Integrated passive electromagnetic damping friction device, apparatus and vehicle

By designing an integrated passive electromagnetic damping friction device, the friction and damping elements are integrated into one device, solving the problem of increased size and weight in existing technologies and enabling timely fault detection.

CN115566871BActive Publication Date: 2026-05-19COMMERCIAL AIRCRAFT CORP OF CHINA LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
COMMERCIAL AIRCRAFT CORP OF CHINA LTD
Filing Date
2022-09-09
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In the existing technology, the independent arrangement of dampers and friction devices increases unnecessary volume and weight, and the failure of either one cannot be detected immediately.

Method used

An integrated passive electromagnetic damping friction device was designed, which integrates the components of the friction device and the damper into one device. Through the integration of rotating and fixed components, the device utilizes components such as magnetic sheets and metal rings to achieve the transmission of damping and frictional torque.

Benefits of technology

It achieves a compact layout of dampers and friction devices, reducing size and weight, while enabling timely fault detection and avoiding problems that go unnoticed when a single failure occurs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the application discloses an integrated passive electromagnetic damping friction device, equipment and carrier, which comprises a rotating assembly, a fixed assembly, a cavity in the fixed assembly, the rotating assembly being arranged in the cavity, a friction device first element, the friction device first element being connected with the rotating assembly or the fixed assembly, a friction device second element, the friction device second element being arranged on the fixed assembly or the rotating assembly opposite to the friction device first element, a damper first element, the damper first element being connected with the rotating assembly or the fixed assembly, and a damper second element, the damper second element being arranged on the fixed assembly or the rotating assembly opposite to the damper first element. The friction device and the damper are integrated in one device, both of which operate simultaneously, and the situation that one of them fails and cannot be detected does not occur, the layout after integration is more compact, the volume is smaller, and the weight is reduced.
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Description

Technical Field

[0001] This application relates to the field of aircraft component technology, and in particular to an integrated passive electromagnetic damping friction device, equipment, and carrier. Background Technology

[0002] Civil aircraft rudder and brake pedal assemblies typically employ dampers and friction devices to provide damping and frictional forces. A damper is a mechanical or hydraulic device that uses damping characteristics to absorb or suppress impulses, thereby reducing mechanical vibrations and dissipating kinetic energy. It is commonly used in suspension and steering systems. A friction device, also called a friction brake, is a mechanical component used to stop or slow down moving parts in a machine. It utilizes the frictional resistance generated by the interaction of two moving surfaces to convert the kinetic and potential energy of the moving equipment into heat energy, thereby reducing the operating speed of the equipment.

[0003] In civil aircraft, dampers are used to reduce oscillations and overshoot of the rudder brake pedal assembly during free-centering, while friction devices ensure that the pedals remain in their current position under the influence of gravity even if the dampers and force-sensing springs fail. However, in existing technology, dampers and friction devices are installed independently. Therefore, when one of the dampers or friction devices fails, the crew cannot immediately detect the fault. Furthermore, the independent arrangement of dampers and friction devices increases the number of gear transmission stages, adding unnecessary size and weight.

[0004] In view of this, it is necessary to develop an integrated passive electromagnetic damping friction device, equipment, and carrier to solve the above problems. Summary of the Invention

[0005] The embodiments of this application provide an integrated passive electromagnetic damping friction device, equipment, and carrier to solve the technical problem that the separate arrangement of the damper and friction device in the prior art increases unnecessary volume and weight, and that the failure of either one cannot be immediately detected.

[0006] To address the aforementioned technical problems, embodiments of this application disclose the following technical solutions:

[0007] Firstly, an integrated passive electromagnetic damping friction device is provided, comprising:

[0008] Rotating components;

[0009] The fixing component includes a cavity, and the rotating component is rotatably disposed within the cavity; the cavity is provided with:

[0010] A first friction element, wherein the first friction element is connected to the rotating assembly or the stationary assembly;

[0011] A second friction element, the second friction element being disposed on the fixed assembly or the rotating assembly opposite to the first friction element;

[0012] A first damper element, wherein the first damper element is connected to the rotating assembly or the fixed assembly;

[0013] A second damper element, which is disposed on the fixed assembly or the rotating assembly opposite to the first damper element.

[0014] In conjunction with the first aspect, the rotating assembly includes:

[0015] Rotor, wherein the rotor is provided with a rotor bearing housing;

[0016] A transmission gear, which is fixedly connected to the rotor;

[0017] The rotor has a base plate and a frame, the frame is arranged around the base plate, the base plate has an upper surface and a lower surface that are opposite to each other, the second friction element is fixedly connected to the lower surface, and the first damper element is fixedly connected to the inner wall of the frame.

[0018] In conjunction with the first aspect, the fixing component includes:

[0019] Cover plate;

[0020] The housing, after being fixedly connected to the cover plate, forms the cavity; the housing is fixedly connected to the rotor bearing seat.

[0021] An inner housing, which is fixedly fitted inside the housing;

[0022] The cover plate has a first surface and a second surface that are opposite to each other. The first surface faces the cavity. The first element of the friction device is fixedly connected to the first surface, and the second element of the damper is fixedly connected to the outer wall of the inner shell.

[0023] In conjunction with the first aspect, the rotating assembly includes:

[0024] Rotor, wherein the rotor is provided with a rotor bearing housing;

[0025] A transmission gear, which is fixedly connected to the rotor;

[0026] The rotor has a base plate and a frame, the frame is arranged around the base plate, the first friction element is fixedly connected to the outer wall of the frame, and the first damper element is fixedly connected to the inner wall of the frame.

[0027] In conjunction with the first aspect, the fixing component includes:

[0028] Cover plate;

[0029] The housing, after being fixedly connected to the cover plate, forms the cavity; the housing is fixedly connected to the rotor bearing seat.

[0030] An inner housing, which is fixedly fitted inside the housing;

[0031] The second element of the friction device is fixedly connected to the inner wall of the housing, and the second element of the damper is fixedly connected to the outer wall of the inner housing.

[0032] In conjunction with the first aspect, the rotating assembly includes:

[0033] Rotor, wherein the rotor is provided with a rotor bearing housing;

[0034] A transmission gear, which is fixedly connected to the rotor;

[0035] The rotor has a base plate and a frame, the frame is arranged around the base plate, the first friction element is fixedly disposed on the inner wall of the frame, and the first damping element is fixedly disposed on the outer wall of the frame.

[0036] In conjunction with the first aspect, the fixing component includes:

[0037] Cover plate;

[0038] The housing, after being fixedly connected to the cover plate, forms the cavity; the housing is fixedly connected to the rotor bearing seat.

[0039] An inner housing, which is fixedly fitted inside the housing;

[0040] The second element of the friction device is fixedly connected to the outer wall of the inner housing, and the second element of the damper is fixedly connected to the inner wall of the housing.

[0041] In conjunction with the first aspect, the fixing component includes:

[0042] Rotor, wherein the rotor is provided with a rotor bearing housing;

[0043] The rotor has a base plate and a frame, the frame is arranged around the base plate, the base plate has an upper surface and a lower surface that are opposite to each other, the first damper element is fixedly connected to the outer wall of the frame, and the second friction element is fixedly connected to the lower surface.

[0044] In conjunction with the first aspect, the rotating assembly includes:

[0045] Cover plate;

[0046] The housing, which is fixedly connected to the cover plate, forms the cavity.

[0047] A transmission gear, which is fixedly connected to the housing;

[0048] An inner housing, which is fixedly fitted inside the housing;

[0049] The cover plate has a first surface and a second surface that are opposite to each other. The first surface faces the cavity. The first element of the friction device is fixedly connected to the first surface, and the second element of the damper is fixedly connected to the inner wall of the housing.

[0050] In conjunction with the first aspect, the first element of the damper and the second element of the damper include a magnetic sheet and a metal ring.

[0051] In conjunction with the first aspect, both the first element and the second element of the friction device are friction plates, and the first element and the second element of the friction device are in contact with each other.

[0052] In conjunction with the first aspect, the first element of the friction device and the second element of the friction device include a magnetic plate and a magnetic disk.

[0053] In a second aspect, a device is provided, the device being provided with an integrated passive electromagnetic damping friction device as described in the first aspect.

[0054] Thirdly, a vehicle is provided, which is provided with an integrated passive electromagnetic damping friction device as described in the first aspect, or with a device as described in the second aspect.

[0055] One of the above technical solutions has the following advantages or beneficial effects:

[0056] Compared with the prior art, the integrated passive electromagnetic damping friction device of this application includes: a rotating assembly; a fixed assembly, the fixed assembly having a cavity inside, the rotating assembly being rotatably disposed in the cavity; the cavity having: a first friction element connected to the rotating assembly or the fixed assembly; a second friction element disposed on the fixed assembly or the rotating assembly opposite to the first friction element; a first damper element connected to the rotating assembly or the fixed assembly; and a second damper element disposed on the fixed assembly or the rotating assembly opposite to the first damper element. In this application, the first and second friction elements, as well as the first and second damper elements, are respectively disposed on the rotating assembly and the fixed assembly, and the rotating assembly and the fixed assembly are integrated into one device. This allows the integrated passive electromagnetic damping friction device of this application, compared with the prior art, to have the damper and friction element operate simultaneously, preventing the situation where a fault in one of them goes undetected. Furthermore, the integrated damper and friction element have a more compact layout, smaller size, and reduced weight.

[0057] In this application, a transmission gear is fixedly mounted on the housing, and the rotor passes through the cover plate and is fixedly connected to the external equipment. After the rotor is fixed to the external equipment, it can be converted into a fixed structure. At the same time, the connection between the housing and the transmission gear can be converted into a rotating structure. By exchanging the motion effects between the rotor and the housing, the application scenarios are enriched, enabling the integrated passive electromagnetic damping friction device proposed in this application to be applied in different places. Attached Figure Description

[0058] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0059] Figure 1 This is a schematic diagram of the structure provided for an embodiment of this application;

[0060] Figure 2 This is a frontal view of the exploded structure provided in Embodiment 1 of this application;

[0061] Figure 3 This is a schematic diagram of the exploded structure in the rear view provided in Embodiment 1 of this application;

[0062] Figure 4 This is a cross-sectional structural diagram provided in Embodiment 1 of this application;

[0063] Figure 5 This is a frontal view of the exploded structure diagram provided in Embodiment 2 of this application;

[0064] Figure 6 This is a schematic diagram of the exploded structure in the rear view provided in Embodiment 2 of this application;

[0065] Figure 7 This is a frontal view of the exploded structure provided in Embodiment 3 of this application;

[0066] Figure 8 This is a schematic diagram of the exploded structure in the rear view provided in Embodiment 3 of this application;

[0067] Figure 9 This is a frontal view of the exploded structure diagram provided in Embodiment 4 of this application;

[0068] Figure 10 This is a rear-view exploded structure diagram provided in Embodiment 4 of this application.

[0069] The components in the attached diagram are labeled as follows:

[0070] 11-Cover plate; 111-First surface; 112-Second surface; 12-Housing shell; 13-Inner housing; 14-Cover plate gasket; 15-Cavity; 16-First friction element; 17-Second friction element; 18-First damper element; 19-Second damper element; 21-Transmission gear; 22-Rotor; 221-Bottom plate; 2211-Upper surface; 2212-Lower surface; 222-Frame; 23-Rotor bearing seat. Detailed Implementation

[0071] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0072] The specific implementation methods of this application are illustrated below through examples:

[0073] Example 1

[0074] Figure 1 and Figure 4An integrated passive electromagnetic damping friction device is described, comprising:

[0075] The rotating assembly and the fixing assembly include a cover plate 11, a housing 12 and an inner housing 13. The housing 12 is a hollow cylinder with an opening at one end and a bottom surface at the other end. A through hole is provided at the center of the bottom surface. The opening on the housing 12 is fixedly connected to the cover plate 11 to form a hollow cavity 15. The inner housing 13 is fitted into the cavity 15 and fixedly connected to the bottom surface of the housing 12. A transmission gear 21 is rotatably provided at the through hole of the housing 12. The transmission gear 21 passes through the housing 12 and reaches the inside of the cavity 15. The cover plate 11 includes a first surface 111 and a second surface 112. The first surface 111 faces the cavity 15 and the second surface 112 faces outward.

[0076] The rotating assembly is rotatably disposed in the cavity 15. The rotating assembly includes a rotor 22 and a rotor bearing seat 23. The rotor 22 is composed of a base plate 221 and a frame 222. The frame 222 surrounds the periphery of the base plate 221. The base plate 221 has an upper surface 2211 and a lower surface 2212. The rotor bearing seat 23 is fixedly connected to the housing 12. The rotor 22 is rotatably connected to the rotor bearing seat 23. The rotor 22 rotates relative to the housing 12. The transmission gear 21 passes through the housing 12 and is fixedly connected to the rotor 22.

[0077] The interior of cavity 15 includes:

[0078] The first element 16 of the friction device is a disk, which is fixedly disposed on the inner side of the cover plate 11, that is, the first surface 111 of the cover plate 11. A cover plate gasket 14 is fixedly disposed on the cover plate 11, and the disk is fixedly connected to the cover plate 11 through the cover plate gasket 14.

[0079] The second element 17 of the friction device is a magnetic sheet, which is fixedly disposed on the end face of the rotor 22, that is, the lower surface 2212 of the rotor 22.

[0080] The connection between the disk and the floppy disk is non-contact.

[0081] Also includes:

[0082] The first element of the damper 18 is a magnetic sheet, which is fixedly installed on the inner wall of the rotor 22, that is, the inner side of the frame 222.

[0083] The second element of the damper 19 is a metal ring, which is fixedly installed on the outer wall of the inner housing 13.

[0084] Reference Figure 2 and Figure 3When the rotor 22 is driven to rotate around the axis by the transmission gear 21, the magnetic sheet installed on the inner wall of the rotor 22 rotates and generates a rotating magnetic field. The metal ring installed on the outer wall of the inner housing 13 cuts the magnetic field lines and generates torque, which is the damping torque. The torque changes according to the rotation speed of the rotor and the number of magnetic sheets. The damping torque is transmitted to the external equipment through the transmission gear 21.

[0085] When the rotor 22 is driven to rotate around the axis by the transmission gear 21, the magnetic sheet installed on the end face of the rotor 22 rotates with the rotor and interacts with the disk installed on the inner side of the cover plate 11 to generate frictional torque. The torque changes according to the rotation speed of the rotor and the number of magnetic sheets. The frictional torque is transmitted to the external device through the transmission gear 21.

[0086] Example 2

[0087] Figure 1 An integrated passive electromagnetic damping friction device is described, comprising:

[0088] The rotating assembly and the fixing assembly include a cover plate 11, a housing 12 and an inner housing 13. The housing 12 is a hollow cylinder with an opening at one end and a bottom surface at the other end. A through hole is provided at the center of the bottom surface. The opening on the housing 12 is fixedly connected to the cover plate 11 to form a hollow cavity 15. The inner housing 13 is fitted into the cavity 15 and fixedly connected to the bottom surface of the housing 12. A transmission gear 21 is rotatably provided at the through hole of the housing 12. The transmission gear 21 passes through the housing 12 and reaches the inside of the cavity 15. The cover plate 11 includes a first surface 111 and a second surface 112. The first surface 111 faces the cavity 15 and the second surface 112 faces outward.

[0089] The rotating assembly is rotatably disposed in the cavity 15. The rotating assembly includes a rotor 22 and a rotor bearing seat 23. The rotor 22 is composed of a base plate 221 and a frame 222. The frame 222 surrounds the periphery of the base plate 221. The base plate 221 has an upper surface 2211 and a lower surface 2212. The rotor bearing seat 23 is fixedly connected to the housing 12. The rotor 22 is rotatably connected to the rotor bearing seat 23. The rotor 22 rotates relative to the housing 12. The transmission gear 21 passes through the housing 12 and is fixedly connected to the rotor 22.

[0090] The interior of cavity 15 includes:

[0091] The first element 16 of the friction device is a magnetic sheet, which is fixedly installed on the outer wall of the rotor 22, that is, the outer side of the frame 222.

[0092] The second element 17 of the friction device is a magnetic sheet, which is fixedly disposed on the inner wall of the housing 12; wherein the magnetic sheets are in contact with each other.

[0093] Also includes:

[0094] The first element of the damper 18 is a magnetic sheet, which is fixedly installed on the inner wall of the rotor 22, that is, the inner side of the frame 222.

[0095] The second element of the damper 19 is a magnetic sheet, which is fixedly installed on the outer wall of the inner housing 13.

[0096] Reference Figure 5 and Figure 6 When the rotor 22 is driven to rotate around the axis by the transmission gear 21, the magnetic sheet installed on the inner wall of the rotor 22 rotates and generates a rotating magnetic field. The magnetic sheet installed on the outer wall of the inner housing 13 cuts the magnetic field lines and generates torque, which is the damping torque. The torque changes according to the rotation speed of the rotor and the number of magnetic sheets. The damping torque is transmitted to the external equipment through the transmission gear.

[0097] When the rotor 22 is driven to rotate around the axis by the transmission gear 21, the magnetic sheet installed on the outer wall of the rotor 22 rotates with the rotor and comes into contact with the magnetic sheet installed on the inner wall of the housing 12 to generate frictional torque. The torque changes according to the rotational speed of the rotor and the number of magnetic sheets. The frictional torque is transmitted to the external equipment through the transmission gear 21.

[0098] Example 3

[0099] Figure 1 An integrated passive electromagnetic damping friction device is described, comprising:

[0100] The rotating assembly and the fixing assembly include a cover plate 11, a housing 12 and an inner housing 13. The housing 12 is a hollow cylinder with an opening at one end and a bottom surface at the other end. A through hole is provided at the center of the bottom surface. The opening on the housing 12 is fixedly connected to the cover plate 11 to form a hollow cavity 15. The inner housing 13 is fitted into the cavity 15 and fixedly connected to the bottom surface of the housing 12. A transmission gear 21 is rotatably provided at the through hole of the housing 12. The transmission gear 21 passes through the housing 12 and reaches the inside of the cavity 15. The cover plate 11 includes a first surface 111 and a second surface 112. The first surface 111 faces the cavity 15 and the second surface 112 faces outward.

[0101] The rotating assembly is rotatably disposed in the cavity 15. The rotating assembly includes a rotor 22 and a rotor bearing seat 23. The rotor 22 is composed of a base plate 221 and a frame 222. The frame 222 surrounds the periphery of the base plate 221. The base plate 221 has an upper surface 2211 and a lower surface 2212. The rotor bearing seat 23 is fixedly connected to the housing 12. The rotor 22 is rotatably connected to the rotor bearing seat 23. The rotor 22 rotates relative to the housing 12. The transmission gear 21 passes through the housing 12 and is fixedly connected to the rotor 22.

[0102] The interior of cavity 15 includes:

[0103] The first element 16 of the friction device is a magnetic sheet, which is fixedly installed on the inner wall of the rotor 22, that is, the inner side of the frame 222.

[0104] The second element 17 of the friction device is a magnetic sheet, which is fixedly mounted on the outer wall of the inner housing 13; wherein the magnetic sheets are connected in a non-contact manner.

[0105] Also includes:

[0106] The first element of the damper 18 is a magnetic sheet, which is fixedly installed on the outer wall of the rotor 22, that is, the outer side of the frame 222.

[0107] The second element of the damper 19 is a magnetic sheet, which is fixedly installed on the inner wall of the housing 12.

[0108] Reference Figure 7 and Figure 8 When the rotor 22 is driven to rotate around the axis by the transmission gear 21, the magnetic sheet installed on the outer wall of the rotor 22 rotates and generates a rotating magnetic field. The magnetic sheet installed on the inner wall of the housing 12 cuts the magnetic field lines and generates torque, which is the damping torque. The torque changes according to the rotation speed of the rotor and the number of magnetic sheets. The damping torque is transmitted to the external equipment through the transmission gear.

[0109] When the rotor 22 is driven to rotate around the axis by the transmission gear 21, the magnetic plates installed on the inner wall of the rotor 22 rotate with the rotor and interact with the magnetic plates installed on the outer wall of the inner housing 13 to generate frictional torque. The torque changes according to the rotational speed of the rotor and the number of magnetic plates. The frictional torque is transmitted to the external equipment through the transmission gear 21.

[0110] Example 4

[0111] Figure 1 An integrated passive electromagnetic damping friction device is described, comprising:

[0112] The rotating assembly and the fixed assembly include a rotor 22, which is rotatably mounted on the housing 12 via a rotor bearing seat 23. The rotor 22 passes through a cover plate 11 and is fixedly connected to an external device. The rotor 22 is composed of a base plate 221 and a frame 222, with the frame 222 surrounding the periphery of the base plate 221. The base plate 221 has an upper surface 2211 and a lower surface 2212.

[0113] The rotating assembly includes a cover plate 11, a housing 12, and an inner housing 13. The housing 12 is a hollow cylinder with an opening at one end and a bottom surface at the other end. A through hole is provided at the center of the bottom surface. The opening on the housing 12 is fixedly connected to the cover plate 11 to form a hollow cavity 15. The inner housing 13 is fitted into the cavity 15 and fixedly connected to the bottom surface of the housing 12. A transmission gear 21 is fixedly provided at the through hole of the housing 12. The cover plate 11 includes a first surface 111 and a second surface 112. The first surface 111 faces the cavity 15, and the second surface 112 faces outward.

[0114] The first element 16 of the friction device is a magnetic sheet, which is fixedly disposed on the inner side of the cover plate 11. A cover plate gasket 14 is fixedly disposed on the cover plate 11, and the disk is fixedly connected to the cover plate 11 through the cover plate gasket 14.

[0115] The second element 17 of the friction device is a magnetic disk, which is fixedly mounted on the end face of the rotor 22, that is, the upper surface 2211 of the rotor 22; wherein the magnetic plates are connected in a non-contact manner.

[0116] Also includes:

[0117] The first element of the damper 18 is a magnetic sheet, which is fixedly installed on the outer wall of the rotor 22, that is, the outer side of the frame 222.

[0118] The second element of the damper 19 is a magnetic sheet, which is fixedly installed on the inner wall of the housing 12.

[0119] Reference Figure 9 and Figure 10 The housing 12 is driven by the transmission gear 21, while the rotor 22 cannot rotate because it is fixedly connected to the external equipment. Therefore, when the transmission gear 21 is driven, the housing 12 is driven to rotate around the axis. The magnetic plates installed on the inner wall of the housing 12 follow the rotation and generate a rotating magnetic field. The magnetic plates installed on the outer wall of the rotor 22 cut the magnetic field lines and generate torque, which is the damping torque. The torque changes according to the rotation speed of the housing 12 and the number of magnetic plates. The damping torque is transmitted to the external equipment through the transmission gear.

[0120] When the transmission gear 21 is driven, the housing 12 is driven to rotate around the axis. The disk mounted on the inner side of the cover plate 11 rotates with the housing 12 and interacts with the magnetic sheet mounted on the end face of the rotor 22 to generate frictional torque. The torque varies according to the rotation speed of the housing 12 and the number of magnetic sheets. The frictional torque is transmitted to the external device through the transmission gear 21.

[0121] A vehicle is provided with an integrated passive electromagnetic damping friction device as described in Examples 1 to 4, wherein the vehicle includes vehicles, ships, aircraft, etc.

[0122] The above provides a detailed description of an integrated passive electromagnetic damping friction device provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An integrated passive electromagnetic damping friction device, characterized in that, include: A rotating assembly, comprising a transmission gear (21), a rotor (22) and a rotor bearing housing (23), wherein the rotor (22) is rotatably connected to the rotor bearing housing (23) and the transmission gear (21) is fixedly connected to the rotor (22); A fixing assembly includes a cover plate (11), a housing (12), and an inner housing (13). The housing (12) is fixedly connected to the cover plate (11) to form a cavity (15). The housing (12) is fixedly connected to the rotor bearing seat (23). The inner housing (13) is fixedly sleeved inside the housing (12). The rotating assembly is rotatably disposed in the cavity (15). The cavity (15) is provided with: Friction first element (16), the friction first element (16) is connected to the rotating assembly or the fixed assembly; A second friction element (17) is disposed on the fixed assembly or the rotating assembly opposite to the first friction element (16); Both the first element (16) and the second element (17) of the friction device are friction plates, and the first element (16) and the second element (17) of the friction device are in contact to generate friction torque; A first damper element (18) is connected to the rotating assembly or the fixed assembly; A second damper element (19) is disposed on the fixed assembly or the rotating assembly opposite to the first damper element (18); The first element (18) and the second element (19) of the damper include a magnetic sheet and a metal ring, which interact to generate a damping torque.

2. The integrated passive electromagnetic damping friction device as described in claim 1, characterized in that, The rotor (22) has a base plate (221) and a frame (222), the frame (222) being arranged around the base plate (221), the base plate (221) having an upper surface (2211) and a lower surface (2212) facing away from each other, the second friction element (17) being fixedly connected to the lower surface (2212), and the first damper element (18) being fixedly connected to the inner wall of the frame (222).

3. The integrated passive electromagnetic damping friction device as described in claim 2, characterized in that, The cover plate (11) has a first surface (111) and a second surface (112) facing away from each other. The first surface (111) faces the cavity (15). The first element (16) of the friction device is fixedly connected to the first surface (111), and the second element (19) of the damper is fixedly connected to the outer wall of the inner shell (13).

4. The integrated passive electromagnetic damping friction device as described in claim 1, characterized in that, The rotor (22) has a base plate (221) and a frame (222), the frame (222) being arranged around the base plate (221), the first friction element (16) being fixedly connected to the outer wall of the frame (222), and the first damper element (18) being fixedly connected to the inner wall of the frame (222).

5. The integrated passive electromagnetic damping friction device as described in claim 4, characterized in that, The second element (17) of the friction device is fixedly connected to the inner wall of the housing (12), and the second element (19) of the damper is fixedly connected to the outer wall of the inner housing (13).

6. The integrated passive electromagnetic damping friction device as described in claim 1, characterized in that, The rotor (22) has a base plate (221) and a frame (222), the frame (222) is arranged around the base plate (221), the first friction element (16) is fixedly disposed on the inner wall of the frame (222), and the first damper element (18) is fixedly disposed on the outer wall of the frame (222).

7. The integrated passive electromagnetic damping friction device as described in claim 6, characterized in that, The second element (17) of the friction device is fixedly connected to the outer wall of the inner housing (13), and the second element (19) of the damper is fixedly connected to the inner wall of the housing (12).

8. A vehicle, characterized in that, The vehicle is equipped with an integrated passive electromagnetic damping friction device as described in any one of claims 1 to 7.