A friction clutch electric gate operator mechanism

By using a friction clutch structure with the friction sleeve and support integrally formed, the problems of existing actuators being unable to be manually operated in emergency situations and experiencing wear are solved, achieving the effects of quiet operation and extended service life.

CN224591989UActive Publication Date: 2026-08-04NINGBO HUAKAI ELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO HUAKAI ELECTRONICS TECH CO LTD
Filing Date
2025-08-13
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing electronic actuators cannot be manually operated in emergency situations or may cause damage to the gear transmission device when they jam at the end of the actuator. Furthermore, the existing ratchet structure suffers from severe wear, affecting its service life.

Method used

The friction clutch structure adopts an integrally formed friction sleeve and support part. It transmits power through the friction sleeve and output component within the limit torque range, and slips when the limit torque is exceeded to avoid hard wear. Combined with the oil reservoir, it reduces wear.

Benefits of technology

It improves assembly efficiency, reduces production costs, extends actuator life, achieves a silent operation, and provides manual operation capability in emergency situations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of friction clutch electric small door actuator mechanism, comprising: motor, input member for receiving the input torque of motor, output member with coaxial cooperation of input member, and friction sleeve tightly fitted on output member, the friction sleeve is used to transmit input torque to output member, and with output member in the limit torque range of pre-set and constitute transmission;Friction sleeve outer still is equipped with support part, and the friction sleeve is driven by support part and input member;The friction sleeve and support part integrally form, and with input member and form transmission cooperation.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a friction clutch electric sluice gate actuator mechanism. Background Technology

[0002] Currently, electronic actuators used in the market are applied to vehicle components that can be manually operated by the user, such as electric gates. These actuators typically include a motor and a gear transmission connected to the motor, as well as the actuator's end effector.

[0003] Existing gear transmission devices typically include multiple gears to ensure torque at the end of the actuator. However, existing gear transmission devices lack a clutch mechanism. In some emergency situations, users cannot operate manually, or the motor continues to output power when the actuator is stuck, leading to damage to the gear transmission device.

[0004] Another type of small door actuator in the prior art uses a ratchet structure and a spring between two axially inserted gears and shaft components. The spring keeps the ratchet structure meshed, and in an emergency, the ratchet structure can slip under the action of external force or locking force to achieve the clutch function.

[0005] The aforementioned clutch structure has many assembly parts, and the installation of the spring requires a high-precision hole diameter. In emergency situations, the ratchet structure that slips against each other experiences significant wear, affecting the long-term use of the actuator. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a friction clutch electric door actuator mechanism.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a friction clutch electric door actuator mechanism, comprising: The motor, an input component for receiving the input torque of the motor, an output component coaxially engaged with the input component, and a friction sleeve tightly fitted on the output component, wherein the friction sleeve is used to transmit the input torque to the output component and to form a transmission with the output component within a preset limit torque range; The friction sleeve is also provided with a support part, and the friction sleeve and the input component are connected through the support part to form a transmission; the friction sleeve and the support part are integrally formed and are connected with the input component to form a transmission cooperation.

[0008] Furthermore, the friction sleeve is integrally injection molded onto the support portion and forms a transmission engagement with the input component; or, the friction sleeve is integrally injection molded onto the support portion, and the support portion and input component are integrally formed. Through the above improvements, the assembly error of the separate support portion and friction sleeve is eliminated, ensuring the concentricity and transmission synchronization of the friction sleeve and support portion; and the injection molding process allows for mass production. In addition, integrally molding the support portion, friction sleeve, and input component further optimizes the assembly operation.

[0009] Furthermore, the friction sleeve and the support portion are arranged radially between the input component and the output component. The support portion provides a radial component, and the support portion uses radial force to make the friction sleeve uniformly press against the output component, so that the friction sleeve is tightly fitted to the output component.

[0010] Furthermore, a concave-convex fit structure is provided between the supporting part and the opposite surface of the friction sleeve.

[0011] Furthermore, the end of the support part is provided with a connecting surface, which is located between the friction sleeve and the support part. The friction sleeve compensates for the connecting surface and is formed on the support part. During injection molding, the material filling the connecting surface can automatically compensate for the machining tolerance, reduce the precision requirements of the mating surface, and enhance the bonding force.

[0012] Furthermore, the support portion and the friction sleeve are fixedly disposed relative to the input component, and the support portion and the input component, or the support portion and the friction sleeve, are fixed and synchronously transmitted through a form fit.

[0013] Furthermore, the friction sleeve is provided with a mating convex surface that is opposite to the output component, and the mating convex surface is interference-fitted with the outer wall of the output component.

[0014] Furthermore, an oil reservoir is provided between the mating surfaces of the friction sleeve and the input component, and the oil reservoir extends on the mating surfaces.

[0015] Furthermore, the input component includes a first tooth and a mounting recess. The first tooth receives torque from the motor. The support portion and the friction sleeve are arranged in the mounting recess. The mounting recess is provided with a first limiting portion corresponding to one end of the friction sleeve. The output component is provided with a second limiting portion corresponding to the other end of the friction sleeve. The first limiting portion and the second limiting portion together constrain the axial displacement of the friction sleeve to prevent the friction sleeve from dislodging during vibration.

[0016] Furthermore, the output component is coaxially inserted into the input component and forms a gear transmission stage within the actuator mechanism. The output component includes a cylindrical surface disposed opposite to the friction sleeve and a second tooth for outputting torque.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects: This utility model reduces the number of parts and improves the assembly effect by integrally molding the friction sleeve onto the support part. The integral molding of the friction sleeve onto the support part or input component is achieved through the embedding process, which reduces the processing accuracy requirements and assembly complexity, thereby significantly reducing production costs. In addition, thanks to the embedding process, the adverse effects of dimensional deviations can be reduced for support parts and friction sleeves made of different materials. A friction sleeve is configured between the input and output components. By slipping through a preset limit torque, the hard wear of the gear transmission device during jamming or manual operation is avoided, and it is converted into a surface contact friction buffer, which extends the life of the actuator. Furthermore, an oil reservoir is installed inside the friction sleeve to reduce wear on the friction surface after long-term use, as well as wear caused by friction slippage. During maintenance, there is no need to disassemble the complex mechanism; simply adding oil is sufficient to restore performance.

[0018] The radially arranged support parts and friction sleeves have high space utilization and occupy axial space compactly, making them suitable for narrow vehicle installation environments. At the same time, the concave-convex mating structure enhances transmission stability.

[0019] In addition, during the slipping clutch operation, the sliding friction of the friction sleeve can still provide the user with a certain feel, and there is no abnormal noise from the hard collision of the uneven structure, thus achieving a silent effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of this utility model from another angle; Figure 4 This is a top view of the internal structure of this utility model; Figure 5 This is a schematic diagram of the structure of the input and output components of this utility model; Figure 6 This is a cross-sectional view of the support part and the friction sleeve integrally formed in this utility model; Figure 7 This is an exploded view of the support part and the friction sleeve integrally formed in this utility model; Figure 8 Another exploded view of the support part and friction sleeve integrally formed in this utility model; Figure 9 This is a cross-sectional view of the support portion of this utility model integrally formed on the input component; Figure 10This is an exploded view of the support portion of this utility model integrally formed on the input component; Figure 11 Another exploded view of the support portion of this utility model being integrally formed on the input component; In the picture: 1. Electric motor; 2. Input components; 2.1. First toothed part; 2.2. Assembly recess; 2.2.1. Through hole; 2.3. First limiting part; 2.4. Stepped part; 3. Output components; 3.1. Second limiting part; 3.2. Cylindrical surface; 3.3. Second toothed part; 3.4. Snap ring; 3.5. Shaft part; 4. Friction sleeve; 4.1. Mating convex surface; 4.2. Oil reservoir; 4.3. Radial convex part; 4.4. Compensation part; 5. Supporting parts; 5.1. Connecting surfaces; 6. Concave-convex mating structure; 6.1. Groove; 6.2. Protruding post; 7. Non-circular transmission profile; 8. Output final stage; 9. Transmission gear; 10. Worm gear assembly; 11. Double gear set; 12. Circuit board; 13. Potentiometer; Detailed Implementation

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

[0022] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0023] like Figures 1 to 6 ,as well as Figure 9 As shown, a friction clutch electric gantry actuator mechanism includes: The motor 1, the output final stage 8 driven by the motor 1, and the torque transmission structure disposed between the motor 1 and the output final stage 8, the torque transmission structure including at least one transmission gear 9, the transmission gear 9 including an input member 2 that receives the input torque of the motor 1, and an output member 3 disposed with the input member 2, the output member 3 being connected to the output final stage 8; It also includes a friction sleeve 4, which is mounted on the output component 3 of the transmission gear 9 and is tightly fitted with the output component 3. The friction sleeve 4 is used to transmit the input torque to the output component 3 and forms a transmission with the output component 3 within a preset limit torque range. When the transmission torque exceeds the limit torque range, slippage occurs between the friction sleeve 4 and the output component 3. A fixed transmission fit is established between the friction sleeve 4 and the input component 2.

[0024] The friction sleeve 4 is also provided with a support part 5. The support part 5 is specifically set between the friction sleeve 4 and the input component 2 so that the friction sleeve 4 and the input component 2 can form a transmission through the support part 5. One of the main purposes of this utility model is to improve the convenience and reliability of the installation of the friction sleeve 4 by integrally forming the friction sleeve 4 and the support part 5 and forming a transmission cooperation with the input component 2.

[0025] Furthermore, in order to generate sliding friction with the input component 2 under extreme conditions, the friction sleeve 4 is preferably made of plastic, while the support part 5, as the main rotating part between the friction sleeve 4 and the input component 2, is preferably made of metal to ensure the reliability of the structure and transmission relationship. The support part 5 is selected to be annular, and the friction sleeve 4 is integrally formed on the support part 5 to facilitate the assembly of the friction sleeve 4.

[0026] It is worth mentioning that the friction sleeve 4 has a moderate elastic modulus, which on the one hand provides the conditions for slippage between the friction sleeve 4 and the input component 2, and on the other hand, the friction sleeve 4 and the metal support part 5 are integrally formed, which reduces the influence of deformation and dimensional deviation between the friction sleeve 4 and the support part 5 made of different materials, reduces the torque transmission fluctuation caused by the cumulative tolerance of multiple transmission components, and in some cases, by setting the metal support part 5 on the outside of the friction sleeve 4, it also plays a protective role for the friction sleeve 4 and improves the dynamic working condition adaptability of the friction sleeve 4.

[0027] In most cases, the actuating force exceeding the limit torque mainly comes from the user's manual external force. For example, in the event of a power failure, the user needs to manually open the electric door. At this time, due to the preset limit torque of the friction sleeve 4, the electric door can be opened manually. In other cases, this 9-stage transmission gear setting also allows the user to actuate the electric door during the opening or closing process, such as manually closing or opening it. Of course, it also allows the user to stop the electric door when it is opening or closing, keeping it in its current position. Correspondingly, in other cases, when the electric door is stalled, the electric door can also slip under the friction of the friction sleeve 4, thereby preventing damage to the electric door.

[0028] As a further embodiment of the cooperation between input component 2 and output component 3, input component 2 is a large gear, which includes a first tooth portion 2.1 and a mounting recess 2.2. The first tooth portion 2.1 receives torque from motor 1. Output component 3 is a small gear with a shaft portion 3.5. The shaft portion 3.5 is provided with a cylindrical surface 3.2 that is opposite to the friction sleeve 4. The small gear is provided with a second tooth portion 3.3 for outputting torque. The shaft portion 3.5 of output component 3 is inserted into the mounting recess 2.2. Output component 3 is coaxially inserted into input component 2. The two are connected by a support portion 5 and friction sleeve 4 to form a transmission, and form a gear transmission stage in the actuator mechanism, specifically in the form of a double gear.

[0029] The friction sleeve 4 is inserted into the mounting recess 2.2 and sleeved on the shaft 3.5 of the output component 3. The outer side of the friction sleeve 4 rotates synchronously with the output component 3, while the inner side of the friction sleeve 4 is in a pre-tensioned state under normal conditions to achieve synchronous rotation with the shaft 3.5 of the input component 2. Under the action of external force, after the friction sleeve 4 bears a torque greater than its preset limit, the shaft 3.5 of the output component 3 and the friction sleeve 4 form friction slip in the form of sliding friction. During this process, the friction slip does not produce "clicking" noise, realizing silent frictional engagement and disengagement between the input component 2 and the output component 3.

[0030] Specifically, the support portion 5 and the friction sleeve 4 are fixedly disposed relative to the input component 2, and the support portion 5 and the input component 2, or the support portion 5 and the friction sleeve 4, are fixed and synchronously transmitted through a form fit. This form fit is preferably a non-circular contour, specifically a polygonal contour, to achieve a reliable transmission effect. Of course, it can also be other contours that serve to prevent rotation. The friction sleeve 4 and the support portion 5 are arranged radially between the input component 2 and the output component 3. The support portion 5 provides a radial component so that the friction sleeve 4 is tightly fitted to the output component 3. In addition, the interference fit of the friction sleeve 4 can be adjusted by adjusting the wall thickness of the support portion 5, thereby fine-tuning the limit torque of the friction sleeve 4.

[0031] Alternatively, the pinion of the output component 3 can be the output end of the actuator or one of the gear stages in the torque transmission path of the actuator.

[0032] Alternatively, the input component 2 may be directly fixed to the output shaft of the motor 1, or the input component 2 may be indirectly connected to the output shaft of the motor 1 via a transmission connection, or a reduction gear stage may be provided between the input component 2 and the output shaft of the motor 1. This reduction gear stage is preferably a worm gear assembly 10, to provide sufficient self-locking force so that the motor 1 shaft will not be driven to rotate when the electric door is actuated by external force.

[0033] like Figures 5 to 8 As shown, as one configuration of the friction sleeve 4, the support part 5 is an independent annular component. The friction sleeve 4 is integrally injection molded on the support part 5, so that the friction sleeve 4 and the support part 5 together constitute a transmission unit between the input component 2 and the output component 3. During assembly, it is only necessary to place the integral transmission unit between the input component 2 and the output component 3.

[0034] In this embodiment, the support part 5 is an annular part and surrounds the outer peripheral wall of the friction sleeve 4. Of course, the support part 5 can also be provided with an extension edge in the radial direction to further hold the friction sleeve 4.

[0035] Therefore, a rounded corner is provided on one end of the support part 5, and a relatively expanded open end is provided on the opening side of the assembly recess 2.2 to optimize the assembly operation of the support part 5 and the friction sleeve 4.

[0036] Specifically, to improve the connection stability between the friction sleeve 4 and the support part 5, a concave-convex fitting structure 6 is provided between the support part 5 and the friction sleeve 4. The concave-convex fitting structure 6 specifically refers to a groove provided on the support part 5 and a protrusion provided on the friction sleeve 4. Its purpose is to increase the fitting parts between the two to ensure the reliability of the fit between them. Of course, the positions of the concave and convex parts between the support part 5 and the friction sleeve 4 can also be interchanged. As an example, a hole is provided on the outer wall of the support part 5, and a corresponding protrusion 6.2 is provided on the outer wall of the friction sleeve 4. Of course, the concave-convex fitting structure 6 can also be set to other shapes.

[0037] In this embodiment, the support part 5 is used as an independent ring-shaped component. Preferably, the outer and inner walls of the support part 5 are set as polygonal non-circular transmission contours 7, and the inner wall of the mounting recess 2.2 is adapted to the outer contour of the support part 5. The outer wall of the friction sleeve 4 is adapted to the inner contour of the support part 5, thereby ensuring the transmission stability among the support part 5, the friction sleeve 4 and the input component 2.

[0038] like Figures 9 to 11 As shown, as another way of setting the friction sleeve 4, the support part 5 is integrally set on the input component 2, specifically located on the inner wall of the assembly recess 2.2. The friction sleeve 4 is integrally injection molded on the support part 5 of the input component 2. In this embodiment, the support part 5 and the input component 2 are preferably metal parts of the same material. Through the above improvements, the support part 5, the friction sleeve 4 and the input component 2 constitute an integral transmission unit, which further improves the convenience of assembly and reduces the number of parts.

[0039] In this embodiment, the support part 5 is annular and integrally formed in the assembly recess 2.2. The support part 5 extends downward from the upper end of the assembly recess 2.2. The lower end of the support part 5 and the opening end of the assembly recess 2.2 are pre-set with a gap, which is used for the friction sleeve 4 to be injection molded on the support part 5 to ensure the area and tightness of the connection between the two.

[0040] In addition, the distance between the lower end of the support part 5 and the lower end of the input component 2 defines the step part 2.4. The friction sleeve 4 is injection molded and covers the step part 2.4. The outer contour of the friction sleeve 4, the step surface, and the inner wall of the support part 5 are all adapted polygonal non-circular transmission contours 7, thereby ensuring the stability of the transmission fit between the friction sleeve 4 and the input component 2.

[0041] Specifically, in the embodiment where the support part 5 is integrally formed into the input component 2, a concave-convex mating structure 6 is also provided between the support part 5 and the friction sleeve 4. The only difference is that the groove is provided on the support part 5. In addition, thanks to the integral forming of the support part 5 and the input component 2, the groove is provided with an extension space on the wall surface of the input component 2, so as to further increase the mating area of ​​the protrusion on the friction sleeve 4 in the groove and improve the reliability of the matching between the friction sleeve 4 and the input component 2.

[0042] like Figure 6 and Figure 9 As shown, in the above embodiments, the friction sleeves 4 are all formed on the support portion 5. The end of the support portion 5 is provided with a connecting surface 5.1. The connecting surface 5.1 is located between the friction sleeve 4 and the support portion 5. The friction sleeve 4 compensates for the connecting surface 5.1. The connecting surface 5.1 specifically refers to the rounded corner provided at the end of the support portion 5. The rounded corner is located on the inner wall of the support portion 5 facing the friction sleeve 4, thereby providing a forming area for the friction sleeve 4 in the radial and axial directions, increasing the injection molding area. The connecting surface 5.1 makes the friction sleeve 4 form a stop on the opening side of the assembly recess 2.2, effectively reducing the axial movement of the support portion 5 and the friction sleeve 4.

[0043] like Figure 6 As shown, in the embodiment where the support part 5 is an independent component, the connecting surface 5.1 further improves the integrity of the friction sleeve 4 and the support part 5.

[0044] like Figure 9 As shown, in the embodiment where the support part 5 is integrally formed in the input component 2, the connecting surface 5.1 is arranged at the end of the support part 5 corresponding to the opening of the mounting recess 2.2, specifically on the step part 2.4. After the friction sleeve 4 compensates for the connecting surface 5.1, an integral plane is formed at the opening of the mounting recess 2.2 for the axial limiting part to cooperate.

[0045] Further reference Figure 6 and Figure 9 As shown, in a further embodiment of the engagement of the input component 2, output component 3, friction sleeve 4, and fastener, the support portion 5 and the friction sleeve 4 are arranged within the mounting recess 2.2. The mounting recess 2.2 is provided with a first limiting portion 2.3 corresponding to one end of the friction sleeve 4, and the output component 3 is provided with a second limiting portion 3.1 corresponding to the other end of the friction sleeve 4. Both the first limiting portion 2.3 and the second limiting portion 3.1 extend radially. The first limiting portion 2.3 is located on the side of the mounting recess 2.2 away from its opening, and the second limiting portion 3.1 is located on the side of the mounting recess 2.2 away from its opening. .2 Corresponding to the side of the opening, through the above improvements, the friction sleeve 4 is axially limited between the first limiting part 2.3 and the second limiting part 3.1. Furthermore, the shaft part 3.5 of the output member 3 extends out of the mounting recess 2.2 of the input member 2. A retaining spring 3.4 is provided on the shaft part 3.5. The retaining spring 3.4 is arranged on the side away from the opening of the mounting recess 2.2, thereby limiting the axial position between the input member 2 and the output member 3, so that the second limiting part 3.1 abuts against the end face of the friction sleeve 4, ensuring the reliability of the position of the friction sleeve 4 in the mounting recess 2.2.

[0046] The second limiting part 3.1 extends below the connecting surface 5.1, so that in the assembled state, the second limiting part 3.1 can apply force to the bottom of the friction sleeve 4, so that the compensation part 4.4 of the friction sleeve 4 is supported by the connecting surface 5.1 of the support part 5.

[0047] like Figure 7 and Figures 10 to 11 As shown, as a further embodiment of the cooperation between the friction sleeve 4 and the output component 3, specifically, the friction sleeve 4 is provided with a mating convex surface 4.1 that is disposed opposite to the output component 3, and the mating convex surface 4.1 is interference-fitted with the outer wall of the output component 3.

[0048] The mating convex surface 4.1 is specifically provided on the inner wall of the friction sleeve 4, and is tightly clamped to the outer wall of the shaft portion 3.5 of the output component 3. The mating convex portion specifically includes a plurality of radial convex portions 4.3 spaced apart. The radial convex portions 4.3 are clamped to the outer surface of the output component 3. The radial convex portions 4.3 extend axially in the friction sleeve 4 and are spaced apart in the circumferential direction. The radial convex portions 4.3 are fitted with the shaft portion 3.5 of the output shaft in an interference fit posture. Under normal conditions, the radial convex portions 4.3 undergo local deformation due to the interference fit, thereby clamping the shaft portion 3.5 of the output component 3 and rotating synchronously with the output component 3. After bearing the ultimate torque, the radial convex portions 4.3 further deform to achieve sliding friction with the output component 3, thereby disengaging the transmission. After the ultimate torque is eliminated, the radial convex portions 4.3 return to the local deformation under normal conditions and are again in an interference fit with the output component 3.

[0049] Specifically, an oil reservoir 4.2 is provided between the mating surfaces of the friction sleeve 4 and the input component 2. The oil reservoir 4.2 extends on the mating surfaces. The oil reservoir 4.2 can be formed between the radial protrusions 4.3, or it can be set on the mating protrusion 4.1 independently of the interval between the radial protrusions 4.3. Its purpose is to contain grease. When slippage occurs between the friction sleeve 4 and the output component 3, the grease can reduce the wear between the mating surfaces of the friction sleeve 4 and the output component 3 and prevent the fit between the two from loosening.

[0050] Furthermore, the input gear has a through-hole for the shaft portion 3.5 of the output member 3 to extend out, the through-hole connecting to the mounting recess 2.2, and in the axial direction, the oil reservoir 4.2 is exposed in the radial space between the through-hole and the input member 2 to facilitate the later addition of grease.

[0051] Further reference Figures 1 to 4 The output component 3 is fixedly connected to the final output stage 8 of the actuator, that is, the output component 3 and the final output stage 8 are coaxial, or a transmission gear 9 is provided between the output component 3 and the final output stage 8. The transmission gear 9 is preferably a coaxial gear shaft. The transmission gear 9 meshes with the output component 3, and the gear shaft is pivotally connected to the electric small door through a spline.

[0052] Specifically, a worm gear assembly 10 and a double gear set 11 are provided between the motor 1 and the input component 2. The output end of the motor 1 is connected to the worm of the worm gear assembly 10. The worm gear meshes with the lower end of the double gear set 11, and the upper end of the double gear set 11 meshes with the input component 2. The self-locking force of the worm gear is greater than the limit torque of the friction sleeve 4, so as to prevent the rotation of the input component 2 when the electric door is actuated by external force.

[0053] Specifically, it also includes a circuit board 12 installed inside the actuator, a coaxial drive shaft end is provided on the output final stage 8, and a potentiometer 13 is provided on the circuit board 12 corresponding to the shaft end. The potentiometer 13 is used to provide feedback on the position signal of the output final stage 8. When an obstacle is encountered, the stall current of the motor 1 is collected and the reverse motion is executed to realize the anti-pinch function.

[0054] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A friction clutch electric gantry actuator mechanism, characterized in that, include: The motor (1), the input component (2) for receiving the input torque of the motor (1), the output component (3) coaxially cooperating with the input component (2), and the friction sleeve (4) tightly fitted on the output component (3), wherein the friction sleeve (4) is used to transmit the input torque to the output component (3) and form a transmission with the output component (3) within a preset limit torque range; The friction sleeve (4) is also provided with a support part (5), and the friction sleeve (4) and the input component (2) are connected by the support part (5) to form a transmission; the friction sleeve (4) and the support part (5) are integrally formed and are connected by the input component (2) to form a transmission cooperation.

2. The friction clutch electric door actuator mechanism according to claim 1, characterized in that: The friction sleeve (4) is integrally injection molded on the support part (5) and forms a transmission cooperation with the input component (2); or, the friction sleeve (4) is integrally injection molded on the support part (5), and the support part (5) and the input component (2) are integrally formed.

3. The friction clutch electric gantry actuator mechanism according to claim 1, characterized in that: The friction sleeve (4) and the support portion (5) are arranged radially between the input member (2) and the output member (3), and the support portion (5) provides a radial component so that the friction sleeve (4) fits tightly against the output member (3).

4. The friction clutch electric gantry actuator mechanism according to claim 1, characterized in that: The support part (5) and the friction sleeve (4) are provided with a concave-convex fit structure (6).

5. The friction clutch electric gantry actuator mechanism according to claim 1, characterized in that: The end of the support part (5) is provided with a connecting surface (5.1), which is located between the friction sleeve (4) and the support part (5). The friction sleeve (4) compensates for the connecting surface (5.1) and is formed on the support part (5).

6. The friction clutch electric sluice gate actuator mechanism according to claim 1, characterized in that: The support part (5) and the friction sleeve (4) are fixedly arranged relative to the input component (2), and the support part (5) and the input component (2), or the support part (5) and the friction sleeve (4) are fixed and synchronously transmitted through shape fit.

7. The friction clutch electric sluice gate actuator mechanism according to claim 1, characterized in that: The friction sleeve (4) is provided with a mating convex surface (4.1) that is opposite to the output component (3), and the mating convex surface (4.1) is interference-fitted with the outer wall of the output component (3).

8. The friction clutch electric gantry actuator mechanism according to claim 1, characterized in that: An oil reservoir (4.2) is provided between the relative mating surfaces of the friction sleeve (4) and the input component (2), and the oil reservoir (4.2) extends on the relative mating surfaces.

9. The friction clutch electric door actuator mechanism according to claim 1, characterized in that: The input component (2) includes a first tooth (2.1) and a mounting recess (2.2). The first tooth (2.1) receives torque from the motor (1). The support portion (5) and the friction sleeve (4) are arranged in the mounting recess (2.2). The mounting recess (2.2) is provided with a first limiting portion (2.3) corresponding to one end of the friction sleeve (4). The output component (3) is provided with a second limiting portion (3.1) corresponding to the other end of the friction sleeve (4).

10. The friction clutch electric sluice gate actuator mechanism according to claim 1, characterized in that: The output component (3) is coaxially inserted into the input component (2) and forms a gear transmission stage in the actuator mechanism. The output component (3) includes a cylindrical surface (3.2) disposed opposite to the friction sleeve (4) and a second tooth (3.3) for outputting torque.