Planetary clutch device

Abstract

A planetary clutch device, used for converting different transmission ratios for a servo motor, and comprising a clutch spring (1), a sun clutch member (2), a ring gear clutch member (3), a planetary gear (4), and a planet carrier (5) for mounting the planetary gear (4). The clutch spring (1) abuts against a left end surface of the sun clutch member (2), a right end surface of the sun clutch member (2) is detachably fitted with the ring gear clutch member (3), the ring gear clutch member (3) comprises an inner ring gear, and the planetary gear (4) is meshed with the inner ring gear. When the clutch spring (1) is subjected to force and enters an engaged state, the sun clutch member (2) is disengaged from the ring gear clutch member (3), and the sun clutch member (2) is engaged with the planetary gear (4), thereby achieving transmission ratio conversion.

Description

A planetary clutch device Technical Field

[0001] This invention relates to the field of servo motor technology, specifically to a planetary clutch device. Background Technology

[0002] Traditional servos mainly consist of a housing, circuit board, drive motor, reduction gear, and position detection element. Their working principle is as follows: a receiver sends a signal to the servo, which is then driven by an IC on the circuit board to start the coreless motor. The power is transmitted to the output shaft through the reduction gear, and simultaneously, a position detector on the output shaft sends back a signal to determine whether the desired position has been reached. The position detector is a variable resistor or a rotating magnetic encoder; the voltage value changes as the servo rotates, and therefore the angle of rotation can be determined based on the detected voltage value.

[0003] The shapes and types of servos on the market are very diverse, but the main functional modules inside servos are basically the same. Their main components and functions are as follows: The servo controller is the actuator of the entire control system. It contains a central controller, data memory, drive module, etc. The motherboard of the central controller is a microcontroller, which can be manually programmed to complete directional control.

[0004] The shape of commonly used servos cannot be changed at will, but they are required to have fast response speed and high output torque. Current servos are difficult to meet these requirements at the same time. Summary of the Invention

[0005] The purpose of this invention is to provide a planetary clutch device that can be applied to servo motors, enabling the servo motor to respond quickly and output large torque while keeping the servo motor's shape unchanged, thereby solving at least one of the technical problems mentioned in the background art.

[0006] To solve the above technical problems,

[0007] This invention provides a planetary clutch device for switching different transmission ratios of a servo motor. It includes a clutch spring, a sun clutch, a ring gear clutch, planetary gears, and a planetary carrier for mounting the planetary gears. The clutch spring abuts against the left end face of the sun clutch, and the right end face of the sun clutch is separably engaged with the ring gear clutch. The ring gear clutch includes an internal gear ring, and the planetary gears mesh with the internal gear ring. When the clutch spring is stressed and enters the clutch state, the sun clutch disengages from the ring gear clutch, while simultaneously engaging with the planetary gears, thereby achieving transmission ratio switching.

[0008] Optionally, the solar clutch and the ring clutch are connected by planar teeth.

[0009] Optionally, the solar clutch and the ring gear clutch are connected by a wear-resistant disc.

[0010] Optionally, the solar clutch and the ring gear clutch are connected by a magnet.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] (1) This invention integrates the clutch and planetary structure into one unit, and uses dynamics to increase the torque to trigger the clutch, thereby realizing the transmission ratio conversion and satisfying the function of being both fast and powerful.

[0013] (2) This invention utilizes a planetary clutch to achieve the conversion of two gear ratios, enabling fast start-up speed. When the load increases, the servo clutch is triggered, allowing the planetary gear set to immediately engage in transmission, thereby increasing the gear ratio and thus increasing the torque. Torque conversion can be achieved without the need for electronic control to assist in gear shifting. Attached Figure Description

[0014] To more clearly illustrate the technical solution of the present invention, the embodiments will be described below in conjunction with the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0015] Figure 1 is a simplified structural diagram of the planetary clutch device of the present invention;

[0016] Figure 2 is a simplified diagram of energy transfer between the planetary clutch device and the motor of the present invention. Detailed Implementation

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please refer to Figure 1. The present invention provides a planetary clutch device for switching different transmission ratios of a servo motor, including a clutch spring 1, a sun clutch 2, a ring gear clutch 3, planetary gears 4, and a planet carrier 5 for mounting the planetary gears 4.

[0019] The clutch spring 1 abuts against the left end face of the sun clutch 2, and the right end face of the sun clutch 2 can be separably engaged with the ring gear clutch 3.

[0020] It should be further noted that the solar clutch and the ring gear clutch are connected by planar teeth, wear-resistant discs, or magnets.

[0021] The ring gear clutch 3 includes an internal gear ring, and the planetary gear 4 meshes with the internal gear ring.

[0022] Referring to Figure 2, the ring gear clutch 3 of the planetary clutch device is connected to the motor gear 71 of the motor 7 via the first gear 6; the sun gear 2 meshes with the second gear 8 to input the load force T. ln Before the clutch engages, the sun clutch 2 meshes with the second gear 8, and the ring gear clutch 3 engages with the sun clutch 2. The ring gear clutch 3 is then connected to the motor gear 71 via the first gear 6, thereby generating the first transmission ratio output. When the servo motor stalls, the axial force causes the clutch spring 1 to engage, disengaging the sun clutch 2 from the ring gear clutch 3. Simultaneously, the sun clutch 2 engages with the planetary gear 4, which in turn meshes with the ring gear clutch 3. The ring gear clutch 3 is then connected to the motor gear 71 via the first gear 6, thus generating the second transmission ratio output, completing the transmission ratio conversion, and enabling the entire gear set to achieve a greater torque output.

[0023] In summary, when the clutch spring 1 is subjected to the input load force and the motor output torque resistance, the maximum output torque T is reached. out At that time, the clutch spring torque T at point A C Less than T G When the load increases, the planetary module engages, thus triggering the servo clutch to immediately engage the planetary gear set, increasing the gear ratio and thus increasing torque. Torque conversion can be achieved without electronic control to assist in gear shifting.

[0024] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0025] Furthermore, it should be noted that the scope of the methods and systems in the embodiments of the present invention is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0026] The embodiments of the present invention have been described above. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A planetary clutch device for converting different transmission ratios of a steering engine, characterized by, The clutch includes a clutch spring, a sun clutch, a ring gear clutch, planetary gears, and a planetary carrier for mounting the planetary gears. The clutch spring abuts against the left end face of the sun clutch, and the right end face of the sun clutch is separably engaged with the ring gear clutch. The ring gear clutch includes an internal gear ring, and the planetary gears mesh with the internal gear ring. When the clutch spring is stressed and enters the clutch state, the sun clutch disengages from the ring gear clutch, and simultaneously engages with the planetary gears, thereby achieving a transmission ratio conversion.

2. The planetary clutch device of claim 1, wherein The solar clutch and the ring clutch are connected by planar teeth.

3. The planetary clutch device of claim 1, wherein The solar clutch and the ring gear clutch are connected by a wear-resistant disc.

4. The planetary clutch device of claim 1, wherein The solar clutch and the ring gear clutch are connected by a magnet.

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