An intermediate drive shaft assembly with magnetic levitation and its assembly method

Abstract

This invention relates to the field of drive shaft assemblies, specifically to an intermediate drive shaft assembly with magnetic levitation and its assembly method. The assembly includes a drive shaft with a support structure; the support structure includes a support cover; a support body is provided inside the support cover; the support body includes an inner support body and an outer support body; the outer support body is sleeved on the inner support body; and a magnetic levitation support mechanism is provided between the inner and outer support bodies. This invention, by using a magnetic levitation support mechanism instead of a bearing mechanism in the transmission, can reduce frictional losses during the operation of the intermediate drive shaft; simultaneously, it can reduce the operating noise of the intermediate drive shaft and improve the transmission efficiency of the drive shaft.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of transmission shaft assembly, in particular to a kind of intermediate transmission shaft assembly with magnetic levitation and its assembling method. BACKGROUND

[0002] With in traditional automobile four-wheel drive system, the middle part of intermediate transmission shaft is usually supported by ordinary ball bearing and shock pad.

[0003] This design can meet the basic use requirements to some extent, but under high-speed operation (≥2500rmp), high-temperature working condition (close to exhaust pipe, maximum temperature 140℃), low-temperature weather (outdoor temperature-50℃ in northern winter) and complex road conditions, ordinary bearing is prone to cause wear and tear and noise due to contact friction and lubrication problems.

[0004] For example, the patent 202311349964.2-disclosed a bearing frame structure of transmission shaft and its transmission shaft assembly.

[0005] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the design of the bearing structure on the existing transmission shaft. SUMMARY

[0006] The purpose of the present application is to provide a kind of transmission shaft assembly with magnetic levitation support.

[0007] In order to achieve the above purpose, the technical scheme adopted by the present application is:

[0008] A kind of intermediate transmission shaft assembly with magnetic levitation, including transmission shaft, the transmission shaft is equipped with support structure;

[0009] The support structure includes support cover;Support body is arranged in the support cover;The support body includes inner support body and outer support body;

[0010] The outer support body is sleeved on the inner support body;

[0011] Magnetic levitation support mechanism is arranged between the inner support body and the outer support body.

[0012] The magnetic levitation support mechanism includes inner magnetic group arranged on the inner support body and outer magnetic group arranged on the outer support body;The inner magnetic group and the outer magnetic group are spaced apart and opposite;

[0013] The inner support body includes inner support ring, and the outer support body includes outer support ring;The outer support ring and the inner support ring are coaxially arranged;One lateral cover body is respectively arranged on the opposite ends of the outer support ring;The lateral cover body and the end of the inner support ring are spaced apart.

[0014] The inner magnetic group comprises side magnetic components arranged on the inner support ring and end magnetic components arranged on the end face of the inner support ring.

[0015] The outer magnetic group comprises outer magnetic components arranged on the outer support ring and inner magnetic components arranged on the lateral cover; the outer magnetic components are arranged opposite to the side magnetic components; the end magnetic components are arranged opposite to the inner magnetic components; the outer magnetic components and the side magnetic components are magnetically identical at one end close to each other; the end magnetic components and the inner magnetic components are magnetically identical at one end close to each other.

[0016] The outer magnetic components comprise outer permanent magnetic components and outer electromagnet components.

[0017] The outer magnetic components comprise at least two groups of outer permanent magnetic components, which are spaced apart; the outer electromagnet components are arranged in the region between the two groups of outer permanent magnetic components; the outer permanent magnetic components are arranged at the edge of the inner wall of the outer support ring.

[0018] The outer permanent magnetic components, the side magnetic components, the end magnetic components and the inner magnetic components all comprise a plurality of permanent magnets.

[0019] The support cover comprises two oppositely arranged support brackets; the two support brackets are clamped and fixed on the support body; the side faces of the two support brackets are connected by fixing bolts.

[0020] The support bracket comprises a middle cover body, which has an arc shape in vertical section; the middle cover body is provided with a flange plate at each end; the flange plates of the two support brackets are arranged in opposite abutment.

[0021] The middle cover body comprises a cover plate, which is provided with a side limit plate on the side face; the side limit plate and the cover plate are arranged in intersecting manner.

[0022] The flange plate and the middle cover body are provided with a reinforcing rib plate at the connection position; the middle cover body is provided with a wire arranging groove in the middle region.

[0023] An assembly method of the intermediate transmission shaft assembly with magnetic suspension; the assembly method comprises the following steps:

[0024] Step 1: according to the design requirements, the inner magnetic group and the outer magnetic group in the magnetic suspension support mechanism are respectively assembled on the corresponding support bodies;

[0025] Step 2: assemble the transmission shaft;

[0026] Step 3: after step 2 is completed, install the support body on the transmission shaft;

[0027] When the support body is assembled:

[0028] First, one side lateral cover is threaded on the transmission shaft, then the inner support ring is threaded, then the outer support ring is threaded, and then the other side lateral cover is threaded;

[0029] After the above operation is completed, the support cover is covered on the support body after the assembly is completed;

[0030] Step 4: after step 3 is completed, the transmission shaft end associated parts are assembled, and thus an intermediate transmission shaft assembly is assembled.

[0031] The present application has the advantages that:

[0032] The application discloses a kind of intermediate transmission shaft assembly with magnetic suspension and its assembling method.

[0033] The present application can reduce the friction loss when the intermediate transmission shaft runs by using magnetic suspension support mechanism instead of transmission bearing mechanism, can reduce the running noise of the intermediate transmission shaft, and improve the transmission efficiency of the transmission shaft. BRIEF DESCRIPTION OF DRAWINGS

[0034] The content expressed by each figure of the present application specification and the marks in the figure are briefly described as follows:

[0035] Figure 1 It is a structural schematic diagram of the present application.

[0036] Figure 2 It is a structural schematic diagram of the support structure in the present application.

[0037] Figure 3 It is a sectional view of the support structure in the present application.

[0038] Figure 4 It is a structural schematic diagram when the transmission shaft is connected with the support structure in the present application.

[0039] Figure 5 It is a structural schematic diagram of the inner support body in the present application.

[0040] Figure 6 It is a structural schematic diagram of the lateral cover in the present application.

[0041] Figure 7 It is a sectional view of the lateral cover in the present application.

[0042] Figure 8 It is a structural schematic diagram of the outer support ring in the present application.

[0043] Figure 9 It is a sectional view of the outer support ring in the present application.

[0044] The marks in the above figures are as follows:

[0045] 1 - support structure, 2 - front universal joint cage, 3 - front axle head, 4 - front axle tube, 5 - shock absorbing paper, 6 - balance piece, 7 - sliding universal joint, 8 - middle support, 9 - fixing bolt, 10 - middle axle head, 11 - rear axle tube, 12 - damper, 13 - rear axle head, 14 - rear universal joint cage, 15 - connecting bolt. DETAILED DESCRIPTION

[0046] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0047] A kind of intermediate transmission shaft 1-1 assembly with magnetic suspension, including transmission shaft 1-1, support structure 1 is provided on the transmission shaft 1-1;The support structure 1 includes support cover 1-1;Support body is arranged in the support cover 1-1;The support body includes inner support body 1-2 and outer support body 1-3;The outer support body 1-3 is sleeved on inner support body 1-2;Magnetic suspension support mechanism is arranged between the inner support body 1-2 and outer support body 1-3;The present application can reduce the friction loss when the intermediate transmission shaft 1-1 runs by using magnetic suspension support mechanism instead of transmission bearing mechanism;It can reduce the running noise of intermediate transmission shaft 1-1 simultaneously, and improve the transmission efficiency of transmission shaft 1-1.

[0048] The intermediate transmission shaft 1-1 assembly disclosed in the present application, transmission shaft 1-1 plays a role of transmitting torque and power, and the support structure 1 arranged on the transmission shaft 1-1 is mainly used for supporting and connecting the transmission shaft 1-1, to facilitate the connection between the middle region of the transmission shaft 1-1 and the vehicle body chassis.

[0049] In the present application, the support structure 1 includes support cover 1-1;Support cover 1-1 mainly plays a role of external protection, and in the present application, support cover 1-1 also plays a role of limiting, to facilitate the subsequent limiting of the positions of inner support body 1-2 and outer support body 1-3, and realize the mounting and connection between inner support body 1-2 and outer support body 1-3.

[0050] In the present application, support body is arranged in the support cover 1-1;The support body is the main internal support structure 1 of magnetic suspension support mechanism, and cooperates with support cover 1-1 to realize the supporting effect on transmission shaft 1-1.

[0051] The support body in the application comprises an inner support body 1-2 and an outer support body 1-3; the outer support body 1-3 is sleeved on the inner support body 1-2; a magnetic levitation support mechanism is arranged between the inner support body 1-2 and the outer support body 1-3; the inner support body 1-2 is connected to the transmission shaft 1-1, and the two are generally fixedly connected, but of course can also be connected through buckling or other ways, the main purpose is to realize the connection of the inner support body 1-2 on the transmission shaft 1-1; in addition, the outer support body 1-3 in the application plays a bridging role, which is convenient for subsequent cooperation with the support cover 1-1, realizes the connection of the magnetic levitation support mechanism on the vehicle body, and is convenient for subsequent arrangement of the outer magnetic group 16 and other structures.

[0052] In the application, the magnetic levitation support mechanism mainly utilizes the principle that the same magnetic properties of magnets repel each other, so that the inner support body 1-2 and the outer support body 1-3 are connected while not contacting each other, thereby reducing or avoiding friction damage when the inner support body 1-2 and the outer support body 1-3 move relatively.

[0053] Further, the magnetic levitation support mechanism in the application comprises an inner magnetic group 17 arranged on the inner support body 1-2 and an outer magnetic group 16 arranged on the outer support body 1-3; the inner magnetic group 17 and the outer magnetic group 16 are spaced apart and opposite; the inner magnetic group 17 is arranged on the inner support body 1-2, and the outer magnetic group 16 is arranged on the outer support body 1-3; when the inner magnetic group 17 and the outer magnetic group 16 are arranged oppositely, the magnetic properties are the same in the close area, based on the same repulsion, the inner support body 1-2 and the outer support body 1-3 are spaced apart; the friction loss during operation is reduced.

[0054] Further, the inner support body 1-2 in the application comprises an inner support ring 19, which is the main structure of the inner support body 1-2; the inner support body 1-2 has an internal hole, which is convenient for subsequent sleeving on the transmission shaft 1-1; in addition, the outer support body 1-3 in the application comprises an outer support ring 18; the outer support ring 18 and the inner support ring 19 are coaxially arranged; in actual use, the outer support ring 18 is sleeved on the inner support ring 19; in the application, the outer support ring 18 has a lateral cover 20 on each of the two opposite ends; the lateral cover 20 and the end of the inner support ring 19 are spaced apart; based on such a setting, the outer support ring 18 and the two lateral covers 20 form a box body structure with a cavity inside; such a setting can surround the inner support body 1-2, which is convenient for cooperation with the inner magnetic group 17 and the outer magnetic group 16 to realize the repulsion support of the inner support body 1-2 and the outer support body 1-3 in the circumferential direction and the end part.

[0055] At the same time, in order to facilitate the sleeving of the outer support body 1-3 on the transmission shaft 1-1, the lateral cover 20 is also provided with a through hole structure at the center.

[0056] Further, in the application, the inner magnetic group 17 comprises side magnetic components 24 arranged on the inner support ring 19 and end magnetic components 25 arranged on the end surface of the inner support ring 19; the outer magnetic group 16 comprises outer magnetic components arranged on the outer support ring 18 and inner magnetic components 23 arranged on the lateral cover 20; the outer magnetic components are arranged opposite to the side magnetic components 24; the end magnetic components 25 are arranged opposite to the inner magnetic components 23; the outer magnetic components and the side magnetic components 24 are magnetically the same at one end close to each other; the end magnetic components 25 and the inner magnetic components 23 are magnetically the same at one end close to each other; the outer magnetic components of the application are arranged opposite to the side magnetic components 24; such arrangement can achieve lateral support limiting of the inner support body 1-2 to the outer support body 1-3, and the end magnetic components 25 and the inner magnetic components 23 can cooperate to achieve axial support limiting of the inner support body 1-2 to the outer support body 1-3.

[0057] Further, in the application, the outer magnetic components comprise outer permanent magnetic components 21 and outer electromagnetic components 22; the application optimizes the use effect by the cooperation of the outer permanent magnetic components 21 and the outer electromagnetic components 22; the outer permanent magnetic components 21 can be in a long-time repulsion state with the side magnetic components 24 during subsequent use, and the outer electromagnetic components 22 are generally used during vehicle operation; when the vehicle is running, the outer electromagnetic components 22 are energized; due to inertia, the inner support body 1-2 deviates to one side of the outer support body 1-3, the coil 221 cuts the magnetic flux, the magnetic flux increases, the repulsive force increases, the inertia force of the transmission shaft 1-1 is overcome, the intermediate transmission shaft 1-1 is prompted to return to the original position, and the stability of the transmission shaft 1-1 is ensured during vehicle movement.

[0058] Further, in the application, the outer magnetic components comprise at least two groups of outer permanent magnetic components 21, the two groups of outer permanent magnetic components 21 are spaced apart, and the outer electromagnetic components 22 are distributed between the two groups of outer permanent magnetic components 21; the outer permanent magnetic components 21 are distributed at the edge of the inner wall of the outer support ring 18; based on such arrangement, the two groups of outer permanent magnetic components 21 and the side magnetic components 24 can be in a long-time repulsion state, which ensures the longitudinal stable support of the inner support body 1-2 to the outer support body 1-3 when the vehicle is not running; and based on the above distribution mode, it is convenient for subsequent wiring operation, and it is also convenient for subsequent return control of the inner support body 1-2.

[0059] In addition, in the application, the outer permanent magnetic components 21, the side magnetic components 24, the end magnetic components 25 and the inner magnetic components 23 all comprise a plurality of permanent magnets; the arrangement mode of the permanent magnets in each component is set according to needs, which can generally be arranged in a row or in a ring.

[0060] In addition, in the application, one permanent magnet in the outer permanent magnet component 21 corresponds to one permanent magnet in the side magnetic component 24, and one permanent magnet in the end component corresponds to one permanent magnet in the inner magnetic component 23; based on such cooperation, the relative nature of the repulsive force is ensured; the relative support limiting of the inner support body 1-2 and the outer support body 1-3 is facilitated.

[0061] Further, in the application, the support cover 1-1 comprises two oppositely arranged support brackets 101; the two support brackets 101 are clamped and fixed on the support body; the two support brackets 101 are connected through fixing bolts 9 on the side surface; the support cover 1-1 of the application has the structure of two support brackets 101, the two support brackets 101 are extruded with each other, so as to extrude and limit the support body placed in the support cover 1-1; in the application, the support cover 1-1 mainly limits the position of the outer support body 1-3, because the outer support body 1-3 in the application is equivalent to having a three-section structure, the application ensures the integrity of the outer support body 1-3 through the arrangement of the support cover 1-1; the connection mode between the two support brackets 101 can be bolt connection or welding connection, the position of the two support brackets 101 is limited, so as to extrude the outer support body 1-3 in the support bracket 101, thereby ensuring the stability of the connection between the support cover 1-1 and the support body.

[0062] Meanwhile, in the application, the support cover 1-1 also serves as an assembly part, which facilitates the subsequent connection and installation of the support structure 1 on the chassis; subsequently, the support structure 1 can be connected to the vehicle body chassis through the bolts passing through the protective cover, thereby achieving the installation of the support structure 1 on the chassis.

[0063] Further, in the application, the support bracket 101 comprises a middle cover body, the vertical section of the middle cover body is arc-shaped; the middle cover body is provided with a flange plate 102 at each end; the flange plates 102 of the two support brackets 101 are arranged in opposite abutting mode; the support bracket 101 is in a few character type structure through the arrangement of the middle cover body and the two flange plates 102; the middle cover body mainly supports and limits the position of the outer support body 1-3, and the arrangement of the flange plate 102 mainly ensures the abutting degree of the two support brackets 101, which facilitates the subsequent locking and fixing of the two support brackets 101.

[0064] Further, the middle cover body in the application comprises a cover plate 1011, and side edge limiting plates 1012 are arranged on the side surface of the cover plate 1011; the side edge limiting plates 1012 are arranged in intersecting mode with the cover plate 1011; the cover plate 1011 is an arc-shaped plate structure, so that a groove structure is formed in the middle cover body, thereby facilitating the support limiting of the outer support body 1-3; and the side edge limiting plates 1012 are arranged at the edge of the cover plate 1011, are arranged at the end of the cover plate 1011, and are arranged in vertical mode with respect to the axial direction of the middle cover body; the side edge limiting plates 1012 can limit the end of the outer support body 1-3, thereby avoiding the longitudinal movement of the outer support body 1-3 along the middle cover body.

[0065] Meanwhile, the reinforcing rib plates 103 are arranged at the connection position of the flange plate 102 and the middle cover body in the application; the reinforcing rib plates 103 can ensure the strength of the connection position of the flange plate 102 and the middle cover body; meanwhile, the wire arranging grooves 104 are arranged in the middle region of the middle cover body in the application; the wire arranging grooves 104 facilitate the wire arranging operation of the coil 221 on the outer electromagnetic body.

[0066] An assembling method of the intermediate transmission shaft 1-1 assembly with magnetic suspension; the assembling method comprises the following steps:

[0067] Step 1: according to the design requirement, the inner magnetic group 17 and the outer magnetic group 16 in the magnetic suspension supporting mechanism are respectively assembled to the corresponding support bodies;

[0068] Step 2: the transmission shaft 1-1 is assembled;

[0069] Step 3: after the completion of step 2, the support body is installed on the transmission shaft 1-1;

[0070] When the support body is assembled:

[0071] first, one side lateral cover body 20 is threaded on the transmission shaft 1-1; then the inner support ring 19 is threaded, and then the outer support ring 18 is threaded, and then the other side lateral cover body 20 is threaded;

[0072] after the above operation is completed, the support cover 1-1 is covered on the support body after the above assembly is completed;

[0073] Step 4: after the completion of step 3, the end related components of the transmission shaft 1-1 are assembled; thus, the assembly of the intermediate transmission shaft 1-1 is completed.

[0074] The disclosure of the above assembling method can realize the rapid assembly of the intermediate transmission shaft 1-1 assembly.

[0075] Specifically:

[0076] The application discloses a middle transmission shaft 1-1 assembly with magnetic suspension; the middle transmission shaft 1-1 assembly disclosed by the application can replace conventional ordinary bearings and damping pads to support and install the transmission shaft 1-1 through the arrangement of the magnetic suspension supporting mechanism.

[0077] The application replaces the ordinary bearings and damping pads with the magnetic suspension middle support 8 to reduce friction loss, reduce noise and improve transmission efficiency.

[0078] The support structure 1 disclosed by the application is mainly arranged in the middle region of the transmission shaft 1-1 and is mainly suitable for the magnetic suspension middle support 8 of the middle transmission shaft 1-1 in the automobile four-wheel drive system.

[0079] The middle transmission shaft 1-1 assembly disclosed by the application can effectively transmit the power of the automobile four-wheel drive system.

[0080] The support structure 1 disclosed by the application should have the characteristics of radial / axial bearing capacity, low energy consumption, high stability and the like.

[0081] The middle transmission shaft 1-1 disclosed by the application can be matched with the automobile transfer and the reducer; the inner support of the support structure 1 is matched with the diameter of the shaft head of the transmission shaft 1-1, and the transmission shaft 1-1 is connected to the automobile chassis through the support structure 1.

[0082] The middle transmission shaft 1-1 assembly disclosed by the application can reduce friction loss; the inner support body 1-2 and the outer support body 1-3 are connected through the magnetic suspension supporting mechanism, the inner support body 1-2 and the outer support body 1-3 adopt a non-contact design, can significantly reduce friction loss and prolong the service life of the transmission shaft 1-1.

[0083] The support structure 1 disclosed by the application has low noise during operation, which helps to improve the comfort of the automobile.

[0084] The transmission efficiency is improved: the energy loss caused by friction is reduced, thereby improving the transmission efficiency; it is beneficial to keep stable work in the harsh working condition without abnormal sound. Specific embodiments:

[0086] The middle transmission shaft 1-1 assembly disclosed by the application can be widely applied to various automobile four-wheel drive systems, especially high-end vehicle models with high performance and reliability requirements.

[0087] The transmission shaft 1-1 disclosed by the application comprises a front shaft head 3, a front shaft tube 4, damping paper 5, a balance sheet 6, a sliding universal joint 7, a middle support 8, a fixing bolt 9, a middle shaft head 10, a rear shaft tube 11, a damper 12 and a rear shaft head 13.

[0088] The front universal joint ball cage 2 is connected to one end of the transmission shaft 1-1, and the rear universal joint ball cage 14 is connected to the other end of the transmission shaft 1-1; the front universal joint ball cage 2 is provided with a front connecting bolt 15, and the rear universal joint ball cage 14 is provided with a rear connecting bolt 15.

[0089] In the application, the outer spline of the front axle head 3 and the inner spline of the front universal joint ball cage 2 are connected through a snap spring.

[0090] The front axle head 3 is connected to the front axle tube 4 through friction welding, and the coaxiality is ensured.

[0091] The damping paper 5 is placed in the inside of the front axle tube 4, and the front axle tube 4 is connected to the sliding universal joint 7 through friction welding.

[0092] The front axle is assembled according to the above steps.

[0093] In the application, the middle axle head 10 is connected to the rear axle tube 11 through friction welding, and the damper 12 is pressed into the rear axle tube 11 through a press machine, and the interference fit causes the damper 12 to be unable to be taken out of the rear axle tube 11.

[0094] The rear axle head 13 is connected to the rear axle tube 11 through friction welding, and the outer spline of the rear axle head 13 and the inner spline of the rear universal joint ball cage 14 are connected through a snap spring; the rear axle is assembled according to the above steps.

[0095] In the application, the middle axle head 10 is pressed into the inner magnetic ring of the middle support 8 through a press machine, and the interference fit is realized.

[0096] The outer spline of the middle axle head 10 and the inner spline of the sliding universal joint 7 are connected through a snap spring; the intermediate transmission shaft 1-1 is assembled based on the above steps.

[0097] The front universal joint ball cage 2 is connected to the transfer through six connecting bolts 15; the rear universal joint ball cage 14 is connected to the speed reducer through six connecting bolts 15.

[0098] The support structure 1 disclosed by the application is connected to the bottom of the vehicle body through a fixing bolt 9; the application realizes the function of transmitting the power output by the power assembly transfer to the speed reducer.

[0099] The intermediate axle head is passed through the left lateral cover body 20, then is pressed into the inner support ring 19, is sleeved into the outer support body 1-3, then the right lateral cover body 20 is passed through the intermediate axle head, and the lateral cover body 20, the inner support and the outer support body 1-3 are fixed by using two support supports 101 to be welded and combined.

[0100] The each permanent magnet in the side magnetic component 24 is embedded on the outer side of the inner support ring 19, and the each permanent magnet in the end magnetic component 25 is embedded on the end face of the inner support ring 19; the each permanent magnet in the outer magnetic component is embedded on the inner side of the outer support ring 18 in the application; meanwhile, the each outer electromagnet in the outer electromagnet component 22 is also embedded on the inner side of the outer support ring 18; the each permanent magnet in the inner side component is embedded on the side of the lateral cover 20 close to the inner support ring 19.

[0101] Meanwhile, the coil 221 is wound on the outer electromagnet in the application.

[0102] The left lateral cover 20 and the left side of the inner support ring 19 generate repulsion in the application, so that the left lateral cover 20 and the inner support ring 19 are not in contact.

[0103] The right lateral cover 20 and the right side of the inner support ring 19 generate repulsion in the application, so that the right lateral cover 20 and the inner support ring 19 are not in contact.

[0104] The inner support ring 19 and the outer support ring 18 generate repulsion in the application, so that the gravity of the shaft tube is overcome, the inner support ring 19 and the outer support ring 18 are not in contact when the vehicle is static, and the position of the intermediate transmission shaft 1-1 is stable.

[0105] In addition, the inner support body 1-2 generates magnetic induction lines in the moving state of the vehicle, cuts the coil 221 of the outer magnetic ring electromagnet, generates repulsion, and when the vehicle moves, the inner support body 1-2 deviates to the side of the outer magnetic ring due to inertia, the magnetic flux of the coil 221 cutting the magnetic induction lines increases, the repulsion increases, the inertia force of the shaft tube is overcome, and the intermediate transmission shaft 1-1 returns to the original position, so that the support of the shaft tube is stable when the vehicle moves.

[0106] The bolts used in the application are standard parts.

[0107] Obviously, the specific implementation of the application is not limited by the above-mentioned mode, and various non-essential improvements made by adopting the method concept and technical scheme of the application are within the protection scope of the application.

Claims

1. A magnetically levitated intermediate shaft assembly, characterized in that, The transmission shaft is provided with a support structure; The support structure comprises a support cover, and a support body is arranged in the support cover; the support body comprises an inner support body and an outer support body; The outer support body is sleeved on the inner support body; A magnetic suspension support mechanism is arranged between the inner support body and the outer support body; The magnetic suspension support mechanism comprises an inner magnetic group arranged on the inner support body and an outer magnetic group arranged on the outer support body; the inner magnetic group and the outer magnetic group are spaced apart from each other; The inner support body comprises an inner support ring, and the outer support body comprises an outer support ring; the outer support ring is coaxially arranged with the inner support ring; one lateral cover body is arranged on each of the opposite ends of the outer support ring; the lateral cover bodies are spaced apart from the end of the inner support ring; The inner magnetic group comprises a side magnetic component arranged on the inner support ring and an end magnetic component arranged on the end face of the inner support ring; The outer magnetic group comprises an outer magnetic component arranged on the outer support ring and an inner magnetic component arranged on the lateral cover body; the outer magnetic component and the side magnetic component are arranged opposite to each other; the end magnetic component and the inner magnetic component are arranged opposite to each other; the outer magnetic component and the side magnetic component are magnetically the same at one end close to each other; the end magnetic component and the inner magnetic component are magnetically the same at one end close to each other; The outer magnetic component comprises an outer permanent magnetic component and an outer electromagnet component; The outer magnetic component comprises at least two groups of outer permanent magnetic components, the two groups of outer permanent magnetic components are spaced apart from each other, and the outer electromagnet component is arranged in the region between the two groups of outer permanent magnetic components; the outer permanent magnetic components are arranged at the edge of the inner wall of the outer support ring; The support cover comprises two oppositely arranged support brackets; the two support brackets are clamped and fixed on the support body; the support bracket comprises a middle cover body; one flange plate is arranged at each end of the middle cover body; the middle cover body comprises a cover plate, and a side limit plate is arranged on the side of the cover plate; the side limit plate and the cover plate are arranged in intersecting mode; The support structure can be connected to the vehicle body chassis through bolts penetrating the protective cover; When the support body is assembled on the transmission shaft: first, one side of the lateral cover body is penetrated on the transmission shaft; then the inner support ring is penetrated, followed by the outer support ring, and then the other side of the lateral cover body is penetrated; After the above operation is completed, the support cover is arranged on the support body after the assembly is completed.

2. A shaft assembly with magnetic levitation according to claim 1, characterized in that The outer permanent magnetic component, the side magnetic component, the end magnetic component and the inner magnetic component all comprise a plurality of permanent magnets.

3. A magnetically levitated intermediate shaft assembly as set forth in claim 1 wherein, The two support brackets are connected by fixed bolts on the sides.

4. A magnetically levitated intermediate shaft assembly as set forth in claim 1 wherein, The vertical section of the middle cover body is in arc shape; the flange plates of the two support brackets are arranged in opposite abutting mode.

5. A magnetically levitated intermediate shaft assembly according to claim 4, wherein, The flange plate and the middle cover body are connected with a reinforcing rib plate; a wire arranging groove is arranged in the middle region of the middle cover body.

6. A method of assembling a magnetically levitated intermediate shaft assembly as claimed in any one of claims 1 to 5, characterised in that ； The assembly method comprises the following steps: Step 1: according to the design requirements, the inner magnetic group and the outer magnetic group in the magnetic suspension support mechanism are respectively assembled on the corresponding support body; Step 2: the transmission shaft is assembled; Step 3: after step 2 is completed, the installation of the support body on the transmission shaft is performed; When the support body is assembled: first, one side of the lateral cover body is penetrated on the transmission shaft; then the inner support ring is penetrated, followed by the outer support ring, and then the other side of the lateral cover body is penetrated; After the above operation is completed, the support cover is arranged on the support body after the assembly is completed. Step 4: after step 3 is completed, the end part associated parts of the transmission shaft are assembled, and thus the intermediate transmission shaft assembly is assembled.

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