion (2).

6. The magnetic gear limiting structure of a torque angle sensor according to claim 1, characterized in that: A rotor seat (8) is provided in the center of the housing (1).

7. The magnetic gear limiting structure of a torque angle sensor according to claim 1, characterized in that: Two snap holes (9) are symmetrically mounted on the bottom surface of the shell (1), and a connector frame opening (10) is provided through the shell (1).

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