Steering gear shell, steering gear assembly and automobile

Abstract

The utility model relates to a steering gear shell, a steering gear assembly and an automobile. The steering gear shell comprises a rack shell, a first output shell, a first pressing block shell, a first mounting part, a first reinforcing structure and a second reinforcing structure, the first output shell and the rack shell are arranged in a crossed mode and connected. The first pressing block shell is connected to the rack shell; the first mounting part is connected to the rack shell; the first reinforcing structure is connected to the first output shell, the first pressing block shell and the rack shell. And the second reinforcing structure is connected between the first mounting part and the first output shell, the second reinforcing structure is connected to the rack shell, and the second reinforcing structure is connected to the first pressing block shell through the first reinforcing structure. The steering gear shell can achieve sufficient strength, rigidity and durability.

Description

Technical Field

[0001] The present disclosure relates to the technical field of control mechanisms, and particularly to a steering gear housing, a steering gear assembly, and an automobile. Background Art

[0002] When a vehicle moves, its moving direction often needs to be controlled. For example, the moving direction of an automobile can be controlled by controlling its wheels, and a common mechanism for controlling the wheels is a steering gear assembly. During the process of controlling an automobile, the steering gear assembly will be subjected to complex external forces, which requires it to have good strength.

[0003] With the development of the automobile industry, there are more and more requirements for energy conservation, emission reduction, cost reduction, and efficiency improvement in the future, and thus the demand for slimming down the automobile to reduce its weight is becoming increasingly strong.

[0004] However, when reducing weight, the stiffness or strength of structural components often decreases. Summary of the Utility Model

[0005] Based on this, it is necessary to provide a steering gear housing, a steering gear assembly, and an automobile for the problem of realizing a structure that is both lightweight and has good stiffness.

[0006] An embodiment of the present disclosure provides a steering gear housing, which includes: a rack housing, a first output housing, a first pressure block housing, a first mounting portion, a first strengthening structure, and a second strengthening structure. The first output housing is disposed intersectingly with and connected to the rack housing; the first pressure block housing is connected to the rack housing, and the first pressure block housing is disposed opposite to the first output housing; the first mounting portion is connected to the rack housing, and the first mounting portion and the first output housing are arranged along the rack axis defined by the rack housing and are spaced apart; the first strengthening structure is connected to the first output housing, the first pressure block housing, and the rack housing; the second strengthening structure is connected between the first mounting portion and the first output housing, the second strengthening structure is connected to the rack housing, and the second strengthening structure is connected to the first pressure block housing through the first strengthening structure.

[0007] By providing the first strengthening structure, the structural strength at the three positions of the rack housing, the first output housing, and the first pressure block housing is ensured, and the maximum stress range in the steering gear housing is protected; by providing the second strengthening structure, the stability of the first mounting portion is ensured, and further the structural stability of the first output housing, the rack housing, and the first mounting portion is strengthened. The steering gear housing of the embodiment of the present disclosure can achieve sufficient strength, stiffness, and durability with a relatively light total weight through the designed structural pattern.

[0008] Exemplarily, the first strengthening structure includes a first reinforcing rib, a second reinforcing rib, a third reinforcing rib, and a fourth reinforcing rib. The first reinforcing rib is connected to the first output housing, the first reinforcing rib is spaced apart from the rack housing and the first pressure block housing, and the second reinforcing rib, the third reinforcing rib, and the fourth reinforcing rib are respectively connected between the first pressure block housing and the first reinforcing rib.

[0009] With such a setting, a trident structure is formed, which can ensure sufficient strength, stiffness and durability.

[0010] Exemplarily, the second reinforcing structure includes a fifth reinforcing rib, a sixth reinforcing rib and a seventh reinforcing rib. The fifth reinforcing rib is connected between the first mounting portion and the first output housing. The sixth reinforcing rib is connected between the first output housing and the first pressing block housing. The seventh reinforcing rib is connected to the first mounting portion and is also connected to the fifth reinforcing rib, so that a triangular profile is formed at one end of the second reinforcing structure facing away from the rack housing.

[0011] With such a setting, it is beneficial to ensure that the first mounting portion and the first output housing have sufficient strength, stiffness and durability.

[0012] In some embodiments, at one end of the second reinforcing structure facing away from the rack housing, the side length of the sixth reinforcing rib is the same as that of the seventh reinforcing rib.

[0013] With such a setting, the second reinforcing structure is balanced in construction, which is beneficial to ensure that the first mounting portion and the first output housing have sufficient strength, stiffness and durability.

[0014] In some embodiments, the steering gear housing further includes a second output housing and a drive housing. The second output housing is coaxially butted with the first output housing, and the drive housing is connected to the second output housing.

[0015] With such a setting, the steering gear housing is suitable for compactly assembling the driver and can ensure the strength of the first output housing.

[0016] In some embodiments, the steering gear housing further includes a first connecting portion and a second connecting portion for connecting the second output housing; the second reinforcing rib, the third reinforcing rib and the fourth reinforcing rib are sequentially arranged facing away from the first mounting portion; the first connecting portion is connected between the first reinforcing rib, the second reinforcing rib, the sixth reinforcing rib and the seventh reinforcing rib, and the second connecting portion is connected between the first reinforcing rib and the fourth reinforcing rib.

[0017] With such a setting, it helps to ensure the strength, stiffness and durability of the second output housing; the steering gear housing is firmly assembled.

[0018] In some embodiments, the steering gear housing further includes an input housing, a second pressing block housing, a second mounting portion and a third reinforcing structure; the input housing is connected to the rack housing; the second pressing block housing is connected to the rack housing and is disposed opposite to the input housing; the second mounting portion is connected to the rack housing through the third reinforcing structure, and the second mounting portion is located closer to the input housing relative to the first output housing.

[0019] By setting the third reinforcing structure, the structural strength of the steering gear housing is ensured, and the stiffness and durability at the second mounting portion are ensured.

[0020] In some embodiments, the third reinforcing structure includes an eighth reinforcing rib, a ninth reinforcing rib, a tenth reinforcing rib, and an eleventh reinforcing rib. Both the eighth reinforcing rib and the ninth reinforcing rib are connected between the second mounting portion and the rack housing. The distance between the eighth reinforcing rib and the ninth reinforcing rib becomes farther and farther from the second mounting portion. The eighth reinforcing rib is connected to the second pressure block housing. The tenth reinforcing rib and the eleventh reinforcing rib are connected between the second pressure block housing and the eighth reinforcing rib.

[0021] With such an arrangement, a triangular area is formed by the eighth reinforcing rib and the ninth reinforcing rib, ensuring the connection strength. Also, another triangular area is cleverly formed by the eighth reinforcing rib, enabling the tenth reinforcing rib and the eleventh reinforcing rib to effectively enhance the strength of the second pressure block housing.

[0022] In some embodiments, the steering gear housing further includes a fourth reinforcing structure. The fourth reinforcing structure includes a twelfth reinforcing rib and a thirteenth reinforcing rib. The twelfth reinforcing rib and the thirteenth reinforcing rib are located on both sides of the input housing along the axial direction of the rack.

[0023] With such an arrangement, for the triangular stress area formed by the second mounting portion, the second pressure block housing, and the input housing, the strength of the input housing can be ensured by using the method of clamping on both sides.

[0024] In some embodiments, the rack housing has a first radial position. The radial plane at the first radial position is parallel to the axial direction of the input housing. The input housing has a second radial position. The radial plane at the second radial position is parallel to the axial direction of the rack housing. The twelfth reinforcing rib and the thirteenth reinforcing rib respectively bend and extend from the first radial position to the second radial position.

[0025] With such an arrangement, sufficient strength and stiffness are achieved with a simple and lightweight structure.

[0026] In some embodiments, the steering gear housing further includes a third mounting portion. The third mounting portion is connected to the rack housing. Along the axial direction of the rack, the third mounting portion is located between the first mounting portion and the second mounting portion. Within the mounting surface defined by the first mounting portion, the second mounting portion, and the third mounting portion, the first mounting portion and the second mounting portion are located on one side of the rack housing, and the third mounting portion is located on the other side of the rack housing.

[0027] With such an arrangement, the first mounting portion, the second mounting portion, and the third mounting portion form a triangular mounting point area, effectively improving the strength and mode of the steering gear housing, and also being beneficial to ensuring the connection strength between the steering gear housing and external devices such as the subframe.

[0028] In some embodiments, the steering gear housing further includes a fifth reinforcing structure, which includes a fourteenth reinforcing rib, a fifteenth reinforcing rib, a sixteenth reinforcing rib, and a seventeenth reinforcing rib. The fourteenth reinforcing rib, the fifteenth reinforcing rib, the sixteenth reinforcing rib, and the seventeenth reinforcing rib are respectively connected between the third mounting portion and the rack housing. The distance between the fourteenth reinforcing rib and the fifteenth reinforcing rib becomes farther and farther from the third mounting portion. The sixteenth reinforcing rib intersects the fourteenth reinforcing rib obliquely, and the intersection line extends between the third mounting portion and the rack housing. The seventeenth reinforcing rib intersects the fifteenth reinforcing rib obliquely, and the intersection line extends between the third mounting portion and the rack housing.

[0029] With such an arrangement, two V-shaped structures are formed on both sides of the third mounting portion, enhancing the strength of the third mounting portion. In addition, the bending and torsion resistance performance of the steering gear housing is improved.

[0030] The embodiments of the present disclosure provide a steering gear assembly, which includes: a rack; and the aforementioned steering gear housing, the rack housing is sleeved on the rack, and the rack housing is slidably connected to the rack.

[0031] The steering gear assembly according to the embodiments of the present disclosure is light in weight and good in performance.

[0032] The embodiments of the present disclosure provide an automobile, which includes: a subframe; and the aforementioned steering gear assembly, which is connected to the subframe.

[0033] The automobile according to the embodiments of the present disclosure has low energy consumption. Description of the Drawings

[0034] Figure 1 It is a schematic structural diagram of the steering gear housing according to the embodiments of the present disclosure;

[0035] Figure 2 It is a schematic assembled view of the steering gear assembly according to the embodiments of the present disclosure;

[0036] Figure 3 It is a partial structural schematic diagram of the first component in the embodiments of the present disclosure;

[0037] Figure 4 It is a structural schematic diagram of the second component in the embodiments of the present disclosure;

[0038] Figure 5 It is a schematic structural diagram of the steering gear housing according to the embodiments of the present disclosure;

[0039] Figure 6 It is a schematic structural diagram of the steering gear housing according to the embodiments of the present disclosure;

[0040] Figure 7 It is a schematic front view of the steering gear housing according to the embodiments of the present disclosure;

[0041] Figure 8Schematic bottom view of the steering gear housing according to an embodiment of the present disclosure;

[0042] Figure 9 Schematic top view of the steering gear housing according to an embodiment of the present disclosure;

[0043] Figure 10 Schematic structural diagram of the fifth strengthening structure in an embodiment of the present disclosure;

[0044] Figure 11 Schematic structural block diagram of an automobile in an embodiment of the present disclosure.

[0045] Explanation of reference numerals: 1, rack housing; 2, first output housing; 3, first press block housing; 4, first mounting portion; 5, first strengthening structure; 6, second strengthening structure; 7, second output housing; 8, drive housing; 9, first connection portion; 10, second connection portion; 11, third connection portion; 12, input housing; 13, second press block housing; 14, second mounting portion; 15, third strengthening structure; 16, fourth strengthening structure; 17, third mounting portion; 18, fifth strengthening structure;

[0046] 101, first reinforcing rib; 102, second reinforcing rib; 103, third reinforcing rib; 104, fourth reinforcing rib; 105, fifth reinforcing rib; 106, sixth reinforcing rib; 107, seventh reinforcing rib; 108, eighth reinforcing rib; 109, ninth reinforcing rib; 110, tenth reinforcing rib; 111, eleventh reinforcing rib; 112, twelfth reinforcing rib; 113, thirteenth reinforcing rib; 114, fourteenth reinforcing rib; 115, fifteenth reinforcing rib; 116, sixteenth reinforcing rib; 117, seventeenth reinforcing rib; 118, eighteenth reinforcing rib; 119, nineteenth reinforcing rib; 120, twentieth reinforcing rib;

[0047] 1000, steering gear housing; 1100, first component; 1200, second component; 2000, steering gear assembly; 2001, rack; 2002, input shaft; 2003, driver; 3000, automobile; 3001, subframe; 3002, wheel; 3003, wheel seat. Detailed implementation manners

[0048] To make the above objects, features and advantages of the embodiments of the present disclosure more obvious and understandable, the following will describe in detail the specific implementation manners of the embodiments of the present disclosure with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the embodiments of the present disclosure. However, the embodiments of the present disclosure can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the embodiments of the present disclosure. Therefore, the embodiments of the present disclosure are not limited by the specific examples disclosed below.

[0049] In the description of the embodiments of the present disclosure, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "perpendicular", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the embodiments of the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present disclosure.

[0050] In the embodiments of the present disclosure, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0051] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. Exemplarily, the first mounting portion may also be referred to as the second mounting portion, and the second mounting portion may also be referred to as the first mounting portion. In the description of the embodiments of the present disclosure, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0052] In the embodiments of the present disclosure, unless otherwise clearly specified and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a flexible connection or a rigid connection along at least one direction; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, or there may be an intermediate medium while being directly connected, and it may also be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. The terms "mounted", "arranged", "fixed", etc. can be understood in a broad sense as connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0053] As used herein, the terms "layer" and "zone" refer to a portion of a material that includes a region having a certain thickness. The layer can extend horizontally, vertically, and / or along a tapered surface. The layer can be a region of a uniform or non-uniform continuous structure, and the thickness perpendicular to the extension direction may not be greater than the thickness of the continuous structure. The layer can include multiple layers, which can be multiple stacked layers or multiple discretely extending layers. The shapes of various regions and layers in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may actually deviate due to manufacturing tolerances or technical limitations, and the design can be adjusted according to actual requirements.

[0054] Reference Figure 1 , Figure 1 shows a steering gear housing according to an embodiment of the present disclosure. In an exemplary embodiment, the steering gear housing 1000 includes a rack housing 1. In combination Figure 2 as shown, Figure 2 shows a steering gear assembly according to an embodiment of the present disclosure. In some embodiments, the steering gear assembly 2000 includes a steering gear housing 1000 and a rack 2001. The rack housing 1 can define a rack axis, and the rack 2001 is disposed through the rack housing 1 along the rack axis. The rack axis can be parallel to the Y-axis direction.

[0055] In combination Figure 3 as shown, the steering gear housing 1000 includes a rack housing 1, a first output housing 2, and a first pressure block housing 3. The first output housing 2 can define an output axis. The first output housing 2 is disposed crosswise with the rack housing 1 and is connected to the rack housing 1. The first output housing 2 can be used to dispose an output shaft (not shown), and the output shaft can be drivingly connected to the rack 2001. The first pressure block housing 3 is connected to the rack housing 1; the first pressure block housing 3 is disposed opposite to the first output housing 2, and their positions are on both sides of the rack housing 1, and they can have intersecting axes. The first pressure block housing 3 can be used to dispose a first pressure block (not shown), and the first pressure block can squeeze the rack 2001 to ensure the connection relationship between the rack 2001 and the output shaft. At the intersection of the rack axis of the rack housing 1, the output axis of the first output housing 2, and the central axis of the first pressure block housing 3, the maximum stress range of this part of the structure of the steering gear housing 1000 is formed.

[0056] Exemplarily, the steering gear housing 1000 further includes a first mounting portion 4, a first strengthening structure 5, and a second strengthening structure 6.

[0057] The first mounting portion 4 is connected to the rack housing 1, and the first mounting portion 4 and the first output housing 2 are arranged and spaced apart along the rack axis defined by the rack housing 1. Exemplarily, the first mounting end face of the first mounting portion 4 can be substantially parallel to the XY plane, and the output axis can be inclined relative to the XY plane.

[0058] The first output housing 2 can be connected to the first press block housing 3 through the first strengthening structure 5; along the circumferential direction of the rack housing 1, the first strengthening structure 5 is also connected to the part of the rack housing 1 located between the first output housing 2 and the first press block housing 3. The first output housing 2 is connected to the first mounting portion 4 through the second strengthening structure 6. The second strengthening structure 6 can be connected to the first strengthening structure 5 and thus indirectly connected to the first press block housing 3. The second strengthening structure 6 is also connected to the part of the rack housing 1 located between the first output housing 2 and the first mounting portion 4.

[0059] In some embodiments, the first strengthening structure 5 includes a first reinforcing rib 101, a second reinforcing rib 102, a third reinforcing rib 103, and a fourth reinforcing rib 104. The first reinforcing rib 101 is connected to the first output housing 2 and can be substantially perpendicular to the output axis. The first reinforcing rib 101 is spaced from the rack housing 1 and the first reinforcing rib 101 is spaced from the first press block housing 3. The second reinforcing rib 102, the third reinforcing rib 103, and the fourth reinforcing rib 104 are respectively connected between the first press block housing 3 and the first reinforcing rib 101, and the second reinforcing rib 102, the third reinforcing rib 103, and the fourth reinforcing rib 104 can be respectively connected to the rack housing 1. By providing the first strengthening structure 5, the structural strength at the three positions of the rack housing 1, the first output housing 2, and the first press block housing 3 is ensured, and the maximum stress range in the steering gear housing 1000 is protected. The first strengthening structure 5 can form an E-shaped or trident-shaped structure, which can ensure sufficient strength, stiffness, and durability.

[0060] Exemplarily, along the Y-axis direction, the third reinforcing rib 103 is located in the middle, and the second reinforcing rib 102 and the fourth reinforcing rib 104 are located on both sides of it. The size of the first reinforcing rib 101 is larger than the size of the first press block housing 3, and then the second reinforcing rib 102 and the fourth reinforcing rib 104 have a shape that deflects inward.

[0061] In some embodiments, the second strengthening structure 6 includes a fifth reinforcing rib 105, a sixth reinforcing rib 106, and a seventh reinforcing rib 107. The fifth reinforcing rib 105 is connected between the first mounting portion 4 and the first output housing 2. Exemplarily, the fifth reinforcing rib 105 is connected to the rack housing 1, and the fifth reinforcing rib 105 can extend substantially along the radial direction of the rack housing 1. The sixth reinforcing rib 106 is connected between the first output housing 2 and the first press block housing 3, and the sixth reinforcing rib 106 can be indirectly connected to the first press block housing 3. The seventh reinforcing rib 107 is connected to the first mounting portion 4, and the seventh reinforcing rib 107 is connected to the fifth reinforcing rib 105, so that the end of the second strengthening structure 6 facing away from the rack housing 1 forms a triangular profile. By providing the second strengthening structure 6, the stability of the first mounting portion 4 is ensured.

[0062] The first reinforcement structure 5 cooperates with the second reinforcement structure 6 to strengthen the structural stability of the first output housing 2, the first pressure block housing 3, and the first mounting portion 4 provided in the rack housing 1. The steering gear housing 1000 of the present disclosure implementation mode can achieve sufficient strength, stiffness, and durability performance with a relatively light total weight through the designed structural style.

[0063] When designing the steering gear housing 1000 of the present disclosure implementation mode, the Noise, Vibration, Harshness (NVH) indicators can be decomposed and structural innovations can be carried out, and computer-aided engineering (CAE) is used for auxiliary analysis and the design is based on the installation space layout. The steering gear housing 1000 is also verified through in-vehicle data acquisition. The strength of the steering gear housing 1000 is improved to achieve the NVH mode.

[0064] In some implementation modes, at one end of the second reinforcement structure 6 facing away from the rack housing 1, the side length of the sixth reinforcing rib 106 is the same as the side length of the seventh reinforcing rib 107, which is beneficial to ensuring that the first mounting portion 4 and the first output housing 2 have sufficient strength, stiffness, and durability performance. Exemplarily, the side lengths of the sixth reinforcing rib 106, the fifth reinforcing rib 105, and the seventh reinforcing rib 107 form an equilateral triangle.

[0065] Exemplarily, the second reinforcement structure 6 is a quadrangular pyramid, with the fifth reinforcing rib 105 as the bottom. One side of the second reinforcement structure 6 facing away from the first pressure block housing 3 is set as an opening, and another reinforcing rib can be provided on the side facing the first pressure block housing 3.

[0066] Reference Figure 4 , in some implementation modes, the steering gear housing 1000 further includes a second output housing 7 and a drive housing 8. The second output housing 7 is coaxially docked with the first output housing 2, and the drive housing 8 is connected to the second output housing 7. The steering gear housing 1000 is suitable for compactly assembling the driver 2003 and can ensure the strength of the first output housing 2.

[0067] In some implementation modes, the steering gear housing 1000 further includes a first connection portion 9 and a second connection portion 10. The first connection portion 9 and the second connection portion 10 are used to connect the second output housing 7; the second reinforcing rib 102, the third reinforcing rib 103, and the fourth reinforcing rib 104 are sequentially arranged facing away from the first mounting portion 4; the first connection portion 9 is connected between the first reinforcing rib 101, the second reinforcing rib 102, the sixth reinforcing rib 106, and the seventh reinforcing rib 107, and the second connection portion 10 is connected between the first reinforcing rib 101 and the fourth reinforcing rib 104. This helps to ensure the strength, stiffness, and durability performance of the second output housing 7; the steering gear housing 1000 is firmly assembled.

[0068] The steering gear housing 1000 may include a first component 1100 and a second component 1200. The second component 1200 may include a second output housing 7 and a drive housing 8. The second component 1200 can be assembled to the first component 1100. The first component 1100 may include a rack housing 1, a first output housing 2, a first pressure block housing 3, a first mounting portion 4, and other structures.

[0069] Exemplarily, a sixth reinforcing rib 106 is connected to the first pressure block housing 3 through a second reinforcing rib 102. At the first connection portion 9, a part of the second reinforcing rib 102 can be considered to be juxtaposed with the sixth reinforcing rib 106 in the Z-axis direction, or it can be considered that the second reinforcing rib 102 is connected to the first output housing 2 through the sixth reinforcing rib 106. The sixth reinforcing rib 106 and the second reinforcing rib 102 can be referred to as reused reinforcing ribs.

[0070] The wrapping angle of the first reinforcing structure 5 around the first output housing 2 is about 180°, and the wrapping angle around the first pressure block housing 3 can be about 180°.

[0071] Exemplarily, the steering gear housing 1000 further includes a third connection portion 11. The third connection portion 11, the second connection portion 10, and the first connection portion 9 can form a triangular layout around the first output housing 2. The third connection portion 11 is connected to the first output housing 2 through a reinforcing structure.

[0072] Reference Figure 5 , in some embodiments, the steering gear housing 1000 further includes an input housing 12, a second pressure block housing 13, a second mounting portion 14, and a third reinforcing structure 15. The input housing 12 is connected to the rack housing 1, and the two cross and are offset substantially in the Z-axis direction. The input shaft 2002 that meshes with the rack 2001 is disposed in the input housing 12. The second pressure block housing 13 is connected to the rack housing 1, and the second pressure block housing 13 is disposed opposite to the input housing 12, and a second pressure block for pressing the rack 2001 is disposed therein to ensure reliable connection between the rack 2001 and the input shaft 2002. The second mounting portion 14 is connected to the rack housing 1 through the third reinforcing structure 15, and the second mounting portion 14 is located closer to the input housing 12 relative to the first output housing 2. The third reinforcing structure 15 ensures the structural strength of the steering gear housing 1000 and ensures the stiffness and durability performance at the second mounting portion 14.

[0073] Combined Figure 1 As shown, the first mounting portion 4 and the second mounting portion 14 are respectively close to both ends of the rack housing 1. Along the Y-axis direction, the first mounting portion 4, the first output housing 2, the second pressure block housing 13, and the second mounting portion 14 are arranged in sequence.

[0074] Reference Figure 5 and Figure 8In some embodiments, the third reinforcing structure 15 includes an eighth reinforcing rib 108, a ninth reinforcing rib 109, a tenth reinforcing rib 110 and an eleventh reinforcing rib 111. The eighth reinforcing rib 108 and the ninth reinforcing rib 109 are both connected between the second mounting portion 14 and the rack housing 1, and the distance between the eighth reinforcing rib 108 and the ninth reinforcing rib 109 is getting farther and farther from the second mounting portion 14. The eighth reinforcing rib 108 is also connected to the second pressing block shell 13, for example, connected to the connection between the second pressing block shell 13 and the rack housing 1. The tenth reinforcing rib 110 and the eleventh reinforcing rib 111 are connected between the second pressing block shell 13 and the eighth reinforcing rib 108. The triangular area is formed by the eighth reinforcing rib 108 and the ninth reinforcing rib 109 to ensure the connection strength, and the eighth reinforcing rib 108 and the second pressing block shell 13 are cleverly used to form another triangular area, so that the tenth reinforcing rib 110 and the eleventh reinforcing rib 111 can effectively improve the strength of the second pressing block shell 13.

[0075] refer to Figure 8 , the portion between the second mounting portion 14 and the rack housing 1 can be formed into a 仐-shaped structure. Exemplarily, the first mounting portion 4 is connected to the rack housing 1 through another reinforcement structure, and the reinforcement structure can also be formed into a 仐-shaped structure. Exemplarily, the 仐-shaped structure is open at one end toward the mounting surface, and the other end can be blocked.

[0076] like Figure 5 As shown, in some embodiments, the steering gear housing 1000 also includes a fourth reinforcement structure 16, the fourth reinforcement structure 16 includes a twelfth reinforcement rib 112 and a thirteenth reinforcement rib 113, the twelfth reinforcement rib 112 and the thirteenth reinforcement rib 113 are located on both sides of the input housing 12 along the axial direction of the rack, the twelfth reinforcement rib 112 can be located on the right side of the figure, and the thirteenth reinforcement rib 113 can be located on the left side of the figure. Figure 5 The T2 region in the figure is a triangular force-bearing area formed by the second mounting portion 14, the second pressing block shell 13 and the input shell 12. The center points of the respective butt joints of the second mounting portion 14, the second pressing block shell 13 and the input shell 12 are called force-bearing points. For this triangular force-bearing area, the strength of the input shell 12 can be ensured by clamping on both sides.

[0077] The twelfth reinforcing rib 112 and the thirteenth reinforcing rib 113 may be subjected to CAE analysis to ensure the strength of the steering gear housing 1000 .

[0078] refer to Figure 7 In some embodiments, based on the XZ plane, the rack housing 1 has a first radial position, and the radial direction at the first radial position is parallel to the axial direction of the input housing 12; in other words, the radial surface at this position is parallel to the input shaft. Figure 6, within the cross-section of the input housing 12, the input housing 12 has a second radial position where the radial direction is parallel to the axial direction of the rack housing 1; in other words, the radial plane at this position is parallel to the rack axial direction. The twelfth reinforcing rib 112 and the thirteenth reinforcing rib 113 respectively bend and extend from the first radial position to the second radial position, achieving sufficient strength and stiffness with a simple and lightweight structure.

[0079] Exemplarily, with reference to the first radial position, the rack housing 1 is provided with four eighteenth reinforcing ribs 118 evenly distributed in the circumferential direction, which is beneficial to improving the bending and torsional resistance performance of the rack housing 1.

[0080] Reference Figure 3 And in combination with Figure 10 , the steering gear housing 1000 further includes a nineteenth reinforcing rib 119. The nineteenth reinforcing rib 119 is connected between the rack housing 1 and the first reinforcing structure 5. The nineteenth reinforcing rib 119 can be connected to one of the eighteenth reinforcing ribs 118, and then the nineteenth reinforcing rib 119 itself can have a bent shape. The nineteenth reinforcing rib 119 can be connected to the second connecting portion 10.

[0081] Exemplarily, the steering gear housing 1000 further includes a twentieth reinforcing rib 120, which is arranged between the second pressing block housing 13 and the input housing 12.

[0082] Reference Figure 8 、 Figure 9 And Figure 10 , in some embodiments, the steering gear housing 1000 further includes a third mounting portion 17, and the third mounting portion 17 is connected to the rack housing 1. Along the rack axial direction, the third mounting portion 17 is located between the first mounting portion 4 and the second mounting portion 14. Arranging the third mounting portion 17 between the relatively far-apart first mounting portion 4 and the second mounting portion 14 helps to improve the strength and mode of the steering gear housing 1000. Exemplarily, there are three mounting portions of the steering gear housing 1000, which are lightweight while achieving connection.

[0083] Reference Figure 8 , within the mounting surface defined by the first mounting portion 4, the second mounting portion 14, and the third mounting portion 17, the first mounting portion 4 and the second mounting portion 14 are located on one side of the rack housing 1, and the third mounting portion 17 is located on the other side of the rack housing 1. The first mounting portion 4, the second mounting portion 14, and the third mounting portion 17 form a mounting point triangular area, such as the T1 area shown in Figure 2 , which effectively improves the strength and mode of the steering gear housing 1000, and is also beneficial to ensuring the connection strength between the steering gear housing 1000 and external devices such as the subframe 3001. The mounting surfaces of the first mounting portion 4, the second mounting portion 14, and the third mounting portion 17 can be parallel to each other, for example, coplanar.

[0084] In combination with Figure 9and Figure 10 As shown in Figure 10 , in some embodiments, the steering gear housing 1000 further includes a fifth reinforcement structure 18. The fifth reinforcement structure 18 includes a fourteenth reinforcing rib 114, a fifteenth reinforcing rib 115, a sixteenth reinforcing rib 116, and a seventeenth reinforcing rib 117. The fourteenth reinforcing rib 114, the fifteenth reinforcing rib 115, the sixteenth reinforcing rib 116, and the seventeenth reinforcing rib 117 are respectively connected between the third mounting portion 17 and the rack housing 1. The distance between the fourteenth reinforcing rib 114 and the fifteenth reinforcing rib 115 becomes farther and farther from the third mounting portion 17. Based on the XY plane, the fourteenth reinforcing rib 114 and the fifteenth reinforcing rib 115 form a V shape. The sixteenth reinforcing rib 116 intersects the fourteenth reinforcing rib 114 obliquely, and the intersection line of the two extends between the third mounting portion 17 and the rack housing 1. The sixteenth reinforcing rib 116 and the fourteenth reinforcing rib 114 form a V-shaped structure, and the V-shaped opening of this structure can face upward along the Z-axis direction. The seventeenth reinforcing rib 117 intersects the fifteenth reinforcing rib 115 obliquely, and the intersection line of the two extends between the third mounting portion 17 and the rack housing 1. Referring to Figure 10 Figure 10 , the seventeenth reinforcing rib 117 and the fifteenth reinforcing rib 115 form a V-shaped structure. The openings of the two V-shaped structures of the fifth reinforcement structure 18 face the same side. Two V-shaped structures are formed on both sides of the third mounting portion 17, enhancing the strength of the third mounting portion 17. In addition, the bending and torsion resistance performance of the steering gear housing 1000 at this position is improved.

[0085] For the steering gear housing 1000 of the embodiments of the present disclosure, by providing reinforcement structures such as the first reinforcement structure 5 and the second reinforcement structure 6, and through the analysis and arrangement of each reinforcing rib, reliable use performance can be achieved. The steering gear housing 1000 can reduce the weight by 18% compared with a comparative example housing that needs to have the same performance without reinforcing ribs.

[0086] As Figure 2 shown in Figure 2 , the embodiments of the present disclosure provide a steering gear assembly 2000, which includes: a rack 2001 and a steering gear housing 1000. The steering gear housing 1000 can be the aforementioned steering gear housing 1000. The rack housing 1 is sleeved on the rack 2001, and the rack housing 1 is slidably connected to the rack 2001. The steering gear assembly 2000 of the embodiments of the present disclosure is light in weight and good in performance.

[0087] The steering gear assembly 2000 further includes a driver 2003. The driver 2003 is disposed in the drive housing 8, and the driver 2003 is drivingly connected to the rack 2001. Exemplarily, the driver 2003 can be drivingly connected to the rack 2001 through a worm and worm gear structure.

[0088] Exemplarily, the steering gear assembly 2000 further includes an input shaft 2002 disposed in the input housing 12. The input shaft 2002 meshes with the rack 2001 and can drive the rack 2001 to slide by rotation.

[0089] As Figure 11 shown, an embodiment of the present disclosure provides an automobile 3000, which includes a subframe 3001 and a steering gear assembly 2000. The steering gear assembly 2000 can be the aforementioned steering gear assembly 2000, which is connected to the subframe 3001.

[0090] In the automobile 3000 of the embodiment of the present disclosure, the steering gear assembly 2000 is light in weight and thus low in energy consumption. The steering control of the automobile 3000 can be realized by using the steering gear assembly 2000, and the performance is good.

[0091] Exemplarily, the wheel 3002 is rotatably connected to the subframe 3001 through a wheel carrier 3003, and the wheel 3002 is rotatably connected to the wheel carrier 3003. The steering gear assembly 2000 can control the rotation of the wheel carrier 3003 relative to the subframe 3001 to realize the deflection of the wheel 3002 relative to the subframe, so that the automobile 3000 can steer.

[0092] The technical features of the above-disclosed embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0093] The above-disclosed embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the patent protection scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the patent protection scope required by the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. Steering gear housing, characterized in that: include: Rack housing; A first output housing, cross-arranged and connected to the rack housing; A first pressing block shell is connected to the rack shell, and the first pressing block shell is arranged opposite to the first output shell; A first mounting portion connected to the rack housing, wherein the first mounting portion and the first output housing are arranged axially along the rack defined by the rack housing and are spaced apart; A first reinforcement structure connected to the first output housing, the first pressure block housing and the rack housing; as well as The second reinforcement structure is connected between the first mounting portion and the first output housing, the second reinforcement structure is connected to the rack housing, and the second reinforcement structure is connected to the first pressure block housing through the first reinforcement structure.

2. The steering gear housing according to claim 1, characterized in that: The first reinforcement structure includes a first reinforcement rib, a second reinforcement rib, a third reinforcement rib and a fourth reinforcement rib, the first reinforcement rib is connected to the first output housing, the first reinforcement rib is spaced apart from the rack housing and the first pressing block housing, and the second reinforcement rib, the third reinforcement rib and the fourth reinforcement rib are respectively connected between the first pressing block housing and the first reinforcement rib; The second reinforcement structure includes a fifth reinforcement rib, a sixth reinforcement rib and a seventh reinforcement rib, the fifth reinforcement rib is connected between the first mounting portion and the first output shell, the sixth reinforcement rib is connected between the first output shell and the first pressure block shell, the seventh reinforcement rib is connected to the first mounting portion, and the seventh reinforcement rib is connected to the fifth reinforcement rib, so that the end of the second reinforcement structure facing away from the rack shell forms a triangular profile.

3. The steering gear housing according to claim 2, characterized in that: It also includes a second output shell, a drive shell, a first connecting portion and a second connecting portion, wherein the second output shell is coaxially connected to the first output shell, and the drive shell is connected to the second output shell; The first connecting portion and the second connecting portion are used to connect the second output housing; The second reinforcing rib, the third reinforcing rib and the fourth reinforcing rib are arranged in sequence facing away from the first mounting portion; The first connection portion is connected between the first reinforcing rib, the second reinforcing rib, the sixth reinforcing rib and the seventh reinforcing rib, and the second connection portion is connected between the first reinforcing rib and the fourth reinforcing rib.

4. The steering gear housing according to any one of claims 1 to 3, characterized in that: It also includes an input shell, a second pressing block shell, a second mounting portion and a third reinforcement structure; The input housing is connected to the rack housing; the second pressure block housing is connected to the rack housing and is arranged opposite to the input housing; the second mounting portion is connected to the rack housing through the third reinforcement structure, and the second mounting portion is located close to the input housing relative to the first output housing.

5. The steering gear housing according to claim 4, characterized in that: The third reinforcement structure includes an eighth reinforcement rib, a ninth reinforcement rib, a tenth reinforcement rib and an eleventh reinforcement rib, the eighth reinforcement rib and the ninth reinforcement rib are both connected between the second mounting portion and the rack housing, the distance between the eighth reinforcement rib and the ninth reinforcement rib becomes increasingly farther from the second mounting portion, the eighth reinforcement rib is connected to the second pressure block shell, and the tenth reinforcement rib and the eleventh reinforcement rib are connected between the second pressure block shell and the eighth reinforcement rib.

6. The steering gear housing according to claim 4, characterized in that: It also includes a fourth reinforcement structure, the fourth reinforcement structure includes a twelfth reinforcement rib and a thirteenth reinforcement rib, the twelfth reinforcement rib and the thirteenth reinforcement rib are located on both sides of the input housing along the axial direction of the rack; The rack housing has a first radial position, and a radial surface at the first radial position is parallel to the axial direction of the input housing; the input housing has a second radial position, and a radial surface at the second radial position is parallel to the axial direction of the rack housing; The twelfth reinforcing rib and the thirteenth reinforcing rib are bent and extended from the first radial position to the second radial position respectively.

7. The steering gear housing according to claim 4, characterized in that: It also includes a third mounting portion, which is connected to the rack housing; along the axial direction of the rack, the third mounting portion is located between the first mounting portion and the second mounting portion; within the mounting surface defined by the first mounting portion, the second mounting portion and the third mounting portion, the first mounting portion and the second mounting portion are located on one side of the rack housing, and the third mounting portion is located on the other side of the rack housing.

8. The steering gear housing according to claim 7, characterized in that: It also includes a fifth reinforcement structure, the fifth reinforcement structure includes a fourteenth reinforcement rib, a fifteenth reinforcement rib, a sixteenth reinforcement rib and a seventeenth reinforcement rib, the fourteenth reinforcement rib, the fifteenth reinforcement rib, the sixteenth reinforcement rib and the seventeenth reinforcement rib are respectively connected between the third mounting portion and the rack housing; The distance between the fourteenth reinforcing rib and the fifteenth reinforcing rib becomes increasingly farther from the third mounting portion, the sixteenth reinforcing rib obliquely intersects with the fourteenth reinforcing rib and the intersection line extends between the third mounting portion and the rack housing, and the seventeenth reinforcing rib obliquely intersects with the fifteenth reinforcing rib and the intersection line extends between the third mounting portion and the rack housing.

9. Steering gear assembly, characterized in that: include: rack; and The steering gear housing according to any one of claims 1 to 8, wherein the rack housing is sleeved on the rack, and the rack housing is slidably connected to the rack.

10. An automobile, characterized in that include: Subframe; and The steering gear assembly as claimed in claim 9, connected to the subframe.

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