Face gear transmission steering engine with compact structure

Abstract

The utility model discloses a face gear transmission steering engine with a compact structure, which belongs to the technical field of remote control robots and comprises a steering engine and a face gear transmission device mounted in the steering engine. The face gear transmission device comprises a driving motor, a motor gear installed at the output shaft end of the driving motor, a face gear in meshing transmission with the motor gear, and a parallel transmission assembly arranged on the side, away from the motor gear, of the face gear and meshed with the face gear. The idle gear and the parallel transmission assembly are installed on the same transmission shaft, and the rotating direction of the face gear is perpendicular to the rotating direction of the motor teeth so that transverse output of the driving motor can be converted into vertical output. The output torque of the face gear and the output torque of the parallel transmission assembly are transmitted to the idle gear through the transmission shaft. The steering engine is simple in structure, high in efficiency and capable of improving transmission stability and transmission efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of remote control robots, and in particular relates to a face gear transmission servo with a compact structure. Background Art

[0002] In the current development of building block toys, small remote-controlled educational robots have become hot-selling products. However, for some small toy robots, slow movements and large torque are required, which requires a servo with a large transmission ratio, while the servo is required to be relatively small.

[0003] However, the existing servos generally have the problem of small reduction ratio and large size. In addition, the unique technological holes of the building blocks make the external dimensions even larger. In addition, most of the servos on the market currently use bevel gear transmission, which has some performance defects such as high installation position requirements, difficult assembly, high processing costs, and high noise.

[0004] Therefore, it is urgent to propose a compact face gear transmission servo to solve the above technical problems. Utility Model Content

[0005] The utility model discloses a face gear transmission servo with a compact structure. By combining face gears and spur gears, the transmission stability and efficiency are improved, the installation position accuracy requirement is lowered, and the processing cost is reduced, thereby effectively solving at least one technical problem involved in the background technology.

[0006] To achieve the above purpose, the technical solution of the utility model is:

[0007] A compact face gear transmission servo, comprising a servo and a face gear transmission device installed in the servo, wherein the face gear transmission device comprises a drive motor, motor teeth installed at the output shaft end of the drive motor, a face gear meshing with the motor teeth for transmission, a parallel transmission assembly arranged on a side of the face gear away from the motor teeth and meshing with the face gear, and an idler wheel installed on the same transmission shaft as the parallel transmission assembly and rotating with the transmission shaft, wherein the rotation direction of the face gear is perpendicular to the rotation direction of the motor teeth and is used to convert the lateral output of the drive motor into a vertical output, and the output torque of the face gear and the parallel transmission assembly is transmitted to the idler wheel via the transmission shaft.

[0008] As a preferred improvement of the utility model, a steering wheel is also installed on the transmission shaft, and the idler wheel is connected to an angle sensor, and the angle of the transmission shaft is controlled by the angle sensor to change the angle of the steering wheel.

[0009] As a preferred improvement of the utility model, the face gear transmission servo also includes a magnet and a Hall sensor, the magnet is connected to the drive motor through a magnet connector, and the Hall sensor is installed at the bottom of the drive motor for reading the rotation speed of the drive motor.

[0010] As a preferred improvement of the utility model, a gear box is provided in the steering gear, and the face gear, the parallel transmission assembly and the idler gear are installed in the gear box.

[0011] As a preferred improvement of the present invention, the idler wheel is located above the parallel transmission assembly, and the steering wheel is located above the idler wheel and exposed on the top surface of the steering gear.

[0012] As a preferred improvement of the present invention, the number of the idler wheels is 3, and the 3 idler wheels mesh and rotate in a horizontal direction.

[0013] As a preferred improvement of the present invention, the motor teeth are spur involute cylindrical gears.

[0014] Beneficial effects of the utility model:

[0015] 1. Compared with bevel gears, the overlap of face gear transmission is increased, which improves the transmission stability and efficiency;

[0016] 2. Face gears are insensitive to axial manufacturing errors. Compared with bevel gear transmission, the installation position accuracy requirements are lower, which reduces processing costs and improves transmission stability;

[0017] 3. The face gear transmission plus parallel transmission method makes processing more convenient and transmission efficiency higher;

[0018] 4. The meshing transmission of face gear and cylindrical gear ensures smooth transmission and low noise at different instantaneous transmissions, and can ensure that the virtual position of the overall transmission system is small, thus improving the transmission accuracy of the servo.

[0019] 5. The use of idler wheels ensures the output angle accuracy and forms a closed loop for the entire transmission system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0021] Figure 1 This is one of the structural schematic diagrams of a compact face gear transmission servo of the utility model;

[0022] Figure 2 This is the second structural schematic diagram of a compact face gear transmission servo of the utility model;

[0023] Figure 3 This is the third structural schematic diagram of a compact face gear transmission servo of the utility model;

[0024] Figure 4 It is a cross-sectional view of a compact face gear transmission servo of the utility model;

[0025] Figure 5 The utility model is a structural explosion diagram of a compact face gear transmission servo.

[0026] In the figure: 1. Servo; 2. Drive motor; 3. Motor teeth; 4. Face gear; 5. Parallel drive assembly; 6. Drive shaft; 7. Idle gear; 8. Steering wheel; 9. Magnet; 10. Hall sensor; 11. Magnet connector; 12. Angle sensor; 13. Gearbox upper shell; 14. Gearbox middle shell; 15. Gearbox lower shell. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] See also Figures 1 to 5 As shown, the present application provides a compact face gear transmission servo, comprising a servo 1 and a face gear transmission device installed in the servo 1, wherein the face gear transmission device comprises a drive motor 2, motor teeth 3, a face gear 4, a parallel transmission assembly 5, a transmission shaft 6, an idler gear 7 and a steering wheel 8.

[0033] The drive motor 2 is fixedly arranged on the gear box in the servo 1, the motor teeth 3 are installed on the output shaft end of the drive motor 2, the face gear 4 is meshed with the motor teeth 3 for transmission, the parallel transmission assembly 5 is arranged on the side of the face gear 4 away from the motor teeth 3, and is meshed with the face gear 4 for transmission, the parallel transmission assembly 5 is installed on the transmission shaft 6, the rotation direction of the face gear 4 is perpendicular to the rotation direction of the motor teeth 3, and is used to convert the lateral output of the drive motor 2 into a vertical output.

[0034] The face gear transmission servo further comprises a magnet 9 and a Hall sensor 10 . The magnet 9 is connected to the drive motor 2 via a magnet connector 11 . The Hall sensor 10 is mounted at the bottom of the drive motor 2 to read the rotation speed of the drive motor 2 .

[0035] Among them, the motor tooth 3 is a spur involute cylindrical gear, and when it is meshed with the face gear 4, the transmission is smooth and the noise is low; the combination of the motor tooth 3 and the face gear 4 ensures that the virtual position of the overall transmission system is small, and improves the transmission accuracy of the servo.

[0036] The transmission shaft 6 is also provided with three idler wheels 7 meshingly connected in the horizontal direction. The output torque of the face gear 4 and the parallel transmission assembly 5 is transmitted to the idler wheels 7 through the transmission shaft 6, and the rotation speed of the transmission shaft 6 is converted into the rotation speed of the idler wheels 7 through the transmission between the idler wheels 7.

[0037] The steering wheel 8 is mounted on the transmission shaft 6. Preferably, the idler wheel 7 is located above the parallel transmission assembly 5. The steering wheel 8 is located above the idler wheel 7 and exposed on the top surface of the servo 1 for connecting other components. The idler wheel 7 is connected to an angle sensor 12, through which the angle of the transmission shaft 6 can be controlled, thereby controlling the angle of the steering wheel 8 to achieve precise positioning and meet the angle position requirements of the robot.

[0038] Specifically, the gearbox includes a gearbox upper shell 13, a gearbox middle shell 14 and a gearbox lower shell 15, one end of the transmission shaft 6 is fixed on the gearbox lower shell 15, the parallel transmission assembly 5 is located between the gearbox middle shell 14 and the gearbox lower shell 15, the idler wheel 7 and the steering wheel 8 are located between the gearbox upper shell 13 and the gearbox middle shell 14, and the other end of the transmission shaft 6 passes through the gearbox middle shell 14 and is connected to the idler wheel 7 and the steering wheel 8.

[0039] Beneficial effects of the utility model:

[0040] 1. Compared with bevel gears, the overlap of face gear transmission is increased, which improves the transmission stability and efficiency;

[0041] 2. Face gears are insensitive to axial manufacturing errors. Compared with bevel gear transmission, the installation position accuracy requirements are lower, which reduces processing costs and improves transmission stability;

[0042] 3. The face gear transmission plus parallel transmission method makes processing more convenient and transmission efficiency higher;

[0043] 4. The meshing transmission of face gear and cylindrical gear ensures smooth transmission and low noise at different instantaneous transmissions, and can ensure that the virtual position of the overall transmission system is small, thus improving the transmission accuracy of the servo.

[0044] 5. The use of idler wheels ensures the output angle accuracy and forms a closed loop for the entire transmission system.

[0045] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and the implementation scheme. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A compact face gear transmission servo, characterized in that: It includes a servo and a face gear transmission device installed in the servo, the face gear transmission device includes a drive motor, motor teeth installed at the output shaft end of the drive motor, a face gear meshing with the motor teeth for transmission, a parallel transmission assembly arranged on a side of the face gear away from the motor teeth and meshing with the face gear, and an idler wheel installed on the same transmission shaft as the parallel transmission assembly and rotating with the transmission shaft, the rotation direction of the face gear is perpendicular to the rotation direction of the motor teeth, and is used to convert the lateral output of the drive motor into a vertical output, and the output torque of the face gear and the parallel transmission assembly is transmitted to the idler wheel through the transmission shaft.

2. A compact face gear transmission servo according to claim 1, characterized in that: A steering wheel is also installed on the transmission shaft, and the idler wheel is connected to an angle sensor. The angle of the transmission shaft is controlled by the angle sensor to change the angle of the steering wheel.

3. A compact face gear transmission servo according to claim 1, characterized in that: The face gear transmission servo also includes a magnet and a Hall sensor. The magnet is connected to the drive motor through a magnet connector. The Hall sensor is installed at the bottom of the drive motor and is used to read the rotation speed of the drive motor.

4. A compact face gear transmission servo according to claim 1, characterized in that: A gear box is arranged in the steering gear, and the face gear, the parallel transmission assembly and the idler gear are installed in the gear box.

5. A compact face gear transmission servo according to claim 2, characterized in that: The idler wheel is located above the parallel transmission assembly, and the steering disc is located above the idler wheel and exposed on the top surface of the steering gear.

6. A compact face gear transmission servo according to claim 1, characterized in that: The number of the idler wheels is 3, and the 3 idler wheels mesh and rotate in a horizontal direction.

7. A compact face gear transmission servo according to claim 1, characterized in that: The motor gears are spur involute cylindrical gears.

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