Support block assembly, steering system, and vehicle

Abstract

The application discloses a support pressing block assembly, a steering system and a vehicle. The support pressing block assembly comprises a rack and a support seat, the rack is adapted to engage with a gear, the support seat is located on the side of the rack away from the gear, and the support seat is arranged in a spaced manner with the rack. A first magnetic pole is arranged on the side of the rack close to the support seat by magnetization, a second magnetic pole is arranged on the side of the support seat facing the rack, and the first magnetic pole and the second magnetic pole are both S poles or N poles, so that repulsion is generated between the rack and the support seat. According to the support pressing block assembly, the first magnetic pole is arranged on the side of the rack close to the support seat by magnetization, so that the rack does not need to be slotted to accommodate other magnetic materials, the repulsion between the rack and the support seat can be realized, the structural strength of the rack is avoided to be reduced, and the damage risk of the rack is reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more specifically, to a support block assembly, a steering system, and a vehicle. Background Technology

[0002] In related technologies, the support block assembly includes a rack and a support base. By opening holes at the relative positions of the rack and the support base and adding permanent magnets in the holes, the permanent magnets on the rack and the permanent magnets on the support base repel each other due to their like poles, thus pushing the rack against the gear and eliminating the meshing gap between the rack and the gear. A non-contact support is formed between the rack and the support base, eliminating mechanical friction and wear between the rack and the support base. However, the structural strength of the rack is insufficient, which can easily lead to rack damage. Utility Model Content

[0003] This application aims to at least partially address one of the aforementioned technical problems in the prior art. To this end, this application proposes a support block assembly that improves the structural strength of the rack.

[0004] This application also proposes a steering system having the aforementioned support block assembly.

[0005] This application also proposes a vehicle having the aforementioned steering system.

[0006] According to an embodiment of this application, the support block assembly includes a rack and a support base. The rack is adapted to mesh with a gear, and the support base is located on the side of the rack away from the gear. The support base and the rack are spaced apart. A first magnetic pole is magnetized on the side of the rack near the support base, and a second magnetic pole is provided on the side of the support base facing the rack. Both the first magnetic pole and the second magnetic pole are S poles or N poles, so that a repulsive force is generated between the rack and the support base.

[0007] According to the support block assembly of the present application, by magnetizing a first magnetic pole on the side of the rack near the support base, the rack does not need to be slotted to accommodate other magnetic materials, and a repulsive force can be generated between the rack and the support base, thus avoiding the reduction of the structural strength of the rack and reducing the risk of damage to the rack.

[0008] According to some embodiments of this application, the rack includes at least a first segment structure and a second segment structure, the first segment structure and the second segment structure being connected in the length direction of the rack, the first segment structure being magnetized such that the side of the first segment structure near the support is magnetized to become the first magnetic pole.

[0009] According to some embodiments of this application, the first segment structure is always positioned opposite to the support base when the rack moves.

[0010] According to some embodiments of this application, the support block assembly further includes an adjusting member located on the side of the support seat away from the rack, the adjusting member being used to drive the support seat closer to or away from the rack.

[0011] According to some embodiments of this application, the support base and the adjusting member are magnetically attracted to each other, so that the support base and the adjusting member are connected.

[0012] According to some embodiments of this application, the support block assembly further includes a housing, the adjusting member is screwed to the housing, the adjusting member is adapted to drive the support seat closer to the rack when rotating in a first direction, and the adjusting member is adapted to drive the support seat away from the rack when rotating in a second direction.

[0013] According to some embodiments of this application, the support base is magnetized with a second magnetic pole on the side near the rack; or, a permanent magnet is installed on the side of the support base near the rack, and the side of the permanent magnet facing the rack is set as the second magnetic pole.

[0014] According to some embodiments of this application, the support base includes a third segment structure and a fourth segment structure, the third segment structure and the fourth segment structure are connected, the third segment structure is located on the side of the fourth segment structure close to the rack, and the third segment structure is magnetized with a second magnetic pole on the side facing the rack.

[0015] According to some embodiments of this application, the support block assembly further includes an adjusting member located on the side of the support base away from the rack. The support base includes a fifth segment structure, a fourth segment structure located between the third segment structure and the fifth segment structure, the fourth segment structure connecting the third segment structure and the fifth segment structure, and the fifth segment structure being magnetized so that the fifth segment structure is magnetically attracted to the adjusting member.

[0016] According to some embodiments of this application, the rack is magnetized as a whole; and / or, the support is a magnetic material component, and the support is magnetized as a whole.

[0017] According to some embodiments of this application, the support base has a first groove on the end face near the adjusting member and / or the end face of the adjusting member near the support base, and the support block assembly further includes a first buffer member, the first buffer member being at least partially disposed in the first groove, and the thickness of the first buffer member being greater than the groove depth of the first groove.

[0018] According to some embodiments of this application, the support block assembly further includes a housing having a first channel, the support seat being at least partially disposed within the first channel, the extension direction of the first channel having an angle with the length direction of the rack, and the support seat being adapted to approach or move away from the rack along the extension direction of the first channel.

[0019] According to some embodiments of this application, the support block assembly further includes a second buffer member, and a second groove is provided on the outer peripheral surface of the support base. The second buffer member is disposed in the second groove and abuts against the channel wall of the first channel.

[0020] According to some embodiments of this application, there are multiple second slots, which are spaced apart in the extending direction of the first channel.

[0021] A steering system according to another embodiment of this application includes a gear shaft and the aforementioned support block assembly. The gear shaft includes a steering shaft and a gear, the gear being disposed on the steering shaft, and the rack meshing with the gear.

[0022] According to another embodiment of the steering system of this application, the support block assembly has a first magnetic pole magnetized on the side of the rack near the support seat, so that the rack does not need to be slotted to accommodate other magnetic materials, and a repulsive force can be generated between the rack and the support seat, thereby avoiding the reduction of the structural strength of the rack and reducing the risk of damage to the rack.

[0023] A vehicle according to another aspect of this application includes the steering system described above.

[0024] According to another embodiment of the vehicle, the support block assembly of the steering system has a first magnetic pole magnetized on the side of the rack near the support seat, so that the rack does not need to be slotted to accommodate other magnetic materials, and a repulsive force can be generated between the rack and the support seat, thereby avoiding the reduction of the structural strength of the rack and reducing the risk of rack damage.

[0025] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the steering system according to an embodiment of this application;

[0027] Figure 2 This is a diagram showing the fit between the rack and the support according to an embodiment of this application;

[0028] Figure 3 This is an exploded view of the rack and support according to an embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the adjusting member and support base according to an embodiment of this application;

[0030] Figure 5 This is yet another structural schematic diagram of the steering system according to an embodiment of this application;

[0031] Figure 6 This is a schematic diagram of a vehicle according to an embodiment of this application.

[0032] Figure label:

[0033] Vehicle 1000, steering system 100, support block assembly 10, rack 1, first section structure 11, second section structure 12, gear shaft 2, gear 21, steering shaft 22, support seat 3, third section structure 31, fourth section structure 32, fifth section structure 33, adjusting component 4, housing 5, first groove 61, second groove 62, first buffer component 71, second buffer component 72. Detailed Implementation

[0034] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0035] In the description of this application, 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] The following is combined Figures 1-6 The present application describes in detail the support block assembly 10, the steering system 100 having the support block assembly 10, and the vehicle 1000 having the steering system 100 according to embodiments of the present application.

[0037] See Figures 1-3 As shown, the support block assembly 10 according to an embodiment of this application may include a rack 1 and a support base 3. The rack 1 is adapted to mesh with a gear 21, and the support base 3 is located on the side of the rack 1 facing away from the gear 21. The support base 3 and the rack 1 are spaced apart. A first magnetic pole is magnetized on the side of the rack 1 closest to the support base 3, and a second magnetic pole is provided on the side of the support base 3 facing the rack 1. Both the first and second magnetic poles are either S poles or N poles, so that a repulsive force is generated between the rack 1 and the support base 3. For example... Figure 2As shown, the repulsive force F1 of the support base 3 on the rack 1, and the repulsive force F2 of the rack 1 on the support base 3.

[0038] Specifically, the rack 1 and the support base 3 form a non-contact support due to the repulsion of like poles, with no direct friction between them. This significantly reduces mechanical wear between the rack 1 and the support base 3 during operation, extending their service life. Simultaneously, it avoids noise generated by contact friction between the rack 1 and the support base 3, improving the quietness of the support block assembly 10 during operation. The repulsive force generated between the rack 1 and the support base 3 can push the rack 1 against the gear 21, eliminating the meshing clearance between the rack 1 and the gear 21.

[0039] Meanwhile, the rack 1 has a first magnetic pole magnetized on the side near the support base 3. Without the need for slots to accommodate other magnetic materials, the entire or part of the rack 1 can be magnetized, thereby generating a repulsive force between the rack 1 and the support base 3. This avoids reducing the structural strength of the rack 1 and reduces the risk of damage to the rack 1.

[0040] It should be understood that the phrase "the side of the rack 1 closest to the support base 3 is magnetized with a first magnetic pole" in this application means that the rack 1 is made of a magnetizable material, and the rack 1 becomes magnetic after being magnetized in its entirety or in part, wherein at least the side of the rack 1 closest to the support base 3 is magnetized and exhibits the characteristics of a first magnetic pole. Subsequent descriptions of the magnetization configuration are similar and will not be repeated here.

[0041] In some embodiments, the rack 1 may be magnetized in its entirety, and the side of the rack 1 closest to the support 3 may be the first magnetic pole.

[0042] In some embodiments, the magnetization of a portion of the rack 1 may be a local area on the rack 1 (e.g., a section near the support 3) that is magnetized, while other areas have little or no magnetism.

[0043] In some embodiments, the rack 1 is a magnetic material component, which can be understood as a material that becomes magnetic after being magnetized.

[0044] The magnetic material mentioned in this application can be a permanent magnet material (such as neodymium iron boron, ferrite, etc.) or a soft magnetic material (such as silicon steel sheet, permalloy, etc.).

[0045] In some embodiments, the side of the rack 1 closest to the support 3 is a first magnetic pole, and the side of the rack 1 closest to the support 3 has a first region and other regions, with only the first region acting as the first magnetic pole.

[0046] In some embodiments, the side of the rack 1 closest to the support 3 is a first magnetic pole, and the side of the rack 1 closest to the support 3 has a first region and other regions. The multiple regions of the rack 1 act as the first magnetic pole, wherein the first region acts as the first magnetic pole.

[0047] In some embodiments, the first magnetic pole is an N pole, and the second magnetic pole is also an N pole.

[0048] In some embodiments, the first magnetic pole is the S pole, and the second magnetic pole is also the S pole.

[0049] In related technologies, the support block assembly includes a rack and a support base. By opening holes at the relative positions of the rack and the support base and adding permanent magnets in the holes, the permanent magnets on the rack and the permanent magnets on the support base repel each other due to their like poles, thus pushing the rack against the gear and eliminating the meshing gap between the rack and the gear. A non-contact support is formed between the rack and the support base, eliminating mechanical friction and wear between the rack and the support base. However, the structural strength of the rack is insufficient, which can easily lead to rack damage.

[0050] According to the support block assembly 10 of this application embodiment, by magnetizing a first magnetic pole on the side of the rack 1 near the support base 3, the rack 1 does not need to be slotted to accommodate other magnetic materials, and a repulsive force can be generated between the rack 1 and the support base 3, thereby avoiding the reduction of the structural strength of the rack 1 and reducing the risk of damage to the rack 1.

[0051] In some embodiments of this application, see Figure 2 , Figure 3 As shown, the rack 1 includes at least a first segment 11 and a second segment 12, which are connected along the length of the rack 1. The first segment 11 is magnetized so that the side of the first segment 11 closest to the support 3 is magnetized as the first magnetic pole. Specifically, during the meshing process of the rack 1 and the gear 21, the force is often concentrated in a specific area (such as near the meshing point). During the rotation of the gear 21, it meshes with the first segment 11 of the rack 1, rather than the entire length of the rack 1. Magnetizing only the first segment 11 (which can be set according to the area of ​​concentrated force) allows the repulsive force to be concentrated on the key parts that need support and buffering, avoiding uneven distribution or redundant repulsive force caused by magnetizing the entire rack 1. This allows for a more precise balance of the local load when the rack 1 meshes with the gear 21, improving the effectiveness and specificity of the support 3 in providing non-contact support for the rack 1.

[0052] In some embodiments of this application, see Figure 2 , Figure 3 As shown, when the rack 1 moves, the first segment structure 11 and the support base 3 are always positioned opposite each other. Specifically, the first segment structure 11 is the core area where the rack 1 and the support base 3 generate repulsive force. The fact that the first segment structure 11 and the support base 3 are always positioned opposite each other means that the point of application and direction of the repulsive force remain stable, and there will be no interruption of the repulsive force or a sudden change in the direction of the repulsive force due to the movement of the rack 1.

[0053] It should be noted that "the first segment structure 11 and the support base 3 are always set opposite to each other" can mean that the orthogonal projection of the support base 3 on the rack 1 is always located on the first segment structure 11.

[0054] In some embodiments of this application, see Figure 1 , Figure 4 As shown, the support block assembly 10 also includes an adjusting member 4, which is located on the side of the support base 3 away from the rack 1. The adjusting member 4 is used to drive the support base 3 closer to or further away from the rack 1. Specifically, the adjusting member 4 is located on the side of the support base 3 away from the rack 1. The adjusting member 4 can limit the support base 3, preventing the support base 3 from moving away from the rack 1 due to repulsive force, thus reducing the repulsive force between the support base 3 and the rack 1. At the same time, the adjusting member 4 adjusts the intensity of the repulsive force between the support base 3 and the rack 1 as needed by changing the distance between the support base 3 and the rack 1 (the repulsive force increases when the support base 3 is closer to the rack 1, and decreases when the support base 3 is farther away from the rack 1), so that the supporting force of the support base 3 on the rack 1 can always ensure good meshing between the gear 21 and the rack 1. For example, when the required support force of rack 1 is large, drive support 3 to move closer to rack 1; when the required support force of rack 1 is small, move support 3 away from rack 1 to avoid excessive repulsive force causing rack 1 and gear 21 to jam, thereby ensuring the stability of the meshing of rack 1 and gear 21 under all working conditions.

[0055] Optionally, the adjusting component 4 can be a bolt, stud, screw, push rod, etc.

[0056] In some embodiments of this application, see Figure 4 As shown, the support base 3 and the adjusting component 4 are magnetically attracted to each other, thus connecting them. Specifically, the magnetic attraction is achieved through natural adsorption by magnetic force, eliminating the need for complex alignment procedures. The support base 3 and the adjusting component 4 can automatically attract and correct their relative positions within a certain range, significantly reducing assembly difficulty, shortening assembly time, and improving the efficiency of mass production. Furthermore, when it is necessary to replace the support base 3 and the adjusting component 4, the magnetic connection allows for simultaneous removal of the support base 3 by disassembling the adjusting component 4. Conversely, when the adjusting component 4 and the support base 3 need to be separated, only the magnetic attraction between them needs to be overcome. This allows for quick disassembly of the adjusting component 4 and the support base 3 without tools, greatly simplifying maintenance procedures, reducing downtime, and lowering maintenance costs.

[0057] For example, Figure 4 As shown, the support 3 generates a suction force F3 on the adjusting member 4.

[0058] In some embodiments of this application, the adjusting member 4 is a material that can be magnetically attracted, such as pure metals like iron, nickel, and cobalt, or alloys like carbon steel, stainless steel, cast iron, nickel alloys, and cobalt alloys.

[0059] In some other embodiments of this application, the adjusting member 4 can be a magnetic material. The magnetism of the end of the support base 3 facing the adjusting member 4 is opposite to the magnetism of the end of the adjusting member 4 facing the support base 3, thereby achieving magnetic attraction between the support base 3 and the adjusting member 4.

[0060] In some embodiments of this application, see Figure 1 , Figure 4 As shown, the support block assembly 10 also includes a housing 5, and an adjusting member 4 is screwed to the housing 5. When the adjusting member 4 rotates in a first direction, it is adapted to drive the support seat 3 closer to the rack 1. When the adjusting member 4 rotates in a second direction, it is adapted to drive the support seat 3 away from the rack 1. Specifically, the screw connection (such as a threaded fit) between the adjusting member 4 and the housing 5 has a precise transmission ratio. For every certain angle that the adjusting member 4 rotates, the moving distance of the support seat 3 is fixed. The quantitative adjustment of the distance between the support seat 3 and the rack 1 can be achieved by controlling the rotation angle of the adjusting member 4.

[0061] In some embodiments not shown in the figure, a permanent magnet is installed on the side of the support base 3 near the rack 1, and the side of the permanent magnet facing the rack 1 is set as the second magnetic pole. Specifically, by installing a permanent magnet on the side of the support base 3 near the rack 1, a non-contact support is formed between the support base 3 and the rack 1 due to the repulsive force generated between the permanent magnet and the rack 1. There is no direct friction between the permanent magnet and the rack 1, or between the support base 3 and the rack 1, which can significantly reduce the mechanical wear between the rack 1 and the support base 3 during the movement of the rack 1, extend the service life, and avoid the noise generated by the contact friction between the rack 1 and the support base 3, and between the rack 1 and the permanent magnet, thereby improving the quietness of the operation of the support block assembly 10.

[0062] In some embodiments of this application, see Figure 1 , Figure 2 , Figure 4 As shown, the support base 3 has a second magnetic pole magnetized on the side near the rack 1. Specifically, by magnetizing the second magnetic pole on the side of the support base 3 near the rack 1, the entire or part of the support base 3 can be magnetized without the need for slots to accommodate other magnetic materials. This generates a repulsive force between the rack 1 and the support base 3, preventing a reduction in the structural strength of the support base 3 and lowering the risk of damage to the support base 3.

[0063] In some embodiments, the support base 3 is a magnetic material component.

[0064] In some embodiments of this application, see Figure 1 , Figure 2 , Figure 4As shown, the support base 3 includes a third segment structure 31 and a fourth segment structure 32. The third segment structure 31 and the fourth segment structure 32 are connected. The third segment structure 31 is located on the side of the fourth segment structure 32 closer to the rack 1. The side of the third segment structure 31 facing the rack 1 is magnetized with a second magnetic pole.

[0065] Specifically, only the third section 31 of the support base 3 is magnetized, while the fourth section 32 can remain unmagnetized or weakly magnetized, which can effectively reduce the interference of the magnetic field on the adjustment component 4, the housing 5 and other surrounding components.

[0066] For example, if the adjusting component 4 is a metal part (such as a bolt or metal push rod), the non-magnetized fourth section structure 32 can reduce the magnetic adsorption of the adjusting component 4, avoid the adjusting component 4 from being stuck due to magnetic force or abnormal force, and ensure smooth adjustment function.

[0067] For example, if there are other precision electronic components or magnetically sensitive parts in the vicinity, the magnetic field concentrated in the third structure 31 can reduce magnetic interference to them and improve the overall electromagnetic compatibility of the equipment.

[0068] In some alternative embodiments, the third segment 31 and the fourth segment 32 of the support 3 may both be magnetized.

[0069] In some embodiments not shown in the figure, a permanent magnet is installed on the side of the support base 3 facing the adjustment member 4, and the permanent magnet is magnetically attracted to the adjustment member 4.

[0070] In some embodiments of this application, see Figure 1 , Figure 2 , Figure 4 As shown, the support block assembly 10 also includes an adjusting member 4, which is located on the side of the support base 3 away from the rack 1. The support base 3 includes a fifth segment structure 33, and a fourth segment structure 32 is located between the third segment structure 31 and the fifth segment structure 33. The fourth segment structure 32 connects the third segment structure 31 and the fifth segment structure 33. The fifth segment structure 33 is magnetized so that the fifth segment structure 33 and the adjusting member 4 are magnetically attracted.

[0071] Specifically, after the fifth segment structure 33 is magnetized, the end of the fifth segment structure 33 facing the adjustment member 4 attracts the adjustment member 4. For example, in some embodiments, the magnetism of the end of the fifth segment structure 33 facing the adjustment member 4 is opposite to the magnetism of the end of the adjustment member 4 facing the fifth segment structure 33, thus achieving magnetic attraction between the fifth segment structure 33 and the adjustment member 4. Different magnetization intensities or magnetic pole directions can be designed to meet the matching requirements of the third segment structure 31 and the rack 1, and the matching requirements of the fifth segment structure 33 and the adjustment member 4 respectively (e.g., the third segment structure 31 is a strong magnet to ensure that the repulsive force with the rack 1 satisfies the stable meshing of the rack 1 and the gear 21, while the fifth segment structure 33 is a weak magnet to satisfy the connection). This avoids the magnetic fields of the third segment structure 31 and the fifth segment structure 33 from superimposing or canceling each other out, ensuring the stability of their respective magnetic functions.

[0072] The fourth segment 32 can be made of non-magnetic or weakly magnetic materials to further block the magnetic field interference between the third segment 31 and the fifth segment 33, avoid the third segment 31 and the fifth segment 33 from affecting each other and demagnetizing, and make the magnetic effects of the third segment 31 and the fifth segment 33 more independent and controllable.

[0073] In some embodiments, the side of the fifth segment 33 facing the adjustment member 4 is magnetized to form a third magnetic pole. The third magnetic pole may have the same or opposite magnetic properties as the second magnetic pole.

[0074] For example, the second magnetic pole is the N pole, and the third magnetic pole can also be the N pole.

[0075] For example, the second magnetic pole is the N pole, and the third magnetic pole can be the S pole.

[0076] In some embodiments of this application, the rack 1 is magnetized as a whole; and / or, the support 3 is a magnetic material component, and the support 3 is magnetized as a whole.

[0077] In some embodiments not shown in the figures, the rack 1 is magnetized as a whole, while the support 3 is not magnetized. For example, a groove is provided on the side of the support 3 near the rack 1, and a permanent magnet is arranged in the groove. There is a repulsive force between the permanent magnet and the rack 1, so that the rack 1 is tightly pressed against the gear 21.

[0078] Specifically, as a mating component, the overall magnetization of rack 1 ensures a uniform magnetic field distribution along its length, avoiding weak magnetic areas caused by local unmagnetization or insufficient magnetization. When rack 1 moves, regardless of its position, support base 3 maintains a stable repulsive force with rack 1, preventing support base 3 from loosening, displacement deviation, or mating failure due to local magnetic fluctuations.

[0079] In some embodiments not shown in the figures, the support base 3 is made of magnetic material, and the entire support base 3 is magnetized, while a portion of the rack 1 is magnetized. For example, the rack 1 is divided into a first segment 11 and a second segment 12. During the movement of the rack 1, the first segment 11 is always directly facing the support base 3 and is magnetized, while the second segment 12 is not magnetized.

[0080] Specifically, after the support base 3 is magnetized as a whole, its different functional sections (such as the third section structure 31 that cooperates with the rack 1 and the fifth section structure 33 that cooperates with the adjustment component 4) can achieve a stabilizing effect by relying on the overall magnetism, without the need to magnetize each section separately, thus avoiding process differences (such as uneven magnetic force and insufficient strength) caused by segmented magnetization.

[0081] In some embodiments, see Figures 2-4 As shown, the rack 1 is magnetized as a whole, and the support base 3 is made of magnetic material and is magnetized as a whole.

[0082] In some embodiments of this application, see Figure 3 , Figure 4 As shown, the support base 3 has a first groove 61 on the end face near the adjusting member 4 and / or the end face of the adjusting member 4 near the support base 3. The support block assembly 10 also includes a first buffer member 71, which is at least partially disposed within the first groove 61. The thickness of the first buffer member 71 is greater than the depth of the first groove 61. Specifically, the thickness of the first buffer member 71 is greater than the depth of the first groove 61. When the adjusting member 4 moves the support base 3 closer to or away from the rack 1, the relative movement or vibration between the two will be absorbed by the elastic deformation of the first buffer member 71, thus avoiding impact, wear, or noise caused by direct rigid contact between the support base 3 and the adjusting member 4.

[0083] In some embodiments, the first groove 61 is only present on the end face of the support 3 near the adjusting member 4.

[0084] In some embodiments, only the end face of the adjusting member 4 near the support 3 has a first groove 61.

[0085] In some embodiments, the support base 3 has a first groove 61 on the end face near the adjusting member 4 and on the end face of the adjusting member 4 near the support base 3.

[0086] In some embodiments, the first buffer 71 of this application may be an O-ring, a washer, or the like. The material of the first buffer 71 is a vibration-damping material, such as rubber or elastic plastic.

[0087] In some embodiments of this application, see Figure 1 , Figure 3 , Figure 4As shown, the support block assembly 10 also includes a housing 5, which has a first channel. The support seat 3 is at least partially disposed within the first channel. The extension direction of the first channel forms an angle with the length direction of the rack 1. The support seat 3 is adapted to move closer to or further away from the rack 1 along the extension direction of the first channel. Specifically, the first channel of the housing 5 can form a stable wrapping guide for the support seat 3 (e.g., the channel wall of the first channel is directly or indirectly attached to the outer peripheral surface of the support seat 3), ensuring that the movement direction of the support seat 3 is always along the preset angle, avoiding wear or abnormal fit of the rack 1 caused by the misalignment of the support seat 3. In addition, the housing 5, as a load-bearing base, can distribute the force on the support seat 3 to the overall structure, reducing local stress concentration and extending the service life of the components.

[0088] The angle between the extension direction of the first channel and the length direction of rack 1 is neither 0° nor 180°; for example, the range of this angle can be 70° to 110°. Figure 1 In the example shown, the included angle is 90°. In some embodiments not shown in the figure, the included angle can be 75°, 80°, 85°, 95°, 100°, 105°, etc.

[0089] The adjusting component 4 is a bolt. The channel wall of the first channel is provided with internal threads. The bolt is screwed into the internal threads. By rotating the bolt, the depth of the adjusting component 4 screwed into the first channel can be changed, thereby adjusting the position of the support seat 3 in the first channel, and thus adjusting the distance between the support seat 3 and the rack 1.

[0090] In some embodiments of this application, see Figure 1 , Figure 3 , Figure 4 As shown, the support block assembly 10 also includes a second buffer member 72. A second groove 62 is provided on the outer peripheral surface of the support base 3, and the second buffer member 72 is disposed in the second groove 62 and abuts against the channel wall of the first channel. Specifically, the second buffer member 72 can isolate the direct contact between the outer peripheral surface of the support base 3 and the channel wall of the first channel. When the support base 3 moves along the extension direction of the first channel, the second buffer member 72 can deform, avoiding wear, scratches, or harsh noise caused by friction between the outer peripheral surface of the support base 3 and the channel wall of the first channel, thus extending the service life of the support base 3 and the housing 5.

[0091] In some embodiments, the second buffer 72 of this application may be an O-ring, a washer, or the like. The material of the second buffer 72 is a vibration-damping material, such as rubber or elastic plastic.

[0092] In some embodiments of this application, see Figure 1 , Figure 3 , Figure 4As shown, there are multiple second grooves 62, which are spaced apart in the extension direction of the first channel. Specifically, the multiple spaced second buffers 72 can contact the channel wall from different axial positions of the support 3 (along the extension direction of the first channel) to form multi-point support, which can more evenly distribute the radial force on the support 3, ensure the linear movement accuracy of the support 3 along the first channel, and indirectly ensure the consistency of the pressing position of the rack 1.

[0093] Optionally, the number of second slots 62 can be two, three, four, five, or more. For example... Figure 4 As shown, there are two second slots 62.

[0094] See Figure 5 As shown, the steering system 100 according to another embodiment of this application includes a gear shaft 2 and the aforementioned support block assembly 10. The gear shaft 2 includes a steering shaft 22 and a gear 21. The gear 21 is disposed on the steering shaft 22, and the rack 1 meshes with the gear 21.

[0095] According to another embodiment of the present application, the steering system 100 has a support block assembly 10 with a first magnetic pole magnetized on the side of the rack 1 near the support base 3. This allows the rack 1 to generate a repulsive force between the rack 1 and the support base 3 without the need for slots to accommodate other magnetic materials, thus avoiding a reduction in the structural strength of the rack 1 and reducing the risk of damage to the rack 1.

[0096] In some embodiments not shown in the figure, the gear 21 and the steering shaft 22 are separate components, with the gear 21 mounted on the steering shaft 22.

[0097] In some embodiments, see Figure 1 As shown, gear 21 and steering shaft 22 are an integral structure.

[0098] See Figure 6 As shown, a vehicle 1000 according to another aspect of this application includes the steering system 100 described above.

[0099] According to another aspect of the present application, in the vehicle 1000, the support block assembly 10 of the steering system 100 has a first magnetic pole magnetized on the side of the rack 1 near the support seat 3, so that the rack 1 does not need to be slotted to accommodate other magnetic materials, and a repulsive force can be generated between the rack 1 and the support seat 3, thereby avoiding the reduction of the structural strength of the rack 1 and reducing the risk of damage to the rack 1.

[0100] The following description uses a specific embodiment as an example.

[0101] In one specific embodiment of this application, the support block assembly 10 forms the same S or N polarity magnetic pair on the opposing surfaces of the support base 3 (e.g., the block) and the rack 1 through a local magnetization method. This generates an electromagnetic repulsion force between the support base 3 and the back of the rack 1, avoiding the frictional wear caused by direct contact between the support base with spring support and the back of the rack in related technologies. This achieves the goal of never wearing out the support base 3 and the rack 1, effectively reducing the surface material and coating requirements of the support base 3 and the back of the rack to cope with frictional wear, and achieving the purpose of cost reduction and efficiency improvement.

[0102] like Figure 2 As shown, to achieve a wear-free design, localized magnetization is applied to the tooth backs of rack 1 near the support base 3, creating identical S or N pole polarities. Simultaneously, localized magnetization is also applied to the positions where the support base 3 and the tooth backs of rack 1 are close together, creating identical S or N pole polarities. This design generates electromagnetic repulsion between the support base 3 and the tooth backs of rack 1, effectively preventing direct contact wear and ensuring the meshing stability of gear shaft 2 and rack 1.

[0103] like Figure 3 , Figure 5 As shown, the support base 3 and rack 1 are located between the gear shaft 2 and the adjusting member 4, and are fixed in place by the housing 5. Its main function is to ensure the meshing stability between the gear shaft 2 and rack 1 during the steering process (e.g., electric power steering) when receiving steering signals and performing steering. Structurally, the support base 3 is equipped with a first buffer member 71 (e.g., an O-ring) and a second buffer member 72 (e.g., an O-ring).

[0104] Specifically, the first buffer 71 is embedded in the first groove 61 (e.g., a rectangular recess) at the bottom of the support base 3 (i.e., the end near the adjusting member 4) and abuts against the adjusting member 4. During turning, the first buffer 71 can effectively absorb the axial impact from the support base 3. The second buffer 72 is embedded in the two second grooves 62 (e.g., rectangular recesses) around the support base 3 and abuts against the housing 5. The second buffer 72 is used to absorb the radial impact generated by the support base 3 during movement.

[0105] To improve assembly and disassembly efficiency, the back of the support 3 (i.e., the side away from the rack 1) is magnetized, allowing it to be installed and removed along with the adjusting component 4 (e.g., the adjusting bolt). Figure 4As shown, the back of the support base 3 is magnetized to form an S or N pole polarity. During installation, the support base 3 is attracted to the adjusting component 4 by electromagnetic attraction, and as the adjusting component 4 is tightened, an electromagnetic repulsion force is generated between the support base 3 and the rack 1, thereby achieving stable support for the rack 1. During disassembly, the support base 3 is also attracted to the adjusting component 4 by electromagnetic attraction, which facilitates removal and avoids the problem of the support base 3 flying off due to electromagnetic repulsion.

[0106] The magnetic force calculation method is as follows: given the magnetic pole area A and the remanence B... r Given the working distance r and the free permeability μ0, the magnetic charge m satisfies:

[0107]

[0108] The corresponding magnetic force F satisfies:

[0109]

[0110] Wherein, the magnetic pole area A is the effective area of ​​the support 3 facing the rack 1 that participates in generating the repulsive force. Residual magnetism B r Magnetic charge (m) is the magnetic flux density remaining in the direction of the original external magnetic field after a magnetic material has been magnetized to saturation and the external magnetic field has been removed. It reflects the ability of the magnetic material to retain its magnetism. Magnetic charge (m) is a physical quantity used to describe the strength of a magnetic pole. Vacuum permeability (μ0) is a constant used to describe the fundamental properties of a magnetic field in a vacuum. In the International System of Units (SI), vacuum permeability μ0 = 4π × 10⁻⁶. -7 The magnetic force F is the interaction force between the support 3 and the rack 1 due to magnetism. The working distance r is the distance between the corresponding magnetic poles of the support 3 and the rack 1.

[0111] Taking a specific embodiment as an example, both the magnetic material of the rack 1 and the magnetic material of the support base 3 are neodymium iron boron magnets. For example, when the supporting force of the rack 1 needs to be no less than 800N, the magnetic pole area A = 4cm². 2 Residual magnetism B r =1.2T, distance r=2mm, the calculated magnetic force F=3648N, the generated magnetic force is sufficient to meet the support force required by the actual rack 1.

[0112] Neodymium iron boron (NdFeB) magnets exhibit extremely slow magnetic decay, allowing them to maintain their magnetism for extended periods. Theoretically, their lifespan can reach decades or even centuries. However, in practice, they gradually demagnetize due to environmental factors, primarily temperature, corrosion, and oxidation. NdFeB's Curie temperature is approximately 310℃–400℃; exceeding this temperature will result in complete demagnetization. Low temperatures (such as -50℃) generally do not cause demagnetization, extending its operating range far beyond the requirements of automotive applications. NdFeB is prone to oxidation, especially in humid or acidic / alkaline environments. Corrosion can damage the material structure, leading to a decrease in magnetic properties. Electroplating (nickel, zinc, epoxy resin, etc.) or surface coatings can significantly extend its lifespan.

[0113] The price of magnetization processes for neodymium iron boron (NdFeB) magnets is affected by factors such as magnet size, shape, magnetization method, batch size, and process complexity. Energy consumption per magnetization cycle is related to magnetic field strength; generally, the energy cost for a single small magnet is 0.1 yuan. Unipolar axial magnetization has low costs, and with large-scale automated production lines spreading the cost, the labor cost per magnetization unit is approximately 0.5 to 5 yuan. Surface treatment, such as electroplating (nickel, zinc, etc.) or spraying, costs approximately 5 to 20 yuan per unit (depending on size and plating type).

[0114] The support block assembly 10 of this application adopts a magnetic and O-ring support scheme, which avoids abnormal noise caused by the sudden change in the displacement curve of the support seat 3 due to different stiffness preload during the movement process. At the same time, the magnetic attraction between the support seat 3 and the adjusting component 4 facilitates the installation and removal of the support seat 3.

[0115] The support block assembly 10 of this application uses magnetic repulsion to achieve the support effect of the support seat 3 on the rack 1, completely eliminating mechanical friction and wear, and achieving never-wearing.

[0116] The support block assembly 10 of this application uses local magnetization on the back surface of the rack 1 (i.e. the side near the support base 3) to avoid the impact of slotting the rack 1 to embed the magnet on the structural strength of the rack 1.

[0117] In the description of this application, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship 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, and therefore should not be construed as a limitation of this application.

[0118] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0119] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0120] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A support block assembly (10), characterized in that, include: A rack (1) adapted to mesh with a gear (21); Support base (3), the support base (3) is located on the side of the rack (1) away from the gear (21), and the support base (3) is spaced apart from the rack (1); The rack (1) is magnetized with a first magnetic pole on the side near the support base (3), and the support base (3) is provided with a second magnetic pole on the side facing the rack (1). Both the first magnetic pole and the second magnetic pole are S poles or N poles, so that a repulsive force is generated between the rack (1) and the support base (3).

2. The support block assembly (10) according to claim 1, characterized in that, The rack (1) includes at least a first segment structure (11) and a second segment structure (12), the first segment structure (11) and the second segment structure (12) are connected in the length direction of the rack (1), and the first segment structure (11) is magnetized so that the side of the first segment structure (11) near the support base (3) is magnetized to become the first magnetic pole.

3. The support block assembly (10) according to claim 2, characterized in that, When the rack (1) moves, the first segment structure (11) and the support base (3) are always positioned opposite each other.

4. The support block assembly (10) according to claim 1, characterized in that, The support block assembly (10) further includes an adjusting member (4), which is located on the side of the support base (3) away from the rack (1) and is used to drive the support base (3) closer to or further away from the rack (1).

5. The support block assembly (10) according to claim 4, characterized in that, The support base (3) and the adjusting member (4) are magnetically attracted to each other so that the support base (3) and the adjusting member (4) are connected.

6. The support block assembly (10) according to claim 5, characterized in that, The support block assembly (10) further includes a housing (5), and the adjusting member (4) is screwed to the housing (5). When the adjusting member (4) rotates in the first direction, it is adapted to drive the support seat (3) closer to the rack (1). When the adjusting member (4) rotates in the second direction, it is adapted to drive the support seat (3) away from the rack (1).

7. The support block assembly (10) according to any one of claims 1-6, characterized in that, The support base (3) is magnetized with the second magnetic pole on the side near the rack (1); or, a permanent magnet is installed on the side of the support base (3) near the rack (1), and the side of the permanent magnet facing the rack (1) is set as the second magnetic pole.

8. The support block assembly (10) according to any one of claims 1-6, characterized in that, The support base (3) includes a third segment structure (31) and a fourth segment structure (32), the third segment structure (31) and the fourth segment structure (32) are connected, the third segment structure (31) is located on the side of the fourth segment structure (32) close to the rack (1), and the third segment structure (31) is magnetized with a second magnetic pole on the side facing the rack (1).

9. The support block assembly (10) according to claim 8, characterized in that, The support block assembly (10) further includes an adjusting member (4), which is located on the side of the support base (3) away from the rack (1). The support base (3) includes a fifth segment structure (33), and a fourth segment structure (32) is located between the third segment structure (31) and the fifth segment structure (33). The fourth segment structure (32) connects the third segment structure (31) and the fifth segment structure (33). The fifth segment structure (33) is magnetized so that the fifth segment structure (33) and the adjusting member (4) are magnetically attracted.

10. The support block assembly (10) according to claim 1, characterized in that, The rack (1) is magnetized as a whole; and / or the support (3) is a magnetic material component and is magnetized as a whole.

11. The support block assembly (10) according to claim 4, characterized in that, The support base (3) has a first groove (61) on the end face near the adjusting member (4) and / or the adjusting member (4) has a first groove (61) on the end face near the support base (3). The support block assembly (10) also includes a first buffer member (71), which is at least partially disposed in the first groove (61). The thickness of the first buffer member (71) is greater than the groove depth of the first groove (61).

12. The support block assembly (10) according to claim 1, characterized in that, The support block assembly (10) further includes a housing (5) having a first channel therein, and the support seat (3) is at least partially disposed in the first channel. The extension direction of the first channel has an angle with the length direction of the rack (1), and the support seat (3) is adapted to be close to or away from the rack (1) along the extension direction of the first channel.

13. The support block assembly (10) according to claim 12, characterized in that, The support block assembly (10) further includes a second buffer (72). The outer peripheral surface of the support base (3) is provided with a second groove (62). The second buffer (72) is disposed in the second groove (62) and abuts against the channel wall of the first channel.

14. The support block assembly (10) according to claim 13, characterized in that, There are multiple second slots (62), and the multiple second slots (62) are spaced apart in the extension direction of the first channel.

15. A steering system (100), characterized in that, include: Gear shaft (2), the gear shaft (2) includes a steering shaft (22) and a gear (21), the gear (21) being disposed on the steering shaft (22); The support block assembly (10) according to any one of claims 1-14, wherein the rack (1) meshes with the gear (21).

16. A vehicle (1000), characterized in that, Includes the steering system (100) as described in claim 15.

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