CN218718213U - Composite bearing assembly and vehicle with same - Google Patents
Composite bearing assembly and vehicle with same Download PDFInfo
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- CN218718213U CN218718213U CN202223055437.4U CN202223055437U CN218718213U CN 218718213 U CN218718213 U CN 218718213U CN 202223055437 U CN202223055437 U CN 202223055437U CN 218718213 U CN218718213 U CN 218718213U
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Abstract
The utility model provides a compound bearing assembly and vehicle that has it, this compound bearing assembly includes: the bearing comprises an inner ring and an outer ring, wherein the inner ring is suitable for forming fixed connection with one end of a preset rotating shaft; a bearing elastic member fitted to each of the bearings and having a first end fixedly coupled to each of the outer rings and a second end adapted to be fixedly coupled to a predetermined support device, the bearing elastic member being configured to generate a first radial elastic force perpendicular to an axial direction of the rotating shaft; the radial magnet at the end of the rotating shaft is suitable for surrounding the rotating shaft and is fixedly connected with one end of the rotating shaft; and the support end radial magnet is suitable for being arranged on the preset support device and forms a first repulsive radial magnetic force with the rotating shaft end radial magnet, and the direction of the first radial magnetic force is the same as that of the first radial elastic force. The problem of the bearing among the prior art because of the great friction loss of vibration production is solved.
Description
Technical Field
The utility model relates to a bearing field specifically provides a compound bearing assembly and vehicle that has it.
Background
The bearing is a lightweight part in modern mechanical equipment. Its main function is to support the mechanical rotating body to reduce the mechanical load friction coefficient of the equipment in the transmission process, and its precision, performance, life and reliability play a decisive role in the precision, performance, life and reliability of the main machine. The traditional rolling bearing and sliding bearing have simple structure and high performance-price ratio and are widely applied to various machines, but because of mechanical contact, the radial force and the axial force on a rotating shaft can cause the friction force to be generated inside the bearing.
Chinese patent application publication CN114321188A discloses a low friction torque bearing set and a torque standard machine using the same. The low-friction torque bearing set comprises a bearing seat, a rotating shaft and a force application assembly, wherein an inner cavity is formed in the bearing seat, and the predetermined rotating shaft penetrates through the inner cavity and is rotationally connected with the bearing seat; the force application assembly is connected with the bearing seat and is used for applying radial force opposite to the direction of external radial force to the rotating shaft. The low friction torque bearing set reduces the radial forces experienced by the bearing and thereby reduces the friction within the bearing. However, the rolling bearing of the low friction torque bearing set is mounted on the bearing housing, and when the rotating shaft generates radial vibration, the supporting force of the rolling bearing from the bracket is rapidly increased, so that the friction force in the bearing is increased sharply, the friction loss of the bearing is increased accordingly, and the service life of the bearing is shortened after the rolling bearing is increased. In addition, when the bearing seat supporting the rotating shaft generates radial vibration, the friction force in the rolling bearing is also increased sharply.
Therefore, there is a need in the art for a new solution to the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the great problem of friction loss that the bearing produced because of the vibration among the prior art, the utility model provides a composite bearing assembly. The composite bearing assembly includes: the bearing comprises an inner ring and an outer ring, wherein the inner ring is suitable for forming fixed connection with one end of a preset rotating shaft; a bearing elastic member fitted to each of the bearings and having a first end fixedly coupled to each of the outer rings and a second end adapted to be fixedly coupled to a predetermined support device, the bearing elastic member being configured to generate a first radial elastic force perpendicular to an axial direction of the rotating shaft; the radial magnet at the end of the rotating shaft is suitable for surrounding the rotating shaft and is fixedly connected with one end of the rotating shaft; and the support end radial magnet is suitable for being arranged on a preset support device and forms a first repulsive radial magnetic force with the rotating shaft end radial magnet, and the direction of the first radial magnetic force is the same as that of the first radial elastic force.
The utility model discloses a compound bearing subassembly includes at least one bearing, and every bearing includes inner circle and outer lane, and the inner circle is suitable for and forms fixed connection with the one end of predetermined pivot. Through the configuration, the number of the bearings can be adjusted according to the radial and axial loads of the rotating shaft so as to meet a certain safety factor.
A bearing resilient member is associated with each bearing and has a first end fixedly coupled to each outer race and a second end adapted to fixedly couple to a predetermined support device to fixedly mount the outer races for rotation of the shaft relative thereto. The bearing elastic member is configured to generate a first radial elastic force perpendicular to the axial direction of the rotating shaft to provide a radial supporting force for the rotating shaft. The rotating shaft end radial magnet is suitable for surrounding the rotating shaft and is fixedly connected with one end of the rotating shaft, and the support end radial magnet is suitable for being arranged on a preset support device and forms a first repulsive radial magnetic force with the rotating shaft end radial magnet so as to provide a support force at each angle of rotation of the rotating shaft. Through the configuration, the first radial elastic force and the first radial magnetic force jointly support the rotating shaft. The main function of the bearing elastic member is to distribute the force caused by the vibration acceleration to the shaft-end radial magnet and the support-end radial magnet as much as possible. Therefore, through the matching of the bearing elastic component and the rotating shaft end radial magnet and the support end radial magnet, when the rotating shaft or the preset support device generates tiny radial displacement due to vibration, most of the force generated by vibration acceleration is distributed to the rotating shaft end radial magnet and the support end radial magnet, and the force borne by the bearing elastic component is small, so that the increment of the force borne by the bearing is correspondingly small, and further the increment of the friction force in the bearing is small. The result is reduced wear of the bearing, increased life of the bearing, and increased maximum load that the bearing can withstand.
In a preferred embodiment of the above composite bearing assembly, the composite bearing assembly further includes a limiting device, and the limiting device is adapted to form a fixed connection with the predetermined supporting device to prevent the rotating shaft from being displaced beyond a predetermined distance in the axial direction. Through stop device's setting, the ascending displacement of pivot in the axial receives the restriction, prevents that the direction of first radial elasticity from deviating from the predetermined direction for a long time, takes place irreversible deformation and influences its performance.
In a preferred embodiment of the above composite bearing assembly, the composite bearing assembly further includes a shaft end axial magnet and a support end axial magnet facing each other with a predetermined gap therebetween; the rotating shaft end axial magnet is fixedly connected with one end of the rotating shaft, and the support end axial magnet is suitable for being fixedly connected with a preset support device; the support end axial magnet and the rotating shaft end axial magnet form a repulsive second axial magnetic force so as to form a preset gap between the support end axial magnet and the rotating shaft end axial magnet. Through the configuration, when the rotating shaft generates axial displacement due to vibration, the second axial magnetic force can provide axial supporting force for the rotating shaft to resist the axial force generated by vibration acceleration, so that the axial force applied to the bearing is correspondingly reduced, the loss of the bearing is reduced, and the service life of the bearing is prolonged.
In a preferred embodiment of the above composite bearing assembly, the composite bearing assembly further includes an axial elastic member disposed at one end of the rotating shaft, one end of the axial elastic member is adapted to form a fixed connection with a predetermined supporting device, and the other end of the axial elastic member forms a fixed connection with the supporting-end axial magnet; the axial elastic member is configured to generate a second axial elastic force in the same direction as the second axial magnetic force. Through the configuration of the axial elastic component, when the rotating shaft generates axial displacement, a certain gap can be kept between the axial magnet at the supporting end and the axial magnet at the rotating shaft end all the time so as to avoid collision, and the service life of the composite bearing assembly is prolonged.
In the above-described composite bearing assembly, the maximum value of the second axial elastic force is configured to be smaller than the maximum value of the second axial magnetic force. With the above configuration, the entire compression stroke of the axial elastic member can be used to prevent collision between the support-end axial magnet and the shaft-end axial magnet.
In a preferred embodiment of the above composite bearing assembly, the shaft end radial magnet, the shaft end axial magnet, the support end radial magnet, and the support end axial magnet are configured as permanent magnets or electromagnets. The permanent magnet can reduce the production and use cost of the composite bearing assembly; the electromagnet can provide the first radial magnetic force and the second axial magnetic force which are most suitable for supporting the rotating shaft according to the change of the vibration acceleration.
In the above preferred technical solution of the composite bearing assembly, the bearing elastic member and the axial elastic member are both provided as coil springs, and the first ends of the coil springs are hinged with the outer race through a ball head. When the rotating shaft generates axial displacement or radial displacement due to vibration, the first end of the spring connected with the outer ring can avoid fatigue damage due to frequent change of the direction of the first radial elastic force through the arrangement of the ball head.
In a preferred embodiment of the above composite bearing assembly, the bearing is a rolling bearing. Through antifriction bearing's setting, be convenient for the utility model discloses a compound bearing assembly mass production to the cost is lower.
In order to solve the great problem of loss that the bearing produced because of the vibration among the prior art, the utility model also provides a vehicle, this vehicle includes above-mentioned preferred technical scheme's compound bearing assembly. Through using the utility model discloses a compound bearing subassembly, the friction loss that the vehicle produced because of the vibration reduces, and energy saving and emission reduction is and have better motion performance.
In a preferred embodiment of the above vehicle, the composite bearing assembly is formed as a motor bearing and/or a propeller shaft bearing of the vehicle. The composite bearing assembly is used as an automobile motor bearing or a transmission shaft bearing, can obviously reduce rolling friction force, reduce power consumption and reduce bearing abrasion, and has strong practicability and energy-saving and emission-reducing benefits.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
FIG. 1 is a cross-sectional view of an embodiment of the composite bearing assembly of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the composite bearing assembly of the present invention at A;
FIG. 3 is a cross-sectional view of an embodiment of the composite bearing assembly of the present invention at B;
fig. 4 is a partial schematic view of an embodiment of the composite bearing assembly of the present invention at C;
FIG. 5 is a force analysis diagram of an embodiment of the composite bearing assembly of the present invention;
fig. 6 is a force analysis diagram of another embodiment of the composite bearing assembly of the present invention.
List of reference numerals:
1. a composite bearing assembly; 10. a bearing; 11. an inner ring; 12. an outer ring; 20. a bearing elastic member; 21. a first end; 22. a second end; 30. a shaft-end radial magnet; 31. an outer wall; 32. an inner wall; 40. a support end radial magnet; 41 grooves; 50. a limiting device; 51. a connecting portion; 52. a limiting part; 521. an edge; 60. a shaft end axial magnet; 70. a support end axial magnet; 80. an axially resilient member; 2. a rotating shaft; 3. the support means are predetermined.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In order to solve the great problem of friction loss that the bearing produced because of the vibration among the prior art, the utility model provides a composite bearing assembly, this composite bearing assembly 1 includes: at least one bearing 10, each bearing comprising an inner ring 11 and an outer ring 12, the inner ring 11 being adapted to form a fixed connection with one end of a predetermined shaft 2; a bearing elastic member 20, the bearing elastic member 20 being fitted to each of the bearings 10 and having a first end 21 fixedly connected to each of the outer rings 12 and a second end 22 adapted to fixedly connected to a predetermined support device 3, the bearing elastic member 20 being configured to generate a first radial elastic force perpendicular to an axial direction of the rotation shaft 2; a rotary shaft end radial magnet 30 adapted to surround the rotary shaft 2 and form a fixed connection with one end of the rotary shaft 2; and a support end radial magnet 40 adapted to be disposed on the predetermined support device 3 and forming a repulsive first radial magnetic force with the rotation shaft end radial magnet 30, the first radial magnetic force being in the same direction as the first radial elastic force.
Fig. 1 is a cross-sectional view of an embodiment of the composite bearing assembly of the present invention. As shown in fig. 1, in one or more embodiments, the composite bearing assembly 1 is disposed at one end of a predetermined rotating shaft 2 and includes a bearing 10, a bearing elastic member 20, a rotating shaft-end radial magnet 30, and a support-end radial magnet 40. In alternative embodiments, the composite bearing assembly 1 may also be provided at both ends of a predetermined rotating shaft 2.
With continued reference to fig. 1, the bearing 10 is fixedly connected to the shaft 2. The bearing 10 includes an inner race 11 and an outer race 12 (shown in fig. 2). In one or more embodiments, the bearing 10 is a rolling bearing, such as a deep groove ball bearing, an angular contact ball bearing, a cylindrical roller bearing, or the like. The inner race 11 forms an interference fit with the shaft 2 to be mounted on the shaft 2. The number of bearings 10 may be configured as 1, or may be configured as a plurality, for example, 2 or more than 2 bearings mounted back-to-back, face-to-face, or in series. Alternatively, the bearing 10 can also be provided as a plain bearing. In the case where the bearing 10 is provided as a sliding bearing, the inner ring 11 is a journal portion of the rotating shaft 2 that contacts the bearing shell, and the outer ring 12 is the bearing shell and a bearing housing on which the bearing shell is mounted.
Fig. 2 is a cross-sectional view of an embodiment of the composite bearing assembly of the present invention at a. As shown in fig. 2, the bearing elastic member 20 has a first end 21 and a second end 22. Wherein the first end 21 forms a fixed connection with each outer ring 12 and the second end 22 forms a fixed connection with the predetermined support means 3. In one or more embodiments, the bearing elastic member 20 is disposed in a direction in which vibration of the rotating shaft 2 frequently occurs, for example, a gravity direction. Alternatively, the bearing elastic member 20 may be disposed in multiple directions, for example, around the outer ring 12, to provide multiple support forces in the radial direction. The bearing elastic member 20 is made of an elastic material that is elastically deformed by an external force, and the stress and strain thereof are in a proportional relationship. In one or more embodiments, the bearing resilient member 20 is a coil spring, and each outer race 12 is fixedly coupled to at least one coil spring. The coil spring may be directly welded to the outer race 12, or may be hinged to the outer race 12 through a ball head structure, and when the rotating shaft 2 drives the bearing 10 to displace, the bearing elastic member 20 may compensate for the linear displacement of the bearing 10 through the angular displacement of the ball head. In alternative embodiments, the bearing elastic member 20 may also be configured as a steel plate spring, an air spring, a rubber spring, or the like, to provide a supporting force for the bearing 10.
FIG. 3 is a cross-sectional view of an embodiment of the composite bearing assembly of the present invention at B; fig. 4 is a partial schematic view of an embodiment of the composite bearing assembly of the present invention at C. As shown in fig. 1 and 3, the shaft end radial magnet 30 is fixedly connected to the shaft 2. In one or more embodiments, the shaft end radial magnet 30 is annular and has an outer wall 31 coaxial with the shaft 2 and an inner wall 32 coaxial with the shaft 2 to ensure that the magnet support force can be obtained in each radial direction of the shaft 2. Alternatively, the shaft end radial magnet 30 may be configured in other suitable shapes. In one or more embodiments, the shaft end radial magnet 30 is fixedly attached to the shaft 2 by welding. Alternatively, a shrink-fitting method may be used in which the shaft-end radial magnet 30 is heated to expand the diameter of the inner wall 32 thereof and is fitted to the shaft 2. When the shaft end radial magnet 30 is restored to room temperature, the diameter of the inner wall 32 is also restored to the original size, and an interference fit effect is achieved between the shaft end radial magnet 30 and the shaft 2.
With continued reference to fig. 1 and 3, in one or more embodiments, an arcuate recess 41 is provided in the support end radial magnet 40 on the side facing the pivot end radial magnet 30 to provide a partial leftward or rightward support force while providing an upward support force. Alternatively, the support end radial magnet 40 may be configured in other suitable shapes, such as surrounding the outer wall 31, to provide support at every angle during rotation of the shaft 2. The support-end radial magnet 40 forms a fixed connection with the predetermined support means 3, in a manner including, but not limited to, screwing, riveting, welding, etc. As shown in fig. 4, in one or more embodiments, the support-end radial magnet 40 has the same width in the axial direction of the shaft 2 as the shaft-end radial magnet 30. Alternatively, the support-end radial magnet 40 has a slightly wider width in the axial direction of the rotating shaft 2 than the rotating-shaft-end radial magnet 30, so as to ensure that the magnetic force does not change when the rotating shaft 2 is shifted in the axial direction.
In one or more embodiments, as shown in FIG. 3, the outer wall 31 of the shaft end radial magnet 30 and the recess 41 of the support end radial magnet 40 are configured with the same polarity, such as both N-poles, or both S-poles, to create a repulsive magnetic force between the shaft end radial magnet 30 and the support end radial magnet 40. In an alternative embodiment, as shown in fig. 4, the poles of both the shaft-end radial magnet 30 and the support-end radial magnet 40 change in the axial direction from the S pole to the N pole (or from the N pole to the S pole), again enabling the formation of a repulsive magnetic force.
FIG. 5 is a force analysis diagram of an embodiment of the composite bearing assembly of the present invention; fig. 6 is a force analysis diagram of another embodiment of the composite bearing assembly of the present invention.
The principle of the composite bearing assembly of the present invention for reducing the frictional losses caused by radial vibrations is described below in conjunction with fig. 5 and 6.
The total mass of the rotating shaft 2 is denoted as G, and the supporting force of the bearing 10 by the bearing elastic member 20 is denoted as a first radial elastic force N 1 The supporting force of the radial magnet 40 at the support end of the radial magnet 30 at the rotation shaft end is denoted as a first radial magnetic force F 1 . When the rotating shaft 2 rotates smoothly, i.e. the rotating shaft 2 does not generate radial displacement, the first radial elastic force N 1 And a first radial magnetic force F 1 Is unchanged in magnitude, the first radial elasticity N 1 And a first radial magnetic force F 1 Supporting the shaft 2 together, i.e. G = N 1 +F 1 。
As shown in fig. 5 and 6, the horizontal axis represents the magnitude of force, and the vertical axis represents the magnitude of displacement. It is assumed that the rotary shaft 2 is in an initial position configured such that the rotary shaft 2 is fitted to the predetermined support means 3 through the composite bearing assembly 1 of the present invention and is in a stationary state or a state of only making a rotational movement about its rotary shaft. The first radial elasticity N at the moment 1 And a first radial magnetic force F 1 The zeroing process (i.e. the compression displacement of the elastic member 20 when the rotating shaft 2 is at the initial position and the first radial elasticity N generated by the compression displacement 1 Are all considered to be zero; when the shaft 2 is positioned at the initial position, the first radial magnetic force F that has been generated between the shaft-end radial magnet 30 and the support-end radial magnet 40 1 Considered to be zero and the displacement that the shaft end radial magnet 30 has produced is considered to be zero) to represent the amount of force change as the displacement changes from the initial position.
When the rotation shaft 2 vibrates, i.e. the rotation shaft 2 is displaced by a length Δ L in the radial direction, due to N 1 = σ · Δ L (σ is the elastic modulus of the bearing elastic member 20), that is, the first radial spring force N 1 With a linear variation as shown in fig. 5 and 6. First radial magnetic force F 1 The relationship with Δ L can be reduced empirically to F 1 ＝C·(D-ΔL) x (C and D are constants greater than 0; x is between-2.5 and-3.0), i.e. a first radial magnetic force F 1 In a non-linear variation as shown in fig. 5 and 6. In one or more embodiments, where the shaft-end radial magnet 30 and the support-end radial magnet 40 are permanent magnets, as shown in FIG. 5, the displacement Δ L from the vibrational acceleration is such that N is 1 And F 1 Rapidly opening the gap with increasing displacement, and F 1 Much greater than N 1 . In an alternative embodiment, as shown in FIG. 6, the shaft-end radial magnet 30 and/or the support-end radial magnet 40 are electromagnets that can control the magnitude of the magnetic force by adjusting the magnitude of the current (affecting C and x as described above) based on the displacement or acceleration caused by the vibration measured by the sensor, such that G ≈ F 1 That is, under ideal conditions, no matter whether the rotating shaft 2 vibrates or not, the electromagnet can provide nearly all supporting force for the rotating shaft 2, and the first radial elastic force N 1 The magnitude of (d) and its amount of variation are negligible. With the above configuration, the amount of change in the force of the composite bearing assembly 1 due to resistance to vibration largely comes from the first radial magnetic force F 1 So that the bearing 10 is subjected to a first radial spring force N 1 Is small and thus the increase in friction inside the bearing 10 is small. The net result is reduced wear on the bearing 10, a longer useful life of the bearing 10, and a greater maximum load that the bearing 10 can withstand.
With continued reference to fig. 1, in one or more embodiments, composite bearing assembly 1 further includes a limiting device 50. The limiting means 50 is adapted to be arranged at one end of the shaft 2 and to the left of the illustrated orientation of the bearing 10. Alternatively, the limiting means 50 may be arranged on the right side of the illustrated orientation of the bearing 10, or on both sides of the bearing 10. In one or more embodiments, the limiting device 50 is configured as a plate-shaped member extending from the predetermined supporting device 3 in the radial direction of the rotating shaft 2, and has a connecting portion 51 adapted to form a fixed connection with the predetermined supporting device 3 and a limiting portion 52 for limiting the axial displacement of the composite bearing assembly 1. In one or more embodiments, the distance between the edge 521 of the position-limiting portion 52 relative to the predetermined supporting device 3 and the axis of the rotating shaft 2 is configured to be smaller than the radius of the outer ring 12, so that when the rotating shaft 2 is displaced in the axial direction, the position-limiting portion 52 can abut against the bearing 10 to provide a supporting force for the bearing 10. Alternatively, the limiting means 50 may be configured in other suitable shapes for limiting the axial displacement of the shaft 2.
With continued reference to FIG. 1, in one or more embodiments, a composite bearing assembly1 further includes a rotary shaft end axial magnet 60 and a support end axial magnet 70. In one or more embodiments, the shaft end axial magnet 60 is a cylindrical magnet block and extends along the axis of the shaft 2. Alternatively, the shaft end axial magnet 60 may be provided in other suitable shapes. The shaft end axial magnet 60 can form a repulsive second axial magnetic force F with the support end axial magnet 70 fixedly connected to the predetermined support device 3 2 . Second axial magnetic force F 2 Is arranged in parallel with the axial direction, and when the shaft 2 generates axial vibration, the second axial magnetic force F 2 The axial supporting force can be provided for the rotating shaft to resist the axial force generated by the vibration acceleration, and further, the axial force applied to the bearing 10 by the limiting part 51 when the limiting device 50 is inserted is reduced, so that the friction force and the friction loss in the bearing 10 are reduced. Alternatively, the composite bearing assembly 1 may also be provided without the shaft end axial magnet 60 and the support end axial magnet 70.
With continued reference to fig. 1, in one or more embodiments, composite bearing assembly 1 further includes an axial resilient member 80. The two ends of the axial elastic member 80 are respectively fixedly connected with the support end axial magnet 70 and the predetermined support device 3, and can provide a second axial elastic force N for the support end axial magnet 70 2 . Second axial spring force N 2 Is arranged to be smaller than the second axial magnetic force F 2 And N is 2 Is arranged in such a direction as to interact with a second axial magnetic force F 2 The same is true. When the shaft 2 is displaced in the axial direction by vibration, the displacement can be converted into a compressive displacement of the axial elastic member 80 to ensure that the shaft-end axial magnet 60 and the support-end axial magnet 70 do not collide with each other, i.e., a certain gap is always maintained. The axially resilient member 80 is made of a resilient material. In one or more embodiments, the axially resilient member 80 is a coil spring. Alternatively, the bearing elastic member 20 may also be configured as an air spring, a rubber spring, or the like. With the above configuration, the composite bearing assembly 1 can significantly reduce friction loss caused by axial vibration.
In one or more embodiments, the rotating shaft 2 is a shaft whose axis is perpendicular to the direction of gravity, and includes, but is not limited to, a transmission shaft of a vehicle and a rotating shaft of a horizontal motor, a steam turbine, a fan, a water pump, and other mechanical equipment. Alternatively, the rotating shaft 2 may be a shaft whose axis is parallel to the direction of gravity, such as a rotating shaft of a vertical motor, a fan, a water turbine, or other mechanical equipment.
The predetermined support means 3 includes, but is not limited to, the chassis of an automobile, the body of an automobile, the ground, and the housing of an electric motor, a water turbine, a steam turbine, etc.
It should be noted that the above embodiment details the force variation of the components and the fit relationship between each other when the rotating shaft 2 vibrates with respect to the predetermined supporting device 3. It is obvious that the variations in force and the fitting relationship between the respective parts explained in the above embodiments are also applicable when the predetermined supporting device 3 is vibrated with respect to the rotating shaft 2.
The utility model also provides a vehicle with compound bearing assembly 1, this vehicle can be any suitable electric motor car. The composite bearing assembly 1 constitutes a motor bearing and/or a propeller shaft bearing of a vehicle.
So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.
Claims (10)
1. A composite bearing assembly, characterized in that the composite bearing assembly comprises:
the bearing comprises an inner ring and an outer ring, wherein the inner ring is suitable for forming a fixed connection with one end of a preset rotating shaft;
a bearing elastic member fitted to each of the bearings and having a first end fixedly coupled to each of the outer rings and a second end adapted to be fixedly coupled to a predetermined support device, the bearing elastic member being configured to generate a first radial elastic force perpendicular to an axial direction of the predetermined rotation shaft;
a shaft end radial magnet adapted to surround the predetermined shaft and form a fixed connection with the one end of the predetermined shaft; and
and the support end radial magnet is suitable for being arranged on the preset support device and forms a first repulsive radial magnetic force with the preset rotating shaft end radial magnet, and the direction of the first radial magnetic force is the same as that of the first radial elastic force.
2. The composite bearing assembly of claim 1, further comprising a stop means adapted to form a fixed connection with the predetermined support means to prevent axial displacement of the predetermined rotational axis beyond a predetermined distance.
3. The composite bearing assembly of claim 1, further comprising a shaft end axial magnet and a support end axial magnet opposing each other and separated by a predetermined gap;
the rotating shaft end axial magnet is fixedly connected with one end of the preset rotating shaft, and the support end axial magnet is suitable for being fixedly connected with the preset support device;
the support end axial magnet and the rotation shaft end axial magnet form a repulsive second axial magnetic force to form a predetermined gap between the support end axial magnet and the rotation shaft end axial magnet.
4. The composite bearing assembly of claim 3, further comprising an axial resilient member disposed at the one end of the predetermined shaft, one end of the axial resilient member being adapted to form a fixed connection with the predetermined support means and the other end thereof forming a fixed connection with the support-end axial magnet;
the axial elastic member is configured to generate a second axial elastic force in the same direction as the second axial magnetic force.
5. The composite bearing assembly of claim 4, wherein a maximum value of the second axial spring force is configured to be less than a maximum value of the second axial magnetic force.
6. The composite bearing assembly of claim 3, wherein the shaft end radial magnet, the shaft end axial magnet, the support end radial magnet, and the support end axial magnet are configured as permanent magnets or electromagnets.
7. The composite bearing assembly of claim 4, wherein the bearing resilient member and the axial resilient member are both provided as coil springs, and the first ends of the coil springs are formed with the outer races by ball joints.
8. The composite bearing assembly of any of claims 1-7, wherein the bearing is a rolling bearing.
9. A vehicle, characterized in that the vehicle comprises a composite bearing assembly according to any of claims 1-8.
10. The vehicle of claim 9, characterized in that the composite bearing assembly is formed as a motor bearing and/or a propeller shaft bearing of the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223055437.4U CN218718213U (en) | 2022-11-17 | 2022-11-17 | Composite bearing assembly and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223055437.4U CN218718213U (en) | 2022-11-17 | 2022-11-17 | Composite bearing assembly and vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218718213U true CN218718213U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223055437.4U Active CN218718213U (en) | 2022-11-17 | 2022-11-17 | Composite bearing assembly and vehicle with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218718213U (en) |
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2022
- 2022-11-17 CN CN202223055437.4U patent/CN218718213U/en active Active
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